JPS61221795A - Portable type remote display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a portable display device, and more particularly to a warning device for warning that the built-in battery is exhausted.

(b) Prior art and its drawbacks In competitions such as volleyball, table tennis, and tennis, it is necessary to make the current score status clearly visible to the players and spectators, but humans cannot directly operate the display for this purpose. The system that changes the displayed content requires a staff member to change the displayed content for each point.
If there is poor communication between the referee and the official, there is a possibility that the official may make a mistake. Therefore, in order to solve this problem, a device can be considered in which a transmitter is placed at the referee's hand and the display content is remotely controlled by the transmitter. In such devices, in order to increase the contrast of the display and make it easier to see, the display body that represents the displayed content is composed of a rotatable magnetic plate with different patterns on the front and back sides, and this display body is rotated with an electromagnet. It is desirable to perform display using a combination of display elements that are controlled. In addition, it is desirable that the display device itself be portable so that it can support competitions in multiple locations.Since such portable display devices are movable and are often used outdoors, they are powered by built-in batteries. However, the consumption of power cannot be recognized from the outside, and there is a risk that the display may malfunction due to a lack of power, which could hinder the progress of the competition.

(C1 Purpose of the Invention In view of the above-mentioned drawbacks, it is an object of the present invention to provide a portable remote display device that displays a power shortage between games.

(d) Structure and effect of the invention This invention has a receiving section that receives a signal including display contents of the display section 9, and a display control section that causes the display section to display a display corresponding to the received contents of the receiving section, and is powered by a battery. A device for remote control comprising a portable remote display device to be driven, a setting input section for setting contents to be displayed on the remote display device, and a transmitting section for transmitting display contents inputted from the setting input section to the remote display device. In a remote display system consisting of a transmitter and a transmitter, when the remaining battery of the remote display device becomes low and the content to be displayed on the display becomes a specific content, the power supply is switched on instead of the content. The present invention is characterized by being equipped with a power supply warning display means for displaying a rare warning.

With the above configuration, the present invention displays the progress of the match such as the score during the match, and when the content to be displayed becomes a specific content (for example, when the match or set is finished), the remaining battery level is displayed. When it is determined that the remaining power is low, the display on the score display section can be cleared to indicate that the power has been consumed. Judges can take advantage of breaks in competition to display a warning before the battery is completely depleted.

Officials can deal with power consumption without interrupting the flow of the match, and since the competition display is used instead of other dedicated displays such as LEDs, the configuration is simplified and it can be used from a distance. There are also discernible benefits.

(e) Embodiment FIG. 2 is a front view of a portable remote display device which is an embodiment of the present invention. A display section 2.3 is provided on the front of the display device main body 1.
is installed. The display unit 2 has a serve right indicator 4.
a, 4b and score displays 5a, 5b are installed, and the display 3 has set indicators 5a, 5b and a game number display 7a.
, 7b are installed. The display section 2.3 is configured to be substantially black. On the front left side of the display device main body 1, the name of the competition note or team name during the game is displayed.

The figure shows the display of scores, etc. in the case of hardball tennis.
According to this display, Team A has acquired 1 set (set indicator 6a), and this set has acquired 3 games (
Game number display 7a) and the points for this game are 15
(score display 5a). In addition, Team B has acquired 1 set (set display 6b), and this set has 2
A game is acquired (game number display 7b), and the points of this game are 15 (score display 5b). Also, among the above-mentioned indicators, which team B has the right to serve in this game, are the score indicators 5a and 5b and the game number indicator? a, 7
b is a 7-segment Japanese character-shaped display, and serve right indicators 4a, 4b and set indicators 6a, 6b are indicators that display the serve right and the number of acquired sets by displaying dots or not. The display elements of each display have a configuration as shown in FIG. In the same figure, 4o is the rotating shaft 40
This is a display body composed of a square plate magnet rotatably fixed by a. As shown in FIG. 4(A), the front side has a diagonal white coated area on a black background, and the back side has no coated area and is entirely black as shown in FIG. 4(B). Therefore, the display portions 2 and 3 display white characters on a black background. Reference numeral 41 denotes an electromagnet having an iron core 41a and a coil 41b, and by reversing the polarity of the current flowing through the coil 41b, an S pole and an N pole can be formed at either the left or right end. That is, when changing the display aspect of the display element, if the display element 40 is magnetized in the same direction as the polarity, the display element 40 will be reversed and the surface (surface) having the white coating will be The display that was displaying the black side (back side) will now display the black side (back side), and the display body that was displaying the back side will now display the front side.In addition, in this embodiment, wasteful consumption of the battery is prevented. Therefore, the current flowing through the electromagnetic circuit 1 is pulsed. The time is approximately 0.5 seconds.

