CN111107490A

CN111107490A - Maintenance information statistical method and device, storage medium and electronic device

Info

Publication number: CN111107490A
Application number: CN201911193674.7A
Authority: CN
Inventors: 赵瑞祥; 裘有斌; 尹作彪
Original assignee: Qing Yanxun Technology Beijing Co Ltd
Current assignee: Qing Yanxun Technology Beijing Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-05-05
Anticipated expiration: 2039-11-28
Also published as: CN111107490B

Abstract

The embodiment of the application provides a maintenance information statistical method and device, a storage medium and an electronic device, wherein the method comprises the following steps: obtaining the position of a moving target through a short-distance wireless positioning module; counting maintenance information of the moving target according to the position relation between the moving target and the fence; wherein the mobile object has an association relationship with the short-range wireless positioning module. Through the embodiment of the application, the moving target can be accurately positioned through the position relation between the position of the moving target and the fence, so that the position and the time of the moving target can be accurately acquired, an automatic and accurate information acquisition process is realized, and the technical problem of inaccurate statistical maintenance information in the related technology is solved.

Description

Maintenance information statistical method and device, storage medium and electronic device

Technical Field

The embodiment of the application relates to the field of positioning, in particular to a maintenance information statistical method and device, a storage medium and an electronic device.

Background

In the related art, an Ultra Wide Band (UWB) technology is a carrier-free communication technology, and data is transmitted by using a nanosecond to microsecond non-sine wave narrow pulse. Following 802.15.4a standard 1. Different from WiFi, Bluetooth and Zigbee, the method can accurately measure the distance, and in the process of measuring the distance, the time of the electromagnetic wave flight between two points is calculated by adopting a mode of measuring the flight time of the light velocity, and the distance between the two points is calculated through the time. The method is used for positioning, the distance between the label and the base station is determined by calculating the time difference of arrival, and then the position of the label is calculated in a triangulation positioning mode.

In the related art, when a maintenance station maintains an automobile, in order to improve efficiency, promote supervision and improve service level, intelligent and transparent service needs to be realized. The system provides real-time maintenance state display for the car owner, provides operation control and operation optimization analysis such as operation scheduling, service statistics and working hour statistics for the dealer, provides good maintenance big data for the host manufacturer, and the collection of the information is mainly realized in a manual or image recognition mode at present.

The UWB tag positioning has a certain precision range, the positioning precision is 10cm, and the precision may fluctuate (positioning precision is positioning error) due to the field environment (humidity and temperature shielding), for example, the precision can only reach 50-100 cm. Therefore, due to the coordinate offset of the positioning tag, the above statistics of the vehicle maintenance related information may be inaccurate, and the positioning result may drift out of the area. For example, when a vehicle/service person is parked near the service station 1 near the aisle, the positioning coordinate point may appear on the aisle for a while and in the station for a while due to the limited positioning accuracy, which causes a problem in statistics. In addition, in the maintenance process, personnel/other objects are shielded, which may cause the positioning accuracy to be reduced, and the maintenance stations are relatively close to each other, so that the positioning coordinate points often jump between two station areas.

In view of the above problems in the related art, no effective solution has been found at present.

Disclosure of Invention

The embodiment of the application provides a maintenance information statistical method and device, a storage medium and an electronic device.

According to an embodiment of the present application, there is provided a maintenance information statistical method including: obtaining the position of a moving target through a short-distance wireless positioning module; counting maintenance information of the moving target according to the position relation between the moving target and the fence; wherein the mobile object has an association relationship with the short-range wireless positioning module.

Optionally, the counting the maintenance information of the moving target according to the position relationship between the moving target and the fence includes: acquiring the entrance time and the exit time corresponding to the first fence through the short-distance wireless positioning module; and counting the maintenance time of the moving target corresponding to the first fence according to the driving-in time and the driving-out time.

Optionally, the method further includes: when the moving target passes through a second fence and has a tendency of entering the second fence, acquiring the identification of the short-distance wireless positioning module through a positioning base station; and binding the equipment identification of the mobile target and the short-distance wireless positioning module identification.

Optionally, the method further includes: and when the moving target passes through a second fence and has a tendency of entering the second fence, acquiring an image of the moving target, and acquiring the equipment identifier according to the image.

Optionally, the method further includes: and acquiring the monitoring information of the moving target according to the position of the moving target.

Optionally, the method further includes: obtaining N continuous positions of the short-distance wireless positioning module, wherein N is a positive integer greater than 1; judging the position states of the N continuous positioning, wherein the position states comprise: the fence is arranged inside and outside the fence; when the position states in the N position points are that the number in the fence is larger than N/2, determining that the moving target is in the area in the fence; and when the position states in the N position points are that the number outside the fence is more than N/2, determining that the moving target is in the area outside the fence.

