CN106027999A - Intelligent video monitoring system for internal state of electric cabinet - Google Patents

Abstract

The invention provides an intelligent video monitoring system for the internal state of an electric cabinet, which belongs to the technical field of intelligentization of electric cabinets. The system includes a measurement and control device, a camera, a strong light and a fixing mechanism, and is connected with the intrusion detection probe through the measurement and control device to the control panel and the sound and light alarm module outside the electrical cabinet, and is also connected to the portable terminal or the network server of the control center. Realize real-time intelligent video monitoring of the internal status of the electrical cabinet, find problems as early as possible and solve them in time, and ensure that the electrical cabinet is always in a safe operating state. The invention can check the internal situation of any cabinet at any time on the control panel, the control center or through the portable terminal, and accurately locate and deal with problems in time, which greatly guarantees the reliability of power supply, improves work efficiency, and ensures the safety of operating personnel. It is suitable for intelligent monitoring of internal equipment or internal space safety of the cabinet.

Description

Intelligent video monitoring system for internal status of electrical cabinet

technical field

The invention relates to an intelligent video monitoring system for the internal state of an electric cabinet, belonging to the technical field of intelligentization of electric cabinets.

Background technique

In the power system, the amount of electrical cabinets is huge, including switch cabinets, cable branch boxes, ring network cabinets, power distribution cabinets, etc., and they are generally installed in the field or at a distance, so inspection and inspection are inconvenient, and failures and accidents often occur Only after operating personnel can know; Therefore, a system of automatic monitoring and alarm is urgently needed.

During the inspection and inspection of the electrical cabinet, the general electrical cabinet is in the live running state. In order to ensure the safety of the operating personnel and improve work efficiency, it is necessary to design a way to check the situation inside the cabinet without opening the cabinet.

The main reasons for failures or accidents inside the electrical cabinet include the following aspects: (1) Intrusion of foreign objects: In places where there are gaps such as the vents of the electrical cabinet, the inlet and outlet ports, there are small animals invading, which may cause Short circuit in the line, damage to the insulation of the insulation equipment, damage to the equipment caused by gnawing, etc.; (2) Discoloration and pollution of electrical equipment: due to improper operation by the operator, damage to the insulation of the electrical equipment itself, damp and mildew, flooding, etc. , causing discoloration and contamination of electrical equipment; (3) Flashover or corona of electrical equipment: When electrical equipment with insulation defects is in operation, discharge occurs on its surface or in the surrounding air, and it will also cause Discoloration of electrical equipment.

From the above analysis, it can be seen that when there is a failure or accident inside the electrical cabinet, it will manifest as foreign object intrusion, defect, discoloration, pollution of electrical equipment, and flashover or corona of electrical equipment. Therefore, on-line monitoring and intelligent comprehensive analysis from these factors can make accurate judgments on the internal state of the electrical cabinet and give early warnings of failures or accidents in time.

The existing technology monitors the interior of the electrical cabinet mainly to monitor the temperature change of the electrical equipment, some of which combine sensors, infrared video monitoring or GIS fault diagnosis, and there is no literature on intelligent video monitoring of the internal state of the electrical cabinet.

Predicting the operating status inside the electrical cabinet in advance and timely warning before failure can effectively reduce equipment damage, ensure power supply reliability, effectively improve production and management efficiency, and reduce economic losses and casualties, which has important practical significance.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides an intelligent video monitoring system for the internal state of the electrical cabinet, which can check the internal conditions of any cabinet at any time on site, in the control center or through a portable terminal, accurately locate problems, give early warning, and timely Treatment can reduce the failure rate, reduce equipment damage, and greatly ensure the reliability of power supply. At the same time, it can effectively improve production and management efficiency and ensure the safety of operating personnel.

