JPH04157520A - Home controller - Google Patents

Abstract

PURPOSE:To improve the operability of a write pen by plotting the locus of the write pen in a CRT display device when the top end of the write pen is within a prescribed distance from the display screen of the CRT display device and the position of the write pen is in a specific area on this display screen. CONSTITUTION:A write pen input control circuit is provided with a CRT display device 1, a CRT control circuit 2, a control circuit 3, a write pen 4, a position detecting counter 5, a flip-flop circuit 6, a one screen scanning time clock counter 7, a register 8, and a main memory 9. Also when the top end of the write pen 4 is within the prescribed distance from the display screen of the CRT display device and the position of the write pen 4 is in the specific area on the display screen of the CRT display device 1, in order to plot the locus of the write pen 4 in the CRT display device, a display control command is issued. Thus, in the case of using a television blackboard function, it is possible to obtain a home controller with the good operability of the write pen.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field This invention is useful for collecting information from various sensors, time information, family members' action plans, etc. for centralized control and security of various devices installed in the home. This invention relates to a home controller that displays various information.

(b) Conventional technology As a home controller, it displays various information such as information from various sensors, time information, and family members' action plans for centralized control and security of various devices installed in the home. It has been known for a long time that each device is controlled based on the following.

This type of home controller has various utility functions in addition to the above-mentioned basic functions, one of which is a so-called television blackboard function. This trace pattern is stored and displayed by tracing the display screen of a CRT display device with a light pen.

(c) Problems to be Solved by the Invention Although the television blackboard function described above is a convenient function, there are restrictions on how to operate the light pen, and the light pen is not easy to use.

For example, a device has been developed that has a switch that is activated when the light pen is pressed against the display screen of a CRT display device, and the light pen can be used manually only when this switch is activated. In such a device, the light pen must be moved while being pressed against the display screen of the CRT display device, and there is a problem in that it is not easy to operate.

In order to improve operability, the light pen can be used only at the input start point and input end point by switching between input mode and non-human power mode each time the above switch is activated.
Devices that can be pressed against the display screen of a display device have been developed.

However, such devices are suitable for drawing continuous images, but when drawing an image that has parts that are interrupted, such as letters, a light pen is inserted at each part of the image on the CRT display. There is a problem in that it requires pressure contact with the screen, resulting in poor operability.

A first home controller according to the present invention aims to provide a home controller with good operability of a light pen when using a television blackboard function.

On the other hand, with a conventional home controller that uses a commercially available TV as a CRT display device, when selecting a function by pressing a light pen against the function selection mark displayed on the CRT display device, the brightness of the CRT display device is Depending on the adjustment of images, color density, etc., there are problems such as the screen being difficult to see, and the response slowing due to deterioration of sensitivity when using a light pen manually.

The second home controller according to the present invention detects that when the brightness or the like of the CRT display device is not properly adjusted when a function is selected by pressing a light pen against the function selection mark displayed on the CRT display device. An object of the present invention is to provide a home controller that can detect this and notify an operator.

(d) Means for Solving the Problems A first home controller according to the present invention includes a storage means for storing various information, a CRT display device for displaying various information, and a CRT display device for converting various information into display signals and for converting various information into predetermined signals on the CRT display device. In a home controller equipped with a light pen having a display control means for displaying a display at a position and a light receiving circuit for detecting light from a CRT display device,
A position pressure detection means for detecting that the display screen of the T display device is within a specific range, and measures the light detection time by the light receiving circuit of the light pen while the scanning line of the CRT display device scans one screen. a light detection time clock means, a means for determining whether or not the tip of the light pen is within a predetermined distance from the display screen of the CRT display device based on the time measured by the clock device; A drawing command that outputs a command to the display control means to draw the trajectory of the light pen on the CRT display device when the light pen is within a predetermined distance and the position of the light pen is within a specific range on the display screen of the CRT display device. It is characterized by having the means.

