WORKSWELL WIRIS mini · 6.INTRODUCTION 6 Introducon WorkswellWIRISMINIisthethermalimagingsystemforunmannedaerialvehicles(UAVs,drones).Itisalightweight …

WORKSWELLWIRIS mini

USER MANUAL

FW Version: 1.0.0

Release date: 17th April, 2018

Revision : 1.0 EN

Contents

1. Legal Disclaimer 41.1 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Warning and Cau ons 52.1 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.2 No ca ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Help and FAQ 63.1 General Instruc ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. User Informa on 74.1 Typographic Conven ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.2 Help and Community Forum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.3 Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.4 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5. Revision History 8

6. Introduc on 9

7. System assembly 117.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117.2 Connec ng the system to a wireless video link or display . . . . . . . . . . . . . . . . . . . . . 127.3 Connec ng the system to a standard RC receiver . . . . . . . . . . . . . . . . . . . . . . . . . 127.4 USB Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137.5 Connec ng the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137.6 Turning the system OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147.7 Shu er calibra on of the infrared camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147.8 Moun ng the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157.9 GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

8. Digital IO Ports 178.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178.2 Hardware compa bility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178.3 Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.3.1 PWMmode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188.3.2 Trigger mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8.4 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198.5 S.BUS Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8.5.1 S.BUS through Amimon Connex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198.5.2 S.BUS through DJI Lightbridge 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9. System appearance 229.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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10. SystemMenu (Se ngs) 2510.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2510.2 Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2610.3 Isotherms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2710.4 Func ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3010.5 Pale e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3110.6 Advanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.6.1 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3310.6.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3410.6.3 Save Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3510.6.4 Isotherms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3610.6.5 Communica on Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3710.6.6 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3910.6.7 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4010.6.8 Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

11. USB ash drive menu 4211.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

12. Data Transfer 4312.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

13. Firmware update 4513.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4513.2 Update key copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4513.3 Update key upload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4613.4 Firmware update process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

14. Workswell CorePlayer 4814.1 General Descrip on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

15. Environment Condi ons 4915.1 Environment Condi ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

16. Infrared camera behaviour 5016.1 Infrared camera warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5016.2 Non-uniformity correc on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

17. Maintanance 5117.1 Cleaning the WIRIS head and cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5117.2 Cleaning the infrared lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

18. Troubleshoot 5218.1 Turning ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5218.2 Safe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5218.3 Reset to factory default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5318.4 Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

E-mail and [email protected]

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HeadquartersLibocka 653/51bPrague, Czech Republic

Revision 1.0 EN, 17th Apr, 2018All pictures are only for illustra on.Real values may vary.

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18.5 System Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53


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1. LEGAL DISCLAIMER

1 Legal Disclaimer

All products (so ware, hardware or rmware) manufactured byWorkswell s.r.o. are warranted against defec vematerials and workmanship for a period of twelve (12) months, provided such products have been under normalstorage and use in accordance with herein instruc ons.

The warranty extends only to the original purchaser and is not transferable. It is not applicable to any productwhich has been subjected to misuse, neglect, accident or abnormal condi ons of opera on.

In the case of a defect in a product covered by this warranty the product must not be further used in order toprevent addi onal damage. The purchaser shall promptly report any defect to Workswell s.r.o. or its authorizeddistributor or this warranty will not apply.

Workswell s.r.o. will, at its op on, repair or replace any such defec ve product free of charge if, upon inspec on,it proves to be defec ve in material or workmanship and provided that it is returned to Workswell within thesaid twelve-month period.

Nobody but Workswell s.r.o. is allowed to open or modify such product.

Workswell s.r.o. has no other obliga on or liability for defects than those set forth above. No other warrantyis expressed or implied. Workswell s.r.o. shall not be liable for any direct, indirect, special, incidental or conse-quen al loss or damage, whether based on contract, tort or any other legal theory.

1.1 Copyright

© Workswell s.r.o. All rights reserved worldwide. No parts of the so ware including source code may be re-produced, transmi ed, transcribed or translated into any language or computer language in any form or by anymeans, electronic, magne c, op cal, manual or otherwise, without the prior wri en permission of Workswells.r.o.

Names andmarks appearing on the products herein are either registered trademarks or trademarks ofWorkswells.r.o. All other trademarks, trade names or company names referenced herein are used for iden ca on onlyand are the property of their respec ve owners.


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2. WARNING AND CAUTIONS

2 Warning and Cau ons

2.1 Warnings

Before using the product, please read the whole User Manual. Before power-up the camera or drone, pleasecheck that there is no visible damage or malfunc on, cables are connected properly and check the correct po-larity.

If there are any visible signs of damage or other defect on the device, or you are not sure with the connec on,then on no account should it be installed or put into opera on.

Any interference and non-cer ed service opera ons into the product leads to an automa c loss of warranty.

2.2 No ca ons

Do not use or store the device in con ict with the storage and opera ng condi ons laid down in this manual(only for hardware).

Do not point the infrared camera (with or without the lens cover) at strong energy sources, for example,devices that cause laser radia on, or the sun. This can have an unwanted e ect on the accuracy of thecamera. It can also cause damage to the detector in the camera.

Plug the camera to its own power source. Do not plug the camera into the same power source as drone’smotors.

Use original accessories only.

Do not plug any power to the GPS/Mavlink power pin.

Do not use the Workswell WIRIS MINI system in temperatures higher than +50◦C (+122◦F). High temper-atures can cause damage to the camera.

Do not use the Workswell WIRIS MINI system in temperatures lower than -15◦C (+5◦F). Low temperaturescan cause damage to the camera.

