Beidou high-voltage near electric pre-warning device and method

Abstract

The application discloses a Beidou high-voltage near-electricity early warning device and method, relates to the technical field of near-electricity early warning, and comprises a near-electricity induction module which comprises an electromagnetic induction unit, a first power unit and a wireless transmitting unit; a near-electricity warning module connected with the near-electricity induction module; and a terminal module connected with the near-electricity warning module.The electromagnetic induction module is installed on a mobile machine, full-coverage active early warning of a mobile danger source is realized, and the industry pain point that a traditional fixed monitoring mode cannot cover cranes, pump trucks and other movable large machines is solved.When the machine enters a safe distance of a high-voltage transmission line, a non-contact power frequency electric field induction immediately triggers an audible and visual warning, so that electric shock accidents are avoided from the root; continuous and reliable near-electricity protection can be provided at any work site, the monitoring blind area of the mobile danger source is filled, and the protection level of the transmission line against external force damage is significantly improved.

Description

Technical Field

[0001] This invention relates to near-voltage early warning technology, and in particular to a BeiDou high-voltage near-voltage early warning device and method. Background Technology

[0002] In the field of protecting high-voltage transmission lines from external damage, proximity warning technology is mainly used to detect whether mobile machinery has entered the safe distance range of energized lines, in order to avoid line tripping, equipment damage, and personal injury accidents caused by machinery touching the line. Currently, this field mainly faces the following technical challenges: First, fixed proximity monitoring equipment can only be deployed at known, fixed hazard points and cannot be moved with the changing locations of mobile hazards such as cranes, pump trucks, and dump trucks. This results in a lack of effective proximity warning protection for a large number of mobile machines operating in non-fixed areas. Second, manual inspections suffer from insufficient coverage, numerous blind spots, and delayed response. Furthermore, drivers' inability to accurately judge safe distances from overhead lines greatly increases the risk of accidental contact with conductors, leading to line tripping, equipment damage, and even electric shock injuries or fatalities. Therefore, there is an urgent need to develop a mobile high-voltage proximity warning device with voltage level self-adaptation, BeiDou positioning, and remote monitoring capabilities. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is: the existing fixed monitoring equipment cannot be moved with mobile hazard sources such as cranes and pump trucks, resulting in a lack of effective early warning when a large number of mobile machinery are in operation.

[0004] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes a Beidou high voltage near-electric warning device, which includes a near-electric induction module installed on a dangerous source, comprising an electromagnetic induction unit, a first power supply unit and a wireless transmission unit connected in sequence to the output end of the electromagnetic induction unit; A proximity alarm module connected to the proximity sensing module is used to receive the trigger signal from the electromagnetic induction unit and issue an audible and visual alarm. A terminal module connected to the proximity alarm module, the terminal module being used to receive and store alarm events and locations; The electromagnetic induction unit is used to sense in-operation power lines and to issue a warning signal when an in-operation power line is sensed. The wireless transmitting unit is used to transmit warning signals to the proximity alarm module.

[0005] In a preferred embodiment of the Beidou high-voltage near-ground warning device of the present invention: the near-ground alarm module includes a wireless receiving unit connected to the wireless transmitting unit, an audible and visual alarm unit connected to one side of the wireless receiving unit, a positioning unit, and a remote communication unit; the audible and visual alarm unit is used to receive signals from the wireless receiving unit and issue audible and visual alarms.

[0006] In a preferred embodiment of the Beidou high voltage proximity early warning device of the present invention: the proximity sensing module has an independent first housing, and the back of the first housing is provided with a strong magnetic adsorption part and a strap fixing part; the electromagnetic induction unit, the first power supply unit and the wireless transmission unit are disposed inside the first housing.

[0007] In a preferred embodiment of the Beidou high-voltage near-ground warning device of the present invention: the near-ground alarm module has an independent second housing, and the second housing is provided with an installation module; the installation module includes a mounting seat fixed in the cab and a connecting seat connected to the second housing; The mounting base has a slot, and the connecting base has a mounting cavity, in which a retaining spring and a retaining post connected to the retaining spring are provided.

