JPH01286065A - Operation display device - Google Patents

Abstract

PURPOSE:To make unnecessary a CRT, a disk, etc., to make small in size and light in weight, and to save a space by adopting a sheet keyboard and a flat display, and ROM-operating a program. CONSTITUTION:A sheet keyboard 13 for a data input operation and a flat display device 14, which can display a graphic, are provided, for example, at a door 12 in the front surface of a case main body 11. In the case main body 11, a RAM for data memory, a ROM where the basic program having a real time/multi-task function is stored, the ROM where an application program prepared by a high level language is stored, and a CPU to execute a processing according to the contents of the RAM and the ROMs are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an operation display device having a simple operator console function.

(Prior Art) Conventionally, as a device for remotely monitoring the temperature inside a grain silo, there have been devices that are made up of general-purpose instruments such as dedicated data loggers, and devices that are made up of a personal computer. Ta.

A device consisting of general-purpose instruments receives process variables scattered over a wide range, such as temperature, pressure, and flow rate, through cables, processes the data, and displays the processing results in numbers on a numerical display. It has become. This type of device has the advantages of being small, having good environmental resistance against temperature and dust, and being inexpensive.

In addition, a device consisting of a personal computer processes data using a program stored on a disk such as a floppy disk or hard disk, and transmits the results to a CRT.
It is configured to control the controlled object by displaying it on a display consisting of the It has the advantages of excellent ease of use, operability, and man-machine functionality.

(Problems to be Solved by the Invention) However, the apparatus with the above configuration has the following problems.

Devices composed of general-purpose instruments have the drawbacks of lack of functional flexibility and weak man-machine functionality because microcomputer programs are created in machine language. In particular, with the spread and enhancement of communication functions, large amounts of data will be handled, and a simple numeric display will not be able to grasp sufficient information, making it difficult for people to understand. The weakness of the thin function has become obvious, and there is a demand for graphical display according to the purpose and use.

On the other hand, devices constructed from personal computers can eliminate the above-mentioned drawbacks, but they have CRTs and disks, are large and heavy, cannot be mounted on panels, and are expensive. There were drawbacks.

The present invention is an on-site type that solves the problems of the prior art, such as panel mounting, light weight, miniaturization, improvement of man-machine functions through graphical display, etc., and cost reduction. The present invention provides a thin operation display device.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a sheet-like keyboard for data input operation and a flat display capable of displaying figures on the front door of the case body, and furthermore, the present invention provides data storage. A first memory (hereinafter referred to as RAM) that can be read and written at any time for use in the computer, and a second read-only memory that stores a basic program having real-time multitasking functions.
(hereinafter referred to as ROM), a read-only third memory (hereinafter referred to as ROM) in which an application program (application program) created in a high-level language is stored, and processing is performed according to the contents of the RAM and ROM. It is equipped with a central processing unit (hereinafter referred to as CPU) that performs the processing.

(Function) According to the present invention, the sheet-like keyboard, flat display, and ROM enable the device to be smaller, lighter, and space-saving, contributing to easier integration into a panel and lower costs. By displaying data graphically, the display enables keyboard operations while looking at the figures, thereby improving man-machine functionality.

Therefore, the above problem can be solved.

(Embodiment) Figures 1 (1) and (2) are external views of an operation display device showing an embodiment of the present invention, where (1) is a front view, and (2) is a side view. FIG. 2 is a perspective view of FIG. 1.

As shown in FIGS. 1 and 2, this operation display device 1 includes a panel mounting-shaped case 10 that is mounted on a panel P using metal fittings or the like, and the case 10 has an opening 11
It consists of a case body 11 having a diameter of 1.a, and a door 12 attached to an opening 11a of the case body 11 so as to be openable and closable. The case 10 is, for example, DI which is a German standard.
N size length 288mm, width 288mm, depth 18
It has a thin shape of 5mm. The door 12 has a structure that can be replaced depending on the purpose, and a sheet-like keyboard 13 for data input operations and a flat display 14 capable of displaying graphics are provided on the front surface of the door 12. The sheet-like keyboard 13 has a numeric keypad 13a-1
, cursor keys 13a-, 2, clear key 13a-3, and entry key 13a-4.
and a function key 13b, and has a structure in which the surface is printed according to the purpose and can be replaced by making it into a cassette or a card. For example, as shown in FIG. 3, the cross-sectional structure of the keyboard 13 is such that a plurality of key switches 21 are mounted on a printed circuit board 20.
It has a structure in which a top sheet 22 is adhered on top of the top sheet 1. The top sheet 22 is printed according to the purpose.

