CN210924886U - Electric energy meter communication device - Google Patents
Electric energy meter communication device Download PDFInfo
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- CN210924886U CN210924886U CN201922404296.4U CN201922404296U CN210924886U CN 210924886 U CN210924886 U CN 210924886U CN 201922404296 U CN201922404296 U CN 201922404296U CN 210924886 U CN210924886 U CN 210924886U
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Abstract
The application discloses electric energy meter communication device includes: the communication module and the external load switch are configured on the metering chip of the electric energy meter; the communication module is provided with a carrier communication unit or an RS485 communication unit and is used for establishing carrier communication or RS485 communication between the external load switch and the electric energy meter. The electric energy meter with the single control means solves the technical problems that in the prior art, the electric energy meter with the single control means is difficult to realize reliable communication data interaction of the electric energy meter in different application occasions, and the diversified requirements of a user on the communication means are difficult to meet.
Description
Technical Field
The application belongs to the technical field of electric energy meters, and particularly relates to an electric energy meter communication device.
Background
The existing load control device of the electric energy meter has a single control means, and along with the development of network communication technology, the electric energy meter with the single control means is difficult to realize reliable communication data interaction of the electric energy meter in different application occasions, and is difficult to meet the requirement of users on diversified communication means.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides an electric energy meter communication device, which solves the technical problems that in the prior art, an electric energy meter with a single control means is difficult to realize reliable communication data interaction of the electric energy meter in different application occasions, and the requirement of a user on the diversification of communication means is difficult to meet.
The application provides an electric energy meter communication device includes:
the communication module and the external load switch are configured on the metering chip of the electric energy meter;
the communication module is provided with a carrier communication unit or an RS485 communication unit and is used for establishing carrier communication or RS485 communication between the external load switch and the electric energy meter.
Optionally, the communication module is further configured with a bluetooth communication unit, configured to establish bluetooth communication between the external load switch and the electric energy meter.
Optionally, the carrier communication unit includes a carrier transmission circuit and a signal coupling circuit, and the carrier transmission circuit is connected to the signal coupling circuit.
Optionally, the carrier communication unit further includes a carrier chip, and the carrier chip is connected to the carrier transmission circuit.
Optionally, the carrier communication unit further includes a carrier receiving circuit, and the carrier receiving circuit is connected to the signal coupling circuit.
Optionally, the RS485 communication unit includes an RS485 communication circuit and a signal coupling circuit, and the RS485 communication circuit is connected to the signal coupling circuit.
Optionally, the bluetooth communication unit includes a PCBA board, and a bluetooth function integrated circuit is provided on the PCBA board.
To sum up, the present application provides an electric energy meter communication device, including: the communication module and the external load switch are configured on the metering chip of the electric energy meter; the communication module is provided with a carrier communication unit or an RS485 communication unit and is used for establishing carrier communication or RS485 communication between the external load switch and the electric energy meter.
The utility model provides a pair of electric energy meter communication device, through the communication module who disposes on the measurement chip of electric energy meter, this communication module can dispose carrier communication unit or RS485 communication unit, can realize the electric energy meter to the external load switch's of many first communication through carrier communication mode or RS485 communication mode to realize the external load switch of many first flexible controls of electric energy meter. The electric energy meter with the single control means solves the technical problems that in the prior art, the electric energy meter with the single control means is difficult to realize reliable communication data interaction of the electric energy meter in different application occasions, and the diversified requirements of a user on the communication means are difficult to meet.
Drawings
Fig. 1 is a schematic structural diagram of an electric energy meter communication device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a carrier communication unit of an electric energy meter communication device according to an embodiment of the present application;
fig. 3 is a schematic connection diagram of an electric energy meter communication device and an electric energy meter according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an RS485 communication unit of an electric energy meter communication device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a bluetooth communication unit of an electric energy meter communication device according to an embodiment of the present application.
Detailed Description
The application provides a pair of electric energy meter communication device, the electric energy meter that has solved single control means among the prior art is difficult to accomplish the communication data interaction of electric energy meter at the application occasion homoenergetic of difference reliable, and is difficult to satisfy the technical problem of user to the diversified demand of communication means.
The electric energy meter communication device is a multi-element external load switch control implementation mode developed on the basis of a next-generation electric energy meter with a multi-core modular design concept. The modular design concept is that the metering chip and the management chip are relatively independent, and an uplink and downlink communication module and various service application modules are simultaneously arranged, so that the compatibility and the expandability of the electric energy meter can be improved.
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of an electric energy meter communication device according to an embodiment of the present application; fig. 2 is a schematic structural diagram of a carrier communication unit of an electric energy meter communication device according to an embodiment of the present application; fig. 3 is a schematic connection diagram of an electric energy meter communication device and an electric energy meter according to an embodiment of the present disclosure; fig. 4 is a schematic structural diagram of an RS485 communication unit of an electric energy meter communication device according to an embodiment of the present application; fig. 5 is a schematic structural diagram of a bluetooth communication unit of an electric energy meter communication device according to an embodiment of the present application.
