System and method for preventing foreign objects from invading transformer substation

Abstract

The invention relates to the technical field of transformer substation foreign object invasion prevention, in particular to a transformer substation foreign object invasion prevention system and method.The transformer substation foreign object invasion prevention system comprises a small animal recognition and driving device, a power supply control device, a power supply control device, a power supply control device, a power supply control device and a power supply control device, and the small animal recognition and driving device is used for recognizing and driving small animals in a cable trench, a switch cabinet cable inlet and a relay protection chamber cable layer; the ground equipment monitoring device is used for monitoring all equipment on the ground in the transformer substation; the access control system is used for managing and recording personnel and vehicles entering and exiting the transformer substation; the toxic gas detection device is used for detecting the concentration of toxic gas in the cable trench; the oxygen content detection device is used for detecting the oxygen content in the environment, so that the early warning and coping capability of preventing foreign object invasion of the transformer substation is improved, and the influence of potential safety hazards such as small animal invasion on a power system is effectively reduced; the comprehensive monitoring of all ground equipment in the transformer substation is realized, and hidden dangers are found and processed in time; the security and protection efficiency of personnel and vehicles entering and exiting the transformer substation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of preventing foreign objects from intruding into a substation, and in particular to a system and method for preventing foreign objects from intruding into a substation. Background Art

[0002] As a key node of the power system, the normal operation of the substation is directly related to the safety and stability of the power system. At present, the prevention and alarm functions of substations against foreign objects are still at a relatively primary stage, especially the areas where the cable trenches, switch cabinets, and relay protection rooms of substations are connected to the outside world rely on traditional blocking methods to prevent foreign objects from damaging them, and the blocking conditions need to be checked regularly every year. If small animals invade during the inspection period, the operation and maintenance personnel cannot discover it in time, which is very likely to cause the small animals to enter the switch cabinet and cause short-circuit burning accidents, or enter the relay protection room to damage secondary cables, optical cables and other equipment, causing equipment malfunctions, erroneous signal transmission or communication interruption.

[0003] In addition, most substations are unmanned or undermanned. When foreign objects (suspended objects, bird nests, cats, snakes, etc.) hang on or climb equipment in the substation, the hidden dangers cannot be discovered and dealt with immediately. The fault can only be discovered after the equipment trips due to grounding / short circuit fault. At the same time, the security of personnel and vehicles entering and leaving the substation is still at the stage of showing work permits, telephone filing, inquiry, and paper registration. The work efficiency is low, and there are also problems with registration and verification errors. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem that the measures for preventing foreign objects from intruding into the substation are insufficient, the present invention is proposed.

[0006] Therefore, one of the objects of the present invention is to provide a system for preventing foreign objects from intruding into a substation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: a small animal identification and expelling device, used for identifying and expelling small animals in cable trenches, switch cabinet cable entrances, and cable layers of relay protection rooms;

[0008] Ground equipment monitoring device, used to monitor all ground equipment in the substation;

[0009] Access control system to manage and record people and vehicles entering and leaving the substation;

[0010] Toxic gas detection device, used to detect the concentration of toxic gases in the cable trench;

[0011] An oxygen content detection device is used to detect the oxygen content in the environment;

[0012] Temperature and humidity detection device, used to detect the temperature and humidity in the cable trench;

[0013] Magnetic bio-effect baffle, used to generate a static magnetic field to drive small animals to produce a stress response;

[0014] The background management system is used to receive and process alarm signals from various devices and notify relevant personnel to handle them.

[0015] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for preventing foreign objects from intruding a substation, comprising the above-mentioned system for preventing foreign objects from intruding a substation, and further comprising installing a small animal identification and repelling device in a cable trench, a switch cabinet cable entrance, and a cable layer of a relay protection room;

[0016] Through cameras, lasers, speakers, and irritating gas jets, when small animals are found to have invaded, they are driven away and an alarm is sounded based on the type of animal identified;

[0017] Cameras are installed on all ground equipment in the substation. When floating objects or small animals are found entering the substation equipment area or birds are found building nests on equipment or structures, alarm signals are promptly issued to drive away the small animals and send signals to the operation duty personnel;

[0018] An access control system is set up at the gate of the substation, which allows people to enter and exit the substation directly through facial recognition and vehicle number recognition, and the entry and exit times are recorded in the system.

