A method and system for near-power alarm for construction of power distribution equipment

Abstract

The present invention relates to the field of electric power monitoring technology, and in particular to a method and system for near-electricity alarm for construction power distribution devices. The method comprises the following steps: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in the working area around the construction power distribution device, and integrating and constructing a weak voltage sensor array inside the laser radar; performing position positioning and real-time monitoring of the operating inclination angle on the construction machinery operation end, and measuring and verifying the turning radius of the construction machinery to obtain the turning radius of the construction machinery operation process; performing real-time monitoring of the voltage level and initial measurement of the safe distance of the live risk of the charged body within the construction power distribution device, and performing safety distance impact correction and near-electricity alarm response, generating a near-electricity alarm signal, and performing construction near-electricity alarm display processing and uploading to the construction site early warning platform to perform the corresponding near-electricity alarm notification work. The present invention can enhance the power safety of the construction site.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power monitoring, and in particular to a method and system for providing a near-power alarm for a construction power distribution device. Background Art

[0002] During the construction process, the safety of the power distribution device is of vital importance, but due to the complex environment of the construction site, the near-electricity alarm technology of electrical equipment still faces many challenges. With the growth of electricity demand, the transformation and expansion of substations have increased, but the risk of working with live bodies is high. In order to ensure the safety of infrastructure, it is necessary to find solutions and recognize the importance of challenges. Through technologies such as lidar, camera, grating, etc., near-electricity warning and personnel detection are realized, point cloud clustering and filtering are performed, noise points are removed, and people or objects are recorded and identified. Among them, the grating monitors the approach of personnel and makes corresponding actions, and the lidar monitors the approach of construction machinery and makes safe distance warning actions, which can promote the steady development of power grid construction. However, the existing alarm method generally realizes the alarm function of the safe distance of construction machinery through fixed threshold settings, lacks adaptability to the dynamic environment of the construction site, and cannot accurately monitor and adjust the safe distance between the construction distribution device and the construction machinery. This deficiency leads to the failure to issue an alarm in time when the construction machinery and equipment approach the construction distribution device during the construction process, thereby increasing the electrical safety risk. Summary of the invention

[0003] Based on this, it is necessary for the present invention to provide a method and system for near-power alarm for construction of power distribution equipment to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above object, a method for near-power alarm for construction of a power distribution device comprises the following steps:

[0005] Step S1: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in a working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array;

[0006] Step S2: installing a wireless positioning sensor and an angle sensor on the working end of the construction machinery, and using the wireless positioning sensor and the angle sensor to locate the real-time operation process of the working end of the construction machinery and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, measuring and verifying the turning radius of the construction machinery operation end, so as to obtain the turning radius of the construction machinery operation process;

[0007] Step S3: Use a weak voltage sensor array to monitor the voltage level of the charged body in the working area around the construction power distribution device in real time to obtain the voltage level of the charged body around the construction power distribution device; perform an initial measurement of the charged risk safety distance between the laser radar and the charged body based on the voltage level of the charged body around the construction power distribution device to obtain the initial control value of the charged risk safety distance at different voltage levels; perform a safety distance impact correction on the initial control value of the charged risk safety distance at different voltage levels based on the turning radius of the construction machinery operation process to obtain the charged risk safety distance impact correction value at different voltage levels;

[0008] Step S4: Use laser radar to identify and analyze approaching objects in the working area around the construction power distribution device to obtain the approaching object identification results around the construction power distribution device, wherein the approaching object identification results around the construction power distribution device include approaching construction personnel and approaching construction machinery; if it is a construction personnel approaching, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion and proximity electricity alarm in the working area around the construction power distribution device, and a construction personnel intrusion and proximity electricity alarm signal is generated; if it is a construction machinery approaching, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the machinery safety distance proximity electricity alarm in the working area around the construction power distribution device, and a construction machinery safety distance proximity electricity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion and proximity electricity alarm display processing on the construction personnel intrusion and proximity electricity alarm signal or the construction machinery safety distance proximity electricity alarm signal, and the construction power distribution device proximity electricity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction power distribution device site proximity electricity alarm notification work.

[0009] Further, step S1 includes the following steps:

[0010] Step S11: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen;

[0011] Step S12: performing electrical layout topology analysis on the internal structure of the laser radar to obtain the internal electrical layout topology structure of the laser radar;

[0012] Step S13: performing an optimal sensor layout guidance analysis on the internal structure of the laser radar based on the internal electrical layout topology of the laser radar, so as to obtain an optimal layout scheme for the internal structure sensors of the laser radar;

[0013] Step S14: integrating and deploying a plurality of weak voltage sensors inside the laser radar according to the optimal arrangement scheme of sensors in the internal structure of the laser radar, and performing network connection processing on the plurality of weak voltage sensors integrated inside the laser radar to generate an initial array of weak voltage sensors;

[0014] Step S15: optimizing and adjusting the sensing gap of the initial weak voltage sensor array to construct a weak voltage sensor array.

[0015] Further, step S15 includes the following steps:

[0016] Step S151: performing an electrical connection verification test between each weak voltage sensor in the weak voltage sensor initial array to obtain an electrical connection test result between the weak voltage sensors;

[0017] Step S152: Based on the electrical connection test result between the weak voltage sensors, an electrical connection improvement suggestion analysis is performed between each weak voltage sensor in the initial weak voltage sensor array to generate an electrical connection improvement plan between the weak voltage sensors; and according to the electrical connection improvement plan between the weak voltage sensors, an electrical connection improvement calibration process is performed on the initial weak voltage sensor array to obtain an electrical improvement array between the weak voltage sensors;

[0018] Step S153: analyzing the sensing monitoring range of each weak voltage sensor in the weak voltage sensor room electrical improvement array to obtain the sensing monitoring range size corresponding to each weak voltage sensor;

[0019] Step S154: Based on the sensing monitoring range size corresponding to each weak voltage sensor, the overlapping area and the blank area area between each weak voltage sensor in the electrical improvement array of the weak voltage sensor are measured to obtain the overlapping area size and the gap blank area size between each weak voltage sensor; the sensing monitoring gap is quantitatively calculated according to the ratio of the overlapping area size and the gap blank area size between each weak voltage sensor to obtain the network sensing monitoring gap between each weak voltage sensor;

[0020] Step S155: Based on the network sensing monitoring gap between each weak voltage sensor, the sensing gap of each weak voltage sensor in the weak voltage sensor electrical improvement array is optimized and adjusted to construct a weak voltage sensor array.

[0021] Further, step S2 includes the following steps:

[0022] Step S21: installing a wireless positioning sensor and an angle sensor on the construction machinery operation end, and using the wireless positioning sensor to perform real-time positioning processing on the real-time operation process of the construction machinery operation end, so as to obtain real-time position positioning data of the construction machinery operation;

[0023] Step S22: using an angle sensor to monitor the real-time operation process of the construction machinery operation end and the operation inclination angle in real time, so as to obtain the real-time operation inclination angle data of the construction machinery;

[0024] Step S23: performing spatial dynamic grid division modeling on the real-time location positioning data of the construction machinery operation to obtain a spatial dynamic grid model of the construction machinery operation position change;

[0025] Step S24: Based on the real-time position positioning data of the construction machinery operation, the real-time inclination angle data of the construction machinery operation is subjected to time-series synchronization processing to obtain the inclination angle data of the construction machinery operation in the same time-series dimension; based on the spatial dynamic grid model of the construction machinery operation position change, the inclination angle spatial distribution mapping processing is performed on the construction machinery operation inclination angle data in the same time-series dimension to obtain the spatial distribution model of the inclination angle change of the construction machinery at different operation positions;

[0026] Step S25: Based on the spatial distribution model of the inclination angle change of the construction machinery at different working positions, the turning radius of the construction machinery at the working end of the construction machinery is measured and verified to obtain the turning radius of the construction machinery during the working process.

[0027] Further, step S25 includes the following steps:

[0028] Step S251: performing space vector conversion on the spatial distribution model of the inclination angle variation of the construction machinery at different working positions to obtain the space vector of the inclination angle variation of the construction machinery at the distribution points of different working positions;

[0029] Step S252: performing geometric motion trajectory analysis on the working end of the construction machinery based on the inclination change space vectors of the construction machinery at different working position distribution points, so as to obtain the geometric motion trajectory of the inclination change of the construction machinery at different working positions;

[0030] Step S253: performing arc fitting processing on the geometric motion trajectory of the inclination change of the construction machinery at different working positions to obtain arc fitting parameters of the inclination change of the construction machinery at different working positions;

[0031] Step S254: measuring and verifying the turning radius of the construction machinery at the working end of the construction machinery based on the arc fitting parameters of the inclination change of the construction machinery at different working positions, and obtaining the turning radius of the construction machinery during the working process.

[0032] Further, step S3 includes the following steps:

[0033] Step S31: performing electromagnetic environment calibration on the weak voltage sensor array to obtain a voltage sensor electromagnetic environment calibration data set; performing dynamic sensitivity calibration on the weak voltage sensor array based on the voltage sensor electromagnetic environment calibration data set to obtain a weak voltage sensor sensitive calibration array;

[0034] Step S32: using a sensitive calibration array of weak voltage sensors to perform real-time monitoring of the electric field distribution of the charged bodies in the working area around the construction power distribution device, and obtaining an electric field distribution map of the charged bodies around the construction power distribution device;

[0035] Step S33: Based on the electric field distribution spectrum of the charged body around the construction power distribution device, the voltage signal monitored by each voltage sensor in the sensitive calibration array of the weak voltage sensor is integrated and processed to obtain the voltage distribution intensity data of the charged body around the construction power distribution device; based on the voltage distribution intensity data of the charged body around the construction power distribution device, the voltage level of the charged body in the working area around the construction power distribution device is derived and calculated to obtain the voltage level of the charged body around the construction power distribution device;

[0036] Step S34: Based on the voltage level of the charged body around the construction power distribution device, the limit position simulation of the charged risk between the laser radar and the charged body is determined to obtain the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions; based on the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions, the initial measurement of the charge risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charge risk safety distance under different voltage levels;

[0037] Step S35: Based on the turning radius of the construction machinery operation process, the live risk safety distance impact correction calculation formula is used to perform safety distance impact correction on the initial control value of the live risk safety distance under different voltage levels to obtain the live risk safety distance impact correction value under different voltage levels.

[0038] Furthermore, the calculation formula for correcting the impact of the live risk safety distance described in step S35 is specifically:

[0039] ;

[0040] In the formula, For voltage level The correction value of the safety distance of the live risk under is the measurement parameter of voltage level, For voltage level The initial control value of the live risk safety distance under is the turning radius of the construction machinery during operation. is the voltage level influence coefficient, is the length of the operation area during the operation of the construction machinery, is the integral variable parameter of the operating area length, is the complexity coefficient of construction machinery operation, is the distance attenuation factor of the charged risk, It is the correction factor for the impact of the safety distance correction value on the risk of live electricity.

