KR20080017689A - Can monitoring system and method thereof - Google Patents

Abstract

A system and a method for monitoring CAN(Controller Area Network) are provided to detect/record information about a signal value and an electric field strength at a time for malfunction of a sample automatically during an EMS(ElectroMagnetic Susceptibility) test by integrating a monitoring function of a CAN analyzer, EMS system software, and a video card to one program, and setting a normal operation range to each CAN analyzer signal. A monitoring PC(100) and an EMS system PC(200) are connected with an RS(Recommended Standard)-232 serial cable. The monitoring PC includes a CAN monitoring processor monitoring a video signal, a CAN analyzer(110) observing, analyzing, and adding data traffic of a bus line for a CAN monitoring system(120), and a video board(130) displaying the video signal received from a camera to a monitor. The EMS system PC includes an EMS processor(210) generating a desired electric field strength by controlling equipments used for an EMS test through the EMS test software.

Description

CAN Monitoring System And Method Thereof

1 is a block diagram showing a conventional monitoring system.

Figure 2 is a block diagram showing a CAN monitoring system according to the present invention.

Figure 3 is a block diagram showing a CAN monitoring method according to the present invention.

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

100: monitoring PC

110: CAN analyzer

120: CAN monitoring processing unit

130: video output

200: EMS system PC

210: EMS processing unit

300: RS-232C communication cable

The present invention relates to a monitoring system and a method thereof, and more particularly, a CAN monitoring system for integrating and observing monitoring functions of a controller area network (CAN) analyzer, an EMS system software, and a video card by integrating each other in an electromagnetic immunity test. And to a method thereof.

1 is a block diagram showing a conventional monitoring system.

As shown in the drawing, the conventional monitoring system includes a monitoring PC 10 including a CAN analyzer 11, a monitor 20 displaying a camera screen, and an EMS system PC 30 including EMS software. It consists of. In addition, they are operated independently without interlocking between the systems.

As described above, in the conventional monitoring system, the tester must directly observe the occurrence of a malfunction due to the failure to interlock independently of each other, and manually record the information on the signal value and the electric field strength when the malfunction occurs. Problems could be pointed out in terms of reliability and objectivity of malfunction determination.

Accordingly, the present invention has been made to solve the above-mentioned problems, by integrating the monitoring function of the CAN analyzer, EMS system software and video card into one program, and by setting the normal operating range to each CAN analyzer signal It is an object of the present invention to provide a CAN monitoring system and method capable of automatically detecting and recording signal values and field strength information at the time of malfunction of a sample during electromagnetic immunity testing.

In the CAN monitoring system according to the present invention for achieving the above object, in connection with the CAN analyzer, the EMS system software and the monitoring function of the video card in the system to automatically determine and record the malfunction in the event of a malfunction of the test sample, Configured by connecting a monitoring PC and the EMS system PC with an RS-232 serial cable, the monitoring PC, CAN monitoring processing unit for monitoring the information of the CAN analyzer, video, EMS software; A CAN analyzer for observing, analyzing, and adding data traffic on a bus line for a CAN BUS system; A video output unit for displaying an image signal received from a camera on a computer monitor; The EMS system PC is characterized in that it comprises an EMS processing unit for controlling the equipment to be used in the electromagnetic wave resistance test through the EMS test software to generate a desired electric field.

In addition, the CAN monitoring method according to the present invention, in connection with the CAN analyzer, the EMS system software and the monitoring function of the video card in the method of automatically determining, recording and storing the malfunction when the malfunction of the test sample occurs, and displays the video signal Storing; Displaying information related to the electric field strength of the EMS system; Selecting a message and a signal of the CAN analyzer and setting an error range for each signal; And displaying the value of the set CAN analyzer signal and recording information of the signal outside the error range and the electric field strength at that time.

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

2 is a block diagram showing a CAN monitoring system according to the present invention.

As shown, the present invention, monitoring PC 100, CAN analyzer 110, CAN monitoring processing unit 120, video output unit 130, EMS system PC 200, EMS processing unit 210, RS It consists of -232C communication cable (300).

The monitoring PC 100 is provided with a CAN analyzer 110, a CAN monitoring processing unit 120, a video output unit 130, the EMS system PC 200 is configured with an EMS processing unit 210. The present invention consists of two computers so that the connection between the two computers are connected by the RS-232C communication cable (300).

