KR101529250B1 - Vehicle Inspection System - Google Patents

Abstract

An automobile inspection system that can adequately inspect automobiles not only from the mechanical side but also from the electrical side, thus ensuring the adequacy of the roadworthiness of the tested automobiles. In the automobile inspection system according to the present invention, a plurality of inspection apparatuses measure the mechanical condition and performance for the automobile, and the inspection / input terminal receives data from the inspection apparatus and accepts the input of the operator for the sensory evaluation item. The electronic diagnosis terminal stores information on a system to be inspected for electrical equipment and fault code information for a plurality of vehicle types, loads and executes a diagnostic program, and transmits operation information on a plurality of electrical products to the electronic control device of the vehicle through a signal interface device, Request and accept status information for the sensor of the sensor, and determine the suitability. The signal interface device converts the signal into a form recognizable by the electronic control unit of the vehicle. The judgment terminal judges the final inspection result on the automobile and outputs the diagnosis report through the printer.

Description

Vehicle Inspection System [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle inspection and management system, and more particularly, to a system for inspecting an automobile and exchanging the inspected automobile information through a communication network.

The automobile is a comprehensive machine that is assembled with 20,000 parts and operated under harsh conditions. As a result, the wear and deterioration of the parts are progressed and defects are caused with the use period. And the economic loss such as the traffic congestion caused by the failure of the accident handling cost, the energy loss, and the breakdown is very large. Therefore, the automobile must be maintained at a certain level of suitability for road operation at all times. In accordance with the law, automobile inspection is mandatory at certain intervals.

At the time of this application, there are kinds of automobile inspections such as new inspections, periodic inspections, structural change inspections, temporary inspections, etc. Regular inspections carried out regularly at regular intervals after new registration are mainly made, Actual inspections are carried out at inspection agencies operated or operated by contract.

Automobile inspections shall be conducted to determine whether the structure and equipment of the vehicle conform to the inspection standards set by law, whether the exhaust gas meets the allowable exhaust gas standard set forth in the Air Quality Preservation Act, and whether the sound and exhaust noise are in accordance with the limits of the Noise and Vibration Control Law And whether or not the structure or equipment has been arbitrarily changed.

Accordingly, in the regular inspection process, seven items such as the slip amount beside the steering wheel, the exhaust gas concentration, the braking force measurement, the voiced sound and the exhaust noise, the speedometer error, the liquefied petroleum gas leakage, , Identification of equipments such as a vehicle number, a prime mover type, a license plate, a driving device, a steering device, a braking device, a fuel device, an electric and electronic device, a body and an undercarriage, a connecting device of a towing vehicle, Sensory test, or visual inspection, is carried out on the instrument, instrument, and other structures or devices.

On the other hand, automobiles are complex mechanical devices composed of many mechanical parts, but they also adopt various electronic parts. Especially, in accordance with the remarkable development of electronic control technology, many devices have been electricized in automobiles in order to increase fuel efficiency, safety, or convenience. For example, an electronic control unit for controlling an engine and an anti-lock brake system (ABS) and a transmission control unit (TCU) for controlling a transmission are adopted in most automobiles. In addition, a traction control system (TCS Various computers such as Electronic Stability Program (ESP), Electronic Control Suspension (ECS), Limited Slip Differential (LSD), Electronic Brake Force Distribution (EBD) A control system is adopted, which is implemented separately from the electronic control device or implemented in the electronic control device.

The failure of such an electronic control device increases the possibility of accident as much as a mechanical failure and can act as a factor that threatens the life and health of a passenger. In particular, since the electronic control unit (ECU) controls the engine based on the signals sensed by the plurality of sensors, there is a high possibility that the engine malfunctions even if some sensors are unstable or fail.

However, in the conventional automobile inspection process, only the formal inspection based on the sensory test, i.e., visual inspection, is carried out on the electrical equipment, and the proper operation of the electrical equipment, especially all the sensors, is not inspected. Therefore, it can not be expected that it is fully accomplishing the intention to prevent accidents and unforeseen situations by examining suitability of road operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automobile inspection system capable of sufficiently inspecting an automobile not only in terms of mechanical aspects but also in terms of electrical aspects, do.

