Vehicle body code information acquisition system and acquisition method thereof

Abstract

The invention relates to the technical field of automobile body code information acquisition, in particular to an automobile body code information acquisition system and method, and the system comprises a visual recognition and control module, an image acquisition module, an automobile body code queue management module and an alarm module. According to the system and the method, the defects that in the prior art, time and labor are consumed by manually judging the quality of an image and a vin code in the image, and wrong images or unqualified vehicles can flow out due to judgment errors are overcome; according to the method, the vehicle body code queue management module identifies the characters of the vehicle body, compares the identified characters with the vin codes recorded by the vehicle body code queue management module, uploads the image or triggers the alarm according to the comparison result, saves more time and manpower compared with a manual naked eye judgment mode, can ensure that the vin codes engraved by the vehicle in the image are consistent with the vin codes recorded by the vehicle body code queue management module, and improves the accuracy of the vehicle body code queue management. Therefore, wrong images or unqualified vehicles are prevented from flowing out.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile identification code image acquisition, and more specifically, to a vehicle body code information acquisition system and an acquisition method thereof. Background Art

[0002] The vehicle VIN code is the vehicle identification number set on the car body. It is the unique identification of each car and is used to identify the manufacturer, model, year of production and production location of the vehicle. After the car is produced, the VIN code information of the qualified car and the image of the place where the VIN code is engraved on the car body need to be sent to the vehicle information management system for registration. In this way, when the car is registered, only the image needs to be compared with the actual vehicle. If the two are consistent, it means that the quality of the vehicle is qualified and the vehicle to be registered can be exempted from inspection.

[0003] In the prior art, before uploading the image to the vehicle information management system, it is necessary to manually use a special camera to take a photo of the VIN code on the vehicle body. To this end, it is necessary to ensure that the content of the photographed picture is strictly consistent with the actual vehicle body, otherwise the vehicle cannot be registered. Before uploading the image to the designated system, it is necessary to manually judge with the naked eye whether the quality of the image is qualified and whether the VIN code is contaminated or has problems with the engraving quality. If the image is blurry or the VIN code in the image is unclear, the person will return to retake the image; and if the VIN code is contaminated or has problems with the engraving quality, the corresponding vehicle will be returned for repair. After confirming that the image quality is qualified and the engraving quality of the VIN code in the image is qualified, the person will manually upload the image to the designated system, and finally send the images in the system to the vehicle information management system for registration.

[0004] However, there are many shortcomings in the method of manual judgment. First, manual judgment of images consumes a lot of time and energy, and is inefficient; second, there are many uncertainties in the use of manual judgment of image quality and VIN code engraving quality, which may lead to misjudgment, resulting in the outflow of wrong images or vehicles with unqualified VIN code engraving quality. Third, when taking and uploading images, the vehicles may be confused and the wrong vehicle may be photographed, thereby uploading the image of the current vehicle to the folder of other vehicles, making the image inconsistent with the actual vehicle body, and ultimately resulting in the vehicle being unable to be registered. Fourth, new staff members need to undergo training when they take up their posts, which also consumes a lot of time and manpower. Summary of the invention

[0005] In view of the problem that the manual judgment of the quality of the image and the VIN code in the image in the above-mentioned prior art is time-consuming and labor-intensive, and may result in misjudgment and cause the outflow of erroneous images or unqualified vehicles, the present invention provides a vehicle body code information acquisition system and its recognition method, which can replace manual inspection of images, reduce the investment of time and manpower, and avoid the outflow of erroneous images or unqualified vehicles.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0007] A vehicle body code information acquisition system includes a visual recognition and control module, an image acquisition module, a vehicle body code queue management module and an alarm module respectively connected to the visual recognition and control module by signal; the visual recognition and control module is used to recognize characters in an image and determine whether the characters are consistent with the vin code information; the image acquisition module is used to acquire images; the vehicle body code queue management module is used to store the vehicle vin code queue and send the vin code to the visual recognition and control module in the queue order. The vin code arrangement order of the vin code queue stored in the vehicle body code queue management module is the same as the order of the cars entering the venue to be photographed. The signal connection can be an electrical connection or a wireless signal connection.

