Intelligent electricity larceny prevention metering junction box

By installing voltage and current sensors in the junction box of the power meter, the power is monitored in real time and remote monitoring is carried out through cloud servers and mobile devices, the problem of discovery of power theft is solved, the effect of anti-power theft is improved, and evidence is provided support.

CN222439568UActive Publication Date: 2025-02-07CHIFENG POWER SUPPLY OF NORTHEAST CHINA GRID +2
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Patent Information

Application Number
CN202420718124.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-02-07
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

In power systems, the phenomenon of power theft of privately connected wires often occurs, resulting in the electricity measured by the power meter different from the actual loss of electricity, causing national property losses.

Method used

An intelligent anti-theft metering junction box is designed to detect power in real time by installing voltage and current sensors at the inlet and outlet terminals, and remotely monitor it through cloud servers and mobile devices to detect power theft in a timely manner.

Benefits of technology

Real-time monitoring of voltage and current in the electrical energy meter is realized, timely detection of electricity theft phenomenon, improving the anti-powered effect, and recording unboxing portraits and operation videos through micro cameras to provide evidence support.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric quantity metering, in particular to an intelligent electricity larceny prevention metering junction box, which comprises a main box body, two groups of fixing columns are symmetrically fixed on two sides of two ends of the main box body, a box cover is fixed on two sides of the main box body through screws respectively, screw holes matched with the fixing columns are formed at two ends of the box cover, and the fixing columns are fixed on the main box body through screws. And a plurality of three-phase electric wiring units are fixed in the main box body along the length direction. The metering junction box has the beneficial effects that the voltage sensor and the current sensor are arranged in the metering junction box, so that the voltage and the current of the input end and the output end of a circuit can be detected, and electricity stealing can be found in time; the voltage sensor and the current sensor are installed at one side far away from the wiring terminal and are protected by the protection box, so that the concealment is improved, a person installing an electricity larceny line can be prevented from discovering the electricity larceny line, and the electricity larceny prevention effect is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electricity metering, in particular to an intelligent anti-electricity theft metering junction box. Background Art

[0002] As a mandatory verification metering device, it is most important to ensure the accuracy of the metering. According to the metering regulations, the metering device must be regularly verified on site, supervised and sampled, and rotated periodically. In the power system, the meter and the terminal share a joint junction box. The joint junction box is also called the energy metering joint junction box. As an important part of the metering secondary circuit, the joint junction box is widely used in the power industry. Its function is to connect the secondary line led out of the transformer to the voltage and current terminals of the box in series and parallel, and then connect it to the voltage and current terminals of the meter to complete the test or verification of various projects.

[0003] In actual use, theft of electricity by privately connecting wires often occurs by modifying the wiring position in the junction box. After the theft of electricity is connected, the voltage connection board will be disconnected, resulting in voltage short circuit and undervoltage or short circuit and undercurrent at the current connection board. After the theft of electricity, the amount of electricity measured by the energy meter is different from the actual amount of electricity loss, causing national property losses. Therefore, a junction box is needed that can monitor the voltage and current in the energy meter through the metering junction box in real time, so that the staff can detect the theft of electricity in time without disassembling the junction box. Utility Model Content

[0004] The utility model proposes an intelligent anti-electricity theft metering junction box to solve the above problems. The utility model collects the voltage and current of the incoming and outgoing terminals to timely discover the electricity theft phenomenon.

[0005] The technical solution of the utility model is achieved in this way:

[0006] An intelligent anti-electricity theft metering junction box comprises a main box body, two sets of fixing columns are symmetrically fixed on both sides of the two ends of the main box body, a box cover is fixed on each side of the main box body by screws, screw holes matching the fixing columns are formed at both ends of the box cover, a plurality of three-phase electrical wiring units are fixed in the length direction of the main box body, wire threading holes matching the three-phase electrical wiring units are formed on the side walls on both sides of the main box body, the three-phase electrical wiring units comprise a voltage wiring unit, a current wiring unit and a neutral wiring unit separated by a partition, the voltage wiring unit comprises a dual-channel voltage wiring terminal installed on one side of the main box body, the voltage wiring terminals of the two channels are connected together by a voltage connecting plate, the voltage wiring terminals of the same channel are connected together by a voltage connecting plate fixed on the other side of the main box body, and the current wiring The unit includes three-channel current terminals, the current terminals of the three channels are connected together by two current connecting plates, and the current terminals of the same channel are connected together by a current connecting plate fixed on the other side of the main box body, the voltage connecting plate and the current connecting plate are separated by a partition, and two protection boxes are fixed on one side of the main box body where the voltage connecting plate is installed, and the protection box is fixed with an input voltage sensor, an output voltage sensor, an input current sensor and an output current sensor corresponding to the voltage wiring unit and the current wiring unit, the input voltage sensor and the output voltage sensor are respectively installed at the input and output ends of the voltage wiring unit, and the input current sensor and the output current sensor are respectively installed at the input and output ends of the current wiring unit.

