Terminal and method for checking and accepting missort and wrong wiring

Abstract

The invention relates to the technical field of power monitoring, in particular to a missort and wrong wiring acceptance terminal and method, and the missort and wrong wiring acceptance terminal comprises a load generation module, a meter reading module, a control module, a communication module and a display module. During missort acceptance, the acceptance terminal is connected to a power line in a user home, the meter reading module automatically communicates with the electric energy meter, and the control module controls the load generation module to generate a specified load and controls the meter reading module to read forward active power data of the electric energy meter. Whether missort exists or not and whether incoming and outgoing line reverse connection exists or not are judged according to electric meter forward active power changes before and after the load generation module is started, the communication module is used for communicating with a mobile phone, and the display module is controlled by the control module to display to-be-tested information and test results. According to the missort and wrong wiring acceptance terminal and method, missort and wrong wiring acceptance can be completed through equipment, the test process is simplified, the test cost is reduced, and missort and wrong wiring rapid troubleshooting is achieved.

Description

Technical Field

[0001] This invention relates to the field of power monitoring technology, specifically to a terminal and method for accepting cross-connection and misconnection issues. Background Technology

[0002] With rapid economic development and increasing societal demand for electricity, the scale of the power system is constantly expanding. Broadband carrier data acquisition has achieved a coverage rate of over 90% in the State Grid's low-voltage data acquisition system. Currently, the State Grid employs various methods to investigate cross-metering issues, such as confirming meter correspondence through traditional methods like switching on and off the circuit breaker, testing meter correspondence using a multimeter via a short-circuit method, and determining meter correspondence by observing load changes recorded by the load concentrator in the user's home. While these methods differ, they suffer from problems such as high workload, complex equipment installation, and the inability to completely prevent cross-metering.

[0003] Cross-regulation investigation: This involves the power company verifying whether the actual correspondence between electricity meters and users matches the user records in the power company's distribution area. When cross-regulation occurs, it can lead to incorrect payments, directly harming the economic rights of low-voltage users, causing serious complaints, and requiring negotiation for supplementary payments or refunds, severely impacting the power company's service quality. Therefore, a simple and effective method is needed to investigate cross-regulation.

[0004] Existing methods for cross-household verification: Existing technologies disclose two cross-household verification methods disclosed in patents, "Patent No. CN201510606891.X Household meter relationship identification device and method" and "Patent No. CN202310044977.2 A household meter relationship identification method and identification device". These methods require the installation of multiple devices, are cumbersome, have poor adaptability, and require high equipment costs.

[0005] With the widespread application of broadband carrier communication technology in low-voltage distribution areas, this invention provides convenience for obtaining necessary data and improves usability. The present invention, a device and method for accepting cross-connection and miswiring, solves the problems of cumbersome installation and poor adaptability of existing technologies. Only one device needs to be connected, which improves the efficiency of cross-connection investigation, saves manpower and material costs, and eliminates cross-connection problems. Summary of the Invention

[0006] The purpose of this invention is to provide a device and method for inspecting cross-connections and incorrect wiring, which can quickly troubleshoot cross-connections for newly installed and existing users, and quickly troubleshoot incoming and outgoing lines of electricity meters. The device is simple to use, and a single device can achieve the purpose, improving testing efficiency and reducing troubleshooting costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a device for accepting cross-connection and miswiring, including a load generation module, a meter reading module, a control module, a communication module, and a display module.

[0008] The control module is connected to the load generation module, meter reading module, communication module and display module respectively.

[0009] The meter reading module is connected to the user's power line and communicates with the electricity meter via power line carrier wave to read the electricity meter data.

[0010] The load generation module connects to the user's power line and generates and shuts down the specified load according to the instructions of the control module.

[0011] The communication module is used to connect to the mobile phone and enable uplink and downlink communication.

[0012] The display module displays the test results for the user under test, the serial number of the user, and the incorrect wiring, according to the instructions from the control module.

[0013] The control module, when controlling the start and stop of the load generation module, simultaneously controls the meter reading module to read the positive active power data of the electricity meter. This allows the module to determine whether there is a cross-connection problem based on the difference in the positive active power data of the electricity meter, and to determine whether there is a reverse connection problem of the electricity meter's incoming and outgoing lines based on the positive and negative values ​​of the positive active power data of the electricity meter.

[0014] A communication module for a cross-connection and miswiring acceptance terminal uses Bluetooth communication to connect to a mobile phone. The mobile phone sends a pre-set user profile and test instructions for the transformer area, and the cross-connection and miswiring acceptance terminal returns the test results through the communication module.

[0015] Furthermore, a terminal for verifying cross-connection and miswiring is connected to a mobile phone, and the mobile phone application includes various application methods such as mobile web application, mobile APP, and mobile WeChat mini program.