[0008] When the above technical solution is implemented, the body code queue management module first stores the vin code queue; then the image acquisition module first acquires the image of the place where the vin code is engraved on the car body, and then transmits the image to the visual recognition and control module; the visual recognition and control module recognizes the characters in the image and sends a signal to the body code queue management module at the same time; after receiving the signal, the body code queue management module selects a vin code from the stored vin code queue and sends it to the visual recognition and control module; finally, the visual recognition and control module compares the recognized characters with the vin code sent by the body code queue management module. If the two are consistent, it means that the vin code in the image is not If the vehicle is contaminated, and the VIN code printed on the actual vehicle body is consistent with the recorded VIN code, and there is no quality problem, in this case, the visual recognition and control module uploads the image to the designated system. It can be understood that the designated system is an external system for managing images; if the two are inconsistent, it means that the image may be unclear, the VIN code on the vehicle body is contaminated, there is a quality problem with the VIN code on the vehicle body, or the image acquisition module did not shoot the vehicle in sequence and took the wrong vehicle. In this case, the visual recognition and control module will send a signal to the alarm module, and the alarm module will issue an alarm to remind people to check the image and confirm the cause of the alarm. The visual recognition and control module recognizes the characters in the image and compares the recognized characters with the recorded VIN code, which can ensure that the VIN code printed on the vehicle is consistent with the VIN code recorded by the vehicle body code queue management module, thereby avoiding the outflow of wrong images or unqualified vehicles.

[0009] Preferably, a pre-inspection module is further included, and the image acquisition module and the visual recognition and control module are respectively connected to the pre-inspection module by signal. The pre-inspection module can first receive the image acquired by the image acquisition module, then check the quality problems in the image, and then send the image to the visual recognition and control module after the inspection is correct, so that unqualified images can be pre-screened and the processing burden of the visual recognition and control module can be reduced.

[0010] If the image acquisition module just captures the image of other vehicles, and the visual recognition and control module may recognize the wrong characters due to image problems or VIN code engraving problems when recognizing the characters in the image, so that the characters finally recognized are consistent with the VIN code sent by the vehicle body code queue management module, this will cause the image to not match the actual vehicle photographed. Therefore, preferably, a scanner is also included, the scanner is used to read the barcode information on the vehicle body, and the scanner is connected to the visual recognition and control module signal. A barcode is attached to the body of each car, and each barcode corresponds to a VIN code. During implementation, the scanner can scan the barcode on the vehicle body and read the VIN code corresponding to the barcode, and then send the read VIN code to the visual recognition and control module, the visual recognition and control module compares the characters recognized in the image, the VIN code corresponding to the vehicle body barcode and the VIN code sent by the vehicle body code queue management module, if the three are consistent, it means that the image collected by the image acquisition module is completely consistent with the vehicle. The error rate can be further reduced by setting a scanner.

[0011] Preferably, it also includes a body conveyor line and a line controller, the body conveyor line is connected to the line controller by signal, and the line controller is connected to the visual recognition and control module by signal. The body conveyor line is used to convey the car body so that the car enters the site in a certain order for image capture. While the visual recognition and control module sends a signal to the alarm module, it can also send a signal to the line controller, and the line controller then controls the body conveyor line to suspend conveying, thereby avoiding confusion in subsequent processes and ensuring the smoothness and efficiency of the entire process.

[0012] Preferably, a user interface module is further included, and the visual recognition and control module, the vehicle body code queue management module and the alarm module are respectively connected to the user interface module by signal. Setting up the user interface module can facilitate the staff to view the recognition results of the visual recognition and control module, directly input the VIN code into the vehicle body code queue management module, and intuitively view the alarm status of the alarm module.

[0013] The present invention also provides a vehicle body code information collection method, which is applied to the above-mentioned vehicle body code information collection system, and comprises the following steps:

[0014] Step S1: The vehicle body code queue management module receives and stores the VIN code queue.

[0015] Step S2: The image acquisition module acquires an image and then sends the image to the visual recognition and control module; then proceed to step S3.

