A safety protection system for cranes to prevent them from touching high-voltage lines

Abstract

This invention provides a crane safety protection system to prevent contact with high-voltage power lines, comprising: a Beidou positioning module, an electronic fence for the power transmission line, a voice alarm, and a controller. The Beidou positioning module is installed at the highest point of the crane boom. The electronic fence for the power transmission line is set in the warning area of ​​the high-voltage power line. The voice alarm is installed in the crane cab and connected to the controller. The controller compares the acquired boom position information with the warning range of the electronic fence to determine whether the boom position information has entered the warning range of the electronic fence. If it has entered the warning range, an alarm is triggered. The system can serve as a warning for crane operations around high-voltage power lines, providing safety protection against crane contact with high-voltage power lines, protecting the safety of crane operators, and preventing power outages caused by crane misoperation.

Description

Technical Field

[0001] The present invention relates to the technical field of crane safety, and in particular to a crane safety protection system to prevent it from touching a high-voltage line. Background Art

[0002] At present, cranes are used for hoisting operations in some project operations. Sometimes during hoisting operations, there will be high-voltage lines or some overhead lines in the hoisting area. During the operation of the crane, the boom will extend to a certain height and length to meet the hoisting needs. If the high-voltage line or overhead line is touched during the hoisting process, the line will not operate normally and the personal safety of the operator will be endangered.

[0003] In the prior art, ground monitoring personnel are generally used to direct the lifting operation, and try to stay away from the lines to avoid touching them. However, since some high-voltage lines are dangerous and can cause harm even if they are not touched, simply relying on personnel command cannot ensure the safety of the operation, leaving certain safety hazards to the operation. Summary of the invention

[0004] The present invention provides a safety protection system for cranes to prevent them from touching high-voltage lines. The system has preventive measures, can ensure the safe operation of power transmission lines, avoid electric shocks on cranes, and ensure the personal safety of operators.

[0005] The system includes: Beidou positioning module, transmission line electronic fence, voice alarm and controller;

[0006] The Beidou positioning module is installed at the highest point of the crane boom. The Beidou positioning module locates the position information of the boom and transmits the position information to the controller;

[0007] The electronic fence of the transmission line is set in the warning area of ​​the high-voltage line and connected to the controller, and the controller obtains the warning range of the electronic fence of the transmission line;

[0008] The voice alarm is installed in the crane cab and connected to the controller. The controller compares the acquired boom position information with the warning range of the electronic fence of the transmission line to determine whether the boom position information enters the warning range of the electronic fence of the transmission line.

[0009] If you enter the warning range of the electronic fence of the power transmission line, an alarm will be given through the voice alarm.

[0010] It is further necessary to explain that the warning range of the electronic fence of the power transmission line has a working area, a danger area and a serious danger area;

[0011] The danger zone is a warning zone;

[0012] The serious danger area is the warning area.

[0013] The Beidou positioning module positions the boom, including: positioning the horizontal position information of the boom and positioning the height information of the boom.

[0014] The warning range of the transmission line electronic fence includes: height warning range and horizontal warning range.

[0015] It should be further explained that the controller compares and determines the acquired boom horizontal position information and height information with the height warning range and the horizontal warning range respectively;

[0016] If the horizontal position information or height information of the boom enters the warning range of the electronic fence of the transmission line, an alarm will be given through the voice alarm.

[0017] It should be further explained that it also includes: a running speed acquisition module;

[0018] The running speed acquisition module is connected to the crane boom driving mechanism, and the running speed acquisition module is used to acquire the running speed of the crane boom and transmit the running speed to the controller;

[0019] The controller detects that the boom has entered the warning range of the electronic fence of the transmission line, and at the same time, issues an alarm through the voice alarm. At the same time, the controller sends a braking control command to the crane vehicle controller and controls the crane boom to slow down and stop running.

[0020] The Beidou positioning module, the transmission line electronic fence and the voice alarm are respectively connected to the controller in communication with each other through wireless communication.