The embodiment of the application provides an electric energy meter communication device, includes:
the communication module and the external load switch are configured on the metering chip of the electric energy meter;
the communication module is provided with a carrier communication unit or an RS485 communication unit and is used for establishing carrier communication or RS485 communication between the external load switch and the electric energy meter.
It should be noted that, when the electric energy meter is in the carrier communication mode and the 485 communication mode, the external load control device of the electric energy meter needs a 220V signal as a control signal of the load switch, and when the load switch detects that the control signal is greater than 110V, the on state of the load switch is maintained, so as to supply power to a user. When the load switch detects that the control signal is 0V, the load switch is in a tripping state, and the electricity of a user is cut off. The specific driving control mode of the electric energy meter is that a 5-pin auxiliary terminal of the electric energy meter directly outputs a 220V switching signal (the 220V signal needs to be connected to one end of a relay inside the electric energy meter), and meanwhile, the relay in the meter needs to be configured into a normally closed mode (the default of meter parameters is the normally closed mode) during parameter setting, namely when power is needed to be supplied to a user, the relay in the meter is in a closed state, and the 5-pin auxiliary terminal outputs the 220V signal; when the user needs to be cut off, the relay in the meter trips, and the auxiliary terminal outputs 0V. The schematic diagram of the connection with the electric energy meter is shown in fig. 4. According to the electric energy meter control method and device, the carrier communication unit or the RS485 communication unit can be configured on the metering chip of the electric energy meter, and the electric energy meter can realize the multi-element communication of the electric energy meter to the external load switch by combining with newly developed related software control programs, so that the flexible, safe and reliable control can be realized. The carrier communication unit and the RS485 communication module realize control over the external load switch through serial port communication, and the electric energy meter can select the carrier communication unit or the RS485 module according to the design idea, so that the external load switch can be flexibly, safely and reliably controlled.
Furthermore, the communication module is also provided with a Bluetooth communication unit for establishing Bluetooth communication between the external load switch and the electric energy meter.
It should be noted that, in the application, the carrier communication unit or the RS485 communication unit may be configured on the metering core of the electric energy meter, or the developed bluetooth communication unit may be configured on the management core, and in combination with a newly developed related software control program, the electric energy meter may implement the multiple communication to the external load switch, thereby implementing the flexible, safe and reliable control. The carrier communication unit and the RS485 communication unit realize control over the external load switch through serial port communication, and the Bluetooth communication unit realizes control over the external load switch through a wireless Bluetooth transmission technology. According to the design concept, the electric energy meter can select a carrier module, an RS485 module or a Bluetooth module to realize multi-element communication, so that the external load switch can be flexibly, safely and reliably controlled.
Further, the carrier communication unit includes a carrier transmission circuit and a signal coupling circuit, and the carrier transmission circuit is connected to the signal coupling circuit.
It should be noted that, as shown in fig. 3, the carrier communication unit implements reliable data exchange between the electric energy meter and the remote control center through the carrier module. The newly developed carrier module based on the multi-core modular design concept is a communication mode for information transmission by using a power line network, and can be used for power management, remote meter reading, an alarm system and an intelligent cell. Based on the design concept, the carrier module can realize remote control tripping and closing of the electric energy meter. When tripping is needed, a microcomputer control system of the remote control center sends a tripping command by using upper computer control software to control a small relay in the electric energy meter to trip, a meter tripping indicating lamp is turned on, and the voltage between the 5 th pin of the auxiliary terminal and the 3 rd pin of the main terminal of the electric energy meter is 0V (note that the voltage of about 30V is normal); then, software is used for sending a switching-on command, a small relay in the electric energy meter is switched on, and the voltage between the 5 th pin and the 3 rd pin of the auxiliary terminal of the electric energy meter is about 220V (the voltage is qualified when the voltage is more than 150V); if the auxiliary terminal 5 pin and the auxiliary terminal 6 pin are short-circuited at the moment, the meter tripping indicating lamp is turned off after 3 seconds.
Further, the carrier communication unit further comprises a carrier chip, and the carrier chip is connected with the carrier transmitting circuit.
The carrier communication unit is further provided with a carrier chip, is in communication connection with the electric energy meter, and is in communication connection with the carrier sending circuit.
Further, the carrier communication unit further comprises a carrier receiving circuit, and the carrier receiving circuit is connected with the signal coupling circuit.
The carrier communication unit is provided with a carrier receiving circuit, which is connected to the signal coupling circuit and the carrier chip.
Further, the RS485 communication unit comprises an RS485 communication circuit and a signal coupling circuit, and the RS485 communication circuit is connected with the signal coupling circuit.
