JPH0444791Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention of the present application transmits a specific code using light,
This invention relates to a remote control keyless system that performs predetermined control when it is confirmed that the object that received this code matches a pre-stored code.

(Prior art) In recent years, locking devices for house doors, passenger car doors, etc. are being remotely locked using remote control keys using infrared light or radio waves.
Lock devices that can be unlocked have become popular.
These devices lock and unlock doors at a remote location according to the user's wishes by operating a transmitter at hand. and,
This device eliminates the hassle of inserting a key into the keyhole, making it very convenient for unlocking the door when carrying something or in the dark.

(Problem that the invention aims to solve) However, in order to attach the receiver to an existing door, it is necessary to replace the door lock device and install a new receiver, making the selection of the installation location and the work complicated. It was a hassle.

Therefore, a device ( Special table 1986-500428
Publication No. 2) was also proposed. However, the light that enters the surveillance glass is divided into light for monitoring visitors outside and light that illuminates the light receiving section, and the amount of each light is smaller than the amount of light that enters the lens. The amount of light has become considerably attenuated, so the light emitted from the transmitter is attenuated, making it difficult for the control device to work properly.Also, when it is dark outside, the amount of light is further attenuated, making it difficult to monitor visitors. , there was a problem where monitoring could not be performed.

(Purpose) The present invention was made in view of the above problems, and the introduction of light to the light receiving section on the receiver side is
Using the existing peephole that was originally attached to the door,
To provide a keyless system that transmits light without attenuating the amount of light, whether monitoring visitors outside or introducing light from a transmitter.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a control unit that converts the code set by the code setting unit into a transmission signal, and an amplifier that current amplifies the converted transmission signal. A transmitter consists of a light emitting element that outputs an amplified transmission signal and a transmission switch that supplies power to each of these parts, and a transmitter that receives the transmission signal and compares the reception signal with a predetermined code to convert both signals. A lens installed on the door, and a receiver that outputs a control signal to activate the actuator when it is determined that the A housing having a monitoring hole formed therein; a reflecting mirror rotatably provided on the housing about a rotation axis perpendicular to the optical axis of the lens between the lens and the monitoring hole; and the housing. an operation for selectively positioning a mirror surface of the reflecting mirror between a state in which the mirror surface of the reflecting mirror faces the lens at a predetermined angle and a state in which it is parallel to the optical axis; and a light receiving element provided on the reflection axis with the reflection mirror tilted at a predetermined angle.

(Function) As configured as described above, according to the device of the present invention, the light receiving section provided in the receiver can be used as both the viewing window and the light receiving section by using the viewing window of the door. It can be used both as a viewing window and as a light receiver.

That is, normally, when a transmitter emits light converted from a transmission signal from the outside, a portion of the light passes through a lens and reaches a reflecting mirror. Since the reflecting mirror is provided at an angle with respect to the optical axis, the totally reflected light is bent by a predetermined angle and reaches the light receiving section without being attenuated, thereby activating the receiver.

In addition, when monitoring the outside condition, by operating the operation unit, the reflecting mirror becomes parallel to the optical axis, and the light that passes through the lens reaches the monitoring hole without attenuation. The status of can be monitored.

(Example) Next, the illustrated example will be specifically described.
First, FIG. 1 is a block diagram showing the overall configuration. In the figure, 1 is a key as a transmitter, which includes a microcomputer 3 (hereinafter referred to as CPU) that stores a ROM 2 that stores a pre-registered password, an amplifier (transmission amplifier) 4 that amplifies the signal, and a signal sent to the outside. It consists of a light emitting element 5 that outputs infrared light, a power source 6, and a push button 7 that is a transmitting switch.

Next, 10 is a receiver, which is installed in or near the door locking device. Peep window 1
1 has a light receiving element 12 arranged as a light receiving section,
Receives infrared light signals transmitted from the key. A CPU 1 that stores an amplifier (reception amplifier) 13 that amplifies the received infrared light and a ROM 14 that stores the same code as the previously registered code.
5, an actuator 16 controlled by a control signal from the CPU 15, and a door lock device 17 driven by this actuator to lock and unlock the door.

FIG. 3 shows an embodiment of the present invention, and shows a viewing window 11.
The light entering from the lens 11a is reflected by a reflecting mirror 12d provided inside the viewing window 11 and is normally sent toward the light receiving element 12 without attenuating the amount of light.When you want to check for visitors, When the pushbutton 12e is pressed, the reflector 12d rotatably provided in the housing 19 rotates around its pivot, allowing the outside image to pass through the monitoring hole 20 into the field of view without attenuating the amount of light entering from the lens 11a. It was designed so that it would come in. The pressing operation of the push button 12e pushes down the end of the reflecting mirror 12d which is supported so as to rotate, so the reflecting mirror 12d is rotated about the supporting shaft.
The light that enters through the lens 11a of the viewing window is sent toward the eyes. The case where the door is actually locked and unlocked using this transmission key 1 will be explained.

By pressing (ON) the power switch 7, which is a push button, voltage is applied to each power terminal of the CPU 3 and the transmission amplifier 4, and the CPU 3 outputs an electric signal corresponding to the code set at the time of shipment. The transmission amplifier section amplifies the electrical signal. The amplified electrical signal is converted into an infrared light signal by the light emitting element and transmitted. Therefore, when the switch 7 is pressed while pointing the transmission key in the direction of the door to be locked or unlocked, for example the door 18 in FIG. , light receiving element 1
2 into an electrical signal. This signal is amplified by an amplifier 13 and compared with a password code preset in the ROM 14. When the code from the transmission key and the password match, the CPU 2 gives an activation signal to the actuator 16. The actuator 16 thereby drives a locking device or the like to lock or unlock.

(Effects) As is clear from the description of the embodiments above, the present invention uses the existing fitting hole for the viewing window as the light receiving section, so there is no need to provide a new window hole for the light receiving section. . Therefore, installation work is easy and space can be used effectively.

In addition, the present invention allows the light that enters the lens to be guided to the light receiving unit and to the eyes without attenuating it, making it less likely that the receiver will malfunction due to insufficient power in the transmitter. It is also possible to extend the life of the It also allows for clear monitoring even when it is dark outside.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of the present invention. FIG. 2 is a schematic diagram illustrating the present invention, and FIG. 3 is an embodiment of the present invention. 1... Transmission key, 5... Light emitting element, 7... Push button, 10... Receiver, 3, 15... Microcomputer (CPU), 11a... Lens, 12
... Light receiving element, 12a ... Reflector, 12e ... Push button, 19 ... Housing, 20 ... Monitoring hole.

Claims (1)

[Claims for Utility Model Registration] A control section that converts a preset code into a transmission signal, an amplifier that amplifies the current of the converted transmission signal, a light emitting element that outputs the amplified transmission signal, and a power supply to each of these sections. a transmitter that receives the transmitted signal and compares the received signal with a predetermined code, and outputs a control signal that activates the actuator when it is determined that both signals match. A receiver comprising: a lens provided on the door; a housing provided with a monitoring hole provided at the rear of the lens; the lens and the monitoring device; a reflecting mirror rotatably provided in the housing about a rotating axis perpendicular to the optical axis of the lens between the hole; and a reflecting mirror that extends loosely through the housing and has one end abutting an end of the reflecting mirror. , an operation unit for selectively positioning a mirror surface of the reflecting mirror between a state in which it faces the lens at a predetermined angle and a state parallel to the optical axis; A keyless system characterized by comprising a light receiving element provided above.