CN203276553U - Low-voltage long-distance centralized meter reading system based on double-wire communication - Google Patents
Low-voltage long-distance centralized meter reading system based on double-wire communication Download PDFInfo
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- CN203276553U CN203276553U CN 201320365777 CN201320365777U CN203276553U CN 203276553 U CN203276553 U CN 203276553U CN 201320365777 CN201320365777 CN 201320365777 CN 201320365777 U CN201320365777 U CN 201320365777U CN 203276553 U CN203276553 U CN 203276553U
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Abstract
The utility model discloses a low-voltage long-distance centralized meter reading system based on double-wire communication. The low-voltage long-distance centralized meter reading system comprises a plurality of acquisition terminals, wherein the acquisition terminals comprise a plurality of user electric meters and an acquisition device for acquiring data of the electric meters; the acquisition device is connected with the plurality of user electric meters; the low-voltage long-distance centralized meter reading system further comprises acquisition subsystems connected with the plurality of acquisition terminals; the acquisition device is connected and communicated with the acquisition subsystems through a parallel RS485 bus and a power carrier wire. According to the low-voltage long-distance centralized meter reading system disclosed by the utility model, the acquisition terminals adopt two communication manners including the parallel RS485 bus and the power carrier wire to carry out data transmission with the acquisition subsystems. An RS485 communication manner has the characteristic that the data quality is good; a twisted-pair design has a good anti-interference capability and has a longer-distance communication capability, so that the system is switched into a communication mode of power line carrier to ensure the normal operation of the system; the safety and the stability of the system are greatly improved.
Description
Technical field
The utility model relates to a kind of long-distance meter-reading system, particularly a kind of low-voltage remote automatic meter reading system based on dual-wire communications.
Background technology
the low-voltage remote automatic meter reading system has been used the long time, present system is mainly that the electronic watch in user terminal is taked concentrated gas meter box is done data acquisition, after concentrating, power distribution room send background monitoring system collection by the cluster wireless data transmission, obtain certain effect, but find more problem in implementation process, trunking communication is subjected to the atmospheric radio wave electrical interference serious, the one, co-channel interference, the 2nd, indivedual entity and individual arbitrarily use wireless frequency, the 3rd, message transmission rate is very slow, this scheme only is suitable for the place, indivedual rural areas of air interference, being not suitable for the city uses.Data often occur and interrupt, the shortcoming such as data acquisition unit overvoltage damage and follow-up maintenance amount are large, operational effect is not satisfactory, must be optimized processing to system, to reach desirable actual use target.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide data transmission stable, a kind of low-voltage remote automatic meter reading system based on dual-wire communications that security performance is high.
The technical scheme that the invention for solving the technical problem adopts is:
A kind of low-voltage remote automatic meter reading system based on dual-wire communications, comprise a plurality of acquisition terminals, described acquisition terminal comprises a plurality of electric supply meters and a collector that is used for gathering ammeter data, described collector is connected with described a plurality of electric supply meters, also comprise the acquisition subsystem that is connected with a plurality of acquisition terminals, described acquisition subsystem is connected with control center by communication network, also comprise the Switching Power Supply assembly that is connected with acquisition subsystem, described collector is connected communication by parallel RS485 bus with acquisition subsystem with the power carrier line.
Be different from existing wireless cluster communication drainage pattern, the utility model acquisition terminal adopts parallel RS485 bus and two kinds of communication modes of power line carrier and acquisition subsystem to carry out data transmission.The RS485 communication mode has the good characteristics of the quality of data, and the design of its twisted-pair feeder has good antijamming capability, and possesses the communication capacity of longer distance, therefore as first-selected main communication mode.In case the RS485 bus communication lost efficacy, system switches to the communication pattern of power line carrier, to guarantee the normal operation of system, has improved widely Security of the system and stability.
Further, described acquisition subsystem comprises for the data acquisition transmission unit of controlling the acquisition subsystem communication operations, be used for carrying out the data external interface of external data communication and the data transmission unit that is connected with communication network, described collector is connected with the data acquisition transmission unit with the power carrier line by the RS485 bus, and described Switching Power Supply assembly, data external interface and data transmission unit are connected with the data acquisition transmission unit.
Further, described communication network is the wherein a kind of of GSM network, cdma network, 3G network, internet.
Preferably, described communication network adopts mobile communications network, control center communicates by mobile network and acquisition subsystem, can remove large-scale flood tide work from, when control center sends instruction, after the data acquisition transmission unit receives instruction by data transmission unit, can collect real-time user power utilization data to collector at once, and data are turned back to control center, managerial personnel can learn accurate information, and make correct decision-making.
Further, described control center is connected with communication network by router.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and example.
Fig. 1 is structured flowchart of the present utility model.
