Intelligent safety fence device and system for power equipment maintenance

Abstract

The application discloses an intelligent safety fence device for electric power equipment maintenance, which comprises a fence stand column, at least two sides of which are perpendicular to each other, infrared light barrier light emitting devices and infrared light barrier light receiving devices being respectively installed on the two sides; a fence base plate for fixing the fence stand column; a centralized manager arranged at the top of the fence stand column and at least in communication with the infrared light barrier light receiving devices; a voice broadcaster arranged at the top of the fence stand column and used for playing live equipment prompt information and intrusion alarm voice; and a fence hook arranged on the other side of the fence stand column and used for hanging a fence net. The application further discloses a corresponding system. By implementing the application, illegal intrusion and nearby live equipment can be alarmed or prompted, and the safety of a power transformation station electric power equipment maintenance process is improved.

Description

Technical Field

[0001] This invention applies to the field of power technology, and particularly relates to an intelligent safety fence device and system for the maintenance of power equipment. Background Technology

[0002] Work permits are required for substation construction work. Setting up safety barriers is one of the important safety measures of work permits. By setting up temporary safety barriers at the work site, workers can be effectively restricted to working in designated areas, preventing them from accidentally entering other live areas and avoiding electric shock accidents.

[0003] Currently, most of the safety fences used in substations are traditional safety fences, which can enclose the work area and restrict the range of movement of maintenance personnel. However, these traditional safety fences have some drawbacks, such as the inability to provide timely warnings and alarms when maintenance personnel cross the safety fence.

[0004] A new type of infrared electronic fence has emerged. Although the new infrared electronic fence can issue alarm information when boundary crossing occurs, it cannot provide warnings about critical construction safety information such as live busbars, live disconnect switches and live conductors adjacent to the work site during power equipment maintenance. It cannot remind and prevent maintenance personnel from approaching live equipment, thus failing to further protect the personal safety of maintenance personnel.

[0005] Meanwhile, the new infrared electronic fence mainly relies on infrared beams for protection, lacks a physical fence net, and cannot meet the requirements of the power system work permit for setting up a safety fence.

[0006] Given the current lack of effective technical means to solve the above problems, there is a need to invent a safer safety fence device suitable for the maintenance of power equipment in substations. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide an intelligent safety fence device and system suitable for the maintenance of power equipment in substations, which can alarm or prompt illegal intrusion and nearby live equipment, thereby improving the safety of the maintenance process of power equipment in substations.

[0008] As one aspect of the present invention, an intelligent safety fence device for the maintenance of power equipment is provided, comprising at least:

[0009] The fence post has at least two sides that are perpendicular to each other, and an infrared grating light-emitting device and an infrared grating light-receiving device are respectively installed on the two sides;

[0010] The fence base is used to fix the fence posts, and is equipped with an adjusting screw for adjusting the height.

[0011] A central manager is located on top of the fence post and communicates at least with the infrared grating light-receiving device;

[0012] A voice broadcaster is installed on the top of the fence post to play alerts for live equipment and intrusion alarm voice messages.

[0013] Fence hooks are installed on other sides of the fence posts to hold the fence netting.

[0014] Preferably, the centralized manager further includes:

[0015] A live equipment prompting unit is used to receive live equipment prompting voice information from the corresponding mobile device and control the voice broadcaster to broadcast periodically.

[0016] An alarm processing unit is used to pause the content broadcast by the voice broadcaster and control the voice broadcaster to broadcast intrusion alarm voice information when it receives an abnormal signal sent by the infrared grating light receiving device.

[0017] An alarm sending unit is used to send the abnormal signal to the mobile terminal.

[0018] Preferably, the fence hook is two L-shaped hooks, one above the other, located on at least one side; the infrared grating light-emitting device has a row of light-emitting holes; and the infrared grating light-receiving device has a row of light-receiving holes.

[0019] Preferably, the infrared grating light-receiving device communicates with the central manager through its built-in LORA communication module.

[0020] Accordingly, another aspect of the present invention also provides an intelligent safety fence system for the maintenance of power equipment, which includes at least:

[0021] Multiple intelligent safety fence devices, as described above, are used to enclose the maintenance area of ​​electrical equipment. The infrared grating light-receiving device on each intelligent safety fence device is aligned with the infrared grating light-emitting device on the adjacent intelligent safety fence device, with each light-emitting hole corresponding to a light-receiving hole. Furthermore, a fence net is hung between adjacent intelligent safety fence devices.

