Gprs water remote automatic meter reading system

Xiamen Caimore Communication Technology Co.,Ltd2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)[email protected] skype:caimoremichelle

Tel:+86 592 5901215 Web: www.caimore.com/emain.asp

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GPRS Water remote automatic meter

reading system

Solution

1 . Introduction

As the departments of water supply for the reconstruction of "one household onetable", as well as the requirement of automation, a remote automatic meter readingsystem has become water automation management and an indispensable part ofintelligent control.In order to adapt to the water supply company user water meterand the need of modern intelligent building water management, convenient watermeter users pay the water fee, the xiamen CAIMORE technology communicationspecially designed for water supply companies, property management companiesbased on GPRS wireless network tap water remote automatic meter readingsystem.The system will be computer technology, mobile data communicationstechnology, network technology, automatic control technology to dissolve into anorganic whole, can automatically complete water meter network and remote dataacquisition, records, real-time monitoring, statistical analysis, print, and for, watercontrol management work.

2 . Components

Water remote automatic meter reading system consists of monitoring center,communication networks and wireless networks meter (digital water meter +CM3150P DTU) components. It comprises a central station monitoring center,computer and system software, monitors, printers and other equipment, the centralstation computer communication with the use of a wireless network meter ChinaMobile's GPRS network. The system is suitable for the water company vast distances,dispersed separate water meter users, system network block diagram shown inFigure

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3 . Function

3.1, the automatic detection function: the system for water meter (flow) and otherparameters (pressure) data collection, monitoring, recording, and data analysis andprocessing, the formation of a variety of graphs and reports, remote unmannedautomatic meter reading.

3.2, dynamic display function: timed or random dynamic display network automaticmeter reading system drawing surface water per meter and the entire systemincluding the total amount of water meter.

3.3. Printing: You can print each meter monthly, annual reports and monthly waterbills, the total water consumption can print day, month, annual reports and monthlycharge for water, annual reports.

3.4, data management functions: establish historical database to store raw data forstatistical analysis. Analysis of calculation of water consumption and other datacollected cumulative, average, maximum, minimum and so on, the system databasefor the expansion and maintenance of all sizes to meet the water meter reading andmaintenance department data use.

3.5, mergers, web browsing functions: The system can be connected to the watersupply company's servers, local area network access through the company's existingwater supply business charge computer management system, to achieve informationsharing.




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3.6, automatic bank payment: through the monitoring center management systemand bank charges mount, billing flexibility.

3.7, the case can be based on user pay water supply or water control, IC card havinga support function.

4 . Main equipment

4.1, the central station machine: instructions for sending the monitoring centercomputer and receive wireless network meter information, and information throughthe RS-232 / RG45 communication interface into the computer.

4.2, the system software:System development of professional software, which combines software with the

latest international fashion trends, can run on Windows98, Windows2000,WindowsXP, Liunx other mainstream operating systems. System software releasemachine instructions by the central station, monitoring the implementation of thesystem, is responsible for configuration and network management of the collectionsite, while the input data into the database, you can issue commands to achieveparameter setting, data monitoring, statistical analysis and report printing andsupply , water control and other treatment.

4.3, CM 3130P GPRS DTU Technical parameters:CM 3150P GPRS DTU using high-performance industrial embedded ARM9

processor, real-time operating system software support platform, large memory,built-in proprietary TCP / IP protocol stack. To provide users with high-speed, reliable,always-on data terminals, multiple protocol conversion of a virtual private network.For user-network flow control products support voice, messaging, data and on-linetrigger automatic disconnection timeout function. Also supports dual data centerbackup, and synchronize multiple data centers to receive data, and other functions.Cellular1, supports EGSM900 / GSM1800 wireless network2, GPRS multi-slot class 103, coding schemes: CS1 ~ CS44, in line with the technical specifications SMG31bis5, Compliant to GSM phase 2/2 +Support data, voice, SMS and faxHardware System7, CPU: Industrial ARM9 CPU, 200MPS, 16K Dcache, 16K Icache (the industry's

most advanced CPU)8, FLASH: 8MB (expandable to 32MB) (the industry's largest memory capacity)9, SDRAM: 64MB (expandable to 256MB)10. Interface:




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An RS232 serial port. Serial rate 110 ~ 230400bits / sIndicator: Power Comm OnlineAntenna Interface: standard SMA female antenna interfaces, the characteristic

impedance of 50 ohms.SIM card interface: 3V / 5V standard user card interface putt.Power Interface: standard 3-pin power jack.Voice interface: standard headphone microphone interface.11, power supply:External power supply: DC 9V 500mAWide voltage power supply: DC 5-35VCommunications Current: 350mAStandby Current: 35mA12, industrial wireless moduleGRPS module: Simens MC39i13, sizeDimensions: 92.7x61.3x23 mm (not including antenna and fixed parts)14, other parameters:Operating ambient temperature -25 ~ + 65ºCStorage temperature -40 ~ + 85ºC95% relative humidity (non-condensing)

Software features

1. Intelligent anti dropped support of online testing, online maintenance ofautomatic redial dropped calls, to ensure that equipment is always online.2. Support RSA, RC4 encryption algorithm3. Support virtual duty VWM (Virtual Man Watch) function to ensure stable and

reliable system4. Support for virtual private network data (APN)5. Transparent data transmission and protocol conversion, support multiple

operating modes6. To support the data center dynamic domain name and IP address access7. supports dual data center backup8. Support multiple data centers9. Supports master and slave modes10. Support SMS, voice, data and other wake-up mode and network connection

timeout.11. Support SMS backup and alarms.12. multiple hardware and software watchdog13. The packet transmission status reports.14. The standard AT command interface15. can be used as an ordinary dial-up MODEM




