KR102463999B1 - Smart OBD Scanning Device and Driving Method Thereof - Google Patents

Abstract

The present invention relates to a smart OBD scanning device and a driving method thereof, which can switch a wireless connection mode of a smart OBD scanning module and allow the smart OBD scanning module to perform the optimal diagnosis sequence without restriction. A smart OBD scanning device according to embodiments of the present invention comprises a communication interface unit for communicating with each of a diagnostic device and a control device to diagnose a vehicle in each process, and a control unit for connecting to the diagnostic device in a first wireless connection mode when the diagnostic device is provided in a process to which the vehicle is moved for diagnosis, to perform a diagnosis operation under the control of the diagnostic device, and controlling the communication interface in a second wireless connection mode when the diagnostic device is not provided in the process, to automatically connect to the control device and perform a self-diagnosis operation.

Description

Smart OBD Scanning Device and Driving Method Thereof

The present invention relates to a smart OBD scan device and a method of driving the device, and more particularly, it is possible to switch the wireless connection mode of the smart OBD scan module in order to transmit, for example, the movement and process position of the vehicle to the control server for each vehicle. It relates to a smart OBD scan device and a method of driving the same, which present a method for providing a method and implement a method in which the smart OBD scan module can perform an optimal diagnosis sequence without process restrictions.

An automobile is a complex mechanical device composed of many mechanical parts, but various electronic parts are also employed. In particular, with the rapid development of electronic control technology, many devices have been electronically developed in order to improve fuel efficiency, safety, or convenience even in automobiles. For example, an electronic control unit (ECU) for controlling an engine and an anti-lock brake system (ABS) or a transmission control unit (TCU) for controlling a transmission are adopted in most automobiles, and in addition, a traction control system (TCS) : Traction Control System (ESP), Electronic Stability Program (ESP), Electronic Control Suspension (ECS), Limited Slip Differential (LSD), Electronic Brake Force Distribution (EBD) Various computer control systems have been adopted, and are implemented separately from the electronic control device or within the electronic control device. The failure of the electronic control device increases the possibility of an accident as much as a mechanical failure and may act as a factor threatening the life and health of the occupant. In particular, since the electronic control device controls the engine based on signals sensed by a plurality of sensors, the possibility that the engine operates abnormally is increased even if some sensors are unstable or malfunction. In this respect, the inspection and diagnosis of manufactured products on the production line can be seen as directly related to the life and safety of passengers.

In order for automobile manufacturers to perform necessary diagnosis and inspection for each process, barcode scanning by barcode scanning equipment installed in each process, RFID information acquisition, process entry by other sensors, and vehicle information are recognized, and the diagnostic system is the client. That is, the service requester wirelessly connects to the smart OBD scan module and proceeds with the registered diagnosis sequence.

However, since the wireless connection mode can only be used in a process with a diagnostic system and it is impossible to determine the process location of the vehicle, self-diagnosis of the smart OBD scan module cannot be performed.

Korean Patent Publication No. 10-2332941 (2021.11.25) Korean Patent Publication No. 10-2105821 (2020.04.23)

An embodiment of the present invention proposes a method for switching the wireless connection mode of the smart OBD scan module in order to transmit, for example, the movement and process location of the vehicle to the control server for each vehicle, and the smart OBD scan module is optimized without process restrictions. An object of the present invention is to provide a smart OBD scanning device implementing a method capable of performing a diagnostic sequence and a method of driving the same.

A smart OBD scanning device according to an embodiment of the present invention includes a communication interface unit that communicates with a diagnostic device and a control device for each process for diagnosing a vehicle, and the diagnostic device for any process in which the vehicle moves for the diagnosis. is provided in a first wireless connection mode to connect to the diagnostic device and perform a diagnostic operation under the control of the diagnostic device, and control the communication interface unit when the diagnostic device is not provided in the arbitrary process. 2 includes a control unit that automatically connects to the control device in a wireless connection mode and performs an autonomous diagnosis operation.

The control unit operates as a receiver device for receiving data when the diagnosis device is provided, and performs a diagnosis operation as a service requester that automatically connects to the control device and transmits data when the diagnosis device is not provided. .