[0016] Step S3: the visual recognition and control module recognizes the characters in the image; at the same time, the visual recognition and control module sends a request queue signal to the vehicle body code queue management module; and the process proceeds to step S4.

[0017] Step S4: After receiving the signal, the vehicle body code queue management module determines whether all the vin code queues are marked as acquired. If so, it proceeds to step S6; otherwise, it sends the first vin code that has not been acquired in the vin code queue to the visual recognition and control module; and proceeds to step S5.

[0018] Step S5: The visual recognition and control module compares the character with the first VIN code that has not been acquired to determine whether the two are consistent. If so, the visual recognition and control module uploads the image to the designated system and sends a signal to the vehicle body code queue management module. After receiving the signal, the vehicle body code queue management module marks that the current VIN code has been acquired, and then enters step S6; otherwise, the visual recognition and control module sends a signal to the alarm module, and the alarm module issues an alarm after receiving the signal, and then enters step S6.

[0019] Step S6: End.

[0020] The principle and process of the above method have been explained above and will not be repeated here.

[0021] Preferably, in step S2, after the image acquisition module acquires the image, it first sends the image to the pre-inspection module, and the image pre-inspection module determines whether there are any characters missing, upside down, blurred, double-imaged, tilted or offset in the image. If so, the image pre-inspection module sends a signal to the alarm module to make the alarm module sound an alarm, and then enters step S6; otherwise, the image pre-inspection module sends the image to the visual recognition and control module, and then enters step S3.

[0022] Preferably, in step S3, the scanner scans the barcode on the vehicle body and reads the VIN code information corresponding to the barcode, and then sends it to the visual recognition and control module. The visual recognition and control module compares the characters, the unmarked first VIN code and the VIN code corresponding to the barcode to determine whether the three are consistent. If so, the image is uploaded to the designated system and a signal is sent to the vehicle body code queue management module, and then the process proceeds to step S4. Otherwise, a signal is sent to the alarm module to make the alarm module sound an alarm, and then the process proceeds to step S6.

[0023] Preferably, in step S1, a waiting time is also set; in step S3, after the scanner scans the barcode on the vehicle body and sends the VIN code corresponding to the barcode to the visual recognition and control module, the visual recognition and control module determines whether the image sent by the image pre-inspection module has been received after the waiting time. If so, the visual recognition and control module recognizes the characters in the image again; otherwise, the visual recognition and control module directly sends a signal to the alarm module to make the alarm module sound an alarm, and then enters step S6.

[0024] Preferably, in step S4, when the visual recognition and control module sends a signal to the alarm module, it also sends a signal to the line controller, and the line controller controls the body conveyor line to suspend the conveyance of the vehicle after receiving the signal. It is understandable that if the visual recognition and control module 1 has not received the image after the waiting time, it means that the staff may have left the workstation and failed to turn on the image acquisition module 2 in time. At this time, the alarm module 4 can be triggered to remind the on-site staff to suspend the conveyance of the body conveyor line first.

[0025] The beneficial effects of the present invention are as follows: the characters in the image are identified by the visual recognition and control module, and the identified characters are compared with the VIN code recorded by the vehicle body code queue management module, and then the image is uploaded or an alarm is triggered according to the comparison result, which saves more time and manpower than the method of manual naked eye judgment, and can ensure that the VIN code engraved on the vehicle in the image is consistent with the VIN code recorded by the vehicle body code queue management module, thereby avoiding the outflow of erroneous images or unqualified vehicles; using a scanner to scan the barcode on the vehicle body, the VIN code corresponding to the barcode is compared with the characters identified by the image and the VIN code recorded by the vehicle body code queue management module, which can ensure that the image is consistent with the actual vehicle body, and greatly reduce the error rate of information collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a vehicle body code information collection system;

[0027] Figure 2The present invention is a flow chart of a vehicle body code information collection method.