The technical solution adopted by the present invention to solve its technical problems is:

An intelligent video monitoring system for the internal state of an electrical cabinet, including a measurement and control device (1), a camera (2), a strong light (3), and a fixing mechanism (4); the measurement and control device (1) is installed in the electrical cabinet (5) Inside, the camera (2) and the strong light (3) are installed on the fixing mechanism (4), and the fixing mechanism (4) is installed inside the electrical cabinet (5).

The camera (2) and the strong light (3) are respectively connected to the measurement and control device (1), and the measurement and control device (1) controls the work of the camera (2) and the strong light (3); the camera (2) is connected to the measurement and control device (1) ) under the control of real-time zooming, and automatically or manually adjust the shooting angle of the electrical cabinet (5), and send the real-time video images of the electrical equipment (6) that need to be monitored in the electrical cabinet (5) to the measurement and control device ( 1); the strong light (3) is mainly used to cooperate with the camera (2) for auxiliary lighting when the camera (2) is shooting inside the electrical cabinet (5) due to light problems in the cabinet; the strong light (3) can It works automatically with the shooting process, and its switch and brightness can also be controlled manually.

The camera (2) takes pictures of the interior of the electrical cabinet (5) and the appearance of the electrical equipment (6) to be monitored under the auxiliary lighting of the strong light (3), and sends the captured video images to the measurement and control device (1) , the measurement and control device (1) processes and analyzes the video images in real time, on the one hand to judge whether there are moving objects inside the electrical cabinet (5), and on the other hand to judge whether there are identifiable changes and defects in the appearance of the electrical equipment (6), and to find out whether there are moving objects When there are changes and defects in the object or appearance, an alarm will be issued. The so-called moving objects refer to the phenomenon that objects not inside the cabinet enter the cabinet or the equipment inside the cabinet moves, mainly for small animals; identifiable changes and defects in the appearance refer to defects, discoloration, pollution and other phenomena.

In order to realize on-site inspections without opening the cabinet, the system also includes a control panel (7), which is installed outside the electrical cabinet (5) and connected to the measurement and control device (1); the control panel (7) includes buttons (701), Display screen (702) and communication interface (703); set the parameters of the measurement and control device (1) through the buttons (701), so that it can control the zoom of the camera (2) in real time and the shooting angle through the fixing mechanism (4) in real time Adjustment control; the display screen (702) is used to display parameters, current video images, and check historical video images with the buttons (701); the communication interface (703) is used to connect external memory or electronic equipment. The button (701) can control the operating parameters of other equipment by setting the parameters of the measurement and control device (1), such as: camera (2), intrusion detection probe (10), sound and light alarm module (11), etc., and can also complete the monitoring of the display screen (702) Control of displaying video image content and supplementary light control of the strong light (3); the communication interface (703) can be connected to external storage or electronic devices via wired or wireless methods such as Wifi, Bluetooth, and GPRS.

In order to facilitate monitoring and alarming, the system also includes a portable terminal (8), which is carried by the operator; the portable terminal (8) includes buttons (801), a liquid crystal display (802) and a terminal communication module (803); through the terminal The communication module (803) communicates with the measurement and control device (1) via wired or wireless means, as a supplement or substitute for the control panel (7), or as an alarm receiving device for operation and maintenance personnel. The function of the button (801) is the same as that of the button (701), and it mainly completes the parameter setting of the measurement and control device (1) and the control of the display content of the liquid crystal display (802); the function of the liquid crystal display (802) is the same as that of the display screen (702) , the liquid crystal display (802) can complete the switching of parameters and video images under the control of the button (801), mainly displaying the relevant parameters of the measurement and control device (1), and the internal video of the electrical cabinet (5) captured by the current camera (2) Images and viewing of historical video images; the terminal communication module (803) can communicate with the measurement and control device (1) via wired or wireless methods such as Wifi, Bluetooth, and GPRS. The portable terminal (8) has an alarm receiving function, and can receive an alarm from the measurement and control device (1) when an abnormality occurs inside the electrical cabinet (5). The portable terminal (8) can be customized or utilize a smartphone; it can be used on-site or remotely.