The control unit recognizes the process of the location where the vehicle moves based on the overall process sequence data stored in advance in relation to the overall process sequence, and changes a wireless connection method for communicating with the diagnosis device or the control device according to the recognition result. can

The control unit controls the first communication unit of the communication interface unit in the first wireless connection mode to communicate with the diagnosis device, and controls the second communication unit of the communication interface unit in the second wireless connection mode to communicate with the control device and the first communication unit and the second communication unit may perform heterogeneous communication having different communication protocols.

In a plurality of processes in which the diagnosis device is not provided, a plurality of smart OBD scan devices may perform autonomous diagnosis according to the control of the control device.

In addition, the driving method of the smart OBD scan device according to an embodiment of the present invention includes the steps of: a communication interface unit communicating with a diagnostic device and a control device for each process of the vehicle for diagnosis, and a control unit allowing the vehicle to perform the diagnosis When the diagnostic device is provided in any moving process, the diagnostic device is connected to the diagnostic device in the first wireless connection mode and a diagnostic operation is performed under the control of the diagnostic device, and when the diagnostic device is not provided in the arbitrary process, the communication and controlling the interface unit to automatically connect to the control device in a second wireless connection mode to perform an autonomous diagnosis operation.

In the performing step, when the diagnosis device is provided, the device operates as a receiver device that receives data, and when the diagnosis device is not provided, the diagnosis operation is performed as a service requester that automatically connects to the control device and transmits data. can

The performing step is a wireless connection method of recognizing the process of the location where the vehicle moves based on the overall process sequence data stored in advance in relation to the overall process sequence and communicating with the diagnosis device or the control device according to the recognition result. can be changed.

The performing may include controlling the first communication unit of the communication interface unit in the first wireless connection mode to communicate with the diagnosis device, and controlling the second communication unit of the communication interface unit in the second wireless connection mode to control the control device and, the first communication unit and the second communication unit may perform heterogeneous communication with different communication protocols.

In a plurality of processes in which the diagnosis device is not provided, a plurality of smart OBD scan devices may perform autonomous diagnosis according to the control of the control device.

1 is a diagram illustrating an autonomous diagnosis system of a smart OBD scanning device according to an embodiment of the present invention;
2 is a view for explaining a wireless connection mode switching method of the smart OBD scanning device of FIG. 1;
3 is a block diagram illustrating a detailed structure of the smart OBD scanning device of FIG. 1;
4 and 5 are views showing various examples of the self-diagnosis method of the smart OBD scanning device of FIG. 1, and
6 is a flowchart illustrating a driving process of the smart OBD scanning device of FIG. 1 .

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

1 is a diagram illustrating an autonomous diagnosis system of a smart OBD scanning device according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining a wireless connection mode switching method of the smart OBD scanning device of FIG. 1 .

As shown in FIG. 1 , the autonomous diagnosis system (hereinafter, self-diagnosis system) 90 of the smart OBD scanning device according to the embodiment of the present invention includes a smart OBD scanning device unit 100 and a communication relay unit 110 . , including some or all of the diagnostic device unit 120 and the control unit (unit) 130 .

Here, "including some or all" means that some components such as the communication relay unit 110 are omitted to configure the autonomous diagnosis system 90, so that the smart OBD scan module of the smart OBD scan unit 100, etc. The scanning device 101 of the diagnosing unit 120 performs direct communication (eg, P2P communication, etc.) Part or all of the device 130 means that it can be configured by being integrated into the relay devices 111 and 113 of the communication relay unit 110, and it is described as including all in order to help a sufficient understanding of the invention. do.

The smart OBD scanning device unit 100 includes, for example, a smart OBD scanning device 101 provided for each vehicle to perform diagnosis or inspection of vehicles produced in an automobile manufacturing plant. The smart OBD scan device 101 constituting the smart OBD scan device unit 100 is an electronic diagnostic system for vehicle measurement and control. System information or information such as failures can be viewed on the vehicle console or external device. The smart OBD scan device 101 includes a wireless communication function such as Wi-Fi and Bluetooth itself, and is generally used in connection with a separate external device, for example, a smart terminal, a display device, and the like. Accordingly, the smart OBD scanning device 101 may include a smart terminal such as a smart phone, a tablet PC, a laptop computer, etc., and may include a terminal device manufactured separately for operation according to an embodiment of the present invention. In the embodiment of , it will not be particularly limited to any one form.

