Company overview 130405

Copyright© 2013 Adaptive Wireless Solutions Ltd

Adaptive Wireless Solutions Ltd

Company, Products and SolutionsOverview


Adaptive Wireless Solutions• Specialists in monitoring and control solutions using wireless mesh sensor

networks for over 8 years• Offer systems integration and equipment supply for numerous wireless and

wired technologies driven by customer requirements• Distributor for ECOMM, Spinwave Systems and Wireless Sensors in UK

and Europe • Reseller for Netbiter in UK• Can help you integrate and manage your data gathering and monitoring

activities – Complete solution design, supply and support– Wireless technology consulting and advice– Programme and project management– Technical and wireless architecture design – Equipment and software supply from multiple vendors– Integration with other systems– Installation and commissioning– Maintenance and Support


Customers and Projects

• We have had enquiries and projects in BMS extension, energy management, and related monitoring and control applications in a wide cross-section of industries from commercial offices, universities and colleges, hotels and apartment complexes to warehousing, recycling plants, food companies and national utilities.

• Customers in UK, Ireland, Italy, Netherlands, Belgium, Hungary, Israel, Saudi Arabia

BOMBARDIER

http://www.philips.com/global/index.html

http://en.wikipedia.org/wiki/File:Saudi_Aramco.svg

http://en.wikipedia.org/wiki/File:ABB_logo.svg

http://honeywell.com/Pages/Home.aspx

http://www.johnsoncontrols.co.uk/publish/gb/en.html

http://www.irf.com/

http://www.evolveenergy.com/index.html

http://www.countrystylegroup.co.uk/

http://www.central-systems.co.uk/

http://www.marshsystems.co.uk/


Business Advantages of Mesh Radio

Economic and operational advantages vs. wired sensors• Up to 90% lower installed costs

– Lower cost of required equipment and supplies– Much quicker installation = less on-site time and less disruption

• Monitor and control in:– harsh environments (lots of metal and interference)– “wire unfriendly” situations where wires are difficult or undesirable

• Low cost and speedy retrofit to existing buildings, equipment and processes• Monitors mobile or rotating equipment• Easy optimisation of sensor position in process for a better result• Cost-effective diagnostics in uncertain or temporary situations • Multiple sensor types with standard wireless nodes on a single network• Remote, ‘PC-less’, monitoring from anywhere on the internet


Wireless Network Types

Direct Connection– Wire replacement– Point to point, highly specific– Engineered to suit application

Star– One central routing and control point– Single-hop - point to multi-point– All data flows through central point

Mesh– Multiple data paths– Multi-hop– Can operate as star or hybrid star/mesh– Self configuring, self healing– Highly flexible, highly reliable

Gateway

Mesh node

Sensing

node

Older, less flexible, less reliable technologies

Newer, more flexible, more reliable technology


Operational Advantages of Mesh

• Multiple Pathways– Stronger connectivity – Self-Healing, Self-Managing

• Transmit Around Equipment– More robust– More flexible

• Extend Network Range– More robust– More capable

Primary

Secondary

Out of Range

Primary


Core Mesh Wireless Product RangesSystem Monitor/

InputsControl/ Outputs

Key Strengths

ECOMM Yes Yes Large scale networks, multi-channel I/O, direct equipment/meter integration

Spinwave Yes No Pulse replication, long range, multiple BMS protocols

Wireless Sensors

Yes No External TRH sensors, RTD’s, device packaging



ECOMM direct integration with Modbus meters

• The following electricity meter types are supported by direct integration via Modbus RS485 connection to the ECOMM WC21 radio unit– Schneider E 5600– Schneider ION 8600– Schneider PM 710/750– Schneider PM 9C– Schneider ION 6200– Carlo Gavazzi EM24– Veris H 8036– EIG Shark 100

• Other meter types can be added as needed




Solution Architecture – Netbiter remote monitoring

Typical Sensors and I/O devicesBattery and/or line poweredTemperature sensorTemperature and humidityOccupancy, door contactLightPulse countingDry contact inputsUp to 32 inputs per radio: contact, NTC, 0-5V, 0-20mARelay and analogue outputsMulti-stage thermostat controllerModbus RTU bridge