Optionally, the method further includes: obtaining a first position and a second position of the short-distance wireless positioning module at a first moment and a second moment respectively; if the fence area A to which the first position belongs is communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area B to which the second position belongs; if the fence area A to which the first position belongs is not communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area A to which the first position belongs; the communication means that the fence area A and the fence area B have adjacent, adjacent or connected boundaries, and the moving target can move to and from the fence areas A and B without passing through a third fence area.

Optionally, a fence area E is included between the fence area C and the fence area D, and the fence area E is respectively communicated with the fence area C and the fence area D; the dimensions of the fencing area E are related to the adjacent boundary between the fencing area C and the fencing area D.

According to an embodiment of the present application, there is also provided a maintenance information statistic apparatus including: the first acquisition module is used for acquiring the position of the moving target through the short-distance wireless positioning module; the statistical module is used for counting the maintenance information of the moving target according to the position relation between the moving target and the fence; wherein the mobile object has an association relationship with the short-range wireless positioning module.

Optionally, the statistical module includes: the acquisition unit is used for acquiring the entrance time and the exit time corresponding to the first fence through the short-distance wireless positioning module; and the counting unit is used for counting the maintenance time of the moving target corresponding to the first fence according to the driving-in time and the driving-out time.

Optionally, the apparatus further comprises: the second acquisition module is used for acquiring the identifier of the short-distance wireless positioning module through the positioning base station when the moving target passes through a second fence and has a tendency of entering the second fence; and the binding module is used for binding the equipment identifier of the mobile target and the short-distance wireless positioning module identifier.

Optionally, the apparatus further comprises: and the third acquisition module is used for acquiring an image of the moving target when the moving target passes through a second fence and has a tendency of entering the second fence, and acquiring the equipment identifier according to the image.

Optionally, the apparatus further comprises: and the fourth acquisition module is used for acquiring the monitoring information of the moving target according to the position of the moving target.

Optionally, the apparatus further comprises: a third obtaining module, configured to obtain N consecutive locations of the short-range wireless location module, where N is a positive integer greater than 1; a determining module, configured to determine the position states of the N consecutive locations, where the position states include: the fence is arranged inside and outside the fence; the determining module is used for determining the area of the moving target in the fence when the position state in the N position points is that the number in the fence is greater than N/2; and when the position states in the N position points are that the number outside the fence is more than N/2, determining that the moving target is in the area outside the fence.

Optionally, the apparatus further comprises: the fourth acquisition module is used for acquiring a first position and a second position of the short-distance wireless positioning module at a first moment and a second moment respectively; the first judging module is used for judging that the moving target is located in the fence area B to which the second position belongs if the fence area A to which the first position belongs is communicated with the fence area B to which the second position belongs; a second determining module, configured to determine that the moving target is located in the fence area a to which the first location belongs if the fence area a to which the first location belongs is not communicated with the fence area B to which the second location belongs; the communication means that the fence area A and the fence area B have adjacent, adjacent or connected boundaries, and the moving target can move to and from the fence areas A and B without passing through a third fence area.

According to a further embodiment of the present application, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

According to yet another embodiment of the present application, there is also provided an electronic device, comprising a memory in which a computer program is stored and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.

According to the embodiment of the application, the position of the moving target is obtained through the short-distance wireless positioning module which is in incidence relation with the moving target, then the maintenance information of the moving target is counted according to the position relation between the moving target and the fence, and the moving target can be accurately positioned through the position relation between the position of the moving target and the fence, so that the position and the time of the moving target can be accurately obtained, an automatic and accurate information acquisition process is realized, and the technical problem that the maintenance information is inaccurate in counting in the related technology is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a block diagram of a hardware structure of a data statistics terminal according to an embodiment of the present application;

FIG. 2 is a flow chart of a statistical method of maintenance information according to an embodiment of the present application;

FIG. 3 is a diagram of an application scenario in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of an embodiment of the present invention using three-point TOA positioning;

FIG. 5 is a schematic diagram of an embodiment of the present invention using TOA ranging to generate errors;

FIG. 6 is a schematic view of vehicle entrance detection according to an embodiment of the present invention;

FIG. 7 is a schematic illustration of the location of two fenced areas in accordance with an embodiment of the invention;

FIG. 8 is a schematic illustration of the location of three fenced areas in accordance with an embodiment of the invention;

FIG. 9 is a diagram of a workstation inspection area according to an embodiment of the present invention;

FIG. 10 is a state transition relationship diagram based on the state machine algorithm according to an embodiment of the present invention;

fig. 11 is a block diagram of a maintenance information statistic device according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