[0019] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, the small animal identification and driving away device comprises:

[0020] Cameras are used to monitor cable trenches, switch cabinet cable entrances, and relay protection room cable layers in real time;

[0021] Laser, used to emit laser beams to drive away small animals;

[0022] A loudspeaker, used to play the sounds of natural enemies to drive away small animals;

[0023] Irritant gas spray device, used to spray irritating odor to drive away small animals;

[0024] The alarm is used to send out an alarm signal when a small animal intrusion is detected.

[0025] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, the camera is installed around all the equipment on the ground in the substation to monitor the equipment area in the substation in real time.

[0026] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, the access control system includes:

[0027] A facial recognition device is used to identify people entering and leaving the substation;

[0028] Vehicle identification device, used to identify vehicles entering and leaving the substation;

[0029] Recording device, used to record the time information of people and vehicles entering and leaving the substation.

[0030] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, a toxic gas detection device is installed in the substation to monitor the concentration of toxic gases in the cable trench in real time and send out an alarm signal when the preset threshold is exceeded.

[0031] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, an oxygen content detection device is installed in the substation to monitor the oxygen content in the environment in real time and send out an alarm signal when it is lower than a preset threshold.

[0032] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, a temperature and humidity detection device is installed in the substation to monitor the temperature and humidity in the cable trench in real time and send out an alarm signal when an abnormality occurs.

[0033] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, a magnetic bioeffect baffle is installed in the substation to generate a static magnetic field to drive small animals to produce a stress response and prevent them from approaching the switch cabinet.

[0034] As a preferred solution of the method for preventing foreign objects from intruding into a substation of the present invention, a background management system is installed in the substation to receive and process alarm signals from various devices and notify relevant personnel to handle them.

[0035] The beneficial effects of the method for preventing foreign objects from intruding into a substation described in the present invention are as follows: the present invention improves the early warning and response capabilities of the substation against foreign objects intrusion, and effectively reduces the impact of safety hazards such as small animal invasion on the power system; realizes comprehensive monitoring of all ground equipment in the substation, and timely discovers and handles hidden dangers; improves the security efficiency of personnel and vehicles entering and exiting the substation, and reduces the risk of registration and verification errors. Comprehensive protection by multiple means can effectively prevent small animals and other foreign objects from intruding into the substation, ensure the safe and stable operation of the substation, improve the level of automated management of the substation, and reduce operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0037] Figure 1 This is a schematic diagram of the working conditions of the small animal expulsion and cable trench toxic gas detection device in the substation's foreign object intrusion prevention system.

[0038] Figure 2 This is a schematic diagram of the working of the magnetic bio-effect baffle of the substation foreign object intrusion protection system.

[0039] Figure 3 This is a flow chart of the image recognition algorithm for the substation foreign object intrusion prevention system.

[0040] Figure 4 This is a schematic diagram of the identification, alarm and linkage of the substation's foreign object intrusion prevention system.

[0041] Figure 5 Design drawing of small animal repellent device for substation foreign object intrusion prevention system.

[0042] Figure 6 This is the connection diagram of the substation anti-foreign object intrusion system components.

[0043] Figure 7 This is the sensor connection diagram for the substation anti-foreign object intrusion system.

[0044] Figure 8 This is the connection diagram of the power supply components of the substation anti-foreign object intrusion system.