[0021] It is further necessary to explain that the transmission line electronic fence is connected to an electronic fence control circuit;

[0022] The electronic fence control circuit includes: a first transformer T1, a rectifier module U1, a resistor R1, a resistor R2, a resistor R3, an adjustment resistor RP, a diode VS, a thyristor VT, a capacitor C1, a capacitor C2 and a second transformer T2;

[0023] The input side of the first transformer T1 is connected to the power supply, and the output side of the first transformer T1 is connected to the input end of the rectifier module U1; the first output end of the rectifier module U1 is respectively connected to the first end of the resistor R1 and the first end of the capacitor C1; the second end of the rectifier module U1, the second end of the capacitor C1, the second end of the resistor R3, the cathode of the thyristor VT, the second output end and the second input end of the second transformer T2 are respectively grounded;

[0024] The resistor R1 is connected to the second end of the resistor R2 and the first end of the capacitor C2 respectively; the first end of the resistor R2 is connected to the first end of the regulating resistor RP through the diode VS; the second end of the regulating resistor RP is connected to the first end of the resistor R3, the regulating end of the regulating resistor RP and the trigger end of the thyristor VT respectively; the second end of the capacitor C2 is connected to the first input end of the second transformer T2;

[0025] The first output end of the second transformer T2 is connected to the transmission line electronic fence to supply power to the transmission line electronic fence.

[0026] It should be further explained that the controller is arranged in the cab, and the controller is connected to a touch display screen;

[0027] The controller is in communication connection with the regulating end of the regulating resistor RP, obtains the pulse voltage setting instruction set by the user through the touch display screen, and controls the regulating resistor RP to adjust the pulse voltage of the transmission line electronic fence;

[0028] The touch screen display is also used to display the operating status of the system.

[0029] It is further necessary to explain that there are multiple proximity sensors installed on the crane boom;

[0030] When the crane boom approaches the electronic fence of the power transmission line, the proximity sensor triggers a proximity induction signal and sends the proximity induction signal to the controller, which then issues an alarm through a voice alarm.

[0031] It can be seen from the above technical solutions that the present invention has the following advantages:

[0032] The system uses Beidou positioning technology to draw electronic fences for transmission lines. The electronic fences for transmission lines include plane fences and height fences. The Beidou positioning receiver installed at the top of the crane or crane boom is used to detect the position of the highest point of the boom. Once the boom position enters the electronic fence area drawn in advance, an alarm is issued through the voice alarm system in the crane control room to remind operators to pay attention to safety.

[0033] Beidou positioning technology can achieve high-precision ground positioning. By using Beidou's ground-based augmentation system and differential information for high-precision positioning solutions, sub-meter-level real-time positioning can be achieved, overcoming the shortcomings of low accuracy and transmission delay of civilian GPS positioning, and is very suitable for real-time sub-meter-level positioning of crane booms. Beidou navigation and positioning technology is used to set up electronic fences for key transmission lines. The electronic fences set up are distinguished according to different fence levels, warning distances, and line height information according to transmission lines of different voltage levels, and are preset with the help of the power supply company's transmission line corridors, voltage levels, and tower location information. For example, the electronic fence area of ​​the transmission line electronic fence is set as a safe area, a warning area, and a prohibited area, which are divided into a plane fence and a height fence.

[0034] A Beidou positioning receiver is installed at the highest point of the crane boom to achieve real-time sub-meter-level high-precision positioning. Considering the operating speed of the crane boom, the corresponding alarm information should also be real-time. The distance and height of the transmission line fence also fully consider the moving speed of the crane boom. The Beidou positioning receiver installed at the highest point of the boom and the voice alarm in the crane control room are transmitted by wireless link to ensure that the operators in the crane control room can hear the voice alarm information of the Beidou positioning system in time and make correct operations to avoid electric shock accidents.

[0035] The present invention is based on Beidou high-precision positioning technology, which can serve as a warning for lifting machinery operations around high-voltage transmission lines. It is used for safety protection of cranes to prevent them from touching high-voltage lines, protect the safety of lifting machinery operators, and avoid tripping accidents of high-voltage transmission lines caused by misoperation of lifting machinery.

[0036] The crane anti-touch high-voltage line safety protection system involved in the present invention has high positioning accuracy and fast impact speed, and can greatly reduce electric shock accidents of construction machinery under the transmission line.

[0037] The crane anti-touch high-voltage line safety protection system involved in the present invention can be used as a convenient positioning device and voice alarm device, which can be easily installed at the end of the boom of the lifting machinery and in the operation control room. It is very convenient to install and is convenient for construction of lifting equipment under the transmission line line.

