JPH03269800A - Sensor monitor - Google Patents

Abstract

PURPOSE:To easily grasp the operating state of each sensor by outputting a chrominance signal for changing the color of a symbol mark displayed on a display device and displaying the sensor which detects abnormality in a different color. CONSTITUTION:The sensor monitor is provided with a sensor monitoring means 4A for monitoring the operating state of various sensors, and discriminating whether the sensor detects abnormality or not. Also, the monitor is provided with a color display changing means 4B for outputting a chrominance signal for changing a color of a symbol mark displayed on a display 2 and displaying the sensor which detects abnormality in a different color, when it is confirmed that the sensor detects abnormality by the sensor monitoring means 4A. In such a way, the operation state of all the sensors can be known at a glance.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sensor monitoring device, and more particularly to a sensor monitoring device configured to monitor the operating status of various sensors for detecting abnormalities.

Conventional technology For example, at gas stations that handle flammable materials such as gasoline and diesel oil, if a disaster such as an earthquake or fire occurs, it may lead to a major secondary disaster. A large number of various disaster prevention sensors such as sensors, heat sensors, and smoke sensors are installed. Conventionally, when detection signals from these disaster prevention sensors are output, an alarm sounds to notify workers of the occurrence of a disaster.

Facilities where a large number of sensors are installed as described above are equipped with sensor monitoring devices that automatically monitor the operating status of various sensors. In this type of sensor device, for example, an operation confirmation lamp is provided for each sensor on a panel, and the operation status of the various sensors is monitored by lighting the lamp.

Problems to be Solved by the Invention However, in the conventional sensor monitoring device, a large number of operation confirmation lamps are provided to correspond to a large number of sensors, which makes the entire device large-scale. Additionally, if there are a large number of sensors, the connections between them will become complicated, making it difficult to accurately match each sensor to the operation confirmation lamp.Furthermore, if multiple types of sensors are installed, the sensor will detect an abnormality. However, there was a problem in that it was difficult to instantly determine what sensor was activated, which delayed the response to a disaster.

Therefore, an object of the present invention is to provide a sensor monitoring device that solves the above problems.

Means for Solving the Problems The present invention provides a display V that displays the arrangement of a plurality of sensors with a symbol mark.
a sensor monitoring means for monitoring the operating status of the plurality of sensors and determining whether each sensor has detected an abnormality; and when it is confirmed by the sensor monitoring means that the sensor has detected an abnormality; , color display changing means outputting a color signal for changing the color of the symbol mark displayed on the display device and displaying a sensor that has detected an abnormality in a different color.

When an operational abnormality occurs, the arrangement of multiple sensors is displayed with a symbol mark, and when a sensor detects an abnormality, the symbol mark of the corresponding sensor is displayed in a different color, so you can see the operating status of all sensors with your eyes. I can do it.

Embodiment FIGS. 1 to 4 show a first embodiment of the sensor monitoring device according to the present invention.
An example is shown.

In Fig. 1, the control device @ (computer) 1 is a CRT.
A display (display device) 2, a keyboard 3 for performing various operations, a sensor monitoring means 4A that monitors the operating status of various sensors (described later), and determines whether the sensor has detected an abnormality; It has a color display changing means 4B which outputs a color signal to change the color of the symbol mark displayed on the display when it is confirmed that an abnormality has been detected, and displays the sensor that has detected the abnormality in a different color.

FIG. 2 shows a disaster prevention monitor displayed on the screen of the display 2, and this disaster prevention monitor has the same configuration as a plan view of the schematic configuration of the gas station 5 viewed from above. In addition, on the disaster prevention monitor, various devices arranged at the gas station 5 are displayed with symbols for easy understanding.

Here, since the gas station 5 and the monitor have the same configuration as described above, the specific configuration of the gas station 5 will be described with reference to FIG. 2.

The site of the gas station 5 is roughly rectangular, and within this site there is an office 6 where the control device 1 is installed, and a plurality of gas supply devices 7a to 7d for refueling with gasoline, light oil, etc. There is. In addition, each of the four oil supply devices 78 to 7d is a second oil supply device.
Although shown as rectangular symbols in the figure, they are actually placed at intervals that allow a customer's car (not shown) to pass through. Although the oil supply devices 78 to 7d are not shown, they include a fuel pump that pumps up oil stored in an underground tank, a flow meter that measures the amount of oil supplied, a display that displays the accumulated amount of oil supplied, and a fuel pump that pumps up the oil stored in the underground tank. Various devices are provided, such as a connected refueling hose and a refueling nozzle provided at the tip of the refueling hose.

