KR20140147165A - System and method for evaluating wireless communication for vehicle - Google Patents

System and method for evaluating wireless communication for vehicle Download PDF

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Publication number
KR20140147165A
KR20140147165A KR1020130069042A KR20130069042A KR20140147165A KR 20140147165 A KR20140147165 A KR 20140147165A KR 1020130069042 A KR1020130069042 A KR 1020130069042A KR 20130069042 A KR20130069042 A KR 20130069042A KR 20140147165 A KR20140147165 A KR 20140147165A
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KR
South Korea
Prior art keywords
wireless communication
response
message
time
hopping
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Application number
KR1020130069042A
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Korean (ko)
Inventor
김현욱
김홍열
박재홍
이정용
Original Assignee
현대자동차주식회사
주식회사 와이즈오토모티브
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Priority to KR1020130069042A priority Critical patent/KR20140147165A/en
Publication of KR20140147165A publication Critical patent/KR20140147165A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/04—Processing captured monitoring data, e.g. for logfile generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • H04L43/0841—Round trip packet loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/0864—Round trip delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Data Mining & Analysis (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A plurality of wireless communication modules mounted on a vehicle; And a step of transmitting an initialization command to a plurality of wireless communication modules, recording an initialization time, transmitting a message to a plurality of wireless communication modules, and storing a response time, in a serial manner in a wired communication with a user terminal outside the vehicle And a master control module for hopping a frequency channel and transmitting a message to a plurality of wireless communication modules and storing a hopping time required for a response when the response failure rate exceeds a predetermined failure rate, Is introduced.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and a method for evaluating a wireless communication of a vehicle,

The present invention relates to a user interface and a wireless communication evaluation system for a vehicle related to a network terminal device for improving a problem caused by a manual operation of a developer or an operator in a message transmission / reception verification of a network applied to a real- And an evaluation method thereof.

When configuring a system using a wired or wireless network, a Packet Analyzer (Protocol Analyzer) is used to verify the suitability of sending and receiving messages in the network.

In particular, when the network is applied to a real-time system, since the time characteristic is an important verification factor, many Protocol Analyzers display the idle time between messages, thereby providing a means for the developer or operator to grasp such time characteristics. However, if there is a large number of message traffic in a short period of time, the developer or the operator must check the log data individually to determine suitability, so that the verification time increases and the accuracy can not be guaranteed due to manual operation.

It is an object of the present invention to provide a user interface and a function of a network terminal device in order to improve a problem caused by a manual operation of a developer or an operator in a message transmission / reception verification of a network applied to a real-time system in which time characterization is essential.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2012-0116531A

The present invention relates to a user interface and a wireless communication evaluation system for a vehicle related to a network terminal device for improving a problem caused by a manual operation of a developer or an operator in a message transmission / reception verification of a network applied to a real- And an evaluation method thereof.

According to an aspect of the present invention, there is provided a wireless communication evaluation system for a vehicle, comprising: a plurality of wireless communication modules mounted on a vehicle; And a step of transmitting an initialization command to a plurality of wireless communication modules, recording an initialization time, transmitting a message to a plurality of wireless communication modules, and storing a response time, in a serial manner in a wired communication with a user terminal outside the vehicle And a master control module for hopping a frequency channel when a response failure rate exceeds a predetermined failure rate, transmitting a message to a plurality of wireless communication modules, and storing a hopping time required for a response.

The master control module can perform communication with a plurality of wireless communication modules when an evaluation start command is transmitted from a user terminal.

The master control module transmits a message to the plurality of wireless communication modules by the number of times input from the user terminal. When the message is transmitted by the number of times inputted, the master control module stores the initialization time, response time, Lt; / RTI >

The master control module transmits a message to a plurality of wireless communication modules by the number of times input from the user terminal, and the count of the message transmission may include a message transmission according to the hopping.

The master control module transmits a message to a plurality of wireless communication modules, stores a response time from each wireless communication module, and checks whether or not a response is received after a predetermined period of time. If the response is not received from one or more wireless communication modules, can do.

The master control module hopping frequency channels, sending messages to a plurality of wireless communication modules, and storing hopping times for each wireless communication module.

A wireless communication evaluation method for a vehicle using the wireless communication evaluation system of the vehicle includes an initialization step of transmitting an initialization command to each wireless communication module in the master control module and recording an initialization time; A response checking step of repeatedly transmitting a message to each wireless communication module in the master control module and storing the response time; And a hopping check step of hopping a frequency channel when a response failure rate exceeds a predetermined failure rate in the master control module, transmitting a message to each wireless communication module, and storing a hopping time until a response is received.