3 is a block diagram illustrating a CAN monitoring method according to the present invention.

As shown, the present invention is a system for automatically determining, recording, and storing malfunctions when a malfunction occurs in a test sample by interlocking CAN analyzers, EMS system software, and a monitoring function of a video card, displaying and storing a video signal; Displaying information related to the electric field strength of the EMS system; Selecting a message and a signal of the CAN analyzer and setting an error range for each signal; Displaying the value of the set CAN analyzer signal and recording the information of the signal out of the error range and the electric field strength at that time together.

Referring to the operation of the present invention configured as described in more detail as follows.

The CAN monitoring system according to the present invention is configured by connecting the monitoring PC 100 and the EMS system PC 200 with an RS-232 serial cable 300, as shown in FIG. The monitoring PC 100 includes a CAN monitoring processor 120, as well as a CAN analyzer 110 and a video output unit 130, and an EMS system PC 210 that processes EMS test software in the EMS system PC 200. Is installed.

CAN analyzer 110 is a universal development tool for CAN BUS system is used to observe, analyze and add data traffic on the bus line (Bus Line).

The EMS processing unit 210 controls the equipment used in the electromagnetic resistance test through the EMS test software to adjust the desired electric field.

The video output unit 130 is a device for displaying an image signal received from the camera on a computer monitor.

In the CAN monitoring method according to the present invention, as shown in FIG. 2, first, when the present invention is executed, information is displayed from the EMS system software (S101).

Then select the CAN signal to monitor and set the normal operating range for each signal.

When the user presses the start button, it receives and displays the value of the signal from the CAN analyzer 110 and compares the value with the normal operating range setting value that is set to determine that the value is out of the normal operating range and determines that the sample is malfunctioning. The signal value and information about the electric field strength can be recorded together in the function list, and the data recorded in the function list (Malfunction Lis) t can be saved in the form of an Excel file according to the user's needs (S102 ~ 107). ).

If the record button is pressed, each CAN signal value is recorded in the buffer according to the information related to the electric field of the EMS system, and when the stop button is pressed, it can be saved in the form of an Excel file according to the user's intention to save (S108 ~ S110). .

In addition, the video screen / window screen can be captured and saved in the form of a JPG file by using the Video Capture / Window Capture button (S111 ~ S112).

Therefore, the present invention is a system that monitors the integration of CAN analyzer, EMS system software, and video card monitoring function by integrating them into one program during the electromagnetic wave immunity test. It is possible to automatically determine the malfunction of EUT by setting the normal operating range for the desired signal without looking, and automatically record the signal value and the electric field strength at the time of malfunction. In addition, video screen or program window screen can be saved at the desired time point to improve objectivity in determining malfunction, reliability and accuracy of test, and also save the record of malfunction in Excel file format. It can be used to prepare a report after the test, thereby improving the efficiency of the tester.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

As described above, according to the CAN monitoring system and the method thereof, the CAN analyzer, the EMS system software, and the monitoring function of the video card are interlocked with each other, a desired signal is selected, and a normal operating range is set. Automatically detect and store information about signal values and field strength to increase objectivity in determining malfunction, improve test reliability and accuracy, and save recorded results in Excel files. There is an effect that can play a big role in improving convenience.

Claims (2)

In the system that the CAN analyzer, the EMS system software and the monitoring function of the video card are interlocked to automatically determine and record the malfunction in case of malfunction of the test sample. Configure the monitoring PC by connecting the EMS system PC with an RS-232 serial cable. The monitoring PC, CAN monitoring processing unit for monitoring the video signal; A CAN analyzer for observing, analyzing, and adding data traffic on a bus line for a CAN BUS system; A video output unit for displaying an image signal received from a camera on a computer monitor; The EMS system PC, CAN monitoring system comprising an EMS processor for controlling the equipment used in the electromagnetic immunity test through the EMS test software to adjust the desired electric field. In the method of interlocking CAN analyzer, EMS system software and monitoring function of video card, in case of malfunction of test sample, it automatically determines and records and saves the malfunction. Displaying and storing a video signal; Displaying information related to the electric field strength of the EMS system; Selecting a message and a signal of the CAN analyzer and setting an error range for each signal; And displaying the value of the set CAN analyzer signal and recording the information of the signal outside the error range and the electric field strength at that time.

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