The system includes a control center network server (9), and the measurement and control device (1) remotely exchanges data with the control center network server (9). The control center network server (9) can realize remote data exchange with the measurement and control device (1) through wired methods such as optical fiber and carrier wave, or remote wireless methods such as GPRS, and can also complete remote control, remote inspection, remote alarm, and save historical data, etc. Features.

The system includes an intrusion detection probe (10), which is installed inside the electrical cabinet (5), and detects in real time whether any small animal enters the electrical cabinet (5), and if so, sends a signal to the measurement and control device (1), and the measurement and control device (1) Control the camera (2) Capture video images and give an alarm. The intrusion detection probe (10) can be an infrared detector, a microwave detector and other devices; under normal circumstances, the intrusion detection probe (10) has a certain rate of false positives, and the measurement and control device (1) can use the corresponding On-site intelligent video analysis of video images can effectively eliminate false alarms; in addition, video images can also be uploaded for manual assisted judgment. That is to say, although the intrusion detection probe (10) has a certain rate of false positives, due to the upload of the on-site image when an alarm is issued, the operator finally makes an accurate judgment through the on-site image.

When the auxiliary lighting of the strong light (3) is not used, the camera (2) sends the video image in the electrical cabinet (5) collected in real time to the measurement and control device (1) for intelligent video recognition and analysis, and it is found that the flash In the event of a network or corona phenomenon, an alarm will be issued. When the auxiliary lighting of the strong light (3) is not used, the inside of the electrical cabinet (5) is in a dark state, and when flashover or corona occurs, the video image will have an obvious bright light response, so the measurement and control device (1) is sensitive to the camera. (2) Real-time collected video images are used for intelligent video recognition and analysis, and when flashover or corona is found, an alarm is issued.

When the strong light (3) is used for auxiliary lighting, the camera (2) sends the video image of the electrical equipment (6) in the electrical cabinet (5) collected in real time to the measurement and control device (1) for comparison with the historical video image. Intelligent video recognition and automatic comparison, when defects, discoloration, and contamination are found, an alarm will be issued. When the strong light (3) is used for auxiliary lighting, the measurement and control device (1) uses an intelligent video recognition algorithm to perform intelligent video recognition and automatic comparison between the video images collected by the camera (2) in real time and the historical video images, and finds that there are defects, In the event of discoloration or contamination, an alarm will be issued, and the image will be uploaded as abnormal data, and the operator will make the final judgment. Generally, defects are caused by gnawing by small animals, discoloration is caused by flashover or corona, and pollution is caused by damp, mildew or flooding.

In order to realize on-site alarm, the system also includes an audible and visual alarm module (11), which is connected with the measurement and control device (1) and installed outside the electrical cabinet (5). The alarm is that when an abnormal situation is found, the measurement and control device (1) sends an alarm message to the network server (9) of the control center or directly to the portable terminal (8) of the operation and maintenance personnel, and displays it on the display screen (702), and at the same time The driving sound and light alarm module (11) adopts local sound and light alarm. The remote alarm is to notify the operating personnel to carry out on-site verification, maintenance and processing, and the sound and light alarm is to remind the operating personnel of abnormal conditions inside the electrical cabinet (5) when there are operating personnel working nearby, which is more convenient for timely processing.

There are three working modes of the system, one is real-time continuous operation, the other is regular operation, and the third is operation under the control of operators. When the system is working, the auxiliary lighting of the strong light (3) can be automatically alternated or manually controlled. The real-time continuous operation means that the system is always in the working state. When objects move, foreign objects invade, equipment appearance changes or defects, flashover or corona, etc., these abnormalities can be found immediately and alarmed immediately, and the camera ( 2) Upload the captured video images; the regular work refers to taking pictures of the inside of the electrical cabinet (5) at a set time interval, and comparing and analyzing the captured video images with historical video images , alarm when an abnormal situation is found; the said work under the control of the operating personnel refers to the operation performed by the operating personnel through the network server (9) of the control center, the portable terminal (8) or the control panel (7) remotely or directly without opening the cabinet. Observe the situation inside the electrical cabinet (5), and perform operations such as zooming, adjusting the angle, and supplementing light through the strong light (3). Angle, the camera (2) also has a zoom function, which can have a clear view of the situation inside the electrical cabinet, avoiding opening the cabinet for inspection, and effectively ensuring the safety of operating personnel.