[0038] The crane anti-touching high-voltage line safety protection system involved in the present invention uses the Beidou positioning system to set up electronic fences for high-voltage transmission lines in advance, and sets electronic fences at different distances according to transmission lines of different voltage levels to ensure the safety of the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0040] Figure 1 This is a schematic diagram of the crane's safety protection system to prevent it from touching high-voltage lines;

[0041] Figure 2 This is a schematic diagram of an embodiment of a safety protection system for cranes to prevent them from touching high-voltage lines;

[0042] Figure 3 This is a schematic diagram of an embodiment of an electronic fence for a transmission line. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The units and algorithm steps of each example described in the disclosed embodiment of the crane anti-touch high-voltage line safety protection system provided by the present invention can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0045] In the crane anti-touch high-voltage line safety protection system provided by the present invention, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiment described above is only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0046] like Figures 1 to 3As shown, the crane anti-touch high-voltage line safety protection system provided by the present invention includes: a Beidou positioning module 1, a transmission line electronic fence 2, a voice alarm 4 and a controller 3;

[0047] The Beidou positioning module 1 is installed at the highest point of the crane boom. The Beidou positioning module 1 locates the position information of the boom and transmits the position information to the controller 3;

[0048] The transmission line electronic fence 2 is set in the warning area of ​​the high-voltage line and connected to the controller 3. The controller 3 obtains the warning range of the transmission line electronic fence 2. The voice alarm 4 is installed in the crane cab. The voice alarm 4 is connected to the controller 3. The controller 3 compares the acquired boom position information with the warning range of the transmission line electronic fence 2 to determine whether the boom position information enters the warning range of the transmission line electronic fence 2. If it enters the warning range of the transmission line electronic fence 2, the voice alarm 4 will give an alarm prompt. Beidou positioning module 1,

[0049] The transmission line electronic fence 2 and the voice alarm 4 are respectively connected to the controller 3 by wireless communication. The wireless communication method may include wireless local area network (Wi-Fi, WLAN, Wireless Local Area Networks), wireless broadband (Wibro), Worldwide Interoperability for Microwave Access (Wimax), High Speed ​​Downlink Packet Access (HSDPA, High Speed ​​Downlink Packet Access), etc.

[0050] The controller 3 may be implemented by using at least one of an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller 3, a microcontroller 3, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such an implementation may be implemented in the controller 3. For software implementation, implementations such as processes or functions may be implemented with separate software modules that allow execution of at least one function or operation. The software code may be implemented by a software application (or program) written in any appropriate programming language, and the software code may be stored in a memory and executed by the controller 3.

[0051] For the present invention, the warning range of the transmission line electronic fence 2 is provided with a working area, a danger area 6 and a serious danger area 5; the danger area 6 is a warning area; the serious danger area 5 is an alarm area. In order to be able to divide the different displayed areas, the working area, the danger area 6 and the serious danger area 5 can be displayed on the display screen in different colors. For example, the serious danger area 5 can be displayed in red. The danger area 6 can be displayed in yellow. The working area can be displayed in green. The alarm bell can use different sounds to distinguish different alarm levels.

[0052] In the present invention, the positioning of the boom by the Beidou positioning module 1 includes: positioning the horizontal position information of the boom and positioning the height information of the boom. The warning range of the transmission line electronic fence 2 includes: a height warning range and a horizontal warning range. The controller 3 compares and judges the acquired horizontal position information and height information of the boom with the height warning range and the horizontal warning range respectively; if the horizontal position information or height information of the boom enters the warning range of the transmission line electronic fence 2, an alarm prompt is issued through the voice alarm 4.

[0053] When the boom is in operation, an alarm can be triggered if it reaches the warning range of the electronic fence 2 of the power transmission line in both the height direction and the length direction.

[0054] As an embodiment of the present invention, the system uses Beidou positioning technology to draw an electronic fence 2 for the transmission line. The electronic fence 2 for the transmission line includes a plane fence and a height fence. The position of the highest point of the boom is detected by installing a Beidou positioning receiver at the top of the boom of the crane or crane. Once the boom position enters the electronic fence area drawn in advance, an alarm is issued through the voice alarm system of the crane control room to remind the operator to pay attention to safety.

