JPS63224497A - Information display system - Google Patents

Abstract

PURPOSE:To eliminate unnecessary data transmission by providing a display terminal with a data storage part, sending fixed display data in information to be displayed when the display terminal is actuated and storing it in the data storage part, and sending variable display data after a request is sent from the display terminal. CONSTITUTION:When data on the starting of the display terminal 10 through a transmission and reception part 24 is received, a control part 21 reads all fixed display data out of a fixed display data memory 22 and sends out them to the display terminal 10. The control part 21 reads corresponding variable display data of one picture out of a variable display data memory 23 and sends them out when a request for the variable display data regarding the prescribed one picture is sent through the transmission and reception part 24. Then the variable display data is edited according to data sent out of a state change detection unit 3 and new variable display data is stored in the variable display data memory 23. Then whether or not there is alternation in the variable display data is detected and only the altered variable display data is sent out to the display terminal 10 through the transmission and reception part 24.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an information display system that can be used in various observation systems and the like.

(Prior art) For example, a configuration in which there are observation stations at multiple locations, and the data obtained from each observation station is collected using a solid device at one location, and then edited to capture information from multiple locations on one screen. The system for sending the information to each observation point and displaying it on the display device at each observation point is configured as shown in FIG. 11 to 1111 are
Display terminals 11 to 111 include CRT display devices and are arranged at each observation point. 21 to 21Il indicate sensors, and each sensor 21 to 2m is arranged at an observation point where a corresponding display terminal 11 to 2rn is present. sensor 2
The signals obtained by 1 to 2Ill are taken into the state change detection unit 3 that constitutes the solid device 6, are converted into data according to the state change of the signal, and are sent to the processing device 4 that also constitutes the solid device 6. sent to. The processing device 4 is configured as a microcomputer, and has fixed display data for displaying fixed information about the name of each observation point, observation items, etc. on one screen, and also has a state change detection unit 3. Based on the data obtained from the above, variable display data corresponding to fixed display data for each screen is edited and stored. A console device 5 is connected to the processing device 4, and by operating the console device 5, an operator can set and change desired fixed display data. On the other hand, the display terminals 11 to 1m are provided with a display request/cancellation key (not shown), and by operating this key, it is possible to determine which type of screen is requested to be displayed or whether to cancel the display request. The data shown can be sent to the processing device 4. Then, the processing device 4 that has received the data related to this display request sends a pair of fixed display data and variable display data related to the corresponding one screen to the corresponding display terminals 11 to 1m. As a result, the display terminal that has received the data displays information h to 7 that does not change over time on the screen 1A, as shown in FIG.
．． (for example, the name of the observation point) and correspondingly,
Information 81 to 8n (sensors 21 to 2) that can change over time
(corresponding to the signal obtained by IIl) is displayed.

However, according to conventional information display systems, fixed display data and variable display data are sent in pairs, and in the above example, after the first display request is made, fixed display data and variable display data are sent at predetermined time intervals or , when the variable display data changes, the fixed display data and variable display data are sent again.

Therefore, data transmission takes time, it takes time for the contents of one screen to be displayed, and it is necessary to send the same fixed display data many times, resulting in a lot of waste.

(Problems to be Solved by the Invention) As described above, in conventional information display systems, when sending display data to a display terminal, fixed display data and variable display data for one screen are always paired. The data transmission time and the time it takes to display the contents of one screen increase, especially when the number of display terminals increases.
When information that can change over time changes, it is not displayed quickly, and the same fixed display data is repeatedly transmitted, which is wasteful. The present invention was made in view of the shortcomings of the conventional information display system, and its purpose is to shorten the data transmission time and the time until the contents of one screen are displayed, and to eliminate unnecessary data transmission. It is an object of the present invention to provide an information display system that can be used without using the computer.

[Configuration of the Invention (Means for Solving Problems)] The present invention provides a display terminal that displays information in which information that can change over time and information that does not change over time are mixed on the same screen; In an information display system having a solid device that transmits display data that is the source of information display to a terminal, the display terminal is equipped with a data storage unit, and information that does not change over time among the displayed information is stored in the information display system. Corresponding fixed display data is transmitted when the display terminal is activated and stored in the data storage unit, while variable display data corresponding to information that changes over time is transmitted every time there is a request from the display terminal. This is how it was done.

(Function) According to the above configuration, the fixed display data is transmitted when the display terminal is activated and is stored in the storage section of the display terminal, so that the fixed display data can be transmitted without transmitting the fixed display data while the display terminal is in operation. It is possible to obtain fixed display data on the display terminal side. In addition, since variable display data is sent after a request is made from a display terminal,
Information that can change over time can be appropriately displayed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention, and although there are actually a plurality of display terminals 10 as shown in FIG. 4, they are omitted. In the same figure, 20 indicates a solid device, and the control unit 21 of the solid device 20 is configured as a microcomputer, and performs overall control of each part and executes the program of the flowchart shown in FIG. 3. The functions of each means shown in FIG. 2 are realized. The control unit 21 includes a fourth
Similar to the processing device 4 in the figure, data from the state change detection unit 3 and data from the console device 5 are provided. When these data are input, the control unit 21 stores the fixed display data 1 . Stores variable display data. When the control unit 21 receives data indicating that the display terminal 10 has been activated via the transmitting/receiving unit 24, it reads out all the fixed display data from the fixed display data memory 22 and sends it to the display terminal 10. Further, when a request for variable display data regarding one predetermined screen is required via the transmitting/receiving unit 24, the control unit 21 reads out the variable display data for the corresponding one screen from the variable display data memory 23, sends it out, and then , edits the variable display data based on the data sent from the state change detection unit 3, stores new variable display data in the variable display data memory 23, and stores the new variable display data in the variable display data memory 23, and also edits the variable display data corresponding to one screen displayed by the display terminal 10. It is detected whether or not there is a change in the display data, and only the changed variable display data is sent to the display terminal 10 via the transmitting/receiving section 24.

