KR20010091797A - Vehicle Diagnostic System And Method Using Mobile Telecommunication System - Google Patents

Abstract

PURPOSE: A vehicle self-diagnostic system and a method using a mobile terminal is provided so that a user can execute self-diagnosis for his vehicle using his mobile terminal and can receive relevant repair information. CONSTITUTION: A vehicle self-diagnostic system consists of a mobile terminal(10), a data conversion system(20), a vehicle control/self-diagnosis unit(30), and an information service center(40). The mobile terminal(10) accesses the information service center(40), downloads basic information for the diagnosis of malfunctions in new vehicle types and modified diagnostic information, and upgrades a database. The mobile terminal(10) is comprised of a transceiver(11), a data updating part(12), a database(13), a vehicle diagnosis part(14), an interface part(15), and a main processor(16). The data conversion system(20), installed in a vehicle or in the mobile terminal as a special module, covers a function to stably maintain the data transmission and reception between the vehicle control/self-diagnosis unit(30) and the mobile terminal(10), as connected between them. The data conversion system(20) is comprised of a main processor(21), the first interface part(22), a packet processing part(23), and the second interface part(24). The vehicle control/self-diagnosis unit(30) executes self-diagnosis for vehicle status information detected during the operation of a vehicle, and stores it in a preset database. The information service center(40), a service provider who provides basic information for the malfunction diagnosis of vehicles, is composed of a transceiver(41), a user authentication part(42), a data retrieval part(43), a database(44), and a main processor.

Description

Vehicle self-diagnosis system and method using mobile communication terminal {Vehicle Diagnostic System And Method Using Mobile Telecommunication System}

The present invention relates to an apparatus and method for providing fault diagnosis / repair information for a vehicle, and more particularly, to diagnose a fault of a vehicle by using a mobile communication terminal and to provide repair information thereof, and to provide a fault diagnosis basis for a new vehicle. The present invention relates to a vehicle self-diagnosis system and method using a mobile communication terminal for updating information or changed diagnosis basic information through a wireless channel to update corresponding information.

In general, automobiles are composed of high-tech science mechanisms that combine mechanical controls with electronic controls such as engine controls, shift controls, brake controls, and suspension controls, which are installed on each part of the vehicle. After receiving the general state information of the vehicle from the sensors and determining it, based on this, it controls the respective parts of the vehicle more efficiently to perform stable driving performance, low fuel consumption and comfortable riding comfort.

In the case of automobiles, which are constituted by the mechanisms of high-tech sciences, due to the widespread use of women and the widespread spread of female drivers, there are problems with various parts in driving a car and any parts of consumables (oil, brake lining, tires, etc.). Only a small number of drivers can artificially diagnose failures and burnouts.These diagnostics also diagnose the abnormality of the vehicle through the senses that the driver feels while the vehicle is in operation, and then wear the vehicle in a repair shop to check whether the driver has an abnormality. It decides whether or not to repair the relevant parts by requesting.In particular, in the automobiles that are advanced according to the spread of various convenience specifications, the engine control device which maintains the optimum engine condition according to the signal input from various sensors and maintains the optimum driving performance Shifting control device Suspension control device is provided to provide a deduction, the electronic control device as described above, the overall state information of the vehicle generated during operation for the reliability and stability of maintenance, that is, the state information for each part of the engine, automatic shift control And self-diagnostic status information for the braking control and the like are stored in the engine control device, the shift control device or a self-diagnosis unit which is a separate memory means.

As described above, in the case of the self-diagnosis data stored in the engine control device, the shift control device, or the self-diagnosis unit, the diagnostic data for each vehicle type and item can be analyzed only by a scanner included in the data cartridge.

Therefore, when the driver feels an abnormality in the driving vehicle, the driver must visit a maintenance shop equipped with a scanner, which is a specialized diagnostic equipment, to read the self-diagnosis data stored in the engine control unit, shift control unit, or self-diagnosis unit of the vehicle. After diagnosing the abnormality of the car, it is possible to maintain the parts replacement or repair of the relevant parts, and for the self-driver to analyze and judge the data stored in the engine control device, shift control device or self-diagnosis unit by themselves, There must be an expensive scanner and a problem that can diagnose the abnormality of the vehicle only if the expert knowledge is provided in the analysis of the self-diagnosis data.