[0041] Further, step S4 includes the following steps:

[0042] Step S41: using a laser radar to perform object recognition analysis on the working area around the construction power distribution device to obtain recognition results of objects around the construction power distribution device, wherein the recognition results of objects around the construction power distribution device include construction personnel approaching and construction machinery approaching;

[0043] Step S42: judging the result of the identification of the objects approaching the construction power distribution device, if the result of the identification of the objects approaching the construction power distribution device is that the construction personnel are approaching, triggering the corresponding grating to monitor the approaching behavior of the construction personnel, and obtaining the grating monitoring distance value of the approaching behavior of the construction personnel; comparing and judging the grating monitoring distance value of the approaching behavior of the construction personnel according to the preset personnel approaching distance threshold, when the grating monitoring distance value of the approaching behavior of the construction personnel is greater than the preset personnel approaching distance threshold, continuing the approaching distance monitoring; when the grating monitoring distance value of the approaching behavior of the construction personnel is less than or equal to the preset personnel approaching distance threshold, using the sound and light alarm to respond to the personnel intrusion and proximity alarm of the working area around the construction power distribution device, and generating a construction personnel intrusion and proximity alarm signal;

[0044] Step S43: If the result of the identification of the approaching object around the construction power distribution device is that the construction machinery is approaching, the laser radar is triggered to measure the voltage level and perform laser positioning of the approach distance on the construction machinery in the working area around the construction power distribution device, so as to obtain the laser positioning approach distance value of the construction machinery at the corresponding voltage level; based on the correction value of the impact of the live risk safety distance at different voltage levels, the safety distance judgment is performed on the laser positioning approach distance value of the construction machinery at the corresponding voltage level, and when the laser positioning approach distance value is greater than the corresponding correction value of the impact of the live risk safety distance, the approach distance laser positioning processing is continued; when the laser positioning approach distance value is less than or equal to the corresponding correction value of the impact of the live risk safety distance, the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the corresponding construction machinery in the working area around the construction power distribution device, and a construction machinery safety distance proximity alarm signal is generated;

[0045] Step S44: uploading the generated construction personnel intrusion proximity alarm signal or construction machinery safety distance proximity alarm signal to the LED display screen, and using the LED display screen to perform construction proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal to obtain construction power distribution device proximity alarm information;

[0046] Step S45: Upload the near-power alarm information of the construction power distribution device to the construction site early warning platform to respond to the near-power alarm notification, generate a notification SMS for the near-power alarm management personnel of the construction site, and execute the corresponding near-power alarm notification work of the construction power distribution device site.

[0047] Further, step S41 includes the following steps:

[0048] The laser radar is used to comprehensively identify and scan the working area around the construction power distribution device to obtain a three-dimensional point cloud data set of the area around the construction power distribution device;

[0049] Performing spatial object layering processing on the three-dimensional point cloud data set of the area around the construction power distribution device to obtain different spatial object layering models in the area around the construction power distribution device;

[0050] Performing hierarchical object behavior feature analysis on different spatial object hierarchical models in the area around the construction power distribution device, and obtaining object behavior feature data of different spatial object hierarchies in the area around the construction power distribution device;

[0051] Based on the object behavior feature data of different spatial object levels in the area around the construction power distribution device, approaching object recognition analysis is performed on the working area around the construction power distribution device to obtain the approaching object recognition results around the construction power distribution device, where the approaching object recognition results around the construction power distribution device include the approaching of construction personnel and construction machinery.

[0052] Furthermore, the present invention also provides a power proximity alarm system for construction of a power distribution device, which is used to execute the power proximity alarm method for construction of a power distribution device as described above. The power proximity alarm system for construction of a power distribution device comprises:

[0053] The equipment connection configuration module around the construction power distribution device is used to install a beam grating, a laser radar, an audible and visual alarm and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array;

[0054] The construction machinery operation turning radius monitoring module is used to install a wireless positioning sensor and an angle sensor on the construction machinery operation end, and use the wireless positioning sensor and the angle sensor to locate the real-time operation process of the construction machinery operation end and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, the construction machinery operation end is measured and verified for the construction machinery turning radius, so as to obtain the turning radius of the construction machinery operation process;

[0055] The construction power distribution device site safety distance measurement module is used to use a weak voltage sensor array to monitor the voltage level of the charged body in the construction power distribution device in real time, and obtain the voltage level of the charged body around the construction power distribution device; based on the voltage level of the charged body around the construction power distribution device, the initial measurement of the charged risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charged risk safety distance at different voltage levels; based on the turning radius of the construction machinery operation process, the initial control value of the charged risk safety distance at different voltage levels is corrected for the safety distance impact, so as to obtain the charged risk safety distance impact correction value at different voltage levels;

[0056] The power distribution device site proximity alarm notification module is used to perform approaching object recognition and analysis on the working area around the construction distribution device through a laser radar, and obtain the approaching object recognition results around the construction distribution device, wherein the approaching object recognition results around the construction distribution device include the approach of construction personnel and the approach of construction machinery; if it is the approach of construction personnel, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion proximity alarm of the working area around the construction distribution device, and a construction personnel intrusion proximity alarm signal is generated; if it is the approach of construction machinery, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the working area around the construction distribution device, and a construction machinery safety distance proximity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal, and the construction distribution device proximity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction distribution device site proximity alarm notification work.

[0057] Beneficial effects of the present invention:

[0058] 1. The method for near-electricity alarm for construction power distribution devices proposed by the present invention, compared with the prior art, has the beneficial effect of effectively improving safety and work efficiency by installing a beam grating, a laser radar, an audible and visual alarm and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are used as sensing devices, which can monitor the movement of personnel and objects in the working area in real time and detect potential dangerous situations in time. The audible and visual alarm can be electrically connected to the beam grating and the laser radar, and can immediately sound an alarm when an abnormality is detected, reminding the operator to take necessary protection or avoid risks. At the same time, the LED display screen can display the alarm information in real time by being electrically connected to the audible and visual alarm, ensuring that the alarm information is clearly conveyed to all personnel. This system integration design greatly enhances the safety of the working area, improves accident warning and response speed, and reduces potential safety hazards. By integrating and deploying a number of weak voltage sensors inside the laser radar, and connecting and constructing a network array for the several weak voltage sensors integrated inside the laser radar, so as to form a weak voltage sensor array, this process ensures that the laser radar can monitor and record weak voltage changes in real time, providing the necessary data support for accurate measurement. The integration of weak voltage sensors not only improves the measurement capability of the laser radar, but also enhances its response to weak signals. Through network connection processing, the sensor data can be effectively integrated and analyzed to improve the reliability and practicality of the data. This process provides a solid foundation for subsequent optimization and adjustment, thereby providing a guarantee for the accurate measurement and performance improvement of the laser radar. Secondly, by installing wireless positioning sensors and angle sensors on the construction machinery operation end, it is possible to accurately monitor the real-time position and angle of the construction machinery operation end. The wireless positioning sensor provides real-time position data of the construction machinery operation end, so that the operation trajectory and position changes of the machinery can be accurately tracked. This real-time positioning data not only helps monitor the operating status of the machinery, but also can take timely adjustment measures when position offset or abnormality occurs, thereby improving the accuracy and safety of construction. Through accurate real-time position data, the operation process can be optimized, resource waste can be reduced, and the overall layout of the construction site can be effectively managed. It also provides basic data support for subsequent dynamic adjustment and operation optimization, making the construction process more efficient and scientific. The installation of angle sensors enables real-time monitoring of the inclination of the construction machinery's operating end. Inclination data is crucial to the stability and operating accuracy of construction machinery, especially when operating on steep slopes or complex terrain. By monitoring inclination data in real time, it is possible to ensure that the machinery is always within a safe range during operation, preventing the machinery from tipping over or unstable operation due to excessive inclination. The acquisition of real-time inclination data also helps construction managers to understand the operating status of the machinery in a timely manner, make timely adjustments and maintenance, and thus improve the safety and reliability of construction.By measuring and verifying the turning radius of the construction machinery at the working end based on the real-time position data of the construction machinery and the real-time inclination data of the construction machinery, the turning radius during the operation of the construction machinery can be obtained. This measurement result is crucial for evaluating the range of motion and operating capacity of the machinery during the operation. Accurate turning radius measurement can provide basic data guarantee for subsequent processing, ensuring that the machinery can operate efficiently within the specified range. Understanding the turning radius can also help to correct the impact of the safety distance, reduce the risk of electrification caused by improper operation or accurate assessment of the electrified body, and thus better adapt to the dynamic environmental conditions of the construction site. Then, by using a weak voltage sensor array to monitor the voltage level of the electrified body in the working area around the construction power distribution device in real time, the voltage level of the electrified body can be determined. The key to this step is that it can integrate the voltage signal into useful voltage distribution data and obtain the voltage level by calculation. This process not only helps to clarify the voltage level, but also predicts potential electrical hazards and provides safe operation guidelines for different voltage levels. Accurate voltage level information is the key to conducting safety assessments and formulating effective protective measures, thereby ensuring the safety of the construction environment. By initially measuring the safe distance between the laser radar and the charged body based on the voltage level of the charged body around the construction power distribution device, the initial measurement of the safe distance can be provided for the actual operation. This measurement process can help the construction team understand the risk distribution under different voltage conditions, so as to formulate corresponding safety distance requirements and ensure that the laser radar and the charged body maintain a safe distance, which is crucial to preventing electric shock and ensuring the safety of construction equipment, and effectively avoiding accidents under corresponding voltage conditions. The initial control value of the safe distance under different voltage levels is corrected by using the correction calculation formula of the safe distance of the risk of the charge based on the turning radius of the construction machinery operation process. The key to this step is to adjust the safe distance control value according to the mechanical movement and voltage level changes in the actual construction environment. Through the correction calculation, it can be ensured that under various working conditions, the set safe distance can still effectively protect the safety of construction personnel and equipment. This step helps to dynamically adjust the safe distance. Considering the actual operation conditions during the construction process, the safe distance is more accurate and reliable, thereby further improving the overall safety level of the construction site, and accurately monitoring and adjusting the safe distance between the construction power distribution device and the construction machinery. Finally, by using lidar to identify and analyze approaching objects in the working area around the construction power distribution device, it is possible to efficiently and accurately identify and classify the types of approaching objects and distinguish between construction personnel and construction machinery. This precise identification and analysis is to ensure the safety of the construction power distribution device and reduce potential risks.LiDAR has a high spatial resolution and can scan the surrounding environment in real time, providing an accurate data basis for subsequent safety protection measures. The clarity and timeliness of the identification results are crucial for the rapid response and handling of potential safety hazards, laying a solid foundation for the automated management and real-time monitoring of the construction site. If it is determined that the construction personnel are approaching, the reflected grating will be triggered to monitor the approach distance of the construction personnel's approaching behavior. The construction personnel's behavior can be detected in real time to ensure that they maintain a safe distance from the construction power distribution device. This mechanism can effectively prevent construction personnel from getting too close to the dangerous area through continuous monitoring of the approach distance, thereby reducing the risk of electric shock accidents. When the approach distance of the construction personnel is detected to be lower than the preset threshold, the system will immediately trigger an audible and visual alarm, send out an alarm signal, and remind the construction personnel to leave the dangerous area in time. This timely alarm mechanism improves the safety of the site, avoids potential safety accidents caused by the approach of personnel, and ensures the life safety of construction personnel. If it is determined that the construction machinery is approaching, the laser radar is triggered to judge the safety distance based on the correction value of the safety distance of the risk of live electricity at different voltage levels, and the sound and light alarm is used to respond to the mechanical safety distance of the working area around the construction power distribution device. The approach distance of the construction machinery is measured by the laser radar, and combined with the correction value of the safety distance of the risk of live electricity at the corresponding voltage level, the safety warning line can be dynamically adjusted to ensure that the construction machinery is operated within the safe distance range. When the mechanical approach distance is detected to be lower than the safety threshold, the system will trigger the sound and light alarm to remind the construction personnel and machine operators to take measures to avoid the risk of live electricity. This method effectively reduces the risk of electric shock caused by improper mechanical operation, enhances the safety and operation specifications of the construction site, and can issue an alarm in time. In addition, by displaying the generated alarm signal on the LED display screen, the safety warning information of the construction personnel and construction machinery can be intuitively presented on the construction site. The real-time display function of the LED display screen enables all on-site personnel to quickly understand the current safety status and take necessary preventive measures. Through visual alarms, construction workers and managers can respond to potential safety hazards more quickly, effectively improving the efficiency of on-site safety management. This display method can reduce false alarms and missed alarms, ensuring that every safety warning information can be accurately conveyed. In addition, by uploading the near-power alarm information of the construction power distribution device to the construction site early warning platform and generating notification text messages, it can ensure that relevant managers receive the alarm information in a timely manner. Through the early warning platform, the alarm information can be expanded to a wider management and response level to ensure that all relevant personnel can quickly understand the safety status and take action, and the generated notification text messages can be directly transmitted to the managers' mobile phones, facilitating their on-site supervision and decision-making. This mechanism not only improves the response speed, but also improves the safety management level of the entire construction site and reduces the electrical safety risks caused by delayed information transmission.

