CN113225683A - Power plant operation safety automatic management and control system and management and control method based on personnel positioning - Google Patents
Power plant operation safety automatic management and control system and management and control method based on personnel positioning Download PDFInfo
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Abstract
The invention provides a personnel positioning-based power plant operation safety automatic control system which comprises a position calculation server, wherein the position calculation server is connected with a three-dimensional safety control platform, a synchronous base station, a communication base station and a positioning base station through Ethernet communication, the communication base station is connected with the positioning base station through UWB signals, the positioning base station is connected with a positioning tag through UWB signals, the positioning tag is connected with the communication base station through ZigBee signals, and the positioning tags are connected through UWB signals. The invention realizes the real-time on-line monitoring and supervision function of unsafe behaviors in the operation process of the power plant and greatly improves the field safety in the operation process of the power plant.
Description
Technical Field
The invention relates to the field of safety control, in particular to a power plant operation safety automatic control system and a control method based on personnel positioning.
Background
At present, the following problems exist in the field operation process of a power plant: 1. the operation area of the operator is different from the billing area, so that misoperation is caused; 2. when an operator mistakenly enters an unauthorized dangerous area, the safety distance between the operator and the live equipment is insufficient, so that personal electric shock accidents are caused; 3. the working site is responsible for the departure of the personnel for supervision and monitoring, and the operation risk is increased; aiming at the problems, the prevention is mainly carried out in the current stage by manual on-site supervision and patrol modes and remote video monitoring. The remote video monitoring is limited by video monitoring stationing conditions based on a video monitoring safety control method, and monitoring can have a certain blind area; the manual method can cause the problems of inadequate supervision and inspection, non-real time and difficult supervision due to negligence of field personnel, so that the unsafe behaviors can not be effectively supervised and supervised. Therefore, it is necessary to develop an intelligent management and control system for field operation of a power plant as an auxiliary tool for manual supervision and supervision to realize the real-time online supervision and supervision function of the unsafe behaviors.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a power plant operation safety automatic control system and a control method based on personnel positioning so as to realize the real-time online supervision and supervision function of unsafe behaviors in the power plant operation process and improve the field safety in the power plant operation process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an automatic management and control system of power plant operation safety based on personnel's location, includes position calculation server, three-dimensional safety management and control platform the position calculation server is connected with three-dimensional safety management and control platform, synchronous base station, communication base station and location basic station through the ethernet communication, communication base station with through UWB signal connection between the location basic station, the location basic station has the location label through UWB signal connection, just the location label pass through the zigBee signal with communication base station connects, through UWB signal connection between the location label.
In a preferred embodiment of the invention, the three-dimensional safety control platform is used for storing, processing, calling and outputting modeling data of building roads, equipment pipeline facilities and surrounding entities of a power plant, the synchronization base station is used for time picosecond-level synchronization between the positioning base stations, the communication base station is used for performing information interaction with the positioning tags, the positioning base stations are used for acquiring time information of receiving and transmitting pulse signals and uploading the information to the position settlement server, and the position settlement server is used for resolving the pulse information in real time, acquiring spatial position information, converting the spatial position information into three-dimensional coordinates and mapping the three-dimensional coordinates to a constructed power plant three-dimensional model scene.
In a preferred embodiment of the present invention, the content of information delivery between the communication base station and the positioning tag includes positioning tag configuration information, power information, help information, and alarm information.
In a preferred embodiment of the present invention, the three-dimensional safety management and control platform acquires three-dimensional data of the power plant by using an auxiliary means of three-dimensional laser scanning or camera image shooting, and performs three-dimensional modeling on facilities and equipment of the power plant to construct a three-dimensional model database.
In a preferred embodiment of the invention, the positioning tag is arranged on a worker at the service site or on a safety helmet.
