An intelligent monitoring system and method for an electrical distribution cabinet environment

Abstract

The application discloses a power distribution cabinet environment intelligent monitoring system and a monitoring method, and relates to the field of power distribution cabinet monitoring. The monitoring system comprises a total control computer, a total control programmable controller and a sub-control unit, the total control computer and the total control programmable controller are connected through a communication network cable to enable the two to communicate with each other, and the total control programmable controller is connected with multiple sub-control units through the communication network cable; the sub-control unit comprises a sub-station controller, a power supply tripping device, a sub-terminal and a power distribution cabinet, and the power distribution cabinet is provided with a fault signal acquisition module, a terminal row, a sensor module and a thermal imaging camera. The application aims to provide a power distribution cabinet environment intelligent monitoring system and a monitoring method, so that the environment in the power distribution cabinet can be detected in real time, and when a safety hazard occurs, maintenance personnel can be timely informed and handled.

Description

Technical Field

[0001] This invention relates to the field of monitoring technology, specifically to an intelligent monitoring system and method for a power distribution cabinet environment. Background Technology

[0002] Distribution cabinets are critical infrastructure in power systems, widely used for the distribution and control of electricity in industrial, commercial, and residential applications. They integrate various electrical components such as circuit breakers, contactors, busbars, relays, and secondary circuits, and their operational status directly affects the safety and reliability of the entire power supply system.

[0003] In most application scenarios, the operational status of power distribution cabinets still relies primarily on regular manual inspections. When anomalies are detected, inspectors rely on their personal experience to determine the cause of the fault. However, manual inspections are periodic and cannot uncover potential safety hazards. For example, at the Ulanhot Cigarette Factory, from November to May of the following year, there are an average of no fewer than 10 instances of inverter short-circuit damage annually, causing significant economic losses to the company. Analysis revealed that most of these short-circuit explosions are caused by excessive surface humidity on components, resulting in a momentary connection between phases or between the positive and negative terminals of the power supply. Furthermore, when safety hazards appear in the power distribution cabinet, they cannot be addressed promptly, leading to accidents. To overcome this technical problem, this invention provides an intelligent monitoring system and method for the environment of power distribution cabinets. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent monitoring system and method for the environment of a power distribution cabinet, so as to monitor the environment inside the power distribution cabinet in real time and to promptly handle and notify maintenance personnel when safety hazards occur.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A power distribution cabinet environment intelligent monitoring system includes a central control computer, a central control programmable controller, and sub-control units. The central control computer and the central control programmable controller are connected via a communication network cable to enable communication between them. The central control programmable controller is connected to multiple sub-control units via a communication network cable.

[0007] The sub-control unit includes a substation controller, a power trip unit, a sub-terminal, and a power distribution cabinet. The substation controller and the sub-terminal are connected via a communication network cable, so that the sub-terminal can display the environmental parameters and electrical parameters of the power distribution cabinet and issue control commands to the substation controller. The substation controller and the power trip unit are connected via a control line, so that the power trip unit performs power-off protection after receiving the command from the substation controller. The substation controller and the main programmable controller are connected via a communication network cable, so that the two can communicate with each other.

[0008] The power distribution cabinet is equipped with a fault signal acquisition module, terminal blocks, sensor modules, and a thermal imaging camera. The sensor module is composed of multiple sensors, each connected to a terminal block. The terminal blocks are connected to the fault signal acquisition module. The fault signal acquisition module is connected to the substation controller via a communication network cable to transmit environmental and electrical parameters to the substation controller for parameter comparison. The thermal imaging camera is used to capture images inside the power distribution cabinet and transmit them to the central control computer. The thermal imaging camera is also connected to the substation controller.

[0009] Furthermore, the main programmable controller is also connected to an uninterruptible power supply to power each sub-control unit.

[0010] Furthermore, the sensor module includes a vibration sensor, a smoke detector, a temperature sensor, and a humidity sensor.

[0011] Furthermore, the thermal imaging camera is installed inside the power distribution cabinet, and is connected to the switch and substation controller. Multiple switches are connected to the streaming media server, and the streaming media server is connected to the central control computer.

[0012] Furthermore, the fault signal acquisition module is also connected to the circuit breaker auxiliary contacts, smart meters, or protection devices in the distribution cabinet to collect electrical parameters in real time.

[0013] Furthermore, it also includes a maintenance personnel terminal, through which the central control computer wirelessly transmits information to the maintenance personnel terminal.