[0055] Beidou positioning technology can achieve high-precision ground positioning. By using Beidou's ground-based augmentation system and differential information for high-precision positioning and solution, sub-meter-level real-time positioning can be achieved, overcoming the shortcomings of low accuracy and transmission delay of civilian GPS positioning, and is very suitable for real-time sub-meter-level positioning of crane booms. Beidou navigation and positioning technology is used to set up electronic fences for key transmission lines. The set electronic fences are distinguished according to different fence levels, warning distances, and line height information according to transmission lines of different voltage levels, and are preset with the help of transmission line corridors, voltage levels, and tower location information. For example, the electronic fence area of ​​the transmission line electronic fence 2 is set as a safe area, a warning area, and a prohibited area, which are divided into a plane fence and a height fence.

[0056] A Beidou positioning receiver is installed at the highest point of the crane boom to achieve real-time sub-meter-level high-precision positioning. Considering the operating speed of the crane boom, the corresponding alarm information should also be real-time. The distance and height of the transmission line fence also fully consider the moving speed of the crane boom. The Beidou positioning receiver installed at the highest point of the boom and the voice alarm in the crane control room are transmitted by wireless link to ensure that the operators in the crane control room can hear the voice alarm information of the Beidou positioning system in time and make correct operations to avoid electric shock accidents.

[0057] The present invention is based on Beidou high-precision positioning technology, which can serve as a warning for lifting machinery operations around high-voltage transmission lines. It is used for safety protection of cranes to prevent them from touching high-voltage lines, protect the safety of lifting machinery operators, and avoid tripping accidents of high-voltage transmission lines caused by misoperation of lifting machinery.

[0058] The crane anti-touch high-voltage line safety protection system involved in the present invention has high positioning accuracy and fast impact speed, and can greatly reduce electric shock accidents of construction machinery under the transmission line.

[0059] The crane anti-touch high-voltage line safety protection system involved in the present invention can be used as a convenient positioning device and voice alarm device, which can be easily installed at the end of the boom of the lifting machinery and in the operation control room. It is very convenient to install and is convenient for construction of lifting equipment under the transmission line line.

[0060] The crane anti-touching high-voltage line safety protection system involved in the present invention uses the Beidou positioning system to set up electronic fences for high-voltage transmission lines in advance, and sets electronic fences at different distances according to transmission lines of different voltage levels to ensure the safety of the lifting process.

[0061] In order to better control the operation of the crane boom, the system also includes: an operating speed acquisition module; the operating speed acquisition module is connected to the crane boom drive mechanism, and the operating speed acquisition module is used to obtain the operating speed of the crane boom and transmit the operating speed to the controller; the controller obtains that the boom enters the warning range of the electronic fence of the transmission line, and at the same time, the controller sends a braking control instruction to the crane vehicle controller, and controls the crane boom to slow down and stop running, which plays a role in controlling the crane, avoiding illegal operations by operators, and reducing the occurrence of danger.

[0062] Further, the transmission line electronic fence is connected to an electronic fence control circuit; the electronic fence control circuit includes: a first transformer T1, a rectifier module U1, a resistor R1, a resistor R2, a resistor R3, an adjustment resistor RP, a diode VS, a thyristor VT, a capacitor C1, a capacitor C2 and a second transformer T2;

[0063] The input side of the first transformer T1 is connected to the power supply, and the output side of the first transformer T1 is connected to the input end of the rectifier module U1; the first output end of the rectifier module U1 is respectively connected to the first end of the resistor R1 and the first end of the capacitor C1; the second end of the rectifier module U1, the second end of the capacitor C1, the second end of the resistor R3, the cathode of the thyristor VT, the second output end and the second input end of the second transformer T2 are respectively grounded; the resistor R1 is respectively connected to the second end of the resistor R2 and the first end of the capacitor C2; the first end of the resistor R2 is connected to the first end of the regulating resistor RP through the diode VS; the second end of the regulating resistor RP is respectively connected to the first end of the resistor R3, the regulating end of the regulating resistor RP and the triggering end of the thyristor VT; the second end of the capacitor C2 is connected to the first input end of the second transformer T2; the first output end of the second transformer T2 is connected to the transmission line electronic fence to supply power to the transmission line electronic fence.

