JPS617915A - Touch screen controlling system - Google Patents

Abstract

PURPOSE:To obtain a touch screen controlling system having high reliability by providing such a spatial redundancy as plural parts one-push operation to an input operation, with respect to a touch screen whose simple substance reliability is low. CONSTITUTION:In case an operator has decided that an RCIC94 should be started as a result of an inspection of a plant state of an atomic reactor, he pushes each ''RCIC start part'' of a touch screen 1 and a touch screen 2 by using both his hands. These signals are inputted to a CPU6 through touch screen input control devices 1, 2 (4, 5), processed by an input processing part, and thereafter, sent to a comparing and collating part. The comparing and collating part decides them to be a normal input since both of the two inputs request simultaneously ''RCIC start'', and outputs a start command to an RCIC control device 93. CRTs 1, 2 (31, 32) change a color of ''RCIC start'' displayed in green so far, to yellow, and indicate that the processing has been received. When the RCIC94 is started actually, the ''RCIC start'' is changed to red from yellow.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a touch screen control method, and particularly to a highly reliable control method.

[Background of the invention]

A touch screen is a device that detects the coordinates of the point you press with your finger on a transparent plate attached to a CRT screen.It is used in combination with a CRT and is already on the market. There is. There are various methods for detecting the coordinates of the pressed point. For example, as shown in Figure 1, by combining rectangular transparent electrodes in each direction,
An air gap is provided between them to prevent short circuits, and only the X and Y coordinates of the pressed point are electrically connected.

When this is installed on the CRT screen, the screen will be divided as shown in Figure 2. For example, pressing D3 will display the screen in Figure 1 and 2.
As shown in the figure, the electrode plate and electrode d are brought into conduction.

In addition, there is a method in which light emitting diodes and light receiving elements are arranged in the x and y directions to detect when the light beam at the pressed point is interrupted.
There are methods that detect changes in the capacitance of a pressed point.

All of the above methods use mechanical, electrical, optical, electronic, etc. devices to detect the pressed point and transmit the x and y coordinates to a computer, and are different from conventional mechanical contacts made by pushing or twisting. When compared, reliability decreases considerably. For this reason, we especially introduced a touch panel in the plant control system to start the pump! -Low reliability was a problem when performing operations such as stopping and opening/closing valves.

[Purpose of the invention]

The purpose of the present invention is to provide a two-touch screen control system with high reliability by performing input control with temporal and spatial redundancy for touch screens with low unit reliability. be.

[Summary of the invention]

1. A CRT display device, a touch screen that detects the pressed position on a transparent plate attached to the screen of the CRT display device, a touch screen control device that inputs the position signal to a computer, and input content based on the signal. In the man-machine processing system, which consists of a central processing unit with a built-in program that interprets the information and executes the corresponding processing, the operator can input the L at multiple locations, which normally could be completed with a single push. It is characterized by increasing the reliability of input by performing an input operation with spatial redundancy of a single press operation.

[Embodiments of the invention]

FIG. 3 shows an embodiment of the present invention. In this embodiment, the operating status of a nuclear power plant 8 is monitored, and the engineered safety facility 9 is activated based on the operator's judgment when an abnormality or accident occurs. The figure is considerably simplified for convenience of explanation.

The states of the reactor system 81 and turbine system 82 are input to the central processing unit 6 by the process input/output device 74, and the operating states are displayed on the CRTI, 2 (31) via the CR7 display control devices 1, 2 (33, 34).゜32). An example of the display is shown in Figure 4. When an abnormality or accident occurs in a nuclear reactor, it may not be sufficient to simply shut down the reactor (scram), and the 7th operator must use the high-pressure core spray system ( H
FO2) 92, reactor isolation cooling system (RCZC) 94,
An automatic depressurization system (ADS) 96 and a low pressure core spray system 98 are used as appropriate via these control devices 91.93, 95.97.

In this embodiment, the activation for this purpose is carried out on the touch screen 1.2 The touch screen shown in FIG. 1 is used,
The resolution is 6 in the X-axis direction and 5 in the Y-axis direction. The lower part of the entire plant screen in Figure 4 is used for screen selection, and when you press "Work cost thread operation screen" on touch screen 1, C
A screen shown in FIG. 5 is displayed on the RT 31. This screen selection function does not require particularly high reliability, so the process can be completed with a single touch. Similarly, touch screen 2
The same screen is also displayed on the CRT 32.