A power plant operation safety automatic management and control method based on personnel positioning comprises the following steps:
s100, system configuration: automatically generating work task execution control information according to the work ticket information, wherein the control information comprises: the task management method comprises the steps of defining a working area of the electronic security fence, wherein the task starting time T1 and the task ending time T2 are used for monitoring personnel information and operation executive personnel information related to a task, the number of monitoring personnel is 1, the number n of operating personnel is more than or equal to 1, the monitoring distance A between the monitoring personnel and the operation executive personnel is monitored, positioning tags are respectively arranged on the monitoring personnel and the operating personnel, and the positioning tags are bound with identity information of the monitoring personnel and the operating personnel;
s200, position calculation: calculating the position coordinates of the positioning tag, judging whether the positioning tag is in the working area of the electronic safety fence or not, if the position of the positioning tag is not in the working area of the electronic safety fence, further judging whether the positioning tag is in the task execution time at present, if the positioning tag is not in the task execution time, turning to the step S500, if the positioning tag is in the task execution time at present, triggering a wrong-going prompt, turning to the step S500, and if the position of the positioning tag is in the working area of the electronic safety fence, turning to the step S300;
s300, state monitoring: judging whether the positioning label is in the task execution time, if so, turning to S400, otherwise, triggering an evacuation alarm prompt, and turning to S500;
s400, state early warning: if the positioning tag is bound with a monitoring person, calculating the distance (a1, a2, a3, … and an) between the positioning tag and each operation executive worker in real time through the coordinate values of the positioning tag, turning to S500 when the distances (a1, a2, a3, … and an) are all less than or equal to a set value A, and triggering a monitoring-off alarm prompt when one value is greater than the set value A in the distances (a1, a2 and a3 … an), and turning to S500; if the positioning tag is bound with an operator, calculating the distance b1 between the operator and a monitoring person in real time through the coordinate value of the positioning tag, turning to S500 when the distance b1 is less than or equal to a set value A, triggering a monitoring-off alarm prompt when the distance b1 is greater than the set value A, and turning to S500;
s500, model display: and mapping the coordinate transformation to the three-dimensional model for displaying, and ending the process.
In a preferred embodiment of the present invention, in step S100, the work area of the electric safety fence is set according to the content of the work ticket and the safety distance of each voltage level of the peripheral equipment.
In a preferred embodiment of the present invention, in step S100, the electronic security fence generation includes the following steps:
s101, automatically acquiring work ticket information through the associated work ticket, and reading work place information, equipment information, time information and personnel information in the work ticket;
s102, acquiring spatial position information of the equipment at the working place according to the working place information, and defining a working area to generate an electronic safety fence according to the equipment position and the isolation requirement;
s103, judging whether the electronic security fence area meets the work ticket operation range or not, if not, correcting, and if so, calculating the three-dimensional coordinates in the electronic security fence.
In a preferred embodiment of the present invention, in step S200, the real-time calculation of the position of the positioning tag is implemented by a three-dimensional positioning algorithm for positioning the time difference of the base station in the cell based on the arrival resolution of the UWB signal.
In a preferred embodiment of the present invention, in step S300, in steps S200 to S400, the go-wrong alert, the evacuation alert, and the monitoring alert are at least one of an audible and visual alert, a vibration alert, and a short message alert.
Through the technical scheme, the invention has the following beneficial effects:
the invention constructs a three-dimensional model of a power plant and facilities based on a positioning label, a positioning base station and a position resolving server, realizes real-time operation monitoring, safety warning and operation position correctness real-time reminding of field operation personnel by calculating the position of the operation personnel in real time and mapping the position of the operation personnel to the three-dimensional model, realizes operation monitoring system execution real-time monitoring by calculating the distance information between the operation personnel and monitoring personnel in real time, and greatly improves the field safety in the operation process of the power plant.
Drawings
FIG. 1 is a schematic structural diagram of an automatic management and control system for power plant operation safety based on personnel positioning according to the present invention;
FIG. 2 is a schematic flow structure diagram of an automatic management and control method for power plant operation safety based on personnel positioning according to the present invention;
fig. 3 is an auxiliary map for calculating the position of a positioning tag in the automatic management and control method for the operation safety of a power plant based on personnel positioning.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
As shown in fig. 1, the power plant operation safety automatic management and control system based on personnel positioning of the invention is shown, and comprises a position calculation server, wherein the position calculation server of the three-dimensional safety management and control platform is connected with a three-dimensional safety management and control platform, a synchronous base station, a communication base station and a positioning base station through ethernet communication, the communication base station is connected with the positioning base station through a UWB signal, the positioning base station is connected with a positioning tag through a UWB signal, the positioning tag is connected with the communication base station through a ZigBee signal, and the positioning tags are connected through a UWB signal.
In this embodiment, the three-dimensional safety control platform is used for storing, processing and calling and outputting building roads, equipment pipeline facilities and surrounding entity modeling data of a power plant, the synchronous base station is used for synchronizing time picoseconds between the positioning base stations, the communication base station is used for interacting information with the positioning labels, the positioning base stations are used for acquiring time information of receiving and transmitting pulse signals and uploading the information to the position settlement server, and the position calculation server is used for calculating the pulse information in real time, acquiring space position information, and mapping the space position information to the three-dimensional safety control platform in a built power plant three-dimensional model scene after the space position information is converted into three-dimensional coordinates.