[0045] Fig. 9 This is the appearance diagram of the small animal repellent device in the substation's foreign object intrusion prevention system. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0049] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0050] Example 1

[0051] Reference Figure 1-Figure 9 , which is the first embodiment of the present invention, and provides a system for preventing foreign objects from intruding into a substation, including a small animal identification and expelling device for identifying and expelling small animals in cable trenches, cable entrances of switch cabinets, and cable layers of relay protection rooms;

[0052] Ground equipment monitoring device, used to monitor all ground equipment in the substation;

[0053] Access control system to manage and record people and vehicles entering and leaving the substation;

[0054] Toxic gas detection device, used to detect the concentration of toxic gases in the cable trench;

[0055] An oxygen content detection device is used to detect the oxygen content in the environment;

[0056] Temperature and humidity detection device, used to detect the temperature and humidity in the cable trench;

[0057] Magnetic bio-effect baffle, used to generate a static magnetic field to drive small animals to produce a stress response;

[0058] The background management system is used to receive and process alarm signals from various devices and notify relevant personnel to handle them.

[0059] Operation process: The toxic gas detection device for small animals in this system includes a camera, a spray component, a fill light component, a laser repeller, a carbon monoxide toxic gas sensor, an oxygen content sensor, and a speaker component integrated structure, which is powered by an external AC 220V to DC 5V converter. Its working method:

[0060] Toxic gas sensors detect the carbon monoxide content in the cable trench in real time, and the background can set the alarm value for real-time warning; at the same time, the oxygen content sensor detects the oxygen content in the environment in real time, and the background can notify the on-site personnel in real time if the oxygen content is too low;

[0061] When the camera detects small animals such as mice and snakes, it can emit a laser beam, activate the sound of natural enemies (cats), and spray pungent odors from the spray component to drive them away.

[0062] The small animals in this system are driven away by a magnetic bio-effect baffle. Due to the magnetic bio-effect: ① the reverse magnetic repulsion causes a stress response in the organism and the organism does not approach; ② exposure to moderate-intensity static magnetic fields will cause abnormal blood rheology in small mammals, and long-term exposure will cause the mice to gradually lose their ability to locate, navigate and explore space, and even cause damage to the body.

[0063] A baffle based on the permanent neodymium static magnetic field is designed and manufactured and placed in the cable trench. When a small mouse approaches the permanent neodymium static magnetic field baffle, the mouse will no longer come forward due to its repulsive nature.

[0064] At the same time, a storage bin is designed and manufactured at the bottom of the baffle, and realgar powder is added to effectively prevent snakes from entering the cable trench.

[0065] Small animal identification alarm and background linkage

[0066] When the camera captures a moving object in the cable trench, the automatic trigger device starts the laser beam illumination and links the loudspeaker to drive it away, and automatically takes pictures at the same time. The control circuit transmits the picture and the device location information wirelessly to the alarm background, and the background software records it (or transmits the information to the operation and maintenance personnel's mobile phone through a communication card via SMS, etc., to remind the operation and maintenance personnel to check).

[0067] When the monitoring value of the toxic gas (carbon monoxide) sensor exceeds the limit or the oxygen content is too low, the background will automatically activate the alarm to prevent maintenance personnel from poisoning safety accidents.

[0068] The small animal repellent and cable trench toxic gas detection device is installed on the inner wall of the cable trench and fixed by expansion bolts; the device provides a 220V AC power interface, the power line is fixed to the cable trench wall through a pipe, and leads to the 220V AC power supply on the wall of the control room. The device is powered on and turned on to enter the working state, and the data is transmitted to the background through the built-in 4G module. The magnetic bioeffect baffle is composed of a baffle and a cover. The cover is covered on the cable trench, and the baffle is perpendicular to the bottom of the cover (by Figure 1 and Figure 2 shown).

[0069] The device software includes: Linux-based embedded image recognition and control program, Windows-based background recognition alarm and background linkage management program.

[0070] (1) Embedded image recognition and control program

[0071] The camera collects images in real time, and the program retrieves the model library for recognition. The algorithm flow is as follows: Figure 3 As shown;

[0072] After successful image recognition, the embedded control program starts the hardware operation. The process is as follows: Figure 4 shown.

[0073] Background identification alarm and background linkage management program

[0074] The background program can manage the distributed equipment and upload data. The background program receives the image data and sensor data sent back by the front-end device in real time, and can also turn on the front-end camera for real-time viewing, send expulsion instructions, and start the front-end sound, light, and gas hardware. The image data is stored in the folder, and the sensor data is stored in the PostgreSQL database.