[0016] Furthermore, in a cross-connection and miswiring acceptance terminal, when multiple users in the same area are simultaneously conducting cross-connection tests, the mobile phone sends instructions to each cross-connection and miswiring acceptance terminal. The control module controls the load generation module to generate different loads to prevent misjudgment. For example, if two adjacent users are cross-connecting and conducting tests at the same time, if the loads are the same, it is impossible to determine whether cross-connection has occurred. If different loads occur, it can be determined that a cross-connection problem has occurred.

[0017] Furthermore, a meter reading module for a cross-connection and misconnection acceptance terminal records carrier network information when the current transformer area completes automatic carrier network formation for the first time. When testing cross-connection issues with other users in the same transformer area, the currently recorded information is used. When testing in a different transformer area, the carrier frequency band and concentrator carrier module information are recorded again. When network formation fails in the same transformer area, the network information is re-acquired and networked, ensuring the meter reading success rate.

[0018] On the other hand, the use of a cross-connection and miswiring acceptance terminal for cross-connection and miswiring acceptance includes an acceptance method comprising the following steps: S1. After the cross-connection and misconnection acceptance terminal is powered on, the mobile phone sends the pre-set station area file to the acceptance terminal. S2. Based on the user's address information displayed on the mobile phone or the cross-connection and miswiring acceptance terminal display module, enter the user's home socket and insert the cross-connection and miswiring acceptance terminal. After the S3, serial household and misconnection acceptance terminal is inserted into the user's home, the meter reading module automatically listens to and obtains the carrier network information of the distribution area, including the carrier frequency band and concentrator carrier module information, and forms a network according to the user's electricity meter carrier module recorded in the distribution area file sent by the mobile phone.

[0019] S4. After the network is completed, the household and misconnection acceptance terminal control module issues instructions to control the load generation module to generate the specified load, and at the same time controls the meter reading module to automatically read the current positive active power data of the electricity meter.

[0020] After the S5 household and misconnection acceptance terminal meter reading module obtains the electricity meter data, the control module issues a command to control the load generation module to shut down, and simultaneously reads the current positive active power data of the electricity meter again.

[0021] S6. After the terminal obtains two sets of positive active power data, it calculates the absolute value of the difference and compares it with the load generated by the load generation module. If they match, there is no cross-connection; if they do not match, there is cross-connection. Simultaneously, it judges whether there is a problem with reverse connection of incoming and outgoing lines based on the positive and negative values ​​of the positive active power. A negative value indicates reverse connection of incoming and outgoing lines, while a positive value indicates correct wiring.

[0022] After adopting the above technical solution, the beneficial effects of the present invention compared with the prior art are as follows: This invention requires only one device to complete the household meter acceptance test, and can be tested by multiple people simultaneously and even without a network. It solves the problems of cumbersome operation and heavy workload that required multiple devices for household meter testing in the past, improves the efficiency of investigation, and can adapt to various network environments. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the modules of a serial household and miswiring acceptance terminal in this invention.

[0025] Figure 2 This is a schematic diagram illustrating the steps of a method for accepting cross-connections and incorrect wiring in this invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, the present invention provides a terminal for accepting cross-connection and miswiring, including a load generation module, a meter reading module, a control module, a communication module, and a display module.

[0028] The control module is connected to the load generation module, meter reading module, communication module and display module respectively.

[0029] The meter reading module is connected to the user's power line and communicates with the electricity meter via power line carrier. Specifically, it forms a network with the electricity meter carrier module via power line carrier and sends instructions to read the electricity meter data.

[0030] The load generation module connects to the user's power line and generates and shuts down the specified load according to the instructions of the control module.

[0031] The communication module is used to connect to the mobile phone and enable uplink and downlink communication.

[0032] The display module displays the test results for the user under test, the serial number of the user, and the incorrect wiring, according to the instructions from the control module.

[0033] The control module, when controlling the start and stop of the load generation module, simultaneously controls the meter reading module to read the positive active power data of the electricity meter. This allows the module to determine whether there is a cross-connection problem based on the difference in the positive active power data of the electricity meter, and to determine whether there is a reverse connection problem of the electricity meter's incoming and outgoing lines based on the positive and negative values ​​of the positive active power data of the electricity meter.

[0034] The communication module of the cross-connection and miswiring acceptance terminal uses a local communication mode to connect to the mobile phone. The local communication mode includes Bluetooth, wireless and other connection methods. The mobile phone sends the pre-set user files and test instructions for the transformer area. The cross-connection and miswiring acceptance terminal returns the test results through the communication module. Furthermore, the mobile phone can also connect to the main station to realize real-time transmission of test results and real-time display of test progress. This design can ensure that cross-connection investigation can be carried out regardless of whether there is a 4G network.

