JPH104590A - Remote control receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the power consumption when a receiver is turned off by allowing the receiver to be intermittently turned on/off with a timer except the reception of a remote control signal. SOLUTION: A receiver 30 receiving a signal from a transmitter uses an intermittent operation circuit 32 to allow a timer to intermittently turn on/off a power supply voltage. On the other hand, since the transmitter sends respetitively a same remote control signal, the remote control signal is received only when the receiver 30 is turned on. When the receiver 30 receives the remote control signal, a microcomputer 34 invalidates the operation of the intermittent operation circuit 32 to keep the receiver 30 to be an on-state. Moreover, a remote control signal read end discrimination circuit 36 discriminates it that reading of the remote control signal is finished, then the receiver 30 turns off. Thus, the power consumption is reduced by intermittent on/off operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device provided in various home appliances such as various one-way or two-way communication devices, a solar lighting system, and an air conditioner.

[0002]

2. Description of the Related Art Generally, a device provided at a high position or a remote position is provided with a remote control device, and can be remotely operated using a wireless transmission medium such as an infrared ray or a wired transmission medium such as a signal cable. It is possible. Many of today's remote control devices employ a wireless (infrared) method.

[0003] The remote control device includes a portable operation terminal for transmitting an infrared control signal, and a receiver provided in a device to be controlled. The control signal received by the receiver is decoded by a decoder, and the control target is decoded. It is sent to the control device of the equipment.

[0004]

In the above-mentioned conventional remote control receiving apparatus, the receiver is always supplied with power to receive a control signal transmitted from the remote control apparatus, and stands by in a so-called ON state. Therefore, there is a problem that power consumption in the receiver is large.

It is an object of the present invention to provide a remote control receiver capable of reducing power consumption.

[0006]

According to an aspect of the present invention, there is provided a remote control apparatus having a transmitter and a receiver for transmitting and receiving a remote control signal. It is configured to include an intermittent operation circuit for intermittently turning on and off.

According to a second aspect of the present invention, there is provided a mote control device having a transmitter and a receiver for transmitting and receiving a remote control signal, wherein the intermittent operation circuit intermittently turns on and off the receiver. When receiving a control signal, disable the operation of the intermittent operation circuit,
And a control circuit for keeping the receiver on until the control signal ends.

According to the first and second aspects of the present invention, the power is intermittently supplied to the receiver by the intermittent operation circuit, and the receiver intermittently turns on and off.
Power consumption can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings.

This embodiment discloses an example in which the present invention is applied to a remote control device of an active solar lighting system.

FIG. 1 shows the principle of daylighting of the daylighting system, and FIG. 2 shows an example of a daylighting window viewed from the indoor side.

As shown in FIG. 1, this daylighting system 10 is mounted on a skylight portion 12 of a house,
From the room 16 to the room 16. Daylighting system 1
An automatic sun-tracking device 18 composed of a prism is provided in the reference numeral 0.
The light from the sun 14 can be always guided to the room 16 in accordance with the movement of 4. Reference numeral 20 denotes a transparent dome, and reference numeral 22 denotes a light distribution plate.

FIG. 2 is a perspective view of the daylighting system 10 as seen from the bottom, that is, from the room 16 side. The receiving unit 26 of the remote control device is provided on the frame 24 on the bottom surface of the lighting system 10, and the receiving unit 26 receives a signal from the transmitter 28.

Next, FIG. 3 shows a block circuit of a remote control device according to an embodiment of the present invention. FIG.
, A receiver 30 that receives a signal from the transmitter 28
Are intermittently turned on and off by the intermittent operation circuit 32. That is, the intermittent operation circuit 32 is a circuit that supplies or stops the power supply voltage to the receiver 30 every predetermined time by a timer operation.

Reference numeral 34 denotes a microcomputer, and reference numeral 3 denotes a microcomputer.
Reference numeral 6 denotes a remote control signal reading end control circuit. The determination circuit 36 is a circuit for determining that reading of the remote control signal has been completed when the receiver 30 has received the remote control signal.