Further, at the gas station 5, flame sensors 8a to 8e detect ultraviolet rays in the vicinity of the gas supply devices 78 to 7d and in the vicinity thereof when a fire occurs.
and a heat sensor 9 for detecting the occurrence of a fire in the office 6. A large number of various sensors such as the smoke sensor 10 are arranged.

As shown in FIGS. 3A and 3B, the flame sensor 8 installed outdoors has an ultraviolet detection sensor 24 housed in a sealed cover 17.
It is held by a bracket 19 so as to be positioned on the back side of an ultraviolet-transmitting glass 18 fitted into an opening 17a of 7. Further, an operation confirmation light 20 is provided on the front surface of the cover 17, and a control circuit 21 is provided inside the cover 17.

Therefore, even if the flame sensor 8 is installed outdoors, the internal ultraviolet detection sensor 24 is connected to the cover 17 and the ultraviolet transmitting glass 18.
The structure is protected by wind, rain, and temperature changes. The control circuit 21 activates the flame sensor 8 at regular intervals.
The situation is monitored, and when the count number of the ultraviolet detection signal exceeds a preset value, it is determined that a fire has occurred, and the operation confirmation light 20 is turned on to inform the outside that an abnormality detection operation is in progress. Further, the control circuit 21 outputs a lighting command signal and also outputs an abnormality detection signal to the control device 1.

Note that the cover 17 that protects the ultraviolet detection sensor 24 is not only protected from wind and rain, but also sunlight, welding sparks, and mercury lamps.

In order to prevent false detection due to ultraviolet rays emitted from Panda Ruff etc., it is installed to block ultraviolet rays as a disturbance. Further, in the control circuit 21, the fire detection sensitivity can be adjusted by changing the set count number of the ultraviolet light sensing signal.

Therefore, when inspecting the sensor, use a flashlight or the like using an ultraviolet lamp that emits ultraviolet light near the maximum sensitivity frequency of the ultraviolet detection sensor 24 to illuminate the ultraviolet-transmitting glass 18 and turn on the operation confirmation light to visually inspect the sensor. Operation check can be performed.

Further, as shown in FIG. 1, the oil supply devices 7a to 7d and various sensors (flame sensors 8a to 8e, heat sensor 9, smoke sensor 1
0) are respectively connected to the control device @1, and the control device 1 performs oil supply management of each oil supply device 78 to 7d and monitors various sensors as described below. Further, an alarm device @11 is connected to the control device @1 to issue a notification on the occurrence of an abnormality such as a fire.

Incidentally, underground tanks (not shown) are buried underground in the gas station 1 in which oil liquids such as gasoline and light oil are stored according to oil type. During refueling work, the pumps (not shown) in each of the refueling devices 7a to 7d pump up the oil from the underground tank and refuel the fuel tank (both not shown) of the automobile.

In this way, when refueling work is performed, the sensor monitoring mode is set in the control 1H position 1, and various sensors are monitored.

Here, a description will be given of the processing executed by the control device M1 that operates as a sensor monitoring device. Incidentally, the operation program (sensor monitoring means 4) shown in FIG. 4 is stored in the memory within the control device H1.

In FIG. 4, in step 31 (hereinafter steps will be omitted), when the various sensors do not detect an abnormality, the m-control device 1 moves to S2 and checks whether the disaster prevention monitor is to be displayed on the display 2. Normally, when there is no abnormality, the above step S1.82 is repeated. Here, it is assumed that a fire occurs near the fuel supply device 7a, for example.

Then, the flame sensor 8a disposed near the fuel supply device 7a detects the occurrence of a fire and outputs a detection signal. When a fire detection signal is output from the flame sensor 8a, the control device 1 operates 81.
Then, the process moves to 83, and the layout of the gas station 5 shown in FIG. 2 is displayed on the screen of the display 2. Various sensors (flame sensors 8a to 8e, heat sensor 9, smoke sensor 10, etc.) are displayed with symbols for each type, and the operator can see the location of each sensor at a glance. Normally, the symbol mark of each sensor is displayed as "affirm", and when a sensor detects an abnormality such as a fire outbreak, a color signal is output that changes the color of the sensor concerned, and the color of the sensor that detected the abnormality is changed to "blue". "from"
Red.

