KR19990012835U - Automatic on / off of TV power in absence - Google Patents

Abstract

The present invention relates to a power automatic on / off control method by a timer in a color television receiver. Especially, when the user goes out for a long time, the timer function is automatically counted and the power is turned on by each time zone. Disclosed is an automatic on / off device for a television power source in the absence of turning on / off and recognizing an outsider as if there is a person to prevent outside intrusion. When the user switches on a television having a stored voice signal, a high frequency signal is applied to the tuner circuit through an antenna, and the tuner circuit unit converts the high frequency signal into an intermediate frequency and applies it to the intermediate frequency amplifier to amplify the image detector. And a video signal and audio signal are detected and output by the audio detector. In the above process, the microcomputer counts the time when the power of the television is switched on by the timer function. If there is no input from the buttons of the remote control and the television for the set time, the voice memorized in the memory unit is output at regular intervals and then goes out for a long time. In the city, it is possible to prevent unnecessary external invaders by recognizing that there are people from outsiders.

Description

Automatic on / off of TV power in absence

The present invention relates to a power automatic on / off control method by a timer in a color television receiver. More specifically, the timer function is automatically counted when the user goes out for a long time and the power is supplied according to the time zone. The present invention relates to an automatic on / off device of a television power source in the absence of turning on / off and recognizing the presence of a person to prevent external intrusion.

1 is a block diagram of a conventional method for automatically turning off a television power supply in the absence of an AC input terminal 10, 12, a transformer 14, a power supply switching circuit 16, a first regulator 18, a second regulator ( 20 and the microcomputer 22. T1 of the transformer 14 is a primary side of the transformer, T2 is a secondary side for supplying power to each television, and T3 is a secondary side of the transformer 14 to supply power so that the microcomputer 22 always operates. It is to. In addition, the first regulator 18 rectifies and generates 5V of the AC power input through the secondary side T3 of the transformer 14, and the second regulator 20 rectifies the AC power output through the power switching circuit 16. And constant voltage. The power supply switching circuit 16 is a switching arc for switching power in accordance with a control signal output from the microcomputer, and A, B, and C are power output terminals for supplying power for each television.

2 is a flowchart illustrating a conventional method for automatically turning off the television power in the absence of the present invention, the first process of initializing the set on / off time and the time after the key is not pressed and the on / off state of the set, and executing the initialization process. And a second step of checking whether the timer is on after counting the current clock, and a third step of checking whether the time since the key is not pressed when one day (24 hours) has elapsed when the timer is on in the second step is checked. And a fourth step of checking that the set is turned off when 1 day has been reached in the third process, the on-clock is set to 0, and if the day is not reached, whether the set is on / off time. A fifth step of checking the power on / off key and other key inputs by receiving a key input when the set is not on / off time of the set; and turning on / off the set of on / off state when the power is turned on in the fifth step Since not pressed A sixth process of clearing the time and turning on the set in simultaneous operation with the on time of the fourth process; and turning off the on / off state of the set when the power is off key in the fifth process and the key is not pressed. The seventh step of clearing the time of the set and simultaneously turning off the set in the off-time of the fourth step; when the key is not other keys in the fifth step; The eighth step of checking whether the set on / off state is on and the first time when the set on / off state is not in the set on state; Changing the set on / off time, timer on / off state, etc. and displaying them on-screen results in the ninth process of executing the general functions of the television when the relevant key is pressed. It is.

In the case of the general color television configured as described above, the auto timer off function is operated as follows.

When AC power is supplied to the set, the power is supplied to the microcomputer, and the screen does not come out.However, the microcomputer is initially input in the process (30) so that the set on time, off time (A, B), N time, and the current time become 0. Also set the ON / OFF state of the set to 0. The microcomputer 22 counts the clock in the process of 32. However, the timer on / off in the initial state is also set to the off state. In step 34 of the initial state, the timer is not on, so the key is prepared to accept the key in step 42 of the input key. At this time, if the power on key is input in step (44), N is cleared to 0 in step (46). Then set the set to (48) and set the ON clock to 1. The clock continues to count. When the set is on, pressing another key checks whether another key is pressed in step 56. In step 58, it is checked whether the set is in the on state when the key is another key. At this time, in step 60, N is cleared to 0, and the related operation is performed. In this case, the set on time (A), the set off time (B), and the timer on / off are set in step 62.