Compared with the prior art, the present invention has the following advantages:

The present invention adopts the mode of intelligent video, which can realize the function of automatic identification and automatic comparison between the collected video image and the historical video image, timely find abnormal phenomena such as defect, discoloration, pollution, object movement, etc., and send out an alarm signal; The way of intrusion detection probe realizes the monitoring of small animals and ensures that the electrical cabinet and internal electrical equipment are protected from animal damage. Using the combination of camera and strong light, in addition to observing the internal conditions of the electrical cabinet when there is light, it can also observe the flashover and corona phenomena of the electrical equipment (6) in the absence of light, and send out alarm signals in time. Therefore, the failure rate can be reduced, the damage of equipment can be reduced, and the reliability of power supply can be greatly guaranteed.

Using control panel embedded display screen, portable terminal and control center multiple inspection schemes, not only can directly observe the situation inside the electrical cabinet without opening the cabinet, but also can adjust the angle of observation according to the needs, and have a good understanding of the operating environment and operation of electrical equipment The status is comprehensively grasped, and when problems are found, they can be accurately located, alarmed in advance, and operators are reminded to deal with them in a timely manner. This not only ensures the reliability of power supply, but also improves work efficiency, and at the same time ensures the safety of operators.

Description of drawings

Figure 1: Structural block diagram of the electrical cabinet system.

Figure 2: Side view of the electrical cabinet.

Figure 3: Structural diagram of the electrical cabinet system.

Figure 4: Structural diagram of the portable terminal in the electrical cabinet.

In the figure: 1—measurement and control device, 2—camera, 3—high light, 4—fixing mechanism, 5—electrical cabinet, 6—electrical equipment, 7—control panel, 701—button, 702—display screen, 703— Communication interface, 8—portable terminal, 801—button, 802—LCD display, 803—terminal communication module, 9—control center network server, 10—intrusion detection probe, 11—sound and light alarm module.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the structural block diagram of the electrical cabinet system consists of a measurement and control device (1), a camera (2), a strong light (3), a control panel (7), a portable terminal (8), a control center network server (9), an intrusion It consists of a detection probe (10) and an acousto-optic alarm module (11).

As shown in Figure 2, the camera (2) and the strong light (3) are installed on the fixing mechanism (4), and installed inside the electrical cabinet (5) through the fixing mechanism (4); the measurement and control device (1) is installed on the fixing mechanism ( 4), the intrusion detection probe (10) is installed on the top of the inside of the electrical cabinet (5); the control panel (7) is installed outside the electrical cabinet (5); the sound and light alarm module (11) is installed on the control panel ( 7) above.

As shown in Figure 3, the control panel (7) and the sound and light alarm module (11) are installed outside the electrical cabinet (5); the control panel (7) includes buttons (701), a display screen (702) and a communication interface (703 ); the intelligent monitoring system can complete the information exchange with the portable terminal (8) and the control center network server (10).

As shown in Figure 2, the camera (2) and the strong light (3) are respectively connected to the measurement and control device (1), and the camera (2) zooms in real time under the control of the measurement and control device (1), and can automatically or manually adjust the electrical cabinet The shooting angle in the cabinet (5) will send the video image of the electrical equipment (6) that needs to be monitored in the electrical cabinet (5) to the measurement and control device (1); the strong light (3) is mainly used in the cabinet due to the light The problem affects that when the camera (2) takes pictures of the inside of the electrical cabinet (5), under the control of the measurement and control device (1), it cooperates with the camera (2) to provide auxiliary lighting; the strong light (3) can work alternately automatically, or through Manually control its switch and brightness.

