CN114821489A - Real-time positioning-based safety control method and system for operation on existing railway line - Google Patents
Real-time positioning-based safety control method and system for operation on existing railway line Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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Abstract
The invention discloses a real-time positioning-based safety control method and system for operation on an existing railway line. Acquiring real-time position information of an on-line operator and an operating machine of an existing operating railway; an online map form is adopted, and an online operation safety control platform is built; releasing an on-line operation plan and defining an operation space range by using the on-line operation safety control platform; and monitoring the working states of the operating personnel and the operating machines according to the acquired real-time position information, checking according to the issued online operating plan, recording the operation process of the rules according to the checking result, and performing early warning treatment on the illegal operation process. The real-time monitoring of the operation on the railway line is realized, and the problems of poor control, poor real-time performance and insufficient operation record of the traditional operation mode on the railway line are solved.
Description
Technical Field
The invention relates to the technical field of railway operation management, in particular to a method and a system for safety control of operation on an existing railway line based on real-time positioning.
Background
The operation mileage of railways in China reaches 15 kilometers, wherein the mileage of high-speed rails exceeds 4 kilometers, the workload of on-line operation of existing railway line construction, maintenance, operation monitoring and the like is increased day by day, the on-line operation protection is mainly manual protection at present, namely, a safety worker is adopted to follow the on-line on-site operation to perform supervision, the problems of not strict safety measures and not-in-place on-site protection exist, and safety accidents caused by overtime, out-of-range and illegal border-crossing operation occur every year to cause serious safety accidents.
The traditional civil air defense method is influenced by complex field environment, long and narrow operation range, weather, driving factors and the like, can not accurately grasp operation range information in real time, can not monitor illegal operation in real time, can only confirm the completion condition through a field telephone, and has great management and control defects. With the development of Beidou (BDS) positioning in recent years, under the support of a foundation enhancement system, the technology such as RTK-PPP (real-time kinematic-Point protocol) is utilized to realize sub-meter-level high-precision real-time positioning, and data support is provided for real-time positioning of online operators and equipment.
Disclosure of Invention
Therefore, an object of the present invention is to provide a method and a system for safety control of an existing online operation of a railway based on real-time positioning, which can solve the problems of inadequate control, poor real-time performance, and insufficient operation records of the conventional online operation of the railway.
In order to achieve the purpose, the invention discloses a real-time positioning-based safety control method for operation on an existing railway line, which comprises the following steps of:
s1, acquiring real-time position information of on-line operators and operation tools of the existing operation railway;
s2, building a safety control platform for the operation on the railway line in an online map form; releasing an on-line operation plan and defining an operation space range by using the on-line operation safety control platform;
and S3, monitoring the working states of the operator and the working tool according to the acquired real-time position information, checking according to the issued on-line working plan, recording the qualified working process according to the checking result, and early warning the illegal working process.
Further preferably, in S2, the building of the safety control platform for operation on the railway line includes the following steps:
s201, accessing a public map service in an online map form, and constructing a B/S mode thematic geographic information system which is visually displayed in real time;
s202, according to the railway line design data, making a line mileage mark for map mode mileage positioning, and adding the essential information: railway line position, bridge pier and mileage; and overlaying the information to a B/S mode thematic geographic information system which is displayed in a real-time visualization manner.
And S203, making and releasing an on-line operation plan and defining an operation space range according to the requirements of three levels of a railway section bureau, a station section and a workshop.
Further preferably, in S3, the monitoring the working states of the operator and the work implement according to the acquired real-time position information includes:
s301, decoding the real-time position information of the operator and the operating tool;
s302, extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database;
s303, monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range;
and S304, visually displaying the real-time positions of the operator and the working tool according to the extracted data.
Further preferably, when the illegal operation process is subjected to early warning processing, the illegal operation condition and the early warning processing process at least include the following three aspects:
1) for the illegal border crossing operation of the personnel in the operation, calculating the over-range and over-mileage operation of the monitoring and positioning terminal in real time for recording, and calculating border crossing time, maximum border crossing distance and border crossing times;
2) for overtime work, monitoring the advance of the positioning terminal and the time period of the overtime work, and carrying out online and offline through time sequence and space analysis;
3) and for monitoring the invasion of external operators and equipment, the invasion of other operators and equipment is monitored in real time.
Preferably, the monitoring of the working states of the operator and the working machine further comprises updating the monitoring results of the connection state, the battery capacity and the signal state of the positioning devices of the on-line operator and the working machine on the on-line operation safety control platform.
