KR101126640B1 - System and method for diagnosticating of most network using wireless network - Google Patents

Abstract

PURPOSE: A system for diagnosing a most network using a wireless network and a method thereof are provided to wirelessly diagnose communication states between devices and whether a MOST device has an error. CONSTITUTION: Wireless communication modules(190,200,210) wirelessly transceive a MOST(Media Oriented Systems Transport) diagnose result by a state diagnosis command. A MOST network state diagnosing module(100) deals with a device current state query and a response about a device current state by an external state diagnosis command. An external terminal(170) wirelessly receives the state diagnosis result from the MOST network state diagnosing module and the wireless communication module.

Description

System and method for diagnosing MOTS network using wireless network

The present invention relates to the diagnostic management of the MOST network, and specifically, by analyzing and diagnosing the data of the MOST network in the vehicle, it is possible to easily check the network status through an external terminal wirelessly without connecting a cable for errors or failures of the device. The present invention relates to a MOST network diagnosis system and method using a wireless network.

As the automobile paradigm is changed from a simple means of transportation to a living space in the future, the development of vehicle electronics technology is rapidly progressing to improve convenience, focusing on information and entertainment functions to satisfy consumer needs. .

As described above, automobiles are not only audio devices, but many multimedia devices such as car theater devices, telematics terminals, navigation devices, and digital multimedia broadcasting (DMB) terminals are entering the vehicle for the convenience of users.

In accordance with this trend, researches on in-vehicle networks (IVNs) have been actively conducted to connect ECUs and sensors inside the vehicle and provide various vehicle information.

With the development of automobiles, the vehicle network has various protocols depending on the required characteristics. Among them, MOST (Media Oriented Systems Transport) was developed for all kinds of automotive multimedia applications such as audio, video, navigation and communication systems.

MOST is an in-vehicle multimedia network. It is a data communication method that is suitable for multimedia data transmission by not only controlling all devices using individual cables but also by connecting them with one optical cable.

In other words, MOST is an optical-based network protocol aimed at high-performance multimedia data transmission. It is based on synchronized communication and is used in a communication system for transmitting and receiving data of audio, video and multimedia devices in a vehicle using optical cables as physical media. .

MOST has MOST25 supporting 25Mbps transmission bandwidth and MOST50 supporting 50Mbps developed in Japan. MOST150 standardization supporting 150Mbps has been recently developed.

Currently, in connection with the diagnostic system of the MOST device, a system for verifying the status of the MOST network by transmitting and receiving data in a wired manner rather than a wireless method is disclosed.

Mainly, it is a method of diagnosing abnormality of the MOST device and the network by connecting a connector to each device of the MOST network to check the status.

And since MOST network uses ring topology, data communication of whole network is impossible when one node or cable is disconnected. In case of abnormal ring break, each device is connected according to MOST network protocol. The node address is recorded by locating the ring brake through the node.

The fault diagnosis device implemented to display the recorded node position address on the fault diagnosis device exists in the MOST network so that the position of the fault within the MOST network can be accurately identified.

As described above, the conventional technology for diagnosing the MOST has to connect the external diagnostic equipment and the diagnosis apparatus in the vehicle one by one to manage the state of the MOST using a wire.

In addition, as a method for finding the position of the ring brake, each device diagnoses the ring brake and transmits the ring brake information to the in-vehicle diagnosis apparatus, but additional cabling is required, which leads to complicated wiring and weight of the vehicle. There is a problem that increases.

Alternatively, a 1: 1 connection between each node and external diagnostic equipment is required to check ring break information at each node. However, 1: 1 connection is required as many nodes.

This has the disadvantage that the ring brake cannot be located easily. In addition, there are inconveniences in not being able to check the status of the MOST network and the MOST equipment at the same time as maintenance because of the inconvenience and mobility problems caused by the wires when repairing the problem location.

The present invention is to solve the problems of the prior art MOST diagnostic technology, by analyzing and diagnosing the data of the MOST network in the vehicle, it is easy to wirelessly through the external terminal wirelessly without connecting the cable to the error or failure of the device The purpose of the present invention is to provide a system and method for diagnosing a MOST network using a wireless network by diagnosing and analyzing the MOST network and confirming network status.

