KR920010166B1 - Remote diagnosis method - Google Patents

Abstract

The remote diagnostic method is to diagnose personal computer utilizing public network. The method comprises an adle state step (IS) for counting the number of rings and for setting a state by 1, a receive command state step (RCS) for sending types of test from a host computer to a personal computer and for setting a state by 2, a send frame state step (SFS) for sending data and for sending reset signal after 50 ms using a send frame timer set in the state 1, for sending check-sum tone when data transmission is completed and for setting a state by 3, and a receive result state step (RRS) for sending OK, resend or abort signal to a personal computer by checking check-sum signals and for terminating a process by setting a state by 0.

Description

Remote diagnostics

1 is an overall configuration diagram of hardware of the present invention for a communication function.

2 is a flow chart of the present invention composed of four states for remote diagnosis.

* Explanation of symbols for the main parts of the drawings

HS: Host System PC-1 ~ PC-n: Personal Computer

IS: Idle State CUT: Counter

RCS: Receive Command State

SFS: Send Farme State

RRS: Receive Result State

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote diagnostic method, and more particularly, to a remote diagnostic method that enables a personal computer to automatically diagnose a failure of a personal computer at a remote distance through a public telephone line.

Conventionally, since it is impossible to diagnose the failure of a personal computer at a remote distance, there is a problem that A / S is impossible for a user who purchases a personal computer and thus the reliability is lowered.

In order to solve the above problems, an object of the present invention is to provide a remote diagnosis method that can automatically diagnose the presence or absence of a failure of a personal computer at a remote distance.

That is, the present invention is to enable the automatic diagnosis of the failure of the personal computer in the remote distance by the hardware and the flow chart composed of four states to automatically diagnose the failure of the personal computer at the remote distance .

When described in detail according to the accompanying drawings, the present invention for achieving the above object is as follows.

As is well known, the board configuration diagram of the hardware for the communication function is shown in FIG. 1. As shown in FIG. 1, a single telephone is connected to the host system HS, and a personal computer (PC) is connected between the host system HS and the telephone through a telephone exchange network. Connect a plurality of personal computers (PC-1 to PC-n) to diagnose the failure of a PC at a remote distance, and connect a telephone to the personal computers (PC-1 to PC-n). It is a board.

In addition, a flow chart composed of four states for remote diagnosis is shown in FIG. 2 through a counter step (CUT) that counts the number of times the ring rang after the routine is executed. The idle command step IS that sets the value to 1 and the type of test to be sent from the host system HS to the personal computer PC. Sends data once using the Send Frame Timer and sends the reset signal after about 50ms and then checks the last transmitted result. A send drain stage that sends an additional (check-sum) tone to check that the host system (HS) has received the results correctly, then sets the state to 3. The host system (HS) sends an OK signal if the checksum of the various tones sent by step (SFS) and state 2 is correct and sends a OK or an abort signal to the host system (HS), and then the BIOS (Baic). When the OK signal is received from the Input Output System), the flow chart is configured as a receive result state (RRS) which terminates all processes and sets the state to zero.

If described in detail according to the first and second effect of the present invention configured as described above are as follows.

First, when the telephone rings from the telephone while the personal computer (PC) is powered on, the ring interrupt is hardware-bound and the routine is executed in the idle state IS.

In this state, the counter (CUT) counts the number of times the ring has been ringing. If the ring rings more than 10 times consecutively (a person does not pick up the handset connected to the PC), the personal computer (PC) answers the call (hooks off). (HOOK OFF)) The state is set to 1 to prepare for command transport from the host system (HS).

At this time, if no signal is received from the host system (HS) or the telephone connection is disconnected, the system waits while answering the call. Therefore, the user cannot receive a command after a certain time by using the clock in the personal computer (PC). In this case, after processing as a time out error, change the timer interrupt in software (S / W) to check the time.

If the switch is pressed in state 0, if the interrupt is hardware, it will immediately answer the call and proceed with the same process.

Next, the host system HS sends a command to the personal computer PC, and the receive comment state RCS tells the user what type of test the personal computer PC receives the command will perform.

If the personal computer PC receives a normal command, the personal computer PC starts the Send Frame Timer to transmit the data and releases the previously set timeout timer. This changes the function of the timer interrupt to send data tones at regular intervals.

In this way, the receive command state (RCS) sets the state to 2 and is ready to send state 2 to the sandframe state (SFS). The send frame state (SFS) then sends a reset signal every 50 ms using the send frame timer set in state 1 to maintain accurate timing.

That is, the remote diagnostic board sends one tone to the output port and resets it after a certain time. In this way, the timer sends data to the output port once and then sends the reset signal after about 50ms. After sending data at this interval, at the end, an additional check sum tone is sent to check the transmitted result, and the host system (HS) checks if the result is received correctly. As with the change to 1, start the timeout timer to set the state to 3.

In this state, if the checksums of the various tones sent from state 2 are correct, the host system (HS) sends a OK signal to the receive result state (RRS), or a resend signal or an abort signal to send again. In the Basic Extrusion Force System (BIOS), upon receiving an OK signal, all processes are terminated and the state is zero.

As described above, the present invention automatically diagnoses whether the personal computer is fixed at a remote distance by the four states configured for remote diagnosis and the hardware for the communication function, thereby quickly and accurately providing A / S to the user who purchased the personal computer. The effect is to increase the reliability.

Claims (1)

An idle state step (IS) that sets the state to 1 through a counter step (CUT) that counts the number of rings ringing after the routine is executed, and a command sent from the host system (HS) to the personal computer (PC). Receive command state (RCS) which transmits by setting state to 2 and informs whether to perform a kind test, and resets signal after sending data once using send frame timer for state set in state 1 Send frame state step (SFS), which sends an additional checksum tone to check the last transmitted result, checks if the host system (HS) received the result correctly, and sets the state to 3. If the checksum of the different tones sent in 2 is correct, the host system (HS) sends an OK signal and Automatically diagnoses the failure of a personal computer at a remote distance by the Resume Recess State (RRS) which terminates all processes and sets the state to 0 when the BIOS sends a signal of abandonment or abandonment. Remote diagnostic method characterized in that.

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