CN215340037U - Household meter identity information acquisition system based on current carrier - Google Patents
Household meter identity information acquisition system based on current carrier Download PDFInfo
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- CN215340037U CN215340037U CN202120785451.6U CN202120785451U CN215340037U CN 215340037 U CN215340037 U CN 215340037U CN 202120785451 U CN202120785451 U CN 202120785451U CN 215340037 U CN215340037 U CN 215340037U
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Abstract
The utility model relates to a current carrier based household meter identity information acquisition system, which comprises: the broadband carrier module is arranged on the household meter; used for transmitting a current signal with a set frequency; the household meter current transformer is arranged on the household meter; the primary winding end of the broadband carrier module is electrically connected with the current transmitting end of the broadband carrier module, and the secondary winding end of the broadband carrier module is electrically connected with a power line of a power supply loop of the user meter; the current acquisition module is arranged at the position of a breaker of the meter box; the ammeter box concentrator is used for receiving a current signal of the position of the ammeter box breaker and is in data transmission connection with a signal receiving end of the ammeter box concentrator; the meter box current transformer is arranged at the position of a breaker of the meter box; the primary winding end of the meter box is electrically connected with a power line at the position of a breaker of the meter box, and the secondary winding end of the meter box is electrically connected with the current acquisition end of the current acquisition module. The household meter identity information acquisition system based on the current carrier wave can provide a data basis for unique identification of the home relationship between the meter box and the household meter.
Description
Technical Field
The utility model relates to the technical field of current carrier waves, in particular to a household meter identity information acquisition system based on current carrier waves.
Background
In recent years, a great deal of manpower and material resources are input into each power grid company in the aspect of smart power grid construction, the smart power grid construction is also greatly improved, and the basic data of the smart power grid are utilized to carry out big data analysis to solve the practical problems of power grid safety, fault first-aid repair, line loss management and the like. The physical topological relation of the low-voltage transformer area is the basis of refined management of the transformer area, and the physical topological relation of the transformer area can be changed due to the change of circuits and equipment of the transformer area in the processes of new construction, expansion and upgrading of the transformer area and daily maintenance and repair. Therefore, in order to realize the fine management of the station area, it is necessary to grasp the physical topological relation of "change-branch box-meter box-user table" of the station area.
In the prior art, a power carrier signal method is mainly adopted to identify the physical topological relation of 'change-branch box-meter box-user meter' in a transformer area. For example, chinese patent publication No. CN109256856B discloses a "station topology identification system and method based on power line broadband carrier (HPLC)", where the system includes a signal sending device and a signal receiving terminal, the signal sending device is internally provided with a power line broadband carrier communication module and is installed at the root of a transformer; the signal receiving terminal is internally provided with a wave trap for blocking 50Hz signals, has a unique ID code of the whole network by setting frequency signals, and is arranged at the inlet wire or outlet wire ends of the branch box and the electric meter box. The signal sending device firstly obtains ID codes of all signal receiving terminals, sends signals, controls the states of the signal receiving terminals, detects the current trend, and automatically identifies father nodes of all branch boxes and electricity meter boxes according to the current trend so as to obtain a topological graph of the whole transformer area.
The applicant finds that the above-mentioned prior art scheme can realize the identification of the physical topological relation of the part of the line of the "variable-branch box-meter box", because the distance between the branch boxes in the part of the line of the "variable-branch box-meter box" is relatively long, and the density of the branch boxes is low, so that the power parameter signal reception between the adjacent branch boxes is not easily influenced by each other. However, the distance between the meter boxes in the part of the line of the meter box-meter is relatively short, so that the problem that the electric power parameter signal sent by the same meter box is simultaneously received by two or more meter boxes easily occurs, and the attribution relationship between the meter boxes and the meter box is difficult to determine. Therefore, the applicant thinks of designing a short-distance power line carrier communication method based on current carriers, which transmits a set frequency current signal carrying user meter identity information from a user meter, superimposes the set frequency current signal on a power frequency current signal of a power line for transmission, receives and forwards the set frequency current signal on a meter box and sends the set frequency current signal to a meter box concentrator for calculation, and further avoids signal interference between the meter boxes by utilizing the characteristics of short propagation distance and fast attenuation of the current carrier signal, so that the unique identification of the home relationship between the meter box and the user meter can be realized. However, in order to implement the short-distance power line carrier communication method based on the current carrier, a technical problem to be solved is how to design an account meter identity information acquisition system which can transmit a set frequency current signal on an account meter and superimpose the set frequency current signal on a power line power frequency current signal, and can receive and forward the set frequency current signal on a meter box.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the technical problems to be solved by the utility model are as follows: how to provide one kind can be in the transmission sets for frequency current signal and superpose to power line power frequency current signal on the household meter, and can receive and forward the household meter identity information acquisition system who sets for frequency current signal on the table case to can provide the data basis for the only discernment of table case and household meter affiliation, thereby can assist the discernment that realizes platform district physical topological relation.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a household meter identity information acquisition system based on current carrier waves comprises:
the broadband carrier module is arranged on the household meter; used for transmitting a current signal with a set frequency;
the household meter current transformer is arranged on the household meter; the primary winding end of the household meter current transformer is electrically connected with the current transmitting end of the broadband carrier module, and the secondary winding end of the household meter current transformer is electrically connected with a power line of a household meter power supply loop;
the current acquisition module is arranged at the position of a breaker of the meter box; the ammeter box concentrator is used for receiving a current signal of the position of the ammeter box breaker and is in data transmission connection with a signal receiving end of the ammeter box concentrator;
the meter box current transformer is arranged at the position of a breaker of the meter box; the primary winding end of the meter box current transformer is electrically connected with a power line at the position of the meter box circuit breaker, and the secondary winding end of the meter box current transformer is electrically connected with the current acquisition end of the current acquisition module.
