JPS6248850A - Collecting device for public line coupling remote fault data - Google Patents

Abstract

PURPOSE:To obtain automatically detailed data at the occurrence of a fault without visiting a site by allowing a product itself to have a network controller so as to be coupled with a public line and collecting data under the condition. CONSTITUTION:A remote supervisory controller consists of a master station 1 and lots of slave station devices 2 and a monitor device 4 of the center is coupled via the public line 3. In the normal operation, the station 1 dials to the device 2 and when the reply signal is normal, the devices 1, 2 are coupled via the line 3 and data transmission is executed by a MODEM of a network controller NCU between both the devices. When a fault takes place, the device 1 stores a software trace data at the occurrence of fault and after the device 1 calls automatically the monitor 4, the devices 1, 4 are coupled. After the coupling, a fault trace data is transmitted from the device 1 and a printer T/W prints out the data in the device 4.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a remote monitoring and control device connected to a public line,
In particular, the present invention relates to a device suitable for remotely collecting trace data from a center to a delivery site when a failure occurs.

[Background of the invention]

Publicly known examples include JP-A-58-103044 and JP-A-5.
8-114148, JP-A-58-125151, and JP-A-56-140450,
There is nothing that specifies that a network control unit (NCU) is used.

The major difference between an NCU and an acoustic coupler is that an NCU can transmit automatically, but an acoustic coupler must be set manually, requiring human intervention.

[Purpose of the invention]

An object of the present invention is to provide a simple failure data collection device that allows remote diagnosis at a center without the need for on-site investigation.

[Summary of the invention]

There has been a need for remote diagnostic equipment for some time.

Adding a special device (for example, a monitor terminal device with an acoustic coupler) may be cost-intensive for the end user, and there has been some resistance.

In the present invention, the product itself has a network control device and can be connected to a public line, and under these conditions, in order to be an efficient data collection device, automatic transmission, status change priority, character transmission, error condition remote control, etc. I added a loading function.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. FIG. 1 is a block diagram of a public line coupled remote failure data collection device. A remote monitoring and control device (hereinafter referred to as a remote control device) is composed of a master station device 1 and a large number of slave station devices 2. This remote control device is connected to a center monitor device 4 via a public line 3. FIG. 2 shows the normal operation of these devices and the operation when a failure occurs. In normal operation, the master station device 1 dials the slave station device 2, and if the response signal is normal, the master station device 1 and the slave station device 2 are connected via the public line 3. After the connection, MODEM is established between the master station device 1 and slave station device 2 (Network control device: NCU includes 11ils)
Data transmission is performed by

When the data transmission is completed, the call is stopped, and the connection between the master station device 1 and the slave station device 2 with the public line is released. The operation when a failure occurs is to store the soft trace data at the time of failure in the master station device 1, automatically call the monitor device 4 from the 11th station device 1, and then communicate between the master station device 1 and the monitor device 4 via the public line. Combine with. After the connection, the fault trace data is transferred from the master station device 1 to the monitor device 4, and the monitor device 4 causes the T/W (printer) to automatically print the fault trace data.

FIG. 3 shows a more detailed failure data transfer procedure.

First, when an error occurs in any module, linkage bus data is stored in the failure data monitoring module. The storage method is to always trace the linkage bus data, and to stop and store the data when an error occurs.

The system monitoring module then detects the error and issues an automatic outgoing command. The transmitter/receiver module receives the automatic transmission command and transfers the fault data to the monitor device via the network control unit NCU. While data is being transferred to the monitor device, data transmission between the master station and the slave station as a remote control device is locked, but if a change in status between the master station and the slave station occurs at this timing,
Since it is necessary to give priority to status change data transmission, data transfer to the monitor device is interrupted and status change processing is prioritized.

Upon completion of the status change processing, data transmission to the monitor device is resumed. Even if an automatic call is made during the status change process, the status change process is given priority and the automatic call is made to wait until the status change process is completed, as described above. FIG. 4 shows a failure data transmission method (character transmission). The normal transmission procedure as a remote control device is the transmission/reception section (SEND, RF
C) from the character serial person output section (GA 5I1
0), After calling the slave station device via the NCU and connecting the line,
Switch to the teleconverter input/output section (TC5110) and connect to the master station.
Data is transmitted between slave stations using a specified transmission format. In the case of failure data transfer, in order to increase transmission efficiency, the above switching is not performed and CA 5I1
Transmit the character as 0. The trace data should be as shown in the figure.

One byte of data consists of 1-byte data with a start bit STA and a stop bit ST○ added before and after.

FIG. 5 shows the concept of remote loading under error conditions. Error conditions include not only module processor errors and various I10 errors, but also specific program operations that do not result in errors (for example, when running at a specific address). Error conditions are set in advance, but depending on the failure phenomenon, it is necessary to modify or add to the optimal conditions.

For example, in the case of erroneous control, it is necessary to set the error condition to be that a specific address related to the erroneous control was run. For this purpose, the error conditions ER of each module 5 to N can be remotely loaded from the monitor device 7. With this function, the trap conditions can be corrected without going to the site, so the first step It becomes possible to collect failure data.

〔Effect of the invention〕

According to the present invention, it is possible to significantly reduce the cost of fault investigation. That is, trap conditions can be set from the factory for non-reproducible errors, and detailed data when a failure occurs can be automatically obtained without going to the site. This is especially effective when multiple specialists are required for complex phenomena.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a public line-connected remote failure data collection device according to an embodiment of the present invention, FIG. 2 is a procedure diagram of normal operation and operation when a failure occurs, and FIG. 3 is a detailed failure data transfer procedure diagram. FIG. 4 is a diagram showing a failed data transfer method, and (character transmission) FIG. 5 is a diagram showing remote loading of error conditions. 1... Remote control master station device, 2... Remote control slave device, 3...
public line, 4... center monitor device, 5... transmitting/receiving module, 6-N... various modules.

Claims (1)

[Claims] 1. In remote monitoring control connected to a public line using a network control device, in order to remotely collect data from a center when a failure occurs, an error is detected in the master station device. It has a function of automatically transmitting fault trace data to the monitor device of the center under certain conditions, and a function of prioritizing a status change interrupt between the master station and the slave station during fault data transmission, A remote fault data collection device connected to a public line, characterized in that it has a function of character transmitting the fault data between devices, and further has a function of remotely loading error conditions from the monitor device.