[0022] The mobile terminal communicates with the central manager of the intelligent safety fence device and the power grid management platform to receive work orders for power maintenance and corresponding electrical main connection diagrams; calculates the adjacent live busbars, disconnect switches and conductors existing at the installation location of the safety fence, generates corresponding live equipment prompt voice information and sends it to the intelligent safety fence device; and receives abnormal signals reported by the intelligent safety fence device.

[0023] Preferably, the mobile terminal further includes:

[0024] The work order receiving unit is used to receive power maintenance work orders and corresponding electrical main connection diagrams from the power grid management platform;

[0025] The work order parsing unit is used to parse and obtain the contents of the "work location", "barriers to be installed, signs to be hung", and "grounding switch to be closed, grounding wire to be installed, and insulating baffle to be installed" columns in the work order;

[0026] The equipment space resolution unit is used to establish a sequence table of equipment locations in the maintenance area by grouping equipment in the same interval into one column and equipment in the same row into one row, based on the electrical main connection diagram.

[0027] The live information calculation unit is used to calculate the adjacent live busbars, disconnect switches and conductors at the installation location of the safety fence based on the content parsed by the work order parsing unit and the equipment position sequence table obtained by the equipment space parsing unit.

[0028] The voice information generation unit is used to generate corresponding voice prompts for powered equipment based on the calculation results of the powered information calculation unit.

[0029] The information transceiver unit is used to send the generated voice prompt information for live equipment to the intelligent safety fence device; and to receive abnormal signals reported by the intelligent safety fence device.

[0030] Preferably, the energized information calculation unit calculates the adjacent energized busbars, disconnect switches, and conductors present at the installation location of the safety fence using the following method:

[0031] Based on the work location information required for the installation of safety fences, calculate the position (Xw, Yw) of the work location requiring fence installation on the substation equipment location sequence table. Then, calculate the energized busbars, disconnecting switches, and conductors based on Xw, Yw, and Yw respectively. Specifically:

[0032] Step 1, calculate the energized busbar:

[0033] Determine if the coordinates Yw of the work location column are greater than the coordinates Y of the road column. r If Y w <Y r Determine whether the disconnect switch listed in the "Disconnect switches to be opened" column of the work order includes A. 1m B 1m ....N 1mThe cell contains the isolating switch; if it is included, it is determined to be a non-energized busbar; otherwise, it is determined to be a energized busbar of XXXkV 1M; where 1m refers to the row coordinate of the 1M busbar, A, B...N refer to the column coordinates of each interval on the 1M busbar, and XXX is the voltage level;

[0034] If Yw > Yr, determine whether the disconnector listed in the "Disconnectors to be Opened" column of the work order includes A. 3m B 3m ....N 3m If the isolating switch in the cell is included, it is determined to be a non-energized busbar; otherwise, it is determined to be a energized busbar XXXkV 3M. Here, 3m refers to the row coordinate of the 3M bypass busbar; A, B...N refer to the column coordinates of each interval on the 3M busbar; and XXX is the voltage level.

[0035] Step 2, calculate the live disconnect switch:

[0036] a. Determine if the busbar-side disconnector is energized: After calculating the energized busbar, the busbar-side disconnector XXXX1 corresponding to that bay is the energized disconnector; otherwise, there is no energized disconnector on the busbar side, and so on for other busbars; where, in XXXX1, XXXX is the switch bay number, and 1 is the 1M energized busbar;

[0037] b. Determining whether the disconnector on the line side / main transformer side is energized: Determine whether the "grounding switch should be closed, grounding wire should be installed, and insulating baffle should be installed" column in the work order includes closing the grounding switch / grounding wire on the line side / main transformer side. If it does, then the disconnector on the line side / main transformer side is not energized; otherwise, the XXXX4 disconnector on the line side / main transformer side is energized. In XXXX4, XXXX is the switch bay number, and 4 refers to the line side / main transformer side.

[0038] Step 3, Calculate live conductors: After calculating the live busbars / lines / main transformers and live disconnect switches, identify the live lines, live main transformer cross lines, and the connecting conductors between the live busbars and live disconnect switches as live conductors.