[0064] After the alternating current is stepped down by the first transformer T1, it is rectified by the rectifier module U1 and filtered by the resistor R1 and the capacitor C1. The capacitor C2 is charged, and when the voltage across the capacitor C2 reaches a preset voltage value, the thyristor VT can be triggered. When the capacitor C2 is discharged, the thyristor VT can be cut off, and then charged again to trigger the thyristor VT, and the cycle is carried out so that the thyristor VT performs charging and discharging work. Pulse high voltage electricity is generated in the second transformer T2 and supplied to the electronic fence of the transmission line to achieve the protection function. The adjusting resistor RP can adjust the pulse voltage and pulse rate supplied to the electronic fence of the transmission line.

[0065] In the present invention, a controller is arranged in a cab, and the controller is connected to a touch display screen; the controller is communicatively connected with an adjustment end of an adjustment resistor RP, obtains a pulse voltage setting instruction set by a user through the touch display screen, and controls the adjustment resistor RP to adjust the pulse voltage of the electronic fence of the transmission line; the touch display screen is also used to display the operating status of the system.

[0066] There are multiple proximity sensors installed on the crane boom; when the crane boom approaches the electronic fence of the power transmission line, the proximity sensor triggers a proximity induction signal and sends the proximity induction signal to the controller, which then issues an alarm through a voice alarm.

[0067] That is to say, after the crane enters the lifting area, the controller can be wirelessly interconnected with the transmission line electronic fence to achieve wireless communication, which plays the role of alarm prompt. Since the transmission line electronic fence has a pulse voltage, multiple proximity sensors are installed on the crane boom; when the crane boom approaches the transmission line electronic fence, the proximity sensor triggers the proximity induction signal and sends the proximity induction signal to the controller, and the controller alarms through the voice alarm. It plays the role of multiple protection. At the same time, the controller can control the pulse voltage and pulse rate supplied to the transmission line electronic fence. It plays the role of the induction sensitivity of the proximity sensor, and alarms when approaching the transmission line electronic fence. The specific dangerous areas and serious dangerous areas near the transmission line electronic fence can be set according to actual needs. It can also be sensed by the proximity sensor and alarm when approaching the transmission line electronic fence without entering the dangerous area and approaching the dangerous area.

[0068] Focusing on key areas with higher risks of lifting machinery construction under transmission lines, the environment around overhead lines is monitored to fully understand their risk status, providing a technical basis for timely prevention and control measures and emergency disposal, which is of great significance to ensuring the safe operation of transmission lines, preventing electric shock of lifting machinery, and the personal safety of operators.

[0069] The implementation method of the electronic safety fence for high-voltage transmission lines of the Beidou positioning system of the present invention is as follows:

[0070] 1) The horizontal distance and height distance of the serious danger area (warning area) of the electronic fence set up for transmission lines of different voltage levels should be different and should meet the requirements of power safety regulations.

[0071] 2) The danger zone (warning zone) of the electronic fence should be set according to the power safety regulations, and its scope should include the warning area, such as Figure 1 shown.

[0072] The implementation method of the Beidou positioning receiver at the end of the crane boom is as follows:

[0073] 1) The Beidou positioning receiver of the crane boom should meet the requirements of sub-meter positioning accuracy and real-time demodulation.

[0074] 2) The Beidou positioning receiver should be placed at the top of the crane boom.

[0075] 3) The Beidou positioning receiver should be able to send warning information to the operation room via wireless transmission without time delay.

[0076] The implementation methods of the alarm information receiving device and the voice prompt system are as follows:

[0077] The alarm information receiving device is used to receive the location information of the Beidou positioning receiver and provide information on normal working areas, dangerous areas and serious dangerous areas respectively.

[0078] The alarm information receiving device should avoid common radio interference and receive information without time delay.

[0079] The voice prompt system should be loud and have an indicator light function.

[0080] The crane anti-touch high-voltage line safety protection system of the present invention overcomes the shortcomings of low GPS positioning accuracy and low sensitivity of electric field induction sensors in the past, and is suitable for safety warnings when crane equipment is operated near high-voltage transmission lines. The system detects the real-time position of the crane boom to determine whether it is in a safe area. Once the boom enters the warning area and the dangerous area, an alarm information sending device will transmit the information to a receiving device in the operating room, and different levels of voice prompts will be given to remind operators to pay attention to safety and avoid electric shock of the crane.