Do not apply solvents or equivalent liquids to the cameras, the cables, or other items. Damage to the itemscan occur. For cleaning refer to chapter 17.

Be carefulwhen you clean the infrared lens. The lens has an an -re ec ve coa ngwhich is easily damaged.Do not use too much force to clean the infrared lens. This can cause damage to the an -re ec ve coa ng.

The encapsula on ra ng is only applicable when all the openings on the all components of the system aresealed with their correct covers, hatches, or caps.


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3. HELP AND FAQ

3 Help and FAQ

3.1 General Instruc ons

While looking for a solu on of any technical problem we recommend following these steps:

try to nd an answer by searching this User Manual

contact your dealer

send an email to [email protected]


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4. USER INFORMATION

4 User Informa on

4.1 Typographic Conven ons

Following typographic conven ons are used in this User Manual:

UPPER CASE is used for the names of keys, bu ons and menu items

COURIER is used for lenames and paths

Italic is used for important informa on and document names

bold is used for the links to other sec ons, for func on names or Internet sites

4.2 Help and Community Forum

For technical ques ons that were not answered in this User Manual feel free to contact your dealer or visit theproduct website at www.drone-thermal-camera.com, or send an email on [email protected].

4.3 Updates

The primary aim of Workswell s.r.o. company is to supply their products in a way to meet the current needs ofits users and at the same me to remove all the weaknesses that were found in their use as soon as possible.For this reason, Workswell s.r.o. regularly releases updates for all their products.

4.4 Firmware

Firmware is the „internal“ control program of the device. From the user’s point of view, only the o cial rmwarereleased by Workswell s.r.o. company can be used for update of the device.


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5. REVISION HISTORY

5 Revision History

1.0.0

ini al revision


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6. INTRODUCTION

6 Introduc on

WorkswellWIRISMINI is the thermal imaging system for unmanned aerial vehicles (UAVs, drones). It is a lightweightall-in-one system equipped with a thermal imaging camera and a visible spectrum camera. The aim of the wholesystem is the simple transfer, storage and processing of radiometric (temperature) data directly from an un-manned aerial vehicle (drone) and displaying the data on the screen of the UAV remote controller in real me.The system also o ers a variety of measurement func ons, colour pale es or alarm (security) modes, which canbe combined with a visible spectrum camera.

Figure 6.1 – Workswell WIRIS MINI connected to a standard FPV monitor (monitor not included)

WorkswellWIRISMINI is designed in order to allow controlling all its func ons during a ight. The system has vedigital inputs, which are fully compa ble with standard RC receivers. Two inputs serve as naviga on bu ons inthe menu, the rest are shortcuts for the selected func ons (image capturing, video recording, pale e switching,zoom and many others).

The system supports a wireless video recording from a thermal imaging camera and a wireless image makingfrom both, thermal imaging camera and visible spectrum camera. Data (video or individual images) can be saved


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6. INTRODUCTION

directly using the UAV remote controller via the digital input ports on a control unit.

The system o ers a digital or analog video output. There is enough space for both live streams (thermal imagingcamera stream and visible spectrum camera stream) on screen at one me.


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7. SYSTEM ASSEMBLY

7 System assembly

7.1 General Descrip on

Follow these steps to prepare the system:

1) Connect the system to a wire-less video link or a display usingHDMI micro cable (included) oranalogue cable.

2) Connect the system to a stan-dard RC receiver using at least 2servo cables (included) or usingS.BUS. Use input 1 and 2 in or-der to control the main func ons.System can be controlled also viaUSB keyboard.

3) Connect the power supplyusing power supply cable

(included). Red wire is +7 to +28VDC, black wire is GND.


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7. SYSTEM ASSEMBLY

7.2 Connec ng the system to a wireless video link or display

The Workswell WIRIS system is equipped with a standard HDMI micro video output. It can be connected to anywireless video link or a display with HDMI input that supports WIRIS MINI resolu on. It is recommended to usea display with 16:9 aspect ra o. For addi onal informa on about resolu on se ngs, please see the subsec on10.6.2 Display.

Figure 7.1 – Connex wireless video link and DJI Lightbridge (not included)

The system can be connected to a wireless video link or a display using supplied lightweight HDMI cable oranalogue video output.

7.3 Connec ng the system to a standard RC receiver

The Workswell WIRIS MINI system is equipped with 4 digital inputs (standard servo male connectors) and S.BUSinput. These inputs allow user to control the system remotely during the ight.

The rst two digital inputs serve as a naviga on bu ons in the menu. These two inputs are necessary for con-trolling the whole system. The rest 2 digital inputs are customizable and can be used as a shortcut to selectedfunc ons of the system such as zoom, video recording, image capturing, etc.

It is recommended to use a joys ck for naviga on in system menu. If connected as recommended, then thebehavior of the joys ck is as shown on the following image.

More informa on about digital inputs can be found in sec on 8 Digital IO Ports.


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7. SYSTEM ASSEMBLY

Digital Input Func on

1 Up/Down

2 OK/Cancel

3-4 Op onal (shorcuts)

7.4 USB Keyboard

Besides the digital inputs, the Workswell WIRIS MINI system can be controlled also via standard USB keyboard.Once the keyboard is connected, it can be used for naviga on in systemmenu, for image capturing, video record-ing, mode switching, zoom or se ng numerical values.

The following table shows the behavior of connected keyboard

Key Func on

Up Up

Down Down

Enter OK/Menu

Escape Cancel

F4 System shut down

F5 Mode switching

F6 Image capturing

F7 Video recording

F8 Calibra on

7.5 Connec ng the power supply

The Workswell WIRIS MINI system can be powered through a 7-28 VDC connector on the back panel. The backpanel DC connector is compa ble with a 5.5 mm/OD (outer diameter) and 2.5 mm/ID (inner diameter) plug,


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7. SYSTEM ASSEMBLY

where the inner contact is +7-28 VDC and the shell is GND.

