JP2705487B2 - Remote control device for housing equipment - Google Patents

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 for housing equipment for remotely controlling housing equipment by using a radio wave signal, and more particularly to a battery-operated housing equipment requiring low power consumption. The present invention relates to a device remote control device.

[0002]

2. Description of the Related Art There is a hot water supply apparatus as this kind of household equipment. Hereinafter, a conventional technique will be described based on an example of a hot water supply device.

[0003] In recent years, hot water heaters have installed heat source equipment outdoors,
The mainstream is to provide an operation unit indoors and wire it with a control unit of a heat source unit to perform operation operation. On the other hand, in order to simplify the installation work and improve the operability, there is a demand for an operation unit provided at an arbitrary position and capable of being remotely operated.

[0004] Conventionally, this type of hot water supply apparatus is disclosed in
No. 7671 has been devised. The configuration will be described below with reference to FIG. As shown in the figure, a burner 32 for gas combustion, a solenoid valve 33 for controlling gas supplied to the burner 32, and a control circuit 34 are built in a hot water supply device 31 installed outdoors and provided indoors. The receiver 36 includes a receiver 36 for receiving a radio signal from the transmitter 35 and a return signal 37 for transmitting a radio signal to the receiving mechanism of the transmitter 35. When the hot water is supplied from the water tap 38, a radio signal is transmitted from the transmitter 35 to the receiver 36, input to the control circuit 34, and the burner 32 is controlled by the gas control solenoid valve 33.

[0005]

However, in the above conventional configuration, when a radio signal is transmitted from a transmitter installed in a room to a water heater, a collision occurs with a radio signal of the same frequency that is accidentally emitted from another at the same time. There was a problem that it was not possible to avoid. So we solved these issues
To, to have a receiving function to the transmitter side, upon transmission
First, on the radio waves from the other, it was confirmed that not out, sent Te
In the technical field of wireless communication, the method of starting
This is a commonly used method. Therefore,
It is conceivable to use this method to solve problems
It is. In such a case, two configurations are conceivable. First
Is to turn on the power of the receiver and the transmitter at the same time, and control the transmitter to perform the transmission operation while confirming that the receiver does not emit radio waves. In the second configuration, first, only the power of the receiver is turned on, and after confirming that no radio wave is emitted from the other, the power of the receiver is turned off. Things.

However, in the case of the first configuration, Ri power receiver and transmitter the name large circuit current value for simultaneously turned on, when the battery-operated remote control, the problem that battery life is shortened in the other, when the internal impedance is large been weakened battery, the internal impedance voltage drop it by the output voltage of the battery I large Kikuna there is a problem that decreases. Next the case of the second configuration, after confirming that no out radio waves emitted from the other by a receiver, firing actually transmitted signal to turn on the transmitter with respect to household equipment It takes a considerable amount of time before the radio signal is emitted and transmitted
There was a problem that it could collide with the radio signal .

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. When a radio signal is transmitted from a remote controller to equipment, a radio signal transmitted from the other line and detected on the same line is detected to prevent a collision beforehand, and a receiver is provided. It is another object of the present invention to provide a battery-operated remote controller for household equipment by controlling the circuit current supplied to the transmitter to the minimum necessary.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a transmitting means for transmitting a radio wave signal to a household equipment, and a radio transmitted from the household equipment. receiving means for receiving a radio signal, a transmitter power supply means for supplying the circuit power source to said transmitting means, thereby constituting the receiving unit power supply means for supplying the circuit power source to the reception means,
A transmitting signal generator for forming a transmission signal such as a modulator for modulating transmission data or an oscillator for supplying a carrier signal; and an amplifier for amplifying an output of the transmission signal and emitting the signal from an antenna. Composed of output amplifiers
And, wherein the transmitting unit power supply unit in the second transmission unit power supply means for supplying power to the first transmission unit power hand stage and said output amplifier for supplying power to the transmission signal generating unit
Configure and transmit a radio wave signal to the housing equipment
When turning on, the receiving unit power supply means is turned on and the receiving means is turned on.
Monitoring the communication line by activating the first transmission;
The transmission signal can be sent at any time by turning on only the power supply
Work in parallel and make sure the communication line is empty.
After the transmission state and the transmission enabled state, the second transmission
Turns on the power supply means, amplifies and outputs the transmission signal, and outputs the antenna.
It is configured to be fired from .

