Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1990-03-13
1992-06-23
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
3185681, 318565, 36447419, 36441322, 36441313, G05B 1918
Patent
active
051246228
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a system for a remote diagnosis of a numerical control apparatus (CNC) for remotely diagnosing a failure of the CNC, and more specifically, to a system for a remote diagnosis of the CNC by which displayed data at the numerical control apparatus is transferred to a computer by a remote operation.
DESCRIPTION OF THE RELATED ART
Numerical control apparatuses have become more complicated and sophisticated due to advances in semiconductor technology including microprocessors and software technology, and the failure rate of numerical control apparatuses has been lowered by providing greater reliability technology. Nevertheless when a failure occurs, it is very difficult to find the cause thereof.
More specifically, when a complicated failure occurs, the service engineer must have an overall knowledge of electronics, software, machines and machining technology to be able to correct the failure.
Nevertheless, very few service engineers have sufficient knowledge to do this, and thus a waste of manpower is incurred if such a competent engineer must be exclusively posted at each factory wherein such numerical control apparatuses are installed.
SUMMARY OF THE INVENTION
Taking the above into consideration, an object of the present invention is to provide a system for a remote diagnosis of a CNC by which data displayed at the numerical control apparatus is transferred to a computer by a remote operation.
To solve the above problem, in accordance with the present invention, there is provided a system for a remote diagnosis of a numerical control system (CNC), for remotely diagnosing a failure of the CNC. The system comprises a computer including an operation key for executing a remote operation command, an operation command conversion means for converting the remote operation command to a text to be transmitted, a operation data conversion means for converting diagnosis data to a video signal, a display unit for displaying the data to be displayed, a communication control unit for transmitting the text to be transmitted and receiving the diagnosis data, a numerical control apparatus including a remote operation command decoding means for decoding the remote command, a diagnosis data selection means for selecting required diagnosis data based on the remote operation command, a display unit for displaying the diagnosis data, a video data conversion means for converting the diagnosis data to a text to be transmitted, a communication control unit for receiving the remote operation command and transmitting the diagnosis data, and a communication line linking the computer to the numerical control apparatus.
The computer generates and outputs a remote operation command to the numerical control apparatus through the communication line, and diagnosis data of the numerical control apparatus selected in accordance with this remote operation command is transferred to the computer.
Accordingly the service engineer can diagnose the cause of a failure of the numerical control apparatus in accordance with the data displayed on the computer.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of the system for a remote diagnosis of a CNC according to the present invention; and
FIG. 2 is a block diagram of hardware according to the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
An embodiment of the present invention will be described below with reference to drawings.
FIG. 1 shows a block diagram of an embodiment of a system for a remote diagnosis of a CNC according to the present invention wherein 10 designates a computer, which can be a 16 bits or 32 bits general personal computer (PC) or a work station. Here, the description is based on the use of a personal computer (PC). The personal computer 10 is installed at a service base, and remote operation commands are executed by a service engineer having the abovementioned overall knowledge. The service engineer generates a required operation command through the personal computer 10, obtains the necessa
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Hosokawa Masahiko
Kawamura Hideaki
Murakami Kunihiko
Sasaki Takao
Bergmann Saul M.
Fanuc Ltd.
Shoop Jr. William M.
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