[0039] Implementing the embodiments of the present invention has the following beneficial effects:

[0040] This invention provides an intelligent safety fence device and system for power equipment maintenance, which modifies existing intelligent safety fences for power equipment maintenance from both hardware and software aspects. In this invention, an infrared grating emitter, an infrared grating receiver, and multiple beams of mutually radiating infrared light protect the maintenance area. The infrared grating receiver is a purely wireless design, simple to wire, and easy to install, making it suitable for temporary installation of electronic fences at substation power equipment maintenance sites.

[0041] In this invention, the intelligent safety fence device connects to the power grid management platform via a mobile terminal. Based on the work order and electrical main wiring diagram, it identifies the energized busbars, energized disconnect switches, energized conductors, and safety precautions adjacent to the work site. It issues a warning voice through a voice prompt alarm and promptly issues an alarm when maintenance personnel cross the safety fence, thus preventing safety accidents during the maintenance of substation power equipment and improving the level of safety management at the construction site.

[0042] The intelligent safety fence device provided by this invention is suitable for installing safety fences at work sites during the maintenance of power equipment in substations, and can replace traditional safety fences and infrared electronic fences. The device has stable performance, simple structure, and good application prospects. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A schematic diagram of a structure of an embodiment of an intelligent safety fence system for power equipment maintenance provided by the present invention;

[0045] Figure 2 This is a front view schematic diagram of an embodiment of an intelligent safety fence device for power equipment maintenance provided by the present invention;

[0046] Figure 3 This is a top view schematic diagram of an embodiment of an intelligent safety fence device for power equipment maintenance provided by the present invention;

[0047] Figure 4 for Figure 2 A schematic diagram of the central manager's structure;

[0048] Figure 5 for Figure 1 A schematic diagram of the structure of a China Mobile terminal;

[0049] Figure 6 This is a flowchart of the method used in the charged information calculation unit of the present invention. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0052] like Figure 1 The diagram shown illustrates a structural schematic of an embodiment of an intelligent safety fence system for power equipment maintenance provided by the present invention. (In conjunction with...) Figures 2 to 6 As shown, in this embodiment of the invention, the intelligent security fence system includes at least:

[0053] Multiple smart security fence devices 1 ( Figure 1 Four (as shown) are used to enclose the maintenance area of ​​electrical equipment, and each intelligent safety fence device is equipped with an infrared grating light-receiving device 11 and an infrared grating light-emitting device 12. The infrared grating light-receiving device 11 on each infrared grating light-emitting device 1 is aligned with the infrared grating light-emitting device 12 on the adjacent intelligent safety fence device 1 to form an infrared grating. Specifically, each light-emitting hole corresponds to a light-receiving hole 111; at the same time, a fence net is hung between adjacent intelligent safety fence devices 1. Figure 1 The example shown is a three-sided enclosure of the maintenance area. It is understood that in other embodiments, the maintenance area may also be enclosed on all four sides.

[0054] Mobile terminal 2 communicates with the central manager 15 of the intelligent safety fence device 1 and the power grid management platform 3, and is used to receive work tickets for power maintenance and corresponding electrical main connection diagrams; calculate the adjacent live busbars, disconnect switches and conductors existing at the installation location of the safety fence, generate corresponding live equipment prompt voice information and send it to the intelligent safety fence device 1; and receive abnormal signals reported by the intelligent safety fence device 1.

[0055] The following will be combined Figures 2 to 4 The intelligent safety fence device 1 of the present invention will be described in more detail, and in conjunction with... Figures 5 to 6 The mobile terminal 2 in this invention will be described in more detail.

[0056] like Figures 2 to 4 As shown, an intelligent safety fence device 1 for power equipment maintenance provided by the present invention is illustrated, which includes at least:

[0057] The fence post 10 has at least two sides that are perpendicular to each other, and an infrared grating light-emitting device 12 and an infrared grating light-receiving device 11 are respectively installed on the two sides.

[0058] The fence base 13 is used to fix the fence post 10, and is provided with an adjusting screw (not shown) for adjusting the height; by adjusting the length of the screw, the horizontal height of the fence base is adjusted so that the infrared grating receiver and emitter are on the same horizontal plane;

[0059] The central manager 15 is located on the top of the fence post 10 and communicates with at least the infrared grating light receiving device 11;

[0060] A voice broadcaster 16 is installed on the top of the fence post 10 and is used to play prompts for live equipment and intrusion alarm voice messages.

