JPH08154284A - Remote control system and remote commander - Google Patents

Abstract

PURPOSE: To reduce power consumption for light emission and to extend the service life by allowing a remote commander to receive a reference output from an output means and varying an output intensity of a command signal depending on the intensity of a detected signal. CONSTITUTION: A control section 5 reads an up-command or a down-command in a direction of X or Y from a ROM 5b or a RAM 5c in response to received voltages EX and EY. The voltages EX and EY are received from A/D converters 4X, 4Y and are mobile motion information in the directions of X, Y based on an angle of moving the remote commander 10 in the directions of X, Y. The command is sent to a transmission section 8. Then the voltages EX and EY are in proportion to angular velocities ωX, ωY applied to vibration gyroscopes IX, IY and the user sends a command code in response to the operation of the commander 10. Then the voltages EX and EY are made variable at an angular velocity when the commander 10 is shaken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system for supplying remote control by supplying operation information to a predetermined device, and a remote commander used for the remote control system.

[0002]

2. Description of the Related Art As a remote control system for remotely inputting operation information, for example, a system using a remote commander for audio / visual equipment or a computer is generally known. As a remote commander, a method of transmitting a command signal by an infrared signal is widely used. In the case of the infrared system, the remote commander often employs a system in which a command signal generated in response to an operation is modulated at a predetermined carrier frequency and the light emitting diode is turned on / off by the modulated signal.

[0003]

By the way, since the remote commander is usually driven by a battery, it is required to reduce power consumption in order to realize a long life of the battery. In the infrared remote commander, most of the current is consumed by the infrared light emitting element, so reducing the power consumed by the infrared light emitting element leads to a significant reduction in power consumption as a remote commander. .

Here, the remote commander has a certain level of light emission intensity so that the operation information (command signal) can reach the device side favorably even if the remote commander is operated away from the corresponding device to some extent. Must be maintained. For example, in the case of a remote control system used indoors, the emission intensity is set so that a command signal by infrared rays can be well received by those devices even from a position about 10 m away from audio / visual devices. . However, the emission intensity set in this way is
When the remote commander is used at a short distance, it is unnecessarily large, that is, there is a problem that wasteful power consumption is performed.

There is also a type of remote control system in which a command signal is constantly transmitted from the remote commander to the corresponding device. For example, when using a remote control system as a pointing device, a system in which position displacement information is constantly output from a remote commander, and the corresponding device moves the pointer on the image on the display screen or the like according to the position displacement information. There is. In such a remote control system, there is a problem that the power consumption is increased due to the constant light emitting operation of the remote commander and the battery life is short.

These problems also occur in a remote control system that is not an infrared system, such as a remote control system that transmits a command signal by radio waves, laser, ultrasonic waves, or the like.

[0007]

The present invention has been made in view of the above problems, and an object thereof is to significantly reduce the power consumption of the remote commander so that it can be operated for a long time by being driven by a battery. And

Therefore, a remote commander equipped with a transmitting means for outputting a command signal in response to an operation, and a control device capable of receiving the command signal from the remote commander and executing an operation in accordance with the command signal. In the configured remote control system, the control device and the remote commander are configured as follows. The control device is provided with reference output means for performing a signal output operation with a predetermined output intensity. The remote commander receives the output signal from the reference output means, detects the signal strength of the signal strength detection means, and the command signal of the transmission means according to the signal strength detected by the signal strength detection means. A transmission strength control means capable of varying the output strength is provided.

Further, a remote commander having a transmitting means for outputting a command signal as an infrared signal in response to an operation and an infrared signal from the remote commander are received to take in the command signal, and an operation according to the command signal is executed. In a remote control system composed of a control device that can be operated, the control device and the remote commander are configured as follows. First, the control device is provided with a reference light emitting means for performing a light emission signal output operation at a predetermined light emission intensity. The remote commander includes a light intensity detecting means capable of receiving a light emission signal from the reference light emitting means of the control device and detecting the light intensity thereof, and a transmitting means depending on the light intensity detected by the light intensity detecting means. And a transmission emission intensity control means capable of varying the emission intensity of the infrared signal.

Here, the transmission emission intensity control means of the remote commander is configured to vary the emission intensity of the infrared signal by varying the emission time of the infrared light emitting element in the transmission means.