Figure 7.2 – Inner power supply contact.

The standard package contains appropriate 5.5x2.5mm coaxial connector with a cable (length of 80 cm).

Figure 7.3 – Power supply cable - GND (Black wire) - VCC (Red wire).

Warning: Failure to follow these instruc ons could damage the system

7.6 Turning the system OFF

To turn the system o , unplug it from power supply.

7.7 Shu er calibra on of the infrared camera

WIRIS MINI infrared camera has not internal shu er, thus the external shu er is needed. The shu er calibra onis needed for accurate measurement and to improve thermal image quality.

When camera starts, the image stream will be covered un l the shu er calibra on is performed. The shu ercalibra on will start automa cally when the lens cap is placed or it can be started from menu.

To perform calibra on manually, enter the menu Advanced -> Measurement and select the Calibra on op on.In case you do not have the calibra on cap, you can use any homogeneous non-re ec ve surface instead.

General recommenda ons:Before star ng the measurement, let the camera temperature stabilize for few minutes. Then do theshu er calibra on.

When the image quality decreases, do the shu er calibra on.

When the temperature of camera or the temperature of environment changes, do the shu er calibra on.


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7. SYSTEM ASSEMBLY

7.8 Moun ng the system

The Workswell WIRIS MINI system can be mounted to a drone using the 1/4-20 UNC thread (one on bo om orone on back side).

7.9 GPS

The Workswell WIRIS MINI system is equipped with GPS interface with jack connector. As for the physical layer,the Workswell WIRIS system is designed for opera ng voltage of 5 V, although it is tolerant to 3.3 V.

opera ng voltage of 5 V, although it is tolerant to 3.3 V

supports standard NMEA protocol at baud rate 115200 bps

GPS connected to the GPS connector is indicated by the GPS icon in the Status bar


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7. SYSTEM ASSEMBLY

Figure 7.4 – GPS pinout - 4 pin 3.5mm jack.

Pin Descrip on

1 VCC 5V out

2 RXD TTL input

3 TXD TTL output

4 GND

Figure 7.5 – GPS icon in the Status bar.

Lis ng 7.1 – NMEA string example$GNGGA,123519 ,4807 .038 ,N, 01131 . 000 , E , 1 , 0 8 , 0 . 9 , 5 4 5 . 4 ,M, 4 6 . 9 ,M, ,*47

Where :GGA G loba l P o s i t i o n i n g System F i x Data123519 F i x taken a t 12 : 35 : 19 UTC4807 .038 ,N L a t i t u d e 48 deg 07 .038 ’ N01131 .000 , E Long i t ude 11 deg 31 .000 ’ E1 F i x q u a l i t y : 0 = i n v a l i d1 = GPS f i x ( SPS )2 = DGPS f i x3 = PPS f i x4 = Rea l Time K i nema t i c5 = F l o a t RTK6 = es t ima ted ( dead r e c kon i n g ) ( 2 . 3 f e a t u r e )7 = Manual i n pu t mode8 = S imu l a t i o n mode08 Number o f s a t e l l i t e s be ing t r a c k ed0 . 9 H o r i z o n t a l d i l u t i o n o f p o s i t i o n545 . 4 ,M A l t i t u d e , Meters , above mean sea l e v e l46 . 9 ,M He i gh t o f geo id (mean sea l e v e l ) above WGS84e l l i p s o i d( empty f i e l d ) t ime i n seconds s i n c e l a s t DGPS update( empty f i e l d ) DGPS s t a t i o n ID number*47 the checksum data , a lways beg i n s wi th *


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8. DIGITAL IO PORTS

8 Digital IO Ports


The Workswell WIRIS MINI system is equipped with 4 digital IO ports. Each of these IO ports can be set as inputand allow user to control the system remotely via standard RC system or control unit of the UAV. Also, it can beset as output and indicate some system states, i.e. the moment when an image was taken.

By default, all Digital IO Ports are set as digital inputs for controlling the system. First 2 digital inputs are xedand serve as a naviga on in systemmenu. These 2 inputs work in so called PWMmode, whichmeans, that PWMinput from standard RC receiver is expected. More informa on about PWM mode can be found in subsec on8.3.1 PWMmode.The rest 2 digital IO ports are fully customizable by user. These inputs can work in PWMmode or in trigger mode(see sec on 8.3.2 Trigger mode). User can select the mode - Input PWM, Input Trigger or Output - as well as itsfunc on via the system menu.

8.2 Hardware compa bility

Each digital IO port consists of 3 pins. These 3 pins are ground (GND), power supply output +5VDC (+) andcontrol signal (S). The Workswell WIRIS MINI system comes with 2 servo cables that can be used for connec ngthe system to standard RC receiver. The power supply pin can be used for powering your RC receiver.

Figure 8.1 – Servo connector example.

Note: Power supply is not required, GND and control signal are necessary.Note: Do not plug any voltage to the +5V power output pin.


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8. DIGITAL IO PORTS

8.3 Digital Inputs

8.3.1 PWMmode

PWMmode is the default mode for each digital IO port. It means that PWM signal is expected on the input pin.PWM signal from standard RC receiver has the following parameters:

Figure 8.2 – PWM signal example. Pulse length 1-2ms, period 20ms

In PWMmode 3 types of control elements are dis nguished:

2 state element – on/o switch, bu on

• ACTIVATED for pulse length > 1.5 ms

• DEACTIVATED for pulse length < 1.5 ms

3 state element - 3 state switch• STATE 1 for pulse length < 1.25 ms

• STATE 2 for 1.25 ms < pulse length < 1.75 ms

• STATE 3 for pulse length > 1.75 ms

Propor onal element - joys ck, poten ometer

• LEVEL is current pulse length. Allows user to control some func ons propor onally.