[0007] Furthermore, first card slots are formed on both side edges of the main box body, and second card slots matching the first card slots are formed on the inner wall of the box cover. Sealing rings are fixed in the first card slot and the second card slot through detachable connection.

[0008] Furthermore, a reinforcing boss is formed on the outer surface of the box cover at a position corresponding to the screw hole.

[0009] Furthermore, a composite wiring terminal is fixed to one side of the main box body where the input voltage sensor is installed, and the input voltage sensor, the output voltage sensor, the input current sensor, and the output current sensor are electrically connected to the composite wiring terminal.

[0010] Furthermore, two groups of cover opening memory buttons are symmetrically fixed on both sides of the main box body, each group includes two cover opening memory buttons, the cover opening memory buttons are arranged near the fixing column, and the cover opening memory buttons are electrically connected to the composite wiring terminal.

[0011] Furthermore, an electric control box is fixed to one side of the main box body on which the voltage connection board is installed, an integrated circuit board is fixed in the electric control box, a central processing chip, a terminal block, a communication module, a timing module, a storage module, and a positioner are fixed on the integrated circuit board, and the communication module, the timing module, the storage module, and the positioner are electrically connected to the central processing chip and the terminal block.

[0012] Furthermore, a backup power supply is fixed inside the electric control box, and the backup power supply is electrically connected to the central processing chip through a power management system.

[0013] Furthermore, two groups of four hidden installation boxes are symmetrically fixed at both ends of the main box body, a miniature camera is fixed in one of the hidden installation boxes, and the miniature camera is electrically connected to the wiring socket.

[0014] A method for monitoring electricity theft comprises the following steps:

[0015] Step 1: Data collection: collect the voltage and current values ​​of the input and output terminals of the junction box through the input voltage sensor, output voltage sensor, input current sensor and output current sensor, and obtain the voltage and current values ​​of the three-phase electricity of the energy meter at the same time, and transmit the data to the cloud server;

[0016] Step 2: Data comparison, Mode 1: Compare and calculate the difference between the input voltage value and the output voltage value, and the difference between the input current value and the output current value in the same channel. When the difference exceeds 20%, an alarm prompt is issued; Mode 2: Compare and calculate the difference between the input voltage value and the input current value in the same channel and the voltage value and current value of the corresponding channel of the electric energy meter. When the difference exceeds 20%, an alarm prompt is issued;

[0017] Step 3: Remote monitoring, access the cloud server through the APP installed on the mobile device, obtain the detected data and the location, time, and video data uploaded in the electrical control box of the junction box. When an electricity theft alarm occurs, quickly understand the location of the electricity theft and the information of the thief through the mobile device.

[0018] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: by installing a voltage sensor and a current sensor in the metering junction box, the voltage and current at the input and output ends of the circuit can be detected, so that electricity theft can be discovered in time; the voltage sensor and the current sensor are installed on the side away from the wiring terminals and protected by a protective box, which improves the concealment and can avoid being discovered by the person who installs the electricity theft line; the portrait information of the person who opens the electricity meter can be collected by a micro camera, and the time when the box cover is opened can be recorded to preserve evidence, which is convenient for tracking down the electricity theft person and improves the anti-electricity theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is the first exploded view of the metering junction box of the utility model;

[0021] Figure 2 This is the second exploded view of the metering junction box of the utility model;

[0022] Figure 3 This is a front view of the main box body of the metering junction box of the utility model;

[0023] Figure 4 This is a rear view of the main box body of the metering junction box of the utility model;

[0024] Figure 5 It is the wiring diagram of the metering junction box of the utility model;

[0025] Figure 6 It is a circuit structure block diagram of the utility model;

[0026] Figure 7 It is the wiring diagram of the metering junction box of the utility model;