Further preferably, the method further comprises the step of performing real-time spatial relationship operation between the positioning terminal spatial position sampling sequence and the operation range according to the following formula through real-time spatial relationship analysis:
wherein:
in order to calculate the working range of the work,
and
the starting and stopping mileage is represented by the number,
the line position is shown, and D represents the transverse operation range.
Further preferably, the method further comprises the step of S4, sending the information of the personnel or the working tools of the illegal operation to a field operation responsible person and a management and control department according to the early warning information, checking the condition of the illegal operation, and finishing the alarm cancellation in the terminal or the platform after the checking is finished; and after the on-line operation is finished, the staff and the machines are checked off the line, and the operation record is filled.
The invention also provides a real-time positioning-based safety control system for the operation on the existing railway line, which comprises: the system comprises a positioning device, a railway on-line operation safety control platform and a monitoring module;
the positioning device is used for acquiring real-time position information of on-line operators and operation machines of the existing operation railway;
the railway on-line operation safety control platform displays the special geographic information of the railway line in an on-line map form, and simultaneously arranges an operation plan on a wiring and defines an operation space range;
and the monitoring module is used for monitoring the working states of the operating personnel and the operating machines according to the acquired real-time position information, checking according to the issued on-line operating plan, recording the qualified operating process according to the checking result, and early warning and processing the illegal operating process.
Further preferably, the system further comprises a configuration module, wherein the configuration module is used for configuring basic information for the operator and the working tool and completing the binding of the operation task with the operator and the working tool before operation.
Further preferably, the monitoring module, when monitoring the working state of the operator and the working implement, includes: decoding the real-time position information of the operator and the work implement; extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database; monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range; and visually displaying the real-time positions of the operating personnel and the operating machine tool according to the extracted data.
Compared with the prior art, the safety control method and the system for the operation on the existing railway line based on real-time positioning at least have the following advantages:
1. the online operation safety control platform is adopted to monitor the positioning information of the personnel or the operation machines which are acquired in real time, and the problems of insufficient control, poor real-time performance and insufficient operation records of the traditional online operation mode are solved.
Drawings
FIG. 1 is a flow chart of an implementation of the safety control method for operation on an existing railway line based on real-time positioning according to the present invention;
FIG. 2 is a basic map service overlay railway element display effect diagram;
FIG. 3 is a diagram of a positioning terminal state monitoring front end display;
FIG. 4 is a schematic view of automatically defining an operating range based on an initial route mileage;
FIG. 5 is a front end visualization effect diagram of a positioning track and a real-time sampling position;
fig. 6 is a diagram showing a route work inquiry list.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in fig. 1, an embodiment of an aspect of the present invention provides a real-time positioning-based safety control method for an operation on an existing railway line, including the following steps:
s1, acquiring real-time position information of on-line operators and operation tools of the existing operation railway;
s2, building a safety control platform for the operation on the railway line in an online map form; releasing an on-line operation plan and defining an operation space range by using the on-line operation safety control platform;
and S3, monitoring the working states of the operator and the working tool according to the acquired real-time position information, checking according to the issued on-line working plan, recording the qualified working process according to the checking result, and early warning the illegal working process.
In S1, the workshop of the railway department is taken as a basic unit, positioning terminals are equipped for the operators and machines on the existing operating railway line, and corresponding parameter setting is completed. Wherein personnel are equipped with light wearable equipment terminals such as electron bracelet, worker's tablet, safety helmet that possess the real-time locate function of GNSS, smart mobile phone that satisfy positioning accuracy, for medium and large-scale machines and tools equipment configuration GNSS receiver. The terminal preferably meets the parameter requirements that the positioning sampling frequency is not lower than 1 min/time and the positioning precision is not lower than 1m, so that the real-time position sampling of the on-line operators and machines is realized. The operation plan that the safety management and control front end information-based platform mobile terminal realized making by the on-the-spot person of charge on the railway line before the operation binds with the location terminal of operation personnel and operation machines, and specifically accessible two kinds of modes are realized: firstly, binding with an existing operation plan is realized through two-dimensional codes on terminals such as a bracelet, a work card, a safety helmet, a GNSS receiver and the like positioned by scanning personnel and machines; and secondly, after the operation plan is selected through the mobile terminal, selecting a designated terminal from the existing positioning terminals according to the terminal sequence to finish the binding of the operation plan and the used positioning terminals.