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16. Support telnet function.17. Support remote configuration, remote control18. Software upgrades through the serial port19. supports LINUX and WINDOWS operating systems

Network Meter

Specifications and ordinary water the same accuracy of national standards formeasurement level. The meter combines the Xiamen Caimore communication CM3150P GPRS DTU, with measurement accuracy (telemetry display readout of waterand water itself exactly the same value), stable and reliable, low power consumption,no missing data features, to solve the remote digital measurement error, fear poweroutages, power consumption, shortcomings fear of interference. Network watermeter can be used directly 220V mains or DC power supply. Wireless networkstations without reprovision meter machine, which has similar performance stationmachine by CM 3150P GPRS DTU and the central station machine data directly usingChina Mobile wireless network.

5, a computer (PC), LCD monitor or projector, printers, uninterruptible powersupplies, surge arresters and other equipment purchased general or specific products,according to the meter reading system and user needs and configuration.

Fifth, the system featuresThe system has the following characteristics:1, the system has all the advantages of GPRS, namely:1.1 Forever Online: as long as the activation of GPRS, will always stay on the line,

there is no dropped calls; similar to a radioLine network.1.2 high-speed transmission: Because GPRS take the advanced packet switching,

data transmission and the maximum theoretical value of up to 171.2kb / s. Therefore,the system transmits data on a removable information superhighway.1.3 by the amount of fees: GPRS to receive and send data to the number of

charges in accordance with the present system, when there is no transfer of datatraffic, even online, without charge. Therefore, it is a use-oriented, scientific andreasonable billing.2, automatic detection meter reading function of the system allows the water

company (or residential property management department) timely and accuratelygrasp the situation of water users and meter charge for water, so water managementand service quality has leapt to a new level, effectively promoted the water company(or residential property sector) to improve the modern management level.3, the system can solve the problem of real-time water management, real-time

measurement and remote control for remote automatic metering of water supply




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companies, water sharing billing, water management and water loss analysis ofreal-time remote monitoring system of modern water management provides areliable means.4, remote meter reading and automatic meter reading can reduce the number of

employees and related expenses, reduce labor intensity and improve work efficiencymeter; the measurement accuracy of the system will prevent the leakage of artificialnegligent copy, copy error, estimate copy ; real-time monitoring of the system canreduce the leaking pipe rupture, water users and other water loss caused by illegal;the application of the system will effectively improve water recovery and reduceoperating costs of the water supply network.5, large capacity non-volatile memory, can store large amounts of water meter

data, power data is stored for 10 years; password protected, unauthorized users cannot operate.6 . the system significant economic1, lower project costBecause of the city's tap water supply coverage reached more than 95% in general,

thousands of families of both water dispersion and away from the water companies,water companies over the years applied communication radio telemetry systemstypically use radio. Such as the use of this type of communication, monitoring andcontrol center of the water companies are required to configure the radio, dedicatedpower supply and high-gain antenna tower in the urban water users throughout themeasuring point addition to configuring the radio and dedicated power supply, theneed to configure the high-gain directional antenna. The communication systemusing China Mobile's GPRS network, the Control Center Water Division simplyconfigure built-in antenna central station machine, water meter measuring point youneed to configure a wireless network or station meter machine. This type of wirelessnetwork meter and test station machine, each occupies only a mobile phone number,the reliability of its communication with the mobile phone. Therefore, the projectcost of the system than the system of low-cost application stations at least 10-20million or more (the more the greater the number of measuring points difference).2, low running costs2.1 system uses China Mobile's GPRS communication network without the use of

radio, no antenna or directional antenna tower erection and other ancillaryequipment, wireless network and station meter machine is basicallymaintenance-free operation, no maintenance with professional and technicalpersonnel so low maintenance costs. The use of radio communication for anapplication to the radio channel resources management, professional and technicalpersonnel to be equipped with maintenance, so maintenance costs, staff wages andtransport fares, plus fees, electricity and channels occupied, its overall operatingcosts expenses less than a month 3,000.2.2 may use its communications network signed an agreement with China Mobile

Communications Corporation, according to the amount of the charge transfer. GPRSmethod of accounting standards: 0.01 yuan / 1kb, a minimum charge of 20 yuan per




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month. Each measuring point transmission capacity to 2kb / second count, if 1 hourof data transmission, then a month of calls = 2kb × 24 × 31 × 0.01 元 /1kb=14.88yuan; the minimum charge is 20 yuan. Currently, communications and some remoteautomatic meter-reading system using China Telecom's telephone line transmission,if transmission data per hour, then each measuring point 1 month of calls = 24 × 31 ×0.20 yuan = 148.80 yuan; therefore, wired telephone lines for transmission ofcommunications Billing and the system uses the GPRS compared to 148.80 ÷ 20 =7.44 times.

Conclusions

In summary, the application of GPRS tap remote automatic meter reading systemhas significant social and economic benefits, which advanced, practical, scalability,security, reliability, making her will in the water industry more widely to promote theapplication for the development of the water industry to make greater contribution.


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Gprs water remote automatic meter reading system