Checking device for meter-user relationship

Abstract

The invention provides a checking device for meter-household relations, and the device comprises a householder end device; the householder end equipment is inserted into a socket of the householder end and is respectively connected with a live wire and a zero wire of the home-entry wire; judging whether a live wire and a zero wire of a home-entry wire connected with the home-entry terminal equipment are wrongly connected or not according to whether the home-entry terminal equipment receives the power supply or not; when power supply is received, a coding signal corresponding to the householder end is sent to the meter box end equipment; a meter box end device; the meter box end equipment is connected to a meter box end corresponding to the householder end, is connected with a live wire and a zero wire of a householder in columns, and is used for decoding the received coded signal, judging whether the household wire is wrongly connected or not according to a decoding result, monitoring a direct current value of the householder end, and if the direct current value exceeds a set current value, sending the received coded signal to the householder end; and if yes, judging that electric leakage or short circuit exists. The device is small in size and convenient to use, can reduce the working intensity of operators when a large number of home-entry wires are checked, and is long in working time; and one person can finish meter user checking and troubleshooting independently, so that the troubleshooting time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of power system automation, and in particular to a device for checking the relationship between a meter and a user. Background Art

[0002] With the construction and use of a large number of commercial houses, the distribution method has also been improved. Most of the meter boxes are concentrated in one meter box cabinet, which is some distance away from the user. Therefore, it is easy to connect the wires from the meter to different users' homes, resulting in the mismatch between the meter and the household, which leads to inaccurate electricity charges for users or excessive electricity charges for users. At the same time, the L and N lines of two households may be cross-used, which will also lead to errors in electricity billing. At present, the household inspection method mostly uses the power carrier method for verification, which requires the cooperation of two people. At the same time, due to the interference signal of the wire, it cannot be 100% confirmed, and the efficiency is low. In addition, the equipment is large and bulky, and the labor intensity of the operators is high; at the same time, the test results are inaccurate and need to be confirmed repeatedly; it is impossible to judge the insulation performance of the circuit, and it is impossible to judge the connection method of L and N lines. Summary of the invention

[0003] The purpose of the present invention is to provide a device for checking the table-household relationship to solve the technical problems of the existing method.

[0004] On the one hand, a device for checking the relationship between a table and a user is provided, comprising:

[0005] The householder-end device; the householder-end device is plugged into the socket of the householder-end and connected to the live wire and the neutral wire of the household line respectively; according to whether the householder-end device receives power, it is determined whether the live wire and the neutral wire of the household line connected to it are connected incorrectly; when power is received, a coded signal corresponding to the householder-end is sent to the meter box-end device;

[0006] Meter box end device; the meter box end device is connected to the meter box end corresponding to the householder end and is separately connected to the householder's live wire and neutral wire, and is used to decode the received coded signal, determine whether the household line is connected incorrectly based on the decoding result, and monitor the DC current value of the householder end. If the DC current value exceeds the set current value, it is determined that there is a leakage or short circuit.

[0007] Preferably, the householder-end device at least includes a shell, a circuit board is arranged in the shell, and at least a control MCU is arranged on the circuit board. The control MCU is used to store the coded signal corresponding to the householder-end, and the coded signal is a unique code representing the identity of the householder-end.

[0008] Preferably, a communication antenna is also provided in the shell, and one end of the communication antenna passes through the shell for communication transmission with the meter box terminal device.

[0009] Preferably, a pair of retractable pins are also provided on the outer wall of the shell, and the pins can be inserted into a socket and receive power from the householder end.

[0010] Preferably, the meter box end device includes at least a shell, in which at least a control circuit board, an antenna and a battery pack are arranged, the control circuit board is respectively connected to the antenna and the battery pack, the antenna is used for communication with the householder end device, and the battery pack is used to power the control circuit board.

[0011] Preferably, the control circuit board at least includes a wireless receiving module, an MCU control module, and a current detection module; the wireless receiving module is used to decode the received coded signal; the current detection module is used to detect the DC current value consumed by the household end; the MCU control module is used to judge the wiring condition according to the decoded coded signal; and judge whether there is a leakage or short circuit according to the detected DC current value.

[0012] Preferably, the control circuit board also includes a charging module, a digital tube display module, and a voltage stabilizing module; the charging module is used to charge the battery pack; the digital tube display module is used to display the received digital signal, and the digital signal at least includes the decoded number of the household owner's terminal.

[0013] Preferably, the meter box end device further comprises a pair of external wire clamps, one end of the wire clamp is connected to the battery pack via a line, and the wire clamp is used to respectively connect the live wire and the neutral wire of the household line.

[0014] Preferably, one end of the antenna passes through the housing for communication transmission with the householder-end device.

[0015] Preferably, it also includes a charging port connected to the charging module for charging the battery pack.