[0008] In a preferred embodiment of the Beidou high voltage near-electricity early warning device of the present invention: the abutting post extends into the slot and engages under the action of the abutting spring; the mounting base is also provided with a button corresponding to the slot, the button being used to press the abutting post back into the mounting cavity to release the engagement.

[0009] In a preferred embodiment of the Beidou high voltage near-electricity early warning device of the present invention: the supporting column includes an outer cylinder fixedly connected to the connecting seat, and an inner rod slidably disposed in the outer cylinder; The other end of the inner rod is connected to the abutment post, and the abutment spring is sleeved on the outside of the inner rod.

[0010] In a preferred embodiment of the Beidou high-voltage near-ground early warning device of the present invention: the terminal module includes an alarm information recording module and an alarm location positioning module. The alarm information recording module and the alarm location positioning module are respectively connected to the remote communication unit; The alarm information recording module is used to display and record data of the power lines in operation; The alarm location positioning module is used to display the location information of the operating power line.

[0011] A BeiDou high-voltage near-ground early warning method is also provided, including the following steps: The electromagnetic induction unit installed on the mobile hazard source senses the power frequency electric field of the surrounding operating power lines and obtains the power frequency induced voltage signal. The power frequency induced voltage signal is digitally filtered sequentially to obtain the DC detection voltage; The DC detection voltage is compared with a preset threshold voltage. If the threshold voltage is reached or exceeded, an alarm signal is triggered. The alarm signal is transmitted to the proximity alarm module via a wireless transmission unit; After receiving the alarm signal, the proximity alarm module simultaneously executes audible and visual alarms, collects BeiDou positioning information, and uploads it to the management platform.

[0012] In a preferred embodiment of the BeiDou high-voltage proximity early warning method of the present invention, the DC detection voltage is described. ;in The effective value of the power frequency induced voltage signal is... This is the equivalent gain constant of the signal processing link; By adjusting the equivalent gain constant By changing the critical alarm value, the same electromagnetic induction unit can be adapted to operating power lines with different voltage levels.

[0013] In a preferred embodiment of the BeiDou high-voltage near-electricity early warning method of the present invention: the near-electricity alarm module reads the current geographic coordinates of the BeiDou positioning unit within the same interruption period after receiving the alarm signal, and spatiotemporally correlates the alarm signal, geographic coordinates and timestamp to generate a spatiotemporally correlated alarm record and uploads it to the management platform.

[0014] The beneficial effects of this invention are as follows: By installing an electromagnetic induction module on mobile machinery, this invention achieves full-coverage proactive early warning of mobile hazards, solving the industry pain point that traditional fixed monitoring methods cannot cover large mobile machinery such as cranes and pump trucks. When the machinery enters the safe distance of high-voltage transmission lines, the non-contact power frequency electric field induction immediately triggers an audible and visual alarm, allowing the driver to respond immediately and thus preventing electric shock accidents at the source. At the same time, the device can be flexibly moved with the machinery, providing continuous and reliable proximity protection at any work location, filling the blind spots in the monitoring of mobile hazards, and significantly improving the protection level of transmission lines against external damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the principle of the Beidou high-voltage near-ground early warning device of the present invention is shown; Figure 2 A schematic diagram of the proximity alarm module of the present invention is shown; Figure 3 A schematic diagram of the overall structure of the Beidou high-voltage near-ground early warning device of the present invention is shown; Figure 4 An exploded schematic diagram of the structure of the Beidou high-voltage near-field early warning device of the present invention is shown; Figure 5 A full cross-sectional schematic diagram of the structure of the Beidou high-voltage near-electricity early warning device of the present invention is shown. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0018] Reference Figures 1-2 This embodiment provides a Beidou high voltage proximity warning device, including a proximity sensing module 1 installed on a dangerous source, which includes an electromagnetic induction unit 11, a first power supply unit 12 and a wireless transmission unit 13 connected in sequence to the output end of the electromagnetic induction unit 11. The proximity alarm module 2 is connected to the proximity sensing module 1. The proximity alarm module 2 is used to receive the trigger signal of the electromagnetic induction unit 11 and issue an audible and visual alarm. The terminal module 3 is connected to the proximity alarm module 2. The terminal module 3 is used to receive and store alarm events and locations. The electromagnetic induction unit 11 is used to sense the operating power lines and to issue a warning signal when it senses the operating power lines. The wireless transmitting unit 13 is used to transmit warning signals to the proximity alarm module 2.