When the timer enters the ON state (34), whether or not the N clock is more than one day (24 hours) is equal to A in the process (36), the set is automatically turned on, and the ON state is set to 1 again. The set is then turned off if the current clock is equal to B in the process (40). However, if you press any key, N = 0 will be turned on and off automatically by the timer, but if you do not press the key, N will continue to count. If N is greater than 1 day (that is, if no key is pressed for a day) The initial state of checking the input key immediately without comparing the set on time (A) and the set off time (B) even if the timer is turned on and the ON clock is set to 0. It becomes

In step 44, when the power is not on, check whether the power is turned off. If the power is turned off, N is cleared in step 52, and ON is set to 0 in step 54, and the set is turned off. Therefore, if the user does not use it for a certain time (when there is no key input for a certain time), it is regarded as going out, and it is prevented from being automatically turned on / off even if the timer is in the on state.

However, in the prior art as described above, when the user goes out for a long time, the timer function can automatically stop the on / off driving to reduce power consumption due to the driving of the color television. There is a problem that can not prevent unnecessary intruders due to quietness.

The present invention was devised to solve the above problems, and the object of the present invention is to turn on / off the television every hour when the timer checks the non-input status of the television when it goes out for a long time. By outputting the memorized voice, it is to provide an automatic on / off device of the television power supply in the absence to prevent unnecessary intruders when going out for a long time.

1 is a block diagram of a conventional off-TV power supply.

2 is a flow chart by the conventional apparatus for turning off the television power supply in the absence.

3 is a block diagram of an automatic on / off device of a television power source in absence in accordance with the present invention;

4 is a flowchart of an automatic on / off device of a television power supply in the absence of the present invention.

Explanation of symbols for main parts of the drawings

100: tuner circuit 110: intermediate frequency amplifier

120: image detector 130: voice detector

140: image processing unit 150: audio processing unit

160: microcomputer 170: memory unit

180: D / A converter 190: switching unit

200: CRT driver 210: voice amplifier

In order to achieve the above object, the present invention includes a tuner circuit unit for converting a high frequency signal received through an external antenna into an intermediate frequency; An intermediate frequency amplifier connected to the tuner circuit and amplifying an intermediate frequency applied from the tuner circuit; A video signal detector connected to the intermediate frequency amplifier and detecting a video signal from the intermediate frequency amplifier; A voice signal detection unit connected to the intermediate frequency amplifier and detecting a voice signal from the intermediate frequency amplifier; An image processor connected to the image detector and configured to process an image signal applied from the image detector; A CRT driver and a CRT connected to the image processor and configured to display a signal applied from the image processor to the CRT; A voice processor connected to the voice detector and configured to process a voice signal applied from the voice detector; A microcomputer connected to the tuner circuit unit, the image processor and the audio processor, and controlling the tuner circuit unit, the image processor and the audio processor; A memory unit connected to the microcomputer and outputting data memorized by a control signal of the microcomputer; A D / A converter connected to the memory unit and converting a digital signal applied from the memory unit into an analog signal; A switching unit connected to the voice processing unit and the D / A converter, and switching the voice signal output from the voice processor and the voice signal output from the D / A converter; Provided is an automatic on / off device for an absent television power source, which is connected to the switching unit and comprises a speaker for amplifying the voice signal switched by the switch and a speaker for outputting the voice signal amplified by the voice amplifier.

According to the present invention, when the television having a timer function is switched on, a high frequency signal is applied to the tuner circuit through the antenna, and the microcomputer senses the on signal of the tuner circuit and the power supply. When the microcomputer detects that the television is switched on, the microcomputer counts the time by the timer function. When the buttons of the remote control and the television detect the input signal within the set time, the process of detecting the button input signals of the remote control and the television is repeated from the power-on switching operation. Will output

Hereinafter, the present invention with reference to the accompanying drawings as follows.

3 is a block diagram schematically showing an automatic on / off device of the television power supply in the absence according to the present invention.

Referring to FIG. 3, the automatic on / off of the television power supply in the absence will be described. A high frequency signal received through an external antenna is applied to the tuner circuit unit 100, and the tuner circuit unit 100 is applied through an antenna. This will convert the signal to an intermediate frequency. An intermediate frequency amplifier 110 is connected to the tuner circuit 100, and the intermediate frequency amplifier 110 amplifies an intermediate frequency applied from the tuner circuit 100. The image detector 120 and the voice detector 130 are connected to the intermediate frequency amplifier 110, and the image detector 120 detects a video signal from the intermediate frequency amplifier 110 and the voice detector 130. Detects a voice signal from the intermediate frequency amplifier 110.