Further preferably, in S2, the building of the safety management and control platform for operation on the railway line includes the following steps:
s201, accessing a public map service in an online map form, and constructing a B/S mode thematic geographic information system which is visually displayed in real time; specifically, the access of public map services (satellite images, electronic maps and notes) is realized in an online map form by utilizing main WEBGIS frames such as OpenLayers, Leaflet, Cesium and the like, and a B/S mode special geographic information system for visually displaying the positioning track of the working personnel machine tool on the railway line in real time is built and serves as a platform for displaying the positioning terminal track, the real-time position information and the working range information of the working personnel machine tool on the railway line.
S202, according to the railway line design data, making a line mileage mark for map mode mileage positioning, and adding the essential information: railway line position, bridge pier and mileage; and overlaying the information to a B/S mode thematic geographic information system which is displayed in a real-time visualization manner.
And S203, making and releasing an on-line operation plan and defining an operation space range according to the requirements of three levels of a railway section bureau, a station section and a workshop.
The method comprises the steps of collecting design data files (PF data and bridge pier odometer) of an operation line administered by a railway administration work department, manufacturing a line mileage mark, recording results of kilometer marks and hectometer marks into a database, realizing the two-way association of mileage and spatial positions, manufacturing thematic maps of thematic element information such as railway line positions, mileage marks, buffer areas, bridge pier marks and the like, publishing the thematic maps in a data service form, overlaying the thematic geographic information systems to be visually displayed, and switching to map positions with any mileage in map mileage navigation by the constructed visual map and railway element effect as shown in figure 2.
And (4) realizing the information development of the business work content of the online operation safety control according to the contents of an online operation plan, a positioning terminal, a workshop, an operator, early warning information and the like in three levels of a road bureau, a station section and the workshop, and inputting the information of the positioning terminal and the information of the circuit, the operator, the workshop and the like in S1 into a system.
Further preferably, in S3, the monitoring the working states of the operator and the work implement according to the acquired real-time position information includes:
s301, decoding the real-time position information of the operator and the working tool; the communication information returned by the positioning terminal is subjected to data decoding according to an agreed data protocol at the server side through a TCP or UDP communication protocol, and is converted into plaintext information, the currently adopted data protocol is mostly 'technical specification of road transport vehicle satellite positioning system Beidou compatible vehicle-mounted terminal communication protocol' (traffic department 808 protocol), and communication connection is maintained according to protocol requirements.
S302, extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database.
And S303, monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range.
And S304, visually displaying the real-time positions of the operator and the working tool according to the extracted data.
Preferably, the monitoring of the working states of the operator and the working machine tool further comprises updating the connection state, the battery capacity and the signal state monitoring result of the positioning devices of the operator and the working machine tool on the railway line on the operation safety control platform.
In the existing ordinary speed and high-speed railway operation, a protective person and an operator wear the selected terminal together, large-scale operation machines and personnel carry the machines and tools to keep a starting state, and background real-time position acquisition, analysis and warehousing are realized. The multi-terminal real-time positioning track and the nearest sampling position are refreshed in real time, the operation activity track and the real-time sampling position of the positioning terminal are visually displayed in a front-end map, and the real-time position of the positioning terminal and the spatial position relation between the positioning terminal and the railway line position and the operation range are symbolically represented. The normal and border-crossing tracks and the real-time positioning points are distinguished by adopting a differentiated symbol and animation rendering mode, border-crossing equipment and tracks are emphasized and emphatically warned, and the equipment positioning tracks and the real-time positions are visualized to render effects and details after amplification, as shown in fig. 5.
Further preferably, when the illegal operation process is subjected to early warning processing, the illegal operation condition and the early warning processing process at least include the following three aspects:
1) for the illegal border crossing operation of the personnel in the operation, calculating the over-range and over-mileage operation of the monitoring and positioning terminal in real time for recording, and calculating border crossing time, maximum border crossing distance and border crossing times;
2) for overtime work, monitoring the advance of the positioning terminal and the time period of the overtime work, and carrying out online and offline through time sequence and space analysis;
3) for the intrusion monitoring of external operators and equipment, the intrusion of other operators and equipment is monitored in real time.
As shown in equation (2), the real-time sampling position of a positioning terminal at any moment
And the sampling time
Associating the operation range plane with the sampling terminal
And railway mileage line position
The current positioning terminal real-time boundary crossing is solved through the analysis of space and time between the positioning terminals
Timeout, timeout
Distance of crossing boundary
Mileage information of railway where the railway is
And (4) information. In particular, by obtaining successive sample point coordinates
And correspondingTime stamp information
Calculating to obtain each sampling point and working range by means of space topology analysis
Whether the equipment is out of range or not is judged
Judging and calculating the time length of the overtime work according to the time stamp information of the sampling point and the start time specified by the work issued in S303
. Calculating the sampling-to-working range by means of continuous sampling point information of single equipment
Distance of crossing the boundary
And obtaining accurate mileage information of each sampling point through the conversion of the relation between the railway mileage and the space coordinates
。
When the on-line operation task is released, the operation management personnel of the work department report the operation information in the front-end information platform of the on-line operation safety control of the railway, wherein the operation information comprises the operation name, the line, the operation starting time and starting and stopping mileage, and the quantity information of the operation personnel and the machines.
