CN112906965A - Rush-repair path planning method based on power map - Google Patents

Abstract

The invention discloses an emergency repair path planning method based on an electric power map, belonging to the technical field of emergency repair path planning based on the electric power map; the technical problem to be solved is as follows: the improvement of an emergency repair path planning method based on an electric power map is provided; the technical scheme for solving the technical problem is as follows: the method comprises the steps that an application server is installed to be in wireless connection with a handheld terminal and a vehicle-mounted terminal through a wireless network, and meanwhile the application server is connected with a database, so that the application server has the functions of calling emergency repair vehicle positioning information, fault positioning information, geographic database information, attribute database information and scheduling database information in real time; then controlling an application server to formulate a task plan for vehicle monitoring, sending task plan information to a handheld terminal and a vehicle-mounted terminal of rush-repair personnel through a wireless network, carrying out rush-repair path planning by the application server, and executing a path maintenance task by the rush-repair personnel by using the handheld terminal and the vehicle-mounted terminal; the invention is applied to the electric power rush-repair place.

Description

Rush-repair path planning method based on power map

Technical Field

The invention discloses an emergency repair path planning method based on an electric power map, and belongs to the technical field of emergency repair path planning based on the electric power map.

Background

The power industry is the foundation of national economy and is concerned with national economic life. In recent years, the scale of a power grid is continuously enlarged, the power demand is higher and higher, the requirement of a power customer on the power consumption quality is higher and higher, and a power company needs to provide high-quality power service for a user to ensure the normal power supply of the user; however, in the power supply process, power equipment and power cables exposed to the natural environment may fail at any time, and due to technical limitations and imperfect decisions, power failures cannot be timely eliminated in some existing power rush-repair scheduling methods.

Particularly, when severe power failure occurs in extreme weather, rush-repair personnel often need to go to the site to investigate the failure condition, return accident information and then contact a dispatching center to dispatch materials to the site; most of the existing power rush-repair dispatching systems are based on GSM (global system for mobile communication) short message services, when a power failure occurs, monitoring personnel transmit accident information to rush-repair personnel through voice communication, after the rush-repair personnel feed back the accident information, the dispatching systems are implemented by personal decisions of the working personnel, in the process, the GSM can not be used for positioning the power rush-repair vehicles, the requirement of the monitoring system for positioning the rush-repair vehicles in real time can not be met, the capacity of each short message is limited, only accident location information can be notified, path planning and material dispatching can not be carried out, and short message sending has certain time delay and uncertainty, and rush-repair progress can be delayed to a certain extent.

Based on the defects, in the season of multiple power failures, the delayed power rush repair can bring serious social and economic problems, so that the method for rapidly solving the power failures is the basis for providing high-quality power service, and the urgent need for improving the intelligent power rush repair dispatching system is provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to solve the technical problems that: the improvement of the emergency repair path planning method based on the power map is provided.

In order to solve the technical problems, the invention adopts the technical scheme that: an emergency repair path planning method based on an electric power map comprises the following steps:

the method comprises the following steps: the method comprises the steps that an application server is installed and set, wireless connection is conducted between the application server and a handheld terminal and a vehicle-mounted terminal through a wireless network, and meanwhile the application server is connected with a database, so that the application server has the function of calling emergency repair vehicle positioning information, fault positioning information, geographic database information, attribute database information and scheduling database information in real time;

step two: the method comprises the steps that an application server is controlled to make a task plan for vehicle monitoring, task plan information is sent to a handheld terminal and a vehicle-mounted terminal of emergency repair personnel through a wireless network, data interaction is conducted after the task information reaches an emergency repair personnel terminal, the application server receives position information, working state information and motion trail information of each emergency repair personnel and each emergency repair vehicle in real time, and after the information is received, the application server sends a scheduling instruction to a corresponding vehicle-mounted terminal;

step three: the application server carries out emergency repair path planning, and an independent geographic information base is established in the system, wherein the geographic information base comprises position information, state information and power customer information of a transformer substation;

when the emergency repair vehicle works, an accident site and the position of the emergency repair vehicle are marked in a geographic information base, and electric power accident information is acquired and obtained;

recording the carrying condition of first-aid repair materials of each vehicle through a scheduling database;

