JPS59228496A - Remote control device - Google Patents

Abstract

PURPOSE:To make it possible to use many signal waves in the same type of device without radio interference by using the mixture of sine waves having frequencies, which are selected optionally from plural different frequencies, as a signal wave generated in a transmitter. CONSTITUTION:When a push-button switch 15 is depressed, a liquid crystal indicator 16 is lit. A carrier is oscillated, and sine waves having frequencies f1, f2, f3-f7 are outputted from output terminals 18-1-18-7 of a signal wave oscillator 18. Sine waves having frequencies f2 and f5 are taken into a mixing circuit 19 by lead wires 23 and 24, and the carrier from a carrier oscillator 17 and the sine wave from the mixing circuit 19 are modulated by an FM modulation circuit 20, and the signal wave is transmitted from an antenna 22 through an output circuit 21. The signal wave is received by a receiver and is demodulated to detect the presence/adsence of sine wave components having frequencies f1-f7 in a discriminator.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device comprising a portable FM transmitter and receiver, which generates the necessary output for remotely controlling a given device.

Generally, devices such as wirelessly operated garage door openers use a wireless transmitter and receiver, but the allowed bandwidth for this type of device is extremely narrow, and malfunctions due to interference etc. are inevitable. Therefore, there was a problem that - models could not be manufactured and sold in large quantities.

(2) According to regulatory regulations, the average transmitted electric field strength must be kept below a specified level, but even if the output is at a low level, it is possible for many devices of the same type to be used within the range. In such a case, if a malfunction occurs due to interference, a major accident may occur.

The present invention has been made based on the above-mentioned viewpoints, and its purpose is to provide a mobile phone that does not cause mutual interference even when a large number of devices with the same carrier frequency are used at close range. An object of the present invention is to provide a wireless remote control device.

The gist of the project is to create a portable lighter-type, key-chain-type,
In a remote control device consisting of a pen-shaped, pendant-shaped, rocket-shaped, etc. transmitter and a receiver that receives and demodulates the signal waves transmitted from the transmitter and generates the required output, The signal waves to be generated have a plurality of mutually different frequencies f
1. It is made by mixing sine waves of a frequency arbitrarily selected from f2f3-ffL, and the receiver has a
3) n discriminators that detect sine wave components having frequencies f, f2, f3-ffL in the modulated signal wave, and frequencies selected in the oscillator by the n discriminators. A discriminating circuit is provided which generates an output signal only when all sine waves of frequencies are detected and all sine waves of unselected frequencies are not detected.

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is an overall perspective view of a lighter-type portable transmitter showing one embodiment of a portable wireless remote control device according to the present invention, and FIG. 2 is an overall perspective view of a keychain-type portable transmitter showing another embodiment. , FIG. 3 is an overall perspective view of the receiver, FIG. 4 is a block diagram of the transmitter, and FIG. 5 is a block diagram of the receiver.

In Figures 1 and 2, 1 is a lighter type transmitter, 2 is a push button switch, 3 is a liquid crystal display, 4 is a keychain type transmitter, 5 is a push button switch, 6 is a liquid crystal display, 7
is the key.

Both transmitters have batteries and antennas (not shown) (4) Built-in.

Although the portable transmitter of this embodiment is shaped like a lighter or a key chain, it can also be shaped like a pen, pendant, rocket, etc.

Further, in FIG. 3, 8 is a receiver, 9 is a buzzer, 10 is a liquid crystal display, 11 is a charging plug, 12 is an external output outlet, and 13 is a receiving antenna.

The receiver has a built-in charger and a CADNICA battery (not shown).

Further, in FIG. 4, 14 is a power supply terminal, 15 is a push button switch, 16 is a liquid crystal display, 17 is a carrier oscillator, and 18
is a signal wave oscillator, 19 is a mixing circuit, and FM modulation circuit,
21 is an output circuit, 22 is an antenna, and U is a lead wire.

As shown in the block diagram of FIG. 4, the portable transmitter 1 turns on and off the power using a push button switch 15. When the push button switch 15 is pressed, the liquid crystal display 16 turns on, and during input, the liquid crystal display 16 turns on. The display 16 is turned on. A carrier of several tens of megahertz is oscillated from the carrier oscillator 17, and sine waves with frequencies f, f2, f3-fl are output from the output terminals 18-1 to 18-7 of the signal wave oscillator 18, respectively. be done.

Therefore, in the illustrated state, f
The sine waves of F2 and f5 are taken into the mixing circuit 19, and F
The M variable surface circuit 20 modulates the carrier from the carrier oscillation 1117 and the sine wave from the mixing circuit 19, and outputs it to the output circuit 21.
A signal wave is transmitted from the antenna 22 via the antenna 22.

In addition, in FIG. 5, 5 is a receiving antenna, 26 is a demodulator, and 2 is a receiving antenna.
7-1 to 27-7 are discriminators whose bands are fl to fl, respectively, 28-1 to 28-7 are their detection circuits, 29-1 to 29-7 are their Schmitts)) trigger circuits, and 30 is a discriminator. In the circuits, 31-1 to 31-5 are input negators, 32 is an AND circuit, 33 is a buzzer, 34 is a liquid crystal display, and 35 is an external output terminal.

