CN214122309U - Metering box capable of identifying electric energy meter epitope - Google Patents
Metering box capable of identifying electric energy meter epitope Download PDFInfo
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- CN214122309U CN214122309U CN202022786601.3U CN202022786601U CN214122309U CN 214122309 U CN214122309 U CN 214122309U CN 202022786601 U CN202022786601 U CN 202022786601U CN 214122309 U CN214122309 U CN 214122309U
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Abstract
The application provides a batch meter that can discern electric energy meter epitope includes: the system comprises a metering box, an electric energy meter, an intelligent sensing terminal and a communication relay; the electric energy meters are respectively connected with the external communication port of the intelligent sensing terminal through respective communication interfaces; the external communication port of the intelligent sensing terminal is respectively connected with the input end of each communication relay which is arranged corresponding to each electric energy meter, and the output end of each communication relay is connected with the communication bus of the intelligent sensing terminal; the intelligent sensing terminal can be communicated with the electric energy meters one by controlling the communication relays to be closed respectively. The utility model provides a can realize newly installing and the automatic discovery of changing the electric energy meter, the automatic identification electric energy meter's physical position realizes the automatic identification of electric energy meter information and types the function, has reduced the work mistake such as artificial input mistake, and very big assurance customer's archives information is accurate, has established the strong basis for accurate service.
Description
Technical Field
The application relates to the technical field of metering box installation and use, in particular to a metering box capable of identifying electric energy meter epitopes.
Background
The metering box for mounting the electric energy meter is located close to the extreme end of the power grid, wherein the mounted electric energy meter plays an important role in metering the electric energy consumption. At present, low-voltage metering boxes in many areas have various specifications and lack unified management standards, when a platform area is newly assembled, moved and changed, and equipment moves, installation information is basically input manually on site, the inaccurate wiring of an electric energy meter is inevitable to appear, household meter archives do not correspond to other working errors, sometimes, in order to ensure that customer archive information is accurate, the on-site check and comparison are required to be repeated, and inconvenience is brought to daily management and low-voltage centralized meter reading, operation and maintenance work.
Although the smart electric meter with the HPLC communication is popularized continuously at present, the smart electric meter reading by the RS485 communication is still a mainstream meter reading mode. The built-in electric energy meter collector of present thing networking batch meter can search the meter technique through RS485 is automatic, discovers automatically and reads the electric energy meter in the batch meter, but because RS485 is bus communication structure, can't acquire the installation physical position of electric energy meter, still can't avoid the ammeter wiring inaccurate, the family table archives scheduling problem that does not correspond.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a batch meter that can discern electric energy meter epitope to solve prior art ammeter wiring inaccurate, the problem that the family table archives do not correspond.
The utility model provides a can discern batch meter of electric energy meter epitope, include: the intelligent sensing terminal is connected with the metering box, and the intelligent sensing terminal is connected with the communication relays in a communication mode;
the intelligent sensing terminal is provided with external communication ports with the number equal to or more than that of the electric energy meters; the electric energy meters are respectively connected with the external communication port of the intelligent sensing terminal through respective communication interfaces;
the external communication port of the intelligent sensing terminal is respectively connected with the input end of each communication relay which is arranged corresponding to each electric energy meter, and the output end of each communication relay is connected with the communication bus of the intelligent sensing terminal;
the intelligent sensing terminal can be communicated with the electric energy meters one by controlling the communication relays to be closed respectively.
Preferably, the electric energy meters mark the serial numbers according to the epitopes, and the intelligent sensing terminal records data of each electric energy meter corresponding to the serial numbers.
Preferably, the communication bus of the intelligent sensing terminal adopts an RS485 communication bus.
Preferably, the communication relay adopts a single-pole double-throw relay; the intelligent sensing terminal is respectively provided with a control end for controlling power-on and power-off of a coil of the single-pole double-throw relay corresponding to each communication relay, and the control ends are respectively and electrically connected with the coil control ends of the communication relays.
