CN204087472U - A kind of multimode centralized automatic meter-reading terminal being applied to electric system - Google Patents
A kind of multimode centralized automatic meter-reading terminal being applied to electric system Download PDFInfo
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- CN204087472U CN204087472U CN201420547949.9U CN201420547949U CN204087472U CN 204087472 U CN204087472 U CN 204087472U CN 201420547949 U CN201420547949 U CN 201420547949U CN 204087472 U CN204087472 U CN 204087472U
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- automatic meter
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- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
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Abstract
The utility model relates to a kind of multimode centralized automatic meter-reading terminal being applied to electric system, the downlink communication module of this terminal can access multiple different communication module simultaneously, and the work between multiple communication module does not influence each other, the downlink communication scheme of various technical scheme can be dispatched by centralized automatic meter-reading terminal, power line carrier local communication scheme or the small wireless communication plan that can realize different technologies scheme coexist, and the system of being convenient to realizes seamless smooth upgrade.
Description
Technical field
The utility model relates to a kind of centralized automatic meter-reading terminal, particularly a kind of multimode centralized automatic meter-reading terminal being applied to electric system.
Background technology
Centralized automatic meter-reading terminal applies is a much progress of intelligent grid in electric system automatic data logging, solves huge cost of labor and the other problems of manual metering charge generation.But existing centralized automatic meter-reading terminal is also present in some problems.Such as: at present because centralized automatic meter-reading terminal only supports a Local Communication Module, need to change when the part electric energy meter due to centralized automatic meter-reading terminal management exists fault, fault electric energy meter communication mode can only select original communication mode; When there being better local channel mode to support, because centralized automatic meter-reading terminal cannot compatible multiple local communication mode, the electric energy meter of other available old communication modes must be changed in the lump, the smooth upgrade of local channel cannot be realized, cause the waste of existing investment, cause larger construction work amount simultaneously; According to the compatible multiple local communication mode of a Local Communication Module, because various Local Communication Module is each module manufacturers self-developing, relate to stronger professional technique, be difficult to compatible various ways in a communication module.
Therefore need badly and develop a kind of multimode centralized automatic meter-reading terminal being applied to electric system compatibility is carried out to various communication module, thus reach cost-saving, ensure that the electric energy meter communication technology can the object of smooth upgrade.
Summary of the invention
The purpose of this utility model is to provide a kind of many communication ports centralized automatic meter-reading terminal being applied to electric system, can realize carrying out compatibility in same centralized automatic meter-reading terminal to various communication module.
The utility model adopts following scheme to realize: a kind of multimode centralized automatic meter-reading terminal being applied to electric system, comprises a MCU, a storer, a power supply, a uplink communication unit, peripheral circuit and downlink communication unit; Described power supply is powered to described MCU, the data of described meter reading terminal are stored to described storer by described MCU, described MCU is communicated with main station system by described uplink communication unit, described MCU is communicated with collector or acquisition module by described downlink communication unit, the input and output of described MCU Control peripheral circuit; It is characterized in that: described downlink communication unit comprises a communication module selection circuit, a Local Communication Module and an external communication module; The input of described communication module selection circuit is connected with described MCU; The input of described Local Communication Module is connected with the output of described communication module selection circuit, and described local communication interface can provide the modes such as infrared interface, RS232 interface, RS485 interface or wireless carrier communication interface; Described external Local Communication Module input is connected with the output of described communication module selection circuit, and described local communication interface can provide the modes such as infrared interface, RS232 interface, RS485 interface or wireless carrier communication interface;
In the utility model one embodiment, described uplink communication module is wireless communication module or Ethernet communication module.
In another embodiment of the utility model, described external Local Communication Module also provides a USB interface.
Compared with prior art the utility model has following technological merit:
1, the operation of different Local Communication Module is dispatched by centralized automatic meter-reading terminal, does not need to carry out special exploitation to local module, does not relate to the proprietary technology of each module manufacturers, greatly reduce development difficulty;
2, because Local Communication Module does not need change, effectively ensure that the degree of stability of system cloud gray model;
3, the program achieves the smooth upgrade of electric energy meter local communication technology, can according to service needed progressively upgrade failure equipment or upgrading local communication mode, the existing equipment investment of available protecting.
Accompanying drawing explanation
Fig. 1 is construction module figure of the present utility model.
Embodiment
Be a kind of construction module figure being applied to many communication ports centralized automatic meter-reading terminal of electric system of the utility model see Fig. 1.This meter reading terminal comprises a MCU, a storer, a power supply, a uplink communication unit, peripheral circuit and downlink communication unit.Can employing 32 RISC Embedded ARM9 kernel CPU AT91SAM9260 chips in specific embodiment of the utility model; Storer adopts FLASH memory or external RAM; Power supply generally adopts chargeable storage; Uplink communication module can adopt GPRS wireless communication module or cdma wireless communication module or adopt Ethernet communication module.Power supply is powered to MCU; The data of this meter reading terminal are stored to described storer by MCU, to call at any time; MCU is communicated with main station system by uplink communication module, and the power information that centralized automatic meter-reading terminal is copied from electric supply meter is sent to main station system.Peripheral circuit can be arranged according to the needs of centralized automatic meter-reading end, can comprise: alternating current sampling circuit, imput output circuit and human-computer exchange circuit.These are all the features that existing centralized automatic meter-reading terminal has above.Innovative point of the present utility model is can compatible multiple downlink communication scheme.