[0014] On the other hand, the present invention also provides a method for intelligent monitoring of the distribution cabinet environment, comprising:

[0015] The sensor module monitors the environmental parameters inside the power distribution cabinet and sends them to the fault signal acquisition module. The fault signal acquisition module monitors the electrical parameters inside the power distribution cabinet. When the environmental parameters and / or electrical parameters do not meet the preset range or preset value, an alarm signal is triggered and the power trip unit is controlled by the substation controller to cut off the power.

[0016] After the alarm signal passes through the substation controller, it has four output control paths, including controlling the power trip unit to cut off the power, displaying parameters on the sub-terminal, triggering the thermal imaging camera to acquire thermal images, and uploading the alarm signal to the main control programmable controller.

[0017] The central programmable controller transmits alarm signals to the central computer, and the collected thermal images are also transmitted to the central computer simultaneously. The alarm signals and thermal images are combined to form fault information. The fault information is analyzed by the fault database program in the central computer to generate maintenance suggestions.

[0018] The central control computer pushes the distribution cabinet address, fault information, and maintenance suggestions to the maintenance personnel's terminal.

[0019] Furthermore, the environmental parameters include temperature, humidity, and the presence of vibration and smoke, while the electrical parameters include voltage, current, and power.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention includes a central control computer, a central programmable controller, and sub-control units. The sub-control units include substation controllers, power trip units, sub-terminals, and power distribution cabinets. The power distribution cabinets are equipped with fault signal acquisition modules and sensor modules. The sensor modules can monitor the environment in the power distribution cabinet, such as temperature, humidity, and smoke. The fault signal acquisition modules can detect whether some components are faulty, such as short circuits or abnormal voltage. When the environment is not up to standard or a fault occurs, the power trip unit can be triggered in time to cut off the power. This enables timely power-off handling of safety hazards caused by environmental factors and faults during use, thereby preventing the occurrence and escalation of safety accidents.

[0022] The sub-control unit independently detects the corresponding power distribution cabinet. When an alarm signal indicating that the environment does not meet the standards is detected, it will trigger the thermal imaging camera to acquire images. The detected alarm signal and the acquired images will be sent to the central control computer. The central control computer's fault database program analyzes the fault information and generates maintenance suggestions, which are then pushed to personnel terminals to provide timely reminders and maintenance of environmental safety hazards and existing faults. Attached Figure Description

[0023] Figure 1 This is a block diagram of the monitoring system described in this invention.

[0024] In the diagram, 1-central control computer, 2-uninterruptible power supply, 3-central control programmable controller, 4-substation controller, 5-streaming media server, 7-fault signal acquisition module, 8-terminal block, 9-switch, 10-thermal imaging camera, 11-sensor module, 12-power distribution cabinet, 13-sub-terminal, 14-maintenance personnel terminal. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0026] refer to Figure 1As shown, the present invention provides an intelligent monitoring system for a power distribution cabinet environment, including a central control computer 1, a central control programmable controller 3, and sub-control units. The central control computer 1 and the central control programmable controller 3 are connected by a communication network cable to enable communication between them. This allows the alarm signals collected by the central control programmable controller 3 to be sent to the central control computer 1, and on the other hand, the central control computer 1 can issue control commands to the central control programmable controller 3. The central control programmable controller 3 is connected to multiple sub-control units through the communication network cable, and the central control programmable controller 3 controls the corresponding sub-control units by receiving the control commands.

[0027] It should be noted that, in this embodiment, a central control alarm program and a central control fault database program need to be installed in the central control computer 1. The central control alarm program can receive alarm signals transmitted from each sub-control unit and parse them to obtain the address of the power distribution cabinet, the type of fault, and the image. The central control fault database program stores a structured fault knowledge base and supports vectorized retrieval. Its structured fault knowledge base format is as follows: fault data = [fault phenomenon, thermal imaging analysis, possible cause, detection steps, maintenance suggestions]. After obtaining the fault type and / or image from the central control alarm program, the central control fault database program performs vectorized retrieval and matching to generate a feature vector. Its format is as follows: fault feature vector = [power distribution cabinet number, power distribution cabinet address, fault phenomenon, thermal imaging analysis, possible cause, detection steps, maintenance suggestions]. A sub-monitoring program is installed in the central control programmable controller 3. The sub-monitoring program is used to receive and send alarm signals from each sub-control unit and control the corresponding sub-control unit through the sub-monitoring program.

[0028] In this embodiment, the main programmable controller 3 is also connected to an uninterruptible power supply 2 to power each sub-control unit.