Alternatively, the transmission emission intensity control means is configured to vary the emission intensity of the infrared signal by varying the amount of current supplied to the infrared light emitting element in the transmission means.

Next, the remote commander is constructed as follows. That is, a command signal generating means for outputting a command signal at a predetermined cycle according to an operation, a transmitting means for transmitting and outputting a command signal supplied from the command signal generating means, and a command signal output in the transmitting means according to an operation state. An output time variable control means capable of variably controlling the time is provided.

The infrared type remote commander is constructed as follows. That is, a command signal generating means for outputting a command signal in a predetermined cycle according to an operation,
The transmitting means outputs the command signal supplied from the command signal generating means as an infrared signal, and the light emission time variable control means capable of variably controlling the infrared light emitting time in the transmitting means according to the operation state.

Here, the light emission time variable control means makes it possible to variably control the infrared light emission time in the transmission means by changing the command signal output period from the command signal generation means in accordance with the operation.

[0015]

In the remote control system, if the light emission signal (output signal) from the reference light emission means (reference output means) on the control device side is received and the light intensity (signal intensity) is detected, each time point Thus, it is possible to determine the light emission intensity required to properly transmit the infrared signal from the remote commander to the control device. Therefore, if the light emission intensity of the infrared signal output is changed according to the detected light intensity, the infrared command signal can always be output with the optimum light emission intensity, and wasteful power consumption can be eliminated. Further, in a remote commander that always outputs an infrared command signal, wasteful power consumption can be eliminated by changing the infrared light emission time according to the operation state. For example, if there is no significant change in the content of the transmission command, the number of transmissions may be reduced.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the remote control system of the present invention and the remote commander used therein will be described below with reference to FIGS. In this embodiment, the remote control system comprises a remote commander and a control device. As the remote commander, an example in which an angular velocity sensor is used to output position displacement information is given.

First, the remote commander will be described. FIG. 2 shows an example of the appearance of the remote commander. The remote commander 10 has a vibration gyro 1x as an angular velocity sensor for detecting an angular velocity ω _x when the remote commander 10 moves in the _x- axis direction, and a remote in the y-axis direction. A vibration gyro 1y is equipped as an angular velocity sensor that detects the angular velocity ω _y when the commander 10 moves. With this remote commander 10, the user holds the remote commander 10 in his hand and shakes it vertically and horizontally,
Vibration gyro 1x, 1y when moving in the space x
The angular velocities in the directions y and y are detected, and x, y are detected accordingly.
The displacement information in the direction is output as a command code to a predetermined device. Reference numeral 7 denotes an enter operation key. When the user presses the enter operation key 7, the remote commander 10 outputs a command code as enter information (confirmation information).

When an angular velocity sensor based on the vibration gyro 1 (1x, 1y) is provided, the remote commander 10 is shown in FIG.
With this configuration, the movement information is detected. The vibrating gyro has a characteristic that when a rotating angular velocity is applied to a vibrating object, a Coriolis force is generated in a direction perpendicular to the vibration, and the Coriolis force F is expressed as follows. F = 2mvω (m: mass, v: velocity, ω: angular velocity) Therefore, the angular velocity ω
Is proportional to the Coriolis force F, and the rotational angular velocity can be detected by detecting the Coriolis force F.

A driving piezoelectric ceramic 1a and a detecting piezoelectric ceramic 1b are attached to the vibrating gyro 1 (1x, 1y), and an alternating signal which is an oscillation output of the oscillator 2 is applied to the driving piezoelectric ceramic 1a. Is done like this. In FIG. 3, when the vibrating gyro 1 is rotated in the direction of Ω ₀ , the Coriolis force F is applied to the detecting piezoelectric ceramic 1b, and the Coriolis force F is applied.
A voltage is generated according to. The minute voltage obtained from the detecting piezoelectric ceramic 1b is amplified by the amplifying unit 3 and is amplified by the A / D converter 4
To be digital data (voltage value E).

A configuration of a remote commander 10 using such vibrating gyros 1x and 1y is shown in FIG. The output voltage from the vibration gyro 1x is supplied to the amplification unit 3x, amplified, and further output as the digitized voltage value Ex by the A / D converter 4x. Similarly, vibrating gyro 1y
The output voltage from is supplied to and amplified by the amplifier 3y, and the voltage amplified by the amplifier 3y is output as the digitized voltage value Ey by the A / D converter 4y.