A second home controller according to the present invention includes a storage means for storing various information, a CRT display device for displaying various information, a display control means for converting the various information into a display signal and displaying it at a predetermined position on the CRT display device, and a CRT display device. In a home controller equipped with a light pen that has a light receiving circuit that detects light from the device, the position of the light pen or CR
A position detection means for detecting that the light pen is within the function selection mark area displayed on the display device, the position of the light pen or the CRT.
a light detection time clock means for measuring light detection time by a light receiving circuit of the light pen while scanning a scanning line or one screen of a CRT display device when the light pen is within a function selection mark area displayed on the display device; A means for determining whether the amount of light irradiation from the function selection mark where the light pen is located is within a certain range centered on a predetermined standard value based on the time measured by the timer; A means for executing processing according to a function selection mark where a light pen is located when the amount of light irradiation is within a certain range centered on the standard value, and a means for executing processing according to the function selection mark where the light pen is located, and when the amount of light irradiation is not within a certain range centered on the standard value, The present invention is characterized by comprising means for displaying on the CRT display a screen indicating that the CRT display should be adjusted.

(e) Operation In the first home controller according to the present invention, the CRT
While one scanning line or one screen of the display device is scanned, the light detection time measuring means measures the light detection time by the light receiving circuit of the light pen.

Based on the time measured by the light detection time measuring means, it is determined whether the tip of the light pen is within a predetermined distance from the display screen of the CRT display device.

Then, when the tip of the light pen is within a predetermined distance from the display screen of the CRT display device and the position of the light pen is within a specific range on the display screen of the CRT display device, the trajectory of the light pen is drawn on the CRT display device. In order to do so, a command is output to the display control means.

In the second home controller according to the present invention, when the position of the light pen is within the function selection mark area displayed on the CRT display device, the light detection time measuring means
While the scanning line of the CRT display device scans one screen, the light detection time by the light receiving circuit of the light pen is measured.

Based on the time measured by the light detection time measuring means, it is determined whether the amount of light irradiation from the function selection mark where the light pen is located is within a certain range centered on a predetermined standard value.

Then, when the amount of light irradiation is within a certain range centered around the standard value, a process corresponding to the function selection mark located on the light pen is executed.

On the other hand, if the amount of light irradiation is not within a certain range centered around the standard value, a screen indicating that the CRT display should be adjusted is displayed on the CRT display.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 4 show a first embodiment of the invention.

FIG. 1 shows the light pen input control circuit of the home controller.

In FIG. 1, numeral 3 denotes a control circuit that controls the entire light pen input control circuit. 1 is a CRT display device, 2 is a CR
This is a CRT control circuit including a synchronizing signal generation circuit for the T display device 1 and a memory for storing display data.

4 is a light pen having a light receiving circuit for detecting light from the CRT display device 1; Reference numeral 5 denotes a position detection counter for detecting the operating position of the light pen 4.

Reference numeral 6 denotes a flip-flop circuit that is set by a photodetection signal from the light pen 4 and reset by a reset signal from the control circuit 3.

7 is the time required to scan one scanning line or one screen of the CRT display device 1 (one screen scanning time), for example, 1/6
This counter measures 0 [seconds] every time a scan is started, and goes into a count-up state when the one-screen scanning time elapses.

8 is a register for storing the number of times the flip-flop 6 has been set. 9 is a main memory that stores control programs and necessary data.

FIG. 2 shows the relationship between the amount of light received by the light receiving circuit of the light pen 4 and the distance between the tip of the light pen 4 and the display screen of the CRT display device 1.

As can be seen from FIG. 2, as the light pen 4 is moved away from the display screen of the CRT display device 1, the amount of light received by the light receiving circuit of the light pen 4 increases, and when the light pen 4 moves away within a predetermined distance, the amount of light received decreases. It rapidly decreases to zero.

FIG. 3 shows an example of a television blackboard displayed on the CRT display device 1. As shown in FIG. Symbol A indicates a drawing area.

The drawing area A and the surrounding area have different colors so that the scanner can recognize the drawing area A.

FIG. 4 shows the light pen input control processing procedure by the control circuit 3.

First, the one-screen scanning time counter 7 is reset (step S1), and the register 8 is cleared (step S2). When the one-screen scanning time counter 7 is reset, it starts counting the one-screen scanning time.

Then, it is determined whether the one-screen scanning time counter 7 is in a count-up state (step S3). If the one-screen scanning time counter 7 is not in the count-up state, it is determined whether the flip-flop circuit 6 is in the set state (step S4).

If the flip-flop circuit 6 is in the reset state, the process returns to step S3. If the flip-flop circuit 6 is in the set state, the flip-flop circuit 6 is reset (step S5), and then the content Tx of the register 8 is incremented (step S6). Then, the process returns to step S3.