[0027] Figure 8 This is the location diagram of the current connection board and voltage connection board in the power theft state.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Main box body; 2. Three-phase electrical connection unit; 21. Voltage connection unit; 211. Dual-channel voltage connection terminal; 212. Voltage connection board; 213. Voltage connection board; 22. Current connection unit; 221. Three-channel current connection terminal; 222. Current connection board; 223. Current connection board; 23. Neutral line connection unit; 3. Fixing column; 4. First card slot; 5. Sealing ring; 6. Box cover; 7. Second card slot; 8. Threading hole; 9. Reinforcement boss; 10. Screw hole; 11. Input voltage sensor; 12. Output voltage sensor; 13. Input current sensor; 14. Output current sensor; 15. Composite terminal block; 16. Protective box; 17. Cover opening memory button; 18. Electric control box; 181. Integrated circuit board; 182. Central processing chip; 183. Terminal block; 184. Communication module; 185. Timing module; 186. Storage module; 187. Positioner; 188. Backup power supply; 19. Hidden installation box; 20. Mini camera. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1-Figure 7As shown, an intelligent anti-theft electricity metering junction box includes a main box body 1, two sets of fixing columns 3 are symmetrically fixed on both sides of the two ends of the main box body 1, a box cover 6 is fixed on each side of the main box body 1 by screws, the main box body 1 and the box cover 6 are both made of high molecular polycarbonate material, screw holes 10 matching the fixing columns 3 are formed at both ends of the box cover 6, and the box cover 6 can be fixed to the main box body 1 by screws, a plurality of three-phase electrical wiring units 2 are fixed in the main box body 1 along the length direction, and threading holes 8 matching the three-phase electrical wiring units 2 are formed on the side walls of both sides of the main box body 1, and the three-phase electrical wiring units 2 include a voltage wiring unit 21 and a current wiring unit separated by a partition. 22 and neutral line wiring unit 23, the voltage wiring unit 21 has four groups, which are a, b, c, and N phases, corresponding to the four-phase voltage of the three-phase four-wire joint wiring box respectively, and the N phase is the neutral line (neutral line). The current wiring unit 22 has three groups, which are a, b, and c phases, corresponding to the three-phase current of the three-phase four-wire joint wiring box respectively. The voltage wiring unit 21 includes a dual-channel voltage wiring terminal 211 installed on one side of the main box body 1, and the voltage wiring terminals of the two channels are connected together through a voltage connecting plate 212. The voltage wiring terminals of the same channel are connected together through a voltage connecting plate 213 fixed on the other side of the main box body 1. The current wiring unit 22 includes The main box 1 includes three-channel current wiring terminals 221, and the current wiring terminals of the three channels are connected together through two current connecting plates 222. A partition is set between adjacent current connecting plates 222 to prevent the current connecting plates 222 from tilting and causing a short circuit. The current wiring terminals of the same channel are connected together through a current connecting plate 223 fixed on the other side of the main box body 1. Each independent current connecting plate 223 adopts a wiring form of one inlet hole and one outlet hole. The voltage connecting plate 213 and the current connecting plate 223 are separated by a partition. Two protection boxes 16 are fixed on one side of the main box body 1 where the voltage connecting plate 213 is installed. The protection box 16 is fixed with a voltage The wiring unit 21 and the current wiring unit 22 are provided with an input voltage sensor 11, an output voltage sensor 12, an input current sensor 13 and an output current sensor 14, respectively. The input voltage sensor 11 and the output voltage sensor 12 are installed at the input end and the output end of the voltage wiring unit 21, respectively. One end of the input voltage sensor 11 is electrically connected to the input end of the voltage connection plate 213 and the other end is fixed to the neutral wiring unit 23. One end of the output voltage sensor 12 is electrically connected to the output end of the voltage connection plate 213 and the other end is fixed to the neutral wiring unit 23. The model of the input voltage sensor 11 and the output voltage sensor 12 is WB V124S01-1, the input voltage sensor 11 and the output voltage sensor 12 can detect the voltage at the input end and the voltage at the output end of the voltage sensor 12, the input current sensor 13 and the output current sensor 14 are respectively installed at the input end and the output end of the current wiring unit 22, the input current sensor 13 and the output current sensor 14 are ES300C, and there is an inner hole in the ES300C sensor,During installation, the wire is passed through the inner hole and then fixed to the current connection plate 223. The input current sensor 13 and the output current sensor 14 use the magnetic induction principle to measure the current in the circuit. When there is no electricity theft, the voltage values ​​detected by the input voltage sensor 11 and the output voltage sensor 12 are the same. When the electricity thief steals electricity by voltage division, the voltage value detected by the output voltage sensor 12 will be smaller than the voltage value detected by the input voltage sensor 11. Similarly, when there is no electricity theft, the current values ​​detected by the input current sensor 13 and the output current sensor 14 are the same. When the electricity thief steals electricity by voltage division, the current value detected by the output current sensor 14 will be smaller than the current value detected by the input current sensor 13. By analyzing the data of the three groups of detections a, b, and c, it can be determined whether someone has stolen electricity.

