CN111918212B

CN111918212B - Method, electronic device, and medium for vehicle restriction management

Info

Publication number: CN111918212B
Application number: CN202011047887.1A
Authority: CN
Inventors: 李祖南; 章瑞平; 谢春
Original assignee: Shanghai Ehi Auto Services Co ltd; Nanjing Wenhang Automobile Technology Co ltd
Current assignee: Shanghai Ehi Auto Services Co ltd; Nanjing Wenhang Automobile Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-15
Anticipated expiration: 2040-09-29
Also published as: CN111918212A

Abstract

The present disclosure provides a method, an electronic device, and a computer-readable storage medium for vehicle restriction management. The method comprises the following steps: generating an electronic fence for indicating a restricted area of a city based on information of the restricted area of the city and an electronic map; acquiring a plurality of point data of the vehicle obtained through a global navigation satellite system; calibrating the plurality of point data of the vehicle to determine the actual point position of the vehicle; and determining whether the vehicle is in the electronic fence or not based on the actual point position of the vehicle and the electronic fence so as to determine the traffic restriction condition of the vehicle.

Description

Method, electronic device, and medium for vehicle restriction management

Technical Field

The present disclosure relates generally to the field of vehicle control technology, and more particularly, to a method, user equipment, and computer-readable storage medium for vehicle restriction management.

Background

Currently, with the development and improvement of Global Navigation Satellite System (GNSS), point location data of a vehicle can be easily obtained through GNSS service, and many vehicle applications, such as vehicle Navigation applications and location-based vehicle services, are developed on the basis of the point location data. GNSS is a general term for satellite navigation positioning systems such as the beidou system (BDS) in china, the Global Positioning System (GPS) in the united states, the GLONASS system in russia, and the Galileo (Galileo) system in europe. With one or more systems in the GNSS, an on-board positioning device (receiver) can obtain point location data for the vehicle.

However, in the interaction process between the vehicle-mounted positioning device and the positioning satellite, point location drift may occur due to the influence of the atmospheric environment and the position, and particularly in a stationary state of the vehicle, due to the influence of the vehicle staying position, such as a tall building, an underground parking lot, and the like, satellite signals may be refracted, reflected or weakened in signal strength for many times, and these signal changes may cause the point location data calculated by the vehicle-mounted positioning device to continuously change or the point location accuracy to deteriorate in the stationary state of the vehicle, which is called point location drift. The point location drift makes the vehicle-mounted positioning device unable to obtain the accurate position of the vehicle, thereby deteriorating the effect of various applications based on the point location data of the vehicle.

Further, for vehicle operation services such as vehicle renting, operators desire to be able to monitor the location of a vehicle to obtain various conditions of operating the vehicle, such as whether the vehicle violates certain city restriction policies, whether the vehicle is in an abnormal driving state, whether the vehicle is in an allowed operating range, and the like. Here, the restriction policy generally refers to a policy that prohibits a specific vehicle from entering a specific area of a city at a specific or unspecified time. At present, various different road traffic control policies are designed in many large and medium-sized cities in China, such as the tail number traffic control of Beijing, the start four stop four times of Guangzhou, and the Shanghai brand No. C license plate is prohibited from entering the outer ring. In these restriction policies, the restricted areas are often irregular, which presents great difficulties for vehicle operation and scheduling.

In view of the above problem, the inventor of the present invention proposes that it is possible to obtain point location data of a vehicle and determine an irregular restricted area through GNSS to determine whether the vehicle enters the restricted area. However, on the one hand, the point location data of the vehicle acquired through the GNSS often drift, which easily causes abnormal situations such as that the vehicle is considered to enter the restricted area without driving clearly or is considered to move continuously inside and outside the restricted area. On the other hand, the irregular restricted area is difficult to determine, and it is difficult to compare the point location data of the vehicle with the restricted area.

Disclosure of Invention

In view of at least one of the above problems, the present disclosure provides a solution for vehicle restriction management that can accurately determine whether a vehicle is within a restriction area.