FIG. 7 is a front view of the remote control transmitter of the portable remote display device. This transmitter is equipped with a total of six keys A to F as operation keys, and each key has the following functions.

Point key 1): Press when the A side points.

Point B key 12: Press when the B side points.

Return point key 13: Press to display the previous display contents again.

Reset key 14: Press to display the current display contents again.

Serve key 15: Pressed when the right to serve is transferred.

All clear key 6: Press to clear the displayed contents.

For example, in hardball tennis, when the above embodiment is displaying the content shown in FIG. When 12 is pressed, this game ends, so the score displays 5a and 5b both display "OO", and the game number display 7 of the B team that has won the game.
b is added to display "3". When the game ends, such as when the B team scores a point, the key E15 is also operated at the same time to switch the serve right display.

FIG. 5 is a block diagram of a control section of a portable remote display device according to an embodiment of the present invention.

A signal received from the antenna 20 is demodulated into key manual data by a receiving circuit 21 and guided to a 4-bit CPO 22. When the CPU 22 confirms that the signal has been input, it outputs a power-on signal to the power supply control circuit 23. The power supply control circuit 23 includes the receiving circuit 21, the CPU 22 . The memory 24.25 is constantly supplied with power supply voltage v2, and the 8-bit CPU2
6. I10 port 27. The segment driver 28 is supplied with the power supply voltage (1) when it receives the power-on signal. That is, the CPU 26. The I10 boat 27 and segment driver 28 start operating when the receiving circuit 21 receives the signal. The battery 29 supplies power to the entire display device. In addition, memory 24.25
are each composed of ROM and RAM. CPU
22 sends a power-on signal to the power supply control circuit 23 when the receiving circuit 21 receives the signal as described above, and also passes data subsequently sent to the CPU 26. The CPO 26 starts operating after being supplied with the power supply voltage V1, processes the data received from the CPU 22, and sends a signal to the segment driver 28 for driving the electromagnet of the display element corresponding to the received data. The segment driver 28 controls on/off the electromagnets arranged behind the display body of each display element. After the data processing, the CPU 26 outputs a power off signal to the power supply control circuit 23. This signal causes the power supply voltage (1) to stop.

By configuring as described above, only the receiving circuit 21 and the 4-bit CPU 22 with low power consumption need to be constantly supplied with power; the 8-bit CPU 26 with relatively high power consumption; Since the segment driver 28 starts operating only when the receiving circuit 21 receives a signal, the battery 29
consumption can be minimized.

FIG. 6 is a partial configuration diagram of the RAM in the memory 25. Area M1 stores the current match progress. The memory items are the score of the A side (A: points), the number of games acquired (A: games), the number of sets acquired (A: sets), the score of the B side (B: points), the number of games acquired (B: games). ),
These are the number of acquired sets (B: cents) and the side (the side with the service right, S). Area M2 remembers the progress of the previous match. Its storage items are the same as those in area M1. As the match progresses and there is a change in the score, etc., the memory contents of area M1 are transferred to area M2 and stored as the previous match progress, and the match progress after the change is stored in area M1 as the current match progress. It is displayed on display 2.3.

FIG. 1 is a flowchart showing the operation of the portable remote display device.

When the receiving circuit 21 receives the signal and the CPU 22 determines that data has been sent from the transmitter, the CPU 26 then processes the data sent from the CPU 22 in step n.
1 (hereinafter, step ni is simply referred to as ni). n2 to n7 are steps for determining each data. If the received data is a reset key 14 manual signal, n2-r
Proceeding to r16, the contents of area M1 of memory 25 are displayed again. When the display contents are distorted due to impact, vibration, etc. on the display device, the correct display contents can be restored by inputting this input signal manually. Next, if it is a human input signal from the return point key 13, the process proceeds from n3 to n8. At n8, the contents of area M2 and area M1 of the memory 25 are exchanged, and then the process proceeds to n16, where the contents of area M1 are displayed. Therefore, the progress of the immediately preceding match will be displayed.If the human input signal of the return point key 13 is received again in the next data reception, the original display will be restored.