In addition, new models are continuously being developed according to the competition of automobile manufacturers and consumers' demands. However, in case of scanners, which are specialized diagnostic equipment, diagnostic data on new models are not set. The cumbersome problem of repurchasing the scanner or upgrading the data occurs, and the burden is added to the driver's expense.In addition, the data on the new car can be upgraded and applied to the diagnosis and maintenance of the car. Time-consuming problems arise.

In addition, in the case of the scanner, which is a professional diagnostic equipment, the data for each model and the parts for each type of vehicle are produced separately so that the car maintenance specialist can perform the diagnosis only by referring to the separate manual. It is so complicated that it lacks professionalism and it is not only usable but also inefficient in use.

Recently, with the revival of the internet business, there is a proliferation of information-providing sites that provide information on vehicle fault diagnosis.However, in order to diagnose the fault condition of the vehicle through the internet site, the driver must know the fault position in advance. After checking the abnormality or abnormality, click the set item provided on the screen on the Internet or input the information on the abnormality to output the result on the screen, or to send an e-mail or fax designated by the driver. It can be provided through the bulletin board.

Therefore, the current method of diagnosing an abnormality of a car through the Internet does not have a substantial effect on how to deal with the broken position until the driver finds the exact element of the broken position. Maintenance problems can be identified only on the premise that the driver is well aware of the exact failure area, and therefore, if there is no expert knowledge of the vehicle, effective measures cannot be taken in the field. The problem arises that only the reference information on the failure part is known.

In addition, when inquiring about a faulty vehicle, the user should always be able to read an account, an e-mail or a bulletin board of an Internet site presented by an expert. There is a lack of instantaneousness in terms of the usefulness of information, and the problem of not being able to diagnose the state of a vehicle running through the Internet while the vehicle is running.

The present invention is to solve the general problems as described above and to provide the vehicle driver and managers with fault diagnosis information of the vehicle more easily and efficiently, the object of which is a mobile communication terminal (cell phone, PCS , PDA, electronic notebook, etc.) to self-diagnose the fault of the vehicle, and to receive repair response information.The basic information required for the diagnosis of the new vehicle and the newly changed fault diagnosis and The repair response information can be downloaded from the information provider via a wireless channel.

In addition, the self-diagnosis data generated during operation of the vehicle can be analyzed in real time, so that appropriate measures can be taken for the abnormality of the vehicle generated during operation.

1 is a block diagram of a vehicle self-diagnosis system using a mobile communication terminal according to the present invention.

2 is a flowchart of an embodiment of performing a vehicle self-diagnosis using a mobile communication terminal according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: mobile communication terminal 20: data conversion system

30: vehicle communication system 40: information providing center

The present invention for achieving the above object is an information providing center for providing information for diagnosing a failure of a vehicle to a registered subscriber, and a vehicle control device / self for storing and diagnosing a failure during operation of the vehicle A mobile communication terminal for setting a diagnosis device and vehicle failure diagnosis information downloaded from the information providing center in a database, and communicating with the vehicle control device / self-diagnosis device to diagnose a failure of a corresponding vehicle and output a result thereof. And a data conversion system for converting data transmitted and received in order to match the data communication method between the mobile communication terminal and the vehicle control device / self-diagnostic device. .

The present invention also provides a method for connecting a mobile communication terminal to a vehicle control device / self-diagnostic apparatus through a data conversion system and then selecting a vehicle failure diagnosis mode, and in response to the vehicle failure diagnosis mode being selected, the processor of the mobile communication terminal may generate data. Searching the base to determine whether the basic information on the diagnosis is set for the vehicle to be diagnosed, and if the basic information on the diagnosis of the vehicle to be diagnosed is set, the vehicle control device through the data conversion system. Diagnosis of the process of requesting the transmission of self-diagnosis information data to the self-diagnosis device and diagnosis of the self-diagnosis information data received from the vehicle control device / self-diagnosis device through the diagnosis information set in the database. And outputting a text or voice response to the repair. It characterized in that a vehicle using a mobile communication terminal, characterized in that to provide a self-diagnosis method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1 vehicle self-diagnosis system using a mobile communication terminal according to the present invention is a mobile communication terminal 10, a data conversion system 20, a vehicle control device / self-diagnostic apparatus 30 and the information providing center It consists of 40.