The method provided by the embodiment one of the present application may be executed in a computer, a server, or a similar computing device. Taking an example of the data statistics server running on a server, fig. 1 is a hardware structure block diagram of a data statistics server according to an embodiment of the present application. As shown in fig. 1, the server may include one or more (only one shown in fig. 1) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration, and is not intended to limit the structure of the server. For example, the server may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

The memory 104 may be used to store a computer program, for example, a software program and a module of application software, such as a computer program corresponding to a maintenance information statistical method in the embodiment of the present application, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to a server over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the server. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

In the present embodiment, a maintenance information statistical method is provided, and fig. 2 is a flowchart of a maintenance information statistical method according to an embodiment of the present application, as shown in fig. 2, the flowchart includes the following steps:

step S202, obtaining the position of the moving target through a short-distance wireless positioning module;

the short-range wireless positioning module of the embodiment may be a UWB tag, and performs communication positioning by cooperating with other UWB tags or a positioning base station.

The mobile target of this embodiment may be a mobile device, and the portable short-range wireless positioning module is bound to the mobile target, or a short-range wireless positioning module built in the mobile target, such as a vehicle-mounted short-range wireless positioning module, and the position of the mobile target may be indirectly obtained by obtaining the position of the short-range wireless positioning module.

Step S204, counting maintenance information of the moving target according to the position relation between the moving target and the fence;

the mobile target and the short-distance wireless positioning module have an association relationship. The association relationship may be a binding relationship, such as a spatial correspondence between the short-range wireless positioning module and the mobile object.

The maintenance information of the embodiment may be, but is not limited to, information of maintenance time, access time, maintenance area, maintenance personnel, and the like. The fence is an electronic fence preset in an electronic map and corresponds to a maintenance area or a maintenance station.

Through the steps, the position of the moving target is obtained through the short-distance wireless positioning module which is in incidence relation with the moving target, then the maintenance information of the moving target is counted according to the position relation between the moving target and the fence, and the moving target can be accurately positioned through the position relation between the position of the moving target and the fence, so that the position and the time of the moving target can be accurately obtained, an automatic and accurate information acquisition process is realized, and the technical problem that the maintenance information is not accurately counted in the related technology is solved.

Fig. 3 is a diagram of an application scenario of an embodiment of the present invention, and in the implementation scenario, the application scenario includes: the automobile maintenance system comprises an automobile (1) to be maintained, a vehicle-mounted UWB positioning tag (2) capable of being placed on the automobile, an entrance license plate recognition camera (3), a UWB positioning base station (4), a monitoring camera (5) of each station, a virtual electronic fence (6) of an entrance and a virtual electronic fence (7) of each station.

A UWB positioning tag is a mobile terminal based on UWB positioning, and can be communicated with a base station and then an upper computer calculates the specific position of the mobile terminal; the data update frequency of the tag is 5 hz.

UWB positioning base station: the fixed UWB base station used as an anchor point can communicate with a UWB positioning tag, and the collected timestamp information is used for an upper computer to determine the position of the tag;

virtual electronic fence: the software drawn geo-fence can identify the condition that the label enters or exits the fence area through the positioning information.

In an embodiment, the implementation flow of the implementation scenario includes:

a) a reception person places a vehicle-mounted label for the reception person on a vehicle, when a vehicle to be maintained enters the field, the camera identifies license plate information/vehicle model information, and background software automatically binds the license plate information with the UWB label to provide preparation for digital acquisition in the subsequent process;

b) the method comprises the following steps that a vehicle enters a field, the vehicle is driven to a specified station according to a maintenance process, a positioning system positions the vehicle in real time to obtain the plane 2D position of the vehicle, and meanwhile, the station where the vehicle enters is monitored in real time (each station is drawn with a virtual electronic fence);

c) station change: with the advancement of the maintenance process, the positioning system calculates the change of the station information in real time and outputs the station information to the outside;

d) scheduling and monitoring: the 4S shop scheduling system displays the vehicle information of each station and the current maintenance state of each vehicle on a scheduling panel according to the station information of the vehicles and the type of each station;

e) video linkage: according to the position information of the vehicle, the camera at the best angle of the vehicle can be seen in a real-time linkage manner, so that a client can conveniently check the maintenance video;

f) and (3) data analysis: and analyzing the number of times of vehicles passing in and out of each 4S shop, the maintenance time, the stay time of each station, the time spent by each operation flow, the maintenance information of different vehicle types and the like.

The scene of the embodiment is not limited to the maintenance scene of the 4S store, and can also be used in the scenes of electronic equipment maintenance, personnel tracking and the like.