In addition, the communication line is available and transmission is possible.
After the state has been reached, the second transmitting section power supply means is turned on to transmit.
Amplify and output the signal, and
The power is turned off to save power .

[0010]

According to the present invention, when a radio wave signal is transmitted from the transmitting means of the remote control device to the household equipment, the receiving section power supply means is first turned on, the receiving means is activated, and the communication line is idle. Make sure that In the meantime, the first transmission unit power supply unit is turned on to activate the transmission signal generation unit to prepare for transmission. When transmission preparation is completed and the vacant state of the communication line is confirmed, the receiving unit power supply unit is turned off and the second transmitting unit power supply unit is turned on, so that the transmission signal can be immediately emitted from the antenna to the space, and The object of the present invention is to realize highly reliable wireless signal transmission without collision of wireless radio signals while minimizing the current.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a circuit block diagram of a remote control device for household equipment, wherein 1 is a receiving means, 2 is a transmitting means, 3 is a transmission / reception control means, 4 is an antenna, and 5 is a power supply.

The receiving means 1 comprises an RF amplifier 11, a mixer 1
2, IF amplifier 13, detector 14, carrier detector 1
5. A superheterodyne detection system is constituted by a local oscillator including the VCO 16 and the PLL 17. The radio signal coming from the antenna 4 is transmitted to the RF amplifier 1
After being amplified by 1, the signal is mixed by the mixer 12 with the oscillation signal from the local oscillator and frequency conversion is performed. After being amplified by the IF amplifier 13, it is demodulated into the original data signal by the detector 14, input to the transmission / reception control means 3 as an RDATA signal, and decoded. The output of the IF amplifier 13 is input to the carrier detector 15, and the carrier detector 15 outputs the carrier detection signal CDET to the transmission / reception control unit 3 only when a radio wave signal of a predetermined frequency is input from the antenna 4. The local oscillator composed of the VCO 16 and the PLL 17 is configured such that the oscillation frequency fR is selectively set by the RSET signal from the transmission / reception control means 3, and returns the RLOCK signal when the oscillation is stabilized.

Power is supplied to the receiving unit 1 from the receiving unit power supply unit 8, and is turned on / off by an RPWR signal from the transmission / reception control unit 3.

The transmitting means 2 comprises a transmitting signal generating section 6 and an output amplifier 7. The transmitting signal generating section 6 supplies a carrier signal by a transmitter constituted by a VCO 18 and a PLL 19, and a transmitting and receiving controlling means by a modulator 20. 3 modulates the carrier signal with the transmission data SDATA output from 3 to form a transmission signal. The carrier signal oscillator composed of the VCO 18 and the PLL 19 is controlled by the SSET signal from the transmission / reception control means 3 to generate an oscillation frequency fS
Is selected and set, and when oscillation stabilizes, SLOC
It is configured to return a K signal.

Power is supplied to the transmission signal generator 6 and the output amplifier 7 by the first transmitter power supply 9 and the second transmitter power supply 10, respectively. The SPWR1 signal and the SPWR2 from the transmission / reception controller 3 are supplied. On / off control is performed by a signal.

The transmission / reception control means 3 comprises the transmission means 1, the reception means 2 and the respective power supply means 8,
9 and 10 are controlled, but can be effectively realized by using a microcomputer and controlling the program.

The receiving section power supply 8, the first transmitting section power supply 9 and the second transmitting section power supply 10 are connected to a power supply 5 composed of a battery.

Next, the operation will be described with reference to FIG. In the figure, (a) shows the RPWR signal for turning on the receiving unit power supply unit 8 to make the receiving unit 1 active, and (b) shows the VRP of the receiving unit.
The time tR from when the RSET signal for setting the frequency of the local oscillator constituted by the CO 16 and the PLL 17 is output to when the oscillation of the local oscillator stabilizes and the RLOCK signal responds. (C) SPWR for turning on the first transmission unit power supply means 9 to activate the transmission signal generation unit 6
(D) is a signal for setting a frequency of a carrier signal oscillator composed of a VCO 18 and a PLL 19 of a transmission unit.
After the SET signal is output, oscillation stabilizes and SLOC
The time tS until the response of the K signal is received is shown. (E) shows an SPWR2 signal for turning on the second transmitting section power supply means 10 to make the output amplifier 7 active.