In this embodiment, the content of information delivery between the communication base station and the positioning tag includes positioning tag configuration information, electric quantity information, help seeking information, and alarm information.
In this embodiment, the three-dimensional safety control platform acquires three-dimensional data of the power plant by using a three-dimensional laser scanning or camera image shooting auxiliary means, and performs three-dimensional modeling on facilities and equipment of the power plant to construct a three-dimensional model database, thereby realizing the management and maintenance functions of the database.
In this embodiment, the positioning tag is arranged on a worker at the service site or on a safety helmet. In this embodiment, the positioning tag may adopt a portable design, and is configured to receive and transmit a pulse signal, and cooperate with the positioning base station to achieve positioning.
As shown in fig. 2, the invention further provides a personnel positioning-based automatic management and control method for the operation safety of the power plant, which comprises the following steps:
s100, system configuration: automatically generating work task execution control information according to the work ticket information, wherein the control information comprises: the task management method comprises the steps of defining a working area of the electronic security fence, wherein the task starting time T1 and the task ending time T2 are used for monitoring personnel information and operation executive personnel information related to a task, the number of monitoring personnel is 1, the number n of operating personnel is more than or equal to 1, the monitoring distance A between the monitoring personnel and the operation executive personnel is monitored, positioning tags are respectively arranged on the monitoring personnel and the operating personnel, and the positioning tags are bound with identity information of the monitoring personnel and the operating personnel; the identity information comprises information such as names, personnel types corresponding to job numbers, corresponding working areas and the like;
s200, position calculation: calculating the position coordinates of the positioning tag, judging whether the positioning tag is in the working area of the electronic safety fence or not, if the position of the positioning tag is not in the working area of the electronic safety fence, further judging whether the positioning tag is in the task execution time at present, if the positioning tag is not in the task execution time, turning to the step S500, if the positioning tag is in the task execution time at present, triggering a wrong-going prompt, turning to the step S500, and if the position of the positioning tag is in the working area of the electronic safety fence, turning to the step S300;
s300, state monitoring: judging whether the positioning label is in the task execution time, if so, turning to S400, otherwise, triggering an evacuation alarm prompt, and turning to S500;
s400, state early warning: if the positioning tag is bound with a monitoring person, calculating the distance (a1, a2, a3, … and an) between the positioning tag and each operation executive worker in real time through the coordinate values of the positioning tag, turning to S500 when the distances (a1, a2, a3, … and an) are all less than or equal to a set value A, and triggering a monitoring-off alarm prompt when one value is greater than the set value A in the distances (a1, a2 and a3 … an), and turning to S500; if the positioning tag is bound with an operator, calculating the distance b1 between the operator and a monitoring person in real time through the coordinate value of the positioning tag, turning to S500 when the distance b1 is less than or equal to a set value A, triggering a monitoring-off alarm prompt when the distance b1 is greater than the set value A, and turning to S500;
s500, model display: and mapping the coordinate transformation to the three-dimensional model for displaying, and ending the process.
In this embodiment, in step S100, the electric safety fence work area is set according to the work ticket content and the safety distance of each voltage level of the work peripheral equipment.
In this embodiment, in step S100, the electronic security fence generation includes the following steps:
s101, automatically acquiring work ticket information through the associated work ticket, and reading work place information, equipment information, time information and personnel information in the work ticket;
s102, acquiring spatial position information of the equipment at the working place according to the working place information, and defining a working area to generate an electronic safety fence according to the equipment position and the isolation requirement;
s103, judging whether the electronic security fence area meets the work ticket operation range or not, if not, correcting, and if so, calculating the three-dimensional coordinates in the electronic security fence.
In this embodiment, in step S200, calculating the position of the positioning tag in real time is implemented by calculating a positioning base station time difference three-dimensional positioning algorithm in a cell based on the arrival calculation of the UWB signal.
In the present embodiment, in step S300, in steps S200 to S400, the go-wrong alert, the evacuation alert, and the monitoring alert are at least one of an audible and visual alert, a vibration alert, and a short message alert.