The short-distance wireless positioning module of the embodiment can adopt a TOA (time of arrival) and other reference positioning algorithms and adopt a UWB (ultra-wideband) high-precision positioning technology to perform plane positioning on the maintenance vehicle (can acquire x and y position information of the vehicle). By means of UWB high-precision TOF (time of flight) measurement technology, positioning precision of 10cm can be achieved, and therefore the requirement for high-precision station identification is met. Using the TOA algorithm, which is the intersection of multiple circles in a 2D system or the intersection of multiple spheres in a 3D system, fig. 4 is a schematic diagram of three-point TOA positioning according to an embodiment of the present invention, and the relative position of the mobile node M can be obtained by combining the distances between the mobile node M and the reference nodes R1, R2, and R3.

In actual positioning, the ranging information is erroneous, so it is impossible to exactly intersect one point of three circles like in fig. 4. Fig. 5 is a schematic diagram of errors generated by TOA ranging according to an embodiment of the present invention, and as shown in fig. 5, each ranging group has a certain error, and three circles intersect in an irregular area. The solution requires the integration of the ranging and reference point coordinates for optimal position estimation. Based on the TOA algorithm, assuming that [ x, y ] is the coordinate of a moving point to be measured, the coordinate of a fixed base station is known, and the coordinate of the ith base station is marked as [ xi; yi ] (i ═ 1; 2;. M), M is the total number of fixed base stations, and the distance from the tag to the ith base station is:

the two sides are squared to obtain:

wherein

Conversion to matrix form, one can obtain:

Aθ＝b

the position estimate is obtained by solving the above equation.

In one embodiment of this embodiment, the method for counting maintenance information of a moving target according to a position relationship between the moving target and a fence, where the maintenance information is maintenance time, includes: acquiring the entrance time and the exit time corresponding to the first fence through a short-distance wireless positioning module; and counting the maintenance time of the moving target corresponding to the first fence according to the entrance time and the exit time. In one example, the first fence is an electronic fence of a certain maintenance station, the entering time and the exiting time of the vehicle entering the first fence are respectively 12:00 and 12:15, and the entering time is subtracted from the exiting time by statistics, and the maintenance time is 15 minutes.

The first rail of this embodiment can be any region in the whole maintenance area, and each region corresponds to a station, such as an unloading station, a car washing station, a painting station, etc., and can also be a rail in the whole maintenance area, and the corresponding maintenance time is the maintenance time and the total maintenance time in the station respectively.

The total maintenance time is the time length from the time when the vehicle enters the maintenance station to the time when the vehicle enters the station to be lifted. The maintenance duration of each station is the station as a visual angle, the maintenance time intervals of different types of stations every day are counted, and the station utilization condition is analyzed.

Besides the maintenance time, the maintenance flow/maintenance time distribution of each vehicle can be counted, and the time length of the vehicle entering and exiting each operation station can be counted according to the station entering and exiting time, and the sequence is front and back.

In one implementation manner of this embodiment, when the moving object passes through the second fence and has a tendency to enter the second fence, the positioning base station acquires the identifier of the short-range wireless positioning module; and binding the device identification of the mobile target and the short-distance wireless positioning module identification.

Optionally, when the moving target passes through the second fence and has a tendency to enter the second fence, an image of the moving target is acquired, and the device identifier is obtained according to the image. The device identification may be a license plate number, appearance characteristic information, such as color, model number, etc.

The tendency of the moving object to pass through and enter the second fence includes the moving object being at a boundary location of the second fence (bordered) or at an adjacent location of the second fence (not bordered) and moving in the direction of the second fence, also including an area where a portion of the moving object has entered the second fence.

In one example, the moving target is a vehicle, the license plate of the vehicle can be used as an identifier, the license plate of the moving target vehicle is identified by using a camera license plate identification technology, the vehicle identification result is sent to the positioning module, the label number of the short-distance wireless positioning module is identified, and the entering license plate information and the vehicle number information are automatically bound.

In an implementation manner of this embodiment, after the moving object enters the fence, monitoring information of the moving object may be obtained according to the position of the moving object, so as to perform real-time monitoring or save.

In one implementation scenario, each workstation, aisle, and the like is provided with a fixed camera, basic information (IP address, port number, channel number, user name, password) accessed by each camera is recorded, and the position coordinates V1, V2, … Vn of each camera are measured. For the visual range of each camera, the jurisdiction areas P1, P2, … Pn of each camera are defined. In the embodiment, a video tracking algorithm is adopted for vehicle tracking, and after each positioning point of a tag is obtained, the positioning point is checked in which area of the camera areas P1 and P2 … Pn, so that a corresponding camera is found. If one positioning point is located in the area of 2 cameras at the same time, the camera corresponding to the last time is preferentially selected, the continuity of video tracking is kept, frequent switching of the cameras is avoided, the camera video is browsed through a network interface after real-time video information is obtained, and therefore seamless video tracking is achieved. In the maintenance process, the vehicle is in the rail, and the camera gathers the maintenance video that the vehicle was located in real time, and the user can watch the video on the maintenance billboard or the remote terminal outside the maintenance district, and the user can know the maintenance progress of vehicle in real time. After the maintenance is finished, the maintenance video of the vehicle in the fence is stored after the vehicle drives into the fence, and the monitoring video is collected in real time according to the position of the vehicle, so the maintenance video related to the real-time position of the vehicle can be stored in the background, and the monitoring information can be displayed according to the current position of the vehicle when the historical monitoring is subsequently called or checked.