The flat display 14 is composed of, for example, a 10-inch transmissive backlight type or reflective liquid crystal display panel (hereinafter referred to as an LCD panel), and its L
The CD panel has a structure that allows graphic display at 640 x 400 dots. The flat display 14 can also be constructed in other sizes or in the form of a pond, such as a plasma display.

As shown in FIG. 2, a holder 30 for storing boards is housed in the case body 11 of the case 10 almost parallel to the door 12, and the holder 30 is pivoted by a shaft 30a so as to be openable toward the opening 11a. has been done. Inside the holder 30 is a CPU.
Board 40, display board 50, and input/output capo
Dro 0 is accommodated, and among those boards 40 to 60,
For example, the input/output cup drawer 0 is constructed so that it can be inserted and removed from the opening 30b of the holder 30 and replaced depending on the application. These boards 40, 50, 60 are connected to each other by a motherboard 30c provided on the opposite side of the opening 30b of the holder 30, and are further connected to the keyboard 13 and display 14 on the door 12 side by cables (not shown). , are connected to a plurality of external lead-out terminals provided on the back surface of the case body 10 via the motherboard 30c. Note that, when the holder 30 is housed in the case body 11, the boards 40, 50, and 60 are arranged one on top of the other when viewed from the front, and have a thin structure.

FIG. 4 is a block diagram showing an example of the circuit configuration of FIG. 1.

The CPU board 40 stores a CPU 41 that performs processing according to memory contents and controls the entire device, a RAM 42 that stores data, etc., a ROM 43 that stores basic programs with real-time multitasking functions, and an application program. The RAM 42 and the calendar clock 4 are equipped with a ROM 44, a transmitting/receiving circuit 45, a calendar clock 46 compatible with year, month, day, hour, minute, second, and leap year.
6 is backed up by a battery (not shown).

The RAM 42, R, 0M43, 44, and transmitting/receiving circuit 45 are connected to the CPU 41, and their operations are controlled by the CPU 41. The basic program stored in the ROM 43 facilitates the design of a real-time monitor area, an integrated circuit programming area, an interrupt processing area, and an application program for managing and controlling the efficient operation of a group of tasks that can be processed in parallel. It is composed of subroutines and library group areas, etc.

As shown in FIG. 2, the ROM 44 is in the form of a socket, for example, and has a structure that can be replaced depending on the application. In addition,
This ROM 44 may be in a cassette format, a card format, or the like. The application program stored in the ROM 44 is programmed in a high-level language such as C language by a separate development support device, and is created in machine language by a compiler.

The application program is composed of a dedicated processing program group area that uses the basic program and includes a task group according to the purpose that matches the user specifications, and a table group area for connecting the basic program and the task group. The transmitter/receiver circuit 45 is a circuit that transmits and receives measurement data to and from an external device.
It consists of a port and one R8-232C port, and its communication function allows it to be connected to external devices such as controllers, input/output devices, management computers, printers, etc., and to build small-scale distributed systems. .

Display board 50 connected to CPU board 40
And display board 50 out of input/output capo drawer 0
is provided with a display drive port 851 and the like that drive the display 14 based on display data output from the CPU 41. The input/output coupler 0 has an analog/digital converter (hereinafter referred to as A/D) that converts multiple analog inputs AI such as temperature sensor output, current, and voltage into digital signals.
A converter), an input buffer for inputting a plurality of digital inputs DI, an output buffer for outputting a plurality of digital outputs Do, and the like are provided.

FIG. 5 shows an example of the configuration of a small-scale distributed system using the operation display device 1 configured as described above.