The present invention provides a system and method for diagnosing MOST network using a wireless network to provide convenience to vehicle drivers and MOST engineers by wirelessly diagnosing a failure of MOST equipment or a communication state between devices for vehicles equipped with MOST. The purpose is to provide.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

The MOST network diagnostic system using a wireless network according to the present invention for achieving the above object is a device connected to the MOST ring of the MOST network configured in the vehicle; corresponding to each of the devices configured to the user's status diagnosis command Wireless communication modules for wirelessly transmitting and receiving the MOST diagnostic result according to; MOST network status diagnostic module for wirelessly receiving a status diagnostic command from the outside to perform the current status query and response processing regarding the current status; respective devices And an external terminal for wirelessly transmitting a user's status diagnosis command including a status diagnosis command and a MOST ring brake diagnosis command, and wirelessly receiving a status diagnosis result from the MOST network status diagnosis module and a wireless communication module. It is done.

Here, the status diagnosis command of the user may include a status diagnosis command and a MOST ring break diagnosis command for each device.

If the user's status diagnosis command is a status diagnosis command for each device, the MOST network status diagnosis module wirelessly transmits current status diagnosis results of each device to an external terminal.

When the user's state diagnosis command is a MOST ring break diagnosis command, each device performs a ring break diagnosis, and the ring break diagnosis result is wireless transmission of the wireless communication modules to an external terminal.

MOST network diagnostic method using a wireless network according to the present invention for achieving another object is configured to correspond to the respective devices and wireless communication modules for wireless transmission and reception of the MOST diagnostic result according to the user's status diagnostic command from the outside and In the status diagnosis of the MOST network configured in the vehicle using the MOST network diagnostic system including a MOST network status diagnosis module for wirelessly receiving a status diagnostic command and performing response processing on the current status query and current status of the devices, MOST Receiving a current status analysis command of the devices connected to the MOST ring of the network from an external terminal; MOST network status diagnostic module receiving the current status analysis command to query the devices the current status; The devices Status by response from Characterized in that it comprises a; the end result and transmitting to an external terminal through a wireless network.

The MOST network status diagnosis module outputs an error message to an external terminal through a wireless network when there is no response from the devices.

MOST network diagnostic method using a wireless network according to the present invention for achieving another object is configured to correspond to the respective devices from the wireless communication modules and the outside for wireless transmission and reception of the MOST diagnostic result according to the user's status diagnosis command In the state diagnosis of the MOST network configured in the vehicle using the MOST network diagnosis system including a MOST network state diagnosis module for wirelessly receiving the state diagnosis command of the device and performs response processing of the current state query and the current state of the devices, MOST network status diagnosis module and each device wirelessly receiving a ring brake diagnostic command from an external terminal; each device receiving the ring brake diagnostic command to check the ring brake status on the MOST network to diagnose; obtained through the diagnosis MOST Net Results And wirelessly transmitting to the external terminal through the walk state diagnosis module and the wireless communication module mounted to the device.

The external terminal receiving the result obtained through the diagnosis may determine whether a ring break occurs and output an address of a ring break generation position.

Such a MOST network diagnosis system and method using a wireless network according to the present invention has the following effects.

First, it can provide convenience to vehicle drivers and MOST engineers by wirelessly diagnosing the failure of MOST equipment or communication status between devices.

Second, the MOST network can be easily diagnosed and analyzed through an external terminal using a wireless network, so that fault diagnosis and fault handling can be efficiently performed.

Third, you can check the MOST status by connecting the cable and solve the trouble or trouble, and you can check the status of the MOST network anytime and anywhere from the outside.

Fourth, since it is easy to check through the terminal, it is possible to monitor the current state at the same time while repairing the vehicle confirmed the abnormal diagnosis.

1 is a block diagram of a MOST network diagnostic system using a wireless network according to the present invention
2 is a flowchart illustrating a device state diagnosis process of the MOST network state diagnosis module according to the present invention.
3 is a flowchart illustrating a ring brake state diagnosis process of the MOST network state diagnosis module according to the present invention.

Hereinafter, a preferred embodiment of a MOST network diagnosis system and method using a wireless network according to the present invention will be described in detail.

Features and advantages of the MOST network diagnostic system and method using a wireless network according to the present invention will become apparent from the detailed description of each embodiment below.