Instead of 4 standard digital PWM inputs you can use the S.BUS input port. In case that your RC controller isequipped with the S.BUS func on, you can use this op on to control the system with only one cable. All of thefunc ons and PWMmodes are the same as with the standard PWM input pins.

Note: Do not use voltage higher than 5V.


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8. DIGITAL IO PORTS

8.3.2 Trigger mode

If any digital input is in the trigger mode, the func on is ac vated on every falling edge or connec ng to the GND.This can be used for controlling the Workswell WIRIS system directly from UAV control unit. There are severalfunc ons available such as capturing images and recording video, which you can select in the advanced menu.

Figure 8.3 – Trigger signal example.

Note: Do not use voltage higher than 5V.

8.4 Digital Outputs

Each of the 2 addi onal digital IO ports can be selected as digital output (the rst two IO ports are reservedfor controlling the system). There are several func ons available such as indica on of the captured image orcalibra on, which you can select in the advanced menu.

The default (OFF) state of each digital output is 0V. When the selected func on is performed, i.e. image is cap-tured, +5V is set to the digital output for the me of 100ms. A er that, 0V is set again.

Figure 8.4 – Output signal example.

Note: Do not drain current higher than 30mA per each digital IO port.

8.5 S.BUS Input

Instead of 4 standard digital PWM inputs the S.BUS input port can be used. It is standard used for Futaba RCcontrollers. Only the rst version of S.BUS is supported.

Another se ng regarding S.BUS is the S.BUS O set. Since S.BUS has up to 16 channels, the S.BUS O set can beset between 0 to 9. For more details, see Table 8.1.

8.5.1 S.BUS through Amimon Connex

S.BUS signal from RC transceiver can be sent through Amimon Connex, so there is no need for the receiver. Forthis, you need the Amimon Connex and RC transceiver with TRAINER support.


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8. DIGITAL IO PORTS

S.BUS O set S.BUS Channel WIRIS IO

0 1 1

0 7 7

1 1 -

1 2 1

1 7 6

9 10 1

9 16 7

Table 8.1 – S.BUS O set example - which S.BUS Channel corresponds to WIRIS IO

1. Connect the RC transceiver TRAINER port to Amimon Connex receiver.

2. Connect the Amimon Connex transceiver S.BUS port to WIRIS S.BUS input.

3. Set up the TRAINER channels in RC transceiver.

This se ng was tested with Futaba T148G RC controller (TRAINER se ng to 8 CH. mode).

Figure 8.5 – Amimon Connex TRAINER cable (le ) and S.BUS cable (right).

8.5.2 S.BUS through DJI Lightbridge 1

S.BUS signal from RC transceiver can be sent through DJI Lightbridge 1, so there is no need for the receiver. Forthis, you need the DJI Lightbridge 1 and RC transceiver with TRAINER support.

1. Connect the RC transceiver TRAINER port to DJI Lightbridge 1 receiver (mono jack to TRAINER port andstereo jack to DJI Lightbridge 1).

2. Connect the DJI Lightbridge 1 transceiver S.BUS port to WIRIS S.BUS input.


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8. DIGITAL IO PORTS

3. Set up the TRAINER channels in RC transceiver.

This se ng was tested with Futaba T148G RC controller (TRAINER se ng to 12 CH. mode).

Figure 8.6 – DJI Lightbridge 1 TRAINER cable (le ) and S.BUS cable (right).


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9. SYSTEM APPEARANCE

9 System appearance


The Workswell WIRIS MINI system will start in several seconds a er connec ng to the power supply. Once thesystem is loaded, perform the shu er calibra on. Then the following screen appears.

Figure 9.1 – Main screen.

This screen consists of the following parts

MAIN CAMERA WINDOW - live stream from the selected camera

CAMERA PREVIEWWINDOW - addi onal live stream camera window

TEMPERATURES WINDOW - temperature informa on

STATUS BAR - system informa on


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Figure 9.2 – Main camera window.

MAIN CAMERA WINDOW shows live stream from the selected camera (infrared or visible spectrum). In caseof infrared camera, the image from the camera with applied color pale e complements the temperature scale(legend). It is possible to switch between infrared and visible spectrum camera during the ight.

Figure 9.3 – Camera preview window.

CAMERA PREVIEWWINDOW is addi onal live stream camera window. This window shows live stream from thecamera that is not set as a main camera (shown in MAIN CAMERA WINDOW). In case of infrared camera, theimage does not complement temperature scale (legend). The min/max and center crosses are not shown inCAMERA PREVIEWWINDOW.


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Figure 9.4 – Temperatures window.

TEMPERATURESWINDOW shows the most important temperature informa on during the whole ight. It showsthe maximum temperature in the scene, the minimum temperature in the scene and also the temperature ofcenter spot. In addi on, the maximum/minimum temperature in several last seconds is shown.

Figure 9.5 – Status bar.

STATUS BAR contains all the important informa on about the running system such as zoom factor (and the cor-responding image resolu on), me from last shu er calibra on (NUC), GPS informa on (when GPS connected),temperature range, number of captured images and minutes of recorded video and remaining free disc space.


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10. SYSTEMMENU (SETTINGS)

10 SystemMenu (Se ngs)


The Workswell WIRIS MINI system o ers many op ons of customiza on. All the con gura on can be done us-ing the SYSTEM MENU. SYSTEM MENU can be opened by moving the joys ck to the right side (if connected asrecommended) or by clicking ENTER bu on (if standard USB keyboard connected). The MAINMENU will appearon the le side of MAIN CAMERA WINDOW.