An image processor 140 is connected to the image detector 120, and the image processor 140 processes an image signal applied from the image detector 120. The CRT driver 200 is connected to the image processor 140, and the CRT driver 200 drives the image signal processed by the image processor 140 into a signal suitable for being displayed on a television and displays the same on the CRT.

Meanwhile, a voice processor 150 is connected to the voice detector 130, and the voice processor 150 processes a voice signal applied by the voice detector 130, and a switching unit 190 is provided to the voice processor 150. Connected.

The tuner circuit unit 100, the image processor 140, and the audio processor 150 are connected to the microcomputer 160, and the microcomputer 160 counts a time after the power is switched on. The memory unit 170 is connected to the microcomputer 160, and the memory unit 170 counts the time set in the microcomputer 160 by a timer function, and when the time exceeds the set time, the voice signal stored in the memory unit 170. Will print The memory unit 170 is connected to the D / A converter 180, and the D / A converter 180 converts the digital voice signal output from the memory unit 170 into an analog voice signal. In addition, the switching unit 190 is connected to the D / A converter 180, and the switching unit 190 is applied to the voice signal applied by the voice processor 150 described above and the D / A converter 180. The voice signal stored in memory is switched. The voice amplifier 210 is connected to the switching unit 190, and the voice amplifier 210 amplifies the voice signal switched by the switching unit 190 and outputs it to the speaker.

4 is a flowchart illustrating an automatic on / off device of television power supply in absence, a first process of checking power on / off by a timer function, and a second process of counting time when power is turned on in the first process; A third step of confirming an input from a button unit of a remote controller and a television in the second step, a fourth step of confirming whether a set time has elapsed in the third step, and a fourth step of When the set time has elapsed, a fifth process of outputting the voice signal stored in the memory unit 170 at a predetermined interval time is performed.

The operation in the automatic on / off device of the television power supply in the absence of the above-described flow chart is as follows.

First, in step 160a, whether the power is applied or not is detected, if the power is ON, the following process is performed, and if the power is OFF, the previous process is performed. If the power is ON in step 160a, step 160b is performed. In step 160b, the time is counted from the time point at which the power is turned on. In step 160c, during the counting of time, the controller checks the presence or absence of an input from a button on the remote control or the television, and returns to the first process if there is an input. If there is an input in step 160c, step 160d is performed. At step 160d, the setting time is checked. If the time set in step 160d has elapsed, the process is restarted from step 160b. If the time set in step 160d has not elapsed, step 160e is performed. In operation 160e, the voice signal stored in the memory unit 170 is output for each set time period.

As can be seen from the above description, the present invention relates to the automatic on / off of the power of the television. When the television user is switched on by the timer function due to the TV user going out for a long time, the microcomputer counts the set time. When the time has elapsed, the power of the TV is automatically turned on / off at a certain time interval, and the voice signal stored in the memory unit is output when it is in the on state. There is an effect to stop.

Claims (2)

A tuner circuit unit 100 for converting a high frequency signal received through an external antenna into an intermediate frequency; An intermediate frequency amplifier 110 for amplifying an intermediate frequency applied from the tuner circuit unit 100; An image detector 120 detecting an image signal from the intermediate frequency amplifier 110; An image processor 140 for processing an image signal output from the image detector 120; A CRT driver 200 for driving a signal output from the image processor 140, that is, a signal suitable for being displayed on the CRT, and a CRT for displaying an image signal; A voice detector 130 for detecting a voice signal from the intermediate frequency amplifier 110; A voice processor 150 for processing a voice signal output from the voice detector 130; A microcomputer 160 for controlling the tuner circuit unit 100, the image processor 140, and the audio processor 150; A memory unit 170 for outputting a memorized voice signal when a predetermined time elapses when the power is switched on in the microcomputer 160; A D / A converter 180 for converting a digital voice signal output from the memory unit 170 into an analog voice signal; A switching unit 190 for switching the output of the voice signal output from the voice processing unit 150 and the memory signal stored in the D / A converter 180; Automatic on / off device of television power absent, characterized in that consisting of a speaker and a voice amplifier for amplifying the switched voice signal output from the switching unit (190). In the automatic on / off of the television power supply in absence, A first step of checking 160a that the television power supply by the timer function is switched on; A second process of counting time (160b) when the power is switched on in the first process; A third process of confirming input (160c) from the button portion of the remote control and the television based on the time counting of the second process; A fourth step of checking (160d) whether or not the time set in the third step has elapsed; And a fifth process of outputting the voice signal stored in the memory unit 170 at a predetermined interval when the time set in the fourth process has elapsed.