Therefore, the operator can easily confirm where in the gas station 5 a fire has occurred based on the change in color of the symbol mark, and can immediately take countermeasures such as extinguishing the fire or reporting to the fire department. Further, when the flame sensor 8a outputs a detection signal, each pump of the refueling devices 78 to 7d is stopped, and an alarm is issued from the alarm device 11 to handle abnormality occurrence, such as notifying workers who are refueling that a fire has occurred. (S4).

If the fire is extinguished after executing the above abnormality occurrence processing, 85
When the operator presses the "disaster prevention monitor end key" (not shown) on the keyboard 3, the display 2 disappears and returns to Sl. Then, the process of 81.32 or Sl, 83 to S5 is repeated. Also, the flame sensor 8
Flame sensors 8b to 8d other than a, heat sensor 9, smoke sensor 1
0 outputs a detection signal, the same process as above is executed.

Note that if the various sensors are out of service due to a failure or the like in S3, the symbol mark is displayed in "white".

Also, in S2, the "monitor display key" on the keyboard 3
(not shown) is pressed, the device 11 moves to S3 and displays the layout of the gas station 5 shown in FIG. 2 on the screen of the display 2. The monitor can also be used to perform inspections before the start of the day or at the end of the day. That is, for example, by blowing cigarette smoke or the like onto the smoke sensor 10, an abnormal environment is forcibly created, and the smoke sensor 10 is activated in S3, so that the symbol mark of the smoke sensor 10 displayed on the display 2 changes from "blue" to " You can see that it is operational by switching to "red".

In addition, in the above embodiment, other types of sensors may be provided as the various sensors. It goes without saying that the number of sensors installed is not limited to the above embodiment.

A second embodiment of the present invention is shown in FIGS. 5 to 8.

In each figure, the same parts as in the first example of pus are given the same reference numerals, and the explanation thereof will be omitted.

In FIG. 5, a flame sensor 8 for detecting the occurrence of a fire is supported by a rotating mechanism (moving device) 12 and is movably provided. The rotating mechanism 12 is connected to each oil supply device 7a to 7 from the office 6.
It consists of a motor 14 suspended from the ceiling 13 extending above d, and an arm 15 that is driven by the motor 14 and rotates above each oil supply device [7a to 7d, and a flame sensor is attached to the tip of the arm 15. 8 is provided.

When each refueling device 7a to 7d is installed outdoors, a flame sensor 8 detects the occurrence of a fire near the refueling bag @78 to 7d.
Because they are used under conditions such as exposure to wind and rain and temperature changes, they are expensive because they have a structure that can withstand environmental changes as shown in Figure 3. Therefore, each oil supply device 17
If the flame sensor 8 is installed every 7d from a to 7d, the equipment will be expensive. Therefore, in this embodiment, the flame sensor 8 is attached to the tip of the arm 15 of the rotating mechanism 12 to expand the monitoring area, and one flame sensor 8 can be used to control the entire oil supply system f7a~
7d, making it possible to detect a wide range of fire outbreaks.

As shown in FIG. 5, the flame sensor 8 and the motor 14 of the rotation mechanism 12 are connected to the device O device 1, respectively.

The control device 1 also includes a sensor monitoring means 16A that displays the moving position of the flame sensor 8 on the display 2 as shown in FIG. 6 when an abnormality detection signal is output from the flame sensor 8, and a color display changing means 16B. have

Here, the processing executed by the control device 1 will be explained. In FIG. 8, in S11, the presence or absence of a command to move the flame sensor 8 is checked. When the operator operates the keyboard 3 to input a rotation command in S11, the motor 1 is transferred to 812.
A motor drive signal is output to 4. In the next step 813, it is checked whether the rotation angle of the arm 15, that is, the movement position of the flame sensor 8 has been rotated by a preset angle. The angle of the arm 15 can be set to any desired angle by operating the keyboard 3, and the rotational position of the arm 15 can be detected by a resolver (not shown) built into the motor 14 or the like.

At step 813, when the arm 15 rotates to a preset angle, step S14. Proceeding to S15, the motor 14 is rotated in the opposite direction, and the arm 15 and the flame sensor 8 are moved in the opposite direction. At 816, it is checked whether the arm 15 and the flame sensor 8 have returned to the reference position @ (starting position). Arm 15 and flame sensor 8 reach reference position 8
Return to 11.