Referring to fig. 1 to 3, the method for automatically controlling the operation safety of the power plant will be specifically described:
(1) specifically, in step S100, in the system configuration, control information for executing the work task is automatically generated according to the work ticket information, where the control information includes: the task management method comprises a defined work area of the electronic security fence, wherein the task start time T1 and the task end time T2 are used for monitoring personnel information and operation executive personnel information related to a task, the number of monitoring personnel is 1, the number n of operating personnel is not less than 1, the monitoring distance A between the monitoring personnel and the operation executive personnel is monitored, positioning tags are respectively arranged on the monitoring personnel and the operating personnel, and the positioning tags are bound with the identity information of the monitoring personnel and the operating personnel.
In the present embodiment, the work ticket is a written command for permitting work on the electrical equipment and system software, and is also a written basis for executing a safety-ensuring technical measure. The work ticket contains the contents of work ticket number, work responsible person, work class member, work place and work content, planned work time, work finishing time, power failure range, safety measure, work licensor, work ticket issuer, work ticket approver, and comment after power transmission. And work distribution is carried out according to the content of the work ticket, and initialization configuration of the system is carried out according to the content of the work ticket, so that the field safety in the power plant operation process is ensured.
(2) Specifically, in the step S200 and the position calculation, the position coordinates of the positioning tag are calculated, whether the positioning tag is in the work area of the electronic security fence is judged, if the position of the positioning tag is not in the work area of the electronic security fence, whether the positioning tag is in the task execution time at present is further judged, if the positioning tag is not in the task execution time, the step S500 is switched to, if the positioning tag is in the task execution time at present, a warning of a fault is triggered, the step S500 is switched to, and if the position of the positioning tag is in the work area of the electronic security fence, the step S300 is switched to.
In the embodiment, the position of the location tag is calculated according to the TDOA algorithm of UWB, and the specific calculation steps are as follows:
as shown in fig. 3, it is assumed that there are 4 positioning base stations, which are numbered 1, 2, 3, and 4, and are grouped in a combined manner, and the distance difference between two positioning base stations and a positioning tag is denoted as d12，d23，d34，d14，d12The distance difference between the positioning base station No. 1 and 2 and the positioning label is represented, and the rest is analogized. Four positioning base stations are positioned in three-dimensional space simultaneouslyHas the coordinate of (x)1，y1，z1)，(x2，y2，z2)，(x3，y3，z3)，(x4，y4，z4) The coordinates of the positioning tag to be measured are set to (x, y, z), and the following equation exists according to the distance difference:
within the coordinate system, the following equation exists for the distance difference between the positioning base station and the positioning tag:
where c is the propagation velocity of the UWB signal, t1，t2，t3，t4And respectively obtaining the coordinates (x, y, z) of the positioning label by jointly solving the time required for the four positioning base stations to receive the positioning label by the formula (1) and the formula (2). Because the positioning label is arranged on the body of the worker or on the safety helmet, the position of the positioning label is the position of the worker.
(3) Specifically, in step S300, in the state monitoring, it is determined whether the location tag is within the task execution time, if so, the process goes to step S400, and if not, an evacuation alarm prompt is triggered, and the process goes to step S500.
In the embodiment, the positioning tag is bound with the worker according to the content of the work ticket, whether the worker is in a task execution state or not can be judged according to the content of the work ticket carried by the positioning tag, the worker is not in the task execution state, the evacuation warning prompt is triggered so as to avoid damage to the worker due to misoperation, and when the worker is judged to be in the task execution state, the worker can execute corresponding safety operation in a work area and receive supervision of safety warning.
(4) Specifically, in the step S400, in the state warning, if the positioning tag binds to the monitoring person, the distance (a1, a2, a3, …, an) between the monitoring person and each operation executive person in the electronic fence area is calculated in real time by the coordinate value of the positioning tag, that is, the distance between the positioning tag and each positioning tag bound to the operation executive person in the electronic fence area is calculated, when any one of the distances (a1, a2, a3, …, an) is less than or equal to a set value a, the operation goes to S500, and when a value in the distances (a1, a2, a3 … an) is greater than the set value a, a monitoring departure warning is triggered, and the operation goes to S500; if the positioning tag is bound with an operator, calculating the distance b1 between the operator and a monitoring person in the electronic fence area in real time through the coordinate value of the positioning tag, namely calculating the distance between the positioning tag and the positioning tag bound with the monitoring person in the electronic fence area, turning to S500 when the distance b1 is smaller than or equal to a set value A, triggering a monitoring-off alarm prompt when the distance b1 is larger than the set value A, and turning to S500.