[0075] Example 2

[0076] Reference Figure 3-Figure 9 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: small animal identification and repelling devices are installed in the cable trench, the cable entrance of the switch cabinet, and the cable layer of the relay protection room;

[0077] Through cameras, lasers, speakers, and irritating gas jets, when small animals are found to have invaded, they are driven away and an alarm is sounded based on the type of animal identified;

[0078] Cameras are installed on all ground equipment in the substation. When floating objects or small animals are found entering the substation equipment area or birds are found building nests on equipment or structures, alarm signals are promptly issued to drive away the small animals and send signals to the operation duty personnel;

[0079] An access control system is set up at the gate of the substation, which allows people to enter and exit the substation directly through facial recognition and vehicle number recognition, and the entry and exit times are recorded in the system.

[0080] Furthermore, the small animal identification and driving away device comprises:

[0081] Cameras are used to monitor cable trenches, switch cabinet cable entrances, and relay protection room cable layers in real time;

[0082] Laser, used to emit laser beams to drive away small animals;

[0083] A loudspeaker, used to play the sounds of natural enemies to drive away small animals;

[0084] Irritant gas spray device, used to spray irritating odor to drive away small animals;

[0085] The alarm is used to send out an alarm signal when a small animal intrusion is detected.

[0086] The cameras are installed around all the equipment on the ground in the substation and are used to monitor the equipment area in the substation in real time.

[0087] Furthermore, the access control system includes:

[0088] A facial recognition device is used to identify people entering and leaving the substation;

[0089] Vehicle identification device, used to identify vehicles entering and leaving the substation;

[0090] Recording device, used to record the time information of people and vehicles entering and leaving the substation.

[0091] Furthermore, a toxic gas detection device is installed in the substation to monitor the concentration of toxic gases in the cable trench in real time and send out an alarm signal when it exceeds a preset threshold.

[0092] Furthermore, an oxygen content detection device is installed in the substation to monitor the oxygen content in the environment in real time and send out an alarm signal when it is lower than a preset threshold.

[0093] Furthermore, a temperature and humidity detection device is installed in the substation to monitor the temperature and humidity in the cable trench in real time and send out an alarm signal in case of abnormality.

[0094] Furthermore, a magnetic bio-effect baffle is installed in the substation to generate a static magnetic field to drive small animals to produce a stress response and prevent them from approaching the switch cabinet.

[0095] Furthermore, a background management system is installed in the substation to receive and process alarm signals from various devices and notify relevant personnel to handle them.

[0096] The rest of the structure is the same as that of Example 1.

[0097] Operation process: Install small animal identification and repelling devices in cable trenches, switch cabinet cable entrances, and relay protection room cable layers. Through cameras, lasers, speakers, and irritating gas spray devices, when small animals (snakes, mice, etc.) are found to have invaded, they are repelled and an alarm is sounded based on the type of animal identified.

[0098] Cameras are installed on all ground equipment in the substation. When floating objects or small animals (cats, snakes, rabbits, etc.) are found entering the substation equipment area or birds are found building nests on equipment or structures, alarm signals are promptly issued to drive away the small animals and send the signal to the operation duty personnel.

[0099] An access control system is set up at the gate of the substation, which allows people to enter and exit the substation directly through facial recognition and vehicle number recognition, and the entry and exit times are recorded in the system.

[0100] Example 3

[0101] Reference Figure 5-Figure 9 , which is the third embodiment of the present invention. Different from the above embodiments, this embodiment provides a method for preventing foreign objects from intruding into a substation, including the above-mentioned system for preventing foreign objects from intruding into a substation. The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the specific structure of the small animal driving away and cable trench toxic gas detection device is specifically described.

