JPS6264133A - Radio control device for locking/unlocking of automobile door - Google Patents

Abstract

PURPOSE:To attain the low cost and to keep the beautiful external appearance by providing a distributor to an active antenna, inputting a high frequency signal from a transmitter to a receiver by means of the distributor so as to apply locking/unlocking thereby eliminating the need for an exclusive remote control antenna. CONSTITUTION:A higher frequency than a radio frequency band or a telephone transmission/reception frequency band is selected for the carrier frequency of a remote control transmitter 5 and a pass word is sent. A distributor 21 is provided to either a radio reception antenna 2 or a telephone transmission/ reception antenna 3 in an automobile 1. A radio broadcast signal or a telephone transmission/reception signal is inputted from the distributor 21 to a radio receiver or telephone transmission/reception device 22. Further, a high frequency signal from the transmitter 5 is inputted to a tuning circuit 13 of the receiver 20. A pass word is set in advance to a decoder 15 by a data code selector 16 and when the pass word from the transmitter 5 is coincident, a control circuit 17 activates an actuator 18 to apply locking or unlocking.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wireless door locking/unlocking control device for remotely controlling a car door by wireless remote control.

(Prior Art) A conventional automobile door locking/unlocking wireless control device is shown in FIGS. 3 to 5. FIG. 3 shows a car equipped with a conventional automobile door locking/unlocking wireless control device. FIG. 4 is a block diagram of the transmitter, and FIG. 5 is a block 11 diagram of the receiver.

As shown in FIG. 3, in addition to a radio receiving antenna 2 or a telephone transmitting/receiving antenna 3, a remote control receiving antenna 4 is separately installed near the driver's side door. Then, the password code is wirelessly transmitted from the transmitter 5 toward the remote control receiving antenna 4.

As shown in FIG. 4, in the transmission 4115, a password code for locking and unlocking is set in advance in the encoder 6 using the data code selector, and the password code selected by operating the operation switch 8 is output to the modulation II 9, and a specific code is set in the encoder 6 using the data code selector. A frequency carrier wave is modulated by a modulator 9, further amplified by a power amplifier 1G, and transmitted from a transmitting antenna 11.

Further, the receiver 12 is installed in the automobile 1, and as shown in FIG.
The carrier wave from 15 is received by the tuning circuit 13, and the demodulator! 4
The password code is extracted and inputted to the decoder 15. This decoder 15 has a password set in advance by the data code selector 1B, and a password is set in advance from the transmitter 5 to the receiver 1! If both of the password codes match, a signal for an operation corresponding to the password code is output to the control circuit 17. and,
The control circuit 17 operates the seven actuators 18 in response to a predetermined signal to perform locking or unlocking.

In this way, the vehicle door can be locked and unlocked by remote control operation using the password transmitted from the transmitter 5.

The personal identification codes of the transmitter 5 and the receiver 12 are set to arbitrary values as binary codes of ten-digit numbers for each car, and are made to be different for each car.

(Problems to be Solved by the Invention) In the conventional automobile door lock/unlock wireless control device described above, the remote control receiving antenna 4 must be installed separately from other antennas, which is not economical. , - In addition, there are problems in that the number of antennas protruding from the automobile l spoils the aesthetic appearance, and the protruding antennas increase the danger to the outer periphery of the car body.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems with the conventional radio control device for locking and unlocking automobile doors. To provide a wireless control device for locking and unlocking automobile doors that does not require installation, is inexpensive as a whole, and does not impair aesthetic appearance.

(Means for Solving the Problem) In order to achieve the above object, the wireless control device for locking and unlocking automobile doors according to the present invention transmits a preset password code (sent from 8 devices to the vehicle). A radio control device for locking/unlocking a car door that receives the PIN code with an installed receiver and operates an actuator in response to the PIN code to lock/unlock a car door. A distributor is provided, the transmitter transmits the PIN code using a carrier wave with a higher frequency than a radio broadcasting frequency band or a telephone transmission/reception frequency band, and the distributor inputs the high frequency signal to the receiver. It is configured.

(Function) A distributor is installed in the radio receiving antenna or the telephone transmitting/receiving antenna, and the transmitter transmits the password using a carrier wave with a higher frequency than the radio broadcasting frequency band or the telephone transmitting/receiving frequency band. Since the receiver is input to the receiver to lock and unlock, the radio receiving antenna or telephone transmitting/receiving antenna can also be used as a conventional remote control receiving antenna, eliminating the need to install a separate remote control receiving antenna. This makes the device as a whole cheaper. In addition, the number of antennas that protrude from the car is reduced, so the aesthetic appearance is not spoiled.

(Description of Examples) Examples of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is an external perspective view of an automobile equipped with a radio control device for locking and unlocking automobile doors according to the present invention;
FIG. 2 is a block diagram showing an embodiment of the receiver of the apparatus of the present invention. In FIGS. 1 and 2, the same members as those in FIGS. 3 to 5 are given the same reference numerals, and redundant explanation will be omitted.

What is different in Figure 1 from Figure 3?

A car 1 is equipped with a radio receiving antenna 2 and a telephone transmitting/receiving antenna 3, but a remote control receiving antenna 4 is not installed.

The structure of the transmission a5 is the same as the conventional one, but the carrier frequency is selected to be higher than the radio broadcasting frequency band or the telephone transmission/reception frequency band.

Furthermore, the receiver 20 shown in FIG. 2 is different from the receiver 20 shown in FIG. is input to the radio receiver or telephone transceiver 22, and the high frequency signal from the transmitter Ia5 is input to the tuning circuit 13 of the receiver 20.

In this way, the high frequency carrier wave for transmitting the PIN code can be selected by the distributor 21 from the antennas 2.3 for other uses and input to the receiver 20, and the antenna 2.3 for other uses can be used for remote control reception. The antenna 4 can also be used, and there is no need to separately install the remote control receiving antenna 4.

(Effects of the Invention) As explained above, according to the automobile door locking/unlocking wireless control device of the present invention, a distributor is provided in the radio receiving antenna or the telephone transmitting/receiving antenna, and the radio broadcasting frequency band or The PIN code is transmitted using a carrier wave with a frequency higher than the telephone transmission/reception frequency band, and the high frequency from the transmitter is input to the receiver using a distributor to lock/unlock the lock/unlock. This can also be used as a conventional remote control receiving antenna, eliminating the need for a separate remote control receiving antenna, which makes the device as a whole cheaper.

In addition, the number of antennas protruding from the car is reduced, resulting in an excellent effect that the aesthetic appearance is not spoiled.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an automobile equipped with a radio control device for locking and unlocking automobile doors according to the present invention, and FIG.
It is a block diagram showing one embodiment of the receiver of the device of the present invention,
FIG. 3 is an external perspective view of an automobile equipped with a conventional wireless control device for locking and unlocking automobile doors, FIG. 4 is a block diagram of a transmitter, and FIG. 5 is a block diagram of a receiver. The block diagram would be 1: automobile, 2: radio receiving antenna, 3: telephone transmitting/receiving antenna, 5: transmitter, 12.20: receiver, 21: distributor. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A preset PIN code is transmitted from a transmitter, the PIN code is received by a receiver installed in the car, and an actuator is operated in accordance with this PIN code to lock the vehicle.
In a radio control device for locking/unlocking a car door, a distributor is provided in a radio receiving antenna or a telephone transmitting/receiving antenna, and the transmitter transmits the password using a carrier wave having a higher frequency than the radio broadcasting frequency band or the telephone transmitting/receiving frequency band. A wireless control device for locking and unlocking a car door, characterized in that a code is transmitted and the high frequency signal is input to the receiver by the distributor.