[0061] Fence hooks 14 are provided on other sides of the fence posts 10 for hanging the fence netting. In one embodiment, two "L"-shaped fence hooks 14 can be provided on each side. The fence netting is installed on the fence posts by the "L"-shaped hooks.

[0062] More specifically, the infrared grating light receiving device 11 includes a filter (not shown) disposed on an internal circuit board and inside an aluminum alloy tube body 110, and a row of light receiving holes 111 disposed on the aluminum alloy tube body 110. The infrared grating light receiving device 11 is fixed to the fence post 10 by means of an upper cover and a lower cover (112) and a fixing screw hole 113.

[0063] It is understood that an infrared light-generating device is provided in the infrared grating light-emitting device 12, and the generated infrared light is sent through a row of light-emitting holes provided thereon, illuminating the light-receiving holes 111 of the infrared grating light-receiving device 11 of another intelligent safety fence device 1, to form an infrared grating.

[0064] Meanwhile, an LORA communication module is provided on the circuit board of the infrared grating light receiving device 12. The infrared grating light receiving device 12 communicates with the central manager 15 through its built-in LORA communication module (not shown).

[0065] In this embodiment of the invention, when a person or appliance passes through or blocks the infrared grating, the infrared grating receiver triggers an intrusion signal and sends the signal to the central controller management terminal through the LORA communication module. After receiving the signal, the central controller management terminal notifies the voice prompt alarm to play a predetermined voice message.

[0066] like Figure 4 As shown, the centralized manager 15 further includes:

[0067] The live equipment prompting information unit 150 is used to receive live equipment prompting voice information from the corresponding mobile device and control the voice broadcaster to broadcast periodically.

[0068] The alarm processing unit 151 is used to pause the content broadcast by the voice broadcaster and control the voice broadcaster to broadcast intrusion alarm voice information when it receives an abnormal signal sent by the infrared grating light receiving device.

[0069] The alarm sending unit 152 is used to send the abnormal signal to the mobile terminal.

[0070] like Figure 6 As shown, the mobile terminal 2 further includes:

[0071] The work order receiving unit 20 is used to receive power maintenance work orders and corresponding electrical main connection diagrams from the power grid management platform 3. In one example, the work order may be a substation maintenance work order, and the electrical main connection diagram may be the electrical main connection diagram of the substation.

[0072] Work order parsing unit 21 is used to parse and obtain the contents of the "work location", "barriers to be installed, signs to be hung", and "grounding switch to be closed, grounding wire to be installed, insulating baffle to be installed" columns in the work order;

[0073] The equipment space analysis unit 22 is used to establish a sequence table of equipment locations in the maintenance area by grouping equipment in the same interval into a column and equipment in the same row into a row, based on the electrical main connection diagram.

[0074] The live information calculation unit 23 is used to calculate the adjacent live busbars, disconnect switches and conductors existing at the safety fence installation location based on the content parsed by the work order parsing unit and the equipment position sequence table obtained by the equipment space parsing unit.

[0075] The voice information generation unit 24 is used to generate corresponding voice prompts for live equipment based on the calculation results of the live information calculation unit. It is understood that in other examples, it may also include voice information on safety precautions.

[0076] The information transceiver unit 25 is used to send the generated voice prompt information for energized equipment to the intelligent safety fence device; and to receive abnormal signals reported by the intelligent safety fence device. In a specific example, the information transceiver unit 25 can communicate with each intelligent safety fence device 1 via Bluetooth.

[0077] More specifically, such as Figure 6As shown, in one example, the energized information calculation unit 23 calculates the adjacent energized busbars, disconnectors, and conductors present at the installation location of the safety fence using the following method:

[0078] Based on the work location information required for the installation of safety fences, calculate the position (Xw, Yw) of the work location requiring fence installation on the substation equipment location sequence table. Then, calculate the energized busbars, disconnecting switches, and conductors based on Xw, Yw, and Yw respectively. Specifically:

[0079] 1. Calculate the energized busbar:

[0080] Determine if the coordinates Yw of the work location column are greater than the coordinates Y of the road column. r If Y w <Y r Determine whether the disconnect switch listed in the "Disconnect switches to be opened" column of the work order includes A. 1m B 1m ....N 1m The cell contains the isolating switch; if it is included, it is determined to be a non-energized busbar; otherwise, it is determined to be a energized busbar of XXXkV 1M; where 1m refers to the row coordinate of the 1M busbar, A, B...N refer to the column coordinates of each interval on the 1M busbar, and XXX is the voltage level;

[0081] If Yw > Yr, determine whether the disconnector listed in the "Disconnectors to be Opened" column of the work order includes A. 3m B 3m ....N 3m If the isolating switch in the cell is included, it is determined to be a non-energized busbar; otherwise, it is determined to be an XXXkV 3M energized busbar. Here, 3m refers to the row coordinate of the 3M bypass busbar; A, B...N refer to the column coordinates of each interval on the 3M busbar; and XXX is the voltage level (e.g., 220).