then, scheduling records are carried out, wherein the scheduling records specifically comprise emergency repair work order records, work tickets and operation ticket records, and the emergency repair work orders comprise fault records, emergency repair dispatching records, fault emergency repair records and return visit records;

step four: the emergency repair personnel use the handheld terminal and the vehicle-mounted terminal to execute a path maintenance task and complete the path maintenance task by matching all the emergency repair personnel with a dispatching specialist;

when a task is executed, accident data in an application database is read to obtain accurate position information of a monitoring area, meanwhile, an application server also receives power failure information and repair reporting information of a power consumer, the application server generates the accident information in real time and displays the accident information on a power point diagram, the application server generates scheduling decision information according to the collected fault data and state information of a breakdown van, emergency repair personnel schedule vehicles to go to an accident site according to emergency repair paths generated by scheduling decisions, after emergency repair is finished, a work order is reported, and the personnel return to the emergency repair quality.

The fourth step specifically comprises the following steps:

step 4.1: acquiring power failure information, namely acquiring accidents of each transformer substation by an application server in two modes, reading data in the application server by an emergency repair system, screening and sorting the data, deleting false alarm accidents, and notifying and supervising staff of the transformer substations to repair equipment; the other method is that the power failure event information of a common user is obtained, a worker marks the accident site on a map by a manual adding mode through an access telephone, and the detailed failure condition is filled according to the user description;

step 4.2: determining the priority of the fault, if the electric power emergency repair accident is a concurrent accident, multiple electric power faults occur at the same time, and under the condition that the emergency repair vehicle has priority, the vehicle is required to be dispatched to an accident site with higher priority according to the emergency degree of the accident;

step 4.3: positioning idle emergency repair vehicles, calling out and positioning emergency repair vehicles distributed in various places by using a scheduling database, inquiring the state of the emergency repair vehicles, and knowing whether the emergency repair vehicles are in an emergency repair state or not;

step 4.4: the application server simultaneously analyzes the road traffic network according to the position of a fault point and the information of the emergency maintenance vehicle, if a plurality of path points need to be passed through, an optimal path planning algorithm of multi-point materials and personnel scheduling is adopted to give auxiliary scheduling decisions of workers, and a special scheduling worker informs emergency maintenance personnel of accident information;

step 4.5: in the emergency repair process, emergency repair shifts need to be communicated with a foreground closely, an emergency repair scheme is formulated, for the conditions of insufficient emergency repair materials and insufficient emergency repair personnel, an application server dispatches corresponding personnel materials to an emergency repair place according to the requirements of the emergency repair shifts, and for the required materials, a system searches equipment information in each electric power warehouse and dispatches vehicles to convey emergency repair equipment;

step 4.6: recording each accident, wherein the filled information of the power line repair work order comprises accident information of emergency repair responsible personnel, belonging teams and groups, emergency repair tasks, safety measures, emergency repair time, emergency repair licensors and the like;

step 4.7: after the emergency repair is finished, the staff makes a return call to the power complaint user, and the time for recovering the normal state and the service quality of the emergency repair staff are recorded and used as examination targets.

Compared with the prior art, the invention has the beneficial effects that: the GIS is based on a geospatial database, scientifically manages and comprehensively analyzes geographic data with spatial connotations based on theories of system engineering and information science under the support of computer software and hardware to provide a technical system of information needed by management, decision and the like, and transfers and fuses data of a plurality of control modules in an application server.

Drawings

The invention is further described below with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of an emergency repair path planning system of an electric power map according to the present invention;

fig. 2 is a flowchart of steps of the emergency repair path planning method of the power map.

Detailed Description

As shown in fig. 1 and 2, the emergency repair path planning method is based on a vehicle monitoring and scheduling system, can determine the instantaneous state and position of a vehicle through a GPS, and sends the instantaneous state and position to a scheduling center through a wireless communication link, and the scheduling center sends a scheduling instruction to a vehicle-mounted unit; because the electric power accident is sudden, the dispatching center can use the vehicle monitoring and dispatching system to effectively and accurately acquire the position information of the electric power breakdown van in real time and dispatch the breakdown van to the accident center.