According to the radio communication evaluation system and the evaluation method of the vehicle having the above-described structure, it is possible to effectively verify the vehicle radio communication, and in particular, the validity of the response in real time and the safety concerning the hopping can be transmitted as consistent data, There are advantages to be able to.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a wireless communication evaluation system for a vehicle according to an embodiment of the present invention. Fig.
2 is a diagram illustrating an interface of a wireless communication evaluation system of a vehicle according to an embodiment of the present invention.
3 is a flowchart of a wireless communication evaluation method of a vehicle according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle wireless communication evaluation system and an evaluation method according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating a wireless communication evaluation system for a vehicle according to an embodiment of the present invention. FIG. 2 is a diagram showing an interface of a wireless communication evaluation system for a vehicle according to an embodiment of the present invention. Fig. 3 is a flowchart of a wireless communication evaluation method of a vehicle according to an embodiment of the present invention. Fig.

A wireless communication evaluation system for a vehicle according to the present invention comprises: a plurality of wireless communication modules (100) mounted on a vehicle; And transmits the initialization command to the plurality of wireless communication modules 100, records the initialization time, and transmits a message to the plurality of wireless communication modules 100 A master control module 300 for storing a hopping time for hopping a frequency channel and transmitting a message to a plurality of wireless communication modules 100 when a response failure rate exceeds a predetermined failure rate, ).

The present invention aims at improving the problems of existing technologies, and specifically includes functions of a packet analyzer, a configuration of a user interface, and functions of a network terminal device. The components of this invention are intended to automate the evaluation of real-time properties.

The present invention has the following configuration. First, the user interface has setting information input function for progressing automation of real-time evaluation. The evaluation setting information includes the number of statistical bases and the evaluation criteria.

Second, the evaluation setting information of the user interface is transmitted to a device acting as a management device among the terminal devices of the network through a separate serial communication means, and the terminal performs the measurement and collection of necessary information according to the reference number of statistics. This is because the role of the terminal is generally inadequate for real-time characteristics in which a computer-based user interface program actually performs collection and measurement in several milliseconds.

Third, measured and collected data is transferred to the user interface in the form of statistical data. The user interface program displays the statistical data and the evaluation result according to the transmitted statistical data and the evaluation criteria inputted from the operator or the developer.

2 is a screen capturing a computer-based user interface program of an automated evaluation system. The interface of the user terminal provides information to the operator or the developer through the presentation of specific evaluation items matching the characteristics of the network to be evaluated. This information includes the usual evaluation criteria by default. The operator or the developer sets the reference frequency of the statistics according to the application characteristics based on the given information, and inputs the evaluation criterion if necessary. The number of statistics reference and the evaluation criterion inputted are transmitted to a device (for example, a master device) that serves as a management terminal device among the terminals of the network through the serial communication method, and the device acting as a management device measures and collects data for a given number of statistics And transmits the statistical result of the data to the computer-based user interface program again. The transmitted statistical results are evaluated by the user interface program according to the evaluation criteria and are provided to the operator or the developer together with the statistical data.

For this series of processes, the vehicle is provided with a plurality of wireless communication modules. Each of the wireless communication modules may be provided integrally with each of the lower controllers 120. 1 shows an example in which ZigBee, which is a typical wireless communication network, is applied to a vehicle, which is a real-time system, as an embodiment. Zigbee has five terminals (IPM, FL Door, FR Door, RL Door, RR Door). The IPM is a main controller for managing the entire door system, and is responsible for unlocking doors in case of emergency. The IPM of the terminal device manages the wireless network of the entire door system and is connected to the interface program of the computer-based user terminal through RS-232, which is one of the serial communication methods.

FIG. 2 is an evaluation item for the real-time performance displayed by the user interface program. FIG. 2 is an evaluation item for the real-time performance displayed by the user interface program. FIG. 2 is a graph showing the performance of the terminal when the channel change is required due to an increase in interference, In hopping time, and an initialization time after power-on.

Each evaluation item has a control for specifying the number of statistics, and has a measurement button, which is a button for displaying the evaluation result together with the maximum and average display functions, which are statistical data.

The IPM of the embodiment, that is, the master controller is connected in series with a user terminal outside the vehicle by wire communication, transmits an initialization command to a plurality of wireless communication modules, records an initialization time, transmits a message to a plurality of wireless communication modules, If the response failure rate exceeds a predetermined failure rate, hopping frequency channels, transmitting a message to a plurality of wireless communication modules, and storing a hopping time for a response are repeated.

First, the master control module can perform communication with a plurality of wireless communication modules when an evaluation start command is transmitted from a user terminal connected in series.

More specifically, an initialization command is transmitted to a plurality of wireless communication modules and the initialization time for each wireless communication module is recorded.

Then, the master control module transmits a message to the plurality of wireless communication modules by the number of times input from the user terminal. When the message is transmitted by the number of times inputted, the master control module outputs the initialization time, response time, The number of failures, and the hopping time.

The master control module transmits a message to the plurality of wireless communication modules by the number of times input from the user terminal, and stores a response time corresponding to each message for each wireless communication module.

The master control module transmits a message to the plurality of wireless communication modules by the number of times inputted from the user terminal. If the response failure rate exceeds the predetermined failure rate, the master control module hopes the frequency channel and transmits a message to the plurality of wireless communication modules It stores the hopping time that takes up to the response, and the count of the message transmission can also include the message transmission according to the hopping.