[0102] Specifically, the small animal repellent and cable trench toxic gas detection device (excluding the outer shell) mainly consists of five parts: main control component, sensor, power supply component, fill light component, and wireless communication. The main control component is composed of NVIDIA Jetson edge computing main control board, camera, and cooling fan; the sensor is an integrated micro integrated circuit, consisting of laser, speaker component, atomization component, carbon monoxide gas, oxygen content sensor, and control circuit; the power supply component mainly includes switching power supply and voltage stabilizing module; the fill light component is composed of LED fill light and light controller; the wireless communication is composed of 4G module, antenna, and SIM card.

[0103] The rest of the structure is the same as that of Example 2.

[0104] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A system for preventing foreign objects from intruding into a substation, characterized in that: include, Small animal identification and expulsion device, used to identify and expel small animals in cable trenches, switch cabinet cable entrances, and cable layers in relay protection rooms; Ground equipment monitoring device, used to monitor all ground equipment in the substation; Access control system to manage and record people and vehicles entering and leaving the substation; Toxic gas detection device, used to detect the concentration of toxic gases in the cable trench; An oxygen content detection device is used to detect the oxygen content in the environment; Temperature and humidity detection device, used to detect the temperature and humidity in the cable trench; Magnetic bio-effect baffle, used to generate a static magnetic field to drive small animals to produce a stress response; The background management system is used to receive and process alarm signals from various devices and notify relevant personnel to handle them.

2. A method for preventing foreign objects from intruding into a substation, characterized in that: The system for preventing foreign objects from intruding into a substation according to claim 1 further comprises: Install small animal identification and repelling devices in cable trenches, switch cabinet cable entrances, and cable layers in relay protection rooms; Through cameras, lasers, speakers, and irritating gas jets, when small animals are found to have invaded, they are driven away and an alarm is sounded based on the type of animal identified; Cameras are installed on all ground equipment in the substation. When floating objects or small animals are found entering the substation equipment area or birds are found building nests on equipment or structures, alarm signals are promptly issued to drive away the small animals and send signals to the operation duty personnel; An access control system is set up at the gate of the substation, which allows people to enter and exit the substation directly through facial recognition and vehicle number recognition, and the entry and exit times are recorded in the system.

3. The method for preventing foreign objects from intruding into a substation according to claim 2, characterized in that: The small animal identification and driving away device comprises: Cameras are used to monitor cable trenches, switch cabinet cable entrances, and relay protection room cable layers in real time; Laser, used to emit laser beams to drive away small animals; A loudspeaker, used to play the sounds of natural enemies to drive away small animals; Irritant gas spray device, used to spray irritating odor to drive away small animals; The alarm is used to send out an alarm signal when a small animal intrusion is detected.

4. The method for preventing foreign objects from intruding into a substation according to claim 3, characterized in that: The cameras are installed around all the equipment on the ground in the substation and are used to monitor the equipment area in the substation in real time.

5. The method for preventing foreign objects from intruding into a substation according to claim 4, characterized in that: The access control system comprises: A facial recognition device is used to identify people entering and leaving the substation; Vehicle identification device, used to identify vehicles entering and leaving the substation; Recording device, used to record the time information of people and vehicles entering and leaving the substation.

6. The method for preventing foreign objects from intruding into a substation according to claim 5, characterized in that: Toxic gas detection devices are installed in substations to monitor the concentration of toxic gases in the cable trench in real time and send out alarm signals when the preset threshold is exceeded.

7. The method for preventing foreign objects from intruding into a substation according to claim 6, characterized in that: An oxygen content detection device is installed in the substation to monitor the oxygen content in the environment in real time and send out an alarm signal when it is lower than the preset threshold.

8. The method for preventing foreign objects from intruding into a substation according to claim 7, characterized in that: A temperature and humidity detection device is installed in the substation to monitor the temperature and humidity in the cable trench in real time and send out an alarm signal in case of abnormality.

9. The method for preventing foreign objects from intruding into a substation according to claim 8, characterized in that: Magnetic bio-effect baffles are installed in the substation to generate a static magnetic field to drive small animals to produce a stress response and prevent them from approaching the switch cabinet.

10. The method for preventing foreign objects from intruding into a substation according to claim 9, characterized in that: A background management system is installed in the substation to receive and process alarm signals from various devices and notify relevant personnel to handle them.

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