[0032] In this embodiment, first card slots 4 are formed on both side edges of the main box body 1, and second card slots 7 matching the first card slots 4 are formed on the inner wall of the box cover 6. Sealing rings 5 ​​are fixed in the first card slots 4 and the second card slots 7 through a detachable connection. The height of the sealing ring 5 is greater than the sum of the heights of the first card slots 4 and the second card slots 7. By installing a sealing ring between the box cover 6 and the main box body 1, the sealing effect can be improved, and the elastic force of the sealing ring 5 can prevent the screws from loosening.

[0033] In this embodiment, a reinforcing boss 9 is formed on the outer surface of the box cover 6 at a position corresponding to the screw hole 10, so as to increase the strength of the screw installation position and prolong the service life.

[0034] In this embodiment, a composite wiring terminal 15 is fixed to one side of the main box body 1 on which the input voltage sensor 11 is installed. The input voltage sensor 11, the output voltage sensor 12, the input current sensor 13, and the output current sensor 14 are electrically connected to the composite wiring terminal 15. The composite wiring terminal 15 can be used to realize the collection of power supply lines and data lines of the input voltage sensor 11, the output voltage sensor 12, the input current sensor 13, and the output current sensor 14, which is convenient for wiring.

[0035] In this embodiment, two groups of cover opening memory buttons 17 are symmetrically fixed on both sides of the main box body 1, each group includes two cover opening memory buttons 17, and the cover opening memory buttons 17 are arranged at a position close to the fixing column 3. The two groups of cover opening memory buttons 17 correspond to the two box covers 6, and the cover opening memory buttons 17 are electrically connected to the composite wiring terminal 15. The cover opening memory buttons 17 can be used to record the status of the box cover 6. If the user removes the box cover 6 without authorization and tamperes with the wiring of the wiring box in the electric energy meter, the cover opening memory button 17 will automatically pop up after the external pressure applied by the box cover 6 is lost, thereby generating an electrical signal, and the signal processing device connected thereto will automatically record the event that the box cover 6 is removed, thereby more effectively preventing the user from removing the box cover 6 and tampering with the wiring.

[0036] Furthermore, an electric control box 18 is fixed to one side of the main box body 1 on which the voltage connection board 213 is installed, and an integrated circuit board 181 is fixed in the electric control box 18, and a central processing chip 182, a terminal block 183, a communication module 184, a timing module 185, a storage module 186, and a locator 187 are fixed on the integrated circuit board 181. The communication module 184, the timing module 185, the storage module 186, and the locator 187 are electrically connected to the central processing chip 182 and the terminal block 183. The model of the central processing chip 182 is D78F1166A, which is used for data and signal processing; the communication module 184 uses the ESP-07Wi-Fi module, which is The chip of the module is ESP8266, which uses a smaller package to package a 32-bit microprocessor and integrates Wi-Fi MAC / BB / RF / PA / LNA. The module supports the standard IEEE80211b / g / n protocol and a complete TCP / IP protocol stack. By using this module, developers can connect the designed system to the network. The communication module is used to transmit data to the cloud database via 4G / 5G, which is convenient for APP to access data. The model of the timing module 185 is a 555 timer, which is used for timing; the storage module 186 is used to buffer data, including data detected by the current and voltage sensors, and data started by the cover opening memory button. The model of the locator 187 is MAP76, which is used to determine the position of the junction box.

[0037] Furthermore, a backup power supply 188 is fixed inside the electrical control box 18, and the backup power supply 188 is electrically connected to the central processing chip 182 through a power management system. When a fault occurs and electric energy cannot be obtained from the electric energy meter, the backup power supply 188 can be started to continuously supply power to ensure that the electrical control box 18 can continue to work for a certain period of time, thereby ensuring the normal use of components such as the locator.