Preferably, the output port of the intelligent sensing terminal is connected to the concentrator through a broadband power line carrier module; and the data of each electric energy meter in the metering box collected by the intelligent sensing terminal is transmitted to the concentrator through the broadband power line carrier module.
Compared with the prior art, the method has the following advantages:
the application provides a batch meter that can discern electric energy meter epitope includes: the intelligent sensing terminal is connected with the metering box, and the intelligent sensing terminal is connected with the communication relays in a communication mode; the intelligent sensing terminal is provided with external communication ports with the number equal to or more than that of the electric energy meters; the electric energy meters are respectively connected with the external communication port of the intelligent sensing terminal through respective communication interfaces; the external communication port of the intelligent sensing terminal is respectively connected with the input end of each communication relay arranged corresponding to each electric energy meter, and the output end of each communication relay is connected with the communication bus of the intelligent sensing terminal; the intelligent sensing terminal can be communicated with the electric energy meters one by controlling the communication relays to be closed respectively. The utility model provides a can realize newly installing and the automatic discovery of changing the electric energy meter, the automatic identification electric energy meter's physical position realizes the automatic identification of electric energy meter information and types the function, has reduced the work mistake such as artificial input mistake, and very big assurance customer's archives information is accurate, has established the strong basis for accurate service.
Drawings
FIG. 1 is a schematic diagram of a wiring of a metering box provided in an embodiment of the present application;
fig. 2 is a schematic diagram of implementing one-by-one communication with an electric energy meter by using RS485 according to an embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
The embodiment of the application provides a batch meter that can discern electric energy meter epitope, and fig. 1 is batch meter wiring schematic diagram, and fig. 2 is the schematic diagram that adopts RS485 to realize communicating one by one with the electric energy meter, and this application embodiment combines the attached drawing to introduce the work flow of batch meter.
The batch meter that can discern electric energy meter epitope that this embodiment provided includes: a metering box (not shown in the figure, which refers to a device with other components installed in a case), a plurality of electric energy meters installed in the metering box, a smart sensing terminal 2, and the same number of communication relays as the plurality of electric energy meters. In the present embodiment, the plurality of electric energy meters are specifically 4, which are identified as 1-1 to 1-4 in fig. 1, and are installed corresponding to epitope 1 to epitope 4. The intelligent sensing terminal is a special industrial control device widely used in a power grid, can output a control signal in a programming mode, realizes communication with the electric energy meter, receives data transmitted by the electric energy meter, and integrates and uploads the data.
The intelligent sensing terminal 2 is provided with external communication circuit output ends with the number equal to or more than that of the electric energy meters; in this embodiment, an RS485 port is specifically adopted, and output ends of the external communication circuits in the figure are identified as RS485-1 to RS 485-4. The electric energy meters are respectively connected with the external communication circuit ports of the intelligent sensing terminal through respective communication circuit interfaces. The intelligent sensing terminal is a terminal power grid intelligent sensing terminal, is mainly used for collecting information of an electric energy meter at the terminal of a power supply system, is a mature product commonly used in the industry at present, and can also be obtained by combining certain control software on the basis of a universal PLC device.
The external communication circuit ports of the intelligent sensing terminal 2 are respectively connected with the circuit input ends of the communication relays which are arranged corresponding to the electric energy meters, and the circuit output ends of the communication relays are connected with the communication bus of the intelligent sensing terminal 2. The communication relay is arranged inside the intelligent sensing terminal 2. In the present embodiment, the communication relays are provided corresponding to the electric energy meter, and there are four communication relays 3-1 to 3-4 in total.
The intelligent sensing terminal 2 can be communicated with the electric energy meters one by controlling the communication relays to be respectively closed.