The smart OBD scan device 101 according to an embodiment of the present invention is a smart OBD scan device 101 such as an existing diagnostic facility installed in each process of an automobile manufacturing plant and a smart OBD scan module, and 1 through Wi-Fi or Bluetooth wireless communication. : It enables autonomous diagnosis of a plurality of smart OBD scan devices 101 through vehicle diagnosis and control of the control device 130 such as a control server without process restrictions. To this end, the smart OBD scan device 101 specifically uses a universal unique identifier (UUID) and a local name through an advertisement device (eg, a beacon device, etc.) such as the communication relay device 111. Transmits to the smart OBD scan device 101 using Bluetooth Low Energy (BLE), and enters the wireless connection mode (Client, Server) according to the UUID and Local Name registered in the smart OBD scan device 101 in advance. The smart OBD scanning device 101 operates as a service resource provider (Server) in the operation of the existing diagnostic facility by automatically switching, and in the process that needs to be controlled by the control device 130 such as a control server, the smart OBD scanning device 101 operates as a service requester (Client) and performs self-diagnosis without process restrictions.

In FIG. 2, the smart OBD scanning device 101 according to an embodiment of the present invention operates as a receiver device (Observer) that receives control from an advertiser or receives data (refer to (a) of FIG. 2) ) and the process of operating as a service requester (refer to (b) of FIG. 2) respectively. The advertiser means a device on the side that transmits data by broadcasting, and may be, for example, a diagnostic device 121 or a beacon device connected to the diagnostic device 121 or an access point agreement communication relay device 111. can Therefore, the advertiser can perform beacon communication. On the other hand, an observer means a device on the side that scans (data or identification information) with a receiver. This is mainly a user terminal device such as a smart phone.

For example, when a diagnostic system such as the diagnostic device 121 is provided in each process, the smart OBD scanning device 101 performs a diagnostic operation under the control of the corresponding diagnostic device 121 . More precisely, the diagnosis device 121 connects to the smart OBD scan device 101 to perform a diagnosis function. In addition, the smart OBD scan device 101 connects to the control device 130 and performs a self-diagnosis function. To this end, an AP connection mode switching operation for accessing the first communication relay device 111 or the second communication relay device 113 constituting the communication relay unit 110 is performed. It is to switch the process connection mode to information by BLE communication of the Advertise Device. Here, the Advertise Device may be the communication relay devices 111 and 113 constituting the communication relay unit 110 .

In other words, the smart OBD scanning device 101 according to the embodiment of the present invention recognizes the process movement position of the vehicle and the Advertiser to which BLE is applied to switch the wireless connection mode of the smart OBD scanning device 101 is UUID, Local The name is transmitted, and the smart OBD scan device 101 receives the data and switches the wireless connection mode, so that wireless connection with the existing system and connection with the control device 130 such as the control server are possible. Autonomous execution of optimized diagnostic sequences. UUID includes device identification information such as device ID, but Local Name may include process information such as process name of each process, (physical) location or process sequence, and overall process sequence.

For example, the smart OBD scan device 101 can receive UUID and Local Name information from the Advertiser, for example, the communication relay unit 110, acting as a beacon (operating) as a BLE Observer, and from the information, the next process recognition and Together, determine the connection mode (mode). The smart OBD scanning device 101 has two Wi-Fi connection modes, for example, and automatically switches the modes according to the process. Here, the two Wi-Fi connection modes are the Soft AP mode (or the first wireless connection mode) and the Client mode (or the second wireless connection mode) for accessing the AP. UUID and Local Name are registered in the smart OBD scanning device 101 in advance, and the process sequence is also registered, so the advertiser device installed in the process, for example, the first communication relay device 111 or the second communication relay device 113. When approaching the , information on the process is received to determine what process the process is and the connection mode. The smart OBD scanning device 101 is equipped with Wi-Fi and BLE modules, and BLE scans data of an Advertiser as an Observer. The BLE module of the smart OBD scanning device 101 may be a first communication unit communicating with the diagnosis device 121 , and the Wi-Fi module may be a second communication unit communicating with the control device 130 .

The communication relay unit 110 may include a first communication relay device 111 and a second communication relay device 113 . Of course, the communication relay devices 111 and 113 constituting the communication relay unit 110 may be configured as one device, but only the first communication module and the control device 130 for communicating with the diagnosis device 121 . ) and may include a second communication module for communication. Of course, each communication module may perform heterogeneous communication with different communication protocols. In other words, the first communication relay device 111 may perform BLE communication with the smart OBD scanning device 101 according to the request of the diagnosis device 121 . It operates as an Observer as a receiver device. On the other hand, the second communication relay device 113 automatically connects to the control device 130 according to the request of the smart OBD scanning device 101 , and the smart OBD scanning device 101 operates according to the request of the control device 130 . Wi-Fi communication of bi-directional communication can be made for Of course, not only Bluetooth or Wi-Fi, but also communication such as Zigbee or infrared light can be used, so in the embodiment of the present invention, it will not be particularly limited to such a communication method. that communication can take place.

