JPH07271684A - Monitor device - Google Patents

Abstract

PURPOSE:To flexibly and efficiently monitor abnormality with a simple constitution by inputting abnormal information together with the characteristic number of a transmission equipment in information flowing through a bus, and outputting abnormality corresponding to the equipment number. CONSTITUTION:Transmission equipments 1 and 2 and an output device 3 such as a display device are connected to the bus L like a common network as a transmission line. Further, other transmission equipments 21-23 as slave machines are connected to the transmission equipment 2 by radio or transmission using an electromagnetic wave such as light. When data inputted to the slave equipment 21 of the transmission equipment 2 in an abnormal state exceeds an alarm set value and information which should be outputted to the bus L becomes abnormal, the abnormal information is outputted to the bus L together with the characteristic number of the equipment. Then, the output device 3 inputs the abnormal information together with the equipment number characteristic to the equipment among the information flowing through the bus L and the abnormality corresponding to the equipment number is outputted. Therefore, the abnormality can easily and sufficiently be monitored by utilizing the equipment number.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for monitoring abnormality of a device for transmitting data such as process amount.

[0002]

2. Description of the Related Art Conventionally, as a data transmission method of a data transmission device, a slave station transmits process data such as temperature collected by a slave station to a master station through a transmission line in response to a polling signal from the master station. After processing the captured data,
There is a polling method in which another slave station transmits again by a polling signal.

[0003]

However, in the polling system, since the main station is always required and the polling signal is always required, the device is complicated, and it takes a long time to respond and the communication speed is insufficient. In addition, there is a problem that it is difficult to take sufficient measures when an abnormality occurs.

SUMMARY OF THE INVENTION In view of the above points, an object of the present invention is to provide a monitoring device having a simple structure and capable of flexibly and efficiently monitoring an abnormality.

[0005]

According to the present invention, at least one transmission device that outputs abnormality information to a bus together with a device number unique to that device, and a device number unique to the transmission device among the information flowing through the bus. In addition, the monitoring device is provided with at least one output device that takes in the error information and outputs the error corresponding to the device number.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a structural explanatory view showing an embodiment of the present invention.

In FIG. 1, for example, a transmission device 1, a transmission device 2, and an output device 3 such as a display device are connected to a bus L such as a common network as a transmission line. Further, the transmission device 2 is further connected to other transmission devices 21, 22, and 23 as slave units by transmission by radio waves or electromagnetic waves such as light without transmission lines or wiring. Further, the output device 3 includes a display operation unit 31 and a display unit 32 as shown in FIG. 2, for example. In this example, the display / operation unit 31 corresponding to the five groups of areas A, B, C, D, and E, and the map 30 such as the layout and layout in the factory that shows the areas of the five groups are displayed on the display unit 32. Has been done.

In normal times, the information of the data such as the temperature input to the transmission device 1 is given a unique device number of the transmission device 1 after being subjected to necessary processing such as linearization and the like. Is output to.

The information of the data input by the transmission device 2 is also
A transmission device 2 that is transmitted to this transmission device 2 by, for example, light
The data input at 1, 22, and 23 is also transmitted to the transmission device 2
It is output to the bus L via the transmission device 2 with unique device numbers 1, 22, and 23. The device numbers of the respective transmission devices are different from each other, and include, for example, the following device numbers “02-01”, “02-02” ... And data.

02-01 300 ° C. 02-02 310 ° C. And, of the data flowing on the bus L in this way,
Other devices that connect the necessary data to the bus L will be fetched. For example, by setting the device number of a required transmission device or the like in the output device 3 in advance as the capture number, the information corresponding to this number can be captured and used. When the device has a plurality of data, a number for each data may be provided instead of the device number. In addition to the output device 3, various devices can be connected to the bus L.
To configure the system.

When an abnormality occurs, for example, when data input to the slave unit 21 of a certain transmission device 2 exceeds an alarm set value and the information to be output to the bus becomes abnormal, the device is as follows. The abnormal information “A” is output to the bus together with the unique device number “02-01” of the above.