Preferably, the current collection module comprises a high-frequency transformer and a filter circuit; the high-frequency mutual inductor comprises a high-frequency mutual inductor and a meter box current mutual inductor, wherein the primary winding end of the high-frequency mutual inductor is used as a current acquisition end of a current acquisition module and is electrically connected with the secondary winding end of the meter box current mutual inductor, and the secondary winding end of the high-frequency mutual inductor is electrically connected with the filtering inlet end of a filter circuit.
Preferably, the current collection module further comprises a communication unit; and a signal receiving end of the communication unit is in data transmission connection with a filtering outlet end of the filtering circuit, and a signal output end of the communication unit is in data transmission connection with a signal receiving end of the meter box concentrator.
Preferably, the electric energy output end of the power supply module of the original ACDC conversion module of the household meter is electrically connected with the power supply end of the broadband carrier module.
Preferably, the meter box current transformer is a 1000:1 current transformer.
Compared with the prior art, the household meter identity information acquisition system has the following beneficial effects:
1. in the scheme, a broadband carrier module transmits a current signal with a set frequency, and a household meter current transformer couples the current signal with the set frequency to a power line, so that the current signal with the set frequency can be superposed with a power frequency current signal of the power line, namely the current signal with the set frequency can be transmitted on a household meter and superposed into the power frequency current signal of the power line; simultaneously, table case current transformer is on the current signal coupling to the current acquisition module with the power line of table case circuit breaker position to send current signal to the concentrator by current acquisition module and carry out relevant calculation, can receive and forward the frequency setting current signal on the table case promptly, consequently can provide the data basis for the only discernment of table case and house table affiliation, thereby can assist the discernment that realizes platform district physical topological relation.
2. In this scheme, broadband carrier module and current acquisition module all are connected with the power line through current transformer, compare with the direct mode of connecting through the direction, and the connected mode of this scheme need not do too much transformation to the original structure of house table and table case to can reduce the circuit transformation cost.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a configuration of a system for acquiring household meter identity information in an embodiment;
fig. 2 is a schematic structural diagram of connection between a broadband carrier module and a subscriber meter in the embodiment.
Detailed Description
The following is further detailed by the specific embodiments:
example (b):
the embodiment of the utility model discloses a current carrier based user meter identity information acquisition system.
As shown in fig. 1, a current carrier based user meter identity information acquisition system includes:
the broadband carrier module is arranged on the household meter; for emitting a current signal of a set frequency. Specifically, the broadband carrier module is an HPLC transmitting module that is well-known in the art, and its connection to the user meter is shown in fig. 2.
The household meter current transformer is arranged on the household meter; and the primary winding end of the household meter current transformer is electrically connected with the current transmitting end of the broadband carrier module, and the secondary winding end of the household meter current transformer is electrically connected with a power line of a household meter power supply loop. Specifically, the household meter current transformer is a transformer which is mature and used in the prior art.
The current acquisition module is arranged at the position of a breaker of the meter box; the meter box concentrator is used for receiving a current signal of the position of a breaker of the meter box and is in data transmission connection with a signal receiving end of the meter box concentrator.
The meter box current transformer is arranged at the position of a breaker of the meter box; the primary winding end of the meter box current transformer is electrically connected with a power line at the position of the meter box circuit breaker, and the secondary winding end of the meter box current transformer is electrically connected with the current acquisition end of the current acquisition module. Specifically, the meter box current transformer is a 1000:1 transformer.
In the scheme, a broadband carrier module transmits a current signal with a set frequency, and a household meter current transformer couples the current signal with the set frequency to a power line, so that the current signal with the set frequency can be superposed with a power frequency current signal of the power line, namely the current signal with the set frequency can be transmitted on a household meter and superposed into the power frequency current signal of the power line; simultaneously, table case current transformer is on the current signal coupling to the current acquisition module with the power line of table case circuit breaker position to send current signal to the concentrator by current acquisition module and carry out relevant calculation, can receive and forward the frequency setting current signal on the table case promptly, consequently can provide the data basis for the only discernment of table case and house table affiliation, thereby can assist the discernment that realizes platform district physical topological relation. Secondly, broadband carrier module and current acquisition module all are connected with the power line through current transformer in this scheme, compare with the direct mode of connecting through the direction, and the connected mode of this scheme need not do too much transformation to the original structure of house table and table case to can reduce the circuit transformation cost.