Figure 10.1 – Main menu.

The SYSTEMMENU is divided into 5 categories:

RANGE - Automa c or manual temperature range, temperature limits

ISOTHERMS - Isotherm mode, isotherm limits

FUNCTIONS - Capture, record, switch mode, zoom, min/max/center cross

PALETTE - 18 di erent color pale es

ADVANCED - Measurement, Display, Save Images, Isotherms, Communica on Interface, Memory, Systemand Info


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10.2 Range

RANGE category allows user to choose between automa c and manual temperature range. In case of manualtemperature range, it is also possible to set both, upper and lower limits to required temperature.

RANGE menu consists of the following items:

RANGE - AUTOMATIC or MANUAL

MAX - Manual temperature range maximum. Available only when MANUAL range selected

MIN - Manual temperature range minimum. Available only when MANUAL range selected

Note: When switching tomanual temperature range,MAX andMIN values are set to lastmaximumandminimumvalues of automa c temperature range.

AUTOMATIC temperature range sets the color pale ewith regards tominimumandmaximum temperaturemea-sured in the scene. Automa c range is indicated by the A le er shown above the temperature legend.

Figure 10.2 – Range se ngs – AUTOMATIC.

Changes are shown in real me. The changes can be con rmed by selec ng OK or canceled by selec ng Cancel.

MANUAL temperature range distributes the colors of the selected color pale e linearly betweenminimum (MIN)and maximum (MAX) limits that were set by user. Manual range is indicated by the M le er shown above thetemperature legend.


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Figure 10.3 – Range se ngs – MANUAL.

When the manual maximum is set lower than the maximummeasured temperature in the scene or the manualminimum is set higher than the minimal measured temperature in the scene, some of the values are saturated.This is indicated by the red maximum sign and/or by the blue minimum sign in the temperature legend.

10.3 Isotherms

ISOTHERMS category allows user to select type of isotherm func on (Below, Above, Between andAbove&Below)and also set the temperature limits.

ISOTHERMS menu consists of the following items:

ISOTHERM - ON or OFF

MODE - BELOW, ABOVE, BETWEEN or ABOVE & BELOW. Available only when Isotherm is set to ON.

ABOVE LIMIT - Above limit for mode ABOVE, BETWEEN and ABOVE & BELOW. Available only when one ofthese modes is selected.

BELOW LIMIT - Below limit for mode BELOW, BETWEEN and ABOVE & BELOW. Available only when one ofthese modes is selected

Note: When isotherms are turned on, the color pale e is changed to gray-scale pale e by default. In order tokeep the color pale e that was set by user, op on in Advanced menu is available.

Below is the descrip on for each isotherms mode.

ABOVE mode marks all the areas that have higher temperature than ABOVE LIMIT set by user.


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Figure 10.4 – Isotherms se ngs – ABOVE.

BELOWmode marks all the areas that have lower temperature than BELOW LIMIT set by user.

Figure 10.5 – Isotherms se ngs – BELOW.

BETWEEN mode marks all the areas that have higher temperature than BELOW LIMIT and lower temperaturethan ABOVE LIMIT.


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Figure 10.6 – Isotherms se ngs – BETWEEN.

ABOVE&BELOWmodemarks all the areas that have higher temperature thanABOVE LIMIT or lower temperaturethan BELOW LIMIT.

Figure 10.7 – Isotherms se ngs – ABOVE & BELOW.

The colors of marked areas can be set in Advanced menu. Default colors are red for Above mode, blue for Belowmode, green for Between mode and red and blue color for Above & Below mode.

The currently set isotherm limit is shown in the temperature legend. If the isotherm above limit is set higherthan the temperature maximum or the isotherm below limit is set lower than the temperature minimum, it isindicated by the red or blue signs in the temperature legend.


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Figure 10.8 – Isotherm se ngs – limits exceed temperature range.

10.4 Func ons

FUNCTIONS category allows user to capture images, record video, zoom camera that is currently in main camerawindow, switch between infrared and visible spectrum camera and also use measurement func ons such asmaximum and minimum detec on (including crosses in image) and set the center spot temperature detec on.

Figure 10.9 – Func ons se ngs.


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FUNCTIONS menu consists of following items:

CAPTURE - Captures set of images that were speci ed in ADVANCED menu

RECORD - Starts and stops recording of radiometric video

ZOOM - Applies zoom to camera in MAIN CAMERA WINDOW

CHANGE MODE - Switches camera in MAIN CAMERA WINDOW

CROSS MAX, CROSS MIN, CROSS CENTER - Displays max, min or center cross in infrared camera image

DISPLAY TEMP - Displays temperatures of the crosses

10.5 Pale e

PALETTE category includes set of eighteen color pale es that can be applied on the infrared image.

Figure 10.10 – Pale e se ngs.


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10.6 Advanced

ADVANCED category allows user to set advanced behavior of the applica on. It is divided into nine more cate-gories – MEASUREMENT, DISPLAY, SAVE IMAGES, ISOTHERMS, COMMUNICATION INTERFACE, MEMORY, SYSTEMand INFO.

Figure 10.11 – Advanced se ngs.