Therefore, the processes of steps 83 to S6 are repeated until the one-screen scanning time elapses, and a value proportional to the time during which the light pen 4 is detecting light is stored in the register 8 for each one-screen scanning time. be done. When the one-screen scanning time elapses, the one-screen scanning time counter 7 enters a count-up state, so the answer is YES in step S3, and the process moves to step S7.

In step S7, it is determined whether the content TX of the register 8, that is, the value Tx proportional to the time during which the light pen 4 detects light in units of one screen scanning time, is within a predetermined range. For example, when the light pen 4 is in contact with the display screen of the CRT display device 1, this predetermined range is defined as 8, which corresponds to the time during which the light pen 4 detects light per screen scanning time. , 7 to 9.

That is, in step S7, it is determined whether Tx is in the range of 7≦Tx≦9.

A value Tx proportional to the time the light pen 4 is detecting light
is within the predetermined range, in the above one screen scanning time,
It is determined that the light pen 4 is within a predetermined distance from the display screen of the CRT display device, and the process moves to step S8.

In step S8, it is determined whether the operation position of the light pen 4 is within the drawing area A or not based on the contents of 5 in the position detection counter. If the operating position of the light pen 4 is within the drawing area A, the operating position of the light pen 4 is within the CRT.
It is plotted on the display screen of the display device 1. After this, the process returns to step s1.

If it is determined in step S7 that the value Tx proportional to the time during which the light pen 4 is detecting light is not within the predetermined range, or in step S8, the light pen 4
If it is determined that the operation position is within drawing area A,
The process returns to step S1 without plotting the operating position of the light pen 4.

Therefore, if the light pen 4 is more than a predetermined distance away from the display screen of the CRT display device, the light pen 4
input is invalidated.

5 to 8 show a second embodiment of the invention.

FIG. 5 shows the light pen input control circuit of the home controller.

In FIG. 5, the same parts as in FIG. 1 are given the same reference numerals and their explanations will be omitted.

This light pen manual control circuit is provided with a read-only memory 10 in which a value corresponding to a standard value of the light irradiation amount from the function selection mark is stored.

FIG. 6 shows a display example of the CRT display device 1. In FIG.

There is a function screen display section B in the center of the display screen, and below it a plurality of function selection marks 11 to 16 for selecting various function screens such as calendar, memo, timer, etc. are displayed.

When the operator touches a desired function selection mark 11 to 16 with the light pen 4, the touched function selection mark 11 to
The function screen corresponding to No. 16 is displayed on the function screen display section B.

FIG. 7 shows the light pen manual control processing procedure by the control circuit 3.

First, based on the contents of the position detection counter 5, the operating position of the light pen 4 or any of the function selection marks 11 to 1 is selected.
6 is within the display range (step 5).
11). If the operating position of the light pen 4 is within the display range of any of the function selection marks 1] to 16, the counter 7 for measuring one screen scanning time is reset (step 512).
), register 8 is cleared (step 813). When the one-screen scanning time counter 7 is reset, it starts counting the one-screen scanning time.

Then, it is determined whether or not the one-screen scanning time counter 7 is in a count-up state (step 514). If the one-screen scanning time counter 7 is not in the count-up state, it is determined whether the flip-flop circuit 6 is in the set state (step 515).

If the flip-flop circuit 6 is in the reset state, the process returns to step S14. If the flip-flop circuit 6 is in the set state, after the flip-flop circuit 6 is reset (step 516), the content Tx of the register 8 is incremented again (step 517). and,
Return to step S14.

Therefore, the processes of steps 514 to S17 are repeated until the one-screen scanning time elapses, and the value proportional to the time during which the light pen 4 is detecting light, in other words, the function is selected in units of one-screen scanning time. A value proportional to the amount of light irradiated from the marks 11 to 16 is stored in the register 8.

When the one-screen scanning time elapses, the one-screen scanning time counter 7 enters a count-up state, so step S
14 becomes YES, and the process moves to step S18.

In step 318, the content of the register 8, Tx, that is, the difference α between the value Tx, which is proportional to the time the light pen 4 is detecting light, and the reference value To, is calculated in units of one screen scanning time. Then, it is determined whether the absolute value of the difference α is less than or equal to a predetermined value β (step 519).

The reference value To is a value corresponding to the standard value of the amount of light irradiation from the function selection marks 11 to 16. Therefore, step S
At step 19, it is determined whether the amount of light irradiation from the actual function selection marks 11 to 16 is within a certain range centered on the standard value of the amount of light irradiation.

