A directional lane vehicle identification system and method for law enforcement management

Abstract

The application discloses a kind of directional lane vehicle identification system and method for law enforcement management, it is related to vehicle intelligent identification technical field, first in entrance check place setting response area is identified to the vehicle on entering directional lane, afterwards through process processing end, the vehicle information in driving is handled, to directional vehicle enters directional lane as starting time, every T2 time obtains the distance between directional lane and the distance of directional vehicle driving, and it is handled respectively to obtain deviation angle and bias angle, afterwards through information judging end, deviation angle is compared and judged with bias angle, obtains abnormal signal, and vehicle information capture end carries out vehicle information capture to directional vehicle according to abnormal signal, to travel in directional vehicle in process is monitored in real time, improve the comprehensiveness of supervision to vehicle.

Description

Technical Field

[0001] This invention belongs to the field of vehicle intelligent recognition technology, specifically a directional lane vehicle recognition system and method for law enforcement management. Background Technology

[0002] A directional lane is a dedicated lane that is designated for vehicles traveling to a specific location or direction, based on the different destinations reached by the road's preset directions. Vehicles traveling to other locations or directions are not allowed to enter this lane.

[0003] In the process of vehicle lane change recognition, the existing technology usually sets the recognition of vehicle lane change or crossing solid lines within a specific monitoring range, that is, within a designated area. This is achieved through the cooperation between electronic induction coils and radar detectors. However, the behavior of crossing solid lines during the process cannot be monitored, which can disrupt traffic order and increase the probability of road accidents. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a directional lane vehicle recognition system and method for law enforcement management, which is used to solve the aforementioned technical problem.

[0005] To achieve the above objectives, an embodiment of the first aspect of the present invention provides a directional lane vehicle recognition system for law enforcement management, comprising:

[0006] The information collection terminal is used to collect lane information of the directional lanes and transmit it to the process processing unit. The lane information includes the lane spacing and the specific distribution map of the lanes in the directional lanes.

[0007] The entrance inspection terminal is used to identify the vehicle type of the directional vehicle and transmit it to the process processing terminal. The directional vehicle refers to the vehicle that enters the directional lane. By setting up a sensing area at the entrance inspection point, the sensing area is used to obtain the lateral distance Dh and longitudinal distance Dz of the directional vehicle. Then, based on the lateral distance Dh and longitudinal distance Dz, the actual information of the directional vehicle is obtained, including the actual length, actual height and actual width of the directional vehicle.

[0008] The positioning monitoring terminal is used to monitor the driving position of directional vehicles and transmit their position information to the process processing terminal.

[0009] The process processing end is used to detect the status of the directional vehicle during the driving process. Taking the entry of the directional vehicle into the directional lane as the starting time, the distance between the directional lanes and the distance traveled by the directional vehicle are obtained every T2 time, and the deviation angle and offset angle are obtained respectively, and then transmitted to the information judgment end.

[0010] The information judgment end is used to compare and judge the deviation angle with the offset angle, obtain abnormal signals, and transmit them to the vehicle information capture end;

[0011] The vehicle information capture terminal is used to capture vehicle information from abnormal signals, including license plate numbers, the corresponding vehicle owners and their mobile phone numbers. The vehicle information capture terminal then transmits the collected vehicle information to the relevant law enforcement and regulatory departments for appropriate processing.

[0012] Preferably, the entrance inspection unit specifically includes a bottom inspection unit and a space inspection unit;

[0013] The bottom inspection unit is used to acquire the lateral spacing Dh and longitudinal spacing Dz of the directional vehicles and transmit them to the spatial inspection unit;

[0014] The spatial inspection unit is used to obtain the actual information of the directional vehicle based on the lateral spacing Dh and the longitudinal spacing Dz, respectively.

[0015] Preferably, the specific processing method of the bottom inspection unit is as follows:

[0016] S1: First, a sensing area is set at the starting position of the directional lane. A two-dimensional rectangular coordinate system is established with the lower left corner of the sensing area as the origin. A sensing device is set in the sensing area.