[0019] Furthermore, the proximity alarm module 2 includes a wireless receiving unit 21 connected to the wireless transmitting unit 13, an audible and visual alarm unit 22 connected to one side of the wireless receiving unit 21, a positioning unit 23, and a remote communication unit 24; the audible and visual alarm unit 22 is used to receive signals from the wireless receiving unit 21 and issue an audible and visual alarm.

[0020] Furthermore, terminal module 3 includes an alarm information recording module 31 and an alarm location positioning module 32. The alarm information recording module 31 and the alarm location positioning module 32 are respectively connected to the remote communication unit 24; Alarm information recording module 31 is used to display and record data of power lines in operation; The alarm location positioning module 32 is used to display the location information of the operating power line.

[0021] In this embodiment, the proximity sensing module 1 is installed on the highest metal component of a mobile hazard source, such as a crane, pump truck, dump truck, or other large construction machinery, to sense the power frequency electric field of the surrounding high-voltage power lines and send a warning signal; the proximity alarm module 2 is installed in the driver's cab or a fixed duty station to receive the warning signal and issue an audible and visual alarm; and the terminal module 3 is deployed on a remote server to receive and store alarm events and location information for real-time monitoring by management personnel.

[0022] The proximity sensing module 1 includes an electromagnetic induction unit 11, a first power supply unit 12, and a wireless transmission unit 13. The output terminal of the electromagnetic induction unit 11 is connected to both the input terminal of the first power supply unit 12 and the trigger terminal of the wireless transmission unit 13. The output terminal of the first power supply unit 12 provides operating voltage to both the electromagnetic induction unit 11 and the wireless transmission unit 13. The electromagnetic induction unit 11 is used for non-contact sensing of power frequency electric fields. When it senses that the power frequency voltage generated by the operating power line exceeds an internal preset threshold, it outputs a warning signal. Upon receiving the warning signal, the wireless transmission unit 13 immediately transmits the signal wirelessly.

[0023] The electromagnetic induction unit 11 consists of multiple layers of conductive materials, such as copper foil, forming the induction electrode, and is covered by an insulating protective shell. The electromagnetic induction unit 11 uses a power frequency electric field induction antenna or a capacitive voltage divider sensor, and its output is directly connected to the signal input of the wireless transmission unit 13. The electromagnetic induction unit 11 is used to sense a 50Hz / 60Hz power frequency electric field and outputs a weak power frequency induced voltage signal.

[0024] When the power frequency induced voltage exceeds the internally preset threshold, the output terminal of the electromagnetic induction unit 11 outputs a trigger signal, such as a TTL high level. The threshold can be adjusted to accommodate different voltage levels from 10kV to 1000kV by adjusting the adjustable resistor in the gain adjustment circuit.

[0025] The proximity alarm module 2 includes a wireless receiving unit 21, an audible and visual alarm unit 22, a positioning unit 23, and a remote communication unit 24. The wireless receiving unit 21 is connected to the wireless transmitting unit 13 via a wireless channel and is used to receive warning signals.

[0026] The output of the wireless receiving unit 21 is connected to the trigger input of the audible and visual alarm unit 22 and the wake-up input of the positioning unit 23, respectively. The audible and visual alarm unit 22 has a built-in voice chip and a strobe light, used to issue voice prompts such as "Danger of Electricity" and flash red lights. The positioning unit 23 is a Beidou positioning module, used to collect the current geographic coordinates after receiving the trigger signal. The remote communication unit 24 is connected to both the positioning unit 23 and the wireless receiving unit 21, used to upload alarm events and location information through the mobile communication network.

[0027] Preferably, the audible and visual alarm unit 22 includes a voice chip, a power amplifier circuit, a speaker, and a red strobe light. The voice chip pre-stores the voice data "Danger of Electricity, Danger of Electricity," and its trigger input is connected to the output of the wireless receiver unit 21. When a trigger signal is received, the voice chip outputs a DAC audio signal, which is then transmitted to the speaker to issue a voice alarm. Simultaneously, the driver circuit of the red strobe light is energized, causing the LED array to flash at a frequency of 90 to 150 times per minute.