[0038] Furthermore, two groups of four hidden installation boxes 19 are symmetrically fixed at both ends of the main box body 1, and a miniature camera 20 is fixed in one of the hidden installation boxes 19. The miniature camera 20 is electrically connected to the wiring socket 183. The miniature camera 20 starts the motion detection mode, and does not record when the picture is still. The recording is turned on when there is an object moving or the light and shadow change. When someone opens the meter box of the electricity meter, it can automatically start to shoot the operator's portrait and record the operation process. The video content of the miniature camera 20 is stored in the storage module 186 and the video data is uploaded to the cloud through the communication module 184, including real-time video content and previously entered content, which is retained as evidence. The video content of the miniature camera 20 can be viewed through the mobile phone APP, which is convenient for timely determination of the identity of the electricity thief.

[0039] A method for monitoring electricity theft comprises the following steps:

[0040] Step 1: Data collection, using the input voltage sensor, output voltage sensor, input current sensor and output current sensor to collect the voltage values ​​Ua1, Ua2, Ub1, Ub2, Uc1, Uc2 and current values ​​Ia1, Ia2, Ib1, Ib2, Ic1, Ic2 of the input and output terminals of the junction box, and at the same time obtain the voltage values ​​Ua, Ub, Uc and current values ​​Ia, Ib, Ic of the three-phase electricity of the energy meter, and transmit the data to the cloud server;

[0041] Step 2: Data comparison,

[0042] Mode 1: Compare and calculate the difference between the input voltage and output voltage, and the difference between the input current and output current in the same channel, such as the difference between Ua1 and Ua2, the difference between Ub1 and Ub2, the difference between Uc1 and Uc2, the difference between Ia1 and Ia2, the difference between Ib1 and Ib2, and the difference between Ic1 and Ic2. When the difference exceeds 20%, an alarm will be issued.

[0043] Mode 2: Compare and calculate the difference between the input voltage and current values ​​in the same channel and the voltage and current values ​​of the corresponding channel of the electric energy meter, such as the difference between Ua1 and Ua, the difference between Ub1 and Ub, and the difference between Uc1 and Uc. When the difference exceeds 20%, an alarm will be issued.

[0044] Automatically calculate and compare data every 10-30 minutes, intelligent calculation, easy to find out the power theft phenomenon in time and alarm prompt;

[0045] Step 3: Remote monitoring, access the cloud server through the APP installed on the mobile device, obtain the detected data and the location, time, and video data uploaded in the electrical control box of the junction box. When an electricity theft alarm occurs, quickly understand the location of the electricity theft and the information of the electricity theft personnel through the mobile device, so as to find the location of the electricity theft and the electricity theft personnel in time and reduce the loss of electricity theft.

[0046] The working principle of the utility model is as follows: when in use, the lines are connected, and the detection data of the three groups of input voltage sensors 11, output voltage sensors 12, input current sensors 13, and output current sensors 14 are transmitted to the central processing chip 182, and the detection data are Ua1, Ua2, Ia1, Ia2, Ub1, Ub2, Ib1, Ib2, Uc1, Uc2, Ic1, and Ic2 respectively. The central processing chip 182 transmits the data to the cloud server by using the communication module 184, and uses the data processing module of the cloud server to calculate the difference between the input voltage sensor 11 and the output voltage sensor 12 in the same channel and the difference between the input current sensor 13 and the output current sensor 14 to determine whether someone is stealing electricity. At the same time, the values ​​Ua1, Ub1, and Uc1 detected by the three groups of input voltage sensors 11 are compared with the voltage values ​​Ua, Ub, and Uc of the electric energy meter or the three groups of input current sensors 13 are detected. The measured values ​​Ia1, Ib1, Ic1 are compared with the current values ​​of the energy meter Ia, Ib, Ic. If the difference is within the allowable error value, it means that the operation is normal. If the difference in the values ​​exceeds the set error value, it means that the user's energy meter is inaccurate. Through this data comparison, the measurement anomalies in front of and inside the energy meter can be accurately identified. Through the APP that can exchange data with the cloud database, the data can be remotely viewed on mobile devices (mobile phones / tablets, etc.) to understand whether electricity theft has occurred. At the same time, the location of the energy meter where electricity theft has occurred can also be understood through the APP, which is convenient for timely processing. In short, through the junction box and system, the face camera of the person who opens the box can be recorded when the energy meter box is opened, the unboxing video and the time when the junction box is opened can be recorded, and based on the comparison of multiple sets of voltage and current value data, it can be judged whether someone has privately modified the line to steal electricity after the energy meter box is opened, and the above data can be used to prove whether the electricity user has stolen electricity.