The invention analyzes the defects of the conventional emergency repair dispatching system, takes an electronic map as an information processing and displaying means, uses the API of the map for secondary development, adopts a GPS and a data acquisition system of a vehicle-mounted terminal, connects a rear-end database system with a geographic information system of the electronic map, stores and processes information data, and realizes the intelligent dispatching system of the electric power emergency repair vehicle by assisting a multi-point material dispatching algorithm. The invention simultaneously analyzes and designs each functional module in detail, and improves the algorithm for realizing front-end display and background scheduling by using the electronic map.

According to the power first-aid repair scheduling condition in a certain city in a certain year, after summer, power first-aid repair special members of up to 3500 people are available in all local power supply offices and are required to restore power supply in the first time after power failure occurs. Under the condition, the traditional GSM-based power emergency repair scheduling system cannot meet the requirements of multiple people, resource overall distribution and intelligent emergency repair scheduling at present. The electric power rush-repair dispatching system based on the electronic map can visually display rush-repair vehicles, and adopts an optimized shortest path algorithm to dispatch the rush-repair vehicles to an accident site by an optimal strategy.

The invention applies the power map path planning method to the power rush-repair dispatching system, can effectively improve the quality of power rush-repair, and when the method is realized, the invention carries out system investigation on the informatization of the rush-repair dispatching in the power industry, carries out detailed demand analysis on the system, carries out overall architecture design and planning on system software, applies the power map to the power rush-repair intelligent dispatching system, realizes the positioning of the rush-repair vehicle of the rush-repair dispatching system, intelligently obtains and detects faults, improves corresponding algorithms, and plans the vehicle dispatching path based on the shortest path planning algorithm of multi-point material and personnel dispatching.

The electronic map provided by the invention forms an electric map with a unified scheduling function through data acquisition and preprocessing, the electric map is installed on a PC or an intelligent terminal for rapid access and display, and people can plan a route for own trip only by taking a mobile phone. The electronic map can realize the layered display of map elements, realize the automatic measurement of the length, the angle, the area and the like on the map, and can carry out the drawing with any scale and in any range and the output of three-dimensional satellite pictures; the power-based map may be used to find the geographic location of various facilities.

The invention provides an intelligent dispatching system for power line repair, which consists of a vehicle-mounted end system, an intelligent terminal and a dispatching center monitoring system. The vehicle-mounted end is mainly used for positioning the position of the electric power breakdown van, the intelligent terminal is used for receiving information of the dispatching center, and the dispatching center monitoring system is used for checking accident information, dispatching the breakdown van to an accident site and the like. The vehicle-mounted terminal communicates through a GPRS wireless network scheduling center, and the scheduling center is connected with a geographic information database, reads geographic information, marks accident information and assists scheduling decisions.

Before the emergency repair path planning is carried out, the power emergency repair intelligent scheduling system needs to be set, belongs to the category of a vehicle monitoring system, has the functional requirements of a common vehicle monitoring system, has the functions of power accident management, scheduling management, material management and the like, and has the functions of recording the stroke of each scheduling, replaying historical scheduling, filling a power emergency repair work order and the like.

Firstly, a task plan for vehicle monitoring needs to be formulated, and the task plan specifically comprises the steps of receiving position information of a plurality of emergency repair vehicles, and a dispatching center can respectively call out state information of each vehicle and display the motion trail of the vehicle in real time; the method comprises the steps of checking an electronic map by using various scales, quickly displaying, zooming and inquiring emergency repair vehicles, remotely controlling and monitoring the vehicles, including forcibly sending back vehicle positions, sending notification information and the like, displaying scheduling instructions at a vehicle-mounted end, and counting information and running tracks of all vehicles.

In addition, since the power line repair scheduling is different from the general vehicle scheduling, some unique functional tasks need to be added, for example:

the geographic information marking management and emergency repair dispatching system front end needs to mark accident sites and emergency repair vehicle positions, and besides the geographic information using the power map, an independent geographic information base needs to be established in the system, wherein the independent geographic information base comprises position information and state information of a transformer substation, information of a power customer and the like.

The invention can obtain accident records from a data acquisition and monitoring control System (SCADA), but because the accident in the SCADA system has a false alarm phenomenon, the really occurred accident records are firstly screened out from a database, and in addition, for the areas which cannot be monitored by the electric power equipment, a worker receives the telephone accident report of an electric power user to obtain accident information.