In this system, a plurality of operation display devices 1-1゜1-2
is connected to a management computer 71 via a signal transmission line 70. A controller 72-1.72-2, an input/output device 73-1.73-2, etc. are connected to each operation display device 1-1.1-2 through a communication function. Input/output device 7
3-1.73-2 has a function of sequentially capturing detection signals from a plurality of sensors attached to a controlled object.

The operation of monitoring and controlling the temperature in an electric furnace using such a small-scale distributed system will be explained.

For example, when the operation display device 1-1 in FIG. 5 monitors and controls the temperature inside the electric furnace, temperature sensors 74-1 to 74-N for monitoring are installed at multiple locations inside the electric furnace. The temperature sensors 74-1 to 74-N are connected to the input/output device 73-
Connect to 1. Further, the controller 72-1 has a function of adjusting the temperature of the heating device using an input signal 72a and an output signal 72b from a temperature sensor (not shown).

When the control temperature is set with the controller 72-1 and the heating device is driven, the inside of the electric furnace is heated. The temperature inside the electric furnace is detected by temperature sensors 74-1 to 74-N, and the detection signals are sequentially taken in by input/output device 73-1 and monitored by operation display device 1-1. For example, it may be displayed graphically on the flat display 14 of FIG. Controller 7
2-1 drives the heating device based on the sequentially captured detection signals to control the temperature in the electric furnace to a set temperature.

The detection signals sequentially taken in by the input/output device 73-1 are
It is transmitted to the operation display device 1-1, and transmitted to the transmitting/receiving circuit 4 in FIG.
Received at 5. The CPU 41 sends the detection signal received by the transmitter/receiver circuit 45 to RA according to the basic program and application program stored in the ROM 43.44.
M4"2. When displaying the stored data graphically on the display 14, for example, use the function key 13b of the keyboard 13 in FIG.
etc. to send the graphic display command to the CPU 4 in Figure 4.
Enter 1. Based on the graphic display command, the CPU 41 reads out the detection signal stored in the RAM 42, supplies it to the display drive circuit 51, and rewrites the contents of the display RAM of the display drive circuit 51. Then, the display drive circuit 51 displays the rewritten contents of the display RAM on the display 14 to graphically display the temperature state inside the electric furnace.

If you want to display the data stored in RAM42 as a trend,
Operate the keyboard 13 to issue a trend display command to the CPU 4.
Enter 1. Then, the CPU 41 reads out the data stored in the RAM 42 and displays it as a trend on the display 14 through the display drive circuit 51. Furthermore, if a printer is connected to the transmitting/receiving circuit 45 shown in FIG. 4 and a printing command is input by operating the keyboard 13, the CPU 41
RAM according to the program stored in OM43.44
Print out the data in 42 using a printer. You can also create daily reports etc. on a regular basis. Furthermore, the CPU 41
It is also possible to read the data in M42 and transmit it to the management computer 71 via the transmitting/receiving circuit 45.

When setting the temperature inside the electric furnace on the operation display device 1-1 side in FIG. 5, operate the setting keys 13a of the keyboard 13 in FIG. 1 to send a temperature setting command to the CPU in FIG.
41. The CPtJ41 decodes the temperature setting command and sends a corresponding setting signal through the transmitter/receiver circuit 45 to the fifth
It is transmitted to the controller 72-1 in the figure. Then, the controller 72-
1 drives and controls the heating device based on a setting signal. This allows remote control from the operation display device 1-1.

The temperature sensor 74 in Fig. 5 is connected to the input/output cupboard drawer 0 in Fig. 4.
By connecting 1 to 74-N, etc., the operation display device 1
It is also possible to perform temperature control etc. by -1 itself.

As described above, the operation display device of this embodiment has the following advantages.

(a) Adoption of a sheet-like keyboard 13 and a flat display 14, and storing basic programs for real-time multitasking in the ROM 43, as well as creating application programs in a high-level language and storing them in the ROM 4.
By converting the program to ROIVI by storing it in 3.
Since it is small, lightweight, and space-saving, it can be easily integrated into the panel P, and costs can be reduced, making it possible to realize a simple operator console.

Further, for example, a sheet-like keyboard 13 may be attached to the door of the case 10.
By attaching a flat display 14 and accommodating circuits with functions such as operation, display, communication, calculation, and input/output within the case body 11, it becomes even thinner and more convenient to use.