[0028] Terminal module 3 includes an alarm information recording module 31 and an alarm location positioning module 32. Both the alarm information recording module 31 and the alarm location positioning module 32 are connected to the remote communication unit 24 via a mobile network. The alarm information recording module 31 is used to receive and store data such as alarm time, alarm count, and device number; the alarm location positioning module 32 is used to display the geographical location of the alarm in real time on an electronic map, supporting historical trajectory playback and heat map analysis.

[0029] In this embodiment, when the mobile machinery enters within the safe distance of the high-voltage transmission line, the electromagnetic induction unit 11 senses the power frequency voltage signal, and outputs a warning signal after being judged by the internal comparison circuit. The wireless transmission unit 13 is triggered to transmit a wireless data frame containing the device ID. After receiving the data frame, the wireless receiving unit 21 simultaneously performs the following actions: on the one hand, it triggers the audible and visual alarm unit 22 to issue an audible and visual alarm to remind the driver to stop the operation; on the other hand, it wakes up the positioning unit 23 to instantly collect the Beidou coordinates and controls the remote communication unit 24 to package and upload the alarm time, location, and device information to the terminal module 3. The alarm information recording module 31 stores the data in the database, the alarm location positioning module 32 marks the alarm point on the map, and pushes the alarm notification to the management personnel's mobile APP.

[0030] Reference Figures 3-5 As an optional embodiment, in one embodiment provided by the present invention, the proximity sensing module 1 is further provided with an independent first housing 4, the back of the first housing 4 is provided with a strong magnetic adsorption part 41 and a strap fixing part 42; the electromagnetic induction unit 11, the first power supply unit 12 and the wireless transmission unit 13 are disposed in the first housing 4.

[0031] Furthermore, the proximity alarm module 2 has an independent second housing 5, on which a mounting module 6 is provided; the mounting module 6 includes a mounting base 61 fixed in the cab and a connecting base 62 connected to the second housing 5; The mounting base 61 has a slot 611, and the connecting base 62 has a mounting cavity 621. The mounting cavity 621 is provided with a retaining spring 622 and a retaining post 623 connected to the retaining spring 622.

[0032] Furthermore, the abutment post 623 extends into the slot 611 and engages under the action of the abutment spring 622; the mounting base 61 is also provided with a button 612 corresponding to the slot 611, the button 612 is used to press the abutment post 623 back into the mounting cavity 621 to release the engagement.

[0033] Furthermore, the abutment post 623 includes an outer cylinder 6231 fixedly connected to the connecting seat 62, and an inner rod 6232 slidably disposed within the outer cylinder 6231; The other end of the inner rod 6232 is connected to the abutment post 623, and the abutment spring 622 is sleeved on the outside of the inner rod 6232.

[0034] In this embodiment, the proximity sensing module 1 has an independent first housing 4. The back of the first housing 4 is provided with a strong magnetic adsorption part 41 and a strap fixing part 42. The strong magnetic adsorption part 41 uses a neodymium iron boron strong magnet to adsorb the first housing 4 onto the iron surface of mobile machinery such as a crane arm or a vehicle frame. The strap fixing part 42 is a strip groove or buckle that passes through the first housing 4, which, together with a nylon strap, further binds and fixes the first housing 4 to prevent it from falling off due to construction vibration.

[0035] The electromagnetic induction unit 11, the first power supply unit 12, and the wireless transmission unit 13 are all sealed and installed inside the first housing 4. The units are electrically connected to each other through flexible circuit boards or wires according to the aforementioned connection relationship.