It should be noted that the basic principle of the RS485 communication unit is communication with a carrier, and only the communication mode is changed to 485 communication. A485 communication circuit is designed in the electric energy meter, so that safe and reliable control of the external load switch can be realized by data interaction with a master station, and a control circuit of the external load switch is shown in FIG. 4.
Furthermore, the bluetooth communication unit includes the PCBA board, is equipped with bluetooth function integrated circuit on the PCBA board.
It should be noted that, as shown in fig. 5, the bluetooth communication unit implements control over the external load switch through bluetooth low energy wireless transmission technology. The communication mode needs the electric energy meter and the load switch to be simultaneously provided with the Bluetooth communication module, and the Bluetooth communication module can be a PCBA board integrating the Bluetooth function, namely a chip basic circuit set integrating the Bluetooth function. And configuring corresponding software control programs. The specific software control flow is that the master station or the field handheld device issues the MAC address of the load switch to the electric energy meter so as to realize the address matching of the electric energy meter and the load switch, the Bluetooth safety strategy of the electric energy meter is used for ensuring the encryption of Bluetooth data communication, the electric energy meter and the switch are in data connection, and relevant states and events are read. The bluetooth security policy is that the host needs to perform bluetooth authentication before performing operations such as data reading or writing on the electric energy meter through bluetooth, and opens corresponding permissions.
The basic process of the electric energy meter Bluetooth communication control load switch is briefly described as follows:
1) the master station or the handheld device completes identity authentication with the electric energy meter and issues a remote switch opening and closing command to the electric energy meter;
2) after the electric energy meter correctly analyzes the ciphertext, the electric energy meter and the switch perform switch identity authentication, and the electric energy meter directly exits after failure;
3) after the switch identity authentication is passed, the writing operation is opened, and the electric energy meter can remotely open and close the switch in a plaintext manner or write parameters.
4) And after the switch is switched on or the data is written, the electric energy meter is disconnected, and if the switch does not have any data frame communication within 60 seconds, the switch is actively disconnected.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same;
although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (7)
1. An electric energy meter communication device, comprising:
the communication module and the external load switch are configured on the metering chip of the electric energy meter;
the communication module is provided with a carrier communication unit or an RS485 communication unit and is used for establishing carrier communication or RS485 communication between the external load switch and the electric energy meter.
2. The electric energy meter communication device according to claim 1, wherein the communication module is further configured with a bluetooth communication unit for establishing bluetooth communication between the external load switch and the electric energy meter.
3. The electric energy meter communication device according to claim 1, wherein the carrier communication unit comprises a carrier transmission circuit and a signal coupling circuit, and the carrier transmission circuit is connected with the signal coupling circuit.
4. The electric energy meter communication device according to claim 3, wherein the carrier communication unit further comprises a carrier chip, and the carrier chip is connected to the carrier transmission circuit.
5. The electric energy meter communication device according to claim 4, wherein the carrier communication unit further comprises a carrier receiving circuit, and the carrier receiving circuit is connected with the signal coupling circuit.
6. The electric energy meter communication device according to claim 1, wherein the RS485 communication unit comprises an RS485 communication circuit and a signal coupling circuit, and the RS485 communication circuit is connected with the signal coupling circuit.
7. The electric energy meter communication device according to claim 2, wherein the Bluetooth communication unit comprises a PCBA board, and a Bluetooth function integrated circuit is arranged on the PCBA board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922404296.4U CN210924886U (en) | 2019-12-27 | 2019-12-27 | Electric energy meter communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922404296.4U CN210924886U (en) | 2019-12-27 | 2019-12-27 | Electric energy meter communication device |
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| Publication Number | Publication Date |
|---|---|
| CN210924886U true CN210924886U (en) | 2020-07-03 |
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| CN201922404296.4U Active CN210924886U (en) | 2019-12-27 | 2019-12-27 | Electric energy meter communication device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399393A (en) * | 2020-10-30 | 2021-02-23 | 国网湖南省电力有限公司 | Intelligent electric energy meter device and communication method thereof |
| CN112399394A (en) * | 2020-10-30 | 2021-02-23 | 国网湖南省电力有限公司 | Intelligent electric energy meter system based on Bluetooth communication and communication method thereof |
| CN112700629A (en) * | 2020-12-08 | 2021-04-23 | 烟台科大正信电气有限公司 | Intelligent electric energy meter communication system |
-
2019
- 2019-12-27 CN CN201922404296.4U patent/CN210924886U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399393A (en) * | 2020-10-30 | 2021-02-23 | 国网湖南省电力有限公司 | Intelligent electric energy meter device and communication method thereof |
| CN112399394A (en) * | 2020-10-30 | 2021-02-23 | 国网湖南省电力有限公司 | Intelligent electric energy meter system based on Bluetooth communication and communication method thereof |
| CN112700629A (en) * | 2020-12-08 | 2021-04-23 | 烟台科大正信电气有限公司 | Intelligent electric energy meter communication system |
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Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd. |