1 is a block diagram of a MOST network diagnostic system using a wireless network according to the present invention.

The present invention is a system for wirelessly diagnosing the state of the MOST network wirelessly through an external terminal, and analyzing and diagnosing data of the MOST network in a vehicle to easily connect the wireless network through an external terminal wirelessly without connecting a cable for errors or failures of the device. The status can be checked.

The MOST network diagnosis system using a wireless network according to the present invention diagnoses and analyzes the MOST network state in a device in a vehicle diagnosing the state of the MOST network, and transmits the status and diagnostic information to an external terminal through wireless communication, thereby providing a MOST engineer. It is a system that can conveniently engineer the MOST network while moving around the vehicle.

The external terminal can provide the MOST network status information to the engineer through an application such as a smartphone, and can also be checked through other dedicated terminals.

The configuration of the MOST network diagnostic system using a wireless network according to the present invention is as shown in FIG.

First, the devices 110, 120 and 130 connected to the MOST ring of the MOST network configured in the vehicle 150 and the respective devices 110, 120 and 130 are configured to correspond to the user. Wireless communication modules 190, 200 and 210 for wirelessly transmitting and receiving the MOST diagnosis result according to the condition diagnosis command, and wirelessly receiving the condition diagnosis command from the outside, The MOST network status diagnosis module 100 which performs a current status query and response processing regarding the current status, wirelessly transmits a status diagnosis command of a user, and transmits a status diagnosis result to the MOST network status diagnostic module 100 and a wireless communication module. It consists of an external terminal 170 for wireless reception from the (190) (200) (210).

Here, the status diagnosis command of the user includes a status diagnosis command and a MOST ring break diagnosis command for each of the multimedia devices 110, 120, and 130.

If the user's status diagnosis command is a status diagnosis command for each of the devices 110, 120, and 130, the MOST network status diagnosis module 100 is used for each device 110, 120, ( The current state diagnosis results of the 130 are wirelessly transmitted to the external terminal 170.

When the user's state diagnosis command is a MOST ring break diagnosis command, each device 110, 120, 130 performs a ring break diagnosis, and the ring break diagnosis result is the wireless communication module 190, 200. 210 transmits wirelessly to the external terminal 170.

The MOST network in the vehicle 150 may be a device such as an audio device or a video multimedia device on the MOST ring 140, and a wireless communication module 190, 200, 210 for each device. Is equipped.

The MOST network status diagnosis module 100 diagnoses the MOST 'network, and the diagnosis result is transmitted through wireless communication, and can be confirmed by the external terminal 170 or the smart phone 180.

If the ring brake 220 is generated, it is difficult to find the location of the ring brake through the wireless communication modules 190, 200, and 210 mounted on the devices 110, 120, and 130, respectively. The device transmits an event to each device 110, 120, and 130 to perform a ring brake diagnosis.

Each of the devices 110, 120, and 130 performs a ring brake diagnosis function to determine the exact position of the ring brake 220 to transmit ring brake information to an external terminal 170 or a smart phone 180.

The MOST network diagnosis method of the MOST network diagnosis system using the wireless network according to the present invention having such a configuration will be described in detail as follows.

2 is a flowchart illustrating a device state diagnosis process of the MOST network state diagnosis module according to the present invention, and FIG. 3 is a flowchart illustrating a ring break state diagnosis process of the MOST network state diagnosis module according to the present invention.

First, the control operation of the MOST network status diagnostic module for device status diagnosis is as follows.

As shown in FIG. 2, the engineer instructs the MOST network status diagnosis module 100 to analyze the current status of each device 110, 120, or 130 through an external terminal 170.

The MOST network status diagnosis module 100 receives a current status analysis command (S202), and the MOST network status diagnostic module 100 which receives the current status analysis command is present to each device 110, 120, 130. Inquire the status (S203).

The MOST network status diagnosis module 100 waiting for a response to the query (S204) checks whether the response arrives (S205), and when the response arrives (S207), the status diagnosis result for the response is transmitted through the wireless network. Transmit to external terminal 170. (S208)

When no response to the query arrives, an error message is output to the external terminal 170 through the wireless network (S206).

And the control operation of MOST network condition diagnosis module for ring brake diagnosis is as follows.