[0036] The proximity alarm module 2 has an independent second housing 5, on which a mounting module 6 is provided. The mounting module 6 includes a mounting base 61 fixed to the cab and a connecting base 62 fixedly connected to the second housing 5. The mounting base 61 is fixed to a flat surface near the dashboard or windshield of the cab by bolts or adhesive, and has a slot 611. The connecting base 62 has a mounting cavity 621, within which a retaining spring 622 and a retaining post 623 connected to the retaining spring 622 are provided. The retaining post 623 can extend and retract along the axial direction of the mounting cavity 621, and its outer end extends out of the mounting cavity 621 under the elastic force of the retaining spring 622 and engages in the slot 611 of the mounting base 61, thereby locking the connecting base 62 to the mounting base 61. The mounting base 61 also has a button 612 corresponding to the position of the slot 611. The button 612 is slidably disposed in the mounting base 61, with one end protruding from the outer surface of the mounting base 61 and the other end communicating with the slot 611. When button 612 is pressed, button 612 pushes the retaining post 623 to overcome the elastic force of the retaining spring 622 and retract into the mounting cavity 621, so that the retaining post 623 is disengaged from the slot 611, and the connecting seat 62 can be pulled out from the mounting seat 61, realizing the quick disassembly of the proximity alarm module 2.

[0037] Furthermore, the supporting post 623 includes an outer cylinder 6231 fixedly connected to the connecting seat 62, and an inner rod 6232 slidably disposed within the outer cylinder 6231. The open end of the outer cylinder 6231 faces the slot 611. One end of the inner rod 6232 extends from the outer cylinder 6231 and is integrally formed or fixedly connected to the end of the supporting post 623. The other end of the inner rod 6232 is located inside the outer cylinder 6231 and is provided with a limiting flange. The supporting spring 622 is sleeved on the outside of the inner rod 6232, with one end abutting against the inner wall of the outer cylinder 6231 and the other end abutting against the limiting flange of the inner rod 6232. This structure ensures the guiding accuracy and spring force stability when the supporting post 623 extends and retracts, preventing accidental disengagement due to vibration.

[0038] In this embodiment, when installing the proximity warning module 2, first fix the mounting base 61 in a suitable position in the cab, then align the mounting cavity 621 of the connecting base 62 with the slot 611 of the mounting base 61 and push it in. During the pushing process, the abutment post 623 is automatically compressed by the edge of the slot 611, causing the abutment spring 622 to retract. When the connecting base 62 is fully in place, the abutment post 623 automatically springs into the slot 611 under the spring force, completing the locking. For disassembly, simply press the button 612, and the abutment post 623 is pressed back into the mounting cavity 621, allowing the proximity warning module 2 to be easily removed. This quick-release structure facilitates the rotation of the device between multiple vehicles or routine maintenance and charging.

[0039] Furthermore, both the first housing 4 and the second housing 5 are injection molded from high-strength engineering plastics, and silicone sealing rings are provided at the seams of the housings. The overall protection level reaches IP65, which can withstand harsh outdoor environments such as rain, snow, and dust. The surface of the strong magnetic adsorption part 41 can be covered with an anti-slip rubber layer to increase adsorption stability and prevent scratches on the equipment's paint surface. The strap fixing part 42 can be provided in two symmetrical sets to accommodate the binding and fixing of robotic arms of different diameters.

[0040] As an optional embodiment, one embodiment of the present invention further includes a BeiDou high-voltage near-ground early warning method, comprising the following steps: The electromagnetic induction unit installed on the mobile hazard source senses the power frequency electric field of the surrounding operating power lines and obtains the power frequency induced voltage signal. In this embodiment, an electromagnetic induction unit is installed at the top of the boom of a mobile machine, such as a crane. This electromagnetic induction unit employs a non-contact power frequency electric field sensor. Its internal conductive layer induces a 50Hz / 60Hz power frequency voltage signal when near a high-voltage line, such as a 110kV or 220kV line. The sensor output receives this induced power frequency voltage signal, denoted as... .

[0041] The power frequency induced voltage signal is digitally filtered sequentially to obtain the DC detection voltage; Preferably, the power frequency induced voltage signal The signal is fed into the signal processing link. It first passes through a 50Hz~60Hz bandpass digital filter to remove DC components, high-frequency harmonics, and electrostatic interference, extracting the pure power frequency component. Then, it undergoes amplification, full-wave detection, and time-delay filtering. The amplification stage uses a programmable gain amplifier (PGA) with a gain constant of [missing information]. It can be adjusted via an external range switch. The processed signal is ultimately converted into a smooth DC detection voltage. Satisfying the relationship ,in This is the effective value of the power frequency induced voltage signal.