The metering box is the general body of a metering device and auxiliary equipment which are necessary for metering electric energy in a broad sense, and the appearance of the general metering box is in a three-dimensional cabinet type; in the present embodiment, the metering box also refers to a case member for mounting all functional components. The electric energy meter is an instrument for measuring electric energy, and the electric energy meter electricity utilization information acquisition terminal is respectively arranged on the fixed clamp, the mounting frame or the grid plate. A plurality of electric energy meters are arranged in the metering box, as shown in figure 2, the horizontal distance between the electric energy meter 1-1 and the electric energy meter 1-2 is not less than 30mm, and the vertical distance between the electric energy meter 1-1 and the electric energy meter 1-3 is not less than 80 mm. The distance between the electric energy meter and the intelligent sensing terminal is not less than 60 mm. The distance between the front surface of the electric energy meter and the observation window of the metering box is 15-20 mm.
In the embodiment of the application, the electric energy meters are arranged as shown in fig. 2, and the electric energy meters are marked according to the epitope marking serial numbers, such as epitope 1 and epitope 2. Taking the electric energy meter 1-1 at the position of the epitope 1 as an example, the electric energy meter 1-1 is connected with an external communication circuit port RS485-1 of the intelligent sensing terminal 2 through a lower end communication interface, moreover, an RS485 communication bus circuit is adopted as a communication bus circuit of the intelligent sensing terminal 2, and a half-duplex working mode is adopted by the RS485 to support multipoint data communication. The RS485 bus network topology generally adopts a bus type structure with matched terminals, that is, a bus is adopted to connect nodes in series. In the embodiment of the application, the communication bus circuit of the intelligent sensing terminal 2 adopts an RS485 communication bus circuit, and the serial number records the data of each electric energy meter.
The number of the communication relays is the same as that of the electric energy meters in the metering box, and each electric energy meter is provided with one communication relay corresponding to the communication relay. The external communication circuit port of the intelligent sensing terminal 2 is respectively connected with the input end of each communication relay which is arranged corresponding to each electric energy meter, and the output end of each communication relay is connected with the communication bus of the intelligent sensing terminal 2.
As shown in fig. 2, the communication relay is a single-pole double-throw relay, and the communication relay includes a coil, a common terminal (i.e., an output terminal of the communication relay), a normally closed terminal, and a normally open terminal (i.e., an input terminal of the communication relay). When the coil is not energized, the common terminal and the normally closed terminal are connected. When the coil is electrified, the public end is connected with the normally open end, and the communication interface of the corresponding electric energy meter is connected to the communication bus of the intelligent sensing terminal. The intelligent sensing terminal 2 is respectively provided with a Control terminal, such as a Control terminal Control-1, corresponding to each communication relay, for controlling power-on and power-off of the coil of the single-pole double-throw relay. The circuit common output end of the communication relay is connected with the output end of the RS485 communication bus circuit of the intelligent sensing terminal 2, the Control end Control-1 controls the coil to be powered on and powered off, when the coil is powered on, the circuit common output end of the communication relay is connected with the circuit output end of the normally open end of the single-pole double-throw switch, and therefore the communication bus circuit of the intelligent sensing terminal 2 is connected with a communication interface of the electric energy meter. The specific implementation process is as follows: the Control-1 Control end provides an electric signal for controlling the coil of the relay 3-1 to be electrified, an external communication port RS485-1 is connected to an RS485 communication bus of the intelligent sensing terminal 2 through a switch controlled by the relay, and the external communication circuit port RS485-1 is connected with a communication interface of the electric energy meter 1-1 at the position of the epitope 1, so that the electric energy meter 1-1 is in communication connection with a central Control unit in the intelligent sensing terminal, and the ID of the electric energy meter 1-1 at the epitope 1 can be recorded in the communication process of the electric energy meter 1-1 and the central Control unit.