[0035] On the other hand, a serial connection and miswiring acceptance terminal connects to a mobile phone. The mobile phone application includes various application methods such as mobile web application, mobile APP, and mobile WeChat mini program. The mobile phone application calls the mobile phone's Bluetooth or other wireless connection methods to communicate with the serial connection and miswiring acceptance terminal.

[0036] Furthermore, when multiple users in the same area are simultaneously conducting cross-connection and miswiring acceptance tests, the mobile phone sends instructions to each cross-connection and miswiring acceptance terminal. The control module controls the load generation module to generate different loads to prevent misjudgment. For example, if two adjacent users are cross-connecting and conducting tests at the same time, if the loads are the same, it is impossible to determine whether cross-connection has occurred. If different loads occur, it can be determined that a cross-connection problem has occurred.

[0037] Furthermore, when the meter reading module completes automatic carrier networking for the first time in the current distribution area, it automatically records the carrier networking information of the distribution area, including carrier frequency band and concentrator carrier module information. When testing for cross-connection issues with other users in the same distribution area, the currently recorded information is used. When testing in a different distribution area, the carrier frequency band and concentrator carrier module information are recorded again. For broadband carrier cross-connection issues, when a networking failure occurs during the test, the module automatically reacquires the networking information, including switching frequency bands and searching for concentrator carrier module information, and re-connects the network for testing to ensure a high test success rate.

[0038] like Figure 2 As shown, a method for accepting cross-connections and incorrect wiring includes the following steps: S1. After the cross-connection and misconnection acceptance terminal is turned on, the mobile phone sends the pre-set transformer area file to the acceptance terminal. The transformer area file is provided by the power supply company and includes the electricity meter asset number and user address. When reading the user's electricity bill and verifying cross-connection, this file shall prevail.

[0039] S2. Based on the user's address information displayed on the mobile phone or terminal, enter the user's home socket and insert the terminal to verify cross-connection and incorrect wiring.

[0040] After the S3 terminal for accepting cross-connection and incorrect wiring is inserted into the user's home, the meter reading module automatically listens to and obtains the carrier network information of the distribution area, including the carrier frequency band, concentrator carrier module information, etc., and records the carrier module of the user's electricity meter in the distribution area archive. After the network is successfully established, it can issue instructions to read the electricity meter data.

[0041] S4. After the network is completed, the household and misconnection acceptance terminal control module issues instructions to control the load generation module to generate the specified load, and at the same time controls the meter reading module to automatically read the current positive active power data of the electricity meter.

[0042] After the S5 household and misconnection acceptance terminal meter reading module obtains the electricity meter data, the control module issues a command to control the load generation module to shut down, and simultaneously reads the current positive active power data of the electricity meter again.

[0043] S6. After the terminal obtains two sets of positive active power data from the electricity meter, it calculates the absolute value of the difference and compares it with the load generated by the load generation module. If they match, there is no cross-connection; if they do not match, there is cross-connection. Simultaneously, it determines whether there is a reverse connection problem between the incoming and outgoing lines of the electricity meter based on the positive and negative values ​​of the current and power data. A negative value indicates a reverse connection, while a positive value indicates correct wiring.

[0044] To illustrate the above technical solution more clearly, the following example is provided: After receiving the task of troubleshooting door-to-door issues, the staff turns on the door-to-door and miswiring verification terminal. A pre-set transformer area file is sent to the terminal via mobile phone. The staff then proceeds to the designated transformer area for testing. Following the instructions on the mobile phone or the verification terminal's display module, they go to the designated user's home and insert the verification terminal. To improve testing efficiency, user guidance is generally used from high to low floors. For example, if the transformer area has 18 floors, testing starts from the 18th floor. Users can also choose to start testing from the bottom floor. If the user is instructed to test 1801, the tester enters the 1801 apartment and inserts the verification terminal. The acceptance terminal meter reading module automatically obtains the current carrier frequency band and concentrator carrier module information of the transformer area, and forms a network with the corresponding electricity meter asset number in the 1801 transformer area file. After the network is completed, the acceptance terminal control module controls the load generation module to start and control the generation of a specified load current of 5A. At the same time, the acceptance terminal control module controls the meter reading module to read the current positive active power of the electricity meter. At this time, the positive or negative value of the positive active power can be used to determine whether there is a reverse connection of the incoming and outgoing lines of the electricity meter. If the active power is positive, the connection of the incoming and outgoing lines of the electricity meter is normal. If the active power is negative, the connection of the incoming and outgoing lines of the electricity meter is abnormal. After the meter data is read, the control module shuts down the load generation module. Then, the forward active power data of the meter is read again. The absolute value of the difference between the two readings is compared with the load generated by the load generation module to determine if cross-connection has occurred. If the difference in active power before and after load generation does not match the load generated by the load generation module, cross-connection has occurred. If the two data points match, cross-connection has not occurred. The test results are simultaneously displayed on the cross-connection and incorrect wiring acceptance terminal, guiding the test personnel to the next household for testing until the test is completed. Furthermore, when households 1801 and 1802 are tested simultaneously, the acceptance terminal control module controls the load generation module to generate different load currents respectively. For example, the acceptance terminal generates a load current of 5A in household 1801 and a load current of 3A in household 1802. This ensures that when households 1801 and 1802 are tested simultaneously and cross-connection issues occur, the difference can be distinguished based on the load size.

