CN111862364A - Automatic card issuing system and method for toll station - Google Patents
Automatic card issuing system and method for toll station Download PDFInfo
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- CN111862364A CN111862364A CN202010731256.5A CN202010731256A CN111862364A CN 111862364 A CN111862364 A CN 111862364A CN 202010731256 A CN202010731256 A CN 202010731256A CN 111862364 A CN111862364 A CN 111862364A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
- G06K13/08—Feeding or discharging cards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
- G06V20/54—Surveillance or monitoring of activities, e.g. for recognising suspicious objects of traffic, e.g. cars on the road, trains or boats
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/08—Detecting or categorising vehicles
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Abstract
The invention discloses an automatic card issuing system of a toll station, which comprises a vehicle management module and a card issuing module, wherein the vehicle management module comprises a recognition center, a vehicle type recognition unit and a license plate recognition unit, the recognition center is simultaneously connected with the license plate recognition unit and the vehicle type recognition unit, the license plate recognition unit and the vehicle type recognition unit both comprise cameras connected to the recognition center, and the recognition center determines license plate information and vehicle type information according to images transmitted by the cameras and transmits the license plate information and the vehicle type information to a control center of the card issuing module; the card-issuing module comprises a card-issuing unit, a mechanical arm, a detection unit, a base and a control center, wherein the card-issuing unit comprises a card outlet, the card-issuing unit is located in the base, the card outlet is located on the side face of the base, and the detection unit, the mechanical arm and the card outlet are located on the same side face of the base. The toll station vehicle information acquisition system can quickly and accurately identify vehicle information, and transmits the corresponding toll card to the position of a vehicle window through the mechanical arm, so that the card acquisition time of a driver is shortened, and road congestion of a toll station is avoided.
Description
Technical Field
The invention belongs to the field of automation equipment, and particularly relates to an automatic card issuing system and method for a toll station.
Background
At present, the high-speed toll station windows all adopt a manual card passing mode to give toll cards to drivers; because the card inside needs to contain various relevant information such as motorcycle type license plate, and some motorcycle types still need the staff manual work to judge the back, just can accurate relevant vehicle of affirmation, manual recording is to the charge card again, just can issue the card at last.
With the development of a mechanical automation process, an automatic card sender is also used for sending cards in the prior art, however, the existing automatic card sender needs a driver to take a card by himself through a card taking button, the parking distance is a little long, an arm can only extend to the position of taking the card, but the arm cannot be pressed on the card sender, the arm has to be extended or the card is taken when the driver gets the card, and the non-intelligent operation causes the card taking time of the driver to be long, and traffic jam at a toll station is easily caused.
In order to improve the card issuing and taking efficiency of the toll station, an automatic card issuing system which can automatically and quickly identify vehicle information and automatically issue cards to vehicle window positions is urgently needed to be developed.
Disclosure of Invention
The invention aims to provide an automatic toll station card issuing system and method, which can quickly and accurately identify vehicle information, transmit a corresponding toll card to a vehicle window position through a mechanical arm, shorten the card taking time of a driver and avoid road congestion of a toll station.
In order to achieve the purpose, the invention adopts the following technical scheme: an automatic card issuing system of a toll station comprises a vehicle management module and a card issuing module, wherein the vehicle management module comprises a recognition center, a vehicle type recognition unit and a license plate recognition unit, the recognition center is simultaneously connected with the license plate recognition unit and the vehicle type recognition unit, the license plate recognition unit and the vehicle type recognition unit both comprise cameras connected to the recognition center, and the recognition center determines license plate information and vehicle type information according to images transmitted by the cameras and transmits the license plate information and the vehicle type information to a control center of the card issuing module;
card module is including the hairpin unit, arm, detecting element, base and the control center who contains out the bayonet socket, the hairpin unit is located the inside of base, and go out the bayonet socket and be located on the side of base, detecting element, arm and play bayonet socket are located on the same side of base, detecting element is used for detecting the door window position of vehicle to detect information transmission to control center, control center basis the information of vehicle management module transmission is write in the card in the hairpin unit, and will write in card output after to going out the bayonet socket, simultaneously control center control arm will go out the card transmission of bayonet socket to the door window position.