Reference numeral 5 is a CPU 5a, a ROM 5b, and a RAM 5c.
It shows a control unit formed by a microcomputer having a ROM, and a command signal to be transmitted is stored in the ROM 5b or the RAM 5c. 5d shows a clock oscillator. The control unit 5 is supplied with the voltage value Ex from the A / D converter 4x and the voltage value Ey from the A / D converter 4y. The voltage values Ex and Ey are the same as those of the remote commander 10.
Direction, the value corresponding to the angular velocity when shaken in the y direction,
That is, it becomes the movement information in the x and y directions.

The control unit 5 reads the x-direction up command or the x-direction down command from the ROM 5b or the RAM 5c in accordance with the input voltage value Ex, and also the voltage value Ey.
According to the above, the y-direction up command or the y-direction down command is read from the ROM 5b or the RAM 5c, and this is supplied to the transmitting unit 8 as a command code. The angular velocities ω _x and ω _{y applied} to the vibration gyros 1x and 1y, and the control unit 5
The voltages Ex and Ey input to the are proportional to each other as shown in FIGS. 4 (a) and 4 (b), and the control unit 5 controls the x-axis performed by the user on the remote commander 10 according to the input voltage value Ex. It is possible to output a command code corresponding to an operation in a direction (for example, an operation of swinging left and right). For example, Ex =
When it is 2.5V, it means that it is in a stopped state in the left-right direction. When Ex> 2.5V, a position displacement command to the left is output, and when Ex <2.5V, a position displacement command to the right is output. .

Similarly, it is possible to output a command code in accordance with an operation in the y-axis direction (eg, an up / down operation) performed by the user on the remote commander 10 according to the input voltage value Ey. For example, when Ey = 2.5V, it means that it is in a stopped state in the vertical direction.
If y> 2.5 V, position displacement command in the upward direction, Ey
If it is <2.5 V, the downward position displacement command is output.

That is, the voltage Ex is increased by the angular velocity when the remote commander 10 is swung leftward, and the voltage Ex is lowered by the angular velocity when swung rightward.
The vibration gyro 1x is arranged in the remote commander 10, and the voltage Ey is increased by the angular velocity when the remote commander 10 is swung upward, and the voltage Ey is decreased by the angular velocity when the remote commander 10 is swung downward. 1x is arranged.

The command code generated from the control unit 5 according to the voltages Ex and Ey is supplied to the transmission unit 6 and is output to a predetermined device (control device described later) as an infrared signal. That is, the control unit 5 modulates the command code with a carrier of, for example, about 40 KHz, and applies the current of the modulation signal to the base of the transistor Q ₁ via the resistor R ₁ to execute the switching operation of the transistor Q ₁ . . Along with the switching operation of the transistor Q ₁ , a current flows through the light emitting diode D ₁ through the resistor R ₂ during its conduction period, and an infrared signal is output from the light emitting diode D ₁ .

Further, reference numeral 7 is an enter operation key provided as shown in FIG. 2, but operation information of the enter operation key 7 is also supplied to the control section 5. Then, the control unit 5 sends an enter command to the ROM 5 according to the operation of the enter operation key 7.
The data is read from the RAM b or the RAM 5c, modulated, supplied to the transmitter 8 and output as an infrared signal.

Reference numeral 11 is a receiving section composed of a photodiode D ₂ and a resistor R ₃ , which is constructed so as to receive an infrared signal. The infrared signal received by the receiver 11 is amplified by the amplifier 12, then digitized by the A / D converter 13 and supplied to the controller 5. That is, the control unit 5 is configured to be able to measure the intensity of the infrared signal received by the receiving unit 11.

From the remote commander 10 as described above, an enter command, an x direction movement command (up direction / down direction), a y direction movement command (up direction / up direction /
Although only three types of command codes (down direction) are output, in this case, for example, the control device 20 having the configuration as shown in FIG. 5 is provided on the receiving device side of the command code integrally with the device to be operated or separately. Thus, various kinds of operations can be executed.

In FIG. 5, reference numeral 21 is a remote commander 1.
A receiving unit that receives a command code transmitted by infrared rays from 0, converts it into an electric signal and demodulates it, and 22 is a control unit by a microcomputer that performs control based on the command code received and demodulated by the receiving unit 21, CPU22
a, a ROM 22b, and a RAM 22c. Also, 23
Is a graphic controller that supplies a predetermined character to a display unit (for example, a CRT) 24 that is integrally formed with the device or is separately connected to the device under the control of the control unit 22 and performs a character display operation. . 25
Is a clock oscillator.