[0059] 2. The near-power alarm system for construction power distribution devices proposed in the present invention is generally composed of a construction power distribution device surrounding equipment connection configuration module, a construction machinery operation rotation radius monitoring module, a construction power distribution device site safety distance measurement module and a construction power distribution device site near-power alarm notification module. It can implement any near-power alarm method for construction power distribution devices described in the present invention, and is used to combine the operations between computer programs running on various modules to implement the near-power alarm method for construction power distribution devices. The internal structures of the system cooperate with each other, which can greatly reduce duplication of work and manpower investment, and can quickly and effectively provide a more accurate and efficient near-power alarm process for construction power distribution devices, thereby simplifying the operating procedures of the near-power alarm system for construction power distribution devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments thereof made with reference to the following drawings:

[0061] Figure 1 It is a schematic diagram of the steps of the method for near-power alarm for construction of a power distribution device according to the present invention;

[0062] Figure 2 for Figure 1 Detailed step flow diagram of step S1;

[0063] Figure 3 for Figure 2 Detailed step flow chart of step S15 in FIG. DETAILED DESCRIPTION

[0064] The technical method of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0065] To achieve this, please refer to Figures 1 to 3 The present invention provides a method for warning of near-power supply for construction of power distribution equipment. In the embodiment of the present invention, please refer to Figure 1 FIG. 1 is a schematic diagram of the steps of the method for warning the power supply near the power distribution device used for construction of the present invention. In this example, the method for warning the power supply near the power distribution device used for construction of the power distribution device includes the following steps:

[0066] Step S1: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in a working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array;

[0067] In an embodiment of the present invention, a series of safety monitoring equipment including a beam grating, a laser radar, an audible and visual alarm and an LED display screen are installed in the working area around the construction power distribution device. First, a suitable installation position is selected, that is, the beam grating is installed in the lower section (below 2 meters) of the construction power distribution device, and the laser radar is installed in the upper section (above 2 meters in the space close to the live parts of cranes, excavators and other construction machinery), to ensure that the beam grating and the laser radar can cover the entire range of the working area, and the output ends of the beam grating and the laser radar are electrically connected to the input end of the audible and visual alarm respectively, so that when the beam grating or the laser radar detects that the construction personnel or construction machinery enters the dangerous area, the audible and visual alarm can immediately sound an alarm. At the same time, the output end of the audible and visual alarm is connected to the LED display screen, so that when the alarm is triggered, the alarm status or related information can be displayed on the LED display screen. By determining the optimal position of the internal structure sensor of the laser radar, several weak voltage sensors are integrated and deployed inside the laser radar, so as to select several appropriate weak voltage sensors and install them in the optimal position of the internal structure sensor of the laser radar, use precise installation tools and methods to ensure that each weak voltage sensor is stably fixed in the specified position, and connect these weak voltage sensors to the network through appropriate cables, and optimize the sensing gap. This process includes analyzing the weak voltage sensors in the initial array of weak voltage sensors to identify possible sensor coverage blind areas or data redundant areas, and using optimization algorithms to adjust the layout of the weak voltage sensors to ensure that the position of each weak voltage sensor can minimize the coverage blind areas and improve the accuracy and coverage of the overall data acquisition, so as to finally construct a weak voltage sensor array.

[0068] Step S2: installing a wireless positioning sensor and an angle sensor on the working end of the construction machinery, and using the wireless positioning sensor and the angle sensor to locate the real-time operation process of the working end of the construction machinery and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, measuring and verifying the turning radius of the construction machinery operation end, so as to obtain the turning radius of the construction machinery operation process;

[0069] In an embodiment of the present invention, a corresponding wireless positioning sensor and an angle sensor are installed on the working end of a construction machine, wherein a wireless positioning sensor such as a global positioning system (GPS) receiver is installed on the working end of the machine to provide working position data in real time through satellite signals, and an angle sensor is installed at a key position of the mechanical arm of the working end of the construction machine to measure the inclination angle of the working end. At the same time, the real-time working process of the working end of the construction machine is positioned in real time by starting the installed wireless positioning sensor to obtain the real-time positioning position of the working end of the construction machine, thereby obtaining the real-time positioning data of the working end of the construction machine. At the same time, by using the previously installed angle sensor to monitor the real-time inclination angle of the working end of the construction machine in real time, the angle sensor can measure and record the change in the inclination angle of the working end of the construction machine, and record the inclination value at each time point, thereby obtaining the real-time inclination angle data of the working end of the construction machine. Then, the real-time position data of the construction machinery operation obtained by the previous real-time positioning monitoring is input into the spatial grid modeling tool, and the real-time position data of the construction machinery operation is dynamically grid-divided according to the predetermined spatial range by starting the spatial grid modeling tool. Each grid represents a specific spatial area, and the real-time position data of the construction machinery operation obtained by combining the previous positioning monitoring is used to synchronize the corresponding real-time inclination data of the construction machinery operation, so as to align the timestamps of the corresponding inclination data with the real-time position data obtained by the previous monitoring to ensure the matching of the data in the same time dimension. After completing the time synchronization processing, the position change space dynamic grid model obtained by the previous division is used to synchronize the inclination data of the construction machinery operation in the same time dimension after time synchronization. The data is processed by spatial distribution mapping. This processing maps the inclination data to the specific working position in the spatial grid model, and also monitors and measures the turning radius of the corresponding construction machinery working end by combining the inclination change distribution model at different working positions obtained by previous mapping. The turning trajectory of the construction machinery working end is analyzed based on the inclination change spatial distribution model obtained by previous mapping, and the radius of the construction machinery's rotation during the operation is determined by the arc parameters extracted from the model. At the same time, a laser rangefinder or similar tool can be used to measure the actual radius of rotation from the working end of the construction machinery, and the measurement results are compared with the model parameters for verification. The accuracy of the model is verified by comparing the results, and the turning radius of the construction machinery during the operation process is verified and determined, so as to finally obtain the turning radius of the construction machinery during the operation process.

[0070] Step S3: Use a weak voltage sensor array to monitor the voltage level of the charged body in the working area around the construction power distribution device in real time to obtain the voltage level of the charged body around the construction power distribution device; perform an initial measurement of the charged risk safety distance between the laser radar and the charged body based on the voltage level of the charged body around the construction power distribution device to obtain the initial control value of the charged risk safety distance at different voltage levels; perform a safety distance impact correction on the initial control value of the charged risk safety distance at different voltage levels based on the turning radius of the construction machinery operation process to obtain the charged risk safety distance impact correction value at different voltage levels;

[0071] In an embodiment of the present invention, a weak voltage sensor array is used to perform real-time monitoring of the electric field distribution intensity of the charged body in the working area around the construction power distribution device, so that the corresponding voltage sensor in the weak voltage sensor array is started to automatically collect the electric field signal around the charged body, and the automatically collected electric field signal is transmitted to the data processing center through the real-time monitoring system, and the electric field distribution spectrum of the corresponding charged body is generated visually by using real-time signal processing software to display the electric field intensity and voltage distribution. The voltage signal recorded by each voltage sensor is analyzed by combining the charged body electric field distribution spectrum obtained by the previous distribution analysis, so that these voltage signals are integrated and processed to calculate the voltage distribution intensity of the corresponding charged body, and the voltage data of each sensor is normalized, and then the voltage distribution intensity data of each sensor is integrated by the weighted average method, and then the calculation formula is derived by using the following voltage level: , where is the voltage level, To integrate the voltage distribution intensity of the charged body, is the voltage sensor calibration factor, The correction factor for environmental factors (such as temperature and electromagnetic interference) is used, and the voltage distribution intensity data is input into the above formula to calculate the voltage level of the corresponding live body around the construction power distribution device, so as to quantitatively calculate the voltage level of the live body around the construction power distribution device. At the same time, by combining the voltage level of the live body around the construction power distribution device obtained by quantitative calculation, the live risk limit position simulation between the laser radar and the live body is carried out, so as to set the risk model under different voltage levels by using the system simulation software, and simulate the influence of the distance between the laser radar and the live body on the live risk. Through calculation and simulation, the limit position distribution points when there is a live risk under different voltage levels are determined, and the safe distance between the laser radar and the live body is measured and calculated by combining these distribution points with the fixed coordinate points of the laser radar using the coordinate point distance calculation method, and the initial value of the live risk safety distance under different voltage levels is quantitatively calculated. Then, the initial value of the live risk safety distance under different voltage levels obtained by previous quantitative calculation is corrected for the impact of the safety distance by combining the turning radius of the construction machinery operation process, and the control value of the live risk safety distance at each voltage level is adjusted by applying the correction calculation formula, and finally the live risk safety distance impact correction value under different voltage levels is obtained.

[0072] Step S4: Use laser radar to identify and analyze approaching objects in the working area around the construction power distribution device to obtain the approaching object identification results around the construction power distribution device, wherein the approaching object identification results around the construction power distribution device include approaching construction personnel and approaching construction machinery; if it is a construction personnel approaching, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion and proximity electricity alarm in the working area around the construction power distribution device, and a construction personnel intrusion and proximity electricity alarm signal is generated; if it is a construction machinery approaching, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the machinery safety distance proximity electricity alarm in the working area around the construction power distribution device, and a construction machinery safety distance proximity electricity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion and proximity electricity alarm display processing on the construction personnel intrusion and proximity electricity alarm signal or the construction machinery safety distance proximity electricity alarm signal, and the construction power distribution device proximity electricity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction power distribution device site proximity electricity alarm notification work.