[0017] S2: Starting from the moment when the directional vehicle enters the sensing area, obtain the position where the directional vehicle contacts the wheels within the sensing area after time T1;

[0018] S3: First, obtain the position where a wheel contacts the sensing area, take the center point of the contact position as the contact point of the wheel at this time, and mark it as L1(X1, Y1). In the same way, obtain the contact point positions of the remaining three wheels respectively, and mark them as L2(X2, Y2), L3(X3, Y3), L4(X4, Y4), where L1 and L2 are the coordinate positions of the front wheels, L3 and L4 are the coordinate positions of the rear wheels, L1 and L3 are on the same side, and L2 and L4 are on the same side.

[0019] S4: Calculate the distance between the wheels using the formula. The distance between L1 and L2 is obtained and marked as the lateral spacing Dh. The distance between L1 and L3 is also calculated. The longitudinal spacing Dz of the directional vehicles is obtained.

[0020] Preferably, the specific processing method of the space inspection unit is as follows:

[0021] ST1: When the directional vehicle drives into the sensing area, the orientation image of the directional vehicle is acquired, which includes a frontal image and a side image.

[0022] ST2: First, select its side image, obtain the distance between the centers of the two wheels in the side image, and mark it as the virtual longitudinal spacing DXz. Then, use the formula... Obtain the first image scale B1;

[0023] ST3: Then, obtain the virtual vehicle length and virtual vehicle height of the directional vehicle in the side image, and multiply them by the first image ratio B1 to obtain the actual vehicle length and actual vehicle height of the directional vehicle.

[0024] ST4: Next, select the frontal image of the vehicle, first obtain the virtual lateral spacing DXh and virtual vehicle width in the frontal image, divide Dh by DXh to obtain the second image scale B2, and then multiply the second image scale B2 by the virtual vehicle width to obtain the actual vehicle width of the directional vehicle.

[0025] Preferably, the specific methods for obtaining the deviation angle and offset angle are as follows:

[0026] STE1: Obtain the distribution map of the spacing and total length of the directional lanes, and mark the driving position of the vehicles. Starting from the time of entering the directional lane, obtain the driving trajectory of the directional vehicles and their location every T2 time.

[0027] STE2: Starting from the location of the directional vehicle at the initial time, mark the location of the vehicle as the end point after the first T2 time. First, obtain the distance between the directional lanes based on the positions of the start and end points and mark it as DS1. Then, obtain the distance traveled by the directional vehicle in the first T2 time and mark it as DC2.

[0028] STE3: Using the formula The deviation angle α of the directional vehicle during its travel in the directional lane is obtained;

[0029] STE4: Subtract the actual width of the directional vehicles from the spacing of the directional lanes to obtain the remaining clearance YL, using the formula... The bias angle β is obtained, where λ is the threshold.

[0030] The preferred method for obtaining abnormal signals is as follows:

[0031] The deviation angle α and the corresponding offset angle β are obtained sequentially for each time period. When α < β, it means that the directional vehicle is traveling within the range of the directional lane. When α ≥ β, it means that there is an abnormal trajectory when the directional vehicle is traveling. At this time, the information judgment terminal will generate an abnormal signal.

[0032] Preferably, the entrance inspection terminal is also used to determine the vehicle's load information, and the specific determination method is as follows:

[0033] First, based on the actual information of the directional vehicle, the actual vehicle model is obtained. Then, the standard load capacity is obtained based on the actual vehicle model. Next, the actual load capacity of the directional vehicle is obtained through the pressure sensing device in the sensing area. The actual load capacity is compared with the standard load capacity. When the actual load capacity exceeds the standard load capacity, the entrance inspection terminal will generate an overload signal and transmit it to the vehicle information capture terminal.

[0034] A method for identifying vehicles in directional lanes for law enforcement management includes:

[0035] Step 1: First, set up a sensing area at the entrance inspection point. The sensing area is used to obtain the lateral spacing Dh and longitudinal spacing Dz of directional vehicles.