ADVANCED MENU consists of the following categories:

MEASUREMENT - Emissivity, Calibra on

DISPLAY - Temperature units, Language, Resolu on, Hold me, GPS info

SAVE IMAGES - Radiometric JPEG, Radiometric TIFF, Non-radiometric JPEG, Digital camera JPEG, Periodiccapture

ISOTHERMS - Pale e, Above, Below and Between isotherm color, Isotherm intensity

COMMUNICATION INTERFACE - Digital IO Port 1 – 4 behavior

MEMORY - Erase memory, Disconnect SD Card, Format SD Card, Copy Log les

SYSTEM - Current me and date, Erase memory, Default se ngs, Reboot

INFO


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10.6.1 Measurement

MEASUREMENT category contains se ngs of measurement parameter emissivity and you can start the shu ercalibra on manually here.

Figure 10.12 – Measurement menu.

MEASUREMENT menu consists of the following items:

EMISSIVITY - Emissivity of measured surface

Calibra on - Do the shu er calibra on manually


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10.6.2 Display

DISPLAY category contains se ngs of what should be displayed on the screen. It allows user to choose temper-ature units, choose which GPS informa on will be available in status bar, select pro ered display output anddi erent resolu ons and select the language.

The na ve resolu on of theWIRIS MINI is 1280 x 720 in case of HDMI and 720 x 480 in case of composite analogvideo output. The resolu on op on can be set to either detect the output automa cally or to force the HDMIoutput.

Figure 10.13 – Display menu.

Note: Do not unplug the power supply during the resolu on change.

DISPLAY MENU consists of following items:

UNITS - CELSIUS, FAHRENHEIT or KELVIN

LANGUAGES - ENGLISH, CZECH, FRENCH, GERMAN, SPANISH

RESOLUTION - AUTOMATIC, HDMI

HOLD TIME - Time for which the max and min temperature will be held

GPS INFO - POSITION, ALTITUDE, RELATIVE ALTITUDE, SATELLITES, SPEED


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10.6.3 Save Images

SAVE IMAGES category allows user to set which images will be saved, when CAPTURE func on is ac vated. Italso allows user to set periodic capturing. Also, the total me needed for saving selected images is shown.

Figure 10.14 – Save Images menu.

SAVE IMAGES menu consists of following items:

RADIOMETRIC RAW JPEG - Includes temperature data (Workswell CorePlayer compa ble)

RADIOMETRIC RAW TIFF - Includes temperature data (Pix4D, Agiso compa ble)

NON-RADIOMETRIC JPEG - Standard JPEG without temperature informa on

DIGITAL CAMERA - Standard JPEG from visible camera

PERIODIC CAPTURE - Captures selected images periodically with the interval set by user. Periodic capturingbegins when CAPTURE func on is ac vated and ends when CAPTURE func ons is ac vated again.


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10.6.4 Isotherms

ISOTHERMS category contains isotherm pale e se ngs, isotherm colors se ngs and also isotherm intensityse ngs.

Figure 10.15 – Isotherms menu.

ISOTHERM menu consists of the following items:

ISO PALETTE - GREY pale e when isotherms ac vated or NO CHANGE in pale e

ISO ABOVE - Color of above isotherm

ISO BELOW - Color of below isotherm

ISO BETWEEN - Color of between isotherm

ISO INTENSITY - Opacity of isotherms


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10.6.5 Communica on Interface

COMMUNICATION INTERFACE category allows user to set behavior of digital IO ports. For more informa onabout digital IO ports connec on please see the sec on 8 Digital IO Ports.

Figure 10.16 – Communica on Interface menu.

COMMUNICATION INTERFACE menu consists of the following items:

IO 1, IO 2 - Not available, xed to menu control

IO 3 – IO 4 - Behavior of each digital input can be set independently

S.Bus O set - Sets the o set for S.Bus RC control

• It will shi S.Bus IO inputs by selected number as described in table 8.1

• For example, S.Bus O set = 5 will make the S.Bus input IO 6 act as WIRIS IO 1

In the rst step, PWM, TRIGGER or OUTPUT mode needs to be selected. For more informa on about PWM,TRIGGER and OUTPUT mode please see the sec on 8 Digital IO Ports.


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For each of the digital IO ports 3-4, you can select one of the following func ons:

PWMmode:

• Change mode - switch thermal or visible cameras shown in the main and preview windows.

• Capture - capture selected images

• Record - start/stop recording video

• Zoom - zoom camera shown in the main window

• Pale e - change pale e of the radiometric image

• Isotherm ON/OFF - toggle isotherm ON or OFF

• Man Range ON/OFF - toggle manual range ON or OFF

• Range Max - set the manual range maximum limit

• Range Min - set the manual range minimum limit

• Isotherm Above - set the isotherm above limit

• Isotherm Below - set the isotherm below limit

• Hide Overlays - hide all crosses and signs shown in the main window

• Calibra on - do the thermal image calibra on

Triggermode:

• Capture - capture selected images

• Record - start/stop recording video

• Calibra on - do the thermal image calibra on

Outputmode:

• Capture Start - set output to +5V at the moment of capturing image for the me of 100ms

• Capture Finish - set output to +5V when all of the selected images are saved to the internal memoryof Flash Drive for the me of 100ms

• Calibra on - set output to +5V during the image calibra on


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10.6.6 Memory

MEMORY category allows user to erase memory, set internal memory as main storage an copy log les to ashdrive in case of facing any problems. Also there is the possibility to safely unplug the ash drive when no longerneeded.

Figure 10.17 – Memory menu.

MEMORY menu consists of the following items:

ERASE MEMORY - Delete selected folders with images and recordings

DISCONNECT SD CARD - Sets the internal memory as the main storage. (Available only when the externalFlash drive or SD card is connected)

FORMAT SD CARD - Formats the SD card

COPY LOGS - Select ON to copy log les when connec ng a ash drive

More about transferring data in chapter 12.


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10.6.7 System

SYSTEM category allows user to set the current me and date, set default se ngs, reboot system and set startsystem op on.

