JPH08214233A - Television receiver with security function - Google Patents

Abstract

PURPOSE: To make it possible to use this television(TV) receiver with a security function also for home security by fixing an optical sensor to the TV receiver and turning on/off the receiver while interlocking with night light. CONSTITUTION: In the case of using the TV receiver as a security function, a security function of a microcomputer 4 is turned on and night time for driving the receiver by external light is set up in the microcomputer 4. When an illuminator is turned on by a timer or the like at night, an output from a sensor 1 is compared with reference voltage 3 by a comparator 2, and when the illuminator is in prescribed brightness or more, the lighting state is inputted to the microcomputer 4, a transistor 5 is turned on, a relay 6 is driven and, a main power supply circuit 7 is turned on. Consequently an at-home state can be simulated by automatically turning on/off a TV even at the time of going out for a medium or long period.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a built-in function for automatically turning on / off the home security for home security when going out for a long term. It concerns John receivers.

[0002]

2. Description of the Related Art As one conventional method of home security in the United States, a television receiver with a built-in program timer (hereinafter referred to as a television) is used, but it is turned on and off only once a day. It was impossible.

[0003]

With the above-described conventional structure, since the power switch can be turned on and off only once a day, there is a possibility that it may be detected as being out. Therefore, as a method of home security, the fact that a home lighting is turned on and off using a timer that can be turned on and off several times a day is used, and a function that can be turned on and off by external light is built into the TV. Then, by setting the program timer and its function to operate when going out for a medium to long term, the program timer automatically turns on and off during the day, and at night it turns on the TV in conjunction with lighting.
It is possible to turn it off and make you feel at home.

[0004]

In order to achieve the above object, a television receiver with a security function of the present invention has an optical sensor mounted on the front surface of a television, and the output of the optical sensor is provided with a switching circuit such as a comparator. It is designed to feed back to a microcomputer (hereinafter referred to as a microcomputer) via a TV and turn the TV on and off. Further, since this function can be set not to operate by the microcomputer, it can be turned off at home.

[0005]

With the above construction, the present invention can be viewed as a normal television when at home and used as a security device when going out.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A circuit according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a circuit diagram of a television receiver with a security function according to an embodiment of the present invention. In FIG.
1 is an optical sensor that is attached to the front of the TV to detect external light, 2 is a comparator that compares the output of the optical sensor 1 with a reference voltage 3, and outputs when the external light is above a certain brightness, 4 is the output of comparator 2 Is input and controls the security function of the television, 5 is a transistor whose on / off is controlled by the microcomputer 4, 6 is a relay driven by the transistor 5, 7 is a main power supply circuit operated by the relay 6, and 8 is It is a standby power supply circuit that supplies power to the optical sensor 1, the comparator 2, the reference voltage 3, the microcomputer 4, and the relay 6 regardless of the main power supply circuit 7.

When used as a normal television, the security function of the microcomputer 4 is turned off. When the switch of the remote controller or the television main body is turned on, the microcomputer 4 drives the relay 6 by the transistor 5 and controls the main power supply circuit 7 to turn on the power supply.

When using as a security function,
The security function of the microcomputer 4 is turned on, and the night time to be operated by outside light is set in the microcomputer 4 so that it is not turned on when it is not necessary due to the brightness of daytime. When the light is on during night time, the output of the sensor 1 that detects external light is applied to the comparator 2 and compared with the reference voltage 3, and the output that becomes HIGH (or LOW) at a certain brightness or higher is input to the microcomputer 4. , The microcomputer 4 turns on the transistor 5 and the relay 6
The main power supply circuit 7 is turned on via. As a result, the main power supply of the TV can be automatically turned on and off, and even when going out for a medium to long term, it is possible to make the user feel at home.

[0009]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, as a method of home security, in a market like the United States where a home lighting is turned on and off using a timer that can be turned on and off several times a day, You can use the TV for security.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a television receiver with a security function according to an embodiment of the present invention.

[Explanation of symbols]

 1 Optical Sensor 2 Comparator 3 Reference Voltage 4 Microcomputer 5 Transistor 6 Relay 7 Main Power Supply Circuit 8 Standby Power Supply Circuit

Claims (1)

[Claims] 1. A television receiver having an optical sensor mounted on the front surface thereof and having a built-in function capable of setting ON / OFF by external light.