[0073] In an embodiment of the present invention, a laser radar is used to identify and analyze approaching objects in the working area around the construction power distribution device. During the specific implementation, the laser radar will periodically scan the surrounding environment and convert the scanning results into corresponding approaching object images, which will contain the behavior information of all objects approaching the construction power distribution device. Then, by analyzing these behavior information, the specific behavior of construction personnel or construction machinery is identified. For each identified object, it is classified as "construction personnel" or "construction machinery", thereby obtaining the corresponding approaching object identification results around the construction power distribution device, wherein the approaching object identification results around the construction power distribution device include approaching construction personnel and approaching construction machinery. At the same time, by judging the previously identified results of the objects approaching the construction power distribution device, if the identified results of the objects approaching the construction power distribution device are the approaching behavior of construction personnel, the distance monitoring function of the through-beam grating is triggered, and the through-beam grating will emit an infrared beam, and the actual distance between the construction personnel and the construction power distribution device is determined by measuring the changes in the reflected beam. At the same time, the monitored distance value will be recorded in real time and compared with the preset personnel approach distance threshold. If the monitored distance value is greater than the preset threshold, monitoring will continue to ensure that the construction personnel will not enter the danger zone. If the monitored distance value is less than or equal to the threshold, the sound and light alarm will automatically trigger the corresponding personnel intrusion alarm. The sound and light alarm will emit a loud warning sound and flash the light to alert the construction personnel that they are approaching the danger zone, and at the same time respond to generate a construction personnel intrusion proximity alarm signal. If the identification result of the approaching objects around the construction power distribution device is that of a construction machinery, the laser radar will further measure the voltage level and laser locate the approach distance of the construction machinery, so as to determine the corresponding voltage level through the weak voltage sensor array monitoring in the laser radar, and determine the specific coordinate position of the construction machinery according to the measured laser information, and calculate the actual approach distance between the construction machinery and the construction power distribution device according to the specific coordinate position of the construction machinery, and compare and judge the safety of the calculated approach distance value by using the live risk safety distance correction value of the corresponding voltage level. If the approach distance value is greater than the live risk safety distance correction value, monitoring will continue to ensure that the machinery does not enter the dangerous area. If the approach distance value is less than or equal to the live risk safety distance correction value, the sound and light alarm will also be activated to sound an alarm to alert the machinery operator to ensure that the machinery is operated within a safe distance, thereby generating a construction machinery safety distance proximity alarm signal in response.Then, by uploading the construction personnel intrusion near electricity alarm signal or the construction machinery safety distance near electricity alarm signal generated by the previous response to the LED display screen, the LED display screen will display the corresponding alarm information in real time according to the signal content, and the LED display screen will display obvious warning signs, alarm signals and related information. For example, when the construction personnel intrusion near electricity alarm signal is generated, it triggers the display of "construction personnel entering the dangerous area", and when the construction machinery safety distance near electricity alarm signal is generated, it triggers the display of "construction machinery near electricity distance X.XX meters", thereby displaying the construction power distribution device near electricity alarm information. Finally, by uploading the construction power distribution device near electricity alarm information generated by the previous display to the early warning platform of the construction site, the management personnel of the early warning platform will convert the construction power distribution device near electricity alarm information into a text message notification and send it to the management personnel of the construction site. The notification content includes the specific information of the alarm, the location of occurrence and the recommended safety measures, etc., to ensure that the management personnel can understand the situation in time and take corresponding preventive measures, and finally generate the corresponding construction site near electricity alarm management personnel notification text message to perform the corresponding construction power distribution device site near electricity alarm notification work.

[0074] Further, as an embodiment of the present invention, refer to Figure 2 As shown, Figure 1 Detailed step flow diagram of step S1 in FIG. 1 , in this embodiment, step S1 includes the following steps:

[0075] Step S11: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen;

[0076] In an embodiment of the present invention, a series of safety monitoring equipment including a beam grating, a laser radar, an audible and visual alarm and an LED display screen are installed in the working area around the construction power distribution device. First, a suitable installation position is selected, that is, the beam grating is installed in the lower section (below 2 meters) of the construction power distribution device, and the laser radar is installed in the upper section (above 2 meters, close to the crane, excavator and other construction machinery with live parts), to ensure that the beam grating and the laser radar can cover the entire range of the working area, and the output ends of the beam grating and the laser radar are electrically connected to the input end of the audible and visual alarm respectively, so that when the beam grating or the laser radar detects that the construction personnel or construction machinery enters the dangerous area, the audible and visual alarm can immediately sound an alarm. At the same time, the output end of the audible and visual alarm is connected to the LED display screen, so that when the alarm is triggered, the alarm status or related information can be displayed on the LED display screen, wherein the cables of all equipment need to be wired in accordance with electrical specifications to ensure that the connection is stable and will not be interfered with by the outside world.

[0077] Step S12: performing electrical layout topology analysis on the internal structure of the laser radar to obtain the internal electrical layout topology structure of the laser radar;

[0078] In an embodiment of the present invention, an electrical layout topology analysis is performed on the internal structure of the laser radar. This process includes a detailed electrical connectivity analysis of the laser radar's internal circuit board, cable connections, sensor layout, etc., and the electrical components inside the laser radar are modeled by using electrical design software. An electrical topology diagram is generated, which includes each electrical connection point on the circuit board, the signal flow path and its electrical properties, and finally the internal electrical layout topology structure of the laser radar is obtained.

[0079] Step S13: performing an optimal sensor layout guidance analysis on the internal structure of the laser radar based on the internal electrical layout topology of the laser radar, so as to obtain an optimal layout scheme for the internal structure sensors of the laser radar;

[0080] In an embodiment of the present invention, the optimal sensor layout guidance analysis is performed on the corresponding internal structure of the laser radar by combining the internal electrical layout topology structure of the laser radar obtained by the previous topological analysis. This analysis simulates the electrical environment inside the laser radar by using an electrical simulation tool. Through the simulation, the performance of the sensor at different positions is determined, including the signal strength and noise level. Based on the analysis results, the optimal sensor layout scheme is selected, that is, several areas with the best electrical characteristics are selected inside the laser radar to place the sensors. In this process, factors such as the operating frequency of the laser radar, the distribution of electrical noise, and the signal coverage range of the sensor should be taken into account to ensure that the sensor can effectively capture the required signal and show the best working effect in actual applications, and finally the optimal layout scheme of the sensor of the internal structure of the laser radar is obtained.

[0081] Step S14: integrating and deploying a plurality of weak voltage sensors inside the laser radar according to the optimal arrangement scheme of sensors in the internal structure of the laser radar, and performing network connection processing on the plurality of weak voltage sensors integrated inside the laser radar to generate an initial array of weak voltage sensors;

[0082] In an embodiment of the present invention, a plurality of weak voltage sensors are integrated and deployed inside the laser radar in combination with a previously determined optimal arrangement scheme of the internal structure sensors of the laser radar, so that several appropriate weak voltage sensors are selected and installed at predetermined deployment positions within the optimal arrangement scheme of the internal structure sensors of the laser radar, and precise installation tools and methods are used to ensure that each weak voltage sensor is stably fixed at a specified position, and these weak voltage sensors are connected to a network through appropriate cables to ensure that all sensors can communicate with each other and transmit data to a central processing unit, and the cable wiring must be carried out in accordance with electrical safety standards to prevent signal interference or short circuits, wherein the processing of the network connection requires careful inspection of each connection point to ensure accurate transmission of the sensor data, and finally the connection generates an initial array of weak voltage sensors.

[0083] Step S15: optimizing and adjusting the sensing gap of the initial weak voltage sensor array to construct a weak voltage sensor array.

[0084] In an embodiment of the present invention, the sensing gap of the weak voltage sensor initial array previously obtained through network connection is optimized and adjusted. This process includes analyzing the weak voltage sensors in the weak voltage sensor initial array to identify possible sensor coverage blind areas or data redundant areas, and using an optimization algorithm to adjust the layout of the weak voltage sensors to ensure that the position of each weak voltage sensor can minimize the coverage blind area and improve the accuracy and coverage of the overall data acquisition, so as to construct an optimal weak voltage sensor array based on the optimization results, thereby achieving optimal electrical performance and sensing capability in the laser radar, and finally constructing a weak voltage sensor array.

[0085] Further, as an embodiment of the present invention, refer to Figure 3 As shown, Figure 2 Detailed step flow diagram of step S15 in FIG. 1 , in this embodiment, step S15 includes the following steps:

[0086] Step S151: performing an electrical connection verification test between each weak voltage sensor in the weak voltage sensor initial array to obtain an electrical connection test result between the weak voltage sensors;

[0087] In an embodiment of the present invention, a digital multimeter or a resistance tester is used to perform an electrical connection verification test between each weak voltage sensor in the weak voltage sensor initial array to measure the electrical connection status between the voltage sensors. The specific implementation includes connecting the test probe of the test instrument to the pins of two adjacent voltage sensors, and verifying the integrity of the electrical connection by reading the resistance value displayed by the test instrument. If the test value shows a low resistance or close to zero, it indicates that the connection is normal; if the resistance value is high or infinite, it indicates that there is a problem with the connection, and the test results of each pair of sensors are recorded and summarized to form an electrical connection test result, and finally the electrical connection test result between the weak voltage sensors is obtained.

[0088] Step S152: Based on the electrical connection test result between the weak voltage sensors, an electrical connection improvement suggestion analysis is performed between each weak voltage sensor in the initial weak voltage sensor array to generate an electrical connection improvement plan between the weak voltage sensors; and according to the electrical connection improvement plan between the weak voltage sensors, an electrical connection improvement calibration process is performed on the initial weak voltage sensor array to obtain an electrical improvement array between the weak voltage sensors;

[0089] In an embodiment of the present invention, by combining the electrical connection test results between weak voltage sensors obtained by previous tests, a suggestion analysis of the electrical connection improvement plan is performed between each weak voltage sensor with electrical connection defects in the initial array of weak voltage sensors, so as to identify the voltage sensor pairs with poor connection by analyzing the test results, and use electrical design software to perform simulation analysis, and propose improvement suggestions, such as adjusting cable wiring, adding connection points, etc., so as to generate an improvement plan for the electrical connection between weak voltage sensors. At the same time, by combining the electrical connection improvement plan between weak voltage sensors obtained after the previous suggested improvement, the initial array of weak voltage sensors is subjected to electrical connection improvement calibration processing to adjust and calibrate the electrical connection, including re-welding the connection points or replacing the connection lines. After the improvement is completed, the electrical connection verification is performed again to ensure that all improvement measures are effectively implemented, and finally an electrical improvement array between weak voltage sensors is obtained.

[0090] Step S153: analyzing the sensing monitoring range of each weak voltage sensor in the weak voltage sensor room electrical improvement array to obtain the sensing monitoring range size corresponding to each weak voltage sensor;

[0091] In an embodiment of the present invention, a statistical analysis of the sensing monitoring range of each weak voltage sensor in the electrical improvement array of the weak voltage sensor room is performed, and standard sensor testing equipment is used to apply it to each weak voltage sensor to measure its effective monitoring range in an actual working environment. These ranges can be obtained through the display results of the test instrument, and the sensing monitoring range size of each sensor is recorded, and finally the sensing monitoring range size corresponding to each weak voltage sensor is obtained.

[0092] Step S154: Based on the sensing monitoring range size corresponding to each weak voltage sensor, the overlapping area and the blank area area between each weak voltage sensor in the electrical improvement array of the weak voltage sensor are measured to obtain the overlapping area size and the gap blank area size between each weak voltage sensor; the sensing monitoring gap is quantitatively calculated according to the ratio of the overlapping area size and the gap blank area size between each weak voltage sensor to obtain the network sensing monitoring gap between each weak voltage sensor;

[0093] In an embodiment of the present invention, the overlapping area and blank area between each weak voltage sensor in the electrical improvement array of the weak voltage sensor are measured and determined by combining the sensing monitoring range size corresponding to each weak voltage sensor obtained by previous monitoring, so as to measure the overlapping area and blank area between the weak voltage sensors, identify the overlapping part and blank part of the sensor monitoring area by using image processing software or measurement tools, and quantify the overlapping area area and the gap blank area area between each sensor, so as to obtain the overlapping area size and the gap blank area size between each weak voltage sensor. Further, by using the ratio between the overlapping area size and the gap blank area size, the sensing monitoring gap is quantitatively calculated, and this calculation result is used to evaluate the coverage efficiency and monitoring quality of the sensor array, and finally obtain the network sensing monitoring gap between each weak voltage sensor.