For example, the communication relay devices 111 and 113 of the communication relay unit 110 provided in each process may provide device identification information related to their own process to each vehicle entering the process. At this time, when the smart OBD scanning device 101 pre-stores data for each process, only the device identification information provided by the communication relay unit 110 compares or searches with internal data and determines the vehicle according to the result. You can recognize which process you are entering. Therefore, the database stored in the internal memory is searched to determine whether to switch the AP access mode based on the device identification information. For example, when the proportion of the diagnostic device 121 installed in the overall process is large, the diagnostic device 121 is connected and the diagnosis is performed, but in a process without the diagnostic device 121, the AP connection mode is used. is to convert The communication relay devices 111 and 113 of the communication relay unit 110 may participate in this operation.

The diagnostic device 120 may be provided in at least one of a plurality of processes for diagnosing and inspecting the vehicle. In an embodiment of the present invention, an existing diagnostic system in which the diagnostic apparatus 121 is installed in a specific process and the diagnostic apparatus 121 is not installed in other processes may be used as it is. Accordingly, in the exemplary embodiment of the present invention, the existing diagnosis system can be efficiently used through a simple change of a program or the like without costly changing the existing diagnosis system. In order to perform the necessary diagnosis and inspection for each process, each process can recognize the information of the vehicle entering the process by scanning the barcode, obtaining RFID information, and other sensors through the barcode scanning devices 123 and 125 .

Then, the diagnosis apparatus 121 may diagnose the vehicle through a vehicle diagnosis program in a specific process and determine whether there is an abnormality. The production line of the vehicle includes a conveyor system, which is, for example, a conveyor belt or a conveyor roller system, respectively, for ABS ECU Filling, Variant Coding or All ECU programming, electrical and operation. It may include processes such as testing, cranking & EVAP, wheel alignment and headlamp, Roll-DVT testing, shower testing, ECOS testing, etc. Accordingly, the diagnosis apparatus 121 may determine whether the vehicle is abnormal by performing communication with the smart OBD scanning apparatus 101 mounted on the vehicle in these processes.

The control device (unit) 130 may include a control server, and may include a DB connected to the control server. The control device 130 according to an embodiment of the present invention may transmit the movement and process position of the vehicle to each vehicle. There may be various methods for the control device 130 to determine the location of the vehicle, for example, the communication relay device 111, 113) can be found by measuring the distance. That is, since the communication relay devices 111 and 113 are fixed, they can have fixed position coordinate values, and can determine the moving position of the vehicle based on the fixed position coordinate values by calculating the direction and distance through signal strength. In addition, when the device identification information is acquired through communication with the communication relay devices 111 and 113, the control device 130 compares the device identification information with pre-stored internal data, for example, the entire process sequence data, which process Or it can be determined whether it is in a location. The control device 130 according to an embodiment of the present invention provides a method for switching the wireless connection mode of the smart OBD scanning device 101 so that the smart OBD scanning device 101 performs an optimal diagnosis sequence without process restrictions. make it possible Of course, the control device 130 may perform an operation for controlling the process performed in each process of the production line.

Above all, the control device 130 according to the embodiment of the present invention performs self-diagnosis according to the service request of the smart OBD scanning device 101 in a process in which the diagnostic device 121 is not provided. Of course, a plurality of processes are performed in the production line, and even when the smart OBD scan device 101 located in the plurality of processes requests autonomous diagnosis, the control device 130 may simultaneously perform the self-diagnosis. That is, self-diagnosis is performed in the form of 1: multi. Simultaneous remote diagnosis of multiple vehicles by the control device 130 is possible. For example, the smart OBD scanning device 101 of the vehicle entering each process determines that the AP connection mode should be switched in the currently entering process. In other words, when entering the process, the internally pre-stored data is searched based on the device identification information provided from the communication repeater 113 of the communication repeater unit 110, and based on this, the diagnosis device 121 is assigned to the corresponding process. ) by recognizing that there is no automatic connection to the control device 130 through mode switching to perform an autonomous diagnosis operation.