In the present embodiment, the state warning supervises the supervision distance between the monitoring person and the operating person. When the distance between the monitoring personnel and the operating personnel is detected to be smaller than the set value A, the monitoring personnel can effectively monitor the operating personnel and can carry out field operation; when the distance between the monitoring personnel and the operating personnel is detected to be larger than the set value A, the monitoring personnel cannot effectively monitor the operating personnel at the moment, and the monitoring-off warning reminding is triggered.
(5) Specifically, in step S500, in the model display, the coordinate conversion is mapped to the three-dimensional model for display, and the process is ended.
In the embodiment, the three-dimensional safety control platform has three-dimensional safety visualization and three-dimensional safety control functions, the operation condition of a plant area is displayed in a two-dimensional/three-dimensional model mode by using a digital twin technology, the operation condition comprises personnel distribution, field operation and operation conditions, information such as hidden dangers, violation of regulations and non-conformity items is visualized and is displayed on a three-dimensional map, the number of real-time people in each area, the number of unrelieved hidden dangers, the number of dangerous sources and the number of high-risk operations are displayed in the form of the three-dimensional digital map, and the number of the real-time people in each area, the number of the unrelieved hidden dangers, the number of the dangerous sources and the number of the high-risk operations are displayed. Meanwhile, the three-dimensional electronic map can also be used for directly entering each floor and monitoring the number of operators, danger sources, high-risk operations and hidden dangers of each floor. The three-dimensional safety control platform adopts three-dimensional laser scanning or camera image shooting auxiliary means to collect three-dimensional data of the power plant, carries out three-dimensional modeling on facilities and equipment of the power plant, constructs a three-dimensional model database and realizes the management and maintenance functions of the database. In the three-dimensional model database, the positioning tags and the corresponding field personnel can be visually displayed in the three-dimensional model, so that the visual supervision of the field operation of the power plant is realized, and the safety of the field operation of the power plant is greatly improved.
The real-time positions of the positioning labels can form motion tracks in the three-dimensional model constructed in the transformer substation and store the motion tracks, so that the function of tracing back afterwards is realized.
Compared with the prior art, the technical scheme of the invention at least comprises the following beneficial effects:
(1) the invention constructs a three-dimensional model of a power plant and facilities based on a positioning label, a positioning base station and a position resolving server, realizes real-time operation monitoring, safety warning and operation position correctness real-time reminding of field operation personnel by calculating the position of the operation personnel in real time and mapping the position of the operation personnel to the three-dimensional model, and realizes real-time monitoring of an operation monitoring system by calculating the distance information between the operation personnel and monitoring personnel in real time.
(2) Compared with the prior art, the synchronous base station and the communication base station are introduced, and the synchronous base station is responsible for picosecond-level synchronization between the base stations, so that the traditional positioning mode of ranging back and forth (at least 3 times) between the label and the base station is avoided, the label is only required to send a signal once, the base station does not need to reply, the signal can be directly solved through the receiving time difference between the base stations, the power consumption of the label is greatly reduced, and the endurance is improved; the wireless transmission times in the system are greatly reduced, the interference in the system is reduced, and the positioning precision is improved; the positioning time delay is greatly reduced, the alarm timeliness is improved, and the personnel safety is enhanced. By introducing the zigbee communication base station, the tag has a communication function, meanwhile, the tag is integrated with the liquid crystal screen, the system can issue the tag position information in real time, and meanwhile, the map display is carried out on the working area.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (10)
1. An automatic power plant operation safety control system based on personnel positioning comprises a position calculating server and is characterized in that,
the position resolving server is connected with a three-dimensional safety control platform, a synchronous base station, a communication base station and a positioning base station through Ethernet communication, the communication base station is connected with the positioning base station through UWB signals, the positioning base station is connected with positioning labels through UWB signals, the positioning labels are connected with the communication base station through ZigBee signals, and the positioning labels are connected through UWB signals.
2. The personnel location-based automatic power plant operation safety management and control system according to claim 1, wherein the three-dimensional safety management and control platform is used for storing, processing and calling and outputting modeling data of power plant house roads, equipment pipeline facilities and surrounding entities, the synchronization base station is used for time picosecond-level synchronization between the positioning base stations, the communication base station is used for performing information interaction with the positioning tags, the positioning base station is used for acquiring time information of receiving and transmitting pulse signals and uploading the information to the position settlement server, and the position settlement server is used for resolving pulse information in real time, acquiring spatial position information, converting the spatial position information into three-dimensional coordinates and then mapping the three-dimensional coordinates to a constructed power plant three-dimensional model scene.