The short-range wireless positioning module of this embodiment can implement the determination that the moving object enters or exits the fence, and in an implementation manner of this embodiment, the entering determination of the fence includes:

s11, obtaining N continuous positioning with the short-distance wireless positioning module, wherein N is a positive integer greater than 1;

s12, judging N continuous positioning position states, wherein the position states comprise: the fence is arranged inside and outside the fence;

s13, when the position state in the N position points is that the number in the fence is more than N/2, determining the area of the moving target in the fence; and when the position states in the N position points are that the number outside the fence is more than N/2, determining that the moving target is in the area outside the fence.

Optionally, the short-range wireless positioning module is fixed in the middle of the moving target, but the short-range wireless positioning module can be carried at any position of the moving target, if the short-range wireless positioning module is placed at the edge of the moving target, the probability that the position of the moving target is judged wrongly or the fence is judged wrongly is increased, and the short-range wireless positioning module can be adapted to the placing position of the short-range wireless positioning module by correcting the ratio threshold, so as to reduce the positioning error. When the short-range wireless positioning module is placed at the edge position of the moving object, in the process of judging the moving object to enter or exit the fence, if the short-range wireless positioning module is at the head of the moving object, the proportion (such as N/3) of the position state of the moving object in the fence can be reduced, the proportion (such as N2/3) of the position state of the moving object outside the fence can be correspondingly increased, if the short-range wireless positioning module is at the tail of the moving object, the proportion (such as N/3) of the position state of the moving object in the fence can be increased, and the proportion (such as N2/3) of the position state of the moving object outside the fence can be correspondingly reduced.

After the vehicle is provided with the tag, the positioning module can perform high-precision positioning on the vehicle in real time to obtain a series of position points x1, x2, x3,. xn which change along with time. Adopting a sliding time window to judge the position in-out state: the time window is selected to be N seconds. Positions within N seconds are selected into the sliding window, assuming these positions are x1, x2, x3 … xn. And judging the state of each position, including the states: in/inside fence, Out/outside fence, Boundary/at fence Boundary (optional). The Boundary state is a certain range inside and outside the fence Boundary, and the judgment result is influenced by the fact that the state of the vehicle is always jittered when the vehicle is at the Boundary due to the placement accuracy error. And obtaining state judgment results s1, s2 and … sn, and integrating the state judgment results to judge that more than half of results belong to In and are currently In the fence and more than half of results are obtained. Half of this embodiment is only an example, and other threshold values, such as 70%, 90%, etc., may be set. Fig. 6 is a schematic view of vehicle entrance detection according to an embodiment of the present invention.

When the state changes from In to Out or from In to boundry to Out, when the moving target enters the initial fence, judging whether the current position is In the factory area, and if the current position is the factory area, binding the vehicle and the card.

The short-distance wireless positioning module of the embodiment can realize the accurate positioning of the moving target, and prevent the positioning position error caused by the limited positioning precision, and further comprises:

s21, acquiring a first position and a second position of the short-distance wireless positioning module at a first moment and a second moment respectively;

s22, if the fence area A to which the first position belongs is communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area B to which the second position belongs;

s23, if the fence area A to which the first position belongs is not communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area A to which the first position belongs;

wherein, connected means that there is a directly adjacent, adjacent or connected boundary between the fence areas a and B, and the moving object can move to and from the fence areas a and B without passing through a third fence area.

Connectivity includes connections and intercommunications, where a fenced area a is adjacent, adjacent or contiguous to a fenced area B and there is a boundary that can pass through the boundary of fenced area a to reach fenced area B without crossing any other fenced area boundary, and fenced area a is considered to be connected to fenced area B. Conversely, any two fenced areas are considered to be in a non-contiguous relationship if they are either not contiguous, or cannot reach from the boundary of fenced area a to the boundary of fenced area B without crossing any other fenced area boundary. When describing a fence area, adjacent means that the boundaries are contiguous, and adjacent means close to or near. The term "connected" means "connected" or "intersecting".

If the fence area A is communicated with the fence area B, the moving target can move between the fence area A and the fence area B within adjacent time, and if the fence area A is not communicated with the fence area B, the moving target can move between the fence area A and the fence area B only by passing through one or more third-party fence areas, and the moving target cannot move within adjacent time.