As shown in Figure 2, the camera (2) captures the internal conditions of the electrical cabinet (5) and the appearance of the electrical equipment (6) to be monitored, and sends the captured video images to the measurement and control device (1), and the measurement and control device (1) Real-time processing and analysis of video images, on the one hand, to determine whether there are moving objects inside the electrical cabinet (5), and on the other hand, to determine whether there are identifiable changes and defects in the appearance of the electrical equipment (6), and to find moving objects or changes and defects in appearance , an alarm is issued.

As shown in Figure 2, the intrusion detection probe (10) is installed inside the electrical cabinet (5) to detect in real time whether small animals enter the electrical cabinet (5), and if so, send a signal to the measurement and control device (1), and the measurement and control device ( 1) Control the camera (2) to take video images and give an alarm. The intrusion detection probe (10) can be an infrared detector, a microwave detector and other devices.

As shown in Figure 2, when the auxiliary lighting of the strong light (3) is not used, the inside of the electrical cabinet (5) is in a dark state. When flashover or corona occurs, the video image will have an obvious light response. Through the measurement and control device ( 1) Carry out intelligent video recognition and analysis on the video images collected by the camera (2) in real time, and send an alarm when flashover or corona is found.

As shown in Figure 2, when the strong light (3) is used for auxiliary lighting, the measurement and control device (1) uses the intelligent video recognition algorithm to collect the video of the electrical equipment (6) in the electrical cabinet (5) in real time by the camera (2) Intelligent video recognition and automatic comparison between images and historical video images. When defects, discoloration, and contamination are found, an alarm will be issued. At the same time, the image will be uploaded as abnormal data, and the operator will make the final judgment.

As shown in Fig. 2 and Fig. 3, the control panel (7) is connected with the measurement and control device (1), including buttons (701), display screen (702) and communication interface (703). The button (701) can control the operating parameters of other equipment by setting the parameters of the measurement and control device (1), so that the camera (2) can zoom and adjust the shooting angle in real time, and the intrusion detection probe (10) can detect in real time whether there are foreign intrusion objects, The sound and light alarm module (11) is in the ready alarm state in real time; the button (701) can also complete the control of the content of the video image displayed on the display screen (702) and the supplementary light control of the strong light (3); the display screen (702) It mainly displays the relevant parameters of the measurement and control device (1), the internal conditions of the electrical cabinet (5) captured by the current camera (2), and can realize the viewing and display of historical video images through the control buttons (701); the communication interface (703 ) can be connected to external storage or electronic devices via wired or wireless methods such as Wifi, Bluetooth, and GPRS, including U disk, mobile hard disk, mobile phone, handheld, notebook computer, tablet computer, etc.

As shown in Figure 2 and Figure 3, the sound and light alarm module (11) is connected with the measurement and control device (1) and installed outside the electrical cabinet (5). When an abnormal situation is found, the measurement and control device (1) sends an alarm message to the network server (9) of the control center or directly to the portable terminal (8) of the operation and maintenance personnel, and displays it on the display screen (702), and drives the sound and light alarm module at the same time (11) Use local sound and light alarm.

As shown in Figure 3, the control center network server (9) can realize remote data exchange with the measurement and control device (1) through wired methods such as optical fiber and carrier wave, or remote wireless methods such as GPRS, and can also complete remote control, remote inspection, remote alarm, Functions such as saving historical data.