Embodiment
With reference to Fig. 1, a kind of low-voltage remote automatic meter reading system based on dual-wire communications of the present utility model, comprise a plurality of acquisition terminals 1, described acquisition terminal 1 comprises a plurality of electric supply meters 11 and a collector 12 that is used for gathering ammeter data, described collector 12 is connected with described a plurality of electric supply meters 11, also comprise the acquisition subsystem 2 that is connected with a plurality of acquisition terminals 1, described acquisition subsystem 2 is connected with control center 4 by communication network 3, and wherein control center 4 is connected with communication network 3 by router 8.Also comprise the Switching Power Supply assembly 5 that is connected with acquisition subsystem 2, described collector 12 is connected with the power carrier line by parallel RS485 bus 6 and is connected communication with acquisition subsystem 2.Be different from existing wireless cluster communication drainage pattern, the utility model acquisition terminal 1 adopts parallel RS485 bus 6 and two kinds of communication modes of power carrier line and acquisition subsystem 2 to carry out data transmission.The RS485 communication mode has the good characteristics of the quality of data, and the design of its twisted-pair feeder has good antijamming capability, and possesses the communication capacity of longer distance, therefore as first-selected main communication mode.In case RS485 bus 6 communication failures, system switches to the communication pattern of power line carrier, to guarantee the normal operation of system, has improved widely Security of the system and stability.
Further, described acquisition subsystem 2 comprises for the data acquisition transmission unit 21 of controlling acquisition subsystem 2 communication operations, be used for carrying out the data external interface 22 of external data communication and the data transmission unit 23 that is connected with communication network 3, described collector 12 is connected with the power carrier line by RS485 bus 6 and is connected with data acquisition transmission unit 21, and described Switching Power Supply assembly 5, data external interface 22 are connected with data transmission unit and are connected with data acquisition transmission unit 21.Wherein above-mentioned communication network 3 is the wherein a kind of of GSM network, cdma network, 3G network, internet.
Preferably, described communication network 3 adopts mobile communications network, control center 4 communicates by mobile network and acquisition subsystem 2, can remove large-scale flood tide work from, when control center 4 sends instruction, after data acquisition transmission unit 21 receives instruction by data acquisition transmission unit 21, can collect real-time user power utilization data to collector 12 at once, and data are turned back to control center 4, managerial personnel can learn accurate information, and make correct decision-making.
The above is preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (4)
1. low-voltage remote automatic meter reading system based on dual-wire communications, it is characterized in that: comprise a plurality of acquisition terminals (1), described acquisition terminal (1) comprises a plurality of electric supply meters (11) and a collector (12) that is used for gathering ammeter data, described collector (12) is connected with described a plurality of electric supply meters (11), also comprise the acquisition subsystem (2) that is connected with a plurality of acquisition terminals (1), described acquisition subsystem (2) is connected with control center (4) by communication network (3), also comprise the Switching Power Supply assembly (5) that is connected with acquisition subsystem (2), described collector (12) is connected 7 by parallel RS485 bus (6) with the power carrier line) be connected communication with acquisition subsystem (2).
2. a kind of low-voltage remote automatic meter reading system based on dual-wire communications according to claim 1, it is characterized in that: described acquisition subsystem (2) comprises for the data acquisition transmission unit (21) of controlling acquisition subsystem (2) communication operations, be used for carrying out the data external interface (22) of external data communication and the data transmission unit (23) that is connected with communication network (3), described collector (12) is connected 7 by RS485 bus (6) with the power carrier line) be connected with data acquisition transmission unit (21), described Switching Power Supply assembly (5), data external interface (22) is connected 23 with data transmission unit) be connected with data acquisition transmission unit (21).
3. a kind of low-voltage remote automatic meter reading system based on dual-wire communications according to claim 1 is characterized in that: described communication network (3) is wherein a kind of for GSM network, cdma network, 3G network, internet.
4. a kind of low-voltage remote automatic meter reading system based on dual-wire communications according to claim 1 is characterized in that: described control center (4) is connected with communication network (3) by router (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320365777 CN203276553U (en) | 2013-06-24 | 2013-06-24 | Low-voltage long-distance centralized meter reading system based on double-wire communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320365777 CN203276553U (en) | 2013-06-24 | 2013-06-24 | Low-voltage long-distance centralized meter reading system based on double-wire communication |
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| CN203276553U true CN203276553U (en) | 2013-11-06 |
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| CN 201320365777 Expired - Fee Related CN203276553U (en) | 2013-06-24 | 2013-06-24 | Low-voltage long-distance centralized meter reading system based on double-wire communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406901A (en) * | 2015-12-11 | 2016-03-16 | 国网北京市电力公司 | Information acquisition system for electric power system |
| CN105929739A (en) * | 2016-05-23 | 2016-09-07 | 大成（济南）路桥科技有限公司 | Two-bus electromagnetic valve control system and control method |
| CN108877187A (en) * | 2017-12-29 | 2018-11-23 | 国网山东省电力公司嘉祥县供电公司 | A kind of intelligent electric energy meter metrical information acquisition method and system |
-
2013
- 2013-06-24 CN CN 201320365777 patent/CN203276553U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406901A (en) * | 2015-12-11 | 2016-03-16 | 国网北京市电力公司 | Information acquisition system for electric power system |
| CN105406901B (en) * | 2015-12-11 | 2018-04-03 | 国网北京市电力公司 | Information acquisition system for power system |
| CN105929739A (en) * | 2016-05-23 | 2016-09-07 | 大成（济南）路桥科技有限公司 | Two-bus electromagnetic valve control system and control method |
| CN108877187A (en) * | 2017-12-29 | 2018-11-23 | 国网山东省电力公司嘉祥县供电公司 | A kind of intelligent electric energy meter metrical information acquisition method and system |
| CN108877187B (en) * | 2017-12-29 | 2019-12-27 | 国网山东省电力公司嘉祥县供电公司 | Intelligent electric energy meter metering information acquisition method and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150624 |
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| EXPY | Termination of patent right or utility model |