[0028] In the attached figure: 1- visual recognition and control module; 2- image acquisition module; 3- vehicle body code queue management module; 4- alarm module; 5- pre-inspection module; 6- scanner; 7- vehicle body conveyor line; 8- line controller. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0030] Example 1

[0031] This embodiment is the first embodiment of a vehicle body code information acquisition system, which includes a visual recognition and control module 1 and an image acquisition module 2, a vehicle body code queue management module 3 and an alarm module 4 respectively connected to the visual recognition and control module 1 by signal; an external designation system is connected to the visual recognition and control module 1 by signal, and the visual recognition and control module 1 is used to recognize characters in an image and determine whether the characters are consistent with the vin code information; the image acquisition module 2 is used to acquire images; the vehicle body code queue management module 3 is used to store the vehicle vin code queue and send the vin code to the visual recognition and control module 1 according to the queue order. The arrangement order of the vin codes in the vin code queue stored in the vehicle body code queue management module 3 is the same as the order of the cars to be photographed. Among them, the signal connection can be an electrical connection or a wireless signal connection.

[0032] Furthermore, it also includes a pre-inspection module 5, and the image acquisition module 2 and the visual recognition and control module 1 are respectively connected to the pre-inspection module 5 by signal. The pre-inspection module 5 can first receive the image acquired by the image acquisition module 2, and then check the quality problems existing in the image, and then send the image to the visual recognition and control module 1 after the inspection is correct, so that unqualified images can be pre-screened, reducing the processing burden of the visual recognition and control module 1.

[0033] If the image acquisition module 2 just acquires the image of other vehicles, and the visual recognition and control module 1 may recognize the wrong characters due to image problems or VIN code engraving problems when recognizing the characters in the image, so that the characters finally recognized are consistent with the VIN code sent by the vehicle body code queue management module 3, this will cause the image to not match the actual photographed vehicle. Therefore, further, a scanner 6 is included, and the scanner 6 is used to read the barcode information on the vehicle body. The scanner 6 is connected to the visual recognition and control module 1 by signal. Each car body is affixed with a barcode, and each barcode corresponds to a VIN code. During implementation, the scanner 6 can scan the barcode on the vehicle body and read the VIN code corresponding to the barcode, and then send the read VIN code to the visual recognition and control module 1. The visual recognition and control module 1 compares the characters recognized in the image, the VIN code corresponding to the vehicle body barcode, and the VIN code sent by the vehicle body code queue management module 3. If the three are consistent, it means that the image acquired by the image acquisition module 2 is completely consistent with the vehicle object. The error rate can be further reduced by setting the scanner 6.

[0034] Specifically, the scanner 6 is an RFID scanner, which has good anti-interference ability and high information reading speed, which is beneficial to improving the working efficiency of the system.

[0035] Furthermore, it also includes a body conveyor line 7 and a line controller 8, the body conveyor line 7 is connected to the line controller 8 by signal, and the line controller 8 is connected to the visual recognition and control module 1 by signal. The body conveyor line 7 is used to convey the car body so that the car enters the site in a certain order for image capture. While the visual recognition and control module 1 sends a signal to the alarm module 4, it can also send a signal to the line controller 8, and the line controller 8 controls the body conveyor line 7 to suspend the conveyance, thereby avoiding confusion in the subsequent process and ensuring the smoothness and efficiency of the entire process.

[0036] Furthermore, a user interface module (not shown in the figure) is also included, and the visual recognition and control module 1, the vehicle body code queue management module 3, the alarm module 4 and the line body controller are respectively connected to the user interface module by signal. Setting the user interface module can facilitate the staff to view the recognition results of the visual recognition and control module 1, directly input the vin code to the vehicle body code queue management module 3, and intuitively view the alarm status of the alarm module 4, etc. Moreover, the user can output signals to other modules through the user interface module, thereby interfering with the actions of other modules.

[0037] Furthermore, the scanner 6 is arranged downstream of the image acquisition module 2. The car will first pass through the station of the image acquisition module 2, and then pass through the station of the scanner 6. If the image pre-inspection module 5 has not received the image after a period of time after the scanner 6 scans the barcode of the car body, it means that the image acquisition module 2 has not yet captured the image. In this case, the scanner 6 sends a signal to the visual recognition and control module 1, and the visual recognition and control module 1 sends a signal to the alarm module 4 and the line controller 8, so that the alarm module 4 issues an alarm, and the line controller 8 controls the line conveyor line 7 to stop conveying the vehicle.