According to an aspect of the present invention, there is provided an automobile inspection system, wherein the server is linked to an automobile registration management system and provides information on specifications of the automobile to be inspected. The reception terminal is interlocked with the server and is used for inputting identification information on the automobile to be inserted into the inspection area. A plurality of inspection apparatuses measure the mechanical condition and performance of the vehicle, and the inspection / input terminal receives data from the inspection apparatus and accepts the input of the operator for the sensory evaluation item. The electronic diagnosis terminal stores the system and the failure code information of the electrical equipment inspection objects for a plurality of vehicle types, loads and executes a diagnostic program, and controls the electronic control unit of the automobile via operation of the signal interface device, Request and accept status information for the sensor of the sensor, and determine the suitability. The signal interface device converts the signal into a form recognizable by the electronic control unit of the automobile. The judgment terminal judges the final inspection result on the automobile and outputs the diagnosis report through the printer.

According to the present invention, it is possible to inspect the entire road suitability of the vehicle sufficiently by detecting not only the mechanical suitability of the automobile to be inspected but also the signs of the obstacle or the obstacle in the electrical aspect. In particular, it is possible to accurately and quickly diagnose the abnormality of all the sensors that are the basis of the operation of the electronic control unit (ECU) or the electronic control unit (ECU).

Accordingly, it is possible to increase the reliability of the automobile inspection, prevent the life and health of the car user from being threatened by the defects of the automobile, and further reduce the personal, social and economic losses.

Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the accompanying drawings. In the figure,
1 is a block diagram of an embodiment of a vehicle inspection system according to the present invention;
2 is a detailed block diagram of a diagnostic program and a database installed in the electronic diagnostic terminal;
FIGS. 3A to 3K illustrate a specific type of a failure code; FIG.
4 is a perspective view of one embodiment of a signal I / F device;
5 is a screen screen shot showing an example of an initial screen of the diagnostic program;
A screen screen shot showing an example of the reception screen in Fig. 6;
7 is a screen screen shot showing an example of a screen for selecting a vehicle type and an inspection system;
8 is a screen screen shot showing an example of a specific car information display screen; And
9A and 9B are views showing an example of the comprehensive function certificate of the vehicle function.

1 shows an embodiment of an automobile inspection system according to the present invention. The automobile inspection system according to the illustrated embodiment includes an inspection integrated management server 100 and an inspection site subsystem 200 installed at each automobile inspection site.

The inspection integrated management server 100 is interlocked with the automobile registration management system 900 constructed and operated on a unit basis or on a nationwide basis so that it is possible to provide the automobile registration management system 900 with the specifications of the automobile Accepts information on the registration details, provides inspection guidance information to the car owners, accepts inspection results through the inspection sub-system 200 of each inspection center, controls the inspection process, And notifies the system 900.

The inspection site subsystem 200 includes a reception terminal 210, an inspection / input terminal 220, a plurality of inspection equipment 222, an electronic diagnosis terminal 230 and a judgment terminal 300 do. Each terminal 210, 220, 230, and 300 installed in the inspection site sub system 200 transmits and receives information to and from the inspection integrated management server 100 via the Internet. However, in a modified embodiment, each of the terminals 210, 220, 230, and 300 may be connected to its own server through an intranet, and may be connected to the inspection integrated management server 100 through the own server. The inspection / input terminal 220, the electronic diagnosis terminal 230, and the determination terminal 300 may be provided for each inspection line when a plurality of inspection lines are installed in the inspection area.

The reception terminal 210 is used for inputting information on a vehicle actually received at the inspection site to be inspected. Information about the automobile inputted through the reception terminal 210 is provided to the inspection integrated management server 100 or the own server or directly to the other terminals 220, 230 and 300.