As a result of monitoring the plant status of the reactor, the operators found that the RCI
If you decide that you should start C94, use both hands to press "R" on each of touch screen 1 and touch screen 2.
CIC activation section'' is pressed. These signals are input to the CPU 6 via the touch screen input control devices 1, 2 (4, 5), processed by the 6th input processing section 61, 62, and then compared and verified. It is sent to the output processing unit 64 and the process input/output device 74. At this point, both of them receive requests to start the RCIC at the same time, and the comparison and verification unit 63 determines that the input is normal. A start command is output to the control device 63. Also, the CRT display devices 1 and 2 (31, 3
2), the RC in Figure 5, which was previously displayed in green
"I'C Activation" turns yellow to indicate that the process has been accepted. When the system status determination unit 68 confirms through the process input device 74 that the RCIC: 94 has actually activated in accordance with the RCIC activation command, , ``RCIC, START'' is changed from yellow to red, and ``RCIC STOP'' is changed from red to green to indicate that the RCIC 74 is in the activated state.

Perform the stop operation in the same manner as above, and
The display color of the C stop button and the message changes from green to yellow to indicate that the message has been accepted. After the system status determination unit 68 actually confirms the stoppage, the message changes to red and "R'CRC start" changes from red to green.

According to this embodiment, the touch screen, touch screen input control device, input processing unit, etc. operate as described above, making it possible to keep the probability of erroneously starting or stopping equipment even though the operator has not requested it to be extremely low. becomes.

A second embodiment of the present invention will be shown below. In this embodiment, the man-machine interface is processed using a CRT and a touch screen, and the configuration thereof is shown in FIG. CRT3
1, the screen shown in FIG. 8 is normally displayed in green. When a coin is inserted, the coin input identification device 83
determines the coins inserted, adds up the total amount, and inputs the sum to the CPU 6 via the process input/output device 74.

If the input amount is 50 yen or more, the characters ``Orange'', ``Pabanana'', ``Strawberry'', and ``Paringo'' in the row of ``Non-fruit juice'' in Figure 8 will change to red to indicate that they can be sold. Flicker.

If the above amount is 100 yen or more, in addition to the ``juice without fruit juice'' shown in Figure 8, ``50% 50% juice'' will be added.
Even the 'apple' flickers.Touch screen 1
When you press once on an item that is flickering red, only the item in question lights up yellow continuously.When you press the same part again for confirmation, the CPU 6 recognizes it as a legitimate input and issues a command to the sales item dropping device 85 to drop the sales item. CRT31 at the same time as output
All screens are displayed in green. If a part other than yellow is pressed, it is judged as an incorrect input, the entered coin is returned, and the screen of the CRT3L is displayed entirely in green.

According to this embodiment, the CRT and touch screen are 1
Highly reliable input is possible without increasing the amount of material on the machine.

(Effects of the Invention) According to the present invention, by providing redundancy to the input control method for a touch screen that is unreliable as a single item, it is possible to make the system highly reliable.
Nuclear power plants, etc., which were previously thought to be inapplicable,
It is now applicable to fields that require a high level of reliability.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the principle configuration of the touch screen, Figure 2 is a diagram of the screen configuration of the touch screen, and Figure 3 is an illustration of the basic configuration of the touch screen.
4 and 5 are CRT screen configuration diagrams,
FIG. 6 is a block diagram of the program configuration, FIG. 7 is a configuration diagram of the second embodiment, and FIG. 8 is a configuration diagram of a CRT screen. 4...Touch screen input control device, 5...Touch screen input control device 2.61...Input processing unit,
64... Output processing unit, 74... Process input/output device.

Claims (1)

[Claims] 1. A CRT display device, a touch screen that detects a pressed position on a transparent plate attached to the screen of the CRT display device, a touch screen control device that inputs the position signal to a computer, and an input device based on the signal. In the man-machine processing system, which consists of a central processing unit with a built-in program that interprets the content and implements corresponding processing, input operations from the operator can be completed at multiple locations with a single press operation.・A touch screen control method that improves the reliability of input by performing input operations with spatial redundancy, such as a single press operation.