[0029] The sub-control unit includes a substation controller 4, a power trip unit 6, a sub-terminal 13, and a power distribution cabinet 12. The substation controller 4 and the sub-terminal 13 are connected via a communication network cable, so that the sub-terminal 13 can display the environmental parameters and electrical parameters of the power distribution cabinet and issue control commands to the substation controller 4. The substation controller 4 and the power trip unit 6 are connected via a control line, so that the power trip unit 6 performs power-off protection after receiving the command from the substation controller 4. The substation controller 4 and the main control programmable controller 3 are connected via a communication network cable, so that the two can communicate with each other. Preferably, the substation controller 4, the power trip unit 6, and the sub-terminal 13 are all installed in the power distribution cabinet 12.

[0030] The power distribution cabinet 12 is equipped with a fault signal acquisition module 7, a terminal block 8, a sensor module 11, and a thermal imaging camera 10. The sensor module 11 is composed of multiple sensors and is connected to the terminal block 8. The terminal block 8 is connected to the fault signal acquisition module 7. The fault signal acquisition module 7 is connected to the substation controller 4 via a communication network cable to transmit environmental parameters and electrical parameters to the substation controller 4 for parameter comparison. The thermal imaging camera 10 is used to capture images inside the power distribution cabinet 12 and transmit them to the central control computer 1. The thermal imaging camera 10 is also connected to the substation controller 4.

[0031] The fault signal acquisition module 7 is also connected to the circuit breaker auxiliary contacts, smart meters or protection devices in the distribution cabinet 12 to collect electrical parameters in real time. In other words, the fault signal acquisition module 7 can collect data from the sensor module 11, i.e., environmental parameters, and can also collect electrical parameters of the components.

[0032] In this embodiment, the sensor module 11 includes a vibration sensor, a smoke detector, a temperature sensor, and a humidity sensor. The sensor module 11 can detect environmental parameters such as temperature, humidity, smoke, and vibration in the power distribution cabinet. It should be noted that the specific number, type, and location of the sensor modules 11 can be increased, decreased, and adjusted according to the actual situation, and are not limited to the above-mentioned types.

[0033] For the transmission of data from the thermal imaging camera 10, the thermal imaging camera 10 is installed inside the power distribution cabinet 12. The thermal imaging camera 10 is connected to the switch 9 and the substation controller 4. Multiple switches 9 are connected to the streaming media server 5 respectively. The streaming media server 5 can receive data from all the thermal imaging cameras 10 and send it to them. The streaming media server 5 is connected to the central control computer 1. Of course, the connection between the thermal imaging camera 10 and the central control computer 1 can also be made by using a wireless gateway.

[0034] The system also includes a maintenance personnel terminal 14, through which the central control computer 1 wirelessly communicates with the maintenance personnel terminal 14 to send information. Preferably, the maintenance personnel terminal 14 is a mobile phone, and the information is sent via WeChat push.

[0035] On the other hand, the present invention also provides a method for intelligent monitoring of the distribution cabinet environment, comprising:

[0036] The sensor module 11 monitors the environmental parameters inside the power distribution cabinet 12 and sends them to the fault signal acquisition module 7. The fault signal acquisition module 7 monitors the electrical parameters inside the power distribution cabinet 12. The environmental parameters include temperature, humidity, and the presence of vibration and smoke. The electrical parameters include voltage, current, and power. When the environmental parameters and / or electrical parameters do not meet the preset range or preset value, an alarm signal is triggered, and the power trip unit 6 is controlled by the substation controller 4 to cut off the power. Preferably, the preset range or preset value can be set in the substation controller 4.

[0037] It should be noted that in this method, preset ranges are suitable for temperature, humidity, voltage, current, and power. If the real-time monitored values ​​are within the preset range, they are considered qualified. For vibration and smoke, Boolean values ​​are suitable. When the Boolean value is 0, it indicates that the condition is qualified. When the Boolean value is 1, it indicates that vibration and smoke are present.

[0038] After the alarm signal passes through the substation controller 4, it has four output control paths, including controlling the power trip unit 6 to cut off the power, displaying parameters on the sub-terminal 13, triggering the thermal imaging camera 10 to acquire thermal images, and uploading the alarm signal to the main control programmable controller 3.

[0039] The main control programmable controller 3 transmits the alarm signal to the main control computer 1, and the collected thermal image is also transmitted to the main control computer 1 at the same time. The alarm signal and thermal image are combined to form fault information. The fault information is analyzed by the fault database program in the main control computer 1 to generate maintenance suggestions.