[0016] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0017] The device for checking the relationship between meters and households provided by the present invention is small in size and easy to use. When checking a large number of household lines, it can reduce the workload of operators and prolong the working time of the equipment. Only one person is needed to complete the meter-household verification and checking independently, thus shortening the checking time. The L and N lines crossing the household can be calibrated and checked at the same time. The open circuit, short circuit and insulation strength of the L and N lines can be intermittently judged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0019] Figure 1 Schematic diagram of a householder terminal device in an embodiment of the present invention.

[0020] Figure 2 Schematic diagram of a householder terminal device in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of a meter box terminal device in an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of a meter box terminal device in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 4 FIG. 1 is a schematic diagram of an embodiment of a device for checking a table-user relationship provided by the present invention. In this embodiment, the device includes:

[0025] The householder-end device 1; the householder-end device 1 is plugged into the socket of the householder-end and connected to the live wire and the neutral wire of the household line respectively; whether the live wire and the neutral wire of the household line connected to the householder-end device 1 are connected incorrectly is determined according to whether the householder-end device 1 receives power; when power is received, a coding signal corresponding to the householder-end is sent to the meter box-end device; it can be understood that the householder-end device 1 is conveniently and quickly plugged into the householder's socket through a foldable two-pin plug, and the installation is completed. If the householder's room is not equipped with a socket, the plug adapter clip line is used, and the alligator clip is clamped on the L and N lines of the switch control box of the household line. Each MCU of different householders has a built-in code, such as 101, 102-301, 302, etc. The built-in number of the MCU transmits the signal through the antenna 5 through the wireless transmission module. The householder-end device 1 does not have a power supply battery. The power supply of the householder-end is output by the battery at the meter box end through the L and N lines. The battery wire clamp 7 at the disguised end is clamped on the household L and N lines, and the householder-end device 1 connected to the line has power. Therefore, if the L and N lines of the household line are crossed incorrectly, the householder-end device is not powered and cannot transmit signals, and the fault of the wrong line can be found. Similarly, if the household wiring is not connected in accordance with the left zero and right live method, the householder end cannot be powered either, and these wiring faults can also be found. If the L and N lines are broken, the householder-end device 1 is also not powered, and the broken circuit fault from the meter box end to the householder end is also found out through a simple DC power supply method. The circuit board 3 of the householder-end device 1 is provided with a power supply reverse connection protection circuit to prevent the reverse connection of the line from causing the control board.

[0026] In one embodiment, the householder terminal device 1 at least includes a housing, a circuit board 3 is arranged in the housing, and at least one control MCU is arranged on the circuit board 3, and the control MCU is used to store the coding signal corresponding to the householder terminal, and the coding signal is a unique code indicating the identity of the householder terminal. A printed circuit board 3 is built into the housing of the householder terminal, and a control MCU is arranged on the circuit board 3, and each MCU of different householder terminals has a built-in code, such as 101, 102-301, 302, etc.

[0027] A communication antenna 2 is also arranged in the housing, one end of which passes through the housing for communication transmission with the meter box end device. A pair of retractable pins 4 are also arranged on the outer wall of the housing, and the pins 4 can be inserted into a socket and receive power from the household end.

[0028] Meter box end device; the meter box end device is connected to the meter box end corresponding to the household end and is connected to the household end's live wire and neutral wire separately, and is used to decode the received coded signal, determine whether the household line is connected incorrectly according to the decoding result, and monitor the DC current value of the household end. If the DC current value exceeds the set current value, it is determined that there is a leakage or short circuit. It can be understood that the meter box end device is a wireless information receiving device, with an external antenna 5, a circuit board 3 in the shell, and a set of built-in lithium battery packs 11. The built-in battery pack 11 supplies power to the circuit board 3, and outputs the power to the household end's L and N lines through the external wire clamp 7.

[0029] In one embodiment, the meter box terminal device at least includes a shell, in which at least a control circuit board 9, an antenna 5 and a battery pack 11 are arranged, and the control circuit board 9 is respectively connected to the antenna 5 and the battery pack 11, the antenna 5 is used for communication with the householder terminal device 1, and the battery pack 11 is used to power the control circuit board 9. The control circuit board 9 at least includes a wireless receiving module, an MCU control module, and a current detection module; the wireless receiving module is used to decode the received coded signal; the current detection module is used to detect the DC current value consumed by the householder terminal; the MCU control module is used to judge the wiring condition according to the decoded coded signal; and judge whether there is leakage or short circuit according to the detected DC current value. The control circuit board 9 also includes a charging module, a digital tube display module 6, and a voltage stabilizing module; the charging module is used to charge the battery pack 11; the digital tube display module 6 is used to display the received digital signal, and the digital signal at least includes the decoded number of the householder terminal. It can be understood that the meter box end device control circuit board 9 is composed of a charging circuit, a wireless receiving module, an MCU control module, a current detection circuit, a digital tube display module 6, and a voltage stabilizing circuit. The wireless receiving module decodes the received model, the MCU reads the decoded signal, and the received digital signal is intuitively displayed through the digital tube display module 6. This group of numbers represents the number of the household head end. By observing the household head number of the meter, it can be determined whether the household line is connected incorrectly. At the same time, the DC current consumed by the household head end is determined by the current detection circuit. If the current value exceeds the set value, it means that L and N are leaking to the ground, and the leakage and short circuit of L and N can be found.