3 is a block diagram illustrating a detailed structure of the smart OBD scanning device of FIG. 1 .

As shown in FIG. 3 , the smart OBD scanning device 101 according to an embodiment of the present invention includes a part of the communication interface unit 300 , the control unit 310 , the vehicle diagnosis unit 320 , and the storage unit 330 , or includes all

Here, “including some or all” means that some components such as the storage unit 330 are omitted to configure the smart OBD scanning device 101, or some components such as the vehicle diagnosis unit 320 are configured by the control unit ( 310), which means that it can be configured by being integrated with other components, etc., and will be described as including all to help a sufficient understanding of the invention.

The communication interface unit 300 communicates with the diagnostic device 121 when the diagnostic device 121 exists in each process when performing necessary diagnosis and inspection for each process in, for example, a vehicle manufacturing process, and communicates with the diagnostic device. In the process where 121 does not exist, the wireless connection mode is switched to connect to the control device 130 . For this operation, the communication interface unit 300 may operate the first communication module and the second communication module, and if the first communication module performs BLE communication with the diagnostic device 121, the second communication module is the control device ( 130) and may perform communication such as Wi-Fi. More precisely, the communication interface unit 300 operates the first communication module and the second communication module under the control of the control unit 310 to perform heterogeneous communication.

In addition, the communication interface unit 300 operates as a receiver device that receives data from the diagnosis device 121 when communicating with the diagnosis device 121 , and as a client terminal requesting a service when communicating with the control device 130 . can work

The control unit 310 is in charge of overall control operations of the communication interface unit 300 , the vehicle diagnosis unit 320 , and the storage unit 330 of FIG. 3 . The controller 310 may pre-store data related to various types of process devices and process sequences in the storage 330 in order to perform an operation according to an embodiment of the present invention. For example, the first process may store information about which device controls communication and which process is for vehicle diagnosis. Accordingly, the control unit 310 receives device identification information, etc. from the communication relay devices 111 and 113 of the communication relay device 110 of FIG. 1 when the smart OBD scanning device 101 enters each process, It determines which process is currently entering through comparison with stored data, determines whether to communicate with the diagnostic device 121 or the control device 130 in the corresponding process, and performs operations such as switching the wireless connection mode. carry out Of course, the actual operation of the corresponding operation is performed by the vehicle diagnosis unit 320 , and the controller 310 may perform the above operation in connection with the vehicle diagnosis unit 320 .

The vehicle diagnosis unit 320 performs diagnosis by communication with the diagnosis device 121 in each process of the production line for performing diagnosis or inspection of the vehicle, or more precisely, whether to perform diagnosis in the first wireless connection mode. It is determined whether to perform the diagnosis in the second wireless connection mode for performing autonomous diagnosis by automatically connecting to the control device 130 . Here, the diagnosis with the diagnosis device 121 may be 1:1 vehicle diagnosis. On the other hand, self-diagnosis with the control device 130 can be viewed as a plurality of smart OBD scan devices 101 performing self-diagnosis without process restrictions, and thus can be one-to-many vehicle diagnosis. In other words, it can be seen that the vehicle diagnosis unit 320 performs the autonomous diagnosis of the vehicle in the A process with the control device 130 and simultaneously performs the autonomous diagnosis of the vehicle in the B process together with the control device 130 .

As the vehicle enters each process, the vehicle diagnosis unit 320 automatically switches the wireless connection mode according to the pre-stored UUID or Local Name so that wireless connection with the existing system and connection with the control device 130 are possible. , to autonomously perform a diagnostic sequence optimized for the process. For example, the smart OBD scanning device 101 may receive UUID and Local Name information from an Advertiser serving as a beacon as a BLE Observer, and determines a connection mode along with next process recognition from the corresponding information. The vehicle diagnosis unit 320 performs an operation related thereto. For example, if data of a process sequence having a sequence of A, B, C, and D is pre-stored in the pre-stored data, when identification information or Local Name information corresponding to A is received, the vehicle diagnosis unit 320 is It is possible to recognize the currently entering process by comparing it with the pre-stored sequence data. Accordingly, it is possible to perform a quick diagnosis operation by automatically switching the wireless connection mode at the same time as entering each process.

