KR20010038471A - Apparatus and method for appling MRCU-LAN in sample test system - Google Patents

Abstract

PURPOSE: A testing apparatus and a method using an MRCU-LAN in a testing system of equipment are provided to be easily adapted to a system using a stream type socket interface and distribute a downloading load of a work station by facilitating repeatedly monitoring and downloading an operation state of a testing-target equipment in a development stage wanting an operation state testing by using an MRCU-LAN serial interface and an Ethernet interface. CONSTITUTION: A plurality of testing-target equipment(32) are respectively connected through an RS-232C interface to an MRCU-LAN(31). The MRCU-LAN(31) is connected through the RS-232C interface to the plurality of testing-target equipment(32) and connected to networks(21-29) constructed for testing the equipment through a TCP/IP interface. Accordingly, by controlling an input and an output of a test data for checking an operation state of the plurality of testing-target equipment(32) and an output data for the testing result, the operation is monitored and downloaded. A server work station(25) is connected through a socket, a TCP/IP interface, to the MRCU-LAN(31) and controls a connection request to the testing-target equipment(32) by a client on the networks(21-29). Accordingly, when the network and the testing-target equipment are successfully connected, the testing method using the MRCU-LAN is performed to test the equipment of a testing system. Thus, many users can simultaneously connect to the plurality of testing-target equipment(32), transmit a test data for testing, and monitor or download the operation of the testing-target equipment(32). At this time, a stream type socket interface of the MRCU-LAN(31) is used so that a connection state of a user for a specific testing-target equipment(32) is maintained without being cut off by a connection request by a different user.

Description

Apparatus and method for appling MRCU-LAN in sample test system}

The present invention relates to a test system of equipment, and in particular, inspection of a development stage requiring an operational state test using a serial interface and an Ethernet interface of a MRCU-LAN (Multi Remote Call Unit LAN). The present invention relates to a test apparatus and a method using an MRCU-LAN in a test system of a device that is suitable for repeatedly performing monitoring and downloading of an operation state of a target device.

In general, during the development of new devices, workstations will repeatedly monitor and download the behavior of the equipment under test.

Hereinafter, the configuration and operation of the test system for the equipment according to the prior art will be described.

First, FIG. 1 is a block diagram of a test apparatus using a serial interface in a test system of a conventional equipment.

As shown in the related art, a conventional test apparatus includes: a plurality of inspection target equipment (2) requiring operation test of the equipment in a development stage; It is connected to the plurality of inspection target equipment (2) through the RS-232C interface, and connected to the network (11 ~ 19) configured for the inspection of the equipment through the Ethernet interface to the test data for the equipment test and output data for the test result A workstation unit 1 which monitors and downloads operations by controlling input and output; It is composed of a server workstation (15) connected to the workstation unit 1 and the network to allow a plurality of users to access a plurality of inspection target equipment (2) on the network (11 ~ 19).

Referring to the operation of the conventional device according to such a configuration as follows.

First, the plurality of inspection target equipments 2, which require the test of the operation state of the equipment by being in the development stage, are connected to the workstation unit 1 via the RS-232C interface, respectively.

In addition, the workstation unit 1 outputs test data for performing the operation state monitoring of the device in the development stage to the inspection target device 2 by character unit. At this time, since each workstation 1 supports two RS-232C interface ports, it is possible to perform inspection operations on two inspection target equipments 2.

The server workstation 15 is then connected to the workstation unit 1 and the network via an Ethernet interface to control the connection request to the inspection target device 32 by the clients on the networks 11 to 19. . Therefore, when the network and the device under test are successfully connected, many users access the plurality of devices under test (2) and perform the test method using the RCU (Remote Call Unit) program to perform the operation test on the equipment in the development stage. Will be done.

Then, in the plurality of inspection target equipment 2, the inspection target equipment 2 operates according to the test data output from the workstation unit 1 and echoes the test data to the workstation unit 1 by echoing the test data. It is possible to monitor the abnormality of data input / output operations.

