Low-voltage power line signal carrier gas meter is it check meter system to have factory and Hangzhou swan Electronics Co., Ltd. research and develop and high department that produce together by Zhejiang Ninghai sapphire gas meter factory to concentrate on Serial products of Hi-Tech.
1 £® Systematic characteristic
¡ò Utilize existing power line resources as the communication carrier, do not need to lay the data communication line repeatedly, so has reduced the work load of maintenance and expenses in the future.
¡ò It is flexible for system to dispose, applicable many kinds of gas meter check meter and control automatically.
¡ò Group's network way is flexible, support many kinds of transmission , mix group's network, offer the excellent choice to user.
¡ò Realize two-way communication, can both check meter and control, reach and control in real time.
¡ò Systems soft ware and hardware are developed independently, there are independent intellectual property rights.
2 £® The system making up
¡ò Mainly by computer administrative center, person who hold, concentrator, collector, pulse processor, long-distance transfers gas meter, etc. make up partly far system.
3 £® Spread the kind and characteristic of the gas meter far
¡ò Send the news gas meter in pulse--Install additional and send the gas meter of a sensor of news at the common gas meter.
¡ò Gas meter of long-range data--On the basis of sending the news gas meter, install the data collector of the microcomputer additional, measure electrons directly, and through 485 communication interface, realize two-way data communication.
¡ò Gas meter of long-range numerical control--On the basis of gas meter of long-range data, install the executive body additional, is realized two-way communication and control to the gas meter through 485 communication lines by the computer.
4 £® A system
¡ò The computer center can carry on the communication to the concentrator through the urban telephone service (modem );
¡ò The concentrator passes the signal carrier of low-voltage power line and collector communication;
¡ò The collector carries on the communication through 485 communication lines and pulse processors;
¡ò The pulse processor carries on data processing directly in sending the news gas meter.
¡ò This system as concentrating on checking meter alone of system: A concentrator can be hung 64 collectors; A collector can be hung 8 pulse processors; One pulse processor can hang 8 take place news gas meter.
5 £® B system
¡ò The computer center can carry on the communication to the concentrator through the urban telephone service (modem );
¡ò The concentrator passes the signal carrier of low-voltage power line and collector communication;
¡ò Collector carry on the communication through 485 communication line and data communication gas meter or with executive body numerical control gas meter;
¡ò This system not only can concentrate on checking meter, can also be to the direct and two-way communication of the gas meter, and carry on the control of the switch valve to the gas meter. A collector can be taken to 32 gas meters of numerical control.
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