According to one aspect of the present disclosure, a method for vehicle restriction management is provided. The method comprises the following steps: generating an electronic fence for indicating a restricted area of a city based on information of the restricted area of the city and an electronic map; acquiring a plurality of point data of the vehicle obtained through a global navigation satellite system; calibrating the plurality of point data of the vehicle to determine the actual point position of the vehicle; and determining whether the vehicle is in the electronic fence or not based on the actual point position of the vehicle and the electronic fence so as to determine the traffic restriction condition of the vehicle.

According to another aspect of the present disclosure, an electronic device is provided. The electronic device includes: at least one processing unit; and at least one memory coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit, the instructions when executed by the at least one processing unit, cause the electronic device to perform steps in accordance with the above-described method.

According to yet another aspect of the present disclosure, a computer-readable storage medium is provided, having stored thereon computer program code, which, when executed, performs the method as described above.

Drawings

The present disclosure will be better understood and other objects, details, features and advantages thereof will become more apparent from the following description of specific embodiments of the disclosure given with reference to the accompanying drawings.

FIG. 1 shows a schematic diagram of a system for vehicle restriction management, according to an embodiment of the present disclosure.

FIG. 2 illustrates a screenshot of an exemplary electronic map.

FIG. 3 illustrates a flow chart of a method for vehicle restriction management, according to some embodiments of the present disclosure.

Fig. 4 shows a schematic diagram of the steps for generating an electronic fence indicating a restricted area of a city, according to an embodiment of the invention.

Fig. 5 shows a schematic view of an electronic fence according to an embodiment of the invention.

FIG. 6 shows a flowchart of steps for determining actual point locations of a vehicle, according to an embodiment of the invention.

FIG. 7 shows a flowchart of steps for determining a restriction condition of a vehicle, according to an embodiment of the invention.

Fig. 8 shows a schematic diagram of a scenario for determining whether a vehicle is within a restricted area on an electronic map according to an embodiment of the present invention.

Fig. 9 shows a schematic diagram of the intersection of a ray from a vehicle with the boundary of an electronic fence.

FIG. 10 illustrates a block diagram of an electronic device suitable for implementing embodiments of the present disclosure.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one embodiment" and "some embodiments" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object.

Fig. 1 shows a schematic view of a system 1 for vehicle restriction management according to an embodiment of the present disclosure. As shown in fig. 1, the system 1 includes one or more vehicles 10 (only one vehicle 10 is shown in fig. 1 by way of example) and a server 20. The vehicle 10 may include components (not shown) such as an onboard positioning device (e.g., an onboard GPS module) and/or an Electronic Control Unit (ECU). The vehicle 10 and the server 20 may implement the method 100 of the present invention, described below, alone or in combination. Where the vehicle 10 implements the method alone, the vehicle 10 may include an electronic device 12, the electronic device 12 including at least one processor and at least one memory coupled to the at least one processor, the memory having stored therein instructions executable by the at least one processor, the instructions when executed by the at least one processor performing at least a portion of the method 100 as described below. Note that in the present invention, the electronic device 12 may be a separate electronic device developed by, for example, a vehicle rental company and installed on the vehicle 10, or the electronic device 12 may be integrated as a part of an on-board positioning device (e.g., an on-board GPS module) or ECU of the vehicle 10. The server 20 may be, for example, a server of a vehicle rental company, which may communicate with the vehicle 10 to send and receive various information. For example, when the server 20 executes the method 100 according to the present invention, the server 20 may receive point location data of the vehicle 10 from the vehicle 10, which is obtained by an onboard locating device, and after determining a traffic restriction situation of the vehicle 10, may inform the vehicle 10 of the traffic restriction situation, for example, to remind the driver of the vehicle 10 of the current traffic restriction area. While the electronic device 12 executes the method 100 according to the present invention, the server 20 may receive the determined condition of the vehicle 10 from the vehicle 10 (e.g., the vehicle 10 is in a restricted area, the vehicle 10 is in an abnormal driving state, etc.), so that the server 20 can grasp the condition of the vehicle 10 in time and take corresponding measures. The specific structure of the electronic device 12 and the server 20 may be described below in conjunction with fig. 10, for example.

Fig. 2 illustrates a screenshot of an exemplary electronic map 200. The electronic map 200 may be, for example, a visual map generated by rendering electronic map data provided by a professional map data provider (e.g., hundredths, google, or grand, etc.) on the server 20 or the electronic device 12.