[0040] The central control computer 1 pushes the power distribution cabinet address, fault information, and maintenance suggestions to the maintenance personnel terminal 14.

[0041] In this specification, terms such as "one embodiment," "another embodiment," "embodiment," and "preferred embodiment" refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same term in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0042] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. An intelligent monitoring system for the environment of a power distribution cabinet, characterized in that, It includes a central control computer (1), a central control programmable controller (3) and sub-control units. The central control computer (1) and the central control programmable controller (3) are connected by a communication network cable so that they can communicate with each other. The central control programmable controller (3) is connected to multiple sub-control units through a communication network cable. The sub-control unit includes a substation controller (4), a power trip unit (6), a sub-terminal (13), and a power distribution cabinet (12). The substation controller (4) and the sub-terminal (13) are connected by a communication network cable so that the sub-terminal (13) can display the environmental parameters and electrical parameters of the power distribution cabinet and issue control commands to the substation controller (4). The substation controller (4) and the power trip unit (6) are connected by a control line so that the power trip unit (6) can perform power-off protection after receiving the command from the substation controller (4). The substation controller (4) and the main control programmable controller (3) are connected by a communication network cable so that the two can communicate with each other. The power distribution cabinet (12) is equipped with a fault signal acquisition module (7), a terminal block (8), a sensor module (11), and a thermal imaging camera (10). The sensor module (11) is composed of multiple sensors and is connected to the terminal block (8) respectively. The terminal block (8) is connected to the fault signal acquisition module (7). The fault signal acquisition module (7) is connected to the substation controller (4) through a communication network cable to transmit the alarm signal to the substation controller (4). The thermal imaging camera (10) is used to capture images inside the power distribution cabinet (12) and transmit them to the main control computer (1). The thermal imaging camera (10) is also connected to the substation controller (4).

2. The intelligent monitoring system for the distribution cabinet environment according to claim 1, characterized in that: The main control programmable controller (3) is also connected to an uninterruptible power supply (2) to power each sub-control unit.

3. The intelligent monitoring system for the distribution cabinet environment according to claim 1, characterized in that: The sensor module (11) includes a vibration sensor, a smoke detector, a temperature sensor, and a humidity sensor.

4. The intelligent monitoring system for the distribution cabinet environment according to claim 1, characterized in that: The thermal imaging camera (10) is installed inside the power distribution cabinet (12). The thermal imaging camera (10) is connected to the switch (9) and the substation controller (4). Multiple switches (9) are connected to the streaming media server (5) respectively. The streaming media server (5) is connected to the central control computer (1).

5. The intelligent monitoring system for the distribution cabinet environment according to claim 1, characterized in that: The fault signal acquisition module (7) is also connected to the circuit breaker auxiliary contacts, smart meters or protection devices in the distribution cabinet (12) for real-time acquisition of electrical parameters.

6. The intelligent monitoring system for the distribution cabinet environment according to claim 1, characterized in that: It also includes a maintenance personnel terminal (14), through which the central control computer (1) wirelessly communicates with the maintenance personnel terminal (14) to send information to the maintenance personnel terminal (14).

7. A method for intelligent monitoring of the environment of a power distribution cabinet, characterized in that, include: The sensor module (11) monitors the environmental parameters in the power distribution cabinet (12) and sends them to the fault signal acquisition module (7). The fault signal acquisition module (7) monitors the electrical parameters in the power distribution cabinet (12). When the environmental parameters and / or electrical parameters do not meet the preset range or preset value, an alarm signal is triggered and the power trip unit (6) is controlled by the substation controller (4) to cut off the power. After the alarm signal passes through the substation controller (4), there are four output control paths, including controlling the power trip unit (6) to cut off the power, displaying parameters on the sub-terminal (13), triggering the thermal imaging camera (10) to collect thermal images, and uploading the alarm signal to the main control programmable controller (3). The main control programmable controller (3) transmits the alarm signal to the main control computer (1), and the collected thermal image is transmitted to the main control computer (1) simultaneously. The alarm signal and thermal image are combined to form fault information. The fault information is analyzed by the fault library program in the main control computer (1) to generate maintenance suggestions. The main control computer (1) pushes the power distribution cabinet address, fault information and maintenance suggestions to the maintenance personnel terminal (14).

8. The intelligent monitoring method for the environment of a power distribution cabinet according to claim 7, characterized in that: The environmental parameters include temperature, humidity, and the presence of vibration and smoke; the electrical parameters include voltage, current, and power.

Images