The mobile communication terminal 10 is a conventional mobile communication terminal such as a cellular phone, a PCS, a PDA, and the like, and an application program for diagnosing a failure of a vehicle and a diagnostic item for diagnosing a failure are set in a detailed sub-item unit or an entire unit in a database. And instructs the driver or the vehicle manager by voice or text information on the repair and response method according to the result of the diagnosed failure, and connects the information providing center 40 through a wireless channel. Upgrade the baseline database by downloading the information and changing troubleshooting information.

The mobile communication terminal 10 processes a failure diagnosis basic information of a vehicle as a Short Message Service (SMS) / Interwork Function (IWF) message by using a code division multiple access (CDMA) communication method, thereby generating a wireless channel, that is, a paging channel. Communicate via

The mobile communication terminal 10 includes a transceiver 11, a data updater 12, a database 13, a vehicle diagnostic unit 14, an interface unit 15, and a main processor 16. The main processor 16 performs general operations for wireless mobile communication such as text and voice, general operations for vehicle fault diagnosis, and fault diagnosis for new vehicles through relay of a cell site (not shown). Receiving information from the information providing center 40 controls the operation to upgrade the database.

The transceiver 11 is composed of an RF module, and performs transmission and reception of wireless mobile communication pulse code modulation (PCM) data of voice and text, and updates or upgrades basic information for diagnosing a failure of a vehicle, If backup of the failure diagnosis data is required, request the authentication of the information providing service to the information providing center 40, and if the authentication permission is granted from the information providing center, request the transmission of basic information data to be updated, and the information providing center. It is in charge of the function of receiving the basic information on the failure diagnosis of the vehicle serviced from 40.

The data updater 12 upgrades the basic information on the new vehicle type and the updated fault diagnosis received from the information providing center 40, and updates the general state information of the currently diagnosed vehicle by date and time by the corresponding vehicle. It is responsible for updating the fault diagnosis history.

The database 13 has a function of storing general data for wireless mobile communication, general information for diagnosing a failure of a vehicle, fault diagnosis data backed up and updated, and status information diagnosed in a corresponding vehicle in a designated address area. In charge.

The vehicle diagnosis unit 14 may be connected to the vehicle control unit / self-diagnosis unit 30 under the control of the main processor 16 when the vehicle control unit / self-diagnosis unit 30 is connected through the data conversion system 20. Request the diagnostic information, and analyze the self-diagnosis data received through the data conversion system 20 through the failure diagnosis basic information set in the database to diagnose the abnormality of the vehicle and then the result of the voice or text It is responsible for updating the diagnosed data to the diagnostic result storage address set at the same time as the output.

The interface unit 15 is, for example, a serial communication interface consisting of RS-232, which is connected to the data conversion system 20 to request the self-diagnosis data and the requested self-diagnosis data with the vehicle control device / self-diagnosis device 30. It is responsible for the function of receiving the data by serial communication.

The data conversion system 20 is installed in a vehicle or installed as a separate module in the mobile communication terminal 10, and is connected between the vehicle control device / self-diagnosis device 30 and the mobile communication terminal 10 to communicate differently. The main processor 21, the first interface 22, and the packet processor are responsible for maintaining a stable data transmission and reception between the mobile communication terminal 10 and the vehicle control device / self-diagnostic apparatus 30 having a 23 and the second interface unit 24.