3. The automatic management and control system for power plant operation safety based on personnel positioning as claimed in claim 2, wherein the content of information delivery between the communication base station and the positioning tag comprises positioning tag configuration information, electric quantity information, help seeking information and alarm information.
4. The automatic management and control system for power plant operation safety based on personnel positioning as claimed in claim 1, wherein the three-dimensional safety management and control platform adopts three-dimensional laser scanning or camera image shooting auxiliary means to collect three-dimensional data of the power plant, and carries out three-dimensional modeling on facilities and equipment of the power plant to construct a three-dimensional model database.
5. The personnel location based power plant operation safety automatic management and control system of claim 1, wherein the location tag is provided on a worker or a safety helmet at a service site.
6. A power plant operation safety automatic management and control method based on personnel positioning is characterized by comprising the following steps:
s100, system configuration: automatically generating work task execution control information according to the work ticket information, wherein the control information comprises: the task management method comprises the steps of defining a working area of the electronic security fence, wherein the task starting time T1 and the task ending time T2 are used for monitoring personnel information and operation executive personnel information related to a task, the number of monitoring personnel is 1, the number n of operating personnel is more than or equal to 1, the monitoring distance A between the monitoring personnel and the operation executive personnel is monitored, positioning tags are respectively arranged on the monitoring personnel and the operating personnel, and the positioning tags are bound with identity information of the monitoring personnel and the operating personnel;
s200, position calculation: calculating the position coordinates of the positioning tag, judging whether the positioning tag is in the working area of the electronic safety fence or not, if the position of the positioning tag is not in the working area of the electronic safety fence, further judging whether the positioning tag is in the task execution time at present, if the positioning tag is not in the task execution time, turning to the step S500, if the positioning tag is in the task execution time at present, triggering a wrong-going prompt, turning to the step S500, and if the position of the positioning tag is in the working area of the electronic safety fence, turning to the step S300;
s300, state monitoring: judging whether the positioning label is in the task execution time, if so, turning to S400, otherwise, triggering an evacuation alarm prompt, and turning to S500;
s400, state early warning: if the positioning tag is bound with a monitoring person, calculating the distance (a1, a2, a3, … and an) between the positioning tag and each operation executive worker in real time through the coordinate values of the positioning tag, switching to S500 when the distances (a1, a2, a3, … and an) are all less than or equal to a set value A, and triggering a monitoring-off alarm prompt when one value in the distances (a1, a2, a3, … and an) is greater than the set value A, and switching to S500; if the positioning tag is bound with an operator, calculating the distance b1 between the operator and a monitoring person in real time through the coordinate value of the positioning tag, turning to S500 when the distance b1 is less than or equal to a set value A, triggering a monitoring-off alarm prompt when the distance b1 is greater than the set value A, and turning to S500;
s500, model display: and mapping the coordinate transformation to the three-dimensional model for displaying, and ending the process.
7. The automatic management and control method for power plant operation safety based on personnel positioning as claimed in claim 6, characterized in that: in step S100, the electric safety fence work area is set according to the work ticket content and the safe distance of each voltage level of the work peripheral equipment.
8. The automatic management and control method for power plant operation safety based on personnel positioning as claimed in claim 6, characterized in that: in step S100, the electronic security fence generation includes the following steps:
s101, automatically acquiring work ticket information through the associated work ticket, and reading work place information, equipment information, time information and personnel information in the work ticket;
s102, acquiring spatial position information of the equipment at the working place according to the working place information, and defining a working area to generate an electronic safety fence according to the equipment position and the isolation requirement;
s103, judging whether the electronic security fence area meets the work ticket operation range or not, if not, correcting, and if so, calculating the three-dimensional coordinates in the electronic security fence.
9. The automatic management and control method for power plant operation safety based on personnel positioning as claimed in claim 6, characterized in that: in step S200, calculating the position of the positioning tag in real time is achieved by calculating a three-dimensional positioning algorithm based on the time difference between the UWB signal and the positioning base station in the arrival calculating cell.
10. The automatic management and control method for power plant operation safety based on personnel positioning as claimed in claim 6, characterized in that: in steps S200 to S400, the go-wrong alert, the evacuation alert, and the monitoring alert are at least one of an audible and visual alert, a vibration alert, and a short message alert.
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