[0030] In one embodiment, the meter box end device further includes a pair of external wire clamps 7, one end of the wire clamp 7 is connected to the battery pack 11 through a line 8, and the wire clamp 7 is used to connect the live wire and the neutral wire of the household line respectively. One end of the antenna 5 passes through the housing for communication transmission with the household end device 1. It also includes a charging port 10, which is connected to the charging module and is used to charge the battery pack 11.

[0031] In a specific embodiment, the household inspection is to first connect the corresponding numbered householder end device 1 to the householder's socket one by one according to the number of households on the floor, and the number of householder end devices 1 is inserted at one time according to the number of meters in each meter box. After the householder's equipment is installed, the meter box end device clamps the battery output wire clamp 7 on the L and N lines of the meter end to power the householder end device 1. After the householder end is powered, the built-in number is sent through the wireless transmission circuit through the control circuit board 9. After the meter box end device receives the code, it displays the householder end number. By observing the number, check whether it is consistent with the meter household number of the clamped line, thereby completing the meter household relationship check. Through the power supply circuit of the wired cable, a closed loop of detection is formed with the wireless signal transmission back. By checking the number of the user end and the clamping number of the meter box end, it can be found whether there is a problem with the household line, which is simple and convenient. At the same time, it can also detect whether the household line is installed in a standardized manner, whether the line has short circuit, open circuit, poor insulation performance, and other problems.

[0032] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0033] The device for checking the relationship between meters and households provided by the present invention is small in size and easy to use. When checking a large number of household lines, it can reduce the workload of operators and prolong the working time of the equipment. Only one person is needed to complete the meter-household verification and checking independently, thus shortening the checking time. The L and N lines crossing the household can be calibrated and checked at the same time. The open circuit, short circuit and insulation strength of the L and N lines can be intermittently judged.

[0034] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A device for checking the relationship between a table and a user, characterized in that: include: Household terminal equipment; The householder-end device is plugged into the householder-end socket and connected to the live wire and the neutral wire of the household line respectively; According to whether the householder-end device receives power, it is determined whether the live wire and the neutral wire of the household line connected to it are connected incorrectly; when power is received, a coding signal corresponding to the householder-end is sent to the meter box-end device; Meter box end device; the meter box end device is connected to the meter box end corresponding to the householder end and is separately connected to the householder's live wire and neutral wire, and is used to decode the received coded signal, determine whether the household line is connected incorrectly based on the decoding result, and monitor the DC current value of the householder end. If the DC current value exceeds the set current value, it is determined that there is a leakage or short circuit.

2. The device according to claim 1, characterized in that The householder-end device at least includes a shell, a circuit board is arranged in the shell, and at least a control MCU is arranged on the circuit board. The control MCU is used to store a coding signal corresponding to the householder-end, and the coding signal is a unique code representing the identity of the householder-end.

3. The device according to claim 2, characterized in that A communication antenna is also arranged in the shell, and one end of the communication antenna passes through the shell for communication transmission with the meter box terminal device.

4. The device according to claim 3, characterized in that A pair of retractable pins are also arranged on the outer wall of the shell, and the pins can be inserted into the socket to receive power supply from the household end.

5. The device according to claim 1, characterized in that The meter box end device includes at least a shell, in which at least a control circuit board, an antenna and a battery pack are arranged. The control circuit board is connected to the antenna and the battery pack respectively. The antenna is used for communication with the householder end device, and the battery pack is used for powering the control circuit board.

6. The device according to claim 5, characterized in that The control circuit board at least includes a wireless receiving module, an MCU control module, and a current detection module; the wireless receiving module is used to decode the received coded signal; the current detection module is used to detect the DC current value consumed by the household end; the MCU control module is used to judge the wiring condition according to the decoded coded signal; and judge whether there is a leakage or short circuit according to the detected DC current value.

7. The device according to claim 6, characterized in that The control circuit board also includes a charging module, a digital tube display module, and a voltage stabilizing module; the charging module is used to charge the battery pack; the digital tube display module is used to display the received digital signal, and the digital signal at least includes the decoded number of the household owner's terminal.

8. The device according to claim 5, characterized in that The meter box end device also includes a pair of external wire clamps, one end of which is connected to the battery pack through a line, and the wire clamp is used to respectively connect the live wire and the neutral wire of the household line.

9. The device according to claim 5, characterized in that One end of the antenna passes through the shell and is used for communication transmission with the householder terminal device.

10. The device according to claim 5, characterized in that It also includes a charging port connected to the charging module for charging the battery pack.

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