When the mobile communication terminal 10 is connected to the first interface unit 22 and the vehicle control device / self-diagnostic apparatus 30 is connected to the second interface unit 24, the main processor 21 includes a mobile communication terminal ( 10) the operation of converting the diagnostic information required in the vehicle control device / self-diagnostic device 30 to the K-line or L-line communication method and the K-line in the vehicle control device / self-diagnosis device 30 Or it controls the overall operation of converting the self-diagnosis data received by the L-line communication method into data capable of serial interface.

The first interface unit 22 is connected to the interface unit 15 of the mobile communication terminal 10 and performs a function of performing data communication between the mobile communication terminal 10 and the data conversion system 20 through a serial interface. .

The packet processor 23 decrypts the packet data of the encrypted diagnostic information request that is interfaced in the mobile communication terminal 10, and transmits the self-diagnosis data received from the vehicle control device / self-diagnosis device 30 to the mobile communication terminal 10. It is in charge of the function to form a packet by encrypting it in a state necessary for transmission to a furnace.

The second interface unit 24 is a serial interface consisting of RS-232, for example, a vehicle control device / magnetic device using the K-line or L-line communication method to request data of the self-diagnostic information required by the mobile communication terminal 10. It transmits to the diagnostic apparatus 30, and is responsible for receiving a self-diagnosis result applied in the K-line or L-line communication method from the vehicle diagnostic apparatus / self-diagnostic apparatus 30.

The vehicle control device / self-diagnosis device 30 is an electronic control device such as an engine control device, a shift control device, a suspension control device, a brake control device, and a self-diagnosis device provided as a separate module of the vehicle. Status information is self-diagnosed and stored in the set database.

The information providing center 40 is a service provider that provides basic information for diagnosing a failure of a vehicle, and provides basic information on a method of diagnosing and repairing a failure of a vehicle and a failure diagnosis on a new vehicle type for a subscriber of a registered mobile communication terminal. Provides basic information and updated troubleshooting information and repair measures for a fee or free of charge, and includes a transceiver unit 41, a user authentication unit 42, a data retrieval unit 43, a database 44, and a main processor 45. )

Transmitting and receiving unit 41 is the use authentication request signal requested from the mobile communication terminal 10 connected to the Internet / online, basic information request for diagnosing the vehicle failure, updated information request, failure diagnosis basic information for new models and damaged The mobile communication terminal 10 receives the backup request of the failure diagnosis information and the like, and provides information on whether or not to authenticate the use authentication request, basic information on the required failure diagnosis, updated information, information on a new vehicle type, backup information, and the like. Responsible for sending to.

When the user authentication unit 42 receives a request for use authentication from the mobile communication terminal 10, the user authentication unit 42 analyzes the information on the corresponding terminal, that is, the subscriber registration number and password, etc. from the database 44 to determine whether the user is a registered subscriber. It is responsible for the authentication function to determine whether to provide a service to provide the basic information after detecting the.

The data retrieval unit 43 is responsible for retrieving from the database 44 basic information about a predetermined failure diagnosis required from the mobile communication terminal 10 that is authorized to use the service.

The database 44 stores data such as subscriber registration number of the mobile communication terminal 10 registered to receive basic information and basic information service for failure diagnosis of each vehicle type and parts, and a password thereof. It is in charge of storing function.

The main processor 45 provides an operation of providing basic information for fault diagnosis of each vehicle type to the mobile communication terminal 10 registered in the information providing center 40 and fault diagnosis basic information for the new vehicle type in the database 44. If set, the registered mobile communication terminal 10 is connected through a wireless channel, that is, a paging panel, and then the fault diagnosis basic information for the corresponding vehicle is downloaded by transmitting an SMS / IWF message.

Referring to the operation of performing a fault diagnosis of the vehicle in the present invention having the function as described above are as follows.

Since the communication of voice and text data through the relay of the base station using the mobile communication terminal 10 is performed in the same manner as the operation of the conventional mobile communication terminal, a description thereof will be omitted, and an operation for diagnosing a failure of the vehicle will be described. do.

In order to perform a fault diagnosis on a vehicle which has been driven or in operation, a mobile communication terminal 10 such as a cellular phone, a PCS, a PDA, etc., in which a fault diagnosis basic information on the vehicle is set in the database 13, is applied to the vehicle. The serial interface is connected to the data conversion system 20 installed and connected to the vehicle control device / self-diagnosis device 30.