The control unit 22 is the graphic controller 2
3, the VCR as shown in FIG.
The operation contents and the cursor K corresponding to the CD player, the television receiver and the like are displayed. And
The control unit 22 moves the cursor K on the CRT screen in accordance with the x-direction and y-direction command codes supplied from the remote commander 10.

Then, the user selects the remote commander 1
For example, when the cursor K is moved to a position on the screen corresponding to the playback button of the VTR as shown in the drawing while swinging 0 vertically and horizontally, the enter operation key 7 is pressed, and the CPU 22a
Confirms the input of the enter command, the CPU
The command code 22a reads the command code indicating "VTR: Play" from the ROM 22b or the RAM 22c, supplies the command code to the transmitter 26, and transmits it to a VTR device (not shown) as a modulation signal by an infrared signal, for example. Alternatively, when the control unit corresponding to the input command of FIG. 5 is provided in the VTR device, the command code of “VTR: play” is supplied to the terminal 27.
To a predetermined operation control unit to execute a reproducing operation.

That is, the control unit 22 holds the coordinate data corresponding to the display areas of various operation contents on the display screen of the CRT 24 and stores the actual command code. Accordingly cursor K
When is moved, the coordinate position currently designated by the cursor K is grasped. Then, it is determined that the designation of the coordinate position is confirmed by the input of the enter command, the command code held as the command code corresponding to the coordinate position is read, and is output to the transmission unit 26 or the terminal 27. It is something that is done.

Therefore, the user can operate various devices by observing the screen of the CRT 24 by moving the remote commander up and down, left and right to move the cursor K and pressing the enter key 7 at a required position. The key operation for 10 becomes very simple. Further, since the movement of the cursor K is linked to the movement of the user's hand, the operation means is remarkably excellent as a so-called human interface.

Further, the control device 20 is provided with a reference light emitting section 28. The control unit 28 applies a light emission control current to the base of the transistor Q ₃ via the resistor R ₄ for a predetermined period from a predetermined time point. A switching operation of the transistor Q ₃ is performed by the light emission control current, and infrared rays are output from the light emitting diode D ₃ via the resistor R ₅ during the conduction period. The intensity of the infrared output is maintained at a predetermined value, that is, the reference light emitting unit 28 outputs an infrared signal (reference light emitting signal) of a reference level during a predetermined period set by the control unit 22. The receiving unit 11 of the remote commander 10 described above receives the infrared signal from the reference light emitting unit 28.

The operation of the remote control system of this embodiment will be described below. The remote commander 10 outputs an enter command and x, y displacement information, but these command codes are modulated with a 40 KHz carrier and have a constant cycle as shown as an infrared command code CC in FIG. 9 (a). It will be output every time. The infrared command code CC is taken in by the receiving unit 21 of the control device 20, waveform-shaped as shown in FIG. 9, and supplied to the control unit 22. The control unit 22 analyzes the supplied command code to determine the content of the command, and performs necessary processing such as moving the cursor K on the CRT 24. Further, after receiving the command code, the control unit 22 emits the reference light emission from the reference light emission unit 28 for a predetermined period at a predetermined timing which is an idle period within the command code transmission cycle, as shown in FIG. 9C. The signal RC is output. As shown in FIG. 9B, the reference light emission signal RC from the reference light emission unit 28 is received by the reception unit 2.
Although it is also received by 1, the control unit 22 can cancel it as a command code.

On the other hand, the receiving unit 1 on the remote commander 10 side
In 1, the infrared command signal CC output from the transmitter 6 within one transmission cycle and the reference light emission signal RC output from the reference light emitter 28 of the control device 20 thereafter.
Will be received. Here, the control unit 5 counts the timer within one cycle of command code transmission, and at the timing when the reference light emission signal RC is output from the reference light emission unit 28, the level of the reference light emission signal RC is A /
It will be taken in through the D converter 13. Then, the control unit 5 varies the pulse duty of the modulation command code supplied to the transmission unit 6 according to the level (light intensity) of the captured reference light emission signal RC.