The engineer instructs the MOST network status diagnosis module 100 and the devices 110, 120, and 130 through the external terminal 170 to diagnose the ring brake using wireless communication (S301).

Subsequently, the ring break command is received by the MOST network state diagnosis module 100 and the respective devices 110, 120, and 130 (S302), and the ring on the MOST network is received by each device 110, 120, and 130. Diagnose by checking the brake state (S303).

The result obtained through the diagnosis is transferred to the external terminal 170 through the MOST network status diagnosis module 100 and the wireless communication modules 190, 200, and 210 mounted on the devices 110, 120, and 130, respectively. Each transmits (S304).

Subsequently, it is determined whether the ring brake has occurred (S305), and when the ring brake has occurred, the address of the position is output (S306), and the user confirms it (S307).

The MOST network diagnosis system and method using a wireless network according to the present invention analyzes and diagnoses the data of the MOST network in a vehicle, and easily connects an error condition or a cause of a device to a network wirelessly through an external terminal without connecting a cable. To check.

It will be understood that the present invention is implemented in a modified form without departing from the essential features of the present invention as described above.

Therefore, the described embodiments should be considered in descriptive sense only and not for purposes of limitation, and the scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope are included in the present invention. It should be interpreted.

100. MOST Network Status Diagnostic Module 110.120.130. device
140.MOST Ring 150.Vehicle
160. Wireless Communication 170. External Terminal
180. Smartphone 190.200.210. Wireless communication module
220. Ring Brake

Claims (8)

Devices connected to a MOST ring of a MOST network configured in a vehicle;
Wireless communication modules configured to correspond to the respective devices to wirelessly transmit and receive a MOST diagnosis result according to a user's status diagnosis command;
A MOST network state diagnosis module configured to wirelessly receive a state diagnosis command from the outside to perform a current state query and a response process regarding a current state of the devices;
An external terminal for wirelessly transmitting a status diagnosis command of a user including a status diagnosis command and a MOST ring brake diagnosis command for each device, and wirelessly receiving a status diagnosis result from the MOST network status diagnosis module and a wireless communication module; MOST network diagnostic system using a wireless network comprising a. delete The method of claim 1, wherein the status diagnosis command of the user is a status diagnosis command for each device.
The MOST network diagnosis system using the wireless network MOST network status diagnostic module, characterized in that for wireless transmission of the current status diagnosis results of each device to an external terminal. The method of claim 1, wherein when the user's state diagnosis command is a MOST ring brake diagnosis command,
MOST network diagnostic system using a wireless network, characterized in that each device performs a ring break diagnosis and the ring break diagnosis results are wirelessly transmitted to the external terminal by the wireless communication modules. Wireless communication modules for wirelessly transmitting and receiving the MOST diagnosis result according to the user's status diagnosis command and wirelessly receiving the status diagnosis command from the outside, and responding to the current status query and current status of the devices. In the state diagnosis of the MOST network configured in the vehicle using the MOST network diagnosis system including a MOST network state diagnosis module for performing the process,
Wirelessly receiving a current state analysis command of devices connected to a MOST ring of a MOST network from an external terminal;
Receiving, by the MOST network status diagnosis module, the current status analysis command from the devices, the current status;
MOST network diagnostic method using a wireless network comprising a; transmitting a result of the status diagnosis according to the response from the devices to an external terminal via a wireless network. The MOST network according to claim 5, wherein the MOST network status diagnosis module outputs an error message to an external terminal through a wireless network when there is no response from the devices. Diagnostic method. Wireless communication modules for wirelessly transmitting and receiving the MOST diagnosis result according to the user's state diagnosis command and wirelessly receiving the state diagnosis command from the outside, and responding to the current state query and the current state of the devices. In the state diagnosis of the MOST network configured in the vehicle using the MOST network diagnosis system including a MOST network state diagnosis module for performing the process,
MOST network status diagnostic module and each device wirelessly receiving a ring break diagnostic command from an external terminal;
Diagnosing each device receiving the ring break diagnosis command by checking a ring break state on a MOST network;
And wirelessly transmitting the result obtained through the diagnosis to the external terminal through the MOST network state diagnosis module and the wireless communication module installed in the device. The method of claim 7, wherein the external terminal receiving the result obtained through the diagnosis determines whether a ring break has occurred and outputs an address of a ring break occurrence position.

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