Furthermore, the license plate recognition unit comprises an inlet camera and an outlet camera, and the vehicle type recognition unit comprises a vehicle type recognition camera positioned at an inlet of the card issuing system; the identification center obtains license plate information B according to the license plate image shot by the inlet camera, the identification center obtains license plate information A according to the license plate image shot by the outlet camera, and the identification center obtains vehicle type information D according to the vehicle image shot by the vehicle type identification camera; and the identification center determines accurate license plate information C according to the license plate information B and the license plate information A, and transmits the license plate information C and the vehicle type information D to the control center of the card issuing module.
Further, the recognition center adopts a self-adaptive intelligent checking and matching algorithm to obtain accurate license plate information C.
Further, the card issuing module is positioned between the inlet camera and the outlet camera; the vehicle type recognition camera is positioned in front of the inlet camera.
Further, the included angle between the view center line of the vehicle type identification camera and the lane is an arbitrary value between 80 degrees and 100 degrees.
Furthermore, the card issuing unit also comprises an intelligent diagnosis subunit, the intelligent diagnosis subunit is simultaneously connected with the identification center, the control center and the remote server, and the remote server can judge the running state of the automatic card issuing system through the intelligent diagnosis subunit.
Further, the detecting unit comprises a height camera and an ultrasonic distance meter which are located on the side edge of the base, the control center determines the height of the car window according to a car image shot by the height camera, and the control center judges the distance from the car window to the base according to the distance detected by the ultrasonic distance meter.
A method for issuing cards by an automatic card issuing system of a toll station comprises the following steps:
s01: when a vehicle enters a toll station, the recognition center obtains license plate information B according to a license plate image shot by an inlet camera, and the recognition center obtains vehicle type information D according to a vehicle image shot by a vehicle type recognition camera;
s02: the vehicle stops when running to one side of the card issuing module, the recognition center obtains license plate information A according to a license plate image shot by the outlet camera, the recognition center determines accurate license plate information C according to the license plate information B and the license plate information A, and transmits the license plate information C and the vehicle type information D to the control center of the card issuing module;
s03: the detection unit detects the height of the vehicle window and the distance between the vehicle window and the base; the control center writes the card in the card issuing unit according to the information transmitted by the identification center and outputs the written card to the card outlet;
s04: and the control center controls the mechanical arm to transmit the card out of the bayonet to the position of the vehicle window according to the detection result of the detection unit, and the vehicle exits the toll station.
Further, in the step S01, an included angle between the center line of the field of view of the recognition camera and the lane is an arbitrary value between 80 degrees and 100 degrees, when the vehicle travels into the field of view of the recognition camera, the recognition camera shoots M frames of images and transmits the M frames of images to the recognition center, and the recognition center splices the side view of the vehicle according to the M frames of images and obtains the vehicle type information according to the side view of the vehicle.
Further, the step of determining the accurate license plate information C and the accurate vehicle type information D by the recognition center in step S02 is as follows:
s021: the identification center acquires accurate license plate information C by adopting a self-adaptive intelligent checking and matching algorithm according to the license plate information A and the license plate information B;
s022: and the recognition center checks the license plate information C and the vehicle type information.
The invention has the following beneficial effects: the identification center determines accurate vehicle information by the inlet camera and the outlet camera and combining the vehicle type identification unit, thereby avoiding manual errors and improving the data accuracy; according to the invention, the position of the car window is determined through the detection unit, and the mechanical arm is adopted to replace manual card issuing, so that a driver can easily take the card, the unmanned high-speed toll station can be improved, and the labor cost of an enterprise is reduced; the identification center and the control center can start working before the vehicle enters the toll station, can quickly and accurately input the toll card information and send the toll card information to the driver, effectively shortens the card taking time and waiting time of the driver, and further greatly improves the lane passing efficiency.