Figure 10.18 – System menu.

SYSTEM menu consists of the following items:

CURRENT TIME - Current me to be added to images and video

CURRENT DATE - Current date to be added to images and video

SET DEFAULT SETTINGS - Sets the system to factory default se ngs

REBOOT SYSTEM - Reboots whole system for the fresh start


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10.6.8 Info

INFO category displays informa on about system such as rmware version, serial number (needed for commu-nica on with Workswell), device temperature and informa on about Workswell s.r.o. company.

Figure 10.19 – Info menu.


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11. USB FLASH DRIVE MENU

11 USB ash drive menu


Once the USB ash drive is connected, the USB FLASH DRIVE MENU appears.

USB DRIVE MENU allows user to copy images and videos from internal memory to USB ash drive (supplied),update rmware of the system, format USB ash drive and use USB ash drive as main storage memory.

Figure 11.1 – USB ash drive menu.

USB FLASH DRIVE MENU contains following items:

COPY - Copies selected images and videos from internal storage to connected USB ash drive.

MOVE - Moves selected images and videos from internal storage to connected USB ash drive. Movedimages and videos are available no more on internal storage.

UPDATE - Updates rmware of the system if update le is available on the connected USB ash drive.

FORMAT - Formats USB ash drive. All data on the drive will be lost.

MEMORY - Choose connected ash drive as main memory for storing images and videos.Note: Due to slow data transfer speed of the USB 2.0 interface, lost of some frames in the radiometricvideo can occur.

CANCEL - Return back to the applica on.


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12. DATA TRANSFER

12 Data Transfer


Workswell WIRIS MINI system is equipped with internal storage for captured images and recorded video. It canbe replaced with microSD card forma ed to FAT32.

Warning: Do not insert the microSD card when system is running. The system may freeze. Insert it and unplugit when the WIRIS MINI is turned o .

In order to download the data from Workswell WIRIS MINI system, use either USB ash drive or extract themfrom microSD card.

USB ash drive can be connected to USB port of Workswell WIRIS MINI system. Once the USB ash drive isconnected, the USB FLASH DRIVE MENU appears.

Figure 12.1 – USB ash drive menu.

We highly recommend using the supplied USB ash drive that is already forma ed. In case of using other thansupplied USB ash drive, the user may be asked to format the drive. This can be done directly from USB FLASHDRIVE menu by using FORMAT menu. Once the USB ash drive is forma ed, the data can be transferred to it.

There are two ways of transferring the data to from the system internal storage to connected USB ash drive.

COPY - Copies selected images and videos from internal storage to connected USB ash drive. Files are notdeleted from internal storage.

MOVE - Moves selected images and videos from internal storage to connected USB ash drive. Movedimages and videos are no more available in internal storage.

Once the COPY or MOVE op on is selected, user is asked to choose which folders should be copied or moved.


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12. DATA TRANSFER

Folder is created on every start of Workswell WIRIS system.

Figure 12.2 – Folders to be copied.

The copy/move process starts when the user clicks COPY/MOVE SELECTED.

Warning: Do not unplug power supply or USB ash drive during copy/move process. The data lost may occur.


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13. FIRMWARE UPDATE

13 Firmware update


WorkswellWIRISMINI system is suppliedwith the latest rmware. As me goes on, newer rmware could appearin order to bring the user new func ons, improve the old ones or xing bugs. For this purpose, the system allowsthe user update the rmware using USB ash drive.

To receive rmware update please make sure to register your camera at h p://www.workswell.eu/register/.

The process of upda ng rmware consists of following steps:

1. Insert the USB ash drive to WIRIS MINI.

2. Choose Update from USB menu, the UPDATE KEY le will be copied to your USB ash drive.

3. Upload UPDATE KEY le to h p://www.workswell.eu/ rmware-update/.

4. Copy the generated update le to USB ash drive.

5. Insert the USB ash drive to WIRIS MINI and select Update from USB menu.

13.2 Update key copy

In order to copy update key to a USB ash drive, user has to select UPDATE op on in USB ash drive menu. Ifthere is no update le available, the update key is generated once the user con rms the UPDATE ac on.

Figure 13.1 – Update menu – copy update key.


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http://www.workswell.eu/register/

http://www.workswell.eu/firmware-update/

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13. FIRMWARE UPDATE

13.3 Update key upload

The user should upload the update key to the Workswell rmware update website within 24 hours. The updatele may not be generated if older update key is used.

Figure 13.2 – Update key upload – website form.


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13. FIRMWARE UPDATE

13.4 Firmware update process

If there is update le available on a USB ash drive, the user is o ered to update the rmware. Firmware updateprocess will start when the user con rms the UPDATE ac on and can take several minutes.

Figure 13.3 – Update menu – rmware update.

Warning: Do not turn o the system and do not unplug the power supply during the rmware update process.Otherwise the damage to the system may occur.


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14. WORKSWELL COREPLAYER

14 Workswell CorePlayer


TheWorkswellWIRISMINI system can capture radiometric images and record radiometric video compa ble withWorkswell CorePlayer (supplied withWorkswell WIRISMINI system). Workswell CorePlayer o ers the user manyfunc ons for edi ng and processing radiometric images and videos.

Workswell CorePlayer is available at h p://www.workswell.eu/CorePlayer

Figure 14.1 – Workswell CorePlayer.

Workswell CorePlayer allows the user to

Change measurement parameters (emissivity, …)

Change temperature range, colour pale e

Use mul ple isotherms

Use measurement func ons in mul ple ROIs (region of interest)

Export images

Export .avi video

Generate PDF reports

And much more…

To learn more, please refer to CorePlayer manual.