[0082] Second, calculate the live disconnect switch:

[0083] a. Determine if the busbar-side disconnector is energized: After calculating the energized busbar, the busbar-side disconnector XXXX1 corresponding to that bay is the energized disconnector; otherwise, there is no energized disconnector on the busbar side, and so on for other busbars; where, in XXXX1, XXXX is the switch bay number, and 1 is the 1M energized busbar;

[0084] b. Determining whether the disconnector on the line side / main transformer side is energized: Determine whether the "grounding switch should be closed, grounding wire should be installed, and insulating baffle should be installed" column in the work order includes closing the grounding switch / grounding wire on the line side / main transformer side. If it does, then the disconnector on the line side / main transformer side is not energized; otherwise, the XXXX4 disconnector on the line side / main transformer side is energized. In XXXX4, XXXX is the switch bay number, and 4 refers to the line side / main transformer side.

[0085] Third, calculate the live conductors: After calculating the live busbars / lines / main transformers and live disconnect switches, the live lines, the live main transformer cross lines, and the connecting wires between the live busbars and the live disconnect switches are identified as live conductors.

[0086] Implementing the embodiments of the present invention has the following beneficial effects:

[0087] This invention provides an intelligent safety fence device and system for power equipment maintenance, which modifies existing intelligent safety fences for power equipment maintenance from both hardware and software aspects. In this invention, an infrared grating emitter, an infrared grating receiver, and multiple beams of mutually radiating infrared light protect the maintenance area. The infrared grating receiver is a purely wireless design, simple to wire, and easy to install, making it suitable for temporary installation of electronic fences at substation power equipment maintenance sites.

[0088] In this invention, the intelligent safety fence device connects to the power grid management platform via a mobile terminal. Based on the work order and electrical main wiring diagram, it identifies the energized busbars, energized disconnect switches, energized conductors, and safety precautions adjacent to the work site. It issues a warning voice through a voice prompt alarm and promptly issues an alarm when maintenance personnel cross the safety fence, thus preventing safety accidents during the maintenance of substation power equipment and improving the level of safety management at the construction site.

[0089] The intelligent safety fence device provided by this invention is suitable for installing safety fences at work sites during the maintenance of power equipment in substations, and can replace traditional safety fences and infrared electronic fences. The device has stable performance, simple structure, and good application prospects.

[0090] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the claims of the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit disclosed in the present invention should be included within the scope of the claims of the present invention.