That is, in section I, when transmitting a radio wave signal from the remote control device to the household equipment, a process for confirming whether or not a radio wave is being emitted from another source, that is, whether or not the communication line is idle. This is a section in which the receiving means 1 is activated during the time tR, and the vacant state of the communication line is checked during the next time tT.

The next section II is a section for emitting a radio wave signal via the antenna 4 when the communication line is idle. The transmission preparation has already been completed at time t of section I.
Since transmission is completed in S, transmission is possible immediately.

According to the configuration of this embodiment, the time from the detection of the vacant state of the communication line to the actual emission of the radio signal can be minimized. There is an effect that it can be prevented.

In the section I, the circuit current iR of the receiving means 1 and the circuit current iS of the transmission signal generator 6
In the section II, the sum of iS1 and the circuit current iS2 of the output amplifier 7 is obtained. For example, the current 40
For a transmitting / receiving circuit in the 0 MHz band, iR = 30 mA,
Since a circuit current of about iS1 = 10 mA and iS2 = 40 mA is required, in section I, iR + iS1 = 40 m
A, in section II, iS1 + iS2 = 50 mA, and 50 mA may be considered as the peak current. Therefore, even when the internal impedance of the battery increases, the voltage drop is reduced, and the battery life can be extended.

[0024]

As described above, the remote controller for housing equipment of the present invention, when transmitting a radio wave signal to the housing equipment, first turns on the power supply of the receiving section, activates the receiver, and performs communication. While performing the work of confirming that the line is idle, the transmission unit turns on only the first transmission unit power supply, activates the transmission signal generation unit, and precedes the transmission preparation,
Thereafter, after the transmission preparation is completed and the vacant state of the communication line is confirmed, the receiving unit power supply unit is turned off and the second transmission unit power supply unit is turned on, and the transmission signal is immediately emitted from the antenna. Therefore, the power supply operation to the transmission / reception means in such a case is optimized, and collision of radio wave signals is avoided, and highly reliable radio signal transmission and minimization of circuit current can be realized.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram of a transmission / reception unit of a remote control device according to an embodiment of the present invention.

FIG. 2 is a partial timing chart showing the operation of the apparatus.

FIG. 3 is a configuration diagram of a conventional hot water supply device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 reception means 2 transmission means 3 transmission / reception control means 4 antenna 6 transmission signal generation unit 7 output amplifier 8 reception unit power supply means 9 first transmission unit power supply means 10 second transmission unit power supply means

Claims (2)

(57) [Claims] A transmitting means for transmitting a radio wave signal to the housing equipment; and a transmitting means for transmitting the radio wave signal from the housing equipment.
Together with a receiving means for receiving a radio wave signal, and a transmitter power supply means for supplying the circuit power source to said transmitting means, when configured by the receiving unit power supply means for supplying the circuit power source to the reception means
The firing the transmission unit and transmitting a signal generator for forming a transmit signal including an oscillator for supplying a modulator and a carrier signal for modulating the transmission data, from the antenna to amplify the output of the transmission signal constituted by an output amplifier for the transmitter unit power supply means the transmission signal generating unit a second for supplying power to the first transmission unit power supply means and said output amplifier for supplying power to the And a transmission unit power supply means for transmitting a radio wave signal to the household equipment.
When transmitting, the receiving unit power supply unit is turned on and the receiving unit is turned on.
To activate the communication line and monitor the communication line;
Turn on only the power supply of the transmitter and transmit the transmission signal at any time
The work of preparing for the possible state is performed in parallel, and the communication line is
After the vacant state and the transmission enabled state, the second
Turn on the transmitter power supply, amplify and output the transmission signal, and
A remote control device for housing equipment that fires from 2. The communication system according to claim 1, wherein said communication line is in an empty state and said transmission is possible.
After that, the second transmission unit power supply unit is turned on to transmit the transmission signal.
And the receiver power supply means is turned off immediately.
The remote control device for housing equipment according to claim 1, wherein power is saved by performing the operation.