[0047] The circuit connection involved in the utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, and it belongs to the widely used existing technology.

[0048] Components not described in detail herein are prior art.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent anti-theft electricity metering junction box, comprising a main box body (1), two sets of fixing columns (3) are symmetrically fixed on both sides of the two ends of the main box body (1), a box cover (6) is fixed on each side of the main box body (1) by screws, and screw holes (10) matching the fixing columns (3) are formed at both ends of the box cover (6), a plurality of three-phase electrical wiring units (2) are fixed in the main box body (1) along the length direction, and threading holes (8) matching the three-phase electrical wiring units (2) are formed on the side walls of both sides of the main box body (1), characterized in that: The three-phase electrical wiring unit (2) comprises a voltage wiring unit (21), a current wiring unit (22) and a neutral wiring unit (23) separated by a partition. The voltage wiring unit (21) comprises a dual-channel voltage wiring terminal (211) mounted on one side of the main box body (1). The voltage wiring terminals of the two channels are connected together via a voltage connecting plate (212). The voltage wiring terminals of the same channel are connected together via a voltage connecting plate (213) fixed on the other side of the main box body (1). The current wiring unit (22) comprises a three-channel current wiring terminal (221). The current wiring terminals of the three channels are connected together via two current connecting plates (222). The current wiring terminals of the same channel are connected together via a current connecting plate (223) fixed on the other side of the main box body (1). The voltage connection plate (213) and the current connection plate (223) are separated by a partition plate. Two protection boxes (16) are fixed to one side of the main box body (1) on which the voltage connection plate (213) is installed. An input voltage sensor (11), an output voltage sensor (12), an input current sensor (13) and an output current sensor (14) corresponding to the voltage wiring unit (21) and the current wiring unit (22) are fixed in the protection box (16). The input voltage sensor (11) and the output voltage sensor (12) are respectively installed at the input end and the output end of the voltage wiring unit (21), and the input current sensor (13) and the output current sensor (14) are respectively installed at the input end and the output end of the current wiring unit (22).

2. The intelligent anti-electricity theft metering junction box according to claim 1 is characterized in that: The edges of both sides of the main box body (1) are formed with first card slots (4), the inner wall of the box cover (6) is formed with second card slots (7) matching the first card slots (4), and sealing rings (5) are fixed in the first card slots (4) and the second card slots (7) through a detachable connection.

3. The intelligent anti-electricity theft metering junction box according to claim 1 is characterized in that: A reinforcing boss (9) is formed on the outer surface of the box cover (6) at a position corresponding to the screw hole (10).

4. The intelligent anti-electricity theft metering junction box according to claim 1 is characterized in that: A composite wiring terminal (15) is fixed to one side of the main box body (1) on which the input voltage sensor (11) is installed, and the input voltage sensor (11), the output voltage sensor (12), the input current sensor (13), and the output current sensor (14) are electrically connected to the composite wiring terminal (15).

5. The intelligent anti-electricity theft metering junction box according to claim 4 is characterized in that: Two groups of cover opening memory buttons (17) are symmetrically fixed on both sides of the main box body (1), each group comprising two cover opening memory buttons (17), the cover opening memory buttons (17) being arranged at positions close to the fixing columns (3), and the cover opening memory buttons (17) being electrically connected to the composite wiring terminal (15).

6. The intelligent anti-electricity theft metering junction box according to claim 4 is characterized in that: An electric control box (18) is fixed to one side of the main box body (1) on which the voltage connection board (213) is installed. An integrated circuit board (181) is fixed inside the electric control box (18). A central processing chip (182), a wiring socket (183), a communication module (184), a timing module (185), a storage module (186), and a positioner (187) are fixed on the integrated circuit board (181). The communication module (184), the timing module (185), the storage module (186), and the positioner (187) are electrically connected to the central processing chip (182) and the wiring socket (183).

7. The intelligent anti-electricity theft metering junction box according to claim 6 is characterized in that: A backup power supply (188) is fixed inside the electric control box (18), and the backup power supply (188) is electrically connected to the central processing chip (182) through a power management system.

8. The intelligent anti-electricity theft metering junction box according to claim 6 is characterized by: Two groups of four hidden installation boxes (19) are symmetrically fixed at both ends of the main box body (1), a miniature camera (20) is fixed inside one of the hidden installation boxes (19), and the miniature camera (20) is electrically connected to the wiring seat (183).