02-01 A Then, the output device 3 takes in the abnormality information together with the device number unique to this device among the information flowing through the bus L, and outputs the abnormality corresponding to the device number. That is, in FIG. 2, if this abnormality information occurs in the area B, the output device 3
Is an operation display unit 31B indicating the area B of the operation display unit 31.
Is lit and monitored, and an alarm sound is generated if necessary. At this time, the abnormal position 41 is also displayed on the map 30 so that the operator or the like can take necessary measures and perform monitoring. If there are 5 monitoring points,
The display operation devices 31A to 31E in the zones A to E are lit corresponding to the respective places. Further, when there are a plurality of devices in a certain B area, the detailed map 30 of the B block is displayed as shown in FIG. 3 by pressing the operation display 31B corresponding to B in FIG. To do.

As shown in FIG. 3, the area B in the map 30 of FIG. 2 is enlarged and displayed on the display unit 32, and the abnormal positions 41, 42, 43 where the abnormality has occurred are displayed on the map 30 of FIG. To be done. By displaying the abnormality occurrence time together with the abnormality positions 41, 42, 43, the abnormality occurrence order can be known.

It should be noted that the transmission device 2 includes transmission devices 21 and 2.
When the abnormality information is input by transmission of light from 2, 23 or the like, each abnormality information with a necessary device number is output from the transmission device 2 onto the bus L and is taken into the output device 3 to detect the abnormal state. Can be displayed and monitored.

It should be noted that the configuration may be such that only the abnormal information is passed to the bus L without outputting the input data, and the abnormal state may be monitored. In this case, only the device number of the transmission device in which the abnormality has occurred is output to the bus L, and the abnormality information “A” or the like is unnecessary. Also, when there are multiple types of abnormal information,
The abnormality information may be output to the bus L separately from A1, A2, B1, B2, .... In the above example, the abnormal state is monitored, but it is also possible to determine and monitor a change in the state such as ON or OFF. That is,
The abnormality information includes these status information.

Further, the abnormality information from the output device 3 is displayed and output, and is also printed on a recording paper such as a printer for recording output, or is externally output for communication, or is output as a storage medium. The abnormality may be monitored.

[0017]

As described above, according to the present invention, at least one transmission device for outputting abnormality information to the bus together with the device number unique to the device and the device unique to the device among the information flowing through the bus. The monitoring device is provided with at least one output device that takes in the abnormality information together with the number and outputs the abnormality corresponding to the device number. For this reason, the main master station is not required, and the communication speed can be sufficiently high.
From the configuration of only a minimum of two devices and the bus, as long as the number allows, a combination of dozens or hundreds of devices can be configured easily, arbitrarily and flexibly, and the device number can be used in various systems. By using, the abnormality can be easily and sufficiently monitored. Further, since the display of the location of the abnormality can be clearly obtained on the map by using the device number, the state of the abnormality can be clearly grasped by visual observation, and an easy and quick response can be achieved. Further, displaying the time of occurrence of an abnormality on the map makes it easier to deal with the abnormality than the order of occurrence of the abnormality can be known. Further, if the abnormality information is collected by transmission by light or the like, wiring is not required, and the arrangement of the device can be flexibly performed, which enables flexible support. In addition to display output, it is possible to monitor abnormalities by various means such as printing on recording paper such as a printer for recording output, communication output to the outside, or storage medium output. it can.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an embodiment of the present invention.

FIG. 2 is a structural explanatory view showing an embodiment of the present invention.

FIG. 3 is a structural explanatory view showing an embodiment of the present invention.

[Explanation of symbols]

 1, 2, 21, 22, 23 Transmission device 3 Output device 31 Display operation unit 32 Display unit 30 Map 41, 42, 43 Abnormal position L bus

Claims (4)

[Claims] 1. At least one transmission device that outputs abnormality information to a bus together with a device number that is unique to that device, and that device that takes in the abnormality information together with the device number that is unique to the transmission device among the information flowing through the bus. A monitoring device comprising: at least one output device that outputs an abnormality corresponding to a number and performs monitoring. 2. The monitoring device according to claim 1, wherein the transmission device receives abnormality information from another transmission device by transmission by an electromagnetic wave such as light. 3. The output device performs an abnormal display output, an abnormal record output, an abnormal communication output, or an abnormal storage medium output.
The monitoring device described. 4. The output device according to claim 1, further comprising a display unit for displaying a map, which displays an abnormal position or an abnormal occurrence time on the map. The monitoring device described.