Wireless mesh Gateway

Netbiter is Modbus TCP proxy

Wireless range to cover large sites, highly reliable digital mesh radio, not affected by interference. Scales from 1 to 100’s of points. Netbiter transfers data off-site to Netbiter Argos remote monitoring portal. Web API available to integrate data to other applications

Remote off-site monitoring using Netbiter Argos

http://docs.netbiter.net/files/2011/11/Netbiter_EC150.jpg


Although we specialise in mesh radio we also use GSM/GPRS and Narrowband radio systems when needed to meet customer requirements


Energy Management Solution Overview (1)


Energy Management Solution Overview (2)


Example ProjectsIntegration type Sector DescriptionBACNet-IP/ BMS Building

management

Wireless temperature monitoring in large office building. Data integration to existing BMS using BACNet-IP.

BMS Energy Water meter pulse count transfer 600m line of sight. Pulse replication output

BMS Energy Wireless electricity submetering from existing pulse output meters into BMS via BACNet-IP. 150 metres across roadway with one unit 50 metres further away.

Modbus TCP/ PLC and Citect

Data Centre Data centre wireless temperature and humidity monitoring application. 56 battery-powered sensors. Data fed into Citect monitoring and control system used to control set-point for 22 CRAC units. Data also used for SLA KPI reporting

Modbus TCP/ BMS Energy Wireless temperature monitoring and window damper, heating valve and air recirculation damper controls. Historic university building. Demonstration project for Irish government.

BMS Energy Wireless boundary gas meters pulse transfer to BMS outstations on hospital site

Modbus TCP / OnCall Energy Temperature, Humidity, differential pressure, utility consumption, water pressure monitoring in energy experimental facility for domestic house energy efficiency analysis.


Application example – Westfield Shopping Mall BMS integration for temperature control

55,000 Sq Metres on two floors with Atrium

49 Air handling units on

roof

1 Wireless network

18 Mesh repeaters

30 Sensing nodes

Ambient Temperature input to HVAC zone controls via Modbus

TCP

Installed in 2 days to resolve critical

operating requirement

£6,100 equipment cost


Application example – Large Data Centre Monitoring Solution

Primary Server

Secondary Server

Remote Disaster Recovery Centre

Remote Business

Continuity Centre

Basement

Floor 1

Floor 2

Floor 3

Console

Control Room Viewers

OtherViewers

Secondary Console

CommonEthernet Network

Main Mission Critical Data Centre

7,500 Sq Metres

4 Floors

Phase 1 - 20086 Wireless Sub-

networks22 Mesh repeaters178 Sensing nodes

Ambient TRH

Phase 2 - 2009100 additional TRH

sensors on two floors

4 more wireless sub-networks

Phase 3 - 2010 Being planned now

Electrical PowerChilled water


BMS Integration

• We have supplied systems to clients providing integration to existing BMS’ and software systems via:– Modbus TCP and RTU– BACnet IP– Direct analogue and digital connection– ODBC, OPC and SQL connection

• BMS’ that have been integrated with our systems include:– Trend– Siemens– Schneider– Andover Controls/TAC– Honeywell– Priva


Network Performance and Reliability


Industrial Wireless Sensor NetworksIndustrial WSN OEM Adoption Inhibitors

92%

67%

58%

53%

43%

20%

10%

0% 20% 40% 60% 80% 100%

Reliability

Standards

Ease of Use

Battery

Dev Cycles

Education

Node Size

Source: ON World, Inc.


Building Automation Wireless Sensor NetworksCommercial Building WSN Adoption Inhibitors

70%

63%

55%

53%

52%

44%

23%

4%

0% 20% 40% 60% 80%

Reliability

Standards

Battery

Education

Dev Cycles

Ease of Use

Node Size

Guest Room

Source: ON World, Inc.


Wireless Sensor Network ReliabilityRF Interference

• Common interference sources:– Multipath interference

• Occurs when the RF signal interferes with itself• Reflections off surfaces of all types• Can interfere with original signal and even cancel it out

– Interference with other transmitters• ISM band 2.4 Ghz wireless is increasingly common• Signals can be affected by other sources• Data slows down (more retries) or even stops• A good way to avoid it is to ‘frequency-hop’

• Examples of other transmitters in the 2.4 GHz band can be WiFi nodes, microwaves, cordless phones, Bluetooth devices, RFID, and other wireless sensor networks.

• How can it be avoided?