The dispatching management of salvageed goods and materials, at the in-process of salvageing, the salvageed goods and materials that the breakdown van carried can consume in the task of salvageing, and the dispatch system need take notes the salvageed goods and materials condition of carrying of every car.

The management of the dispatching records has the requirement of accident dispatching records in a vehicle management system, the dispatching records comprise emergency repair work order records, work tickets, operation tickets and other records besides vehicle dispatching, and the emergency repair work orders comprise fault records, emergency repair dispatching records, fault emergency repair records and return visit records.

The emergency repair path planning system provided by the invention comprises two types of users, wherein one type is a scheduling specialist, the other type is an emergency repair worker for emergency repair work class, the two types of users have different requirements on the system, and the emergency repair worker generally only uses basic functions of the scheduling system, such as login of the existing user, registration of a new user, checking of a navigation route of the emergency repair vehicle, monitoring of real-time position information of the vehicle, checking of material equipment and the like; for the dispatching specialist, the super user needs to be set to manage the information of the general user, and besides the information checked by the general user, the dispatching specialist can also check the information of all vehicles and accompanying personnel, check a historical emergency repair work order, check a historical navigation route, and send a dispatching instruction to the emergency repair vehicle.

When the system architecture is designed, different requirements of a scheduling specialist and an emergency maintenance worker are distinguished, different authorities need to be set for different users, the system can only inquire information about self ID for the emergency maintenance worker, and vehicle configuration, personnel configuration and the like cannot be checked; for a special dispatcher, the special dispatcher needs to have the functions of sending commands to a dispatching vehicle, managing various data, checking system information, covering various requirements and the like.

The power map rush-repair path planning system comprises a vehicle-mounted end, an intelligent terminal and a dispatching center system, wherein the vehicle-mounted end, the intelligent terminal and the dispatching center system are communicated through a GPRS wireless network; the vehicle-mounted end system is used for positioning the position information of the electric power breakdown van; the intelligent terminal is used for receiving the instruction of the dispatching center, and meanwhile, emergency repair personnel can be located, emergency repair work orders are filled, and the like, and the system structure is shown in figure 1.

When the system is in specific operation, firstly, the electric power rush-repair dispatching system reads accident data in the SCADA database to obtain accurate position information of a monitoring area, meanwhile, the electric power rush-repair dispatching system also receives power-off information and repair reporting information of a power customer, generates accident information and displays the accident information on an electric power point diagram, the system generates a dispatching decision according to the fault data and the state of a rush-repair vehicle, a worker dispatches the vehicle to an accident site according to the decision, after rush-repair is finished, a work order is reported, the worker returns the visit of rush-repair quality, an operation flow diagram is shown in FIG. 2, and the specific steps are as follows:

(1) acquiring a power failure: the system can acquire power faults in two ways, wherein one way is to acquire accidents of each transformer substation, the rush-repair system reads data in an SCADA system database, then the data is screened, sorted and deleted for misreporting accidents, the misreporting accidents are displayed on a scheduling system interface, and then staff of the transformer substation are notified and monitored to maintain equipment; and the other method is to acquire the power failure of a common user, and the staff marks the accident site on a map by manually adding through an access telephone and fills in the detailed failure condition according to the user description.

(2) Fault priority policy: if the accident is a concurrent accident, multiple power failures occur at the same time, and the emergency repair vehicle has priority, the vehicle needs to be dispatched to an accident site with high priority according to the emergency degree of the accident.

(3) Positioning an idle emergency repair vehicle: the dispatching center calls out and positions the emergency repair vehicles distributed in various places, inquires the state of the emergency repair vehicles and knows whether the emergency repair vehicles are in the emergency repair state or not.

(4) Scheduling decision: the system simultaneously analyzes the road traffic network according to the position of a fault point and the information of the emergency maintenance vehicle, if a plurality of path points need to be passed through, an optimal path planning algorithm of multi-point materials and personnel scheduling is adopted to give auxiliary scheduling decisions for workers, and the workers inform emergency maintenance work accident information.