Claims

1. An intelligent safety fence system for the maintenance of power equipment, characterized in that, At least including: Multiple intelligent safety fence devices are used to enclose the maintenance area of ​​electrical equipment. The infrared grating light-receiving device on each intelligent safety fence device is aligned with the infrared grating light-emitting device on the adjacent intelligent safety fence device, with each light-emitting hole corresponding to a light-receiving hole. Furthermore, a fence net is hung between adjacent intelligent safety fence devices. The mobile terminal communicates with the central manager of the intelligent safety fence device and the power grid management platform to receive power maintenance work orders and corresponding electrical main connection diagrams; calculates the adjacent live busbars, disconnect switches and conductors existing at the installation location of the safety fence, and generates corresponding live equipment prompt voice information to send to the intelligent safety fence device. And receive abnormal signals reported by the smart security fence device; The mobile terminal further includes: The work order receiving unit is used to receive power maintenance work orders and corresponding electrical main connection diagrams from the power grid management platform; The work order parsing unit is used to parse and obtain the contents of the "work location", "barriers to be installed, signs to be hung", and "grounding switch to be closed, grounding wire to be installed, and insulating baffle to be installed" columns in the work order; The equipment space resolution unit is used to establish a sequence table of equipment locations in the maintenance area by grouping equipment in the same interval into one column and equipment in the same row into one row, based on the electrical main connection diagram. The live information calculation unit is used to calculate the adjacent live busbars, disconnect switches and conductors at the installation location of the safety fence based on the content parsed by the work order parsing unit and the equipment position sequence table obtained by the equipment space parsing unit. The voice information generation unit is used to generate corresponding voice prompts for powered equipment based on the calculation results of the powered information calculation unit. The information transceiver unit is used to send the generated voice prompt information for live equipment to the intelligent safety fence device; and to receive abnormal signals reported by the intelligent safety fence device. The energized information calculation unit uses the following method to calculate the adjacent energized busbars, disconnect switches, and conductors present at the installation location of the safety fence: Based on the work location information required for the installation of safety fences, calculate the position (Xw, Yw) of the work location requiring fence installation on the substation equipment location sequence table. Then, calculate the energized busbars, disconnecting switches, and conductors based on Xw, Yw, and Yw respectively. Specifically: Step 1, calculate the energized busbar: Determine if the coordinates Yw of the work location column are greater than the coordinates Y of the road column. r If Y w <Y r Determine whether the disconnect switch listed in the "Disconnect switches to be opened" column of the work order includes A. 1m B 1m ....N 1m The isolating switch in the cell; if it is included, it is determined to be a non-energized busbar; otherwise, it is determined to be a energized busbar of XXXkV 1M; where 1m refers to the row coordinate of the 1M busbar, A, B...N refer to the column coordinates of each interval on the 1M busbar, and XXX is the voltage level; If Yw > Yr, determine whether the disconnector listed in the "Disconnectors to be opened" column of the work order includes A. 3m B 3m ....N 3m If the isolating switch in the cell is included, it is determined to be a non-energized busbar; otherwise, it is determined to be a energized busbar XXXkV 3M. Here, 3m refers to the row coordinate of the 3M bypass busbar; A, B...N refer to the column coordinates of each interval on the 3M busbar; and XXX is the voltage level. Step 2, calculate the live disconnect switch: a. Determine if the busbar-side disconnector is energized: After calculating the energized busbar, the busbar-side disconnector XXXX1 corresponding to that bay is the energized disconnector; otherwise, there is no energized disconnector on the busbar side, and so on for other busbars; where, in XXXX1, XXXX is the switch bay number, and 1 is the 1M energized busbar; b. Determining whether the disconnector on the line side / main transformer side is energized: Determine whether the "grounding switch should be closed, grounding wire should be installed, and insulating baffle should be installed" column in the work order includes closing the grounding switch / grounding wire on the line side / main transformer side. If it does, then the disconnector on the line side / main transformer side is not energized; otherwise, the XXXX4 disconnector on the line side / main transformer side is energized. In XXXX4, XXXX is the switch bay number, and 4 refers to the line side / main transformer side. Step 3, Calculate live conductors: After calculating the live busbars / lines / main transformers and live disconnect switches, identify the live lines, live main transformer cross lines, and the connecting conductors between the live busbars and live disconnect switches as live conductors.

2. The system as described in claim 1, characterized in that, The intelligent security fence device includes at least: The fence post has at least two sides that are perpendicular to each other, and an infrared grating light-emitting device and an infrared grating light-receiving device are respectively installed on the two sides; The fence base is used to fix the fence posts, and is equipped with an adjusting screw for adjusting the height. A central manager is located on top of the fence post and communicates at least with the infrared grating light-receiving device; A voice broadcaster is installed on the top of the fence post to play alerts for live equipment and intrusion alarm voice messages. Fence hooks are installed on other sides of the fence posts to hold the fence netting. The centralized manager further includes: A live equipment prompting unit is used to receive live equipment prompting voice information from the corresponding mobile device and control the voice broadcaster to broadcast periodically. An alarm processing unit is used to pause the content broadcast by the voice broadcaster and control the voice broadcaster to broadcast intrusion alarm voice information when it receives an abnormal signal sent by the infrared grating light receiving device. An alarm sending unit is used to send the abnormal signal to the mobile terminal.

3. The system as described in claim 2, characterized in that, The fence hook consists of two L-shaped hooks, one above the other, located on at least one side; the infrared grating light-emitting device has a row of light-emitting holes; and the infrared grating light-receiving device has a row of light-receiving holes.

4. The system as described in claim 3, characterized in that, The infrared grating light-receiving device communicates with the central manager through its built-in LORA communication module.

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