[0042] The DC detection voltage is compared with a preset threshold voltage. If the threshold voltage is reached or exceeded, an alarm signal is triggered. Preferably, a threshold voltage is preset in the microcontroller inside or outside the electromagnetic induction unit. This threshold corresponds to a safe critical distance of 7 meters at a certain voltage level, such as 110kV. The DC detection voltage obtained in step two... and Compare. If This indicates that the mechanical distance from the high-voltage line is still within a safe range; monitoring should continue. If the distance is too large, it is determined that the person has entered a dangerous distance and an alarm signal is immediately triggered.

[0043] It should be noted that by adjusting the equivalent gain constant... For example, switching the resistor network or changing the amplifier gain can alter the critical alarm value, thus allowing the same electromagnetic induction unit to be adapted to lines with different voltage levels from 10kV to 1000kV. For instance, when switching to the 220kV setting... The value decreases, so that the threshold can be reached at a greater distance, such as 8 meters.

[0044] The alarm signal is sent to the proximity alarm module via a wireless transmitter unit; Preferably, after the alarm signal is triggered, the wireless transmission unit operates in the 433MHz ISM band and transmits the encoded alarm data frame, containing the device ID and alarm type, using ASK / OOK modulation. The transmission power is set to ≥11dBm to ensure an effective communication distance of at least 50 meters with the proximity alarm module in the driver's cab.

[0045] The proximity alarm module, installed in the driver's cab, has a built-in wireless receiver unit that monitors the wireless channel in real time. Upon receiving a valid alarm data frame, the wireless receiver unit immediately generates an interrupt signal. Within the same interrupt cycle, i.e., within a microsecond-level time window, the microcontroller of the proximity alarm module performs the following operations: firstly, it activates the audible and visual alarm unit; secondly, it reads the current geographic coordinates (longitude and latitude) output by the BeiDou positioning unit's single BeiDou module and obtains the current timestamp from a real-time clock or network time server. The microcontroller combines and encapsulates the alarm signal, geographic coordinates, and timestamp to generate a spatiotemporally correlated alarm record. This record includes fields such as device number, alarm type, occurrence time, longitude, and latitude. After receiving the alarm signal, the proximity alarm module simultaneously executes audible and visual alarms, collects BeiDou positioning information, and uploads it to the management platform.

[0046] Preferably, the microcontroller of the proximity alarm module simultaneously drives the audible and visual alarm unit: the voice chip plays a voice prompt saying "Danger of electricity, please stay away," while the red strobe light flashes at a rate of 90-150 times per minute. Upon hearing the alarm, the operator immediately stops operation and moves the robotic arm away from the high-voltage line.

[0047] Meanwhile, the microcontroller uploads the spatiotemporal correlation alarm records generated in step five to the cloud management platform via the 4G communication module, enabling full network connectivity. Upon receiving the records, the management platform stores them in its database and displays the alarm points in real-time on an electronic map, generating alarm trajectories. Administrators can view the historical records and spatial distribution of alarm events via a web interface or mobile app, enabling trajectory reconstruction and source tracing analysis.

[0048] Furthermore, DC detection voltage ;in This is the effective value of the power frequency induced voltage signal. This is the equivalent gain constant of the signal processing link; By adjusting the equivalent gain constant By changing the critical alarm value, the same electromagnetic induction unit can be adapted to operating power lines with different voltage levels.

[0049] Furthermore, the proximity alarm module reads the current geographic coordinates of the BeiDou positioning unit within the same interruption cycle after receiving the alarm signal, and then spatiotemporally correlates the alarm signal, geographic coordinates, and timestamp to generate a spatiotemporally correlated alarm record before uploading it to the management platform.

[0050] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A Beidou high-voltage close-to-electricity early warning device, characterized in that: include, The proximity sensing module (1) installed on the hazard source includes an electromagnetic induction unit (11), a first power supply unit (12) connected in sequence to the output end of the electromagnetic induction unit (11), and a wireless transmission unit (13). A proximity alarm module (2) connected to the proximity sensing module (1) is used to receive the trigger signal of the electromagnetic induction unit (11) and issue an audible and visual alarm. A terminal module (3) connected to the proximity alarm module (2) is used to receive and store alarm events and locations; The electromagnetic induction unit (11) is used to sense the operating power line and issue a warning signal when it senses the operating power line. The wireless transmitting unit (13) is used to transmit warning signals to the proximity alarm module (2).