The inspection / input terminal 220 is connected to a plurality of inspection equipments 222 and accepts a specification and inspection list for each automobile from the inspection integrated management server 100 or another terminal. The inspection according to the inspection list is performed through the inspection equipment 222 and the measurement result is received from the inspection equipment 222 and is stored and transmitted to the inspection integrated management server 100 and / . The inspection equipment 222 may be, for example, an ABS inspection equipment, an exhaust gas analyzer, a soot measuring equipment, a headlight tester, a camera, etc. Each inspection equipment 222 has a unique IP address, ) Can identify the equipment by IP address. In addition, the inspection / input terminal 220 can provide sensory test results on the results measured by the inspection equipment without network communication function, various oil pollution degree, oil amount, tire, brake pad wear, various belt damage, Allows the operator to input directly. The inspection / input terminal 220 is preferably a touch screen kiosk type so that the operator can easily operate the inspection / input terminal 220.

The electronic diagnosis terminal 230 is connected to the vehicle 400 to be inspected through a signal interface (I / F) device 270 and receives data on ECUs and various sensors of the vehicle 400 to be inspected, And transmits the detection result and the analysis result to the inspection integrated management server 100 and / or the judgment terminal 300. [ The electronic diagnosis terminal 230 is provided with a diagnostic program 240 and a database 260 about diagnosis target systems and diagnostic items and diagnostic methods for various automobiles.

The signal I / F device 270 can be connected to the data link connector (DLC) 402 provided in the vehicle 400 via the DLC cable and connected to the electronic diagnosis terminal 230 via the USB cable. In general, the pin arrangement of the DLC cable is changed according to the inspection item. The signal I / F device 270 converts the signal format according to the inspection item, and transmits the DLC cable through the DLC cable in accordance with the pin arrangement of the DLC cable. And collects information on the ECU and all sensors and provides the collected information to the electronic diagnosis terminal 230. [

The judgment terminal 300 judges the inspection result based on the information collected or inputted through the inspection / input terminal 220 and the electronic diagnosis terminal 230, and notifies the inspection result to the inspection integrated management server 100 . In addition, the judgment terminal (300) outputs the comprehensive function certificate of the function of the vehicle through the printer (310) in response to the command of the inspection integrated management server (100) and can issue it to the owner.

2 shows a configuration of a diagnostic program 240 and a database 260 installed in the electronic diagnostic terminal 230. [

First, the database 260 includes a vehicle type table 262, a system table 264, and a failure code table 266.

The vehicle type table 262 stores information on a manufacturer, a model year, a vehicle type, and an engine type for all the vehicles inspected at the inspection site.

The system table 264 includes information on the inspection target system for the inspection target vehicle type. The system may be classified into an engine, an airbag, an automatic control, an automatic transmission, an immobilizer, and the like. However, in other embodiments, the system may be configured to operate in a variety of ways, including engine control, airbags (primary crash), airbags (secondary crash), braking control, electronic control suspension, headway distance control, automatic transmission, electric parking brake, , Electronic shift lever, power steering, PSB-LH, PSB-RH, multimedia, driver's door module, passenger door module, body electric field control, head-up display, steering column module, cluster module, multifunction switch, power seat module, front Smart Junction Box, Rear Smart Junction Box, Steering Wheel Remote Control, Smart Car Unit, Adjustable Headlight, Around View Monitor, Lane Departure Warning, Blind Spot Detection, Cubis, Tire Pressure Monitoring.

The failure code table 266 stores information on the type of a specific failure code for each inspection target system stored in the system table 264 and a failure determination criterion.

FIGS. 3A to 3K illustrate a specific type of failure code and illustrate various types of failure codes, including automatic transmission, engine control, airbag (first collision), braking control, inter-vehicle distance control, electric parking brake, Body length control, and fault codes for power sheet module systems, respectively.

2, the diagnostic program 240 includes a main control unit 242, a user interface (U / I) unit 244, a vehicle type / system selection unit 246, a diagnosis unit 248, And a server communication unit 250.

The main control unit 242 controls the entire execution process of the diagnostic program 240 in accordance with a command of the user or an instruction of the inspection integrated management server 100 or its own server.

The user interface (U / I) unit 244 generates and displays various screens to be displayed on the monitor of the electronic diagnosis terminal 230, and accepts user input.

The vehicle type / system selection unit 246 selects a vehicle type and system of the vehicle to be inspected. Specifically, the vehicle type / system selection unit 246 reads information corresponding to the vehicle to be inspected from the vehicle type table 262 and the system table 264, displays the information on the monitor of the electronic diagnosis terminal 230, To select the system to be inspected. In addition, the vehicle type / system selection unit 246 may receive information about the vehicle to be inspected from the inspection integrated management server 100 and automatically select a system to be inspected.