[0094] Step S155: Based on the network sensing monitoring gap between each weak voltage sensor, the sensing gap of each weak voltage sensor in the weak voltage sensor electrical improvement array is optimized and adjusted to construct a weak voltage sensor array.

[0095] In an embodiment of the present invention, the sensing gap of each weak voltage sensor whose corresponding network sensing gap is greater than or equal to a preset threshold value in the electrical improved array of weak voltage sensors is optimized and adjusted by combining the network sensing monitoring gap between each weak voltage sensor obtained by previous quantitative calculation, so as to compare and judge the network sensing monitoring gap according to the preset threshold value, so as to screen out each weak voltage sensor whose network sensing monitoring gap is greater than or equal to the preset threshold value, and adjust the position, spacing and arrangement of the sensors by using optimization algorithms or computer-aided design tools to reduce the monitoring gap and optimize the monitoring coverage, and the adjustment process includes rearranging the sensors, adjusting their installation angles, etc., until the expected sensor array configuration is achieved, and finally a weak voltage sensor array is constructed.

[0096] Further, step S2 includes the following steps:

[0097] Step S21: installing a wireless positioning sensor and an angle sensor on the construction machinery operation end, and using the wireless positioning sensor to perform real-time positioning processing on the real-time operation process of the construction machinery operation end, so as to obtain real-time position positioning data of the construction machinery operation;

[0098] In an embodiment of the present invention, corresponding wireless positioning sensors and angle sensors are installed on the working end of a construction machine, wherein a wireless positioning sensor such as a global positioning system (GPS) receiver is installed on the working end of the machine to provide working position data in real time through satellite signals, and an angle sensor is installed at a key position of a mechanical arm of the working end of the construction machine to measure the inclination of the working end. At the same time, the installed wireless positioning sensor is started to perform real-time positioning processing on the real-time working process of the working end of the construction machine to obtain the real-time positioning position of the working end of the construction machine, and finally obtain the real-time positioning data of the construction machine operation.

[0099] Step S22: using an angle sensor to monitor the real-time operation process of the construction machinery operation end and the operation inclination angle in real time, so as to obtain the real-time operation inclination angle data of the construction machinery;

[0100] In an embodiment of the present invention, the real-time inclination angle of the working end of the construction machinery is monitored in real time by using a previously installed angle sensor. The angle sensor can measure and record the changes in the inclination angle of the working end of the construction machinery. The data acquisition system receives the data from the sensor in real time and records the inclination value at each time point, and finally obtains the real-time inclination angle data of the construction machinery operation.

[0101] Step S23: performing spatial dynamic grid division modeling on the real-time location positioning data of the construction machinery operation to obtain a spatial dynamic grid model of the construction machinery operation position change;

[0102] In an embodiment of the present invention, the real-time position positioning data of the construction machinery operation obtained by previous real-time positioning monitoring is input into the spatial grid modeling tool, and the real-time position positioning data of the construction machinery operation is dynamically grid-divided according to a predetermined spatial range by starting the spatial grid modeling tool. Each grid represents a specific spatial area. In this process, the grid size and division method need to be configured according to the working range and accuracy requirements of the construction machinery, and the operation position data in each grid is statistically analyzed to obtain a spatial dynamic grid model of position changes. This model shows the spatial changes during the operation process, and finally a spatial dynamic grid model of the construction machinery operation position changes is obtained.

[0103] Step S24: Based on the real-time position positioning data of the construction machinery operation, the real-time inclination angle data of the construction machinery operation is subjected to time-series synchronization processing to obtain the inclination angle data of the construction machinery operation in the same time-series dimension; based on the spatial dynamic grid model of the construction machinery operation position change, the inclination angle spatial distribution mapping processing is performed on the construction machinery operation inclination angle data in the same time-series dimension to obtain the spatial distribution model of the inclination angle change of the construction machinery at different operation positions;

[0104] In an embodiment of the present invention, the real-time position positioning data of the construction machinery operation is obtained by combining the previous positioning monitoring to perform time synchronization processing on the corresponding real-time inclination data of the construction machinery operation, so as to ensure the matching of the data in the same time dimension by aligning the timestamps of the real-time position data obtained by the previous monitoring with the corresponding inclination data, thereby obtaining the inclination data of the construction machinery operation in the same time dimension. At the same time, after completing the time synchronization processing, the spatial dynamic grid model of the construction machinery operation position change obtained by the previous division is used to perform spatial distribution mapping processing on the construction machinery operation inclination data in the same time dimension after time synchronization. This processing maps the inclination data to the specific operation position in the spatial grid model, and finally obtains the spatial distribution model of the inclination change of the construction machinery at different operation positions.

[0105] Step S25: Based on the spatial distribution model of the inclination angle change of the construction machinery at different working positions, the turning radius of the construction machinery at the working end of the construction machinery is measured and verified to obtain the turning radius of the construction machinery during the working process.

[0106] In an embodiment of the present invention, the turning radius of the corresponding working end of the construction machinery is monitored and measured by combining the spatial distribution model of the inclination change of the construction machinery at different working positions obtained by previous mapping, so as to analyze the turning trajectory of the working end of the construction machinery based on the spatial distribution model of the inclination change obtained by previous mapping, and determine the radius of the rotation of the construction machinery during the operation process through the arc parameters extracted from the model. In the actual measurement process, a laser rangefinder or a similar tool can be used to measure the actual radius of rotation from the working end of the construction machinery, and the measurement results can be compared and verified with the model parameters. The accuracy of the model can be verified by comparing the results, and the turning radius of the construction machinery during the operation process can be verified and determined, so as to finally obtain the turning radius of the construction machinery during the operation process.

[0107] Further, step S25 includes the following steps:

[0108] Step S251: performing space vector conversion on the spatial distribution model of the inclination angle variation of the construction machinery at different working positions to obtain the space vector of the inclination angle variation of the construction machinery at the distribution points of different working positions;

[0109] In an embodiment of the present invention, a spatial vector conversion is performed on the spatial distribution model of the inclination change of the construction machinery at different working positions obtained by the previous mapping, so that the inclination data of the different working positions are collected in real time by the inclination sensor installed on the construction machinery, and the relative position coordinates of each working position are measured by using a high-precision laser rangefinder or a total station. These data are input into the spatial vector conversion algorithm. The algorithm combines the sensor data and the spatial coordinate information to generate the inclination change space vector of the construction machinery at different working positions. The specific operation includes using a mathematical model such as a coordinate transformation matrix to convert the inclination data read by the sensor and the measured spatial coordinates into a spatial vector. This process can be completed using computer-aided design software or special engineering analysis tools to ensure the accuracy of the data and the validity of the spatial vector, and finally the inclination change space vector of the construction machinery at different working position distribution points is obtained.

[0110] Step S252: performing geometric motion trajectory analysis on the working end of the construction machinery based on the inclination change space vectors of the construction machinery at different working position distribution points, so as to obtain the geometric motion trajectory of the inclination change of the construction machinery at different working positions;

[0111] In an embodiment of the present invention, the geometric motion trajectory of the corresponding construction machinery working end is analyzed by combining the inclination change space vectors of the construction machinery at different working position distribution points obtained by previous conversion, so as to analyze the geometric motion trajectory of the construction machinery working end by using the inclination change space vectors obtained from the previous conversion and adopting geometric analysis methods, such as curve fitting or kinematic analysis. The specific steps include first constructing a mathematical model to describe the motion trajectory of the construction machinery working end, which involves establishing a kinematic model of the robot arm or using an inverse kinematics algorithm, and calculating the geometric motion trajectory of the working end at different working positions by substituting the spatial vector data into the model. This analysis is usually implemented using engineering simulation software, which may include simulating the trajectory of the working end to ensure that the analyzed geometric trajectory accurately reflects the actual working conditions, and finally obtaining the geometric motion trajectory of the construction machinery with inclination changes at different working positions.

[0112] Step S253: performing arc fitting processing on the geometric motion trajectory of the inclination change of the construction machinery at different working positions to obtain arc fitting parameters of the inclination change of the construction machinery at different working positions;

[0113] In an embodiment of the present invention, a curve fitting technique is used to fit the corresponding data points in the geometric motion trajectory of the inclination change of the construction machinery at different working positions that have been previously determined into an arc shape. The specific method includes fitting the measured data points in the geometric motion trajectory of the inclination change into an arc by using the least squares method or other optimization algorithms, and calculating the parameters such as the center point, radius, and starting and ending angles of the arc. Usually, engineering software or mathematical tools can be used to implement this fitting process. By inputting geometric data points and selecting a fitting algorithm, arc fitting parameters are obtained, and finally the arc fitting parameters of the inclination change of the construction machinery at different working positions are obtained.

[0114] Step S254: measuring and verifying the turning radius of the construction machinery at the working end of the construction machinery based on the arc fitting parameters of the inclination change of the construction machinery at different working positions, and obtaining the turning radius of the construction machinery during the working process.

[0115] In an embodiment of the present invention, the turning radius of the corresponding working end of the construction machinery is measured by combining the arc fitting parameters of the inclination change of the construction machinery at different working positions obtained by previous fitting calculation, and the turning radius of the working end of the construction machinery is determined by the arc parameters obtained by the aforementioned arc fitting. The specific operation includes using the arc radius obtained by fitting to directly characterize the turning radius of the construction machinery, and at the same time using a measuring instrument such as a laser rangefinder or a total station to measure the actual turning radius from the working end of the construction machinery. This step usually involves setting measurement points and performing actual measurements to verify and adjust the accuracy of the turning radius estimated by previous fitting to ensure the accuracy of the measurement process. The measuring instrument needs to be calibrated during the operation to avoid errors affecting the final results, and finally the turning radius of the construction machinery operation process is obtained.

[0116] Further, step S3 includes the following steps:

[0117] Step S31: performing electromagnetic environment calibration on the weak voltage sensor array to obtain a voltage sensor electromagnetic environment calibration data set; performing dynamic sensitivity calibration on the weak voltage sensor array based on the voltage sensor electromagnetic environment calibration data set to obtain a weak voltage sensor sensitive calibration array;

[0118] In an embodiment of the present invention, the electromagnetic environment of the weak voltage sensor array is calibrated, and an electromagnetic interference source is set to simulate the electromagnetic field in the actual environment, and the weak voltage sensor array is placed in the electromagnetic field generated by the interference source, and the sensor's response to electromagnetic waves of different frequencies and intensities is recorded. The response calibration data of the voltage sensor in various electromagnetic environments is obtained by measuring using a standard electromagnetic field test device, thereby obtaining a voltage sensor electromagnetic environment calibration data set to characterize the voltage response characteristics of the voltage sensor under specific electromagnetic interference. At the same time, by combining the voltage sensor electromagnetic environment calibration data set obtained by previous calibration, the sensitivity setting of each voltage sensor in the weak voltage sensor array is dynamically adjusted, so that the voltage sensor can accurately measure the weak voltage signal, and finally a weak voltage sensor sensitive calibration array is obtained.