The storage 330 may temporarily store or permanently store various types of data processed under the control of the controller 310 . For example, sequence data relating to the entire process may be permanently stored. Also, when data for diagnosis is provided from the diagnosis apparatus 121 of FIG. 1 , the storage unit 330 may temporarily store it under the control of the controller 310 and then provide it to the vehicle diagnosis unit 320 .

In addition to the above, the communication interface unit 300, the control unit 310, the vehicle diagnosis unit 320, and the storage unit 330 of FIG. 3 may perform various operations, and since the other details have been sufficiently described above, the contents I want to replace them with

The communication interface unit 300, the control unit 310, the vehicle diagnosis unit 320, and the storage unit 330 of FIG. 3 according to an embodiment of the present invention are composed of hardware modules physically separated from each other, but each module has an internal You will be able to store software for performing the above operation and execute it. However, since the software is a set of software modules, and each module can be formed of hardware, it will not be particularly limited to the configuration of software or hardware. For example, the storage unit 330 may be a hardware storage (storage) or a memory (memory). However, since it is possible to store information in software (repository), it will not be particularly limited to the above.

Meanwhile, as another embodiment of the present invention, the control unit 310 may include a CPU and a memory, and may be formed as a single chip. The CPU includes a control circuit, an arithmetic unit (ALU), an instruction interpreter and a registry, and the memory may include a RAM. The control circuit performs a control operation, the operation unit performs an operation operation of binary bit information, and the instruction interpreter performs an operation of converting a high-level language into a machine language and a machine language into a high-level language, including an interpreter or a compiler. , the registry may be involved in software data storage. According to the above configuration, for example, at the beginning of the operation of the smart OBD scanning device 101, the data operation processing speed is increased by copying the program stored in the vehicle diagnosis unit 320 and loading it into memory, that is, RAM, and then executing it. can be increased quickly. In the case of a deep learning model, it can be executed by accelerating the execution speed by using the GPU memory rather than RAM (RAM).

4 and 5 are views showing various examples of the self-diagnosis method of the smart OBD scanning device of FIG. 1 .

For convenience of explanation, referring to FIGS. 4 and 5 together with FIG. 1 , the autonomous diagnosis system 90 according to an embodiment of the present invention provides the first to first to first steps in a conveyor belt system as shown in FIG. 4 for vehicle diagnosis. 5 process can be performed. In this case, the first process, the second process, and the fifth process may include the diagnostic apparatus 121 for diagnosing each process, and the third and fourth processes may not include the diagnostic apparatus 121 .

In this case, the smart OBD scanning device 101 according to the embodiment of the present invention operates in the first wireless connection mode in the first process, the second process, and the fifth process to communicate with each diagnostic device 121 to perform a diagnostic operation. However, in the third and fourth processes, the wireless connection mode is automatically switched based on the UUID or Local Name information obtained when entering each process, and the wireless connection mode is automatically connected to the control device 130 of FIG. will perform

In FIG. 4, a smart OBD scan device 101 equipped with BLE, an Advertise device equipped with BLE, for example, a communication relay device 111 such as an access point, and each diagnostic system in the diagnostic process and a remote diagnostic and self-diagnosis control device ( 130) is shown.

As in FIG. 5 , even when the process for diagnosis of a vehicle is configured in the form of constructing a conveyor belt system on both sides, autonomous diagnosis of the smart OBD scanning device 101 is possible, and thus the Simultaneous remote diagnosis is possible. For example, even if the identification information of the communication relay device 113 is the same, it is possible to determine which process the vehicle is in based on the location information of the vehicle. .

6 is a flowchart illustrating a driving process of the smart OBD scanning device of FIG. 1 .

For convenience of explanation, referring to FIG. 6 together with FIG. 1 , the smart OBD scanning device 101 according to an embodiment of the present invention communicates with the diagnostic device 121 and the control device 130 for each process of the vehicle for diagnosis. do (S600).

In addition, the smart OBD scan device 101 diagnoses in the first wireless connection mode (eg, operates as a BLE communication and receiver) when the diagnostic device 121 is provided (or exists) at any fixed station where the vehicle moves for diagnosis. It accesses the device 121 and performs a diagnostic operation under the control of the diagnostic device 121, and enters the second wireless connection mode (eg, operates as a Wi-Fi communication and a client) when the diagnostic device 121 is not provided in an arbitrary process. By controlling the communication interface unit, an autonomous diagnosis is performed by automatically connecting to the control device 130 (S610).