Fig. 7 is a schematic position diagram of two fence areas according to an embodiment of the present invention, wherein the fence area a1 and the fence area B1 are connected and can communicate with each other, and are in a connected relationship, and a moving object needs to pass through a third fence area between the fence area a2 and the fence area B2 to communicate with each other, but is not in a connected relationship. In one example, by the short-range wireless positioning module, the positions of the mobile target at adjacent times t1 and t2 are s1 and s2 respectively, if s1 and s2 are in the fence area a1 and the fence area B1 shown in fig. 7 respectively, and the fence area a1 is communicated with the fence area B1, it is determined that the mobile target belongs to the fence area B1 when being located at t2, and if s1 and s2 are in the fence area a2 and the fence area B2 shown in fig. 7 respectively, and the fence area a2 is not communicated with the fence area B2, it is determined that the mobile target belongs to the fence area a2 when being located at t 2. In some embodiments, the area of station 1 corresponds to fence area a1, the area of station 2 corresponds to fence area B1, and the aisle corresponds to B1.

Through the scheme of the embodiment, the accurate positioning of the moving target can be realized, and the positioning position error of the adjacent but disconnected space caused by the limited positioning accuracy or weak positioning signal of the short-distance wireless positioning module is prevented. Therefore, when in statistics, the statistics error is avoided. For example, in the scenario shown in fig. 3, by the above scheme, it can be avoided that when the vehicle maintenance utilization rate between the station 1 and the station 2 is counted, the maintenance time actually generated in the station 1 is mistakenly counted into the station 2.

In one embodiment, the fenced areas C and D include a fenced area E therebetween, which communicates with the fenced areas C and D, respectively; the dimensions of the fencing area E are related to the adjacent boundary between the fencing area C and the fencing area D.

In the three fences of the fence area C, the fence area D, and the fence area E, from the fence area C to the fence area D, a third fence (fence area E) needs to be passed, from the fence area C to the fence area E, no third fence needs to be passed, from the fence area E to the fence area D, and no third fence needs to be passed. The fence area C and the fence area D can be fences of two adjacent stations, and the fence area E is a fence of a passageway; in the fence area C, the fence area D may be an intra-station area of a certain station, an intermediate area (an entrance/exit of the station) of the station, and the fence area E may be an aisle area adjacent to the station.

Fig. 8 is a schematic position diagram of three fencing areas according to an embodiment of the present invention, wherein the fencing area E is located in the middle of the fencing areas C and D, the fencing areas E are in communication with the fencing areas C and D, and the fencing areas E may be sized to be adjacent to the boundary between the fencing areas C and D, and C, D are not intersected with each other. In some embodiments E respectively has an intersection with C, D respectively, such as shown in FIG. 8; in some embodiments, E does not intersect C, D, for example, as shown in fig. 8, the intra-station detection zone corresponds to C, the station entrance detection zone corresponds to E, and the aisle detection zone corresponds to D. In one example, by the short-range wireless positioning module, the positions of the positioning mobile target at adjacent times t3 and t4 are s3 and s4, respectively, if s3 and s4 are in fence area C and fence area E shown in fig. 8, respectively, and fence area C is communicated with fence area E, it is determined that the mobile target is located in fence area E at t4, and if s3 and s4 are in fence area C and fence area D shown in fig. 8, respectively, and fence area C is not communicated with fence area D, it is determined that the mobile target is located in fence area C at t 4.

Through the scheme of the embodiment, the accurate positioning of the moving target can be realized, and the positioning position error caused by limited positioning accuracy or weak positioning signals of the short-distance wireless positioning module is prevented.

In the scheme of this embodiment, the label can carry at the optional position of moving object, places on the car when the label to and place when maintenance personal is on one's body, because the volume of car and people self can occupy certain spatial position, perhaps can have certain distance between people and the car, consequently can lead to positioning error, because the error appears in the position relation of car and rail, consequently the maintenance information of moving object based on position relation statistics also can be inaccurate. If the tag is placed at the tail part of the vehicle, if the tail part of the vehicle stays outside the fence area all the time, most of the vehicle body enters the fence area, and the positioning system can possibly judge that the vehicle is still outside the fence area through the positioning of the tag, so the driving-in time of the vehicle entering the fence can be delayed, and the maintenance time of the vehicle in the fence can be reduced.

In one embodiment of the present invention, the implementation process includes: the process of each maintenance worker/vehicle entering the station is divided into the process of being on the passageway, the process of being at the entrance and the exit of the station and the process of being in the station. The station detection area is shown in the figure. The station entrance/exit detection area is a detection area with the same width as the station and the same height as the station, and fig. 9 is a diagram of the station detection area according to the embodiment of the invention.

