KR100476204B1 - Identification number detection controlling method of vehicle - Google Patents

Abstract

The present invention relates to a method for controlling the detection of a vehicle that can easily check a character recognition result when checking the information of the vehicle through each of the vehicles. The present invention provides a method for detecting and detecting a character of a vehicle, the method comprising: recognizing a character constituting the character; Comparing the position value of the recognized character with a set reference value; Comparing whether the vehicle model corresponding to the recognized vehicle is a vehicle model according to a process; And displaying the result of the character recognition.

Description

How to control the detection of each vehicle {IDENTIFICATION NUMBER DETECTION CONTROLLING METHOD OF VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle, and more particularly to a method for controlling the detection of a vehicle.

Typically, when the painted vehicle 10 is moved to the next process as shown in FIG. 1, the vehicle identification number (VIN) 12 of the vehicle 10 arriving at the process is obtained by using the respective recognition vision system. Check it.

That is, each image 12 of the vehicle 10 is photographed by the image photographing unit 20.

Each vehicle 12 of the vehicle 10 is generally engraved with a unique value according to the producing country, the production plant, and the producing company, as shown in FIG.

Referring to FIG. 2, the first letter K constituting each of the 12 indicates the producing country.

The second letter (M) represents the production company.

The third letter (H) represents the passenger car and the eleventh letter (U) represents the Hyundai Motor Ulsan Plant.

Therefore, certain characters (eg, K, M, H, U) among the characters constituting each of the 12 should always be read in a fixed position.

On the contrary, the characters constituting each of the characters 12 at a specific position are variable in a certain range.

For example, the 4th letter means the vehicle type, the 10th letter means the year of production, and the 12th through 17th letters indicate the serial number and are variable in a certain range.

The image capturing unit 20 is installed differently according to the mounting position of each of the 12 of the vehicle 10. In general, the image capturing unit 20 is installed so that the photographing direction is directed from the lower part of the vehicle body to the upper part. do.

Image data photographed by the image capturing unit 20 is input to the recognition control unit 30 and processed, and then displayed as an image through the image display unit 40.

However, when using the above method, when each character 12 of the vehicle 10 photographed through the image capturing unit 20 recognizes a character itself in an image, it is incorrectly read (readed) and displayed on the image display unit 40. There was a problem.

For example, the character recognition result may be misread according to the condition of the image input through the image capturing unit 20, and the operator must check and verify the recognition error of the program 100% so that there is no inhibition in production.

In the case where it is difficult for an operator to check the character recognition result, there is a problem in that each person 12 mounted on the vehicle 10 needs to be directly checked.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for controlling the detection of a vehicle that can easily check a character recognition result when checking the information of the vehicle through each of the vehicles.

In order to achieve the above object, the present invention provides a method for detecting and controlling a vehicle, the method comprising: recognizing a character constituting the vehicle; Comparing the position value of the recognized character with a set reference value; Comparing whether the vehicle model corresponding to the recognized vehicle is a vehicle model according to a process; And displaying the result of character recognition.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Referring to FIG. 3, a method for detecting and detecting a vehicle according to an embodiment of the present invention will be described.

First, a configuration of a control device for implementing a method for detecting and detecting a vehicle in accordance with an embodiment of the present invention will be described.

According to an embodiment of the present invention, when the painted vehicle is moved to a detection process, an image photographing unit and an image capturing unit photograph a vehicle identification number (VIN) of the vehicle arriving at the process using a self-recognition vision system. And a picture display section for displaying an image processed through the picture recognition section.

According to an embodiment of the present invention having the configuration described above, the method for detecting and detecting a vehicle comprises: recognizing a character constituting each of the vehicles (S300); Comparing the digit value of the recognized character with a set reference value (S310); Comparing the car model corresponding to the recognized car model according to the process (S320); And displaying the result of the character recognition on the image display unit (S330).

S332 illustrated in FIG. 3 represents a step of registering a vehicle that has performed the above-described steps S300 to S330 to a list of vehicles that have passed the detection process.

First, the step of recognizing each character (S300) includes the step of photographing each person through the image photographing unit (S302); Analyzing the photographed images through the respective recognition controllers and converting the photographed images into image data (S304); Recognizing a character from the converted image data is carried out (S306).