Drawings
FIG. 1 is an overall schematic view of an automatic card issuing system of the present invention;
FIG. 2 is a schematic structural diagram of a card issuing module according to the present invention;
FIG. 3 is a flow chart of a card issuing process of the present invention.
In the figure: 1 hairpin unit, 2 arms, 3 bases, 5 intelligent diagnosis subunits, 11 play bayonets, 41 high cameras, 42 ultrasonic range finder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The automatic card issuing system for the toll station comprises a vehicle management module and a card issuing module, wherein the vehicle management module comprises a recognition center, a vehicle type recognition unit and a license plate recognition unit, the recognition center is connected with the license plate recognition unit and the vehicle type recognition unit at the same time, the license plate recognition unit and the vehicle type recognition unit both comprise cameras connected to the recognition center, and the recognition center determines license plate information and vehicle type information according to images transmitted by the cameras and transmits the license plate information and the vehicle type information to a control center of the card issuing module.
As shown in fig. 1, in the present invention, toll islands are disposed on two sides of a toll station lane, and in order to further ensure the accuracy of license plate recognition of the present invention, a license plate recognition unit includes 1 entrance camera and one or more exit cameras, wherein the number of the entrance cameras may be 1, and the number of the exit cameras may be one or more, and the number of the exit cameras may be one or two of the toll stations. In the attached figure 1, two outlet cameras are arranged to increase the accuracy of license plate recognition. The identification center obtains license plate information B according to the license plate image shot by the inlet camera, the image shot by the inlet camera is transmitted to the identification center in the driving process before the vehicle enters the toll station, and the identification center calculates the image shot by the inlet camera to obtain the license plate information B. The identification center obtains license plate information A according to the license plate image shot by the exit camera, when the vehicle enters the toll station and stops waiting for card receiving, the image shot by the exit camera is transmitted to the identification center, and the identification center calculates the image shot by the exit camera to obtain the license plate information A. According to the invention, the entrance camera and the exit camera adopt side shooting angles to obtain side images of vehicles entering a toll station, and the side images can include but are not limited to images of license plate positions; and identifying license plate information according to the side image.
With reference to fig. 1, the vehicle type identification unit includes a vehicle type identification camera located at an entrance of the card issuing system, and the card issuing module is located between the entrance camera and the exit camera; the vehicle type identification camera is located in front of the entrance camera, namely, before the entrance camera, the vehicle enters the field of view of the vehicle type identification camera. An anti-collision bucket can be arranged between the inlet camera and the vehicle type recognition camera. The position of the vehicle type recognition camera can be adjusted, as shown in figure 1, the distance between the vehicle type recognition camera and the entrance camera can be set to be 4 meters, the distance between the vehicle type recognition camera and the exit camera can be set to be 24 meters, and the position of the vehicle type recognition camera can also be adjusted according to the actually tested distance.
The included angle between the visual field center line of the vehicle type identification camera and the lane is an arbitrary value between 80 degrees and 100 degrees, namely the visual field center line of the vehicle type identification camera is basically vertical to the lane, the vehicle type identification camera is positioned on one side of the lane, the visual field of the vehicle type identification camera cannot cover the side face of the whole vehicle, M is required to shoot images to splice complete images, and M is an integer greater than 0.
The recognition center splices a complete vehicle side map according to the vehicle speed value and the positions of the vehicle head, the vehicle body and the vehicle tail, when splicing, an image of the vehicle head position is taken as a splicing start, an image of the vehicle tail position is taken as a splicing end, then the repeated parts among the same characteristic points are covered by combining the vehicle running speed and the shooting frame rate of the camera, the same characteristic points are taken as bridges, and a splicing subunit splices the vehicle side map from the vehicle head to the vehicle tail; and splicing the side views of the vehicles from the head to the tail of the vehicle by the splicing subunit. The characteristic points are positioned on the same side of the vehicle, and the distances from the side to the camera are equal everywhere; only by ensuring that the positions of the characteristic points in each image used for splicing the images in the actual vehicle are the same as the depth of field of the camera, the spliced images can be ensured to be complete and not deformed. The reason is that in the process of changing the two-dimensional plane graph from the three-dimensional structure of the vehicle to the image, only the characteristic points on the same side face at the same depth position with the camera can be used as a spliced bridge, and the spliced image can accurately reflect the shape of the vehicle.
The recognition center determines the axle information, the driver information and the preliminary type (passenger car, truck or special car, etc.) of the vehicle according to the side view of the vehicle, and then synthesizes the information to obtain the license plate information D. Compared with the method in the prior art that the vehicle type identification camera is positioned at the side of the vehicle and only one frame of side image is shot for vehicle type identification, the method can more accurately obtain the panoramic image of the side of the vehicle and further more accurately obtain the vehicle type information.
At the moment, the recognition center obtains license plate information B, license plate information A and vehicle type information D, and the recognition center control center obtains accurate license plate information C according to the license plate information A and the license plate information B by adopting a self-adaptive intelligent checking and matching algorithm; the identification center compares and verifies the license plate information C and the vehicle type information D, and the verification process is as follows: firstly, judging whether license plate information C and vehicle type information D are output in the period of time, and if both license plate information C and vehicle type information D are output, binding the license plate information C and the vehicle type information D; secondly, if the license plate obtained from the license plate information C identification result comprises colors and characters, the type of the vehicle is obviously different from that of the license plate information D according to the license plate big data statistical rule, for example, the license plate information C is a yellow plate, and the vehicle type information D is a passenger vehicle or a cargo vehicle I; at the moment, ignoring the vehicle type recognition result, determining the vehicle type according to the axle of the vehicle, specifically, if the axle is less than or equal to 2, uniformly judging that the vehicle type is a second cargo; if the axle is equal to 3, uniformly judging that the vehicle type is cargo three; if the axle is equal to 4, uniformly judging that the vehicle type is cargo four; if the axle is equal to 5, uniformly judging that the vehicle type is cargo five; if the axle is larger than 6, the vehicle type is judged to be six goods in a unified way. The axle here refers to the number of rows of the vehicle. For another example, if the license plate characters have special car characters, the vehicle type information needs to be identified by the special car.
If the license plate information C is output but the vehicle type information D is not output, a user needs to look into the license plate B; if the number of the entrance license plates B is not increased again in the time period, the exit license plates A1 are repeated, the license plates need to be corrected again, namely, the entrance license plate information A and the exit license plate information B are fed back to the control center again for correction, the license plate information C is assigned again, and the number is regarded as no vehicle processing; if the number of the entrance license plates B in the time period is increased newly, the vehicle type information D is indicated to be corresponding to the missing vehicle, the vehicle type needs to be corrected again, the vehicle type identification is carried out again, the comparison is carried out again, and if the vehicle type information can not be identified again, the vehicle type information D of the vehicle is obtained according to the color and the characters of the license plates and the statistical rule of the large license plate data. The time period in this step refers to a time period during which the vehicle passes between the entrance camera and the exit camera.
If vehicle type information D is output but no vehicle type information C is output, the exit vehicle license A needs to be seen, if the number of the exit vehicle license A in the time period is not increased, repeated recognition of the vehicle corresponding to the vehicle type information D is described, the vehicle type recognition is judged to be invalid, if the number of the exit vehicle license A in the time period is increased, the vehicle leakage phenomenon of the exit vehicle license B is described, the vehicle license information needs to be corrected again, namely, the entry vehicle license information A and the exit vehicle license information B are fed back to the control center again for correction, the vehicle license information C is assigned again, and the vehicle license information C and the vehicle type information D after being assigned again are bound. The time period in this step refers to a time period during which the vehicle passes between the entrance camera and the exit camera.
Referring to fig. 2, the card issuing module includes a card issuing unit 1 including a card outlet 11, a mechanical arm 2, a detection unit, a base 3 and a control center, the card issuing unit 1 is located inside the base, the card outlet 11 is located on a side surface of the base, the detection unit, the mechanical arm 2 and the card outlet 11 are located on the same side surface of the base 3, the detection unit is located on a side surface edge of the base close to a vehicle for detecting a window position of the vehicle and transmitting detection information to the control center, the mechanical arm 2 is located between the detection unit and the card outlet 11 for transmitting a card coming out of the card outlet 11 to the window position, and the mechanical arm 2 needs to drive the card to move up, down, left and right, so that a mechanical arm with three rotating assemblies is adopted, and any mechanical arm including three rotating assemblies in the prior art can be used in the present invention.
The detection unit comprises a height camera 41 and an ultrasonic distance meter 42 which are positioned on the side edge of the base, the control center determines the height of the car window according to the car image shot by the height camera 41, and the control center judges the distance from the car window to the base according to the distance detected by the ultrasonic distance meter 42. Preferably, the height and other positions of the vehicle window can be more accurately determined by simultaneously shooting images by two cameras with different heights. The ultrasonic distance measuring instrument and the height camera are arranged at different heights in a crossed mode, the ultrasonic distance measuring instrument is used for measuring the distance between the car window and the base and transmitting the distance to the control center, and the control center controls the mechanical arm to transmit the card at the card sending position to the car window position according to the distance between the car window and the base and the distance between the mechanical arm and the side edge of the card outlet and the side edge of the base.
The card issuing unit also comprises a card reader, and the card outlet accessory is provided with a card reader-writer for reading and writing the card at the card outlet. Preferably, the number of the card issuing units can be multiple, each card issuing unit corresponds to one card outlet and one card reader-writer, different card issuing units correspond to different vehicle types, as shown in fig. 2, the number of the card issuing units is 4, the card issuing units are respectively located at different heights of the base, and cards in each card issuing unit correspond to different vehicle types. And the control center controls the mechanical arm to reach the card outlet of the corresponding vehicle type and the like to take the card according to the information of different vehicle types. The card reader is connected with the control center, the control center writes the card according to the license plate information and the vehicle type information obtained by the recognition center, and the written card is sent out through the card outlet. Meanwhile, the detection unit transmits detection information to the control center, and the control center controls the mechanical arm to transmit the card out of the bayonet to the position of the car window according to the detection information.
The card issuing unit also comprises an intelligent diagnosis subunit 5 which is simultaneously connected with the identification center, the control center and the remote server, and the remote server can judge the running state of the automatic card issuing system through the intelligent diagnosis subunit. The working personnel can know the running state of the automatic card issuing system in real time through the remote server, and the monitoring and the maintenance are convenient.
As shown in fig. 3, the method for issuing the card by the automatic card issuing system of the toll station disclosed by the invention comprises the following steps:
s01: and when the vehicle enters the toll station, the recognition center obtains license plate information B according to the license plate image shot by the entrance camera, and the recognition center obtains vehicle type information according to the vehicle image shot by the vehicle type recognition camera.
Specifically, in step S01, the included angle between the visual field center line of the recognition camera and the lane is an arbitrary value between 80 degrees and 100 degrees, when the vehicle travels to the visual field of the recognition camera, the recognition camera shoots M frames of images and transmits the M frames of images to the recognition center, the recognition center splices a vehicle side view according to the M frames of images, and obtains vehicle type information D according to the vehicle side view, specifically, the axle information, the vehicle length information, and the preliminary type (passenger car, truck, special car, etc.) of the vehicle are determined according to the vehicle side view, and then the vehicle license plate information D is obtained by integrating the information.
S02: the vehicle runs to one side of the card issuing module and stops, the recognition center obtains license plate information A according to the license plate image shot by the outlet camera, and the recognition center transmits the license plate information C and vehicle type information D to the control center of the card issuing module according to the license plate information B and the license plate information C with accuracy of the license plate information A.
The process of determining the accurate license plate information C by the recognition center in step S02 is as follows: the number of license plate images acquired by the inlet camera is greater than or equal to the number of license plate images returned by the outlet camera, for example, license plate information B comprises license plate information B1 and license plate information B2, and license plate information A comprises license plate information A1, license plate information A2 and license plate information A3;
if the license plate information B1 is consistent with the license plate information A1, and the license plate information B2 is consistent with the license plate information A2, the license plate information C is consistent with the license plate information B1;
if the license plate information B1 is consistent with the license plate information A1, and the license plate information B2 is consistent with the license plate information A3, the license plate information A2 is a repeated recognition result, and the license plate information C is consistent with the license plate information B1;
if the license plate information B1 is consistent with the license plate information A2, and the license plate information B2 is consistent with the license plate information A3, the license plate information A1 is a repeated recognition result, and the license plate information C is consistent with the license plate information B1;
if only the license plate information B2 is consistent with the license plate information A1, the license plate information B1 is a repeated recognition result, and the license plate information C is consistent with the license plate information B2;
if only the license plate information B1 is consistent with the license plate information A1, it is indicated that a missing vehicle appears behind the license plate information A1, the license plate information C of the current vehicle is consistent with the license plate information B1, and the license plate information C of the next vehicle is consistent with the license plate information B2.
Further, the license plate information C and the vehicle type information D can be further compared and verified, and the verification process is as described above and will not be described repeatedly herein.
S03: when the vehicle runs to one side of the card issuing module and stops, the vehicle type information is transmitted to the control center, and the control center controls the mechanical arm to reach the card outlet of the corresponding vehicle type; the detection unit detects the height of the vehicle window and the distance between the vehicle window and the base; and the control center writes the cards in the corresponding card issuing units according to the license plate information and the vehicle type information transmitted by the identification center and outputs the written cards to the card outlet.
S04: and the control center controls the mechanical arm to transmit the card out of the bayonet to the position of the vehicle window according to the detection result of the detection unit, and the mechanical arm resets after the card is taken away, so that the vehicle exits from the toll station.
The identification center determines accurate vehicle information by the inlet camera and the outlet camera and combining the vehicle type identification unit, thereby avoiding manual errors and improving the data accuracy; according to the invention, the position of the car window is determined through the detection unit, and the mechanical arm is adopted to replace manual card issuing, so that a driver can easily take the card, the unmanned high-speed toll station can be improved, and the labor cost of an enterprise is reduced; the identification center and the control center can start working before the vehicle enters the toll station, can quickly and accurately input the toll card information and send the toll card information to the driver, effectively shortens the card taking time and waiting time of the driver, and further greatly improves the lane passing efficiency.
The above description is only a preferred embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, so that all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be included in the scope of the appended claims.
Claims (10)
1. An automatic card issuing system of a toll station is characterized by comprising a vehicle management module and a card issuing module, wherein the vehicle management module comprises a recognition center, a vehicle type recognition unit and a license plate recognition unit, the recognition center is simultaneously connected with the license plate recognition unit and the vehicle type recognition unit, the license plate recognition unit and the vehicle type recognition unit both comprise cameras connected to the recognition center, and the recognition center determines license plate information and vehicle type information according to images transmitted by the cameras and transmits the license plate information and the vehicle type information to a control center of the card issuing module;
card module is including the hairpin unit, arm, detecting element, base and the control center who contains out the bayonet socket, the hairpin unit is located the inside of base, and go out the bayonet socket and be located on the side of base, detecting element, arm and play bayonet socket are located on the same side of base, detecting element is used for detecting the door window position of vehicle to detect information transmission to control center, control center basis the information of vehicle management module transmission is write in the card in the hairpin unit, and will write in card output after to going out the bayonet socket, simultaneously control center control arm will go out the card transmission of bayonet socket to the door window position.
2. The automatic card issuing system of the toll station according to claim 1, wherein the license plate recognition unit comprises an inlet camera and an outlet camera, and the vehicle type recognition unit comprises a vehicle type recognition camera positioned at the inlet of the card issuing system; the identification center obtains license plate information B according to the license plate image shot by the inlet camera, the identification center obtains license plate information A according to the license plate image shot by the outlet camera, and the identification center obtains vehicle type information D according to the vehicle image shot by the vehicle type identification camera; and the identification center determines accurate license plate information C according to the license plate information and the license plate information A, and transmits the license plate information C and the vehicle type information D to the control center of the card issuing module.
3. The automatic card issuing system of the toll station as claimed in claim 2, wherein said identification center adopts adaptive intelligent checking matching algorithm to obtain accurate license plate information C.
4. The automatic card issuing system of toll booth according to claim 2, wherein said card issuing module is located between said entrance camera and exit camera; the vehicle type recognition camera is positioned in front of the inlet camera.
5. The automatic card issuing system of the toll booth according to claim 4, wherein the included angle between the center line of the field of view of the vehicle type identification camera and the lane is any value between 80 degrees and 100 degrees.
6. The automatic card issuing system of toll booth according to claim 1, wherein said card issuing unit further comprises a smart diagnosis subunit, said smart diagnosis subunit is connected to an identification center, a control center and a remote server, said remote server can determine the operation status of the automatic card issuing system through said smart diagnosis subunit.
7. The automatic card issuing system of the toll station is characterized in that the detection unit comprises a height camera and an ultrasonic distance meter which are positioned at the side edge of the base, the control center determines the height of the car window according to the image of the car shot by the height camera, and the control center judges the distance from the car window to the base according to the distance detected by the ultrasonic distance meter.
8. A method for issuing cards by an automatic card issuing system of a toll station is characterized by comprising the following steps:
s01: when a vehicle enters a toll station, the recognition center obtains license plate information B according to a license plate image shot by an inlet camera, and the recognition center obtains vehicle type information D according to a vehicle image shot by a vehicle type recognition camera;
s02: the vehicle stops when running to one side of the card issuing module, the recognition center obtains license plate information A according to a license plate image shot by the outlet camera, the recognition center determines accurate license plate information C according to the license plate information B and the license plate information A, and transmits the license plate information C and the vehicle type information D to the control center of the card issuing module;
s03: the detection unit detects the height of the vehicle window and the distance between the vehicle window and the base; the control center writes the card in the card issuing unit according to the information transmitted by the identification center and outputs the written card to the card outlet;
s04: and the control center controls the mechanical arm to transmit the card out of the bayonet to the position of the vehicle window according to the detection result of the detection unit, and the vehicle exits the toll station.
9. The method for issuing the card by the automatic card issuing system of the toll booth according to claim 8, wherein the angle between the center line of the field of view of the recognition camera and the lane is any value between 80 degrees and 100 degrees in step S01, when the vehicle drives to the field of view of the recognition camera, the recognition camera takes M frames of images and transmits the M frames of images to the recognition center, and the recognition center splices the side view of the vehicle according to the M frames of images and obtains the vehicle type information D according to the side view of the vehicle.
10. The method for issuing the card by the automatic card issuing system of the toll station as claimed in claim 8, wherein the step of the identification center determining the accurate license plate information C and the accurate vehicle type information D in step S02 is as follows:
s021: the identification center acquires accurate license plate information C by adopting a self-adaptive intelligent checking and matching algorithm according to the license plate information A and the license plate information B;
s022: and the recognition center checks the license plate information C and the vehicle type information D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731256.5A CN111862364A (en) | 2020-07-27 | 2020-07-27 | Automatic card issuing system and method for toll station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010731256.5A CN111862364A (en) | 2020-07-27 | 2020-07-27 | Automatic card issuing system and method for toll station |
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| Publication Number | Publication Date |
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| CN111862364A true CN111862364A (en) | 2020-10-30 |
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Cited By (1)
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| CN114770547A (en) * | 2022-05-13 | 2022-07-22 | 安徽对称轴智能安全科技有限公司 | Epidemic prevention mechanical arm and path planning and epidemic prevention detection method |
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