[0038] The working principle or workflow of this embodiment is as follows: during implementation, the vehicle body code queue management module 3 first stores the VIN code queue; then the image acquisition module 2 first acquires the image of the location where the VIN code is engraved on the vehicle body, and then transmits the image to the image pre-inspection module 5; the image pre-inspection module 5 performs a preliminary quality check on the image and after confirming that there is no problem with the image, sends the image to the visual recognition and control module 1; then the scanner 6 scans the barcode on the current vehicle body, identifies the VIN code corresponding to the barcode, and then sends the VIN code to the visual recognition and control module 1; after receiving the image, the visual recognition and control module 1 identifies the characters in the image, and at the same time sends a queue request signal to the vehicle body code queue management module 3; after receiving the signal, the vehicle body code queue management module 3 selects a VIN code from the stored VIN code queue and sends it to the visual recognition and control module 1. control module 1; finally, the visual recognition and control module 1 compares the recognized characters, the VIN code recognized by the scanner 6 and the VIN code sent by the vehicle body code queue management module 3. If the three are consistent, it means that the VIN code in the image is not contaminated, and the VIN code engraved on the actual vehicle body is completely consistent with the recorded VIN code, and there is no quality problem. In this case, the visual recognition and control module 1 uploads the image to the designated system; if the three are inconsistent, it means that the image may be unclear, the VIN code on the vehicle body is contaminated, the VIN code on the vehicle body has a printing quality problem, or the image acquisition module 2 did not shoot the vehicle in sequence and caused the wrong vehicle to be shot. In this case, the visual recognition and control module 1 will send a signal to the alarm module 4, and the alarm module 4 will then issue an alarm to remind people to check the image manually and confirm the cause of the alarm.

[0039] The beneficial effects of this embodiment are as follows: the characters in the image are recognized by the visual recognition and control module, and the recognized characters are compared with the VIN code recorded by the vehicle body code queue management module, and then the image is uploaded or an alarm is triggered according to the comparison result, which saves more time and manpower than the method of manual visual judgment, and can ensure that the VIN code engraved on the vehicle in the image is consistent with the VIN code recorded by the vehicle body code queue management module, thereby avoiding the outflow of erroneous images or unqualified vehicles; using a scanner to scan the barcode on the vehicle body, the VIN code corresponding to the barcode is compared with the characters recognized by the image and the VIN code recorded by the vehicle body code queue management module, which can ensure that the image is consistent with the actual vehicle body, greatly reducing the error rate of information collection.

[0040] Example 2

[0041] This embodiment is a first embodiment of a vehicle body code information collection method, which is applied to a vehicle body code information collection system of embodiment 1, combined with Figure 1 and Figure 2 As shown, the method comprises the following steps:

[0042] Step S1: the vehicle body code queue management module 3 receives and stores the vin code queue.

[0043] Step S2: The image acquisition module 2 acquires an image and then sends the image to the visual recognition and control module 1; then proceed to step S3.

[0044] Step S3: the visual recognition and control module 1 recognizes the characters in the image; at the same time, the visual recognition and control module 1 sends a request queue signal to the vehicle body code queue management module 3; and the process proceeds to step S4.

[0045] Step S4: After receiving the signal, the vehicle body code queue management module 3 determines whether all the vin code queues are marked as acquired. If so, it proceeds to step S6; otherwise, it sends the first vin code that has not been acquired in the vin code queue to the visual recognition and control module 1; and proceeds to step S5.

[0046] Step S5: The visual recognition and control module 1 compares the characters with the first VIN code that has not been acquired to determine whether the two are consistent. If so, the visual recognition and control module 1 uploads the image to the designated system and sends a signal to the vehicle body code queue management module 3. After receiving the signal, the vehicle body code queue management module 3 marks that the current VIN code has been acquired and then re-enters step S2; otherwise, the visual recognition and control module 1 sends a signal to the alarm module 4. The alarm module 4 issues an alarm after receiving the signal and then enters step S6.

[0047] Step S6: End.

[0048] The other working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1.