According to the line where the operation is located and the initial mileage, the accurate line section is confirmed, and the operation is obtained through the automatic calculation of the line data and the line form (bridge, tunnel, roadbed) through the buffer areaThe accurate space range of the range is used as the space reference basis for the subsequent calculation of the terminal positioning electronic fence, as shown in the formula (1), the filled operation information and the line mileage information calculated on the map are used for calculating the automatic calculation operation range through the buffer area
Wherein
And
the starting and stopping mileage is represented by the number,
showing the line position, D the transverse operation range (taking the width of the roadbed and the bridge), and passing through
And
determining the accuracy
The line position trend and the interval range, the transverse width is determined through the accurate operation range, and the calculated operation range is obtained through the analysis of the buffer area. Calculated work scope
The front-end information platform can be adjusted manually by operating the safety control on the railway line.
The automatic calculation of the operating range from the input line starting mileage is shown in the blue dashed range box of fig. 4. The operation safety control front-end information platform on the railway line carries out map visual display on the operation range, and the actual range obtained by automatic operation can be manually adjusted in a vector editing mode aiming at the ranges of line turnouts, stations and the like.
After the operation is finished, the number of the personnel and the operation machines is checked on site, the checking is carried out on the number reported by the operation plan, the working state of the positioning terminal is checked, the site operation personnel and machines are photographed and uploaded to an operation safety control front-end information platform on the railway line, and electronic timestamps are stored.
The method comprises the steps that statistics of multi-line multi-operation real-time conditions and illegal operation behaviors are monitored in real time through an operation large screen in an indoor operation control room, the real-time operation conditions and early warning information of a plurality of lines are shown in figure 6, the operation information conditions of all lines are inquired in real time in a visual monitoring large screen, and the operation can be quickly switched to designated operation; further preferably, the method further comprises the step of S4, sending the information of the personnel or the working tools of the illegal operation to a field operation responsible person and a management and control department according to the early warning information, checking the condition of the illegal operation, and finishing the alarm cancellation in the terminal or the platform after the checking is finished; and after the on-line operation is finished, the staff and the machines are checked off the line, and the operation record is filled.
After the operation is finished and the production line is off line, the completion situation of the operation content is filled, personnel and machine tools are checked again, photographed and uploaded, the checking is consistent with the checking content and quantity before the production line is on line, and the checking and on-site confirmation records are reserved. And operation statistics, early warning records and disposal records are reserved, backtracking of positioning tracks of operating personnel and equipment and statistical analysis of the early warning records are realized, and closed loop of the operation completion process is realized.
The invention also provides a real-time positioning-based safety control system for the operation on the existing railway line, which comprises: the system comprises a positioning device, a railway on-line operation safety control platform and a monitoring module;
the positioning device is used for acquiring real-time position information of on-line operators and operation machines of the existing operation railway;
the railway on-line operation safety control platform displays the special geographic information of the railway line in an on-line map form, and simultaneously arranges an operation plan on a wiring and defines an operation space range;
and the monitoring module is used for monitoring the working states of the operating personnel and the operating machines according to the acquired real-time position information, checking according to the issued on-line operating plan, recording the qualified operating process according to the checking result, and early warning and processing the illegal operating process.
Further preferably, the system further comprises a configuration module, wherein the configuration module is used for configuring basic information for the operator and the working tool and completing the binding of the operation task with the operator and the working tool before operation.
Further preferably, the monitoring module, when monitoring the working state of the operator and the working implement, includes: decoding the real-time position information of the operator and the work implement; extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database; monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range; and visually displaying the real-time positions of the operating personnel and the operating machine tool according to the extracted data.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A safety control method for operation on an existing railway line based on real-time positioning is characterized by comprising the following steps:
s1, acquiring real-time position information of on-line operators and operation tools of the existing operation railway;
s2, building a safety control platform for the operation on the railway line in an online map form; releasing an on-line operation plan and defining an operation space range by using the on-line operation safety control platform;
and S3, monitoring the working states of the operator and the working tool according to the acquired real-time position information, checking according to the issued on-line working plan, recording the qualified working process according to the checking result, and early warning the illegal working process.