See Fig. 1, the downlink communication unit of the centralized automatic meter-reading terminal that the utility model provides comprises a communication module selection circuit, a Local Communication Module and an external communication module.The input of communication module selection circuit is connected with MCU, and the output of communication module selection circuit is connected with Local Communication Module and external communication module respectively.MCU selects Local Communication Module or external communication module to communicate with electric energy meter by controlling communication module selection circuit.Local Communication Module and external communication module can provide infrared interface, RS232 interface, RS485 interface or wireless carrier communication interface etc., can need to carry out selecting any connector to communicate according to the connection of electric energy meter.Connect communication module in embodiment China and foreign countries of the present utility model and one USB interface is also provided, this USB interface can be utilized to be connected with PC described external communication module is upgraded.External communication module can make hot-swappable form simultaneously, make this centralized automatic meter-reading terminal need not increase volume because increasing a downlink communication module, and exceed the size of the centralized automatic meter-reading terminal that State Grid Corporation of China " power user power consumption information acquisition system concentrator pattern specification Q/GDW375.2-2009 " specifies.Communication module selects the gating circuit that is made up of 74HC126 chip and peripheral circuit thereof in a particular embodiment.
External Local Communication Module can be selected according to the real needs of user, and external communication module comparatively Local Communication Module is more flexible, can change multiple communication module.Therefore the utility model can compatible plural downlink communication module, Local Communication Module and external communication module, wherein external communication module can also be selected according to user's request, the work of two communication modules is separate, bow out mutually, dispatched by MCU, can realize referring to two or more downlink communication scheme simultaneously.If such as have 100 families in same community, start everybody use be all the electric energy meter mated with Local Communication Module, the person of checking meter can use existing meter reading terminal to carry out automatic data logging.But suppose to have damaged the electric energy meter at wherein 5 families, change new electric energy meter, new electric energy meter can not well communicate with Local Communication Module, may just need the electric energy meter at other 95 families also to change together in the prior art, the Local Communication Module in centralized automatic meter-reading terminal also needs to be replaced with the communication module matched with new electric energy meter acquisition module.If utilize the utility model, external communication module can be utilized.External communication module selects the communication module matched with new electric energy meter acquisition module.MCU is selected Local Communication Module and external communication module by the control of communication module selection circuit, and the work between Local Communication Module and external communication module is bowed out mutually, is dispatched by the MCU of centralized automatic meter-reading terminal.When there is the Local Communication Module of better communication mode, also can carry out electric energy meter smooth upgrade by external communication module, without the need to the disposable upgrading of 100 family user, replacing electric energy meter, causing a large amount of waste.External communication module can select the communication module of producing with Local Communication Module different manufacturers, and the centralized automatic meter-reading terminal provided at the utility model also can well be compatible.
Adopt centralized automatic meter-reading terminal of the present utility model, the operation of different downlink communication module can be dispatched by centralized automatic meter-reading terminal, does not need to carry out special exploitation to communication module, does not relate to the proprietary technology of each module manufacturers, greatly reduce development difficulty; Because Local Communication Module does not need change, effectively ensure that the degree of stability of system cloud gray model; The program also can achieve the smooth upgrade of electric energy meter local communication technology, can according to service needed progressively upgrade failure equipment or upgrading downlink communication mode, and the existing equipment investment of available protecting, saves great amount of cost.
Finally bright, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (3)
1. be applied to a multimode centralized automatic meter-reading terminal for electric system, comprise a MCU, a storer, a power supply, a uplink communication unit, peripheral circuit and downlink communication unit; Described power supply is powered to described MCU, the data of described meter reading terminal are stored to described storer by described MCU, described MCU is communicated with main station system by described uplink communication unit, described MCU is communicated with collector or acquisition module by described downlink communication unit, the input and output of described MCU Control peripheral circuit;
It is characterized in that: described downlink communication unit comprises a communication module selection circuit, a Local Communication Module and an external communication module;
The input of described communication module selection circuit is connected with described MCU;
The input of described Local Communication Module is connected with the output of described communication module selection circuit, and described local communication interface can provide the modes such as infrared interface, RS232 interface, RS485 interface or wireless carrier communication interface;
Described external Local Communication Module input is connected with the output of described communication module selection circuit, and described local communication interface can provide the modes such as infrared interface, RS232 interface, RS485 interface or wireless carrier communication interface.
2. a kind of multimode centralized automatic meter-reading terminal being applied to electric system according to claim 1, is characterized in that: described uplink communication module is wireless communication module or Ethernet communication module.
3. a kind of multimode centralized automatic meter-reading terminal being applied to electric system according to claim 1, is characterized in that: described external Local Communication Module also provides a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547949.9U CN204087472U (en) | 2014-09-23 | 2014-09-23 | A kind of multimode centralized automatic meter-reading terminal being applied to electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547949.9U CN204087472U (en) | 2014-09-23 | 2014-09-23 | A kind of multimode centralized automatic meter-reading terminal being applied to electric system |
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| Publication Number | Publication Date |
|---|---|
| CN204087472U true CN204087472U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420547949.9U Expired - Fee Related CN204087472U (en) | 2014-09-23 | 2014-09-23 | A kind of multimode centralized automatic meter-reading terminal being applied to electric system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071869A (en) * | 2016-11-15 | 2017-08-18 | 国动物联网技术（上海）有限公司 | Compatible LoRaWAN Class A, Class B and write by hand pattern multimode terminal and multimode compatibility method |
-
2014
- 2014-09-23 CN CN201420547949.9U patent/CN204087472U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071869A (en) * | 2016-11-15 | 2017-08-18 | 国动物联网技术（上海）有限公司 | Compatible LoRaWAN Class A, Class B and write by hand pattern multimode terminal and multimode compatibility method |
| CN107071869B (en) * | 2016-11-15 | 2023-04-18 | 国动物联网有限公司 | Multimode terminal compatible with LoRaWAN Class A, class B and handsheet mode and multimode compatibility method |
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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: 20150107 Termination date: 20210923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |