Intelligent analysis type wiring terminal box and control system thereof

Abstract

The invention relates to the technical field of wiring terminal boxes, in particular to an intelligent analysis type wiring terminal box and a control system thereof.The intelligent analysis type wiring terminal box comprises the intelligent analysis type wiring terminal box and the control system used for controlling the wiring terminal box, and the intelligent analysis type wiring terminal box comprises a box body and a transparent protective cover; the box body is composed of a first main body, a second main body and a third main body which are sequentially connected, the first main body is provided with a wiring communication assembly, the second main body is an insulation board, and the third main body is provided with a monitoring acquisition assembly; the control system comprises a sampling unit, a comparison unit, a processing unit, a communication unit, an acquisition terminal and an acquisition background, and all the units cooperate to realize data sampling, comparison, processing and transmission. According to the invention, the accuracy of the metering device can be guaranteed, and the working pressure of line loss index governance improvement and electric quantity and electricity charge recovery by basic units can be reduced, so that the purpose of intelligent monitoring of the metering device is achieved.

Description

Technical Field

[0001] This invention relates to the field of terminal box technology, specifically an intelligent analytical terminal box and its control system. Background Technology

[0002] Terminal boxes, as key nodes in secondary metering circuits, are widely used in residential, commercial, and industrial users between electricity meters and low-voltage current transformers, playing a vital role in the transfer, fixing, and protection of secondary cables. With the rapid development of the power industry, existing terminal boxes have evolved into various styles, colors, and protection levels to meet basic functional requirements such as daily wiring, protection against electric shock, dustproofing, and waterproofing.

[0003] However, in practical applications, the inherent defects of traditional terminal boxes are becoming increasingly apparent, making it difficult to meet the higher requirements of power grid companies for lean line loss management, accurate electricity bill collection, and anti-electricity theft. Currently, most terminal boxes on the market lack intelligent monitoring and analysis functions, failing to proactively report wiring anomalies or data anomalies, thus hindering effective prevention of human wiring errors and user electricity theft. This directly leads to metering errors in electricity consumption and energy loss statistics. Crucially, existing technology cannot effectively monitor the secondary voltage and current entering and leaving the terminal box of low-voltage current transformers. When a fault affects line loss indicators, it often takes until T-2 days to detect, missing the optimal time for timely fault handling and causing significant inconvenience and difficulties for subsequent electricity consumption and bill collection.

[0004] Furthermore, traditional terminal boxes cannot provide effective and accurate information support for analyzing power loss. Staff need to conduct extensive on-site verification, which not only consumes significant manpower, resources, and time but also reduces work efficiency, hindering the rapid management and improvement of line loss indicators. These problems not only affect the direct economic interests of power grid companies but also restrict the further improvement of intelligent and lean management in the power industry. Therefore, developing a terminal box and its control system with intelligent monitoring, anomaly detection, and real-time data uploading capabilities is particularly necessary. Summary of the Invention

[0005] This invention provides an intelligent analytical terminal box and its control system, which overcomes the shortcomings of the prior art and can effectively solve the problems of traditional terminal boxes having no intelligent monitoring function, delayed anomaly detection, inaccurate measurement, and difficulty in line loss management.

[0006] One of the technical solutions of this invention is achieved through the following measures: an intelligent analytical terminal box, comprising a box body and a transparent protective cover disposed on the box body. The box body includes a first main body, a second main body, and a third main body arranged and connected in sequence. The first main body includes a top plate and a wiring communication component disposed on the top plate for implementing basic wiring functions. The second main body includes an insulating and heat-insulating plate for separating the first main body and the third main body. The third main body includes a base and a monitoring and acquisition component disposed on the base for transmitting monitoring data to an acquisition terminal. The circuit board of the monitoring and acquisition component is electrically connected to the wiring communication component of the first main body through wires. The wiring communication component includes a wiring module and a communication module. The wiring module is used to realize external... The electrical connection of the wires and the communication module are used to realize data interaction with the acquisition terminal. The monitoring and acquisition components include an alarm and a sampler, comparator and microcontroller integrated on the circuit board. When the box is connected to the outside through the wiring module, the sampler samples the voltage and current data transmitted by the wiring communication component. The comparator compares the voltage and current data in the same wiring hole and transmits the comparison data to the microcontroller. The microcontroller analyzes and records the comparison data and determines whether the comparison data matches the preset data in the acquisition terminal. When the comparison data does not match the preset data, the alarm sounds an alarm. The microcontroller is electrically connected to the communication chip of the communication module through the wires to transmit the comparison data to the acquisition terminal through the communication chip.

[0007] The following are further optimizations and / or improvements to one of the above-mentioned technical solutions: The aforementioned wiring module may include a voltage connecting piece, a current connecting piece, a conductor, and a first wiring hole. The voltage connecting piece and the current connecting piece are arranged in parallel and spaced apart. The conductor passes through the voltage connecting piece and the current connecting piece and is electrically connected to the inner wall of the first wiring hole.

[0008] The aforementioned communication module may include a communication chip and a second wiring hole. The communication chip is disposed on the top plate circuit board of the first main body, and the second wiring hole is embedded in the surface of the top plate and electrically connected to the communication chip through a wire. The communication chip is connected to the acquisition terminal, and the second wiring hole is a 485 wiring hole.

[0009] The second technical solution of the present invention is achieved through the following measures: a control system for controlling the aforementioned intelligent analytical terminal box, the control system being connected to a data acquisition backend, including a sampling unit, a comparison unit, a processing unit, a communication unit, and a data acquisition terminal; the sampling unit is integrated into a circuit board inside the box, used to synchronously sample the voltage and current data of the same wiring hole of the wiring module and output an analog sampling signal; the comparison unit is connected to the sampling unit, used to compare the analog sampling signal with the voltage and current data in the same wiring hole and output comparison data; the processing unit is connected to the comparison unit, used to match the comparison data with preset data sent by the data acquisition terminal, and generate an abnormal alarm signal when the comparison data does not match the preset data; the communication unit establishes a bidirectional data channel with the processing unit and the data acquisition terminal respectively, used to upload the abnormal alarm signal and the corresponding comparison data to the data acquisition terminal in real time; the data acquisition terminal is used to transmit the abnormal alarm signal and the corresponding comparison data to the data acquisition backend through the communication unit.

[0010] The following are further optimizations and / or improvements to the second technical solution of the above invention: The above sampling unit may include a voltage sampling module, a current sampling module and a synchronous sampling module. The voltage sampling module is used to acquire the voltage waveform to ground of the first terminal, the current sampling module is used to acquire the loop current waveform of the first terminal, and the synchronous sampling module is used to sample the voltage waveform and the current waveform from the same source and output a digital sampling signal.

[0011] The aforementioned comparison unit can be connected to the sampling unit to compare the analog sampling signal with the voltage and current data in the same terminal. Specifically, it compares the upper input current and the lower output current of the same terminal to determine whether there is an open circuit, short circuit, or electricity theft; and compares the upper input voltage and the lower output voltage of the same terminal to determine whether there is undervoltage or overvoltage.

[0012] The aforementioned preset data may include at least one of the following: voltage threshold range, current threshold range, voltage-current phase relationship, and the maximum difference ratio of current balance in the same circuit.

[0013] The above may also include an alarm unit, which is connected to the processing unit and is used to issue an on-site alarm upon receiving an abnormal alarm signal.

[0014] The aforementioned data acquisition terminal may include a historical database, which is established based on the correlation between comparative data and timestamps. Based on the historical database, the data acquisition terminal performs real-time calculation and monitoring of line loss indicators, and immediately triggers an alarm unit when the line loss indicators exceed the threshold.

[0015] The aforementioned data collection backend may include a data analysis module. The data analysis module is used to establish a user electricity consumption behavior model based on long-term records of comparative data, and compare real-time electricity consumption data with the user electricity consumption behavior model. When an abnormal electricity consumption pattern is detected, a warning of suspected electricity theft is generated.

[0016] This invention achieves comprehensive intelligent monitoring of wiring status, voltage and current data, and user electricity consumption through structural optimization of the intelligent analytical terminal box and collaborative design of the control system. The three-section main structure of the terminal box ensures wiring stability and safety while providing reasonable installation space for the monitoring and acquisition components. The insulation and heat insulation board effectively avoids mutual interference between different components. Reliable connection between the monitoring and acquisition components and the wiring communication components ensures the accuracy and timeliness of sampled data, while the clear connection method between the microcontroller and the communication module ensures efficient transmission of abnormal data. The various units of the control system have clear division of labor and work collaboratively, forming a complete closed loop from data sampling, comparison, and processing to abnormal data uploading and alarm triggering, enabling rapid detection of wiring abnormalities, open circuits, short circuits, and electricity theft. Simultaneously, by establishing a historical database and user electricity consumption behavior model, it not only achieves real-time monitoring of line loss indicators but also accurately identifies suspected electricity theft, providing strong support for the lean management of the power grid company. The overall technical solution effectively ensures the accuracy of the metering device, reduces electricity and fee losses, alleviates the workload of grassroots units, and improves the intelligent management level and operational efficiency of the power system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the intelligent analytical terminal box according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the first main body side structure of the intelligent analytical terminal box according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the second main body side structure of the intelligent analytical terminal box according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the third main body side structure of the intelligent analytical terminal box according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the workflow of the control system according to an embodiment of the present invention.

[0022] The codes in the attached diagram are as follows: 1 is the box body, 2 is the transparent protective cover, 3 is the first wiring hole, 4 is the fixing hole, 5 is the voltage connection piece, 6 is the current connection piece, 7 is the conductor, 8 is the communication module, 9 is the second wiring hole, 11 is the first main body, 12 is the second main body, 13 is the third main body, and 131 is the microcontroller. Detailed Implementation

[0023] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0024] The present invention will be further described below with reference to embodiments: Example 1: As Figure 1 , 2As shown in Figures 3 and 4, this embodiment provides an intelligent analytical terminal box, including a box body 1 and a transparent protective cover 2 disposed on the box body 1. The box body 1 includes a first main body 11, a second main body 12, and a third main body 13 connected in sequence. The first main body 11 includes a top plate and a wiring communication component disposed on the top plate for implementing basic wiring functions. The second main body 12 includes an insulating heat insulation plate to separate the first main body 11 and the third main body 13. The third main body 13 includes a base and a monitoring and acquisition component disposed on the base for transmitting monitoring data to an acquisition terminal. The circuit board of the monitoring and acquisition component is electrically connected to the wiring communication component of the first main body 11 through wires. The wiring communication component includes a wiring module and a communication module 8. The wiring module is used to realize external... The electrical connection of the wires and the communication module 8 are used to realize data interaction with the acquisition terminal. The monitoring and acquisition components include an alarm and a sampler, comparator, and microcontroller 131 integrated on the circuit board. When the box 1 is connected to the outside through the wiring module, the sampler samples the voltage and current data transmitted by the wiring communication component. The comparator compares the voltage and current data in the same wiring hole and transmits the comparison data to the microcontroller 131. The microcontroller 131 analyzes and records the comparison data and determines whether the comparison data matches the preset data in the acquisition terminal. When the comparison data does not match the preset data, the alarm sounds an alarm. The microcontroller 131 is electrically connected to the communication chip of the communication module 8 through the wires to transmit the comparison data to the acquisition terminal via the communication chip. In this invention, the box 1 is an integrally molded structure made of high-temperature resistant insulating material. The first body 11, the second body 12, and the third body 13 are sequentially fixed by bolts or snap-fit ​​connections along the length direction. Sealing strips are provided at the connection points, which have both dustproof and waterproof performance and structural stability. The top plate of the first main body 11 has pre-drilled fixing holes 4. The transparent protective cover 2 is mounted on the outside of the box 1 through the fixing holes 4, which not only provides physical protection for the internal wiring and communication components but also facilitates intuitive observation of the wiring status. The insulating and heat-insulating plate of the second main body 12 not only achieves physical isolation between the first main body 11 and the third main body 13 but also blocks the heat generated by the wiring from being conducted to the monitoring and acquisition components, avoiding the impact of high temperature on the working stability of electronic components. The microcontroller 131 can be an STM32L431RCT6. In this invention, the first main body 11, the second main body 12, and the third main body 13 are sequentially and tightly connected along the length of the box 1 to form an integrated structure; the second main body 12 is located between the first main body 11 and the third main body 13, and the three are fixed by bolts or snap-fit ​​connection, with a sealing strip at the connection point; the wiring and communication components are located on the upper part of the first main body 11, and the monitoring and acquisition components are located on the lower part of the third main body 13. The second main body 12 isolates the two main bodies to avoid electrical interference and heat transfer.In this way, the three-section structure design of the terminal box achieves reasonable functional zoning. The first main body 11 is responsible for basic wiring, the insulation and heat insulation board of the second main body 12 effectively isolates interference, and the monitoring and acquisition components of the third main body 13 realize data sampling, analysis and transmission. The coordinated work of each part ensures the stable operation of the equipment. The cooperation of the sampler, comparator and microcontroller 131 can capture abnormal voltage and current data in real time, and the alarm can issue local warnings in a timely manner, which can facilitate the rapid discovery of problems by on-site personnel. At the same time, the data is uploaded to the acquisition terminal through the communication chip, realizing remote monitoring and control and improving the intelligence level of the equipment.

[0025] In this embodiment, the wiring module includes a voltage connecting piece 5, a current connecting piece 6, a conductor 7, and a first wiring hole 3. The voltage connecting piece 5 and the current connecting piece 6 are arranged parallel and spaced apart. The conductor 7 passes through the voltage connecting piece 5 and the current connecting piece 6 and is conductively connected to the inner wall of the first wiring hole 3. This arrangement avoids electrical interference between the parallel and spaced voltage connecting piece 5 and the current connecting piece 6, ensures the stability and reliability of current transmission through the conductor 7, and ensures good contact after the external wire is connected, reducing measurement errors caused by poor contact and providing a stable electrical foundation for subsequent data monitoring. In this invention, the conductor 7 may include a screw and a central conductive copper tube. The central conductive copper tube is embedded inside the top plate of the first main body 11, and its upper and lower ends pass through the top plate and are correspondingly connected to the first wiring holes 3 at the upper and lower ends of the box 1. The screw is vertically inserted into the central conductive copper tube through a pre-set threaded hole on the surface of the top plate. Tightening the screw achieves a tight connection between the external wire and the conductive copper tube, thereby ensuring stable current transmission. Both voltage connecting piece 5 and current connecting piece 6 are slidable metal pieces, arranged parallel to each other on the inner surface of the top plate of the first main body 11, and respectively in contact with the outer wall of the central conductive copper tube. By moving the voltage connecting piece 5 or the current connecting piece 6 laterally along the slide rail preset on the inner side of the top plate, the connecting piece can simultaneously cover the outer wall of two adjacent central conductive copper tubes, thereby achieving current short-circuiting of the corresponding upper and lower conductive copper tubes and meeting the current transfer requirements under different wiring scenarios. The first wiring hole 3 is opened on the upper and lower surfaces of the top plate of the first main body 11, and the axis of each first wiring hole 3 coincides with the axis of the central conductive copper tube. After the external wire is inserted into the first wiring hole 3, it is connected to the conductive copper tube by screw pressing, and finally the voltage and current are connected. In this invention, the connection method of the wiring module conforms to the design specifications for low-voltage metering circuit wiring components in "Low-voltage switchgear and controlgear assemblies - Part 5: Low-voltage reactive power compensation assemblies for power supply to public power grids" (GB 7251.5-2013). Its core connection logic is consistent with the "sliding connecting piece + conductive copper tube" structure described in the published patent "A low-voltage metering terminal box" (patent number: CN202021568978.2). The technical details of the relevant connection relationship can be referred to the above-mentioned national standards and published patent documents, and will not be repeated here.

[0026] In this embodiment, the communication module 8 includes a communication chip and a second wiring hole 9. The communication chip is disposed on the top plate circuit board of the first main body 11, and the second wiring hole 9 is embedded in the surface of the top plate and electrically connected to the communication chip through a wire. The communication chip is connected to the acquisition terminal, and the second wiring hole 9 is a 485 wiring hole. In this invention, the MAX485CPA communication chip is recommended for the communication module 8. It is an RS-485 half-duplex transceiver, compatible with the 485 wiring hole protocol and a rate of 9600-115200bps. Its 4.75V-5.25V operating voltage is compatible with the power supply inside the box. The 8-pin DIP package can be soldered to the top plate circuit board, and the ±15kV ESD protection is suitable for low-voltage metering scenarios, enabling stable data interaction. In this way, the soldered installation of the communication chip ensures the firmness of the connection and avoids poor contact caused by factors such as vibration. The second wiring hole 9 adopts the RS-485 wiring hole, which supports the RS-485 communication protocol, which has the characteristics of strong anti-interference ability and long transmission distance. It can realize stable data transmission in complex power environments and provide reliable hardware support for bidirectional data interaction between the control system and the acquisition terminal.

[0027] During operation, the external wires are first connected to the first wiring hole 3, and electrical connection is achieved through the wiring module. The transparent protective cover 2 protects the internal structure of the box 1. After the device is powered on, the monitoring and acquisition component starts working. The sampler continuously samples the voltage and current data transmitted by the wiring communication component and transmits the sampled data to the comparator. The comparator compares and analyzes the voltage and current data of the same wiring hole and sends the comparison data to the microcontroller 131. The microcontroller 131 matches the comparison data with the preset data sent by the acquisition terminal. If the data does not match, an alarm is immediately triggered, and the comparison data is transmitted to the communication chip through the wires. The communication chip then uploads the data to the acquisition terminal through the second wiring hole 9, realizing real-time reporting of abnormal data. Overall, this intelligent analytical terminal box has a reasonable structure and complete functions, and can quickly respond to wiring and power consumption anomalies, providing a strong guarantee for the accuracy of power metering.

[0028] Example 2: As Figure 5As shown, this embodiment provides a control system for controlling the aforementioned intelligent analytical terminal box. The control system is connected to the data acquisition backend and includes a sampling unit, a comparison unit, a processing unit, a communication unit, and a data acquisition terminal. The sampling unit is integrated into the circuit board inside the box and is used to synchronously sample the voltage and current data of the same terminal of the wiring module and output analog sampling signals. The comparison unit is connected to the sampling unit and is used to compare the analog sampling signals with the voltage and current data in the same terminal and output comparison data. The processing unit is connected to the comparison unit and is used to match the comparison data with preset data sent by the data acquisition terminal, and generate an abnormal alarm signal when the comparison data does not match the preset data. The communication unit establishes bidirectional data channels with the processing unit and the data acquisition terminal respectively, and is used to upload the abnormal alarm signal and the corresponding comparison data to the data acquisition terminal in real time. The data acquisition terminal is used to transmit the abnormal alarm signal and the corresponding comparison data to the data acquisition backend through the communication unit. In this invention, the processing unit can be an STM32L431RCT6 microcontroller, and the generated abnormal alarm signal is a structured data packet containing information such as abnormality type, occurrence time, and loop identifier, which facilitates subsequent tracing and processing. The communication unit employs a narrowband power line carrier module or a low-power wireless module, connecting to the processing unit via a UART serial port. It reports data within seconds of an anomaly occurring, avoiding wasted communication resources. The data acquisition terminal utilizes existing distribution area concentrators, interconnecting with the data acquisition backend via a 4G or fiber optic uplink channel. Manual personnel can extract terminal data daily through the business system to summarize and record anomalies. In this way, the various units of the control system form a complete data processing and transmission link. The sampling unit achieves synchronous acquisition of voltage and current data, ensuring data timeliness and consistency; the comparison unit performs preliminary screening and comparison of data, providing a basis for subsequent anomaly judgment; the processing unit, as the core control module, completes the matching of data with preset standards and the generation of anomaly signals; the communication unit establishes a reliable bidirectional data channel, ensuring real-time transmission of anomaly signals and data; and the data acquisition terminal realizes data aggregation and uploading, allowing managers to promptly grasp the equipment operating status, thus improving the overall response speed and processing efficiency to anomalies.

[0029] In this embodiment, the sampling unit includes a voltage sampling module, a current sampling module, and a synchronous sampling module. The voltage sampling module is used to acquire the voltage waveform to ground of the first terminal block, the current sampling module is used to acquire the loop current waveform of the first terminal block, and the synchronous sampling module is used to sample the voltage and current waveforms from the same source and output a digital sampling signal. The sampling unit uses high-precision voltage and current sensors, precisely positioned at the upper and lower ends of each first terminal block 3, to synchronously collect data at the input and output positions of key circuits such as live wire and neutral wire. The sampling frequency is configured to 50 times per second (synchronized with the power frequency) to ensure the real-time and synchronous nature of data acquisition. The comparison unit uses a comparison circuit composed of an analog comparator chip or a high-speed operational amplifier to directly receive the analog sampling signal from the sampling unit. By calculating the difference and proportional relationship between the input and output data of the same terminal block, it accurately identifies various anomalies. In this way, the voltage sampling module and the current sampling module can collect voltage and current data in a targeted manner, ensuring the professionalism and accuracy of data acquisition; the synchronous sampling module realizes the same source sampling of voltage waveform and current waveform, avoiding data deviation caused by asynchronous sampling, and the output format of digital sampling signals facilitates data processing and analysis by subsequent processing units, providing technical support for the accuracy of anomaly judgment.

[0030] In this embodiment, the comparison unit is connected to the sampling unit and is used to compare the analog sampling signal with the voltage and current data in the same terminal. Specifically, it compares the upper input current and the lower output current of the same terminal to determine whether there is an open circuit, short circuit, or electricity theft; it compares the upper input voltage and the lower output voltage of the same terminal to determine whether there is poor contact or overload. In this way, by comparing the current and voltage at the upper and lower ends of the same terminal, the comparison unit can accurately identify different types of abnormalities. Current differences can quickly detect serious problems affecting metering and electrical safety, such as open circuits, short circuits, and electricity theft. Voltage differences can promptly detect potential hazards such as poor contact and overload, providing a clear direction for subsequent targeted processing and effectively improving the accuracy of anomaly detection.

[0031] In this embodiment, the preset data includes at least one of the following: voltage threshold range, current threshold range, voltage-current phase relationship, and the maximum difference ratio of current balance in the same circuit. This diverse range of preset data types provides a comprehensive reference standard for the processing unit's anomaly detection. Voltage and current threshold ranges can quickly determine whether data exceeds the normal operating range; voltage and current phase relationships can detect problems such as wiring errors; and the maximum difference ratio of current balance in the same circuit can detect abnormal current distribution in the circuit. This multi-dimensional judgment standard ensures that no anomalies are overlooked, improving the reliability and comprehensiveness of the control system.

[0032] In this embodiment, an alarm unit is also included. The alarm unit is connected to the processing unit and is used to issue an on-site alarm upon receiving an abnormal alarm signal. In this way, the alarm unit, as an on-site warning device, can immediately issue a reminder when an abnormality occurs, facilitating on-site maintenance personnel to quickly locate the fault and take timely measures to prevent the abnormality from escalating and causing more serious measurement errors or safety hazards. This compensates for the delay in on-site response from remote monitoring, forming a dual on-site and remote alarm mechanism.

[0033] In this embodiment, the data acquisition terminal includes a historical database, which is established based on the association between comparative data and timestamps. Based on this historical database, the acquisition terminal performs real-time calculation and monitoring of line loss indicators, and immediately triggers an alert unit when the line loss indicator exceeds a threshold. This allows for long-term storage and traceability of comparative data through the historical database, and the timestamp-based association facilitates querying data changes over different time periods. The acquisition terminal uses historical data to calculate line loss indicators in real time, enabling timely detection of line loss anomalies. By triggering the alert unit, relevant personnel are alerted to intervene, effectively reducing economic losses caused by excessive line loss and providing data support and technical assurance for lean line loss management.

[0034] In this embodiment, the data acquisition backend includes a data analysis module. This module builds a user electricity consumption behavior model based on long-term records of comparative data and compares real-time electricity consumption data with the model. When abnormal electricity consumption patterns are detected, a suspected electricity theft warning is generated. In this way, the data analysis module can accurately grasp users' normal electricity consumption patterns by building a user electricity consumption behavior model through long-term accumulated comparative data. When there is a significant deviation between real-time electricity consumption data and the model, a suspected electricity theft warning is generated promptly, providing a precise direction for anti-electricity theft investigations, reducing the manpower and material resources wasted on blind on-site verification, and improving the efficiency and accuracy of anti-electricity theft work.

[0035] In this invention, the control system may also include a power management unit and a remote upgrade unit as needed. The power management unit draws energy from an external primary or secondary circuit and converts it into a stable DC operating voltage to provide continuous and stable power support for the sampling unit, comparison unit, processing unit, alarm unit, and communication unit. The remote upgrade unit establishes a connection with the communication unit and processing unit, and can receive upgrade packages sent by the acquisition terminal to complete the online update of the preset threshold table or the firmware upgrade of the processing unit. Maintenance can be completed without disassembling the housing 1, effectively improving the adaptability and service life of the equipment.

[0036] During operation, the sampling unit of the control system synchronously samples the voltage and current data of the same terminal of the wiring module in real time. The voltage sampling module and the current sampling module acquire the voltage waveform and current waveform respectively, and the synchronous sampling module outputs a digital sampling signal after performing same-source sampling. The comparison unit receives the sampling signal and compares it with the voltage and current data of the same terminal to determine whether there are abnormalities such as open circuit, short circuit, or poor contact, and outputs the comparison data. The processing unit matches the comparison data with the preset data sent by the acquisition terminal. If the data does not match, an abnormal alarm signal is generated. On the one hand, it is sent to the warning unit to trigger a local warning, and on the other hand, it is uploaded to the acquisition terminal through the communication unit. The acquisition terminal transmits the abnormal data and the flag signal to the acquisition backend. At the same time, it uses the historical database to calculate the line loss index in real time. When the line loss is abnormal, an alarm is triggered. The data analysis module of the acquisition backend builds a user electricity consumption behavior model through long-term data and generates a suspected electricity theft warning by comparing it with real-time data. The entire control system forms a complete closed loop from data acquisition, analysis, anomaly judgment to warning and reporting, realizing comprehensive and intelligent monitoring of wiring and power consumption, ensuring accurate metering and power safety, and reducing losses caused by line loss and electricity theft.

[0037] It should be noted that, in this invention, "485 connection hole" refers to a dedicated connection interface supporting the RS-485 communication protocol, which has strong anti-interference capabilities and long transmission distance, and is commonly used in industrial control and data acquisition fields; "synchronous sampling" refers to sampling voltage and current signals at the same time to ensure the time consistency of the sampled data and improve the accuracy of data comparison and analysis; "line loss index" refers to the proportion of electrical energy lost during transmission, which is an important parameter for measuring the operating efficiency of the power system; "electricity consumption behavior model" refers to a model reflecting the electricity consumption pattern based on long-term user electricity consumption data, which can be used to identify abnormal electricity consumption patterns; "warning unit" refers to a device used to issue warning signals, usually including audible and visual warning components, which can promptly remind relevant personnel in abnormal situations; "data acquisition backend" refers to a system used to centrally receive, store, analyze, and process data uploaded by the acquisition terminal, and is the core platform for realizing remote monitoring and management.

[0038] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. An intelligent analysis type terminal block comprising a block body and a transparent protective cover provided on the block body, characterized in that, The box body comprises a first body, a second body and a third body connected in sequence, the first body comprises a top plate and a wiring communication assembly arranged on the top plate for realizing basic wiring function, the second body comprises an insulating and heat insulating plate for separating the first body and the third body, the third body comprises a base and a monitoring and collecting assembly arranged on the base for transmitting monitoring data to a collecting terminal, a circuit board of the monitoring and collecting assembly is electrically connected with the wiring communication assembly of the first body through a wire; The wiring communication assembly comprises a wiring module and a communication module, the wiring module is used for realizing electrical connection of external wires, and the communication module is used for realizing data interaction with the collecting terminal; The monitoring and collecting assembly comprises a warning device and a sampler, a comparator and a single-chip microcomputer integrated on the circuit board, when the box body is connected with the outside through the wiring module, the sampler samples voltage and current data transmitted by the wiring communication assembly, the comparator compares voltage and current data in the same wiring hole and transmits comparison data to the single-chip microcomputer, the single-chip microcomputer analyzes and records the comparison data and judges whether the comparison data matches preset data in the single-chip microcomputer, when the comparison data does not match the preset data, the warning device issues a warning, and the single-chip microcomputer is connected with a communication chip of the communication module through a wire to transmit the comparison data to the collecting terminal through the communication chip, and the collecting terminal uploads the comparison data to a collecting system background.

2. The intelligent analysis terminal box according to claim 1, characterized in that, The wiring module comprises a voltage connecting piece, a current connecting piece, a conductive body and a first wiring hole, the voltage connecting piece and the current connecting piece are arranged in parallel and at intervals, and the conductive body penetrates through the voltage connecting piece and the current connecting piece and is in conductive connection with an inner wall of the first wiring hole.

3. The intelligent patch panel of claim 1 or 2, wherein, The communication module comprises a communication chip and a second wiring hole, the communication chip is arranged on a top plate circuit board of the first body, the second wiring hole is embedded on a surface of the top plate and is electrically connected with the communication chip through a wire, the communication chip is connected with the collecting terminal, and the second wiring hole is a 485 wiring hole.

4. A control system characterized by, A control system for controlling the intelligent analysis type terminal box according to any one of claims 1-3, the control system being connected with a collecting background, comprising a sampling unit, a comparison unit, a processing unit, a communication unit and a collecting terminal; The sampling unit is integrated on a circuit board in the box body and is used for synchronously sampling voltage and current data in the same wiring hole of the wiring module and outputting analog sampling signals; The comparison unit is connected with the sampling unit and is used for comparing the analog sampling signals with voltage and current data in the same wiring hole and outputting comparison data results; The processing unit is connected with the comparison unit and is used for matching the comparison data with preset data issued by the collecting terminal and generating an abnormal alarm signal when the comparison data does not match the preset data; The communication unit establishes a bidirectional data channel with the processing unit and the collecting terminal respectively and is used for uploading the abnormal alarm signal and corresponding comparison data to the collecting terminal in real time; The collecting terminal is used for transmitting the abnormal alarm signal and corresponding comparison data to the collecting background through the communication unit.

5. The control system of claim 4, wherein, The sampling unit comprises a voltage sampling module, a current sampling module and a synchronous sampling module, the voltage sampling module is used to acquire a ground voltage waveform of the first wiring hole, the current sampling module is used to acquire a loop current waveform of the first wiring hole, and the synchronous sampling module is used to synchronously sample the voltage waveform and the current waveform and output a digital sampling signal.

6. A control system according to claim 4 or 5, characterised in that, The comparison unit is connected with the sampling unit and is used to compare the analog sampling signal with voltage and current data in the same wiring hole, specifically, input current at an upper end and output current at a lower end of the same wiring hole are compared to determine whether there is an open circuit, a short circuit or electricity stealing behavior, and input voltage at the upper end and output voltage at the lower end of the same wiring hole are compared to determine whether there is an under-voltage or over-voltage.

7. The control system of claim 4 or 5, wherein, The preset data comprises at least one of a voltage threshold range, a current threshold range, a voltage and current phase relationship and a maximum difference ratio of current balance in the same loop.

8. The control system of claim 4 or 5, wherein, The warning unit is connected with the processing unit and is used to issue an on-site warning after receiving the abnormal alarm signal.

9. The control system of claim 8, wherein, The collection terminal comprises a historical database, the historical database is established based on an association relationship between comparison data and a time stamp, the collection terminal performs real-time calculation and monitoring on the line loss index based on the historical database, and the warning unit is triggered immediately when the line loss index exceeds a threshold value.

10. The control system of claim 4 or 5 or 9, wherein, The collection background comprises a data analysis module, the data analysis module is used to establish a user electricity consumption behavior model based on long-term records of comparison data, compare real-time electricity consumption data with the user electricity consumption behavior model, and generate a suspected electricity stealing behavior warning when an electricity consumption mode is detected to be abnormal.

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