In a specific implementation process, the current acquisition module comprises a high-frequency transformer and a filter circuit; the high-frequency mutual inductor comprises a high-frequency mutual inductor and a meter box current mutual inductor, wherein the primary winding end of the high-frequency mutual inductor is used as a current acquisition end of a current acquisition module and is electrically connected with the secondary winding end of the meter box current mutual inductor, and the secondary winding end of the high-frequency mutual inductor is electrically connected with the filtering inlet end of a filter circuit. The current acquisition module further comprises a communication unit; and a signal receiving end of the communication unit is in data transmission connection with a filtering outlet end of the filtering circuit, and a signal output end of the communication unit is in data transmission connection with a signal receiving end of the meter box concentrator. Specifically, the communication unit is a data transceiver module that is well-used in the prior art.
In the scheme, the collected current signals can be coupled and filtered by the high-frequency mutual inductor and the filter circuit, so that accurate and clean set frequency current signals can be obtained and forwarded to the concentrator for calculation, and the unique identification of the meter box and the household meter attribution relationship can be realized in a better auxiliary mode. Secondly, the set frequency current signal can be effectively transmitted to the concentrator through the communication unit.
In a specific implementation process, an electric energy output end of a power supply module of an original ACDC conversion module of the household meter is electrically connected with a power supply end of the broadband carrier module. In the scheme, the power supply module of the original ACDC conversion module of the household meter can supply power for the broadband carrier module, namely, other power supply modules are not required to be added, so that the structure of the broadband carrier module can be simplified, and the line reconstruction cost can be reduced.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art, and it will be appreciated by those skilled in the art that the present invention has been made available to those skilled in the art after the filing date or priority date, and that the present invention may be implemented by those skilled in the art by applying ordinary skill in the art, without departing from the spirit and scope of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. A household meter identity information acquisition system based on current carrier is characterized by comprising:
the broadband carrier module is arranged on the household meter; used for transmitting a current signal with a set frequency;
the household meter current transformer is arranged on the household meter; the primary winding end of the household meter current transformer is electrically connected with the current transmitting end of the broadband carrier module, and the secondary winding end of the household meter current transformer is electrically connected with a power line of a household meter power supply loop;
the current acquisition module is arranged at the position of a breaker of the meter box; the ammeter box concentrator is used for receiving a current signal of the position of the ammeter box breaker and is in data transmission connection with a signal receiving end of the ammeter box concentrator;
the meter box current transformer is arranged at the position of a breaker of the meter box; the primary winding end of the meter box current transformer is electrically connected with a power line at the position of the meter box circuit breaker, and the secondary winding end of the meter box current transformer is electrically connected with the current acquisition end of the current acquisition module.
2. The current carrier based subscriber identity information acquisition system of claim 1, wherein: the current acquisition module comprises a high-frequency mutual inductor and a filter circuit; the high-frequency mutual inductor comprises a high-frequency mutual inductor and a meter box current mutual inductor, wherein the primary winding end of the high-frequency mutual inductor is used as a current acquisition end of a current acquisition module and is electrically connected with the secondary winding end of the meter box current mutual inductor, and the secondary winding end of the high-frequency mutual inductor is electrically connected with the filtering inlet end of a filter circuit.
3. The current carrier based subscriber identity information acquisition system of claim 2, wherein: the current acquisition module further comprises a communication unit; and a signal receiving end of the communication unit is in data transmission connection with a filtering outlet end of the filtering circuit, and a signal output end of the communication unit is in data transmission connection with a signal receiving end of the meter box concentrator.
4. The current carrier based subscriber identity information acquisition system of claim 1, wherein: and the electric energy output end of the power supply module of the original ACDC conversion module of the household meter is electrically connected with the power supply end of the broadband carrier module.
5. The current carrier based subscriber identity information acquisition system of claim 1, wherein: the meter box current transformer is a 1000:1 current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785451.6U CN215340037U (en) | 2021-04-16 | 2021-04-16 | Household meter identity information acquisition system based on current carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785451.6U CN215340037U (en) | 2021-04-16 | 2021-04-16 | Household meter identity information acquisition system based on current carrier |
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| Publication Number | Publication Date |
|---|---|
| CN215340037U true CN215340037U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120785451.6U Active CN215340037U (en) | 2021-04-16 | 2021-04-16 | Household meter identity information acquisition system based on current carrier |
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| CN (1) | CN215340037U (en) |
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2021
- 2021-04-16 CN CN202120785451.6U patent/CN215340037U/en active Active
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Address after: 400722 no.117-480, Yunhan Avenue, Beibei District, Chongqing Patentee after: Aerospace Zhongdian (Chongqing) Microelectronics Co.,Ltd. Patentee after: Chongqing Wuqi Technology Co., Ltd Address before: 400722 no.117-480, Yunhan Avenue, Beibei District, Chongqing Patentee before: China Aerospace Technology (Chongqing) Co.,Ltd. Patentee before: Chongqing Wuqi Technology Co., Ltd |
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