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http://www.workswell-thermal-camera.com/manual/CorePlayer-Manual.pdf

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15. ENVIRONMENT CONDITIONS

15 Environment Condi ons

15.1 Environment Condi ons

You should follow these storage and opera ng condi ons for proper func on of the Workswell WIRIS MINI sys-tem:

Opera on temperature range from -15◦C to +50◦C

Storage temperature range from -30◦C to +60◦C

Humidity 5-95%, noncondensing

Maximum irradiance 100W/cm2

If you use the product in con ict with these condi ons, damage to the Workswell WIRIS system can occur.


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16. INFRARED CAMERA BEHAVIOUR

16 Infrared camera behaviour

16.1 Infrared camera warm-up

Modern infrared cameras are based on a sensor (microbolometer array) that needs to be warmed-up to theworking temperature before it can be used. The sensor starts warming-up automa cally when the user turnsWorkswell WIRIS MINI system on. The infrared camera is usually ready in less than 5 minutes.

During the warm-up process the accuracy of the measured temperature data is lower and various defects canappear in the thermal image. Therefore, we recommend to let the infrared camera warm before using it.

16.2 Non-uniformity correc on

Infrared camera needs to be periodically calibrated in order to get reasonable measurement accuracy. This pro-cess is called Non-uniformity correc on (NUC) or shu er calibra on. The user can perform the calibra on withplacing the cap on the lens or manually from the menu.

Time from the last calibra on is shown in STATUS BAR. When the temperature of camera sensor is not stabilized(changes more than 2 degrees Celsius in the last minute), the me is displayed in red color font.

It is recommended to use shorter periods (2 – 5minutes) during camera warm-up process and longer periods (10– 30minutes) when the camera is alreadywarmed-up. Also do the calibra onwhen the image quality decreases,the temperature of camera changes or the temperature of environment changes.


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17. MAINTANANCE

17 Maintanance

17.1 Cleaning the WIRIS head and cables

Liquids: Use one of these liquids:Warm water

A weak detergent solu on

Equipment:A so cloth

Procedure:1. Soak the cloth in the liquid.

2. Twist the cloth to remove excess liquid.

3. Clean the part with the cloth.

17.2 Cleaning the infrared lens

Liquids: Use one of these liquids:A commercial lens cleaning liquid with more than 30% isopropyl alcohol.

96% ethyl alcohol (C2H5OH)

DEE (= ”ether” = diethylether, C4H10O)

50% acetone (= dimethylketone, (CH3)2CO)) + 50% ethyl alcohol (by volume). This liquid prevents dryingmarks on the lens.

Equipment:Co on wool

Procedure:1. Soak the co on wool in the liquid.

2. Twist the co on wool to remove excess liquid.

3. Clean the lens one me only and discard the co on wool.

Warning: Make sure that you read all applicable MSDS (Material Safety Data Sheets) and warning labels oncontainers before you use a liquid: the liquids can be dangerous.

Cau on:Be careful when you clean the infrared lens. The lens has a delicate an -re ec ve coa ng.

Do not clean the infrared lens too vigorously. This can damage an -re ec ve coa ng. Re-applying an -re ec ve coa ng is not possible and is required to change the lens.


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18. TROUBLESHOOT

18 Troubleshoot

18.1 Turning ON

When the power cable is plugged in, the LED should start pulsing with yellow color. If nothing happens, pleasecheck you power supply. A stable power supply is essen al for correct WIRIS MINI behavior.

18.2 Safe mode

When the camera internal rmware does not terminate regularly three mes in a row, theWIRISMINI boots intothe Safe mode. In this case, please contact the Workswell support center [email protected] and report theissue.

Figure 18.1 – Safe mode.

In the Safe mode, you can choose several op ons:

Reboot and con nue with standard applica on

• Choose this op on when rst observing the safe mode.

Copy log les to connected ash drive

• Choose this op on to copy log les for faster solving of the issue.

• Please, send these log les to Workswell support center with informa on about the issue.

Restore to Factory defaults


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18. TROUBLESHOOT

• Choose this op on to restore the system to its Factory defaults. All of the applied updates will beremoved.

• A stable power supply has to be maintained during the Factory Default!

18.3 Reset to factory default

You can reset the WIRIS MINI to its factory default state with the pin bu on. Press the pin bu on for more then5 seconds. The LED should start blink rapidly. Do not unplug the WIRIS MINI from power source during thisprocess!

Factory default can help in some situa ons. Typically if some se ngs or update caused the WIRIS MINI to stopdisplaying the image or other minor things like going back to previous working rmware version.

Factory default will not work if the LED is not emi ng light.

18.4 Remote control

When selec ng the TRIGGERmode for a digital input, make sure that the selected input is not connected to yourremote controller with PWM output. Otherwise, the TRIGGER input will not behave as expected.

18.5 System Update

Make sure that your WIRIS MINI version is up to date. You can nd informa on about the current version onh p://www.drone-thermal-camera.com/ rmware-update/


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Contacts

Sales DepartmentAdam Švestka, MSc., MBA

Mobile: +420 725 955 464E-mail: [email protected]

HeadquartersLibocka 653/51b

160 00, Prague6

Czech Republic

BranchesMeziricska 100

756 61, Roznov p. R.

Czech Republic

Company contact detailsMobile: +420 725 877 063E-mail: [email protected]

Web: www.drone-thermal-camera.com

Univerzitni 1

010 08, Zilina

Slovak Republic

www.drone-thermal-camera.com

Documents

WORKSWELL WIRIS mini · 6.INTRODUCTION 6 Introducon WorkswellWIRISMINIisthethermalimagingsystemforunmannedaerialvehicles(UAVs,drones).Itisalightweight …