[0036] Step 2: Then, based on the lateral spacing Dh and the longitudinal spacing Dz, the actual information of the directional vehicles is obtained respectively;

[0037] Step 3: Starting from the moment when the directional vehicle enters the directional lane, obtain the distance between the directional lanes and the distance traveled by the directional vehicle every T2 time interval, and process them to obtain the deviation angle and the offset angle respectively;

[0038] Step 4: Compare and judge the deviation angle with the offset angle to obtain the abnormal signal, and capture vehicle information of the directional vehicle based on the abnormal signal.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: First, a sensing area is set at the entrance inspection point. The sensing area is used to acquire the lateral and longitudinal distances of directional vehicles and obtain the actual information of the directional vehicles. Taking the entry of the directional vehicle into the directional lane as the starting time, the distance between the directional lanes and the distance traveled by the directional vehicle are acquired every T2 time intervals. These are then processed to obtain the deviation angle and the offset angle. The deviation angle and the offset angle are compared and judged to obtain an abnormal signal. Based on the abnormal signal, the vehicle information of the directional vehicle is captured, and the directional vehicle in motion is monitored in real time to prevent vehicles from changing lanes during the journey. This improves the comprehensiveness of vehicle supervision and reduces the probability of road accidents. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the system framework of the present invention;

[0041] Figure 2 This is a schematic diagram of the process framework of the present invention. Detailed Implementation

[0042] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1 and Figure 2 This application provides a vehicle recognition system for directional lanes used in law enforcement management, including: an information collection terminal, an entrance inspection terminal, a positioning monitoring terminal, a process processing terminal, an information judgment terminal, and a vehicle information capture terminal;

[0044] Example 1:

[0045] The information acquisition unit is used to collect lane information of the directional lane and transmit it to the process processing unit. The lane information includes the lane spacing and the specific planning map of the lanes in the directional lane.

[0046] The entrance inspection terminal is used to identify the type of directional vehicles. Directional vehicles refer to vehicles that enter and travel in directional lanes. The entrance inspection terminal specifically includes a bottom inspection unit and a space inspection unit.

[0047] The bottom inspection unit is used to collect information on the distribution between the wheels of the directional vehicle. The specific method for acquiring this information is as follows:

[0048] S1: First, a sensing area is set at the starting position of the directional lane. A two-dimensional rectangular coordinate system is established with the lower left corner of the sensing area as the origin. A sensing device is set in the sensing area. In this embodiment, the sensing device is set as a pressure sensor. The specific sensing device is selected by relevant technical personnel according to the actual situation.

[0049] S2: Starting from the moment when the directional vehicle enters the sensing area, obtain the position where the directional vehicle contacts the wheels within the sensing area after time T1, where T1 is a preset time and its specific value is determined by relevant professionals.

[0050] S3: First, obtain the position where a wheel contacts the sensing area, take the center point of the contact position as the contact point of the wheel at this time, and mark it as L1(X1, Y1). In the same way, obtain the contact point positions of the remaining three wheels respectively, and mark them as L2(X2, Y2), L3(X3, Y3), L4(X4, Y4), where L1 and L2 are the coordinate positions of the front wheels, L3 and L4 are the coordinate positions of the rear wheels, L1 and L3 are on the same side, and L2 and L4 are on the same side.

[0051] S4: Calculate the distance between the wheels using the formula. The distance between L1 and L2 is obtained and marked as the lateral spacing Dh. The distance between L1 and L3 is also calculated. The longitudinal spacing Dz of the directional vehicles is obtained;

[0052] S5: Then the bottom inspection unit transmits the horizontal spacing Dh and the vertical spacing Dz to the spatial inspection unit;

[0053] The spatial verification unit is used to acquire images of the directional vehicle and process them to obtain the actual information of the directional vehicle, including its actual length, actual height, and actual width. The specific processing method is as follows:

[0054] ST1: When the directional vehicle drives into the sensing area, the orientation image of the directional vehicle is acquired, which includes a frontal image and a side image.

[0055] ST2: First, select its side image, obtain the distance between the centers of the two wheels in the side image, and mark it as the virtual longitudinal spacing DXz. Then, use the formula... Obtain the first image scale B1;

[0056] ST3: Then, obtain the virtual vehicle length and virtual vehicle height of the directional vehicle in the side image, and multiply them by the first image ratio B1 to obtain the actual vehicle length and actual vehicle height of the directional vehicle.

[0057] ST4: Select the front image of the vehicle, first obtain the virtual lateral spacing DXh and virtual vehicle width in the front image, divide Dh by DXh to get the second image ratio B2, and then multiply the second image ratio B2 by the virtual vehicle width to get the actual vehicle width of the directional vehicle.

[0058] The spatial inspection unit then transmits the actual information of the directional vehicle to the process processing terminal;

[0059] The positioning monitoring terminal is used to monitor the driving position of directional vehicles and transmit their position information to the process processing module;

[0060] The process processing unit is used to detect the status of the directional vehicle during its operation. The specific detection method is as follows:

[0061] STE1: Obtain the distribution map of the spacing and total length of the directional lanes, and mark the driving position of the vehicles. Starting from the time of entering the directional lane, the driving trajectory and location of the directional vehicles are obtained every T2 time. T2 is a preset value, and the specific T2 value is set by relevant professionals.

[0062] STE2: Starting from the location of the directional vehicle at the initial time, mark the location of the vehicle as the end point after the first T2 time. First, obtain the distance between the directional lanes based on the positions of the start and end points and mark it as DS1. Then, obtain the distance traveled by the directional vehicle in the first T2 time and mark it as DC2.

[0063] STE3: Using the formula The deviation angle α of the directional vehicle during its travel in the directional lane is obtained;

[0064] STE4: Subtract the actual width of the directional vehicles from the spacing of the directional lanes to obtain the remaining clearance YL, using the formula... The bias angle β is obtained, where λ is the threshold value, which is determined by relevant professionals.

[0065] STE5: The subsequent process processing end will transmit the deviation angle α and the corresponding offset angle β to the information judgment end respectively;

[0066] Then, at the second time T2, the starting and ending positions of the directional vehicle are obtained. That is, the end time of the first time T2 is taken as the start time of the second time T2. The same processing is performed on it according to the above steps STE2 to STE5 to obtain the deviation angle and the corresponding offset angle. This process is repeated to obtain the deviation angle and the corresponding offset angle for each time period and transmit them to the information judgment end.

[0067] The information judgment terminal is used to judge the driving process of directional vehicles. The specific judgment method is as follows:

[0068] The deviation angle α and the corresponding offset angle β are obtained sequentially for each time period. When α < β, it means that the directional vehicle is driving within the range of the directional lane. When α ≥ β, it means that there is an abnormal trajectory when the directional vehicle is driving. At this time, the information judgment end will generate an abnormal signal and transmit it to the vehicle information capture end.

[0069] The vehicle information capture terminal is used to capture vehicle information in abnormal signals, including license plate numbers, corresponding vehicle owners and their mobile phone numbers. The vehicle information capture terminal then transmits the collected vehicle information to the corresponding law enforcement and regulatory departments for appropriate processing.

[0070] Example 2:

[0071] Based on Embodiment 1, the entrance inspection terminal is also used to determine the vehicle's load information. The specific determination method is as follows: First, based on the actual information of the directional vehicle, the actual vehicle model is obtained. Then, based on the actual vehicle model, its standard load capacity is obtained. Afterward, through the pressure sensing device in the sensing area, the actual load capacity of the directional vehicle is obtained. The actual load capacity is compared with the standard load capacity. When the actual load capacity exceeds the standard load capacity, the entrance inspection terminal will generate an overload signal and transmit it to the vehicle information capture terminal.

[0072] The vehicle information capture device then collects the vehicle information and transmits it to the relevant management personnel.

[0073] Example 3:

[0074] Used to integrate and implement Embodiment 1 and Embodiment 2;

[0075] Example 4:

[0076] A method for identifying vehicles in directional lanes for law enforcement management, the method specifically includes the following steps:

[0077] Step 1: First, set up a sensing area at the entrance inspection point. The sensing area is used to obtain the lateral spacing Dh and longitudinal spacing Dz of directional vehicles.

[0078] Step 2: Then, based on the lateral spacing Dh and the longitudinal spacing Dz, the actual information of the directional vehicles is obtained respectively;

[0079] Step 3: Starting from the moment when the directional vehicle enters the directional lane, obtain the distance between the directional lanes and the distance traveled by the directional vehicle every T2 time interval, and process them to obtain the deviation angle and the offset angle respectively;

[0080] Step 4: Compare and judge the deviation angle with the offset angle to obtain the abnormal signal, and capture vehicle information of the directional vehicle based on the abnormal signal.

[0081] The data in the above formula are all calculated by removing the dimensions and taking the numerical values. The formula is the closest to the real situation obtained by software simulation of a large amount of collected data. The preset parameters and preset thresholds in the formula are set by those skilled in the art according to the actual situation or obtained through simulation of a large amount of data.

[0082] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A directional lane vehicle recognition system for law enforcement management, characterized in that, include: The information collection terminal is used to collect lane information of the directional lanes and transmit it to the process processing unit. The lane information includes the lane spacing and the specific distribution map of the lanes in the directional lanes. The entrance inspection terminal is used to identify the vehicle type of the directional vehicle and transmit it to the process processing terminal. The directional vehicle refers to the vehicle that enters the directional lane. By setting up a sensing area at the entrance inspection point, the sensing area is used to obtain the lateral distance Dh and longitudinal distance Dz of the directional vehicle. Then, based on the lateral distance Dh and longitudinal distance Dz, the actual information of the directional vehicle is obtained, including the actual length, actual height and actual width of the directional vehicle. The positioning monitoring terminal is used to monitor the driving position of directional vehicles and transmit their position information to the process processing terminal. The process processing end is used to detect the status of the directional vehicle during the driving process. Taking the entry of the directional vehicle into the directional lane as the starting time, the distance between the directional lanes and the distance traveled by the directional vehicle are obtained every T2 time, and the deviation angle and offset angle are obtained respectively, and then transmitted to the information judgment end. The information judgment end is used to compare and judge the deviation angle with the offset angle, obtain abnormal signals, and transmit them to the vehicle information capture end; The vehicle information capture terminal is used to capture vehicle information in abnormal signals, including license plate number, corresponding vehicle owner and mobile phone number. The vehicle information capture terminal then transmits the collected vehicle information to the corresponding law enforcement and regulatory department for appropriate processing. The specific processing method for the bottom inspection unit is as follows: S1: First, a sensing area is set at the starting position of the directional lane. A two-dimensional rectangular coordinate system is established with the lower left corner of the sensing area as the origin. A sensing device is set in the sensing area. S2: Starting from the moment when the directional vehicle enters the sensing area, obtain the position where the directional vehicle contacts the wheels within the sensing area after time T1; S3: First, obtain the position where a wheel contacts the sensing area, take the center point of the contact position as the contact point of the wheel at this time, and mark it as L1(X1,Y1). In the same way, obtain the contact point positions of the remaining three wheels respectively, and mark them as L2(X2,Y2), L3(X3,Y3), and L4(X4,Y4). Among them, L1 and L2 are the coordinate positions of the front wheels, and L3 and L4 are the coordinate positions of the rear wheels. L1 and L3 are on the same side, and L2 and L4 are on the same side. S4: Calculate the distance between the wheels using the formula. The distance between L1 and L2 is obtained and marked as the lateral spacing Dh. The distance between L1 and L3 is also calculated. The longitudinal spacing Dz of the directional vehicles is obtained; The specific processing method for the space inspection unit is as follows: ST1: When the directional vehicle drives into the sensing area, the orientation image of the directional vehicle is acquired, which includes a frontal image and a side image. ST2: First, select its side image, obtain the distance between the centers of the two wheels in the side image, and mark it as the virtual longitudinal spacing DXz. Then, use the formula... Thus, the first image scale B1 is obtained; ST3: Then, obtain the virtual vehicle length and virtual vehicle height of the directional vehicle in the side image, and multiply them by the first image ratio B1 to obtain the actual vehicle length and actual vehicle height of the directional vehicle. ST4: Next, select the frontal image of the vehicle, first obtain the virtual lateral spacing DXh and virtual vehicle width in the frontal image, divide Dh by DXh to obtain the second image scale B2, and then multiply the second image scale B2 by the virtual vehicle width to obtain the actual vehicle width of the directional vehicle.

2. The directional lane vehicle recognition system for law enforcement management according to claim 1, characterized in that, The entrance inspection unit specifically includes a bottom inspection unit and a space inspection unit; The bottom inspection unit is used to acquire the lateral spacing Dh and longitudinal spacing Dz of the directional vehicles and transmit them to the spatial inspection unit; The spatial inspection unit is used to obtain the actual information of the directional vehicle based on the lateral spacing Dh and the longitudinal spacing Dz, respectively.

3. The directional lane vehicle recognition system for law enforcement management according to claim 1, characterized in that, The specific methods for obtaining the deviation angle and offset angle are as follows: STE1: Obtain the distribution map of the spacing and total length of the directional lanes, and mark the driving position of the vehicles. Starting from the time of entering the directional lane, obtain the driving trajectory of the directional vehicles and their location every T2 time. STE2: Starting from the location of the directional vehicle at the initial time, mark the location of the vehicle as the end point after the first T2 time. First, obtain the distance between the directional lanes based on the positions of the start and end points and mark it as DS1. Then, obtain the distance traveled by the directional vehicle in the first T2 time and mark it as DC2. STE3: Using the formula The angle of deviation of the directional vehicle during its travel in the directional lane is obtained. ; STE4: Subtract the actual width of the directional vehicles from the spacing of the directional lanes to obtain the remaining clearance YL, using the formula... Obtain the offset angle ,in The threshold value is used.

4. The directional lane vehicle recognition system for law enforcement management according to claim 1, characterized in that, The method for obtaining abnormal signals is as follows: Obtain the deviation angle for each time period in sequence. and the corresponding offset angle ,when < When, it indicates that the directional vehicle is traveling within the designated lane. ≥ When this occurs, it indicates that the directional vehicle's trajectory is abnormal, and the information judgment terminal will generate an abnormal signal.

5. A directional lane vehicle recognition system for law enforcement management according to claim 1, characterized in that, The entrance inspection terminal is also used to determine the vehicle's load information. The specific determination method is as follows: First, based on the actual information of the directional vehicle, the actual vehicle model is obtained. Then, the standard load capacity is obtained based on the actual vehicle model. Next, the actual load capacity of the directional vehicle is obtained through the pressure sensing device in the sensing area. The actual load capacity is compared with the standard load capacity. When the actual load capacity exceeds the standard load capacity, the entrance inspection terminal will generate an overload signal and transmit it to the vehicle information capture terminal.

6. A method for identifying vehicles in directional lanes for law enforcement management, wherein the method is applied to any one of the vehicle identification systems of claims 1-5, characterized in that, include: Step 1: First, set up a sensing area at the entrance inspection point. The sensing area is used to obtain the lateral spacing Dh and longitudinal spacing Dz of directional vehicles. Step 2: Then, based on the lateral spacing Dh and the longitudinal spacing Dz, the actual information of the directional vehicles is obtained respectively; Step 3: Starting from the moment when the directional vehicle enters the directional lane, obtain the distance between the directional lanes and the distance traveled by the directional vehicle every T2 time interval, and process them to obtain the deviation angle and the offset angle respectively; Step 4: Compare and judge the deviation angle with the offset angle to obtain the abnormal signal, and capture vehicle information of the directional vehicle based on the abnormal signal.

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