[0081] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane anti-touch high-voltage line safety protection system, characterized in that: include: Beidou positioning module, transmission line electronic fence, voice alarm and controller; The Beidou positioning module is installed at the highest point of the crane boom. The Beidou positioning module locates the position information of the boom and transmits the position information to the controller; The electronic fence of the transmission line is set in the warning area of ​​the high-voltage line and connected to the controller, and the controller obtains the warning range of the electronic fence of the transmission line; The voice alarm is installed in the crane cab and connected to the controller. The controller compares the acquired boom position information with the warning range of the electronic fence of the transmission line to determine whether the boom position information enters the warning range of the electronic fence of the transmission line. If you enter the warning range of the electronic fence of the power transmission line, the voice alarm will sound an alarm prompt; The transmission line electronic fence is connected to an electronic fence control circuit; The electronic fence control circuit includes: a first transformer T1, a rectifier module U1, a resistor R1, a resistor R2, a resistor R3, an adjustment resistor RP, a diode VS, a thyristor VT, a capacitor C1, a capacitor C2 and a second transformer T2; The input side of the first transformer T1 is connected to the power supply, and the output side of the first transformer T1 is connected to the input end of the rectifier module U1; the first output end of the rectifier module U1 is respectively connected to the first end of the resistor R1 and the first end of the capacitor C1; the second end of the rectifier module U1, the second end of the capacitor C1, the second end of the resistor R3, the cathode of the thyristor VT, the second output end and the second input end of the second transformer T2 are respectively grounded; The resistor R1 is connected to the second end of the resistor R2 and the first end of the capacitor C2 respectively; the first end of the resistor R2 is connected to the first end of the regulating resistor RP through the diode VS; the second end of the regulating resistor RP is connected to the first end of the resistor R3, the regulating end of the regulating resistor RP and the trigger end of the thyristor VT respectively; the second end of the capacitor C2 is connected to the first input end of the second transformer T2; The first output end of the second transformer T2 is connected to the transmission line electronic fence to supply power to the transmission line electronic fence; The controller is arranged in the cab and is connected to a touch display screen; The controller is in communication connection with the regulating end of the regulating resistor RP, obtains the pulse voltage setting instruction set by the user through the touch display screen, and controls the regulating resistor RP to adjust the pulse voltage of the transmission line electronic fence; When the crane arm approaches the electronic fence of the power transmission line, the proximity sensor triggers a proximity induction signal and sends the proximity induction signal to the controller, which then issues an alarm through the voice alarm. The warning range of the transmission line electronic fence includes working area, danger area and serious danger area; The danger zone is a warning zone; The serious danger area is the warning area; When you approach the electronic fence of the power transmission line near the dangerous area without entering the dangerous area, the proximity sensor will sense it and sound an alarm.

2. The crane anti-touch high-voltage line safety protection system according to claim 1 is characterized in that: The Beidou positioning module positions the boom, including: positioning the horizontal position information of the boom and positioning the height information of the boom.

3. The crane anti-touch high-voltage line safety protection system according to claim 2 is characterized in that: The warning range of the transmission line electronic fence includes: height warning range and horizontal warning range.

4. The crane anti-touch high-voltage line safety protection system according to claim 2 is characterized in that: The controller compares and determines the acquired boom horizontal position information and height information with the height warning range and the horizontal warning range respectively; If the horizontal position information or height information of the boom enters the warning range of the electronic fence of the transmission line, an alarm will be given through the voice alarm.

5. The crane anti-touch high-voltage line safety protection system according to claim 1 is characterized in that: It also includes: a running speed acquisition module; The running speed acquisition module is connected to the crane boom driving mechanism, and the running speed acquisition module is used to acquire the running speed of the crane boom and transmit the running speed to the controller; The controller detects that the boom has entered the warning range of the electronic fence of the transmission line, and at the same time, issues an alarm through the voice alarm. At the same time, the controller sends a braking control command to the crane vehicle controller and controls the crane boom to slow down and stop running.

6. The crane anti-touch high-voltage line safety protection system according to claim 1 is characterized in that: The Beidou positioning module, the transmission line electronic fence and the voice alarm are respectively connected to the controller in a wireless communication manner.

7. The crane anti-touch high-voltage line safety protection system according to claim 1 is characterized in that: The touch screen display is also used to display the operating status of the system.

8. The crane anti-touch high-voltage line safety protection system according to claim 1 is characterized in that: There are several proximity sensors installed on the crane boom.

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