In the case of the response failure rate, it may be defined as a ratio of the number of failed messages to the total number of transmitted messages. If the failure rate exceeds a predetermined failure rate, hopping of the frequency channel is performed to change the frequency to another frequency, .

In addition, the master control module transmits a message to a plurality of wireless communication modules, stores a response time from each wireless communication module, checks whether or not a response is received after a predetermined time, and if a response is not received from one or more wireless communication modules, .

The master control module hopping frequency channels, transmitting messages to a plurality of wireless communication modules, and storing hopping times for each wireless communication module.

FIG. 3 is a flowchart of a method for evaluating a radio communication of a vehicle according to an embodiment of the present invention. In the radio communication evaluation method for a vehicle using the radio communication evaluation system of such a vehicle, (S100, S103) for recording the initialization time; A response checking step (S202, S206) in which the master control module repeatedly transmits a message to each wireless communication module and stores a response time; And a hopping check step (S301, S306) of hopping a frequency channel when a response failure rate exceeds a predetermined failure rate in the master control module, sending a message to each wireless communication module, and storing a hopping time required for a response.

First, when evaluation is performed from the user terminal, the master control module transmits an initialization command to each wireless communication module (S100). The initialization time is reset (S101), and the initialization time taken until communication is resumed is measured and stored (S102, S103).

Then, a message transmission count is reset (S200), a message is transmitted to each wireless communication module (S202), a count is added every time a response is received (S204), and a response time is stored for each wireless communication module (S206).

If a response is not received from all the wireless communication modules within a predetermined time, the communication failure is stored (S203, S204, S300). If the communication failure rate is accumulated and the communication failure rate exceeds a predetermined size, it is determined that the hopping condition is satisfied (S301). Hopping is performed (S302), the frequency channel is changed (S303), and the hopping time is reset (S304). If all the responses are received according to the hopping (S305), the hopping time is stored for each wireless communication module (S306). If hopping is not performed, a message is transmitted again to wait for a response (S202). If the message has been transmitted a predetermined number of times, the process is terminated (S201).

Finally, the master control module transmits information such as the initialization time, the response time, the number of communication failure times, and the hopping time stored in the user terminal (S400), and outputs the user terminal as shown in FIG.

According to the radio communication evaluation system and the evaluation method of the vehicle having the above-described structure, it is possible to effectively verify the vehicle radio communication, and in particular, the validity of the response in real time and the safety concerning the hopping can be transmitted as consistent data, There are advantages to be able to.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: wireless communication module 300: master controller
400: User terminal

Claims (7)

A plurality of wireless communication modules mounted on a vehicle; And
The method of claim 1, further comprising the steps of: transmitting an initialization command to a plurality of wireless communication modules, recording an initialization time, transmitting a message to a plurality of wireless communication modules, and storing a response time, And a master control module for hopping a frequency channel, sending a message to a plurality of wireless communication modules, and storing a hopping time required for a response when the response failure rate exceeds a predetermined failure rate. The method according to claim 1,
Wherein the master control module performs communication with a plurality of wireless communication modules when an evaluation start command is transmitted from a user terminal. The method according to claim 1,
The master control module transmits a message to the plurality of wireless communication modules by the number of times input from the user terminal. When the message is transmitted by the number of times inputted, the master control module stores the initialization time, response time, To the wireless communication system. The method according to claim 1,
Wherein the master control module transmits a message to the plurality of wireless communication modules as many times as inputted from the user terminal, and the count of the message transmission also includes the message transmission according to the hopping. The method according to claim 1,
The master control module transmits a message to a plurality of wireless communication modules, stores a response time from each wireless communication module, and checks whether or not a response is received after a predetermined period of time. If the response is not received from one or more wireless communication modules, And the wireless communication evaluation system of the vehicle. The method according to claim 1,
Wherein the master control module hopping frequency channels, transmitting messages to a plurality of wireless communication modules, and storing a hopping time for each wireless communication module. A wireless communication evaluation method of a vehicle using the wireless communication evaluation system of a vehicle according to claim 1,
An initialization step of transmitting an initialization command to each wireless communication module in the master control module and recording an initialization time;
A response checking step of repeatedly transmitting a message to each wireless communication module in the master control module and storing the response time; And
And a hopping check step of hopping a frequency channel when a response failure rate exceeds a predetermined failure rate in the master control module, sending a message to each wireless communication module, and storing a hopping time required for a response.
KR1020130069042A 2013-06-17 2013-06-17 System and method for evaluating wireless communication for vehicle KR20140147165A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115378830A (en) * 2022-08-19 2022-11-22 百倍云(浙江)物联科技有限公司 Stability monitoring method for ecological environment monitoring system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115378830A (en) * 2022-08-19 2022-11-22 百倍云(浙江)物联科技有限公司 Stability monitoring method for ecological environment monitoring system
CN115378830B (en) * 2022-08-19 2024-03-26 百倍云(浙江)物联科技有限公司 Ecological environment monitoring system stability monitoring method

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