When the system to be inspected is selected, the diagnosis unit 248 requests the ECU of the vehicle 400 via the signal I / F device 270 of the status data of the system to be inspected, and outputs the signal I / F device 270 And judges whether the state is normal by referring to the data stored in the failure code table 266. [

The server communication unit 250 informs the inspection integrated management server 100 or its own server of the inspection result and accepts the inspection operation from the inspection integrated management server 100 or its own server.

4 is a perspective view of one embodiment of the signal I / F device 270. FIG.

The signal I / F device 270 has a substantially rectangular parallelepiped shape, and a power button 272 and a status indicator 274 are provided on a front surface thereof. A mini USB connector 276 for connecting to the electronic diagnosis terminal 230 by a USB cable and a DLC connector 278 for connecting to a 16-pin data link connector DLC of the vehicle are provided on the upper surface thereof . In a vehicle with a 16-pin DLC supporting OBD II regulation, the signal I / F device 270 can be powered via a DLC cable without a separate power supply, but in the case of a vehicle without a 16-pin DLC The power can not be supplied through the DLC. In view of this, the signal I / F device 270 is additionally provided with a cigar power connector 280 for connecting to the cigar jack of the automobile through a cigarette cable.

The signal I / F device 270 receives a code for a vehicle type and a system from the electronic diagnosis terminal 230 through a USB cable, requests information from the ECU of the vehicle through a DLC cable and receives the received information, And provides it to the diagnostic terminal 230.

In general, DLC cables and connectors are pinned by the SAE J1962 standard, but pin assignment may differ when transmitting and receiving data to and from the vehicle. In this case, the signal I / F device 270 can incorporate pin arrangement information for each vehicle type and system into a database, and can communicate with the vehicle by referring to it. However, in a modified embodiment, the electronic diagnostic terminal 230 may also provide pin assignment information when it holds this information and commands data collection, and the signal I / F device 270 may only provide the signal conversion function It may be done.

The vehicle inspection system of Fig. 1 operates as follows.

First, when the diagnostic program is executed and logged in, an initial screen as shown in FIG. 5 is displayed. As shown in the figure, the initial screen includes menus such as 'Manual diagnosis of diagnosis system', 'Diagnosis system automatic diagnosis', 'Diagnosis system inspection history inquiry', and the like. In addition, 'program update' , 'Help Desk', and the like are displayed.

When the operator selects the " diagnostic system manual diagnosis " menu, the reception screen shown in Fig. 6 is displayed. This screen displays a list of cars currently pending inspection and allows the operator to select the vehicle to be inspected by clicking with the mouse or by entering a number.

When the operator selects an automobile, a screen for selecting a specific vehicle type and a system to be inspected is displayed as shown in FIG. When the operator clicks the 'vehicle information' button on the vehicle type / system selection screen of FIG. 7, a specific car information display screen as shown in FIG. 8 can be displayed.

On the other hand, when the operator completes the vehicle type and system selection on the vehicle type / system selection screen of FIG. 7 and clicks the 'start inspection' button, the inspection of the vehicle's electric system is started.

At this time, the diagnosis unit 248 of the diagnostic program 240 requests the ECU of the automobile 400 through the signal I / F device 270 for the diagnosis data of the system to be inspected. In this process, the signal I / F device 270 converts the request signal into a predetermined form for the system, and requests data from the ECU according to an appropriate pin arrangement. Upon receiving a signal from the ECU, the signal I / F device 270 converts the collected data into a signal format suitable for the electronic diagnostic terminal 230, that is, a signal format conforming to the USB communication standard, to provide. Based on the received status data, the electronic diagnosis terminal 230 determines whether or not the data is normal by referring to the data stored in the failure code table 266, displays the determination result on the screen, and transmits the result to the inspection integrated management server 100 .