The operation state inspection method of the inspection target equipment (2) performed in such a conventional test apparatus will be described.

First, FIG. 2 is a flowchart of a test method using a serial interface in a test system of equipment according to the prior art.

As shown in the drawing, the conventional test method includes an initial step (ST11 to ST12) of checking a port connected to the test target device 2 by connecting to the weak station 1 to be inspected; An input step (ST13 to ST15) for starting a remote call unit (RCU) program after performing the initial steps (ST11 to ST12) and transmitting the test data to the test target device 2 when the user inputs test data for inspection; An echo step (ST16 to ST17) for echoing the test data transmitted in the input steps (ST13 to ST15) from the inspection target equipment (2) and outputting the test result to the output device of the user's workstation (21 or 22); If the test data input in the input step (ST13 ~ ST15) is left after performing the echo step (ST16 ~ ST17), the test continuation step (ST18 ~ ST19) to transmit the next test data to the test target device (2).

Referring to the flow of the test method according to the prior art configured as described above in detail as follows.

First, in the initial stage (ST11 ~ ST12), the user is logged in directly from the weak station (1) directly connected to the inspection target equipment (2) through RS-232C or remotely logged in to the workstation (1) via a network (ST11) ) Check the port connected to the inspection target device (2) (ST12).

In the input stages ST13 to ST15, the initial stages ST11 to ST12 are performed to operate the RCU program when the inspection target device 2 is determined (ST13). Subsequently, when the user inputs test data for inspection of the inspection target device 2 through the workstation where the user logs in (ST14), the test data is transmitted to the inspection target device 2 by character unit (Character) ( ST15).

The RCU program works similarly to the File Open operation using the 'tty' function, which allows access to each device on a UNIX system. Thus, when the test target device 2 is opened, data communication between the test target device 2 and the workstation 1 connected through the RS-232C interface is possible. That is, if the line speeds of the RS-232C interface of the inspection target device 2 and the interface by the 'tty' function of the workstation 1 are the same, the test data is transmitted.

In the echo stages ST16 to ST17, the test data transmitted in the input stages ST13 to ST15 is echoed from the inspection target device 2 (ST16) to output the user's workstation 11 or 12. (Console) will print the test result.

Subsequently, in the test continuation steps ST18 to ST19, when the echo steps ST16 to ST17 are performed, when the test data input by the user in the input steps ST13 to ST15 remains, the next character of the test data is selected. Transfer to the equipment under test (2) to continue the test.

In this way, it becomes possible to repeatedly perform the operation state inspection for the input and output operation of the inspection target equipment (2).

In addition to performing the general monitoring function as described above it is possible to perform the downloading function. That is, if the contents of a file composed of record (S-Record) format are sent to the test target device by record unit, the next record is repeatedly executed on the test target device and downloaded until all the file contents are consumed.

However, such a conventional test device, because the RS-232C interface only supports two ports, due to the lack of interface, some workstation users can use the UNIX 'tty' function to log in remotely and then test the target device. As a result, it was difficult to reconfigure the system for the equipment test, and the workstation in charge of the RS-232C interface directly to the target device had a heavy load in the direction of downloading data to be processed.

In addition, since two RS-232C interfaces are connected to one workstation, a separate expansion card that supports multiports is required to use two or more ports. Is limited to a maximum 38400bps, which limits the line speed compared to the local interface.

Therefore, the present invention has been proposed to solve the conventional problems as described above, and an object of the present invention requires an operational state test using a serial interface and an Ethernet interface of the MRCU-LAN. The present invention provides a test apparatus and method using an MRCU-LAN in a test system of a device so as to be suitable for repeatedly performing monitoring and downloading of an operation state of a test target device in a development stage.

1 is a block diagram of a test apparatus using a serial interface in a test system for equipment according to the prior art,

2 is a flowchart of a test method using a serial interface in a test system for equipment according to the prior art,

3 is a block diagram of a test apparatus using MRCU-LAN in a test system for equipment according to the present invention;

4 is a flowchart of a test method using an MRCU-LAN in a test system for equipment according to the present invention.