[0049] Example 3

[0050] This embodiment is a second embodiment of a vehicle body code information collection method, and this embodiment further supplements step S2 to step S6.

[0051] Further, in step S2, after the image acquisition module 2 acquires the image, it first sends the image to the pre-inspection module 5. The image pre-inspection module 5 determines whether there are any missing characters, upside down, blurred, double-imaged, tilted or offset characters in the image. If so, the image pre-inspection module 5 sends a signal to the alarm module 4 to make the alarm module 4 sound an alarm, and then enters step S6; otherwise, the image pre-inspection module 5 sends the image to the visual recognition and control module 1, and then enters step S3.

[0052] Furthermore, in step S3, the scanner 6 scans the barcode on the vehicle body and reads the VIN code information corresponding to the barcode, and then sends it to the visual recognition and control module 1. The visual recognition and control module 1 compares the characters, the unmarked first VIN code and the VIN code corresponding to the barcode to determine whether the three are consistent. If so, the image is uploaded to the designated system and a signal is sent to the vehicle body code queue management module 3, and then the process goes to step S4. Otherwise, a signal is sent to the alarm module 4 to make the alarm module 4 sound an alarm, and then the process goes to step S6.

[0053] Furthermore, in step S1, a waiting time is also set; in step S3, after the scanner 6 scans the barcode on the vehicle body and sends the vin code corresponding to the barcode to the visual recognition and control module 1, the visual recognition and control module 1 determines whether the image sent by the image pre-inspection module 5 has been received after the waiting time. If so, the visual recognition and control module 1 recognizes the characters in the image; otherwise, the visual recognition and control module 1 directly sends a signal to the alarm module 4 to make the alarm module 4 sound an alarm, and the user interface module displays a prompt of "no image uploaded", and then enters step S6. It can be understood that if the visual recognition and control module 1 has not received the image after the waiting time, it means that the staff may have left the workstation and failed to turn on the image acquisition module 2 in time. At this time, the alarm module 4 can be triggered to remind the on-site staff to suspend the transportation of the vehicle body conveyor line first.

[0054] Furthermore, in step S4, when the visual recognition and control module 1 sends a signal to the alarm module 4, it also sends a signal to the line controller 8. After receiving the signal, the line controller 8 controls the vehicle body conveying line 7 to suspend conveying the vehicle.

[0055] After the line controller 8 controls the body conveyor line 7 to suspend the conveying of vehicles, the user can mark the current vehicle as a vehicle that needs to be repaired by manipulating the user interface module, and at the same time send a signal to the line controller 8 through the user interface module, so that the line controller 8 controls the body conveyor line 7 to continue conveying the vehicle, so that there is no need to stop the line and wait, which is conducive to improving the efficiency of information collection. After the information of the vehicles on the entire conveyor line is collected, if it is confirmed that there is a problem with the vin code of the vehicle, the vehicle that needs to be repaired will be sent back to the production line for repair and then retake the image. If it is confirmed that there is no problem with the vin code of the vehicle but the problem is with the image, the image of the vehicle that needs to be repaired will be retaken directly. Before retaking the image, the user inputs the vin code of the vehicle that needs to be repaired to the user interface module to the body code queue management module 3, and the body code queue management module 3 receives the vin code and arranges the vin code in the first place in the vin code queue, and then retakes the image and collects information for the vehicle according to the above steps.

[0056] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 2.

[0057] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description, and it is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle body code information collection system, characterized in that: The invention comprises a visual recognition and control module (1), an image acquisition module (2), a vehicle body code queue management module (3) and an alarm module (4) which are respectively connected to the visual recognition and control module (1) by signals; the visual recognition and control module (1) is used to recognize characters in an image and to determine whether the characters are consistent with VIN code information; the image acquisition module (2) is used to acquire images; the vehicle body code queue management module (3) is used to store a vehicle VIN code queue and send VIN codes to the visual recognition and control module (1) in queue order.

2. The vehicle body code information collection system according to claim 1, characterized in that: It also comprises a pre-check module (5), and the image acquisition module (2) and the visual recognition and control module (1) are respectively connected to the pre-check module (5) by signals.