As the simplest variable control example, when the light intensity of the reference light emission signal RC is smaller than a certain set threshold value, a modulation command code pulse as shown in FIG. As in 10 (b), the pulse duty is 50%. Further, when the light intensity of the reference light emission signal RC is larger than the threshold value, FIG.
A modulation command code pulse as shown in FIG.
As shown in (c), the pulse duty is reduced. That is, depending on the light intensity of the reference light emission signal RC from the control device 20 side, the control unit 5 is required according to the optical transmission conditions such as the distance between the remote commander 10 and the control device 20 at that time and the optical axis angle. It is possible to know various signal intensities, and to change the infrared output intensity from the transmission unit 6 according to this. For example, when the remote commander 10 is operated at a short distance, since a high light intensity is detected as the reference light emission signal RC, the pulse duty of the modulation command code is reduced as shown in FIG. Lower. In this case, even if the infrared output intensity is lowered, the infrared command code is sufficiently received by the control device 20 side, so that malfunction does not occur and the power consumption of the remote commander 10 is saved.

Further, when the remote commander 10 is operated at a long distance, the detected reference light emission signal R
The light intensity as C becomes small, and the pulse duty of the modulation command code becomes maximum (50%) as shown in FIG.
%) To increase the infrared output intensity. That is, in this case, a certain high infrared output intensity is required to perform good command code transmission. When the transmission conditions are bad as described above, the infrared command code is sufficiently received by the control device 20 side by increasing the infrared output intensity, so that no malfunction occurs.

Further, in the remote commander 10, by controlling the output cycle according to the operation state,
We are trying to save electricity. For example, when the voltage values Ex and Ey supplied to the control unit 5 are in the range of 2.5V ± 0.5V,
This is the case where the remote commander 10 is almost stopped. In other words, the x and y displacement information is in a state of hardly changing. In such a case, it is useless to transmit the command code at the normal rate as shown in FIG. 11A. Therefore, in this embodiment, the command code is transmitted every one cycle as shown in FIG. 11B. I have to. Further, it is not necessary to transmit the enter command at the same cycle as the command code output according to the fast movement in the x and y directions. Therefore, the enter command is also shown in FIG.
As shown in (b), it is transmitted every other cycle.
Thus, by reducing the number of transmissions according to the operation state, that is, by shortening the light emission time of the light emitting diode D ₁ , it is possible to eliminate wasteful power consumption.

FIG. 7 shows the processing of the control unit 5 of the remote commander 10 for realizing the above operation, and FIG. 8 shows the processing of the control unit 22 of the control device 20.

As shown in FIG. 7, the remote commander 1
When the enter operation key 7 is operated, the control unit 5 of 0 reads out and modulates the enter command from the ROM 5b and supplies it to the transmitting unit 6. The supply of this enter command is shown in FIG. 11 (b). As shown in, execute every other cycle (F101 → F102). Further, the control unit 5 always detects the voltage values Ex and Ey from the speed sensors 1x and 1y, but when the voltage values Ex and Ey are values not included in the range of 2.5V ± 0.5V, A command code serving as x and y displacement information is supplied to the transmission unit 6 at a normal rate as shown in FIG. 11A (F103 → F105). On the other hand, the voltage values Ex and E
When y is a value within the range of 2.5V ± 0.5V,
A command code serving as x and y displacement information is supplied to the transmission unit 6 every other cycle as shown in FIG. 11B (F103 → F104).

The infrared command code transmitted from the remote commander 10 is received by the receiving section 2 of the control device 20.
1 is received, but the control unit 22 of the control device 20
When the command code is received, as shown in FIG. 8, the predetermined process is executed according to the content of the command code (F201 → F202). Then, the timer is counted from the time when the command code is received, that is, the start timing of one cycle of command transmission, and the process waits for a certain period of time (F203). This fixed time is a waiting time from the start of one cycle until the output of the reference light emission signal RC is started as shown in FIG. 9C, that is, a specific time without a command code in one cycle. It waits for the time. Then, after waiting for a certain period of time, the reference light emitting unit 28 is kept for a certain period of time from that point.
To output the reference light emission signal RC as shown in FIG.
(F204).