As shown in Fig. 3 and Fig. 4, the portable terminal (8) is carried by the operating personnel, including buttons (801), liquid crystal display (802) and terminal communication module (803). The key (801) mainly completes the parameter setting of the measurement and control device (1) and the control of the display content of the liquid crystal display (802); the liquid crystal display (802) can complete the switching of parameters and video images under the control of the key (801), mainly Display the relevant parameters of the measurement and control device (1), the internal video images of the electrical cabinet (5) captured by the current camera (2), and realize the viewing of historical video images; the terminal communication module (803) can be wired or Wifi, Bluetooth , GPRS and other wireless means to communicate with the measurement and control device (1), as a supplement or substitute for the control panel (7), or as an alarm receiving device for operation and maintenance personnel; the portable terminal (8) has an alarm receiving function, when the system When an abnormality is found inside the electrical cabinet (5), it can receive an alarm from the measurement and control device (1), and notify the operating personnel to deal with it in time.

The above descriptions are only preferred implementation examples of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (9)

1. An intelligent video monitoring system for the internal state of the electrical cabinet, characterized in that the system includes a measurement and control device (1), a camera (2), a strong light (3), and a fixing mechanism (4); The measurement and control device (1) is installed inside the electrical cabinet (5), the camera (2) and the strong light (3) are installed on the fixing mechanism (4), and the fixing mechanism (4) is installed inside the electrical cabinet (5); The camera (2) and the strong light (3) are respectively connected to the measurement and control device (1), and the measurement and control device (1) controls the work of the camera (2) and the strong light (3); The camera (2) takes pictures of the interior of the electrical cabinet (5) and the appearance of the electrical equipment (6) to be monitored under the auxiliary lighting of the strong light (3), and sends the captured video images to the measurement and control device (1) , the measurement and control device (1) processes and analyzes the video images in real time, on the one hand to judge whether there are moving objects inside the electrical cabinet (5), and on the other hand to judge whether there are identifiable changes and defects in the appearance of the electrical equipment (6), and to find out whether there are moving objects When there are changes and defects in the object or appearance, an alarm will be issued. 2. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: the system includes a control panel (7), which is installed outside the electrical cabinet (5) and connected to the measurement and control device (1); The control panel (7) includes buttons (701), a display screen (702) and a communication interface (703); through the buttons (701), the parameters of the measurement and control device (1) are set, so that it can control the zoom of the camera (2) in real time , Real-time adjustment and control of the shooting angle through the fixed mechanism (4); the display screen (702) is used to display parameters and current video images, and cooperate with the buttons (701) to view historical video images; the communication interface (703) is used to connect external storage or electronic equipment. 3. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: the system includes a portable terminal (8), which is carried by the operator; The portable terminal (8) includes buttons (801), liquid crystal display (802) and terminal communication module (803); the terminal communication module (803) communicates with the measurement and control device (1) via wired or wireless means, as a control panel ( 7), or as an alarm receiving device for operation and maintenance personnel. 4. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that the system includes a control center network server (9), and the measurement and control device (1) exchanges data with the control center network server (9) remotely. 5. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: the system includes an intrusion detection probe (10), which is installed inside the electrical cabinet (5), and detects in real time whether a small animal enters the electrical cabinet or not. If there is one in the cabinet (5), it will send a signal to the measurement and control device (1), and the measurement and control device (1) will control the camera (2) to take video images and give an alarm. 6. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: when no strong light (3) is used for auxiliary lighting, the camera (2) collects the collected electrical cabinet (5) in real time ) is sent to the measurement and control device (1) for intelligent video recognition and analysis, and when flashover or corona is found, an alarm will be issued. 7. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: when the strong light (3) is used for auxiliary lighting, the camera (2) collects the electrical cabinet (5) in real time The video image of the electrical equipment (6) inside is sent to the measurement and control device (1) for intelligent video recognition and automatic comparison with historical video images, and an alarm is issued when defects, discoloration, and contamination are found. 8. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that the system includes an audible and visual alarm module (11), which is connected to the measurement and control device (1) and installed in the electrical cabinet (5) external. 9. The intelligent video monitoring system for the internal state of the electrical cabinet according to claim 1, characterized in that: the system has three working modes, one is real-time continuous operation, the other is timing work, and the third is working under the control of the operator, When the system is working, the auxiliary lighting of the strong light (3) can be automatically alternated or manually controlled.