As described above, while the flame sensor 8 is rotating above the oil supply devices 7a to 7d due to the rotational operation of the rotation mechanism 12, the control 1@l! 1 is executing the process shown in FIG.

Therefore, in this embodiment, when the flame sensor 8 outputs an abnormality detection signal, the layout of the fueling station 5 shown in FIG. 6 is displayed on the screen of the display 2 in S3 shown in FIG. In that case, the arm 15 will stop at that rotational position, and the symbol mark of the flame sensor 8 will change from "blue" to "red". Therefore, the operator will be able to determine where the fire occurred near the fuel supply devices 7a to 7d. You can immediately check the situation and take immediate countermeasures.

In the above description, the flame sensor 8 is provided on the rotating mechanism 12, but the flame sensor 8 is not limited to this, and may be movable by being provided on an elevating mechanism or a cart that runs on the floor. Moreover, it goes without saying that sensors other than the flame sensor may be moved.

A third embodiment of the present invention is shown in FIGS. 9 to 11. still,
In each figure, the same parts as in the first embodiment are given the same reference numerals, and their explanations will be omitted.

In FIGS. 9 and 10, flame sensors 8a to 8C for detecting the occurrence of a fire are located near the refueling devices a to 7C, and sound generating devices 22a to 22a to function as alarm devices in the event of a fire.
22c is provided. These flame sensors 8a to 8C
The sound generating devices 22a to 22c are each connected to the control device 1. The control device 1 also includes a sensor monitoring means 23A which, when an abnormality detection signal is outputted from the flame sensors 8a to 8C, determines the detection contents of the sensor and notifies the operator etc. of the abnormality detection contents by the sound generation devices 122a to 22G. , and color display changing means 23B.

Here, the processing executed by the control device 1 will be explained. In FIG. 11, first, at 821, it is checked whether the flame sensor 8a installed near the first oil supply device 7a is in an on state (abnormality detection state) for a certain period of time. This condition of a certain period of time is set in order to prevent malfunctions due to disturbances (ultraviolet rays other than fire), etc., and the certain period of time can be arbitrarily changed by operating the keyboard 3.

In S21, when the flame sensor 8a outputs an abnormality detection signal for a certain period of time or longer and remains on, it is assumed that a fire has occurred near the fuel supply device 7a, and the sound generator 22a issues a message "Fire has occurred" to notify the operator. (S22)
. At the same time, execute abnormality processing. That is, the oil supply device 7a
Stopping the refueling pump (not shown) also causes the layout of the refueling station 5 shown in FIG. 10 to be displayed on the screen of the display 2. Then, the symbol marks of the flame sensor 8a and the sound generator 22a displayed on the display 2 are switched from "blue" indicating that they are normal to "red" indicating that an abnormality has occurred (S23).

In the next step 824, it is checked whether the flame sensor 8b installed near the second oil supply device F7b has been on for a certain period of time or more.

When the flame sensor 8b outputs an abnormality detection signal for a certain period of time or more at 824, it is assumed that a fire has occurred near the fuel supply device 7b, and the second sound generating device 22b issues a message "Fire has occurred" (325).

At the same time, abnormality occurrence processing similar to step 323 is executed.

That is, the layout of the gas station 5 is displayed on the screen of the display 2, and the colors of the symbol marks of the flame sensor 8b and the sound generator 22b are changed from "blue" to "red" (326).
.

Further, in the next step 827, it is checked whether the flame sensor 8C installed near the third oil supply device 7C has been on for a certain period of time or more.

When the flame sensor 8C outputs an abnormality detection signal for a certain period of time or more in S2a, it is assumed that a fire has occurred near the refueling device 7C, and the third sound generator 22G issues a message "Fire has occurred" (328).

At the same time, in 829, the layout of the gas station 5 is displayed on the screen of the display 2, and the display of the symbol marks of the flame sensor 8G and the sound generator 22c is switched from "blue" to "red"(S29>.

In addition, in each of the above 821.824.827, the flame sensor 8
When a to 8C are in the off state (when no abnormality occurrence is detected) or the on state does not reach a certain period of time, the above alarm and abnormality occurrence processing are not executed, and the monitoring processing for each flame sensor 8a to 8c continues. It will be done.