Subsequently, when the power of the mobile communication terminal 10 is turned on and a diagnosis mode and a vehicle type and a diagnosis position for performing a fault diagnosis of the vehicle are selected through a separate function key or a key matrix, the mobile communication terminal 10 may be selected. The main processor 16 executes the corresponding application program, enters the vehicle troubleshooting mode, searches the database 13, and determines whether failure diagnosis basic information for the vehicle is set.

If it is determined that the basic information for the fault diagnosis of the vehicle model is not set in the database 13 or that the basic information for the fault diagnosis which is set in advance is broken, the information providing center 40 is wirelessly connected. After accessing the channel, the user registration number and password are inputted to request service authentication for downloading basic diagnosis information.

At this time, the user authentication unit 41 of the information providing center 40 is a database 44 for the authentication request of the mobile communication terminal 10 received through the transmission and reception unit 41 under the control of the main processor 45. Search for whether the registration of the corresponding mobile terminal 10 and whether or not the password match to determine whether the subscriber is already registered.

If it is determined that the mobile communication terminal 10 of the subscriber registered in advance, the authentication permission information that can download the failure diagnosis basic information is provided, and the corresponding failure diagnosis basic information according to the request for providing the basic information is provided in the database ( 45) access the data from the SMS / IWF method or a predetermined method, download the corresponding data to the mobile communication terminal 10, and if it is determined that the mobile subscriber terminal 10 of the unregistered subscriber is desired, After inquiring, if a subscriber registration is desired, a simple registration procedure for providing a user number, password, and information is performed to register the corresponding mobile communication terminal 10 as a subscriber, and then provides the desired diagnosis basic information.

If it is determined that the failure diagnosis basic information for the vehicle is set in the database of the mobile communication terminal 10 which has entered the failure diagnosis mode according to the selection of the failure diagnosis mode of the driver or the manager, the mobile communication terminal ( The main processor 16 of 10), for example, sends a request signal for the self-diagnosis data detected and stored while the vehicle is running to the data conversion system 20 side connected via the interface unit 15 made of RS-232. Encrypts and transmits a predetermined packet.

The main processor 21 of the data conversion system 20 receives the request signal for the self-diagnosis data received by being encrypted in a predetermined packet state by the mobile communication terminal 10 through the first interface 22. After decoding through the second interface unit 24, the second interface unit 24 may perform data communication with the vehicle control device / self-diagnostic device 30 by requesting the decoded self-diagnosis data. It converts the data of the K-line or L-line communication method to the vehicle control device / self-diagnosis device 30 side.

At this time, the vehicle control device / self-diagnostic apparatus 30 is diagnosed during operation according to the request signal of the self-diagnosis data of the mobile communication terminal 10 requested through the data conversion system 20 and stored in the memory means of each vehicle The self-diagnostic data for the part is accessed and the corresponding data is transmitted to the data conversion system 20 by K-line or L-line communication.

The main processor 21 of the data conversion system 20 serializes the self-diagnosis data received by the vehicle control device / self-diagnosis device 30 through L-line or K-line communication through the second interface unit 24. After converting the data into a predetermined packet according to the communication method with the mobile communication terminal 10 through the packet processing unit 23, encrypting and transmitting the data to the mobile communication terminal 10 through the first interface unit 22. do.

The main processor 16 of the mobile communication terminal 10 decrypts the self-diagnosis data of the vehicle received as an encrypted packet from the data conversion system 20 through the interface unit 15 and then through the vehicle diagnosis unit 14. Diagnose the failure.

At this time, the vehicle diagnosis unit 14 analyzes the received self-diagnosis data through the failure diagnosis basic information set in the database 13 to diagnose the abnormality of each part of the vehicle, and then the result information and repair thereof. The countermeasure is displayed to the driver through the display window of the mobile communication terminal 10 and the corresponding data diagnosed at the same time as the zoom is updated and stored in the database 14.