The display terminal 10 is provided with a control section 11, and the control section 11 is composed of a microcomputer. Control unit 11
is transmitted via the transmitter/receiver 12, line 30, and transmitter/receiver 24,
It sends and receives data to and from the control unit 21 of the solid device 20. When the control unit 11 receives the fixed display data via the transmitting/receiving unit 12, the control unit 11 stores the fixed display data in the data storage unit 13. The control unit 11 provides display data (fixed and variable) to the display control unit 14 when necessary. Display control section 14
creates a video signal based on the display data, and displays the display 15.
The screen is displayed on the screen.

Reference numeral 16 denotes an input unit, through which inputs are made to start or stop the display terminal 10, request to display a desired one screen, or release the display terminal 10, and data based on these inputs is provided to the control unit 11.

The control unit 21 of the information display system configured in this manner functions as shown in FIG. 2. That is, the editing means 211 edits the data given from the state change detection unit 3 and stores it as variable display data in the variable display data memory 23, analyzes the data received via the transmitter/receiver 24, and starts the display terminal. When the analysis means 212 receives the activation signal 212A, it reads out all the fixed display data from the fixed display data memory 22 and sends the transmitter/receiver 2
4, while receiving the screen identification signal 212B,
A data sending means 21 that reads variable display data for one corresponding screen from the variable display data memory 23 and sends it to the transmitter/receiver 24, and then allows the output of the comparing means 214 to pass through.
3. Upon receiving the screen identification signal 212B, the latest variable display data of the corresponding one screen is read from the variable display data memory 23, compared with the edited variable display data output from the editing means 211, and the changed variable display data is compared with the edited variable display data output from the editing means 211. It consists of a comparing means 214 that detects display data (not one screen's worth, but only the changed part) and outputs it from the data sending means 213.

The operation of the information display system as described above will be explained with reference to the flowchart shown in FIG. First, fixed display data is input by operating the console device 5, and the fixed display data is stored in the fixed display data memory 22 by the control unit 21. Next, when the display terminal 10 is activated, activation data is given from the input unit 16 to the control unit 11, and the control unit 11 sends the activation data to the transmitting/receiving unit 12, the line 30, etc.
, is transmitted to the control unit 21 via the transmitting/receiving unit 24. Thereby, the control unit 21 reads out all fixed display data from the fixed display data memory 22 and sends it out. Control unit 11
receives the data and stores it in the data storage unit 13. Next, when a request to display a required screen is input from the input section 16, corresponding data is sent from the control section 11 to the control section 21. Based on this data, the control section 21 reads out one screen's worth of corresponding variable display data from the variable display data memory 23 and sends it to the control section 11 (FIG. 3, 108 and 109).

On the other hand, before this, the control section 21 receives data from the state change detection unit 3 and stores the variable display data in the variable display data memory 23 (101.102.
106.107). However, after the display request is made, the control unit 21 controls the display from 101.102 to 103 in FIG.
~105 and execute the program. Therefore, only the changed variable display data is sent from the control section 21 to the control section 11. On the other hand, upon receiving the requested fully variable display data for one screen, the control section 11 reads out the corresponding fixed display data for one screen from the data storage section 13 and sends them in pairs to the display control section 14 .

As a result, screen 1 displays a display as shown in Figure 5.
A is obtained. After this, when the variable display data is changed, only the changed part of the variable data is sent, so the control section 11 sends it as is to the display control section 14. The display control unit 14 creates and outputs a video signal based on the changed variable display data. As a result, only the information that has been changed will be displayed on the screen.

In this way, according to this embodiment, all fixed display data is
Since the display terminal has a startup connection for the display terminal, unnecessary transmission is eliminated. Furthermore, since only variable display data is transmitted after a display request is made, transmission time can be shortened. Furthermore, after the first transmission of the variable display data, only the changed variable display data is transmitted when the same screen is displayed, making it possible to more efficiently shorten data transmission. Therefore, it is suitable for systems with many display terminals.

[Effects of the Invention] As explained above, according to the present invention, data can be transmitted without waste, the time required for data transmission can be shortened, and the time required to display one screen can also be shortened. It is something.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
3 is a flowchart for explaining the operation of the main parts in FIG. 1, FIG. 4 is a block diagram showing the entire information display system, and FIG. 5 is a display example on a display terminal. FIG. 10...Display terminal 11.21...Control unit 13
...Data storage unit 22...Fixed display data memory 23...Variable data display memory 211...Editing means 212...Analysis means 213
...Data sending means 214...Comparison means agent
Patent Attorney Nori Chika Yudo Sanno −

Claims (2)

[Claims] (1) A display terminal that displays a mixture of information that can change over time and information that does not change over time on the same screen, and a center that transmits display data that is the basis for displaying information to this display terminal. In the information display system having a device, the display terminal is provided with a data storage unit, and fixed display data corresponding to information that does not change over time among the displayed information is transmitted when the display terminal is started, and the data is stored in the display terminal. An information display system characterized in that variable display data corresponding to information that changes over time is transmitted after a request is received from the display terminal while storing the variable display data in a storage unit. (2) In the case where variable display data corresponding to information that changes over time is transmitted after a request from a display terminal, the second display when the display terminal is displaying based on the same fixed data The information display system according to claim 1, wherein in subsequent transmissions, only the variable display data that has changed is transmitted.