[0119] Step S32: using a sensitive calibration array of weak voltage sensors to perform real-time monitoring of the electric field distribution of the charged bodies in the working area around the construction power distribution device, and obtaining an electric field distribution map of the charged bodies around the construction power distribution device;

[0120] In an embodiment of the present invention, the electric field distribution intensity of the charged body in the working area around the construction power distribution device is monitored in real time by using the weak voltage sensor sensitive calibration array obtained after the sensitivity calibration, so that the electric field signal around the charged body is automatically collected by starting the corresponding voltage sensor in the weak voltage sensor sensitive calibration array, and the automatically collected electric field signal is transmitted to the data processing center through the real-time monitoring system, and the electric field distribution spectrum of the corresponding charged body is visualized and generated by using the real-time signal processing software to display the electric field strength and voltage distribution, so as to finally obtain the electric field distribution spectrum of the charged body around the construction power distribution device.

[0121] Step S33: Based on the electric field distribution spectrum of the charged body around the construction power distribution device, the voltage signal monitored by each voltage sensor in the sensitive calibration array of the weak voltage sensor is integrated and processed to obtain the voltage distribution intensity data of the charged body around the construction power distribution device; based on the voltage distribution intensity data of the charged body around the construction power distribution device, the voltage level of the charged body in the working area around the construction power distribution device is derived and calculated to obtain the voltage level of the charged body around the construction power distribution device;

[0122] In the embodiment of the present invention, the voltage signal recorded by each voltage sensor is analyzed by combining the electric field distribution map of the charged body around the construction power distribution device obtained by the previous distribution analysis, and these voltage signals are integrated to calculate the voltage distribution intensity of the corresponding charged body, so as to obtain the voltage distribution intensity data of the charged body around the construction power distribution device by normalizing the voltage data of each sensor and then integrating the voltage data of each sensor by weighted average method. Then, the calculation formula is derived by using the following voltage level: , where is the voltage level, To integrate the voltage distribution intensity of the charged body, is the voltage sensor calibration factor, The correction factor for environmental factors (such as those caused by temperature and electromagnetic interference) is used, and the voltage distribution intensity data is input into the above formula to calculate the voltage level of the live parts around the corresponding construction distribution device. This step uses mathematical models and data processing algorithms to ensure the accurate derivation of the voltage level, and finally quantifies the voltage level of the live parts around the construction distribution device.

[0123] Step S34: Based on the voltage level of the charged body around the construction power distribution device, the limit position simulation of the charged risk between the laser radar and the charged body is determined to obtain the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions; based on the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions, the initial measurement of the charge risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charge risk safety distance under different voltage levels;

[0124] In an embodiment of the present invention, by combining the voltage level of the charged body around the construction power distribution device obtained by quantitative calculation previously, the live risk limit position simulation between the laser radar and the charged body is performed, so as to set the risk model under different voltage levels by using system simulation software, and simulate the influence of the distance between the laser radar and the charged body on the live risk. By calculation and simulation, the limit position distribution points when there is a live risk under different voltage levels are determined, so as to simulate the live risk limit position distribution points between the laser radar and the charged body under different voltage levels. At the same time, by combining these distribution points with the fixed coordinate points of the laser radar and using the coordinate point distance calculation method to measure and calculate the safe distance between the laser radar and the charged body, the initial control value of the live risk safety distance under different voltage levels is finally obtained by quantitative calculation.

[0125] Step S35: Based on the turning radius of the construction machinery operation process, the live risk safety distance impact correction calculation formula is used to perform safety distance impact correction on the initial control value of the live risk safety distance under different voltage levels to obtain the live risk safety distance impact correction value under different voltage levels.

[0126] In an embodiment of the present invention, a suitable correction calculation formula for the impact of live risk safety distance is formed by combining the measurement parameters of voltage level, the initial control value of live risk safety distance, the turning radius of the construction machinery operation process, the voltage level influence coefficient, the length of the operation area of ​​the construction machinery operation process, the integral variable parameter of the operation area length, the complexity coefficient of the construction machinery operation, the live risk distance attenuation factor and related parameters to correct the impact of the safety distance on the initial control value of the live risk safety distance at different voltage levels, and the correction calculation formula is used to adjust the control value of the live risk safety distance at each voltage level, and finally the correction value of the impact of the live risk safety distance at different voltage levels is obtained.

[0127] Furthermore, the calculation formula for correcting the impact of the live risk safety distance described in step S35 is specifically:

[0128] ;

[0129] In the formula, For voltage level The impact correction value of the live risk safety distance under is the measurement parameter of voltage level, For voltage level The initial control value of the live risk safety distance under is the turning radius of the construction machinery during operation. is the voltage level influence coefficient, is the length of the operation area during the operation of the construction machinery, is the integral variable parameter of the operating area length, is the complexity coefficient of construction machinery operation, is the distance attenuation factor of the charged risk, It is the correction factor for the impact of the safety distance correction value on the risk of live electricity.

[0130] The present invention obtains a calculation formula for correcting the impact of live risk safety distance by using a specific mathematical model and after verification, which is used to correct the impact of safety distance on the initial control value of live risk safety distance under different voltage levels. The calculation formula for correcting the impact of live risk safety distance improves the accurate estimation of live risk safety distance by comprehensively considering voltage level, turning radius, length of working area and other factors, which can better prevent safety accidents between construction machinery and live objects. In addition, by introducing different coefficients (such as voltage level influence coefficient, complexity coefficient, etc.), the formula can adapt to different construction environments and electrical conditions, thereby providing more targeted safety distance adjustment. By correcting the turning radius and the length of the working area, the safety distance can be dynamically adjusted according to the actual operating conditions, thereby improving the real-time and effectiveness of safety. In addition, the attenuation factor and correction coefficient in the calculation formula help to predict and adjust the risk distribution under different voltage levels, thereby providing a more reasonable safety distance control value. In general, the calculation formula can achieve effective control and safety optimization of live risks during construction by systematically integrating multiple variables. Therefore, the formula fully considers the voltage level. Correction value of the impact of the safety distance of the live risk under , voltage level measurement parameters , at voltage level Initial control value of live risk safety distance under , the turning radius of construction machinery during operation , voltage level influence coefficient , the length of the working area during the construction machinery operation process , operating area length integral variable parameter , construction machinery operation complexity coefficient , distance attenuation factor of charged risk , Correction coefficient of the correction value of the safety distance of live risk , according to the voltage level Correction value of the impact of the safety distance of the live risk under The correlation between the above parameters constitutes a functional relationship This formula can realize the safety distance impact correction process of the initial control value of the live risk safety distance under different voltage levels. At the same time, the correction coefficient of the live risk safety distance impact correction value is calculated. The introduction of can be adjusted according to the errors occurring in the calculation process, thereby improving the accuracy and applicability of the calculation formula for correcting the impact of live risk safety distance.

[0131] Further, step S4 includes the following steps:

[0132] Step S41: using a laser radar to perform object recognition analysis on the working area around the construction power distribution device to obtain recognition results of objects approaching the construction power distribution device, wherein the recognition results of objects approaching the construction power distribution device include construction personnel approaching and construction machinery approaching;

[0133] In an embodiment of the present invention, a laser radar is used to identify and analyze approaching objects in the working area around the construction power distribution device. During the specific implementation, the laser radar will periodically scan the surrounding environment and convert the scanning results into corresponding approaching object images. The approaching object images will contain the behavior action information of all objects approaching the construction power distribution device. Then, by analyzing these behavior action information, the specific behavior actions of construction personnel or construction machinery are identified. For each identified object, it is classified as "construction personnel" or "construction machinery", and its approach status is recorded. The recognition results will be classified into two situations: construction personnel approaching or construction machinery approaching, and finally the corresponding approaching object recognition results around the construction power distribution device are obtained.

[0134] Step S42: judging the result of the identification of the objects approaching the construction power distribution device, if the result of the identification of the objects approaching the construction power distribution device is that the construction personnel are approaching, triggering the reflected grating to monitor the approaching behavior of the construction personnel, and obtaining the grating monitoring distance value of the approaching behavior of the construction personnel; comparing and judging the grating monitoring distance value of the approaching behavior of the construction personnel according to the preset personnel approaching distance threshold, when the grating monitoring distance value of the approaching behavior of the construction personnel is greater than the preset personnel approaching distance threshold, continuing the approaching distance monitoring; when the grating monitoring distance value of the approaching behavior of the construction personnel is less than or equal to the preset personnel approaching distance threshold, using the sound and light alarm to respond to the personnel intrusion and proximity alarm of the working area around the construction power distribution device, and generating a construction personnel intrusion and proximity alarm signal;

[0135] In an embodiment of the present invention, by judging the previously identified results of the approaching objects around the construction power distribution device, if the identified results of the approaching objects around the construction power distribution device are the approaching behavior of construction personnel, the distance monitoring function of the through-beam grating is triggered, and the through-beam grating will emit an infrared beam, and the actual distance between the construction personnel and the construction power distribution device is determined by measuring the change of the reflected beam. At the same time, the monitored distance value will be recorded in real time and compared with the preset personnel approach distance threshold. If the monitored distance value is greater than the preset threshold, monitoring will continue to ensure that the construction personnel will not enter the dangerous area. If the monitored distance value is less than or equal to the threshold, the sound and light alarm will automatically trigger the corresponding personnel intrusion alarm. The sound and light alarm will emit a loud warning sound and flash the light to warn the construction personnel that they are approaching the dangerous area, and generate a corresponding personnel intrusion proximity alarm signal to ensure timely response and protect safety, and finally respond to generate a construction personnel intrusion proximity alarm signal.

[0136] Step S43: If the result of the identification of the approaching object around the construction power distribution device is that the construction machinery is approaching, the laser radar is triggered to measure the voltage level and perform laser positioning of the approach distance on the construction machinery in the working area around the construction power distribution device, so as to obtain the laser positioning approach distance value of the construction machinery at the corresponding voltage level; based on the correction value of the impact of the live risk safety distance at different voltage levels, the safety distance judgment is performed on the laser positioning approach distance value of the construction machinery at the corresponding voltage level, and when the laser positioning approach distance value is greater than the corresponding correction value of the impact of the live risk safety distance, the approach distance laser positioning processing is continued; when the laser positioning approach distance value is less than or equal to the corresponding correction value of the impact of the live risk safety distance, the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the corresponding construction machinery in the working area around the construction power distribution device, and a construction machinery safety distance proximity alarm signal is generated;

[0137] In an embodiment of the present invention, if the identification result of the approaching objects around the construction power distribution device is that the construction machinery is approaching, the laser radar will further measure the voltage level and laser locate the approach distance of the construction machinery, so as to determine the corresponding voltage level through the weak voltage sensor array monitoring in the laser radar, and determine the specific coordinate position of the construction machinery according to the measured laser information, and also calculate the actual approach distance between the construction machinery and the construction power distribution device according to the specific coordinate position of the construction machinery, and then, by using the live risk safety distance correction value of the corresponding voltage level, the calculated approach distance value is compared and judged for safety, if the approach distance value is greater than the live risk safety distance correction value, monitoring will continue to ensure that the machinery will not enter the dangerous area, and if the approach distance value is less than or equal to the live risk safety distance correction value, the sound and light alarm will also be activated to sound an alarm to warn the machinery operator, generate a corresponding safety distance proximity alarm signal, ensure that the machinery is operated within a safe distance, and finally respond to generate a construction machinery safety distance proximity alarm signal.