In addition, as a result of the failure of the vehicle diagnosed through the mobile communication terminal 10, the information providing center 40 is set by the driver or the administrator in the mobile communication terminal 10, for example, facsimile or Send it to a landline.

In the above description, a process of diagnosing whether the vehicle has been diagnosed as a failure or repairing response method from the self-diagnosis data stored in the vehicle control device / self-diagnosis device 30 of the vehicle which has been driven has been described. When the administrator of the mobile communication terminal 10 is connected in the above-described operation and selects the failure diagnosis mode, the failure diagnosis is performed in real time through the above-described operation on the self-diagnosis information detected during the operation of the vehicle. Since the result of the operation is output, it is possible to obtain information on the state of the vehicle currently running and the information that can be operated as the current failure state, so that quick repair information can be performed.

In addition, the main processor 45 of the information providing center 40 when the failure diagnosis basic information about the vehicle is newly registered in the database 44 of the information providing center 40 according to the release of a new vehicle model from the company. After the basic information on the newly diagnosed fault diagnosis is processed as an SMS message, the entire mobile communication terminal 10 registered as a service providing subscriber is connected to the paging channel through the transceiver 41 to receive the basic information. The SMS / IWF message is transmitted and downloaded to the database 13 of the mobile communication terminal 10.

The wireless communication channel connection between the mobile communication terminal 10 and the information providing center 40 uses a conventional mobile communication service network or a separate communication network, preferably using a conventional mobile communication service network. Shall be.

The above operation will be described in detail with reference to FIG. 2 as follows.

The driver or manager of the vehicle connects the mobile control terminal 10 to the vehicle control device / self-diagnosis device 30 in which the self-diagnosis data is stored through the data conversion system 20 in order to diagnose whether the vehicle is in trouble. In operation S101, when the vehicle diagnosis mode is selected through input of a separate function key or a set key code (S102), the main processor 16 in the mobile communication terminal 10 searches the database 13 to search for a current driver or the like. It is determined whether the failure diagnosis basic information on the vehicle model and the diagnosis position selected by the vehicle manager is set (S103) (S104).

In the above determination, if it is determined that the information on the vehicle selected for the fault diagnosis is set in the database of the mobile communication terminal 10, the main processor 16 of the mobile communication terminal 10 may operate the interface unit 15. Requesting the self-diagnosis data stored in the vehicle control device / self-diagnostic apparatus 30 side (S105).

At this time, the data conversion system 20 decrypts the request signal of the self-diagnosis data received as an encrypted packet from the interface unit 15 of the mobile communication terminal 10 through the packet processing unit 23 and then K-line or L. It converts to a line communication method and requests the vehicle control device / self-diagnosis device 30 to provide diagnostic information.

Subsequently, the data of the self-diagnosis information stored in the memory means of the vehicle control device / self-diagnosis device 30 is the second interface part 24 of the data communication conversion system 20 by the K-line or L-line communication method. When received, the main processor 21 of the data conversion system 20 processes the received self-diagnosis information data into a predetermined packet that can communicate with the mobile communication terminal 10 through the packet processor 23, and then encrypts the first data. It transmits to the mobile communication terminal 10 through the interface unit 22.

When the mobile communication terminal 10 receives the self-diagnosis data stored in the memory means of the vehicle control device / self-diagnostic device 30 as described above (S106), the vehicle diagnostic unit 14 in the mobile communication terminal 10 is Analyze the received self-diagnosis data through the basic information on the diagnosis of the failure set in the database 13 (S107), and diagnose the abnormality, and then display the corresponding result and repair measures through the display window. And outputs it (S108-S109).

In addition, in the determination of S104, the fault diagnosis data for the vehicle is selected from the fault diagnosis for the new vehicle model which is not set in the database 13 in the mobile communication terminal 10, or the fault diagnosis data which is set in advance is backed up. In the lost state due to the exchange of power or for other reasons, the main processor 16 transmits the information to the wireless mobile communication through the transmitter / receiver 11 in order to download fault diagnosis information about the vehicle from the information providing center 40. The providing center 40 is connected (S110).