3. The vehicle body code information collection system according to claim 2, characterized in that: It also comprises a scanner (6), which is used to read the barcode information on the automobile body, and the scanner (6) is connected to the visual recognition and control module (1) by signal.

4. The vehicle body code information collection system according to claim 3 is characterized in that: It also includes a vehicle body conveyor line (7) and a line controller (8), wherein the vehicle body conveyor line (7) is connected to the line controller (8) by signal, and the line controller (8) is connected to the visual recognition and control module (1) by signal.

5. The vehicle body code information collection system according to claim 4, characterized in that: It also comprises a user interface module, and the visual recognition and control module (1), the vehicle body code queue management module (3) and the alarm module (4) are respectively connected to the user interface module by signals.

6. A vehicle body code information collection method, applied to a vehicle body code information collection system as claimed in claim 5, characterized in that: The following steps are involved: Step S1: the vehicle body code queue management module (3) receives and stores the VIN code queue; Step S2: the image acquisition module (2) acquires an image and then sends the image to the visual recognition and control module (1); then proceeds to step S3; Step S3: the visual recognition and control module (1) recognizes the characters in the image; at the same time, the visual recognition and control module (1) sends a request queue signal to the vehicle body code queue management module (3); Go to step S4; Step S4: After receiving the signal, the vehicle body code queue management module (3) determines whether all the VIN code queues are marked as acquired. If so, it proceeds to step S6. Otherwise, it sends the first VIN code that has not been acquired in the VIN code queue to the visual recognition and control module (1); Go to step S5; Step S5: the visual recognition and control module (1) compares the character with the first VIN code that has not been acquired to determine whether the two are consistent. If so, the visual recognition and control module (1) uploads the image to a designated system and sends a signal to the vehicle body code queue management module (3). After receiving the signal, the vehicle body code queue management module (3) marks that the current VIN code has been acquired and then re-enters step S2. Otherwise, the visual recognition and control module (1) sends a signal to the alarm module (4). After receiving the signal, the alarm module (4) issues an alarm and then enters step S6. Step S6: End.

7. The vehicle body code information collection method according to claim 6 is characterized in that: In step S2, after the image acquisition module (2) acquires an image, it first sends the image to the pre-inspection module (5), and the image pre-inspection module (5) determines whether there are any characters missing, upside down, blurred, doubled, tilted or offset in the image. If so, the image pre-inspection module (5) sends a signal to the alarm module (4) to make the alarm module (4) sound an alarm, and then enters step S6; otherwise, the image pre-inspection module (5) sends the image to the visual recognition and control module (1), and then enters step S3.

8. The vehicle body code information collection method according to claim 7 is characterized in that: In step S3, the scanner (6) scans the barcode on the vehicle body and reads the VIN code information corresponding to the barcode, and then sends it to the visual recognition and control module (1). The visual recognition and control module (1) compares the character, the first unmarked VIN code and the VIN code corresponding to the barcode to determine whether the three are consistent. If so, the image is uploaded to the designated system and a signal is sent to the vehicle body code queue management module (3), and then the process proceeds to step S4. Otherwise, a signal is sent to the alarm module (4) to cause the alarm module (4) to sound an alarm, and then the process proceeds to step S6.

9. The vehicle body code information collection method according to claim 8, characterized in that: In the step S1, a waiting time is also set; in the step S3, after the scanner (6) scans the barcode on the vehicle body and sends the VIN code corresponding to the barcode to the visual recognition and control module (1), the visual recognition and control module (1) determines whether the image sent by the image pre-inspection module (5) has been received after the waiting time has passed. If so, the visual recognition and control module (1) recognizes the characters in the image again; otherwise, the visual recognition and control module (1) directly sends a signal to the alarm module (4) to make the alarm module (4) sound an alarm, and then enters the step S6.

10. A vehicle body code information collection method according to any one of claims 6 to 9, characterized in that: In step S4, when the visual recognition and control module (1) sends a signal to the alarm module (4), it also sends a signal to the line controller (8). After receiving the signal, the line controller (8) controls the vehicle body conveying line (7) to suspend conveying vehicles.

Images