Explanation of symbols on the main parts of the drawings

21: local workstation 22: remote workstation

23 and 24: hubs 25 and 26: server workstations

27 and 28: Router 29: Internet

30: operation inspection unit 31: MRCU-LAN

32: multiple inspection target equipment

In order to achieve the above object, the configuration and operation of a test apparatus and a method using MRCU-LAN in a test system for equipment according to the present invention will be described based on an embodiment according to the technical idea.

First, Figure 3 is a block diagram of a test apparatus using the MRCU-LAN in the test system of the equipment according to the present invention.

As shown therein, a test apparatus using MRCU-LAN in a test system for equipment according to the present invention includes: a plurality of inspection target equipment 32 that requires operation test of the equipment in a development stage; It is connected to the plurality of inspection target equipment 32 through the RS-232C interface, and connected to the network (21 ~ 29) configured for the inspection of equipment through the TCP / IP interface to output the test data and test results for the equipment test An MRCU-LAN 31 which monitors and downloads an operation by controlling input / output of data; The server workstation 25 is connected to the MRCU-LAN 31 through a TCP / IP interface to allow multiple users to access a plurality of inspection target devices 32 on the networks 21 to 29 for inspection of the equipment. It is characterized by the technical configuration.

The operation of the test apparatus according to the present invention configured as described above will be described in detail as follows.

First, the plurality of inspection target devices 32, which are in the development stage and need to test the operation state of the equipment, are connected to the MRCU-LAN 31 via the RS-232C interface, respectively.

The MRCU-LAN 31 is connected to the plurality of inspection target devices 32 through the RS-232C interface, and connected to the networks 21 to 29 configured for the inspection of the equipment through the TCP / IP interface. Thus, by controlling the input and output of the test data and the output data for the test result for checking the operating state of the plurality of inspection target equipment 32 to perform the monitoring and downloading of the operation. At this time, since the serial interface of the MRCU-LAN 31 may support five ports, it is possible to simultaneously perform tests on five inspection target devices 32.

In addition, the server workstation 25 is connected to the MRCU-LAN 31 via a socket, which is a TCP / IP interface, to control the connection request to the inspection target device 32 by the clients on the networks 21 to 29. Done. Thus, when the connection between the network and the inspection target device is successfully performed, the device test is performed by performing a test method using the MRCU-LAN in the test system of the device according to the present invention.

Therefore, a plurality of users can simultaneously access the plurality of inspection target devices 32 and transmit test data for testing to monitor or download the operation of the inspection target device 32. At this time, the socket interface of the MRCU-LAN 31 is a stream type so that a user's connection state to a specific inspection target device 32 can be maintained without being disconnected by another user's connection request. Will be used.

In this way, the plurality of inspection target equipment 32 receives the test data output from the MRCU-LAN 31 and echoes them to the workstation 21 or 22 where the user logs in to output the inspection data. It is possible to monitor and download abnormal data input / output operations.

Referring to the configuration and operation of the test method using the MRCU-LAN in the test system of the equipment according to the present invention that can be applied to the above devices are as follows.

First, FIG. 4 is a flowchart of a test method using an MRCU-LAN in a test system for equipment according to the present invention.

As shown in the drawing, the test method according to the present invention is an initial step of allocating an IP address and assigning a port number to the MRCU-LAN 31 to be tested for the plurality of inspection target devices 32 (ST21 to ST22). )Wow; Connect to a specific test target device 32 designated in the initial step (ST21 ~ ST22), start the MRCU program and then the user inputs the data for the test for the test target device 32 (ST23 ~ ST25); If the test data is transmitted to the connected test target device 32 in a certain transmission unit in the connection step (ST23 ~ ST25), the test step of echoing the test data from the test target device 32 to the user's output device (ST26 ~ ST28) )Wow; If the test data input in the connection step (ST23 ~ ST25) remains, it is characterized by the technical configuration to perform the test continue step (ST29 ~ ST30) to transfer the next test data and return to the test steps (ST26 ~ ST28) .