2. The Beidou high-voltage proximity early warning device according to claim 1, characterized in that: The proximity alarm module (2) includes a wireless receiving unit (21) connected to the wireless transmitting unit (13), an audible and visual alarm unit (22) connected to one side of the wireless receiving unit (21), a positioning unit (23), and a remote communication unit (24); the audible and visual alarm unit (22) is used to receive signals from the wireless receiving unit (21) and issue an audible and visual alarm.

3. The Beidou high-voltage proximity early warning device according to claim 2, characterized in that: The proximity sensing module (1) has an independent first housing (4), and the back of the first housing (4) is provided with a strong magnetic adsorption part (41) and a strap fixing part (42); the electromagnetic induction unit (11), the first power supply unit (12) and the wireless transmission unit (13) are located inside the first housing (4).

4. The Beidou high-voltage proximity early warning device according to claim 3, characterized in that: The proximity alarm module (2) has an independent second housing (5), on which a mounting module (6) is provided; the mounting module (6) includes a mounting seat (61) fixed in the cab and a connecting seat (62) connected to the second housing (5). The mounting base (61) has a slot (611), and the connecting base (62) has a mounting cavity (621). The mounting cavity (621) is provided with a retaining spring (622) and a retaining post (623) connected to the retaining spring (622).

5. The Beidou high-voltage proximity early warning device according to claim 4, characterized in that: The abutting post (623) extends into the slot (611) and engages under the action of the abutting spring (622); the mounting base (61) is also provided with a button (612) corresponding to the slot (611), the button (612) is used to press the abutting post (623) back into the mounting cavity (621) to release the engagement.

6. The Beidou high-voltage proximity early warning device according to claim 5, characterized in that: The abutment post (623) includes an outer cylinder (6231) fixedly connected to the connecting seat (62), and an inner rod (6232) slidably disposed in the outer cylinder (6231). The other end of the inner rod (6232) is connected to the abutment post (623), and the abutment spring (622) is sleeved on the outside of the inner rod (6232).

7. The Beidou high-voltage proximity early warning device according to claim 2, characterized in that: The terminal module (3) includes an alarm information recording module (31) and an alarm location positioning module (32). The alarm information recording module (31) and the alarm location positioning module (32) are respectively connected to the remote communication unit (24); The alarm information recording module (31) is used to display and record data of the power lines in operation; The alarm location positioning module (32) is used to display the location information of the operating power line.

8. A Beidou high-voltage close-to-electricity early warning method, characterized in that: Includes the BeiDou high-voltage near-ground early warning device as described in any one of claims 1 to 7, and the following steps; The electromagnetic induction unit installed on the mobile hazard source senses the power frequency electric field of the surrounding operating power lines and obtains the power frequency induced voltage signal. The power frequency induced voltage signal is digitally filtered sequentially to obtain the DC detection voltage; The DC detection voltage is compared with a preset threshold voltage. If the threshold voltage is reached or exceeded, an alarm signal is triggered. The alarm signal is transmitted to the proximity alarm module via a wireless transmission unit; After receiving the alarm signal, the proximity alarm module simultaneously executes audible and visual alarms, collects BeiDou positioning information, and uploads it to the management platform.

9. The BeiDou high-voltage proximity early warning method according to claim 8, characterized in that: the direct current detection voltage ; wherein is the effective value of the power frequency induced voltage signal, is the equivalent gain constant of the signal processing chain. by adjusting said equivalent gain constant changing the critical alarm value, so that the same electromagnetic induction unit is adapted to power lines in operation of different voltage levels.

10. The BeiDou high-voltage proximity early warning method according to claim 9, characterized in that: The near-power alarm module reads the current geographic coordinates of the BeiDou positioning unit within the same interruption period after receiving the alarm signal, and then spatiotemporally correlates the alarm signal, geographic coordinates, and timestamp to generate a spatiotemporally correlated alarm record before uploading it to the management platform.

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