FIG. 10 is a state transition relationship diagram based on a state machine algorithm, with workstation A as the description object of the state transition and workstation B as the next workstation (possibly to the left or to the right) according to an embodiment of the present invention. The application flow of the workstation detection state machine algorithm of the embodiment comprises the following steps:

the system enters an initial state when being started, and continuously carries out position estimation on the tag, wherein the position estimation comprises three states: x-coordinate, y-coordinate, position accuracy precision. And setting a precision range a, when the positioning precision is less than a continuously for 5s (example), considering that the positioning is relatively stable, and performing state transition, otherwise, considering that the positioning result is not ideal, and continuously maintaining the initial state.

a) Transition to the "on-aisle" state when the positioning result is located on the aisle M times (M may be set to 10 times by default); b) when the positioning result lasts for M times in the station, the state is transferred to the 'station in' state; c) When the positioning result continues to be at the 'station entrance/exit' for M times, the state is transferred to the 'station entrance/exit'.

When the detection state is "on the aisle", if the positioning result is still in the aisle, the state of "on the aisle" is continued. Otherwise, only the station A or the station B can be transferred to the entrance and the exit of the station A or the station B (the transfer is carried out only when M times of positions are kept at the entrance and the exit of the station A or the station B).

When the system is in the state of "station entrance/exit" (also referred to as the intermediate state area in this embodiment), it can be transferred to "inside station" or "on aisle" according to the positioning result (it needs to be in M positions and located inside station or on aisle)

When the detection state is in the 'station', the detection state can only be transferred to the 'station inlet'.

Through the state machine algorithm of the embodiment, the path mode of station entering and exiting is grasped, the station detection errors caused by label positioning errors can be reduced, and the station detection accuracy is improved to the greatest extent.

If a workstation doorway (intermediate status zone) is provided, it is preferred that at least the height of the workstation doorway is greater than the distance of the UWB device's positioning error in the direction of transfer of the person/vehicle to the adjacent zone (e.g., in one embodiment, the maximum UWB positioning error may be up to 1m over multiple measurements, then the height of the workstation doorway is preferably greater than 1 m).

In the embodiment, the intermediate state area is set by introducing a state machine principle, so that the accuracy of judgment of the positioning area is further improved, for example, a simple state machine may only detect the problem of positioning judgment error of a non-communicated area between adjacent stations, but the state machine added in the intermediate state area can solve the problem of judgment of the stations and the passageways with the communicated areas.

In one embodiment of the invention, as shown in a scene shown in fig. 3, an on-board UWB positioning tag (2) is adsorbed on a vehicle (1) to be repaired, and the on-board positioning tag can be attached to the surface of the vehicle in a magnetic adsorption mode. In some embodiments, the positioning tag triggers a corresponding signal to indicate the state of the positioning tag after being attached to and detached from the vehicle, for example, by providing a contact detection button on a side of the vehicle-mounted tag contacting the vehicle, wherein the contact detection button is in a pressed state due to an attractive force between a magnet on the vehicle-mounted tag and the surface of the vehicle when the vehicle-mounted tag is attached to the surface of the vehicle, and the button is in a released state when the vehicle-mounted tag is detached from the surface of the vehicle. And when the contact switch is switched into different states, the state information of the contact switch is respectively sent to the base station or the server through the UWB module of the positioning tag.

If the contact detection button is switched from the release state to the press state after being received, triggering a camera 3 to shoot a license plate, and binding a license plate identifier and a vehicle-mounted UWB positioning tag 2; if the contact detection button is detected to be switched from the pressing state to the releasing state, the server informs corresponding staff to detect whether the vehicle-mounted UWB positioning tag is accidentally dropped or not, and in some embodiments, the server can also be set to accidentally drop the contact if the UWB positioning tag is switched from the releasing state to the pressing state within a certain time. And if the state change of the UWB positioning tag is not detected within a certain time, and other operations of the operator on the UWB positioning tag are not received, the vehicle corresponding to the UWB positioning tag is repaired and leaves the repair place, and the state switching from the pressing state to the releasing state is registered as the state switching of the UWB positioning tag and the train connection identifier.

In some embodiments, the vehicle enters a maintenance site, the user automatically picks up the vehicle-mounted UWB positioning tag for the vehicle, the camera 3 at the entrance of the maintenance site identifies the license plate number, and automatically associates the license plate number with the UWB tag appearing in the corresponding location area after identifying the license plate number. In some embodiments, after the vehicle-mounted UWB positioning tag is used in a strength area, the positioning tag is attached to a vehicle, and at this time, the UWB positioning tag sends a state change to a server, so as to trigger the camera 3 to recognize a license plate number, and in some embodiments, the time when the camera 3 recognizes the license plate number and the position a of the UWB positioning tag at this time are recorded. The position B of the camera 3 is known or the position of the camera is obtained by configuring the camera 3 with a positioning tag. And calculating the relationship between the position A of the UWB positioning tag and the position B of the camera, so that when the position relationship between the vehicle-mounted positioning tag and other cameras in the maintenance site is close to the relationship between the position A and the position B, the corresponding camera is started to shoot the vehicle, or the shot picture is considered as the picture including the vehicle.