(5) And (3) sufficient materials: in the process of rush-repair, rush-repair class needs to communicate with the foreground closely, works out the scheme of rush-repair, and to rush-repair supplies not enough, the condition that the personnel's hand is not enough salvagees, and the foreground is according to the requirement of rush-repair class, and the scheduling personnel, supplies are caught up to the spot of salvageing, and to required supplies equipment, the system looks for equipment information in each power warehouse, and the delivery vehicle transports equipment of salvageing.

(6) Reporting a work order: the electric power enterprise needs to record each accident in detail, and the electric power emergency repair work order comprises emergency repair responsible personnel, belonging teams and groups, emergency repair tasks, safety measures, emergency repair time, emergency repair licensors and other accident information.

Because the existing electric power emergency repair system belongs to paperless office, the electric power emergency repair vehicle which just completes the emergency repair task is probably dispatched to the accident site, and thus, the emergency repair work order is not available. The dispatching center can use the emergency repair dispatching system to send the emergency repair work order to the intelligent terminal. After the emergency repair is finished, emergency repair personnel fill accident information into the intelligent terminal, so that the time is saved, and the working flow is simplified.

(7) And (3) return visit: after the emergency repair is finished, the staff makes a return call to the power complaint user, and the time for recovering the normal state and the service quality of the emergency repair staff are recorded and used as examination targets.

The emergency repair dispatching center used in path planning is the core of the power emergency repair dispatching system, mainly comprises a background application server, is called based on a data module, and is also connected with an emergency repair vehicle positioning monitoring module, a fault intelligent positioning module, a dispatching module, an information communication module and the like; the information communication module is responsible for mutual bidirectional communication among the dispatching center, the vehicle-mounted GPS system, the vehicle-mounted intelligent terminal system and the material equipment module, the vehicle-mounted GPS system transmits position information to the dispatching center, the dispatching center sends dispatching information to vehicles through a wireless network, inquires material states of the material library, sends transportation information to the material center and the like. The dispatching center adopts GPRS network to transmit data.

The background server end comprises a geographic information database, an attribute database and an electric power map server, wherein the attribute database is responsible for managing basic information, power grid equipment information, traffic information, electric power fault information and material inventory information, the electric power map server is responsible for analyzing a map operation instruction sent to the electric power map server by the system end, and the electric power map server returns data after inquiring the geographic information server of the electric power map server.

The emergency repair vehicle positioning module is composed of a GSM short message system and a GPS analysis module, and after an accident occurs, the emergency repair positioning module can send a short message to inform each emergency repair vehicle of starting the positioning module and positioning the accurate position of each emergency repair vehicle to the emergency repair vehicle which does not transmit back coordinate information.

Because the SCADA system cannot operate safely by one hundred percent, false alarm faults of accidents exist in the database, and the fault positioning module is used for screening out normal accidents from accident records meeting accident standards in the SCADA database through a storage process.

The dispatching database is mainly used for giving out a dispatching decision of the emergency repair vehicle and assisting a worker to send out a dispatching instruction; in summer with frequent thunderstorms or winter with abnormal climate, multiple faults are likely to occur in different areas, and based on the acquired data basis provided by the database, the rush repair sequence of the electric power rush repair vehicle can be reasonably and dynamically planned, so that the electric power service quality is effectively improved.

The system is internally provided with a handheld terminal and a vehicle-mounted terminal for receiving an instruction of a dispatching center, due to the popularization of the existing smart phone, a positioning function is popularized in the smart phone, the smart terminal can be matched with a vehicle-mounted terminal for use, the vehicle-mounted terminal positions the position of the electric power breakdown van, and the smart terminal can position the position of emergency repair personnel.

When the emergency repair task is not started, the position of the emergency repair vehicle is in a standby state in an electric power company, at the moment, the vehicle-mounted end is not started, and only the vehicle-mounted end of the vehicle which goes out to execute the emergency repair task is in a starting state all the time; but the intelligent terminal is always in an enabled state; when a power failure occurs, the dispatching center receives a GPS signal returned by the intelligent terminal, and after analysis, the dispatching center obtains the position of the first-aid repair personnel, and then gives the first-aid repair personnel a first-aid repair task.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (2)