If the received data is a point mukey 1) human signal, n
Proceed to step 9. In n9, as the match progresses and the display contents such as scores change, area M, which was the progress of the match up to that point,
1 is transferred to area M2 as the previous match progress, and a predetermined score is added to the A: point area of area M1 (nlO). When the game ends, the set ends, or the match ends as a result of the addition, data to that effect is stored in the respective areas. (For example, in the case of hardball tennis, the game ends when one player scores four times, and the player who wins six games first wins the set.) If a player wins first, that player wins and the match ends.)
The display contents at the end of the set and the end of the match correspond to the specific display contents of the present invention.

If the received data is a point B key 12 human power signal, n
Proceed to il. In nil, as the game progresses and the displayed contents such as scores change, the data in area M1 that shows the progress of the match up to that point is transferred to area M2 as the progress of the previous match, and the data is set at the B2 point of area M1. Add the scores of (n 12). When the addition results in the end of the game, the end of the set, or the end of the match, the same processing as the above-mentioned nlo is performed.

If the received data is a serve key 15 human signal, n13
Then, the S data in area M1 is switched to the input side or B side. If the received data is all clear key data for 16 people, the contents of area M1 are transferred to area M2 in n14, then area M1 is reset in n15, and n16
Proceed to.

At n16, the segment driver 28 is driven according to the contents of the area M1 to display the progress of the match on the display 2.3.

This display is performed by driving the electromagnet 41 for 015 seconds. After the display, go to n17 to determine whether the displayed content is a specific content display (in the case of hardball tennis, the set is over or the match is over), and if the specific content is displayed, go to n18. The state of the battery 29 is then determined. When it is determined in n18 that the battery 29 is exhausted, the process proceeds to n19 to display on the display that the battery is low. The display is performed as shown in FIG. That is, the score display devices 5a and 5b are cleared, and "LO" (meaning battery low) is displayed on the score display device 5a. n17. If the judgment of n18 is No and n19
After completing the display, the operation ends and stops until the next data is received.

The time when the low battery level is displayed is when the battery level is sufficient for the display device to open for about one hour. Therefore, during that time (the time during which the display device can operate), even if a low battery level is displayed, when the next data is received, the display is performed according to that data. n1
B, n19 and the score display 5a correspond to the power warning display means of the present invention.

In this way, if the portable remote display device that is an embodiment of the present invention is used, it can be used anywhere because it operates on batteries, and when the battery is exhausted, a message to that effect will be displayed between matches, and the battery will be displayed. to do it in the available period,
Umpires, officials, and staff can deal with this without disrupting the flow of the game. In addition, since the warning display is displayed on the competition display, it is highly recognizable, and since there is no need to install a separate display device, there is an advantage that the configuration can be simplified.

Further, although this embodiment has been explained using hard tennis as an example, it can be used for almost any competition by storing the scoring pattern in the memory.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the operation of the control unit of a portable remote display device according to an embodiment of the present invention, FIG. 2 is a front view of the above embodiment, and FIG. 3 is a schematic structural diagram of a display element of the above embodiment. , FIGS. 4(A) and 4(B) are front and back views of the display body of the display element, FIG. 5 is a block diagram of the circuit configuration of the above embodiment, and FIG. 6 is a memory portion of the above embodiment. Diagram,
FIG. 7 is a front view of a transmitter for remotely controlling the above-mentioned embodiment, and FIG. 8 is a front view of the above-mentioned embodiment when a low battery level is displayed. 5a-Score display, 26-CPU, 29-Battery.

Claims (1)

[Claims] (1) A battery-powered cell phone that has a display section, a reception section that receives a signal including display content, and a display control section that causes the display section to display a display corresponding to the content received by the reception section. a remote display device, a setting input section for setting contents to be displayed on the remote display device, and a transmitting section for transmitting display contents input from the setting input section to the remote display device. In a remote display system composed of a device and A portable remote display device characterized by being equipped with a power supply warning display means for displaying a rare warning.