(b> Since graphics can be displayed on the display 14, it becomes possible to operate the keyboard 13 by looking at the graphics, thereby improving man-machine functionality.

(C) Since it has a sealed structure using a sheet-like keyboard 13 and a flat display 14, it has excellent environmental resistance against dust and the like.

(d) R storing application programs
Programs can be easily changed by replacing the OM44. Furthermore, by replacing only the sheet-like keyboard 13 or replacing the door 12, it is possible to adapt to different uses.

(e) Since it is equipped with a transmitter/receiver circuit 45, a small-scale distributed system can be constructed using a communication network.

(f> The holder 30 for board storage has an open part 11a
Since it has an openable structure, each board 4
0.50.60 installation, maintenance, and inspection become easier.

Note that the present invention is not limited to the illustrated embodiment, and various modifications are possible. Examples of such modifications include the following.

(i) CPU board 40, display board 50
The input/output cup drawer 0 may be housed in a holder having a shape and structure other than the holder 30 shown in FIG. 2, or may be housed directly within the case body 11 without using a holder. The input/output port number 0 may be omitted, or another circuit board may be added.

(ii) The case 10 may have a structure in which the case 10 is not mounted on a panel as in the above embodiment, but has feet on both sides of the back surface of the case body 11, and is mounted on a wall to fix the feet. In this case, the terminal portion may be provided on the front side of the case 10.

(Effects of the Invention) As explained above in detail, according to the present invention, by adopting a sheet-like keyboard and a flat display and by converting the program into a ROM, there is no need for a CRT, a disk, etc.
It is small, lightweight, and space-saving, which makes it easy to mount it on a panel and reduce costs, making it possible to realize a thin and simple operator console for field use.

When a sheet-like keyboard and flat display are attached to the case door, and circuits with functions such as operation, display, communication, calculation, and input/output are housed inside the case body,
It is thinner and more convenient to use. Its display allows for graphical display, improving man-machine functionality, and since it accommodates transmitting and receiving circuits, small-scale distributed systems can be constructed.

In addition, the door can be replaced, the sheet keyboard can be replaced,
If the third memory is made to have a replaceable structure, its operation and functions can be changed depending on the purpose, and thereby it can be used in various monitoring and control systems.

[Brief explanation of the drawing]

FIGS. 1 (1) and (2) show the external appearance of an operation display device according to an embodiment of the present invention, and FIG. 1 (1) is a front view, and FIG.
(2) is a side view, FIG. 2 is a perspective view of FIG. 1, FIG. 3 is an enlarged sectional view of the keyboard in FIG. 1, FIG. 4 is a block diagram showing an example of the circuit configuration in FIG. FIG. 5 is a diagram showing an example of the configuration of a small-scale distributed system using the device shown in FIG. 1. 1.1-1.1-2... Operation display device, 10.
...Case, 11 ...Case body, 11
a...opening, 12...door, 13...
...Keyboard, 14...Display,
40...CPU board, 41...CP
U, 42...RAM, 43.44...
ROM, 45... Transmission/reception circuit, 50...
-Display board, 51...display drive circuit, 60...input/output board, P...panel.

Claims (1)

[Claims] 1. A basic program having a sheet-like keyboard for data input operations, a flat display capable of displaying graphics, a first memory that can be read and written at any time for data storage, and a real-time multitasking function. a read-only second memory in which an application program written in a high-level language is stored; and a read-only third memory in which an application program written in a high-level language is stored; An operation display device equipped with a central processing unit that performs operations. 2. The operation display device according to claim 1, further comprising a case having a door attached to the front surface of the case body, and the sheet-like keyboard and flat display are provided on the door. 3. A case is provided with a door attached to the front of the case body, and the board on which the first, second, and third memories and central processing unit are mounted is accommodated in the case body approximately parallel to the door. The operation display device 4 according to claim 1 or 2, wherein the sheet-like keyboard is printed for each purpose and has a replaceable structure. 5. The operation display device according to claim 1, 2, 3, or 4, wherein the third memory has a structure that can be replaced depending on the purpose.