Next, the operation of the remote control receiver according to the embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 4, the intermittent operation circuit 32
Causes the receiver 30 to intermittently turn on and off at intervals shorter than the period T of “0” or “1”. This allows
Power consumption can be reduced while the receiver 30 is off. At this time, since the same remote control signal is repeatedly transmitted from the transmitter 30, the remote control signal is always transmitted to the receiver 3 when the receiver is on.
2 is received.

When the receiver 30 receives the remote control signal, the microcomputer 34 disables the operation of the intermittent operation circuit 32 to maintain the receiver 30 in the on state, and the remote control signal reading completion determination circuit 36
When it is determined that the reading of the remote control signal is completed, the receiver 30 is turned off. Thereby, the subsequent power consumption of the receiver 30 can be reduced.

Next, FIGS. 5 to 8 show details of the block circuit shown in FIG.

In FIG. 5, a receiver 38 receives an infrared signal 40 from a remote control and receives a received signal 4.
2 is supplied to the microcomputer 44. The receiver 38 receives the power from the power supply 46-1 via the switching element 48, and the microcomputer 44
-2. The microcomputer 44 supplies the intermittent operation signal 50 to the switching element 48 to intermittently turn on and off the switching element 48, whereby the power from the power supply 46-1 is intermittently supplied to the receiver 38, 38 will be turned on and off intermittently.

FIG. 6 shows a modification of the circuit of FIG.
, The oscillation circuit 52 that receives power from the power supply 46-3 outputs the intermittent operation signal 50 to the switching element 48.
To supply.

FIG. 7 shows another modification of the circuit of FIG.
In FIG. 7, the sub-microcomputer 54 supplies the received signal 42 from the receiver 38 to the microcomputer 44 only the regular signal 56 of the received signal 42. The sub-microcomputer 54 receives power from the power supply 46-4 and supplies an intermittent operation signal 50 to the switching element 48.

FIG. 8 shows still another modification of the circuit of FIG. 5, which is a combination of the circuit of FIG. 6 and the circuit of FIG. That is, the power supply 46-
The oscillation circuit 52 that receives power from the third intermittent operation signal 50
Is supplied to the switching element 48 and the power supply 46
The sub-microcomputer 54 receiving power from the receiver 3
Only the legitimate signal 56 of the received signals 42 from 8 is supplied to the microcomputer 44.

The receiver 38 consumes a current of several mA, and the oscillation circuit 52 consumes a current of several uA. The microcomputer 44 changes the current consumption variously depending on the operation state and the like. The current consumption is several tens mA during normal operation, and several tens mA during standby.
The current consumption is 0 uA. In the circuits of FIGS. 7 and 8,
In a normal case, the receiver 38 frequently operates when noise is applied to the receiving section of the receiver 38 when the receiver 38 is used in the standby mode. Therefore, a sub-microcomputer 54 with low current consumption is used, and a normal signal 56 is transmitted to the microcomputer 44 of the main body only when the reception signal 42 is correctly input.

[0025]

As described above, according to the present invention,
Since the receiver is turned on and off intermittently, power consumption during the off state of the receiver can be reduced, and therefore, power consumption of the remote control receiver can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lighting system.

FIG. 2 is a bottom perspective view of the lighting system.

FIG. 3 is a block circuit diagram of the remote control receiver according to the embodiment of the present invention.

FIG. 4 is a waveform diagram of a remote control signal.

FIG. 5 is a diagram showing details of a block circuit of FIG. 3;

FIG. 6 is a diagram showing a modification of the circuit of FIG. 5;

FIG. 7 is a diagram showing another modification of the circuit of FIG. 5;

FIG. 8 is a diagram showing still another modification of the circuit of FIG. 5;

[Explanation of symbols]

 Reference Signs List 30 receiver 32 intermittent operation circuit 34 microcomputer 36 remote control signal reading end determination circuit

Claims (2)

[Claims] 1. A remote control device having a transmitter and a receiver for transmitting and receiving a remote control signal, comprising: an intermittent operation circuit for intermittently turning on and off the receiver. 2. A remote control device having a transmitter and a receiver for transmitting and receiving a remote control signal, comprising: an intermittent operation circuit for intermittently turning on and off the receiver; and an intermittent operation when the control signal is received. A control circuit for disabling operation of the circuit and keeping the receiver on until the control signal ends.