At this time, when the mobile communication terminal 10 and the information providing center 40 are connected by wireless communication, the driver or the manager of the vehicle requests a user authentication permission for downloading the troubleshooting information by inputting his subscriber number and password, The user authentication unit 42 of the information providing center 40 analyzes the received user number and password to determine whether the subscriber is registered to provide the service.

If it is determined that the subscriber has been registered in the above, the user authentication unit 42 grants the mobile communication terminal 10 a user authentication for enabling the download of the diagnosis information of the vehicle to the mobile communication terminal 10. The service providing license is obtained (S111).

As the authentication permission is granted to the mobile communication terminal 10 as described above, when the user of the mobile communication terminal 10 requests failure diagnosis information for a desired vehicle according to a message provided on the screen, the information providing center 40 The main processor 45 accesses the corresponding vehicle failure diagnosis information from the database 44 according to the requested signal, processes it into an SMS / IWF type packet, and transmits it to the mobile communication terminal 10.

Therefore, the main processor 16 of the mobile communication terminal 10 sets the failure diagnosis information received from the information providing center 40 in the database 13 and then operates as described above through the vehicle diagnosis unit 14. By requesting the self-diagnosis information data to the vehicle control device / low diagnostic device 30, and analyzes the received self-diagnosis information data through the downloaded failure diagnosis information data to diagnose the abnormality of the vehicle and the result Outputs it (S112).

If it is determined that the mobile communication terminal 10 connected to the wireless communication is not a registered subscriber, it is recommended to register the subscriber and then perform a corresponding operation according to the subscriber's intention, and then provide basic information about the vehicle failure diagnosis. If the registered subscriber or password is different, it is required to re-enter the password, and if it is determined that the password is different for a predetermined number of times, it is determined that the request for fault diagnosis information of the abnormal mobile communication terminal 10 is abnormal. The connection with the mobile communication terminal 10 is forcibly interrupted.

In addition, the main processor 45 of the information providing center 40 when the failure diagnosis basic information or upgraded failure diagnosis basic information about a new model released from a company is registered in the database in the information providing center 40 After the failure diagnosis basic information and upgrade information to be registered is formed into an SMS message, the information data for diagnosing a vehicle failure is modified and updated by transmitting to the entire mobile communication terminal 10 that has registered service provision through a paging channel.

As described above, the present invention diagnoses a failure of a vehicle using a portable mobile communication terminal, thereby providing convenience and promptness to the diagnosis of a vehicle. It is possible to obtain low-cost maintenance of the car, and even when a new model is released or the diagnosis information is upgraded, only the information center needs to upgrade the information about the vehicle, so that all users of the information are not economically burdened. Get information about new and old models.

In addition, the economical efficiency is provided by acquiring the troubleshooting and repair measures through the vehicle diagnosis using a mobile communication terminal that is easy to disseminate and handle the public without the expensive scanner for diagnosing the vehicle failure. In real-time analysis of the self-diagnostic information in the vehicle can diagnose the abnormality of the vehicle provides stability and reliability in operation.

Claims (12)