The step S310 of comparing the recognized character position value with the set reference value may include comparing whether the fixed value is read at the correct position (S312); Comparing whether the variable value has been read at the correct position (S314); A step S316 is performed to compare whether the read variable value is within a set variable range. Each vehicle vehicle identification number (VIN) is imprinted with a unique value according to the producing country, the production plant, and the producing company. For example, in the case of South Korea, the first letter (K) that makes up each country represents a producing country, and the second letter (M) represents a producing company. The third letter (H) represents a passenger car. (U) denotes Hyundai Motor Ulsan factory. As such, certain characters (eg, K, M, H, U) among the letters constituting each should always be read in a fixed position. In contrast, the characters that make up each character in a particular position are variable in a certain range. For example, the fourth character is the vehicle type, the tenth character is the production year, and the twelfth to seventeenth characters are a series. time It may be variable in a certain range. This is called a "variable value." And, "an exact position" refers to a fixed position for the eigenvalues and variable values constituting each of them. If the letter is located first among the letters that make up each other, the position of the letter relative to the producing country can be said to be in the correct position.

On the other hand, if the fixed value or the variable value is not read at the correct positions in S312 and S314, respectively, the recognition controller proceeds to S318 to perform an alarm control operation for a character read failure.

If the variable value read in S316 described above is not within the set variable range, the recognition controller proceeds to S318 to perform an alarm control operation for a character read failure.

Here, it should be noted that the alarm control operation may display an alarm state on the image display unit or constitute a separate alarm unit to provide visual and audio alarms.

Vehicle model comparison step (S320) comprises the step of comparing whether the car model corresponding to each recognized and the same as the vehicle model according to the process (S322); If the compared models are the same, detecting whether the vehicle has passed the detection process (S324); If the detected vehicle is not the vehicle that has passed the detection process, it is detected in step S326 whether the vehicle is to arrive at the detection process.

Here, the determination of the vehicle model is made through the vehicle model value determined by using the photo sensor in the respective detection process control unit PLC configured separately.

If the vehicle models compared in the above-described (S322) is not the same, the respective recognition control unit proceeds to (S328) and performs a control operation for warning the vehicle model abnormal state.

If the vehicle detected in step S324 is a vehicle that has passed the detection process, the self-recognition control unit proceeds to step S328 to perform an alarm control operation on the respective detection completed vehicle.

As described above, the method for controlling the detection of each vehicle according to the present invention has an effect of systematically reducing a character reading error.

1 is a view showing the configuration of a device for detecting a vehicle according to the prior art;

2 is a diagram illustrating a respective configuration of a vehicle.

3 is a flowchart illustrating a method for controlling the detection of a vehicle in accordance with an embodiment of the present invention.

Claims (8)

delete delete In the self detection control method of the vehicle, Photographing the self, analyzing the photographed self, converting the photographed self into image data, and recognizing a character in the converted image data to recognize a character constituting the self; Comparing whether the recognized character reads a fixed value at the correct position, and if the variable value is read at the correct position, compares whether the read variable value is within a set variable range and compares the position value of the recognized character with the set reference value. Steps; Comparing whether the vehicle model corresponding to the recognized vehicle is a vehicle model according to a process; And displaying the result of the character recognition. 4. The method according to claim 3, further comprising an alarm for a character read failure if a fixed value or a variable value is not read at the correct position. 4. The method according to claim 3, further comprising an alarm for a character read failure if the read variable value is not within a set variable range. The method of claim 3, wherein the comparison of the vehicle type Comparing whether the recognized vehicle model is the same as the vehicle model according to the process; If the compared car models are the same, detecting whether each vehicle has passed the detection process; And detecting whether the detected vehicle is a vehicle that is expected to arrive at the respective detection process if the vehicle has not passed the detection process. 7. The method of claim 6, further comprising the step of alarming an abnormal state of a vehicle type if the compared vehicle types are not the same. 7. The method of claim 6, further comprising: an alarm step for the respective detected vehicle if the detected vehicle passes the respective detection process.