[0138] Step S44: uploading the generated construction personnel intrusion proximity alarm signal or construction machinery safety distance proximity alarm signal to the LED display screen, and using the LED display screen to perform construction proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal to obtain construction power distribution device proximity alarm information;

[0139] In an embodiment of the present invention, by uploading the construction personnel intrusion near electricity alarm signal or the construction machinery safety distance near electricity alarm signal generated in the previous response to the LED display screen, the LED display screen will display the corresponding alarm information in real time according to the signal content, and the LED display screen will display obvious warning signs, alarm signals and related information to ensure that all personnel at the construction site can clearly see the alarm content. The purpose of this display processing is to prominently convey the alarm information to the on-site personnel so that corresponding safety measures can be quickly taken. For example, when the construction personnel intrusion near electricity alarm signal is generated, it will trigger the display of "Construction personnel entering the dangerous area", and when the construction machinery safety distance near electricity alarm signal is generated, it will trigger the display of "Construction machinery near electricity distance X.XX meters", and finally the construction power distribution device near electricity alarm information is displayed.

[0140] Step S45: Upload the near-power alarm information of the construction power distribution device to the construction site early warning platform to respond to the near-power alarm notification, generate a notification SMS for the near-power alarm management personnel of the construction site, and execute the corresponding near-power alarm notification work of the construction power distribution device site.

[0141] In an embodiment of the present invention, by uploading the previously displayed generated construction power distribution device near-electricity alarm information to the early warning platform of the construction site, the management personnel of the early warning platform will convert the construction power distribution device near-electricity alarm information into a text message notification and send it to the management personnel of the construction site. The notification content includes the specific information of the alarm, the location of occurrence and the recommended safety measures, etc., to ensure that the management personnel can understand the situation in time and take corresponding preventive measures. This process is completed through an automated system, which ensures the timely communication and processing of the alarm information, and finally generates the corresponding construction site near-electricity alarm management personnel notification text message to execute the corresponding construction power distribution device site near-electricity alarm notification work.

[0142] Further, step S41 includes the following steps:

[0143] The laser radar is used to comprehensively identify and scan the working area around the construction power distribution device to obtain a three-dimensional point cloud data set of the area around the construction power distribution device;

[0144] In an embodiment of the present invention, a laser radar is used to perform a comprehensive scan of the working area around the construction power distribution device to scan and obtain a data set of three-dimensional space point clouds in the area. The laser radar equipment is installed in a fixed position, usually at a high place or an appropriate position in the working area, so as to fully cover the target working area. The laser radar measures the distance to the target object by emitting a laser beam and receiving a reflected signal. This process generates a large amount of distance measurement data, which will be converted into point cloud data. The point cloud data set contains the three-dimensional coordinate information of all objects in the area, and finally a three-dimensional space point cloud data set of the area around the construction power distribution device is obtained.

[0145] Preferably, the three-dimensional space point cloud data set of the area around the construction power distribution device is subjected to spatial object layering processing to obtain different spatial object layering models in the area around the construction power distribution device;

[0146] In an embodiment of the present invention, spatial objects are hierarchically processed by applying point cloud processing software or algorithms (such as algorithms based on cluster analysis) to a three-dimensional spatial point cloud data set of the area around the construction power distribution device previously scanned, so as to identify different spatial objects. In this processing process, the point cloud data will be divided into different parts, each part representing a spatial object. The purpose of the hierarchical processing is to classify the spatial objects in the construction power distribution device and its surrounding area according to function or type, for example, to separate construction machinery, building structures and personnel, etc. Through this hierarchical model, the boundaries and positions of different spatial objects can be clarified. For example, it can also be divided into an upper area (for monitoring the behavior of construction machinery) and a lower area (for monitoring the behavior of construction personnel), and finally a hierarchical model of different spatial objects in the area around the construction power distribution device is obtained.

[0147] Preferably, hierarchical object behavior feature analysis is performed on different spatial object hierarchical models in the area around the construction power distribution device to obtain object behavior feature data at different spatial object levels in the area around the construction power distribution device;

[0148] In an embodiment of the present invention, the hierarchical object behavior characteristics are identified and analyzed by the hierarchical object model of different spatial objects in the area around the construction power distribution device obtained after the previous layering process, so as to realize the collection and analysis of the behavior data of each spatial object, for example, the motion data obtained by the monitoring camera or the action data recorded by the sensor, and by analyzing these behavior data, the behavior characteristics of each spatial object are extracted, such as the moving speed, frequency and motion trajectory, etc. This analysis usually uses data mining and machine learning technology, and the purpose is to understand the behavior patterns of different objects in the area around the construction power distribution device. The object behavior characteristic data obtained is used to describe the activity characteristics and existing behavior patterns of each spatial object, and finally the object behavior characteristic data of different spatial object levels in the area around the construction power distribution device are obtained.

[0149] Preferably, based on the object behavior feature data of different spatial object levels in the area around the construction power distribution device, approaching object recognition analysis is performed on the working area around the construction power distribution device to obtain approaching object recognition results around the construction power distribution device, wherein the approaching object recognition results around the construction power distribution device include approaching construction personnel and approaching construction machinery.

[0150] In an embodiment of the present invention, approaching object recognition analysis is performed on the working area around the construction power distribution device by combining the object behavior feature data of different spatial object levels in the area around the construction power distribution device obtained by previous recognition and analysis. The goal of this step is to identify approaching objects around the construction power distribution device, including construction personnel and construction machinery, so as to set up safety areas and warning lines, compare the behavior feature data, identify objects approaching the power distribution device, and classify and identify approaching objects by combining real-time data monitoring and historical behavior patterns. For example, if the movement trajectory of an object is consistent with the behavior characteristics of construction personnel, it is marked as "construction personnel"; if it is consistent with the behavior characteristics of construction machinery, it is marked as "construction machinery", and finally the approaching object recognition results around the construction power distribution device are identified, wherein the approaching object recognition results around the construction power distribution device include approaching construction personnel and approaching construction machinery.

[0151] Furthermore, the present invention also provides a power proximity alarm system for construction of a power distribution device, which is used to execute the power proximity alarm method for construction of a power distribution device as described above. The power proximity alarm system for construction of a power distribution device comprises:

[0152] The equipment connection configuration module around the construction power distribution device is used to install a beam grating, a laser radar, an audible and visual alarm and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array;

[0153] The construction machinery operation turning radius monitoring module is used to install a wireless positioning sensor and an angle sensor on the construction machinery operation end, and use the wireless positioning sensor and the angle sensor to locate the real-time operation process of the construction machinery operation end and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, the construction machinery operation end is measured and verified for the construction machinery turning radius, so as to obtain the turning radius of the construction machinery operation process;

[0154] The construction power distribution device site safety distance measurement module is used to use a weak voltage sensor array to monitor the voltage level of the charged body in the construction power distribution device in real time, and obtain the voltage level of the charged body around the construction power distribution device; based on the voltage level of the charged body around the construction power distribution device, the initial measurement of the charged risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charged risk safety distance at different voltage levels; based on the turning radius of the construction machinery operation process, the initial control value of the charged risk safety distance at different voltage levels is corrected for the safety distance impact, so as to obtain the charged risk safety distance impact correction value at different voltage levels;

[0155] The power distribution device site proximity alarm notification module is used to perform approaching object recognition and analysis on the working area around the construction distribution device through a laser radar, and obtain the approaching object recognition results around the construction distribution device, wherein the approaching object recognition results around the construction distribution device include the approach of construction personnel and the approach of construction machinery; if it is the approach of construction personnel, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion proximity alarm of the working area around the construction distribution device, and a construction personnel intrusion proximity alarm signal is generated; if it is the approach of construction machinery, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the working area around the construction distribution device, and a construction machinery safety distance proximity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal, and the construction distribution device proximity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction distribution device site proximity alarm notification work.

[0156] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those 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 should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A method for warning of near-power supply for construction of power distribution equipment, characterized in that: The following steps are involved: Step S1: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in a working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array; Step S2: by installing a wireless positioning sensor and an angle sensor on the working end of the construction machinery, and using the wireless positioning sensor and the angle sensor to locate the real-time operation process of the working end of the construction machinery and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, the turning radius of the construction machinery working end is measured and verified to obtain the turning radius of the construction machinery operation process; wherein, step S2 includes the following steps: Step S21: installing a wireless positioning sensor and an angle sensor on the construction machinery operation end, and using the wireless positioning sensor to perform real-time positioning processing on the real-time operation process of the construction machinery operation end, so as to obtain real-time position positioning data of the construction machinery operation; Step S22: using an angle sensor to monitor the real-time operation process of the construction machinery operation end and the operation inclination angle in real time, so as to obtain the real-time operation inclination angle data of the construction machinery; Step S23: performing spatial dynamic grid division modeling on the real-time location positioning data of the construction machinery operation to obtain a spatial dynamic grid model of the construction machinery operation position change; Step S24: Based on the real-time position positioning data of the construction machinery operation, the real-time inclination angle data of the construction machinery operation is subjected to time-series synchronization processing to obtain the inclination angle data of the construction machinery operation in the same time-series dimension; based on the spatial dynamic grid model of the construction machinery operation position change, the inclination angle spatial distribution mapping processing is performed on the construction machinery operation inclination angle data in the same time-series dimension to obtain the spatial distribution model of the inclination angle change of the construction machinery at different operation positions; Step S25: measuring and verifying the turning radius of the construction machinery at the working end of the construction machinery based on the spatial distribution model of the inclination angle change of the construction machinery at different working positions, and obtaining the turning radius of the construction machinery during the working process; wherein step S25 includes the following steps: Step S251: performing space vector conversion on the spatial distribution model of the inclination angle variation of the construction machinery at different working positions to obtain the space vector of the inclination angle variation of the construction machinery at the distribution points of different working positions; Step S252: performing geometric motion trajectory analysis on the working end of the construction machinery based on the inclination change space vectors of the construction machinery at different working position distribution points, so as to obtain the geometric motion trajectory of the inclination change of the construction machinery at different working positions; Step S253: performing arc fitting processing on the geometric motion trajectory of the inclination change of the construction machinery at different working positions to obtain arc fitting parameters of the inclination change of the construction machinery at different working positions; Step S254: measuring and verifying the turning radius of the construction machinery at the working end of the construction machinery based on the arc fitting parameters of the inclination change of the construction machinery at different working positions, and obtaining the turning radius of the construction machinery during the working process; Step S3: Use a weak voltage sensor array to monitor the voltage level of the charged body in the working area around the construction power distribution device in real time to obtain the voltage level of the charged body around the construction power distribution device; perform an initial measurement of the charged risk safety distance between the laser radar and the charged body based on the voltage level of the charged body around the construction power distribution device to obtain the initial control value of the charged risk safety distance at different voltage levels; perform a safety distance impact correction on the initial control value of the charged risk safety distance at different voltage levels based on the turning radius of the construction machinery operation process to obtain the charged risk safety distance impact correction value at different voltage levels; Step S4: Use laser radar to identify and analyze approaching objects in the working area around the construction power distribution device to obtain the approaching object identification results around the construction power distribution device, wherein the approaching object identification results around the construction power distribution device include approaching construction personnel and approaching construction machinery; if it is a construction personnel approaching, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion and proximity electricity alarm in the working area around the construction power distribution device, and a construction personnel intrusion and proximity electricity alarm signal is generated; if it is a construction machinery approaching, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the machinery safety distance proximity electricity alarm in the working area around the construction power distribution device, and a construction machinery safety distance proximity electricity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion and proximity electricity alarm display processing on the construction personnel intrusion and proximity electricity alarm signal or the construction machinery safety distance proximity electricity alarm signal, and the construction power distribution device proximity electricity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction power distribution device site proximity electricity alarm notification work.