An information providing center for providing information for diagnosing the failure of the vehicle to the registered subscriber; A vehicle control device / self-diagnosis device for self-diagnosing and storing a failure during operation of the vehicle; A mobile communication terminal configured to set vehicle failure diagnosis information downloaded from the information providing center into a database, and communicate with the vehicle control device / self-diagnosis device to diagnose whether the vehicle has a failure and output a result thereof; And a data conversion system for converting data transmitted and received in order to match the data communication method between the mobile communication terminal and the vehicle control device / self-diagnostic device. The method according to claim 1, The information providing center receives and receives means for requesting use authentication and fault diagnosis basic information of a mobile communication terminal connected by wireless communication, and transmits and receives means for transmitting and receiving the request for use authorization and basic information on fault diagnosis to the mobile communication terminal. ; User authentication means for analyzing the authentication request of the mobile communication terminal to determine whether to provide a service; A database in which failure diagnosis information for each vehicle type and each part of each company and information for a mobile communication terminal subscriber are set; Data retrieval means for retrieving from a database and accessing corresponding information according to a request of the mobile communication terminal; Vehicle self-diagnosis system using a mobile communication terminal, characterized in that consisting of a processor that performs a general operation for the operation of the information providing center. The method according to claim 1, The information service center processes the corresponding information as an SMS / IWF message and transmits it to the registered subscriber mobile communication terminal through the paging channel when the troubleshooting information or the updated troubleshooting information is set in the database. Vehicle self-diagnosis system using a mobile communication terminal. The method according to claim 1, The mobile communication terminal includes transmitting and receiving means for transmitting and receiving voice and text data through a relay of a base station and basic information of a vehicle failure diagnosis with an information providing center in an SMS / IWF message; A database for storing basic information on vehicle failure diagnosis received from the information providing center; Data updating means for updating a result of new vehicle type or changed troubleshooting basic information and diagnosis data currently in progress in the target vehicle and setting the result in a database; Vehicle diagnostic means for performing fault diagnosis on self-diagnostic information received from the vehicle control device / self-diagnostic device; Interface means for interfacing the request signal of the self-diagnosis data and the received self-diagnosis information required for the vehicle control device / self-diagnosis device; Vehicle self-diagnosis system using a mobile communication terminal, characterized in that consisting of a processor for controlling the overall operation for diagnosing the failure of the vehicle. The method according to claim 1, The data conversion system comprises: first interface means for transmitting and receiving encrypted packet data with a mobile communication terminal; Second interface means for receiving a request for diagnostic information and the requested self-diagnostic information in a k-line or L-line communication manner with the vehicle control device / self-diagnostic apparatus; Packet processing means for encrypting / decrypting packet data transmitted and received between mobile communication terminals; A vehicle self-diagnosis system using a mobile communication terminal, characterized by comprising a processor for controlling the overall operation of the data communication between the mobile communication terminal and the vehicle control device / self-diagnostic device. The method according to claim 1, The data conversion system is a vehicle self-diagnosis system using a mobile communication terminal, characterized in that integrally mounted as a separate module to the vehicle control device / self-diagnostic device. The method according to claim 1, The data conversion system is a vehicle self-diagnosis system using a mobile communication terminal, characterized in that consisting of a separate module connected to the mobile communication terminal via a removable method. Connecting the mobile communication terminal to the vehicle control device / self-diagnosis device through a data conversion system and then selecting a vehicle failure diagnosis mode; The processor of the mobile communication terminal searching the database to determine whether failure diagnosis information of the vehicle to be diagnosed is set according to the vehicle failure diagnosis mode selected; Requesting transmission of self-diagnosis information data to the vehicle control device / self-diagnosis device side through a data conversion system when the failure diagnosis information of the corresponding vehicle to be diagnosed is set; And diagnosing the self-diagnosis information data received from the vehicle control device / self-diagnosis device through the failure diagnosis information set in the database, and then outputting a text or a voice for the diagnosis result and the repair response method. Vehicle self-diagnostic method using a mobile communication terminal. The method according to claim 8, The diagnosed result and the repair countermeasure may be transmitted to a user-set other terminal of the mobile communication terminal at a designated time. The method according to claim 8, The mobile communication terminal outputs information on a diagnosis history and a diagnosis history for a predetermined period of time according to a user selection according to a user's selection. The method according to claim 8, If the basic information on the diagnosis of the vehicle failure selected by the driver or the manager is not set in the database or is determined to be in a lost state, automatically accessing the information providing center to be authorized to provide the service; When the authentication for the provision of the service is provided from the information providing center, the vehicle using the mobile communication terminal further comprising the step of requesting the desired basic diagnosis information and downloading the corresponding basic diagnosis information and setting in the database. Self-diagnosis method. The method according to claim 8, When the fault diagnosis mode is selected through a mobile communication terminal in a running vehicle, the vehicle self-diagnosis using the mobile communication terminal, which analyzes the self-diagnosis information of the vehicle detected in real time and outputs the information to the driver. Way.