2. The method for safety control of operation on an existing railway line based on real-time positioning according to claim 1, wherein in S2, the step of building a platform for safety control of operation on a railway line comprises the following steps:
s201, accessing a public map service in an online map form, and constructing a B/S mode thematic geographic information system which is visually displayed in real time;
s202, according to the railway line design data, making a line mileage mark for map mode mileage positioning, and adding the essential information: railway line position, bridge pier and mileage; superposing the information to a B/S mode thematic geographic information system which is displayed in a real-time visualization manner;
and S203, making and releasing an on-line operation plan and defining an operation space range according to the requirements of three levels of a railway section bureau, a station section and a workshop.
3. The safety control method for operation on an existing railway line based on real-time positioning as claimed in claim 1, wherein the monitoring of the working states of the operator and the work implement based on the acquired real-time position information at S3 comprises the steps of:
s301, decoding the real-time position information of the operator and the working tool;
s302, extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database;
s303, monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range;
and S304, visually displaying the real-time positions of the operator and the working tool according to the extracted data.
4. The real-time positioning-based safety control method for operation on the existing railway line, according to claim 1, is characterized in that when the illegal operation process is early-warned, the illegal operation condition and the early-warning processing process at least comprise the following three aspects:
1) for the illegal border crossing operation of the personnel in the operation, calculating the over-range and over-mileage operation of the monitoring and positioning terminal in real time for recording, and calculating border crossing time, maximum border crossing distance and border crossing times;
2) for overtime work, monitoring the advance of the positioning terminal and the time period of the overtime work, and carrying out online and offline through time sequence and space analysis;
3) for the intrusion monitoring of external operators and equipment, the intrusion of other operators and equipment is monitored in real time.
5. The real-time positioning-based safety control method for the operation on the existing railway line according to claim 3, wherein the monitoring of the working states of the operator and the operation tool further comprises updating the monitoring results of the connection state, the battery capacity and the signal state of the positioning devices of the operator and the operation tool on the railway line on the operation safety control platform.
6. The method for managing and controlling the safety of the operation on the existing railway line based on the real-time positioning as claimed in claim 1, further comprising the step of performing the spatial relationship operation between the positioning terminal spatial position sampling sequence and the operation range in real time according to the following formula through the real-time spatial relationship analysis:
wherein:
in order to calculate the working range of the work,
and
the starting and stopping mileage is represented by the number,
the line position is shown, and D represents the transverse operation range.
7. The existing railway online operation safety control method based on real-time positioning according to claim 1, further comprising S4, sending information of personnel or tools of illegal operation to a field operation responsible person and a control department according to the early warning information, checking the condition of illegal operation, and completing alarm cancellation in a terminal or a platform after the checking is finished; and after the on-line operation is finished, the staff and the machines are checked off the line, and the operation record is filled.
8. The utility model provides an operation safety control system on existing railway line based on real-time location which characterized in that includes: the system comprises a positioning device, a railway on-line operation safety control platform and a monitoring module;
the positioning device is used for acquiring real-time position information of on-line operators and operation machines of the existing operation railway;
the railway on-line operation safety control platform displays the special geographic information of the railway line in an on-line map form, and simultaneously arranges an operation plan on a wiring and defines an operation space range;
and the monitoring module is used for monitoring the working states of the operating personnel and the operating machines according to the acquired real-time position information, checking according to the published online operating plan, recording the operation process of the rules according to the checking result, and early warning and processing the illegal operation process.
9. The real-time positioning based safety management and control system for on-line operation of the existing railway line as claimed in claim 8, further comprising a configuration module, wherein the configuration module is used for configuring basic information for the operator and the operation tool, and completing the binding of the operation task with the operator and the operation tool before the operation.
10. The real-time positioning based safety management and control system for operation on the existing railway line according to claim 8, wherein the monitoring module comprises when monitoring the working state of the operator and the working machine: decoding the real-time position information of the operator and the work implement; extracting data from the decoded real-time position information, wherein the extracted data comprises equipment coding information and longitude and latitude coordinates of equipment real-time positioning, and storing the extracted data into a database; monitoring the extracted data in real time according to the on-line operation plan and the defined operation space range; and visually displaying the real-time positions of the operating personnel and the operating machine tool according to the extracted data.
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| CN115861364A (en) * | 2022-09-07 | 2023-03-28 | 国网江苏省电力有限公司太仓市供电分公司 | AI identification-based field personnel management and control method and system |
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| CN115861364B (en) * | 2022-09-07 | 2023-11-07 | 国网江苏省电力有限公司太仓市供电分公司 | Site personnel management and control method and system based on AI identification |
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