The control unit 5 on the remote commander 10 side also waits for a certain time from the start timing of the command code transmission cycle by the timer count in step F106 of FIG. Then, at the end of the standby, the data output from the A / D converter 13 is fetched (F107). That is,
The data output from the A / D converter 13 is captured at the timing when the reference light emission signal RC in FIG. 9D is received. Then, the pulse duty of the modulation command code to be supplied to the transmitter 6 is set based on the captured value, that is, the light intensity of the reference light emission signal RC. For example, the light intensity is compared with a predetermined threshold value, and FIG.
The pulse duty is set as in (b) or (c).

By the way, generally, the directivity of the light receiving portion is very wide, while the directivity of the light emitting portion is narrow. Regarding the present embodiment, in order to measure the intensity of the reference light emission signal accurately, the transmitter 6 of the remote commander 10 as shown in FIG.
Experiments were carried out by combining the directivity (solid line) and the directivity of the receiving unit 11 (broken line), and the directivity of the reference light emitting unit 28 of the control device 10 (solid line) and the directivity of the receiving unit 21 (broken line). In this case, even if the optical axes of the remote commander 10 side and the control device 20 side are deviated as shown in FIG. 12, the remote commander 10 is in a state of being exactly proportional to the light intensity in the receiving section 21 of the control device 20. Now, the intensity of the reference emission signal can be measured. In the figure, a and b correspond to the original difference in light intensity, that is, in the state of b, the optimum state is obtained by increasing the emission intensity by the difference from the state of a.

As described above, in this embodiment, the light emission intensity of the infrared signal of the remote commander 10 is variably controlled according to the light intensity of the reference light emission signal from the control device 20 and the operation state of the remote commander 10. Therefore, the light emitting operation is not performed with an unnecessarily high intensity. Therefore, the power saving is remarkably promoted and the battery life is extended. The battery life is 1 due to the configuration of this embodiment.
I was able to extend it to about 0 times.

It should be noted that the present invention is not limited to the embodiment, and various modifications can be considered. For example, in the embodiment, the pulse duty of the command code is changed only in two ways shown in FIGS. 10B and 10C, but in reality, it is changed in more steps in accordance with the value of the light intensity of the reference light emission signal RC. Preferably. Further, the change of the output cycle (light emission time) of the command code according to the operation state is described only in two ways of FIGS. 11A and 11B, but this may also be changed variously according to the voltage values Ex and Ey. You may For example, it is conceivable that the normal rate is changed every other cycle, the transmission is performed twice every three cycles, and the cycle is changed in multiple steps such as every two cycles. Furthermore, when the cursor K almost stops, no output is given,
The light output may be completely zero.

Further, the remote commander 10 of the embodiment has a structure for changing the light emission intensity according to the value of the light intensity of the detected reference light emission signal RC and a structure for changing the light emission time according to the operation state. Both of them are installed, but either one may be installed as the present invention.

Further, the infrared emission intensity of the light emitting diode D ₁ is changed by changing the pulse duty of the modulation command code supplied, but it is also possible to change the amount of current flowing to the light emitting diode D _1. realizable. For example, the transmitter 6 is configured as shown in FIG. That is, the resistors R ₁₁ and R ₁₂ are connected in parallel to the resistor R ₁₄ . The resistors R ₁₁ and R ₁₂ respectively connect the transistors Q ₁₁ and Q ₁₂ in series. The light emitting diode D ₁₁ is
The modulation command code is supplied to the transistor Q ₁₃ via the resistor R ₁₃ , and light is emitted during the period when the transistor Q ₁₃ is conductive. At this time, the amount of current to the light emitting diode D ₁₁ is the same as that of the transistors Q ₁₁ and Q _12. It will be possible to change it by controlling. That is, in this example, the resistance R ₁₂
Assuming that = R ₁₁ , when turning off the transistors Q ₁₁ and Q ₁₂ , only the transistor Q ₁₁ (or only Q ₁₂ )
The case of on, so that can vary the amount of current into three stages in the case, to turn on the transistors Q _11, Q _12.

Further, according to the present invention, as in the embodiment, not only the remote commander using the angular velocity sensor but also a wireless personal computer mouse, a geomagnetic sensor, an acceleration sensor, a pressure sensor, an inclination sensor, etc. are used. The present invention can be applied to various remote commanders, such as remote commanders that output various infrared command signals in response to button operations, and remote control systems using the remote commanders. Further, not only the infrared method but also a remote commander of a method of transmitting a command signal using radio waves, a laser, an ultrasonic wave or the like and a remote control system using the same can be applied. Furthermore, the remote control system of the present invention is
It can be widely adopted as a system corresponding to not only V devices but also electronic devices such as air conditioners, personal computers, game machines and the like.