Fig. 3 illustrates a flow chart of a method 100 for vehicle restriction management, according to some embodiments of the present disclosure. The method 100 may be performed, for example, by the electronic device 12 or the server 20 of the vehicle 10 in the system 1 shown in fig. 1. The method 100 is described in more detail below with reference to fig. 1 to 10, taking the server 20 as an example.

As shown in fig. 3, the server 20 may generate an electronic fence indicating a restricted area of a city based on information of the restricted area of the city and an electronic map (as shown in fig. 2) at step 110. Here, the information of the restricted area of the city is used to describe the geographical information of the restricted area of the city, and may be a plurality of roads of the city that may constitute a closed area, or a loop of the city, or the like. Those skilled in the art will appreciate that the determination of the restricted area may include not only geographic information of the restricted area, but also license plate information and/or time information of the vehicle 10. In some embodiments, the restricted zones for different vehicles 10 may be different, for example, many cities specify different restricted zones for local license plates and non-local license plates. Furthermore, in some embodiments, the restricted area may be different for different time periods, e.g., the restricted area for some urban morning and evening peak periods may be different from the restricted area for other time periods. In this context, the influence of the license plate and the time on the restricted area is not taken into account, but those skilled in the art will appreciate that the determination of the restricted area may be performed by merely superimposing the license plate and/or time information of the vehicle 10 on the basis of the above-mentioned geographic information. For example, a restricted area in Hangzhou City may be described as: for the Zhe A license plate, in the morning and evening peak period of working day, all roads and elevated frames (including ramps, auxiliary bridges and tunnels) in an enclosed area formed by' auspicious road-stone bridge road-autumn wave road-reviving road-old reviving road-tiger running road-full ridge road-five-old peak tunnel-Jiqingshan tunnel-Meiling north road-Jirisong tunnel-Ling south road-Ling xi tunnel-xi river road-purple golden harbor road-Wen west road-ancient mound road are restricted (the restriction of the Zhe A license plate tail number policy is not considered here). For another example, the restricted area of Shanghai city for Shanghai Hu C license plate can be described as: the outer loop line is restricted by the inner.

Fig. 4 shows a schematic diagram of a step 110 for generating an electronic fence indicating a restricted area of a city, according to an embodiment of the invention. Fig. 5 shows a schematic view of an electronic fence 250 according to an embodiment of the invention. The electronic fence 250 of fig. 5 is, for example, superimposed on the electronic map 200 shown in fig. 2.

In particular, step 110 may comprise a sub-step 112 in which a first connection point 201 is determined on the electronic map 200 based on information of a restricted area of a city as described above. Here, the connection point indicates an intersection of roads of the restricted area. Since the information of the restricted area describes a closed area, any one of the road intersections can be determined as the first connection point 201. For example, in the description of the restricted area of the Hangzhou city as described above, the intersection of "auspicious road" and "pink road" may be selected as the first connection point 201. In the description of the restricted area of shanghai city as described above, the intersection of the outer circumferential line and any one of the roads intersecting therewith may be selected as the first connecting point 201.

Next, in sub-step 114, starting from the first connection point 201, subsequent connection points 203, 205, 207 … … subsequent to the first connection point 201 are determined in turn. Here, the determination of the subsequent connection point may be a road intersection point sequentially determined according to the order of the roads in the description of the restricted area, or may be an intersection point of roads intersecting with a circular line sequentially determined in the clockwise or counterclockwise direction of the circular line.

After all the connection points 201, 203, 205, 207 … … are sequentially determined according to the information of the restricted area, in sub-step 116, all the connection points may be sequentially connected to determine at least one closed map area 250 on the electronic map 200 as an electronic fence indicating the restricted area of the city, wherein the connecting

lines

202, 204, 206 … … between adjacent connection points constitute the boundaries of the electronic fence 250.

The server 20 may store therein and update (e.g., according to time constraints in a restriction policy) all data (e.g., a list of coordinate data for all connection points 201, 203, 205, 207 … …) of the electronic fence 250 for the restricted area of the city, generated as described above. Alternatively, in the case where the method 100 is performed by the electronic device 12 of the vehicle 10, the electronic device 12 may store or receive the information of the restricted area and the electronic map data described above in advance from the server 20, and generate the electronic fence 250 indicating the restricted area based on the information of the restricted area and the electronic map data.

Continuing with FIG. 3, at step 120, a plurality of pieces of point data of the vehicle 10 obtained via GNSS are acquired. Here, the plurality of pieces of point data of the vehicle 10 may be calculated by an on-vehicle positioning apparatus based on data obtained from positioning satellites of the GNSS while the vehicle 10 is in a stationary or moving state. Where method 100 is performed by server 20, such point location data may be received by server 20 from an on-board location device of vehicle 10. The method for obtaining point location data of a vehicle through GNSS is well known to those skilled in the art and will not be described herein.

At step 130, the plurality of point data of the vehicle 10 is calibrated to determine the actual point locations of the vehicle 10.

FIG. 6 shows a schematic diagram of a step 130 for determining actual point locations of the vehicle 10, according to an embodiment of the invention.

Specifically, step 130 may include sub-step 132, wherein based on condition C1: the ignition state of the vehicle 10 (e.g., whether the ACC of the vehicle 10 is in the ignition or key-off state) and condition C2: at least two consecutive point location data among the plurality of point location data acquired in step 120 are used to determine whether the vehicle 10 has a point location drift.

Specifically, the electronic device 12 may take the point location data L (0) when the ignition state of the vehicle 10 becomes off as the origin point location data of the vehicle 10. Next, at least two consecutive point data subsequent to the origin point data L (0) are acquired from the plurality of point-bit data acquired in step 120, and distances between the at least two consecutive point data and the origin point data L (0), respectively, are determined. For example, assume that M (M is a positive integer greater than or equal to 2) point data L (n), L (n +1), … … L (n + M-1) consecutive after n (n is a positive integer greater than or equal to 1) point data after origin point data L (0) are acquired, and distances between the M point data and origin point data L (0) are d, respectively₀、d₁、……d_M-1Then the distance d can be adjusted₀、d₁、……d_M-1The values of (A) are divided into the following cases: 1) are all equal to 0; 2) are all larger than 0 and smaller than a preset value; 3) are both greater than the predetermined value; and 4) other cases, such as a combination of at least two of the three cases described above. In one embodimentM may be a positive integer of 2 to 5, more preferably 2 or 3, and the predetermined value may be 10 meters.

For the above case 1), it can be determined that the M dot bit data is equal to the origin dot data L (0), that is, the vehicle 10 is not displaced. In this case, it can be considered that the vehicle 10 is in a stopped state at all times, and correction of the dot data (or a special correction of which correction value is 0) is not required.

For the above case 3), it can be determined that the vehicle 10 in the key-off state has generated a sufficiently large continuous displacement. In this case, the vehicle 10 may be considered to be in an involuntary movement state (e.g., being towed by a trailer). Where method 100 is implemented by electronic device 12, electronic device 12 may issue an alert signal to server 20 indicating an abnormal movement. In the case where the method 100 is implemented by the server 20, the server 20 may signal an alarm to a service system of the operator of the vehicle 10 or alert a traffic authority.

In case 4) described above, it is regarded as a shake of the acquired point location data of the vehicle 10, and no special processing is performed.

For case 2) above, it can be determined that the vehicle 10 in the key-off state has produced a continuously small displacement, which can be considered to be caused by a point location shift. In this case, at substep 134, the point location data for the vehicle 10 may be calibrated to determine the actual point location of the vehicle 10. Specifically, M pieces of consecutive point location data L (n), L (n +1), … … L (n + M-1) are all set as the origin point location data L (0) as the actual point location of the vehicle 10. That is, if there is a distance between several consecutive point location data subsequent to the origin point location data L (0) and the origin point location data L (0) but the distance is small, it can be considered that the distance is due to a point location shift, rather than the vehicle 10 actually being displaced.

In other embodiments, M distances d may be found₀、d₁、……d_M-1The average value of (a) is taken as a difference value between the measured point location data and the actual point location, and the actual point location of the vehicle 10 is obtained by subtracting the difference value from the measured point location data. This is achieved byThis approach is particularly suitable when the vehicle 10 is in motion.

Further, in some embodiments, in determining point location drift, condition C3 may be introduced in addition to the ignition state of the vehicle 10 and the distance between the M consecutive point location data and the origin point location data: it is determined whether the speed of the vehicle is zero. In this case, the electronic device 12 or the server 20 may read the real-time speed of the vehicle 10 from the ECU of the vehicle 10, for example. At a distance d₀、d₁、……d_M-1Are both greater than 0 and less than the predetermined value, and the read speed of the vehicle 10 is zero, it is determined that the vehicle 10 has a point location drift. This condition C3 may be used in combination with the above-described condition C1 to further determine that the vehicle 10 is in a stopped state.

Further, in some embodiments, in determining point location shift, in addition to the above-described conditions C1, C2, C3, a condition C4 may be introduced: determine whether the vehicle 10 is within the allowable operating area and at a distance d₀、d₁、……d_M-1When the speed of the vehicle 10 is zero and the vehicle 10 is within the allowable operation area, it is determined that the point position drift of the vehicle 10 exists. The condition C4 is used to determine whether the vehicle 10 is operating in an allowable operating area. In the case where the method 100 is implemented by the electronic device 12, when it is determined that the vehicle 10 is not operating within the allowable operating area, the electronic device 12 may issue an alarm signal indicating that the allowable operating area is exceeded to the server 20. In the case where the method 100 is implemented by the server 20, the server 20 may signal an alarm to a service system of the operator of the vehicle 10 or alert a traffic authority.

Here, the allowable operating area may be set individually for each vehicle 10 by the operator of the server 20. In practice, for various reasons, the operator of the vehicle 10 may wish to set different allowable operating areas for different vehicles 10, which may be, for example, a city, a province, etc. Alternatively, the permitted operational area may be the continental china. In this case, a simple method of determining the allowable operating area is to connect four points farthest from southeast, northwest, and east of continental china to form a quadrangular shape as the allowable operating area.

Continuing with fig. 3, at step 140, electronic device 12 determines whether vehicle 10 is within electronic fence 250 to determine a restriction of vehicle 10 based on the actual point location of vehicle 10 determined at step 130 and electronic fence 250 indicating the restricted area of the city determined at step 110.

Fig. 7 shows a flowchart of step 140 for determining a traffic restriction of the vehicle 10 according to an embodiment of the present invention, and fig. 8 shows a schematic diagram of a scene on an electronic map 200 for determining whether the vehicle 10 is within a traffic restriction area according to an embodiment of the present invention.

As shown in fig. 7, step 140 may include a substep 142 in which a ray is generated on the electronic map 200, starting from the actual point location of the vehicle 10. The ray may be a ray in any direction, two

rays

801 and 802 from the vehicle 10 and one ray 803 from the other vehicle 10' are shown in fig. 8.

Next, in sub-step 144, the number of intersection points of the ray with all boundaries of the electronic fence 250 is determined.

Taking ray 801 as an example, it is a ray extending in the horizontal direction. Fig. 9 shows a schematic view of the intersection D of a ray 801 from the vehicle 10 with the boundary 204 of the electronic fence 250.

A plane rectangular coordinate system is established by taking a ray 801 from the point A as an X axis and taking a perpendicular line thereof as a Y axis. The actual point location of the vehicle 10 is a with coordinates (Ax, Ay), the boundary between the connection points 203 (point B in the figure with coordinates (Bx, By)) and 205 (point C in the figure with coordinates (Cx, Cy)) of the electronic fence 250 intersects the ray 801 starting from point a with coordinates (Dx, Dy), point F is the intersection point between the ray perpendicular to the ray 801 starting from B and the ray parallel to the ray 801 starting from C, line segment BF is perpendicular to the ray 801, line segment CF is parallel to the ray 801, and point E is the intersection point of BF and the ray 801. Here, the point B and the point C are determined by, for example, finding one connection point and its adjacent connection points that are closest to the ordinate of the point a among all the connection points.

According to the triangle-like principle, the abscissa Dx of the intersection point D can be determined as follows:

Dx = Bx – (Bx - Cx) / (By - Cy) * (By - Ay)。

if Dx > Ax, it indicates that intersection D is on the right side of vehicle 10, so ray 801 has one intersection with the fence 250.

If Dx < Ax, indicates that the intersection D is on the left side of the vehicle 10, the ray 801 has no intersection with the fence 250.

All points of intersection of the rays from the vehicle 10 with the electronic fence are determined in turn. When the number of intersection points is odd, at sub-step 146, it is determined that the vehicle 10 is within the electronic fence 250, i.e., within the restricted area.

On the other hand, if the number of intersection points is even, at sub-step 148, it is determined that the vehicle 10 is outside the electronic fence 250, i.e., outside the restricted zone.

As shown in fig. 8, for a ray 801 that originates from the vehicle 10, it has 1 intersection with the electronic fence 250, thus determining that the vehicle 10 is located within the electronic fence 250. For ray 802, which originates from vehicle 10, it has 3 intersections with fence 250, and thus vehicle 10 is also determined to be within fence 250. That is, the direction of the rays emanating from the vehicle 10 does not affect the final determination.

For another vehicle 10 ', ray 803 from vehicle 10 ' has 2 intersections with fence 250, thus determining that vehicle 10 ' is outside fence 250.

The schematic of fig. 8 also shows the above conclusions.

By the method 100 described above, it can be accurately determined whether the vehicle 10 is within the restricted area. When the server 20 executes the method 100 according to the invention, the server 20 may issue a warning signal to the vehicle 10 to remind the driver of the vehicle 10 to leave the restricted area as soon as possible and/or may issue an alarm signal to the operator's business system to inform the operator that the vehicle 10 is in the restricted area when it is determined in step 140 that the vehicle 10 is in the restricted area. While electronic device 12 is executing method 100 according to the present invention, electronic device 10 may issue a reminder signal to remind the driver of vehicle 10 to drive out of the restricted zone as soon as possible, and/or electronic device 12 may send an alert signal to server 20 to indicate that vehicle 10 is within the restricted zone.

FIG. 10 illustrates a block diagram of an electronic device 1000 suitable for implementing embodiments of the present disclosure. The electronic device 1000 may be, for example, the server 20 or the electronic device 12 located in the vehicle 10 as described above.

As shown in fig. 10, electronic device 1000 may include one or more Central Processing Units (CPUs) 1010 (only one shown schematically) that may perform various suitable actions and processes in accordance with computer program instructions stored in Read Only Memory (ROM) 1020 or loaded from storage unit 1080 into Random Access Memory (RAM) 1030. In the RAM 1030, various programs and data required for the operation of the electronic apparatus 1000 can also be stored. The CPU 1010, ROM 1020, and RAM 1030 are connected to each other via a bus 1040. An input/output (I/O) interface 1050 is also connected to bus 1040.

A number of components in the electronic device 1000 are connected to the I/O interface 1050, including: an input unit 1060 such as a keyboard, a mouse, or the like; an output unit 1070 such as various types of displays, speakers, and the like; a storage unit 1080, such as a magnetic disk, optical disk, or the like; and a communication unit 1090 such as a network card, modem, wireless communication transceiver, or the like. The communication unit 1090 allows the electronic device 1000 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.

The method 100 described above may be performed, for example, by the central processing unit 1010 of the electronic device 1000 (e.g., the electronic device 12 or the server 20 in the vehicle 10). For example, in some embodiments, method 100 may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as storage unit 1080. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 1000 via the ROM 1020 and/or the communication unit 1090. When the computer program is loaded into RAM 1030 and executed by CPU 1010, one or more operations of method 100 described above may be performed. Further, the communication unit 1090 may support wired or wireless communication functions.

Those skilled in the art will appreciate that the electronic device 1000 shown in fig. 10 is merely illustrative. In some embodiments, electronic device 12 or server 20 may contain more or fewer components than electronic device 1000. For example, where the electronic device 12 is a separate module implemented within the vehicle 10, the electronic device 12 may simply include a processor and a memory coupled to the processor, and having stored therein instructions executable by the processor that, when executed by the processor, perform the method 100 as described above.

By using the scheme of the invention, on one hand, the accurate actual point position of the vehicle is obtained by calibrating the obtained point position information of the vehicle, and on the other hand, the electronic fence which is completely matched is generated for the irregular restricted area on the map, so that whether the vehicle is or was in the restricted area can be accurately judged.

The method 100 for vehicle restriction management and the electronic device 1000 usable as the electronic device 12 and the server 20 according to the present invention are described above with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that the performance of the steps of the method 100 is not limited to the order shown in the figures and described above, but may be performed in any other reasonable order. For example, steps 110 and 120 of method 100 shown in FIG. 1 may be performed in parallel or in other orders. In addition, the electronic device 1000 does not necessarily include all the components shown in fig. 10, it may include only some of the components necessary to perform the functions described in the present invention, and the connection manner of the components is not limited to the form shown in the drawings.

The present invention may be methods, apparatus, systems and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therein for carrying out aspects of the present invention.

In one or more exemplary designs, the functions described in this disclosure may be implemented in hardware, software, firmware, or any combination thereof. For example, if implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.

The units of the apparatus disclosed herein may be implemented using discrete hardware components, or may be integrally implemented on a single hardware component, such as a processor. For example, the various illustrative logical blocks, modules, and circuits described in connection with the disclosure may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for vehicle restriction management, comprising:

generating an electronic fence for indicating a restricted area of a city based on information of the restricted area of the city and an electronic map;

acquiring a plurality of point data of the vehicle obtained through a global navigation satellite system;

calibrating the plurality of point data of the vehicle to determine an actual point location of the vehicle; and

determining whether the vehicle is within the electronic fence based on the actual point location of the vehicle and the electronic fence to determine a restriction condition of the vehicle,

wherein generating an electronic fence to indicate a restricted area of the city comprises:

determining a first connection point on the electronic map based on information of a restricted area of the city;

starting from the first connecting point, sequentially determining subsequent connecting points behind the first connecting point; and

connecting all the connection points in sequence to determine at least one closed map area on the electronic map as an electronic fence for indicating a restricted area of the city, a connecting line between adjacent connection points constituting a boundary of the electronic fence, wherein the connection points include the first connection point and the subsequent connection point, and the connection points indicate intersection points of roads of the restricted area,

wherein determining the actual point location of the vehicle comprises:

determining whether the vehicle has point location drift based on an ignition state of the vehicle and at least two consecutive point location data of the plurality of point location data of the vehicle; and

in response to determining that the vehicle has a point location drift, calibrating a plurality of point data of the vehicle to determine an actual point location of the vehicle,

wherein determining whether the vehicle has point location drift comprises:

point location data when the ignition state of the vehicle is changed into flameout is obtained and used as the origin point location data of the vehicle;

acquiring at least two continuous point position data behind the origin point position data from the plurality of point position data;

determining the distance between the at least two continuous point location data and the origin point location data respectively; and

and if the distances are all larger than zero and smaller than a preset value, determining that the point location drift exists in the vehicle.

2. The method of claim 1, wherein calibrating the plurality of point data of the vehicle to determine the actual point location of the vehicle comprises:

and setting the at least two continuous point location data as the origin point location data to serve as the actual point location of the vehicle.

3. The method of claim 1, wherein if the distances are both greater than zero and less than the predetermined value, determining that the vehicle has a point location drift further comprises:

determining whether a speed of the vehicle is zero; and

and if the distances are all larger than zero and smaller than the preset value and the speed of the vehicle is zero, determining that the point location drift exists in the vehicle.

4. The method of claim 1, wherein if the distances are both greater than zero and less than the predetermined value, determining that the vehicle has a point location drift further comprises:

determining whether the vehicle is within an allowed operation area; and

determining that the vehicle has point location drift if it is determined that all of the following are satisfied:

the distances are all larger than zero and smaller than the preset value;

the speed of the vehicle is zero; and

the vehicle is within the operation-allowed area.

5. The method of claim 1, wherein determining whether the vehicle is within the electronic fence to determine a traffic restriction condition of the vehicle based on the actual spot location of the vehicle and the electronic fence comprises:

generating a ray on the electronic map from the actual point position of the vehicle;

determining a number of intersections of the ray with all boundaries of the electronic fence;

if the number of the intersection points is odd, determining that the vehicle is in the restricted area; and

determining that the vehicle is outside the restricted zone if the number of intersection points is even.

6. An electronic device, comprising:

at least one processing unit; and

at least one memory coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit, the instructions when executed by the at least one processing unit, cause the electronic device to perform the steps of the method of any of claims 1-5.

7. A computer readable storage medium having stored thereon computer program code which, when executed by a processor, performs the method of any of claims 1 to 5.