1. A rush-repair path planning method based on an electric power map is characterized in that: the method comprises the following steps:

the method comprises the following steps: the method comprises the steps that an application server is installed and set, wireless connection is conducted between the application server and a handheld terminal and a vehicle-mounted terminal through a wireless network, and meanwhile the application server is connected with a database, so that the application server has the function of calling emergency repair vehicle positioning information, fault positioning information, geographic database information, attribute database information and scheduling database information in real time;

step two: the method comprises the steps that an application server is controlled to make a task plan for vehicle monitoring, task plan information is sent to a handheld terminal and a vehicle-mounted terminal of emergency repair personnel through a wireless network, data interaction is conducted after the task information reaches an emergency repair personnel terminal, the application server receives position information, working state information and motion trail information of each emergency repair personnel and each emergency repair vehicle in real time, and after the information is received, the application server sends a scheduling instruction to a corresponding vehicle-mounted terminal;

step three: the application server carries out emergency repair path planning, and an independent geographic information base is established in the system, wherein the geographic information base comprises position information, state information and power customer information of a transformer substation;

when the emergency repair vehicle works, an accident site and the position of the emergency repair vehicle are marked in a geographic information base, and electric power accident information is acquired and obtained;

recording the carrying condition of first-aid repair materials of each vehicle through a scheduling database;

then, scheduling records are carried out, wherein the scheduling records specifically comprise emergency repair work order records, work tickets and operation ticket records, and the emergency repair work orders comprise fault records, emergency repair dispatching records, fault emergency repair records and return visit records;

step four: the emergency repair personnel use the handheld terminal and the vehicle-mounted terminal to execute a path maintenance task and complete the path maintenance task by matching all the emergency repair personnel with a dispatching specialist;

when a task is executed, accident data in an application database is read to obtain accurate position information of a monitoring area, meanwhile, an application server also receives power failure information and repair reporting information of a power consumer, the application server generates the accident information in real time and displays the accident information on a power point diagram, the application server generates scheduling decision information according to the collected fault data and state information of a breakdown van, emergency repair personnel schedule vehicles to go to an accident site according to emergency repair paths generated by scheduling decisions, after emergency repair is finished, a work order is reported, and the personnel return to the emergency repair quality.

2. The rush-repair path planning method based on the power map as claimed in claim 1, wherein: the fourth step specifically comprises the following steps:

step 4.1: acquiring power failure information, namely acquiring accidents of each transformer substation by an application server in two modes, reading data in the application server by an emergency repair system, screening and sorting the data, deleting false alarm accidents, and notifying and supervising staff of the transformer substations to repair equipment; the other method is that the power failure event information of a common user is obtained, a worker marks the accident site on a map by a manual adding mode through an access telephone, and the detailed failure condition is filled according to the user description;

step 4.2: determining the priority of the fault, if the electric power emergency repair accident is a concurrent accident, multiple electric power faults occur at the same time, and under the condition that the emergency repair vehicle has priority, the vehicle is required to be dispatched to an accident site with higher priority according to the emergency degree of the accident;

step 4.3: positioning idle emergency repair vehicles, calling out and positioning emergency repair vehicles distributed in various places by using a scheduling database, inquiring the state of the emergency repair vehicles, and knowing whether the emergency repair vehicles are in an emergency repair state or not;

step 4.4: the application server simultaneously analyzes the road traffic network according to the position of a fault point and the information of the emergency maintenance vehicle, if a plurality of path points need to be passed through, an optimal path planning algorithm of multi-point materials and personnel scheduling is adopted to give auxiliary scheduling decisions of workers, and a special scheduling worker informs emergency maintenance personnel of accident information;

step 4.5: in the emergency repair process, emergency repair shifts need to be communicated with a foreground closely, an emergency repair scheme is formulated, for the conditions of insufficient emergency repair materials and insufficient emergency repair personnel, an application server dispatches corresponding personnel materials to an emergency repair place according to the requirements of the emergency repair shifts, and for the required materials, a system searches equipment information in each electric power warehouse and dispatches vehicles to convey emergency repair equipment;

step 4.6: recording each accident, wherein the filled information of the power line repair work order comprises accident information of emergency repair responsible personnel, belonging teams and groups, emergency repair tasks, safety measures, emergency repair time, emergency repair licensors and the like;

step 4.7: after the emergency repair is finished, the staff makes a return call to the power complaint user, and the time for recovering the normal state and the service quality of the emergency repair staff are recorded and used as examination targets.

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