Referring to the flow of the test method using the MRCU-LAN in the test system of the equipment according to the present invention configured as described above are as follows.

First, in the initial stage (ST21 ~ ST22), assign the IP address so that the MRCU-LAN 31 can be recognized in the network (ST21), the MRCU-LAN 32 can recognize the inspection target equipment (32) A port number is assigned to each serial port that is connected to the plurality of inspection target devices 32 so that the port number is set (ST22). At this time, since the MRCU-LAN 31 supports five serial ports at the same time, the five inspection target devices 32 can be inspected.

And in the connection step (ST23 ~ ST25), after confirming the inspection target equipment connected to the specific port of the MRCU-LAN (31) designated as the IP address in the initial step (ST21 ~ ST22) (ST23), and operates the MRCU program ( ST24) The user enters test data for the inspection of the inspection target device through the workstation where the user logs in (ST25).

Subsequently, in the test steps ST26 to ST28, when the test data is transmitted to the test target device 32 by the character unit of the test data to the test target device 32 connected in the connection steps ST23 to ST25 (ST26). In addition, the test target device 32 echoes the test data (STO) and outputs the test result to the output device (Console) of the workstation 21 or 22 where the user logs in (ST28).

Then, in the test continuation steps ST29 to ST30, when the test steps ST26 to ST28 are performed, when the test data input in the connection steps ST23 to ST25 remains (ST29), the next character of the test data ( Character) is transmitted to the inspection target device 32 and restored to the test steps ST26 to ST28 to continue the test (ST30).

In this way, it becomes possible to repeatedly perform the operation state inspection for the input and output operation of the inspection target equipment (32).

And the test method using the MRCU-LAN in the test system of the equipment according to the present invention can add the following functions.

First of all, it is scheduled to be used when connecting to the MRCU-LAN 31 in order to solve the case where the connection to the test target equipment 32 is maintained and the connection state is maintained without being used for a long time so that the connection of other users is disturbed. You can specify the time. If you do not specify the scheduled usage time, it can be set as the default value. This function is to automatically disconnect the MRCU-LAN 31 when there is no test data transmitted for a specified time.

And because the socket (Socket) interface is used to communicate with the MRCU-LAN (31) it is possible to obtain information about the state of the port currently in use and the state of the other port.

In this way, the test apparatus and method according to the present invention can be easily applied to a system using a stream type socket interface, and distributes the downloading load of the workstation used by directly connecting to the inspection target equipment.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the test method using the MRCU-LAN in the test system of the equipment according to the present invention, can be easily applied to the system using the stream type socket interface, the workstation of the workstation used directly connected to the inspection target equipment This has the effect of distributing the downloading load.

In addition, the interface between the MRCU-LAN and server workstations uses stream-type socket interfaces without using the UNIX 'tty' function, which can increase the line speed up to 115200bps.

Claims (2)

In the test system of the equipment, A plurality of inspection target equipment requiring operation test of the equipment in the development stage; The plurality of inspection target devices are connected through an RS-232C interface, and are connected to a network configured for the inspection of a device through a TCP / IP interface to control input / output of test data for testing a device and output data for a test result. MRCU-LAN for performing monitoring and downloading to the; Test device using the MRCU-LAN in the test system of the equipment, characterized in that the server workstation is connected to the MRCU-LAN is configured to allow a plurality of users to access the inspection target equipment on the network for the equipment inspection. An initial step of allocating an IP address and assigning a port number to the MRCU-LAN to be tested for the plurality of target devices; A connection step of connecting to an inspection target device specified in the initial step, executing a program to control a test, and then inputting data for a test on the inspection target device; A test step of transmitting the test data to the test target device connected in the connection step in a predetermined transmission unit and echoing the test data from the test target device to the output device of the user; After performing the test step, if the test data input in the connection step remains, the test system for transmitting the next test data and performing the test continuation step of returning to the test step using MRCU-LAN Testing method.