2. The method for near-power alarm for construction of power distribution equipment according to claim 1, characterized in that: Step S1 includes the following steps: Step S11: installing a beam grating, a laser radar, an audible and visual alarm, and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen; Step S12: performing electrical layout topology analysis on the internal structure of the laser radar to obtain the internal electrical layout topology structure of the laser radar; Step S13: performing an optimal sensor layout guidance analysis on the internal structure of the laser radar based on the internal electrical layout topology of the laser radar, so as to obtain an optimal layout scheme for the internal structure sensors of the laser radar; Step S14: integrating and deploying a plurality of weak voltage sensors inside the laser radar according to the optimal arrangement scheme of sensors in the internal structure of the laser radar, and performing network connection processing on the plurality of weak voltage sensors integrated inside the laser radar to generate an initial array of weak voltage sensors; Step S15: optimizing and adjusting the sensing gap of the initial weak voltage sensor array to construct a weak voltage sensor array.

3. The method for near-power alarm for construction of power distribution equipment according to claim 2, characterized in that: Step S15 includes the following steps: Step S151: performing an electrical connection verification test between each weak voltage sensor in the weak voltage sensor initial array to obtain an electrical connection test result between the weak voltage sensors; Step S152: Based on the electrical connection test result between the weak voltage sensors, an electrical connection improvement suggestion analysis is performed between each weak voltage sensor in the initial weak voltage sensor array to generate an electrical connection improvement plan between the weak voltage sensors; and according to the electrical connection improvement plan between the weak voltage sensors, an electrical connection improvement calibration process is performed on the initial weak voltage sensor array to obtain an electrical improvement array between the weak voltage sensors; Step S153: analyzing the sensing monitoring range of each weak voltage sensor in the weak voltage sensor room electrical improvement array to obtain the sensing monitoring range size corresponding to each weak voltage sensor; Step S154: Based on the sensing monitoring range size corresponding to each weak voltage sensor, the overlapping area and the blank area area between each weak voltage sensor in the electrical improvement array of the weak voltage sensor are measured to obtain the overlapping area size and the gap blank area size between each weak voltage sensor; the sensing monitoring gap is quantitatively calculated according to the ratio of the overlapping area size and the gap blank area size between each weak voltage sensor to obtain the network sensing monitoring gap between each weak voltage sensor; Step S155: Based on the network sensing monitoring gap between each weak voltage sensor, the sensing gap of each weak voltage sensor in the weak voltage sensor electrical improvement array is optimized and adjusted to construct a weak voltage sensor array.

4. The method for near-power alarm for construction of power distribution equipment according to claim 1, characterized in that: Step S3 includes the following steps: Step S31: performing electromagnetic environment calibration on the weak voltage sensor array to obtain a voltage sensor electromagnetic environment calibration data set; performing dynamic sensitivity calibration on the weak voltage sensor array based on the voltage sensor electromagnetic environment calibration data set to obtain a weak voltage sensor sensitive calibration array; Step S32: using a sensitive calibration array of weak voltage sensors to perform real-time monitoring of the electric field distribution of the charged bodies in the working area around the construction power distribution device, and obtaining an electric field distribution map of the charged bodies around the construction power distribution device; Step S33: Based on the electric field distribution spectrum of the charged body around the construction power distribution device, the voltage signal monitored by each voltage sensor in the sensitive calibration array of the weak voltage sensor is integrated and processed to obtain the voltage distribution intensity data of the charged body around the construction power distribution device; based on the voltage distribution intensity data of the charged body around the construction power distribution device, the voltage level of the charged body in the working area around the construction power distribution device is derived and calculated to obtain the voltage level of the charged body around the construction power distribution device; Step S34: Based on the voltage level of the charged body around the construction power distribution device, the limit position simulation of the charged risk between the laser radar and the charged body is determined to obtain the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions; based on the charge risk limit position distribution points between the laser radar and the charged body under different voltage level conditions, the initial measurement of the charge risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charge risk safety distance under different voltage levels; Step S35: Based on the turning radius of the construction machinery operation process, the live risk safety distance impact correction calculation formula is used to perform safety distance impact correction on the initial control value of the live risk safety distance under different voltage levels to obtain the live risk safety distance impact correction value under different voltage levels.

5. The method for near-power alarm for construction of power distribution equipment according to claim 4, characterized in that: The calculation formula for correcting the impact of the live risk safety distance in step S35 is specifically: ； In the formula, For voltage level The impact correction value of the live risk safety distance under is the measurement parameter of voltage level, For voltage level The initial control value of the live risk safety distance under is the turning radius of the construction machinery during operation. is the voltage level influence coefficient, is the length of the operation area during the operation of the construction machinery, is the integral variable parameter of the operating area length, is the complexity coefficient of construction machinery operation, is the distance attenuation factor of the charged risk, It is the correction factor for the impact of the safety distance correction value on the risk of live electricity.

6. The method for near-power alarm for construction of power distribution equipment according to claim 1, characterized in that: Step S4 includes the following steps: Step S41: using a laser radar to perform object recognition analysis on the working area around the construction power distribution device to obtain recognition results of objects around the construction power distribution device, wherein the recognition results of objects around the construction power distribution device include construction personnel approaching and construction machinery approaching; Step S42: judging the result of the identification of the objects approaching the construction power distribution device, if the result of the identification of the objects approaching the construction power distribution device is that the construction personnel are approaching, triggering the corresponding grating to monitor the approaching behavior of the construction personnel, and obtaining the grating monitoring distance value of the approaching behavior of the construction personnel; comparing and judging the grating monitoring distance value of the approaching behavior of the construction personnel according to the preset personnel approaching distance threshold, when the grating monitoring distance value of the approaching behavior of the construction personnel is greater than the preset personnel approaching distance threshold, continuing the approaching distance monitoring; when the grating monitoring distance value of the approaching behavior of the construction personnel is less than or equal to the preset personnel approaching distance threshold, using the sound and light alarm to respond to the personnel intrusion and proximity alarm of the working area around the construction power distribution device, and generating a construction personnel intrusion and proximity alarm signal; Step S43: If the result of the identification of the approaching object around the construction power distribution device is that the construction machinery is approaching, the laser radar is triggered to measure the voltage level and perform laser positioning of the approach distance on the construction machinery in the working area around the construction power distribution device, so as to obtain the laser positioning approach distance value of the construction machinery at the corresponding voltage level; based on the correction value of the impact of the live risk safety distance at different voltage levels, the safety distance judgment is performed on the laser positioning approach distance value of the construction machinery at the corresponding voltage level, and when the laser positioning approach distance value is greater than the corresponding correction value of the impact of the live risk safety distance, the approach distance laser positioning processing is continued; when the laser positioning approach distance value is less than or equal to the corresponding correction value of the impact of the live risk safety distance, the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the corresponding construction machinery in the working area around the construction power distribution device, and a construction machinery safety distance proximity alarm signal is generated; Step S44: uploading the generated construction personnel intrusion proximity alarm signal or construction machinery safety distance proximity alarm signal to the LED display screen, and using the LED display screen to perform construction proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal to obtain construction power distribution device proximity alarm information; Step S45: Upload the near-power alarm information of the construction power distribution device to the construction site early warning platform to respond to the near-power alarm notification, generate a notification SMS for the near-power alarm management personnel of the construction site, and execute the corresponding near-power alarm notification work of the construction power distribution device site.

7. The method for near-power alarm for construction of power distribution equipment according to claim 6, characterized in that: Step S41 includes the following steps: The laser radar is used to comprehensively identify and scan the working area around the construction power distribution device to obtain a three-dimensional point cloud data set of the area around the construction power distribution device; Performing spatial object layering processing on the three-dimensional point cloud data set of the area around the construction power distribution device to obtain different spatial object layering models in the area around the construction power distribution device; Performing hierarchical object behavior feature analysis on different spatial object hierarchical models in the area around the construction power distribution device, and obtaining object behavior feature data of different spatial object hierarchies in the area around the construction power distribution device; Based on the object behavior feature data of different spatial object levels in the area around the construction power distribution device, approaching object recognition analysis is performed on the working area around the construction power distribution device to obtain the approaching object recognition results around the construction power distribution device, where the approaching object recognition results around the construction power distribution device include the approaching of construction personnel and construction machinery.

8. A power proximity warning system for construction of power distribution equipment, characterized in that: Used to execute the power proximity alarm method for construction of power distribution equipment according to claim 1, the power proximity alarm system for construction of power distribution equipment comprises: The equipment connection configuration module around the construction power distribution device is used to install a beam grating, a laser radar, an audible and visual alarm and an LED display screen in the working area around the construction power distribution device, wherein the beam grating and the laser radar are electrically connected to the audible and visual alarm, and the audible and visual alarm is electrically connected to the LED display screen, and a number of weak voltage sensors are integrated inside the laser radar to construct a weak voltage sensor array; The construction machinery operation turning radius monitoring module is used to install a wireless positioning sensor and an angle sensor on the construction machinery operation end, and use the wireless positioning sensor and the angle sensor to locate the real-time operation process of the construction machinery operation end and monitor the operation inclination in real time, so as to obtain the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation; based on the real-time position positioning data of the construction machinery operation and the real-time inclination data of the construction machinery operation, the construction machinery operation end is measured and verified for the construction machinery turning radius, so as to obtain the turning radius of the construction machinery operation process; The construction power distribution device site safety distance measurement module is used to use a weak voltage sensor array to monitor the voltage level of the charged body in the construction power distribution device in real time, and obtain the voltage level of the charged body around the construction power distribution device; based on the voltage level of the charged body around the construction power distribution device, the initial measurement of the charged risk safety distance between the laser radar and the charged body is performed to obtain the initial control value of the charged risk safety distance at different voltage levels; based on the turning radius of the construction machinery operation process, the initial control value of the charged risk safety distance at different voltage levels is corrected for the safety distance impact, so as to obtain the charged risk safety distance impact correction value at different voltage levels; The power distribution device site proximity alarm notification module is used to perform approaching object recognition and analysis on the working area around the construction distribution device through a laser radar, and obtain the approaching object recognition results around the construction distribution device, wherein the approaching object recognition results around the construction distribution device include the approach of construction personnel and the approach of construction machinery; if it is the approach of construction personnel, the reflected grating is triggered and the sound and light alarm is used to respond to the personnel intrusion proximity alarm of the working area around the construction distribution device, and a construction personnel intrusion proximity alarm signal is generated; if it is the approach of construction machinery, the laser radar is triggered to judge the safety distance based on the correction value of the live risk safety distance impact under different voltage levels, and the sound and light alarm is used to respond to the mechanical safety distance proximity alarm of the working area around the construction distribution device, and a construction machinery safety distance proximity alarm signal is generated; the LED display screen is used to perform construction personnel intrusion proximity alarm display processing on the construction personnel intrusion proximity alarm signal or the construction machinery safety distance proximity alarm signal, and the construction distribution device proximity alarm information is obtained, and uploaded to the construction site early warning platform to perform the corresponding construction distribution device site proximity alarm notification work.

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