[0045] In the process of checking households in low-voltage distribution areas, it is common to check the correspondence between meters by opening and closing switches for each household, and to install multiple devices for checking households. This process wastes manpower and resources, and is inefficient. Finding a way to prevent cross-connection issues is one of the major problems that plague grassroots power supply companies. This invention provides a terminal and method for checking cross-connection and incorrect wiring. Staff only need to go to the household to insert the terminal, eliminating the need to install multiple devices in the distribution area. This simplifies the cross-connection process, avoids user complaints, and ensures the correct correspondence between meters.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A terminal for checking and accepting wrong connections of households, characterized in that: It includes load generation module, meter reading module, control module, communication module and display module; The control module is respectively connected to the load generation module, the meter reading module, the communication module and the display module; The meter reading module is connected to the user's power line, communicates with the electric energy meter through the power line carrier, and reads the electric energy meter data; The load generation module is connected to the user's power line and generates and shuts down the specified load according to the instruction of the control module; The communication module is used to connect to a mobile phone to achieve uplink and downlink communications; The display module displays the acceptance results of the tested users, inter-user connections and wrong wiring according to the instructions of the control module; Among them, when the control module controls the start and stop of the load generation module, it synchronously controls the meter reading module to read the positive active power data of the electric energy meter, so that it can be judged whether there is a problem of cross-household connection based on the difference of the positive active power data of the electric energy meter, and whether there is a problem of reverse connection of the electric energy meter's input and output lines based on the positive and negative values ​​of the electric energy meter's positive active power data.

2. A terminal for checking and accepting inter-household and wrong wiring according to claim 1, characterized in that: The communication module is connected to the mobile phone in a local communication mode, and the mobile phone sends a preset area user profile and a test instruction, and the inter-tenant and wrong wiring acceptance terminal returns the test result through the communication module.

3. A terminal for checking and accepting inter-household and wrong wiring connection according to claim 1, characterized in that: When multiple users in the same area conduct a household-to-household test at the same time, the mobile phone sends instructions to each household-to-household and wrong wiring acceptance terminal, and the control module controls the load generation module to generate different loads to prevent misjudgment.

4. A terminal for checking and accepting inter-household and wrong wiring according to claim 1, characterized in that: The meter reading module records the carrier networking information of the current area when the automatic carrier networking is completed for the first time. When testing the problem of other users in the same area, the current recorded information is used. When changing the area for testing, the network is re-established and the carrier frequency band and concentrator carrier module information are recorded.

5. A method for accepting and checking inter-connection of households and wrong wiring, using an acceptance terminal for accepting and checking inter-connection of households and wrong wiring as claimed in any one of claims 1 to 4, characterized in that: The method for accepting and checking inter-connection of households and wrong wiring comprises the following steps: S1, the mobile phone sends the station area file to the one-to-one and wrong wiring acceptance terminal, and the one-to-one and wrong wiring acceptance terminal uses the file to perform the one-to-one verification during the one-to-one verification; S2, according to the display module of the terminal for checking and accepting household connections and wrong wiring, the user's address information is displayed, the user enters the socket in the user's home and plugs into the terminal for checking and accepting household connections and wrong wiring; S3, after the said one kind of inter-household and wrong wiring acceptance terminal is inserted into the user's home, the said meter reading module automatically monitors and obtains the information of the carrier frequency band of the substation area and the carrier module of the concentrator, and records the network of the user's electric energy meter carrier module with the substation area file; S4, after the network of the meter reading module is completed, the control module sends instructions to control the load generation module to generate a specified load, and at the same time controls the meter reading module to automatically read the forward active power data of the electric energy meter; S5. After the meter reading module of the terminal for acceptance of inter-connection and wrong wiring obtains the electric energy meter data, the control module issues an instruction to control the load generation module to shut down, and synchronously reads the forward active power data of the electric energy meter again; S6. After the control module of the terminal for acceptance of inter-household connection and wrong wiring obtains the forward active power data of the electric energy meter twice, it judges whether there is inter-household connection based on whether the difference of the forward active power data before and after the load occurs is consistent with the load occurrence. If the data difference is consistent with the load, there is no inter-household connection; if the data difference is inconsistent with the load, there is inter-household connection.

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