[0050]

As described above, in the remote control system of the present invention, the transmission condition depends on the light intensity (signal intensity) of the light emission signal (output signal) from the reference light emission means (reference output means) on the control device side. By discriminating between and determining the output intensity of the infrared signal and the like, useless power consumption can be eliminated, and the battery life of the remote commander can be extended. Also, with a remote commander that always outputs a command signal, wasteful power consumption can be eliminated by varying the command signal output time (infrared emission time) according to the operating state. This also reduces the battery life of the remote commander. A long life can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram of a remote commander according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a remote commander according to an embodiment.

FIG. 3 is an explanatory diagram of an angular velocity sensor used in the remote commander of the embodiment.

FIG. 4 is an explanatory diagram of a relationship between an angular velocity and a voltage output in the angular velocity sensor of the remote commander of the embodiment.

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

FIG. 6 is an explanatory diagram of an operation content display example by the control device of the embodiment.

FIG. 7 is a flowchart of processing of a control unit of the remote commander of the embodiment.

FIG. 8 is a flowchart of a process of a control unit of the control device according to the embodiment.

FIG. 9 is an explanatory diagram of an operation of the remote control system according to the embodiment.

FIG. 10 is an explanatory diagram of a light emission intensity varying operation in the remote control system of the embodiment.

FIG. 11 is an explanatory diagram of a light emission time variable operation in the remote commander of the embodiment.

FIG. 12 is an explanatory diagram of directional characteristics of the remote control system according to the embodiment.

FIG. 13 is an explanatory diagram of another light emission intensity varying operation in the remote control system of the embodiment.

[Explanation of symbols]

 1,1x, 1y Vibration gyro 3,3x, 3y, 12 Amplification section 4,4x, 4y, 13 A / D converter 5,22 Control section 7 Enter key 6,26 Transmission section 10 Remote commander 11,21 Reception section 20 Control device 28 Reference light emitting unit

Claims (7)

[Claims] 1. A remote commander comprising a transmission means for outputting a command signal in response to an operation, and a control device capable of taking in a command signal from the remote commander and executing an operation in accordance with the command signal. In the remote control system described above, the control device is provided with reference output means for performing a signal output operation with a predetermined output intensity, and the remote commander receives an output signal from the reference output means, and outputs the signal. A signal strength detecting means capable of detecting strength and a transmission strength controlling means capable of varying the output strength of the command signal in the transmitting means according to the signal strength detected by the signal strength detecting means are provided. The remote control system is characterized by. 2. A remote commander equipped with a transmitting means for outputting a command signal as an infrared signal in response to an operation, and receiving an infrared signal from the remote commander to fetch the command signal and execute an operation in accordance with the command signal. In the remote control system including a control device capable of performing the above, the control device is provided with a reference light emitting means for performing a light emission signal output operation with a predetermined light emission intensity, and the remote commander is provided with the reference light emitting means. A light intensity detection means capable of receiving the light emission signal from the light intensity detection means, and varying the light emission intensity of the infrared signal in the transmission means according to the light intensity detected by the light intensity detection means. And a transmission emission intensity control means capable of Cement-roll system. 3. The transmission light emission intensity control means is configured to change the light emission intensity of the infrared signal by changing the light emission time of the infrared light emitting element in the transmission means. The remote control system described in 2. 4. The transmission emission intensity control means is configured to vary the emission intensity of the infrared signal by varying the amount of current supplied to the infrared light emitting element in the transmission means. The remote control system according to claim 2. 5. A command signal generating means for outputting a command signal in a predetermined cycle according to an operation, a transmitting means for transmitting and outputting a command signal supplied from the command signal generating means, and the transmitting means according to an operation state. In the remote commander, an output time variable control means capable of variably controlling the command signal output time in the above is provided. 6. A command signal generating means for outputting a command signal at a predetermined cycle in response to an operation, a transmitting means for outputting a command signal supplied from the command signal generating means as an infrared signal, and the operating means according to the operating state, A remote commander provided with a light emission time variable control means capable of variably controlling an infrared light emission time in a transmission means. 7. The light emission time variable control means variably controls the infrared light emission time in the transmission means by changing the command signal output cycle from the command signal generation means in response to an operation. The remote commander according to claim 6.