A value Tx proportional to the time the light pen 4 is detecting light
If the absolute value of the difference α between and the reference value To is less than or equal to the predetermined value β, it is determined that the actual amount of light irradiation from the function selection marks 11 to 16 is within a certain range around the standard value of the amount of light irradiation. ,
Function selection marks 11 to 16 where light pen 4 is located
A function selection process corresponding to is executed (step 520
). and. This process ends.

Value Tx proportional to the time that light pen 4 detects light
If the absolute value of the difference a between and the reference value To exceeds the predetermined field β, it is determined that the actual amount of light irradiation from the function selection marks 11 to 16 is not within a certain range centered on the standard value of the amount of light irradiation. Then, for example, a CRT adjustment request screen as shown in FIG. 8 is displayed on display section B (step S21.), and this process ends.

Therefore, when the amount of light irradiation from the actual function selection marks 11 to 16 is not within a certain range centered on the standard value of the amount of light irradiation, a message to that effect is displayed, and the operator can check the CRT display based on this display. 1 can be adjusted.

(g) Effects of the Invention According to the first home controller according to the present invention, a home controller with good operability of a light pen can be obtained when a so-called TV blackboard function is used.

According to the second home controller according to the present invention, C
When selecting a function by pressing a light pen against the function selection mark displayed on the RT display, if the brightness of the CRT display is incorrectly adjusted, this will be detected and the operator will be notified. I can do it.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a block diagram showing the light pen input control circuit of the home controller, and FIG. 2 is a display of the tip of the light pen 4 and the CRT display wtl. A graph showing the relationship between the amount of light received by the light receiving circuit of the light pen 4 and the distance from the screen; FIG. 3 is a schematic diagram showing a display example of a television blackboard displayed on the CRT display device 1;
FIG. 4 is a flowchart showing a light pen input control processing procedure by the control circuit 3, FIGS. 5 to 8 show a second embodiment of the present invention, and FIG. 5 shows a light pen manual control circuit of a home controller. The block diagram shown in Figure 6 is a CRT.
A schematic diagram showing a display example of the display device 1, FIG. 7 is a control circuit 3
FIG. 8 is a schematic diagram showing an example of a CRT adjustment request screen. 1...CRT display device, 2...CRT control circuit, 3...
Control circuit, 4...Light pen, 5...Counter for position detection, 6...Flip-flop circuit, 7...Counter for measuring one screen scanning time, 8...Register, 9...Main memory, 10...Read-only memory. Figure 2: Distance between display screen and light pen Figure 4 Figure 5 Figure 6 Figure 8 Figure 7

Claims (2)

[Claims] (1) Storage means for storing various information, CRT display device for displaying various information, CRT display device for converting various information into display signals
Display control means for displaying at a predetermined position on a display device, and C
In a home controller equipped with a light pen having a light receiving circuit for detecting light from an RT display device, a position detection means for detecting that the position of the light pen is within a specific range on the display screen of the CRT display device; A light detection time clock means for measuring the light detection time by the light receiving circuit of the light pen while the scanning line of the device scans one screen; means for determining whether or not the tip of the light pen is within a predetermined distance from the display screen of the CRT display device; A home controller comprising: drawing command means for outputting a command to a display control means in order to draw a trajectory of a light pen on a CRT display device at a certain time. (2) A storage means for storing various information, a CRT display device for displaying various information, and a CRT display device for converting various information into display signals.
Display control means for displaying at a predetermined position on a display device, and C
In a home controller equipped with a light pen having a light receiving circuit for detecting light from an RT display device, a position detection means for detecting that the position of the light pen is within a function selection mark area displayed on the CRT display device; When the pen position is within the function selection mark area displayed on the CRT display device, the light is used to measure the light detection time by the light receiving circuit of the light pen while the scanning line of the CRT display device scans one screen. detection time clocking means; means for determining whether the amount of light irradiation from the function selection mark where the light pen is located is within a certain range centered on a predetermined standard value, based on the time measured by the clocking means; , means for executing processing according to the function selection mark where the light pen is located when the amount of light irradiation is within a certain range centered on the standard value, and when the amount of light irradiation is within a certain range centered on the standard value 1. A home controller comprising: means for displaying a screen on a CRT display device indicating that the CRT display device should be adjusted when the CRT display device is not adjusted.