It should be noted that the intelligent sensing terminal 2 communicates with each of the electric energy meters one by one. The process can be analogized to time division multiplexing in the communication field; time division multiplexing is the transmission of different signals in different time periods of the same physical connection, and can also achieve the purpose of multiplex transmission. Time division multiplexing uses time as a parameter for signal division, and therefore, it is necessary to prevent signals from overlapping each other on the time axis. That is to say, in the embodiment of the application, when the Control-1 Control end circuit is powered on, the RS485 communication bus of the intelligent sensing terminal 2 is accessed to the external communication port RS485-1 of the intelligent sensing terminal, and the ID of the electric energy meter 1-1 of the meter position 1 is recorded in the circuit access process. Meanwhile, when the Control-1 Control end circuit is powered on, the Control-2 Control end, the Control-3 Control end and the Control-4 Control end cannot be powered on, that is, the time division multiplexing mode means that only one Control end is allowed to work in the same time period. The control procedure provided by the present embodiment can be understood in the concept of time division multiplexing.
And the data of each electric energy meter in the metering box collected by the intelligent sensing terminal 2 is transmitted to the concentrator through the broadband power line carrier module. A Concentrator (Concentrator) is a central connection point device that connects terminals, computers or communication devices. Broadband power line carrier, HPLC for short, is a high-speed power line carrier, also called broadband power line carrier, and is a broadband power line carrier technology for data transmission on low-voltage power lines. The broadband power line carrier communication network is a communication network which takes a power line as a communication medium and realizes the aggregation, transmission and interaction of the power utilization information of low-voltage power users.
In the embodiment of the application, after the data information of the electric energy meters 1-1 at the position of the epitope 1 is collected by the scheme, the intelligent sensing terminal 2 collects the collected data of each electric energy meter in the metering box and transmits the collected data to the concentrator through the broadband power line carrier module.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.
Claims (5)
1. The utility model provides a can discern batch meter of electric energy meter epitope which characterized in that includes: the intelligent sensing terminal is connected with the metering box, and the intelligent sensing terminal is connected with the communication relays in a communication mode;
the intelligent sensing terminal is provided with external communication ports with the number equal to or more than that of the electric energy meters; the electric energy meters are respectively connected with the external communication port of the intelligent sensing terminal through respective communication interfaces;
the external communication port of the intelligent sensing terminal is respectively connected with the input end of each communication relay which is arranged corresponding to each electric energy meter, and the output end of each communication relay is connected with the communication bus of the intelligent sensing terminal;
the intelligent sensing terminal can be communicated with the electric energy meters one by controlling the communication relays to be closed respectively.
2. The metering box capable of identifying the electric energy meter epitopes according to claim 1, wherein the electric energy meter marks serial numbers according to the epitopes, and the intelligent sensing terminal records data of each electric energy meter corresponding to the serial numbers.
3. The metering box capable of identifying the electric energy meter epitope according to claim 1, characterized in that the communication bus of the intelligent sensing terminal adopts an RS485 communication bus.
4. The metering box capable of identifying the electric energy meter epitope according to claim 1, characterized in that the communication relay adopts a single-pole double-throw relay; the intelligent sensing terminal is respectively provided with a control end for controlling power-on and power-off of a coil of the single-pole double-throw relay corresponding to each communication relay, and the control ends are respectively and electrically connected with the coil control ends of the communication relays.
5. The metering box capable of identifying the electric energy meter epitope as claimed in claim 1, wherein the output port of the intelligent sensing terminal is connected to the concentrator through a broadband power line carrier module; and the data of each electric energy meter in the metering box collected by the intelligent sensing terminal is transmitted to the concentrator through the broadband power line carrier module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022786601.3U CN214122309U (en) | 2020-11-25 | 2020-11-25 | Metering box capable of identifying electric energy meter epitope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022786601.3U CN214122309U (en) | 2020-11-25 | 2020-11-25 | Metering box capable of identifying electric energy meter epitope |
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| CN214122309U true CN214122309U (en) | 2021-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415243A (en) * | 2020-11-25 | 2021-02-26 | 国网宁夏电力有限公司中卫供电公司 | Metering box capable of identifying electric energy meter epitope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415243A (en) * | 2020-11-25 | 2021-02-26 | 国网宁夏电力有限公司中卫供电公司 | Metering box capable of identifying electric energy meter epitope |
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