The smart OBD scanning device 101 may pre-store identification information of devices related to each process and information related to each process. In addition, information on the entire sequence, that is, the order of the process may be stored in advance. Therefore, when entering each process, the smart OBD scanning device 101 determines which process is the process and the connection mode based on the UUID and Local Name information provided from the surrounding communication relay devices 111 and 113. . Here, if the connection mode is the same as that of the previous process, the connection mode is maintained, but if the diagnosis is in a method different from the previous process, the connection mode is switched and the diagnosis operation is performed.

In addition to the above, the smart OBD scanning device 101 of FIG. 1 can perform various operations, and since other details have been sufficiently described above, those contents will be replaced.

Even though all components constituting the embodiment of the present invention are described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, all of the components may be implemented as one independent hardware, but a part or all of each component is selectively combined to perform some or all functions of the combined components in one or a plurality of hardware program modules It may be implemented as a computer program having Codes and code segments constituting the computer program can be easily deduced by those skilled in the art of the present invention. Such a computer program is stored in a computer-readable non-transitory computer readable media, read and executed by a computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium refers to a medium that stores data semi-permanently and can be read by a device, not a medium that stores data for a short moment, such as a register, cache, memory, etc. . Specifically, the above-described programs may be provided by being stored in a non-transitory readable recording medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

101: smart OBD scanning device 111, 113: communication relay device
121: diagnostic device 130: control device
300: communication interface unit 310: control unit
320: vehicle diagnosis unit 330: storage unit

Claims (10)

a communication interface unit that communicates with a diagnostic device and a control device for vehicle diagnosis for each process; and
When the diagnostic device is provided in a certain process in which the vehicle moves for the diagnosis, the diagnostic device is connected to the diagnostic device in a first wireless connection mode and a diagnostic operation is performed under the control of the diagnostic device. and a control unit configured to control the communication interface unit in a second wireless connection mode to automatically connect to the control unit to perform an autonomous diagnosis operation when the diagnosis apparatus is not provided;
The control unit recognizes the process of the location where the vehicle moves based on the overall process sequence data stored in advance in relation to the overall process sequence, and changes a wireless connection method for communicating with the diagnosis device or the control device according to the recognition result do,
The control unit controls the first communication unit of the communication interface unit in the first wireless connection mode to communicate with the diagnosis device, and controls the second communication unit of the communication interface unit in the second wireless connection mode to communicate with the control device and
The first communication unit and the second communication unit, a smart OBD scanning device for performing heterogeneous communication with different communication protocols. According to claim 1,
The control unit operates as a receiver device that receives data when the diagnosis device is provided, and performs a diagnosis operation as a service requester (client) that automatically connects to the control device and transmits data when the diagnosis device is not provided Smart OBD scanning device. delete delete According to claim 1,
A smart OBD scan device in which a plurality of smart OBD scan devices perform autonomous diagnosis operations according to the control of the control device in a plurality of processes in which the diagnosis device is not provided. communicating, by the communication interface unit, with a diagnostic device and a control device for vehicle diagnosis for each process, respectively; and
When the diagnostic device is provided in a certain process in which the vehicle moves for the diagnosis, the controller connects to the diagnostic device in a first wireless connection mode and performs a diagnostic operation under the control of the diagnostic device, and controlling the communication interface unit in a second wireless connection mode to automatically connect to the control device to perform an autonomous diagnosis operation when the diagnostic device is not provided;
The performing step is,
Recognizing the process of the location where the vehicle moves based on the overall process sequence data stored in advance in relation to the overall process sequence, and changing the wireless connection method for communicating with the diagnostic device or the control device according to the recognition result,
The performing step is,
In the first wireless connection mode, the first communication unit of the communication interface unit is controlled to communicate with the diagnostic device, and in the second wireless connection mode, the second communication unit of the communication interface unit is controlled to communicate with the control device,
The first communication unit and the second communication unit, a method of driving a smart OBD scanning device for performing heterogeneous communication with different communication protocols. 7. The method of claim 6,
The performing step is,
Driving a smart OBD scanning device that operates as a receiver device that receives data when the diagnostic device is provided, and performs a diagnostic operation as a service requester that automatically connects to the control device and transmits data when the diagnostic device is not provided Way. delete delete 7. The method of claim 6,
A method of driving a smart OBD scan device in which a plurality of smart OBD scan devices perform autonomous diagnosis operations according to the control of the control device in a plurality of processes in which the diagnosis device is not provided.

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