In this embodiment, when a fire occurs near the fuel supply devices 78 to 7c, workers in the vicinity can be immediately notified of the fire by a message from the voice generators 22a to 22c. Therefore, if workers are refueling, they can stop refueling and immediately extinguish the fire.
Damage caused by fire can be kept as small as possible. At the same time, the layout of the gas station 5 is displayed on the screen of the display 2, and the color of the symbol mark of the flame sensor and sound generator that detected the abnormality changes, and the operator in the office 6 is also informed of the occurrence of the abnormality and its location. so you can let me know,
The operator can immediately take measures to deal with a fire outbreak.

Further, in the above embodiment, the flame sensors 8a to 8C have been described as an example, but the present invention is not limited to this, and the present invention may be used for other devices such as an earthquake sensor. In that case, the sound generator emits a message indicating that an earthquake has occurred.

Further, in the above embodiment, each of the flame sensors 8a to 8C and the sound generating station may be integrated as one unit. Moreover, although each of the above embodiments has been described using a gas station as an example, it goes without saying that the present invention can be applied to facilities other than gas stations.

Effects of the Invention As described above, the sensor monitoring device according to the present invention monitors the operating status of a plurality of sensors, and when a sensor detects an abnormality, outputs a color signal that changes the color of the sensor that detected the abnormality, and displays the corresponding color. In order to display the sensor in a different color than before, even in a facility where not only a single KWJ configuration but also a large number of different types of sensors are installed, you can simply check the color of the symbol mark on the display device. The operating status of each sensor can be easily grasped, and even if an abnormality such as a fire occurs, the location and details of the abnormality can be immediately known, and countermeasures can be quickly taken to prevent disasters. can be kept as small as possible.

In addition, by providing movable sensors, it is possible to monitor a wide area with a small number of sensors, which reduces the number of expensive sensors and lowers costs.In addition, in the case of facilities that require a large number of sensors, Management can be performed easily.

In addition, when the sensor detects an abnormality, it is possible to notify the worker etc. of the abnormality by determining the detection content based on the signal from the sensor and notifying the abnormality detection content.
It has the advantage of being able to effectively reduce damage because countermeasures can be taken depending on the nature of the abnormality.

[Brief explanation of drawings]

Figure 1 is a schematic diagram of the first embodiment of the sensor monitoring device according to the present invention, Figure 2 is a diagram of a disaster prevention monitor displayed on a display, and Figures 3 (A) and (B) are diagrams of a flame sensor. The front view, cross-sectional view, and Figure 4 are the 5I! executed by the control device! A flowchart for explaining the first principle, FIG. 5 is the second principle of the present invention.
A front view of a gas station for explaining the embodiment, FIG.
A schematic configuration diagram of the embodiment, FIG. 7 is a diagram for explaining the disaster prevention monitor of the second embodiment, FIG. 8 is a flowchart of the processing executed by the control device, and FIG. 9 is the third embodiment of the present invention. A schematic configuration diagram of an example, FIG. 10 is a diagram for explaining the disaster prevention monitor of the third embodiment, and FIG. 11 is a flowchart of processing executed by the control device. 1...Control device, 2...CRT display, 3.
- Keyboard, 4A, 16A, 23A...Sensor monitoring means, 4B, 16B, 23B...Color display changing means, 5
...Refueling station, 7a-7d...Refueling device, 8.8a-
8e...Flame sensor, 9...Heat sensor, 10...Smoke sensor, 11...Alarm device, 12...Rotation mechanism, 1
4...Motor, 15...Arm, 17...Cover, 18...Ultraviolet transmitting glass, 20...Operation confirmation light, 21...Control circuit, 228-22C...Sound generator .

Claims (3)

[Claims] (1) A display device that displays the arrangement of a plurality of sensors with a symbol mark; a sensor monitoring device that monitors the operating status of the plurality of sensors and determines whether each sensor has detected an abnormality; and the sensor monitoring device when it is confirmed that the sensor has detected an abnormality, a color display changing means outputs a color signal for changing the color of the symbol mark displayed on the display device, and displays the sensor that has detected the abnormality in a different color; A sensor monitoring device characterized by the following. (2) The sensor according to claim (1), wherein the sensor is provided in a moving device, and the sensor monitoring means causes the display device to display the movement position of the sensor when the sensor detects an abnormality. Monitoring equipment. (3) The sensor monitoring device according to claim 1, wherein the sensor monitoring means, when each of the sensors detects an abnormality, notifies the detection content detected by the sensor by voice.