It can be understood that whether the position relation of the vehicle-mounted positioning tag and other cameras in the maintenance site is close to the relation of the position A and the position B or not is judged, and the orientation of the cameras, the running direction of the vehicle and the linear distance between the station positioning tag and the cameras can be also referred to.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

Example 2

In this embodiment, a maintenance information statistics apparatus is further provided for implementing the foregoing embodiments and preferred embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 11 is a block diagram of a maintenance information statistic device according to an embodiment of the present application, and as shown in fig. 11, the device includes: a first acquisition module 110, a statistics module 112, wherein,

a first obtaining module 110, configured to obtain a position of a moving target through a short-range wireless positioning module;

the statistical module 112 is configured to perform statistics on maintenance information of the moving target according to the position relationship between the moving target and the fence; wherein the mobile object has an association relationship with the short-range wireless positioning module.

Optionally, the apparatus further comprises: the fourth acquisition module is used for acquiring a first position and a second position of the short-distance wireless positioning module at a first moment and a second moment respectively; the first judging module is used for judging that the moving target is located in the fence area B to which the second position belongs if the fence area A to which the first position belongs is communicated with the fence area B to which the second position belongs; a second determining module, configured to determine that the moving target is located in the fence area a to which the first location belongs if the fence area a to which the first location belongs is not communicated with the fence area B to which the second location belongs; the communication means that the fence area a and the fence area B have a directly adjacent, adjacent or connected boundary therebetween, and the moving object can move to and from the fence area a and the fence area B without passing through a third fence area.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 3

Embodiments of the present application further provide a storage medium having a computer program stored therein, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:

s1, obtaining the position of the moving object through the short-distance wireless positioning module;

s2, counting maintenance information of the moving target according to the position relation between the moving target and the fence; wherein the mobile object has an association relationship with the short-range wireless positioning module.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present application further provide an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A maintenance information statistical method is characterized by comprising the following steps:

obtaining the position of a moving target through a short-distance wireless positioning module;

counting maintenance information of the moving target according to the position relation between the moving target and the fence;

wherein the mobile object has an association relationship with the short-range wireless positioning module.

2. The method of claim 1, wherein the step of counting maintenance information of the moving object according to the position relationship between the moving object and the fence comprises:

acquiring the entrance time and the exit time corresponding to the first fence through the short-distance wireless positioning module;

and counting the maintenance time of the moving target corresponding to the first fence according to the driving-in time and the driving-out time.

3. The method of claim 1, further comprising:

when the moving target passes through a second fence and has a tendency of entering the second fence, acquiring the identification of the short-distance wireless positioning module through a positioning base station;

and binding the equipment identification of the mobile target and the short-distance wireless positioning module identification.

4. The method of claim 3, further comprising:

and when the moving target passes through a second fence and has a tendency of entering the second fence, acquiring an image of the moving target, and acquiring the equipment identifier according to the image.

5. The method of claim 1, further comprising:

and acquiring the monitoring information of the moving target according to the position of the moving target.

6. The method of claim 1, further comprising:

obtaining N continuous positions of the short-distance wireless positioning module, wherein N is a positive integer greater than 1;

judging the position states of the N continuous positioning, wherein the position states comprise: the fence is arranged inside and outside the fence;

when the position states in the N position points are that the number in the fence is larger than N/2, determining that the moving target is in the area in the fence; and when the position states in the N position points are that the number outside the fence is more than N/2, determining that the moving target is in the area outside the fence.

7. The method of claim 1, further comprising:

obtaining a first position and a second position of the short-distance wireless positioning module at a first moment and a second moment respectively;

if the fence area A to which the first position belongs is communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area B to which the second position belongs;

if the fence area A to which the first position belongs is not communicated with the fence area B to which the second position belongs, determining that the moving target is located in the fence area A to which the first position belongs;

the communication means that the fence area A and the fence area B have adjacent, adjacent or connected boundaries, and the moving target can move to and from the fence areas A and B without passing through a third fence area.

8. A maintenance information statistic device, comprising:

the first acquisition module is used for acquiring the position of the moving target through the short-distance wireless positioning module;

the statistical module is used for counting the maintenance information of the moving target according to the position relation between the moving target and the fence;

9. A storage medium having a computer program stored thereon, wherein the computer program is arranged to, when executed, perform the method of any of claims 1 to 7.

10. An electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the method of any of claims 1 to 7.