On the other hand, in the case of selecting the 'diagnosis system automatic diagnosis' menu on the initial screen of FIG. 5, the inspection is automatically performed on the system items designated by the inspection integrated management server 100 after the automobile to be inspected is selected. At this time, the diagnosis unit 240 of the diagnostic program 240 automatically transmits a data request signal to the system under test automatically through the signal I / F device 270 to the ECU of the automobile 400. Accordingly, the inspection is automatically carried out sequentially for a plurality of inspection target systems.

When all of the inspection information is collected regardless of the manual diagnosis or the automatic diagnosis, the inspection integrated management server 100 finally determines the inspection result and transmits the determination result to the judgment terminal 300. [ On the other hand, in another embodiment, the determination may be made by the judgment terminal 300 and then sent to the inspection integrated management server 100. [ When the determination is completed, the judgment terminal 300 outputs the comprehensive function certificate of the vehicle function as shown in Figs. 9A and 9B, and the operator can issue the certificate to the car owner. In Fig. 9B, a portion indicated by a box indicates a portion indicating an item inspected by the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary may be embodied in many forms without departing from the spirit or essential characteristics thereof.

Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Car Inspection Integrated Management Server
200: Inspection Station Subsystem
210: reception terminal, 220: inspection / input terminal, 222: inspection equipment
230: electronic diagnosis terminal, 270: signal interface (I / F) device
300: terminal for judgment, 310: printer
272: Power button, 274: Status indicator
276: mini USB connector, 278: DLC connector, 280: cigar power connector

Claims (2)

Inspection sub-systems installed at each car inspection station; And
The inspection sub-system is connected to the external automobile registration management system through a network. The inspection sub-system provides the inspection sub-system with information on the specifications of the automobile to be inspected and controls the inspection process. A server for accepting data of the electronic test result and determining a final test result;
And,
The inspection site subsystem
A reception terminal interlocked with the server, for receiving identification information on an inspection subject vehicle to be inspected and transferring the identification information to the server;
And a control unit for accepting measurement data from an inspection apparatus for measuring the mechanical condition and performance of the inspection subject vehicle according to the specification and the inspection list, An inspection / input terminal for accepting an input of an operator and transmitting the mechanical inspection result data including the measurement data and the operator's input to the server;
A plurality of electrical equipment systems and failure code information for a plurality of vehicle types are stored, a diagnostic program is loaded and executed, communication information is communicably connected to an electronic control device of the vehicle to be inspected, An electronic diagnostic terminal for sequentially requesting and accepting status information on a plurality of sensors from the electronic control unit, determining appropriateness, and transmitting the electronic test result data to the server;
A signal interface device installed between the electronic diagnostic terminal and the electronic control device and converting the signal into a form recognizable by the electronic diagnostic terminal and the electronic control device; And
A judgment terminal for receiving the final inspection result from the server and outputting a diagnosis report through a printer;
The vehicle inspection system comprising: Inspection sub-systems installed at each car inspection station; And
The inspection sub-system is connected to the external automobile registration management system through a network. The inspection sub-system provides the inspection sub-system with information on the specifications of the automobile to be inspected, controls the inspection process, Accepting server;
And,
The inspection site subsystem
A reception terminal interlocked with the server, for receiving identification information on an inspection subject vehicle to be inspected and transferring the identification information to the server;
And a control unit for accepting measurement data from an inspection apparatus for measuring the mechanical condition and performance of the inspection subject vehicle according to the specification and the inspection list, An inspection / input terminal for accepting an input of an operator and outputting mechanical inspection result data including the measurement data and the operator's input;
A plurality of electrical equipment systems and failure code information for a plurality of vehicle types are stored, a diagnostic program is loaded and executed, communication information is communicably connected to an electronic control device of the vehicle to be inspected, An electronic diagnosis terminal for sequentially requesting and accepting status information on a plurality of sensors to the electronic control unit, determining appropriateness thereof, and outputting electronic test result data;
A signal interface device installed between the electronic diagnostic terminal and the electronic control device and converting the signal into a form recognizable by the electronic diagnostic terminal and the electronic control device; And
Receiving the mechanical inspection result data and the electronic inspection result data from the inspection / input terminal and the electronic diagnosis terminal via the network, judging the final inspection result for the inspection target vehicle, outputting the diagnosis report through the printer ;
The vehicle inspection system comprising:

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