The antenna 5 of the receiver 8 as shown in the block diagram of FIG.
When received by the demodulator 26, the frequency-modulated signal wave is first demodulated. Next, the frequency fl
The presence or absence of sine wave components f7 to f7 is detected. The outputs of the discriminators 27-1 to 27-7 are sent to the detection circuit 28.
-1 to 28-7 and Schmitt trigger circuits 29-1 to 29-7, and are connected to the discrimination circuit 30.

The discrimination circuit 30 is configured corresponding to the leads UA23 and UA24 of the oscillator 1.

That is, in this embodiment, since the signal wave consists of sine waves of frequencies f2 and f5, the outputs of the Schmitt trigger circuits 29-2 and 29-5 are in state 1, and the outputs of the other Schmitt trigger circuits 2
The outputs of 9-1.29-3.29-4.29-6 and 29-7 are in state O, the former directly and the latter the input negator 31-1.31-2.31-3.31 -4 and 31
Since the signal is input to the AND circuit 32 through -5, the output of the AND circuit 32 becomes state 1, the buzzer 33 sounds, the liquid crystal display 34 lights up, and an output is given to the external output terminal 35.

However, if there are no components of frequencies f2 and f5 selected by the transmitter, or there are no components of frequencies f1, f3, f4 that were not selected,
, fg, or f7 is detected (7), the AND circuit 32 does not generate an output, and therefore does not operate when radio waves from other oscillators are received. - If there are 7 types of sine waves used as signal waves, there are 2 combinations.
7 = 128 types, and if there are 10 types, 21G = 10
24 types of distinctions are possible.

Thus, the transmitter/receiver is used within a range of 30 to 50 meters.

Since the present invention is structured like a ridge, when using the present invention, when the receiver is set indoors and the push button switch of the transmitter is pressed when returning home, the buzzer of the receiver responds to the frequency and the buzzer of the receiver is activated. The alarm will ring to alert family members that the person has returned home. In addition, if you connect the external output of the receiver to the garage door opener, you can operate the receiver's external output by operating the transmitter from inside the car when you get home, and the garage door opener will automatically open the garage door. get.

Note that the configuration of the present invention is not limited to the embodiment on the ridge. In other words, the block diagram of the transmitter/receiver may be other variations, and the design can be changed freely within the scope of the object (8) of the present invention. In particular, in addition to the present invention, the external output of the receiver can also be used for opening a safe and for inputting power to electrical equipment such as a cooler, and the present invention encompasses all of these uses. It is.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a lighter-type portable transmitter showing one embodiment of a portable wireless remote control device according to the present invention, and Fig. 2 is an overall perspective view of a keychain-type portable transmitter showing another embodiment. 3 is an overall perspective view of the receiver, FIG. 4 is a block diagram of the transmitter, and FIG. 5 is a block diagram of the receiver. 1.-------------------・------------Writer type transmitter 2.5.15--------Push button switch 3.6. 10.16.34 - Liquid crystal display 4 - - - - - - - - - - - - Key chain type transmitter? −−−−−−−−−−・−−−−−
-...--Key (9) 8------11-1---------1 Receiver 9.33- ・--111-- ------Buzzer 11-----------------------11 Plug 12-- ---
------Outlet 13.22, δ...
・−Antenna 14−・・−−−−−・・・・・・
・−・−・Power terminal 17−−−−・−・−−−−−
-1...-Carrier oscillator 18...---1-
−−・−・−−−m−−−・−Signal wave oscillator 18-1
~18-7- ・-Output terminal 19--・----1----m----Mixing circuit 20---------・・---1---・−・−−
- FM modulation circuit 21...--
−・・−・・Output circuit edict, 24・−・・−・−−m
−−−−−・− Lead wire 26・−−−−・・−・−・・
-・-・−・・・Demodulators 27-1 to 27-7・−・
-Discriminator 28-1 to 28-7--Detection circuit 29-1 to 29-7--Schmitt trigger circuit 30
・−・・−・−・−−−−−−−−11−−−−Discrimination circuit 31-1 to 31‐5−−−−−One power negator 32−−
−−−−−−−−−−−−−−−−−−−−−−−−−−−−AND circuit (10) 35−−−−1・−−−−−−−−−−−−・−・−External output Terminal patent applicant Suzuki Gokin Co., Ltd. Agent (7524) Shodai Mogami (11) Figure 3 Figure 1 Figure 1

Claims (1)

[Claims] 1) A remote control device comprising a portable transmitter that interrogates the frequency of a signal wave and transmits it, and a receiver that receives and demodulates the signal wave transmitted from the transmitter and generates the required output power. In the operating device, the signal wave emitted in the transmitter is a mixture of sine waves arbitrarily selected from a plurality of mutually different frequencies f, , f2, f3-ffL, and the signal wave in the receiver is , frequencies fl, f2, f3・−f IL in the demodulated signal wave
n discriminators detecting sine wave components, and the n discriminators detect all the sine waves of the frequencies selected in the Th converter, and detect the sine waves of the frequencies not selected. Determination Fl that generates an output only when all are not detected? The remote ti cultivation device described above is characterized by the presence of a. (1) 2) Claim 1, wherein the transmitter is a lighter type.
Remote control device as described in section. 3) The remote control device according to claim 1, wherein the transmitter is in the form of a key chain. 4) The remote control device according to claim 1, wherein the transmitter is pen-shaped. 5) The remote control device according to claim 1, wherein the transmitter is pendant-shaped. 6) Claim 1, wherein the transmitter is rocket-shaped.
Remote control device as described in section.