T R


Wireless Sensor Network ReliabilityInterference Avoidance

• Typical methods:– Direct Sequence Spread Spectrum (DSSS) modulation

• Part of the IEEE802.15.4 radio standard• Spreads the signal over a wider bandwidth• Reduces the chance of blocking the whole signal

– Frequency-Hopping Spread Spectrum (FHSS) modulation• NOT part of the IEEE802.15.4 radio standard• Uses a range of base frequencies• Transmitter and receiver periodically hop to a new frequency• Acts more like a narrowband radio for very short intervals• Very unlikely that all channels in the band are interfered

– Dynamic channel hopping• Not a modulation technique• Enhances simple FHSS modulation by dynamically detecting

persistently busy channels and avoiding them• The best mesh radio systems use all three techniques

TIME

FRE

QU

EN

CY

frequency

Sig

nal s

treng

th

2.40GHz 2.48GHz

NOISE FLOOR

INTERFERENCE


Wireless Sensor Network ProtocolsHow do they affect performance?

• Two main options:– Carrier Sense Multiple Access

• Collision-based protocol• Uses collision-avoidance (CA) or collision detection (CD)• Most WSN protocols use CA to avoid network overhead• Network communication is not time-synchronised• Pseudo-random ‘Back-off and re-try’ mechanisms are used• Collisions within the network escalate as networks get larger• ZigBee is based on this CSMA-CA approach

– Time Synchronised Protocols• These minimise or avoid collisions and transmission re-tries• Time synchronisation allows the use of channel-hopping• TDMA (Time Division Multiple Access) is an example• Also called ‘slotted’ protocols because each device has a ‘time slot’

• The benefits of synchronised traffic and channel-hopping are:– Better performance (fewer collisions/retries)– Increased battery life (fewer retries)– Better interference avoidance (channel-hopping)

• The most sophisticated systems use adaptive dynamic channel-hopping


Protocol Standards

• Two main standards initiatives• The ZigBee Alliance promulgated a standard in Dec 2004 which has

encountered limitations in performance some important use cases, notably industrial, regarding useful range and scalability.– Many large companies involved with the Alliance– Adoption by OEM’s in suitable markets– ZigBee Pro modules now becoming available. Improved performance

but many variants.– Still not in wide use

IEE 802.15.4

PHY Layer

MAC LayerMAC Layer

Data Link Layer

Network Layer

Proprietary Application

Application Interface

Application• 802.15.4-based market offerings are

differentiated by proprietary protocol stacks with different design goals

• Network layers of the protocol are not standardised


• ISA SP100 Standards Committee is focused on industrial process wireless automation.

• April 2006 - ISA SP100 committee formed two working groups to further the development of protocol standards for industrial use

• July 2006 - Issued a call for proposals to encourage wide participation– SP100.11 Wireless for Industrial Process Measurement and Control– SP100.14 Wireless Network Optimized for Industrial Monitoring

• In due course merged these groups into 11a working group focused on:– Wireless HART– SP100 11a industrial standard(s)

• Wireless HART standard is released now. Many large companies (Emerson, Honeywell, ABB, etc) marketing Wireless HART adapters for existing field instruments.

• SP100 11a still working on draft standard but focused on use in process industries

Protocol Standards


Protocol Standards Future?

• One protocol certainly does not fit all requirements as there are many trade-offs in design

• Probably room for several variants on a base standard• It is important that hardware remains 802.15.4 compliant• Vendors need to offer choice and preferably an upgrade path• New standards are taking advantage of developments in electronic

devices and radio chipsets to offer features and performance not previously possible.

• The ZigBee ‘standard’ does not currently guarantee interoperability between equipment from different vendors and is known to have performance limitations in real-world industrial and commercial applications

• ‘Standards’ do not mean that proprietary protocols will become obsolete or unnecessary.


Contact Details

Adaptive Wireless Solutions Ltd91 High StreetPrestwoodGreat MissendenHP16 9ERTel:+44 (0) 1494 865992 www.adaptive-wireless.co.uk

Nick Baker Walter Woods Director Business ManagerMobile: 07968 352875 07581 689817 [email protected] [email protected]: adaptivewireless

http://www.adaptive-wireless.co.uk/

mailto:[email protected]

mailto:[email protected]

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Company overview 130405