CN1215285A - Automatic switching off device for TV set - Google Patents
Automatic switching off device for TV set Download PDFInfo
- Publication number
- CN1215285A CN1215285A CN 97118996 CN97118996A CN1215285A CN 1215285 A CN1215285 A CN 1215285A CN 97118996 CN97118996 CN 97118996 CN 97118996 A CN97118996 A CN 97118996A CN 1215285 A CN1215285 A CN 1215285A
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- signal
- range sensor
- television set
- circuit
- head
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Abstract
The present invention relates to an automatic turn-off device for TV set. Said invented device possesses a distance sensor with an emitting head capable of emitting detection signal to the place ahead of TV receiver and a receiving head capable of receiving the detection signal reflected back after run into the TV viewer. When the distance from the TV receiver to the TV viewer is closer, the signal received by receiving head of the distance sensor is passed through the control circuit to control TV set and turn off its power supply. Said invented device can be used for protecting child watching TV too close to TV from visual injury.
Description
The present invention relates to a kind of television set and automatically shut down device, this device is placed on the television receiver, the power line of television set links to each other in supply socket by it, the emitting head that is installed in the range sensor on this device to television receiver the place ahead with certain solid angle radiation detection signal, when running into the spectators that watch TV, this detectable signal is reflected, and received by the reception head of range sensor, the voltage signal that the signal that is received is inversely proportional to through amplitude of output and detection range behind the amplification and rectification circuit, this voltage signal sent in the comparator compare, to determine whether the distance that is detected the object distance television screen has surpassed the distance that limits, limit distance if surpass, just send control signal control television set power cutoff.This device is used to prevent cross near and vision injury that may cause apart from video screen when children from seeing TV.Owing to differentiate the power of reflected signal with comparator, so can pass through the size of the comparative voltage of adjusting comparator, regulate owing to spectators cross the shutoff distance of closely turn-offing television set apart from television screen.
When preventing the bigger television set of switch-off power, directly turn-off the injury that the TV set power supply circuit may bring to television set, also can be by the shutoff of former TV remote-control receiving system control television set.Because different television sets has different remote signal modes, therefore when implementing control, should at first remember by TV set controlled remote-controlled power switch signal, when perceiving spectators, crosses when near by range sensor then apart from television screen, send the infrared control signal of turn-offing television set, this signal is by the reflection of spectators' health, house and furniture or directly be emitted to television receiver, thereby turn-offs the power supply of television set.
Below in conjunction with accompanying drawing, further principle of the present invention is elaborated.
Figure one is the basic principle figure of automatic switching off device for TV set.The 3rd, television set, the 11st, automatic switching off device for TV set, the 8th, the TV set power latch, the 4th, the power plug of automatic switching off device for TV set, the 18th, the range sensor radiation head in the automatic switching off device for TV set, it gives off signal 2, the 12nd, the range sensor in the automatic switching off device for TV set receives head, it is received from the signal 6 that spectators 5 reflect, when spectators 5 apart from television set 3 during less than certain distance, range sensor in the automatic switching off device for TV set receives a signal of 12 outputs can control the power supply of automatic switching off device for TV set shutoff to television set 3, and television set 3 is turn-offed.Also can turn-off the infrared remote control mains switch of television set by infrared radiator 7 radiated infrared signals, television set 3 is turn-offed.
Figure two is theory diagrams of automatic switching off device for TV set.The 25th, the remote controller of Be Controlled television set 3, the 29th, the power supply of remote controller on ﹠ off switch, the 30th, the remote controller infrared radiator, pin 29, allow the remote control switch signal 33 of 30 radiation television sets 3, infrared remote receiver 31 in the automatic switching off device for TV set receives this switching signal, and with it through amplifying, after amplifying shaping, shaping circuit 32 sends into memory storage 28, like this when 28 are driven by read signal 21, same 33 duplicate remote control switch signals will be extracted out, and be admitted to buffer 27, amplifier 26, after infrared radiator 24 this switching signal is radiate, the final remote-controlled power switch that turn-offs television set 3 cuts off the work of television set.How describe read signal 21 below in detail produces: the range sensor radiation head 18 on the automatic switching off device for TV set to the place ahead of television set with certain solid angle radiation switch signal 2, this signal can be a ultrasonic signal, also can be other signal that can be used for range sensing (as reactance range sensing signal), when this switching signal touches spectators 5, health by spectators reflects, this reflex switch signal 6 reception in range sensor 12 reception, and be admitted to amplifying circuit 13, shaping circuit 14, by the road input of switch received signal of 14 outputs to comparator 15,15 the other end receives the comparison signal that comparison signal regulating circuit 16 is sent into simultaneously, this signal can be regulated by 17,14 and 16 send into 15 two path signal compares in 15, when the intensity of reflex switch signal 6 during greater than the intensity of comparison signal, pulse signal 21 of comparator output, just so-called read signal.Regulate 17 and can change comparative voltage, therefore also just can change the control level of comparator 15 output read signals, when spectators 5 are nearer apart from television set, this level height, when far away, this time level low, therefore adjust 17 command ranges that also just equal to have adjusted this automatic switching off device for TV set, this distance is exactly spectators apart from television set closely to a certain degree the time, requires automatic switching off device for TV set to turn-off the distance of television set.Another function of automatic switching off device for TV set is, read signal 17 is when sending into memory 28, simultaneously also be admitted to high-power electronic switch 23, it has cut off the power supply supply line 4 of television set 3 to the passage between the power input line 8 of television set, so television set is turned off.The 22nd, the power supply system of television set auto-power-off device.
Figure three is implementation columns.The 11st, automatic switching off device for TV set; the 18th, the range sensor radiation head of this switching off device; the 12nd, the range sensor of this switching off device receives head; the 2nd, the signal of the range sensor radiation head emission of this switching off device; the 6th, the range sensor of this switching off device receives the reflected signal from spectators 5 that head receives; the 7th, high power television machine remote control switch power supply infrared signal generator; when spectators 5 are near apart from television set 3 mistakes; reflected signal the last 6; 12 receive this stronger reflected signal after; control 7 emission infrared signals 35; wall 36 or object 37 reflection final the arrive television set infrared switch of this signal in the room receives 38; turn-off the power supply of television set, television set is quit work, therefore can play the protection children and watch TV programme excessively closely to cause damaging the problem of eyesight apart from television screen.The remote controller 25 of former television set sends the switching signal by power button 29 controls, photoelectric sensor 31 receives memory storage behind this signal, and under the control of the reflected signal 6 that spectators form, drive infrared transmitter 7 emissions in the automatic switching off device for TV set and can control the infrared signal 35,35 that television set 3 turn-offs and received and cut off TV set power switch by the infrared remote receiver on the television set 38.
Claims (3)
1. the present invention relates to a kind of television set and automatically shut down device; its essential characteristic is: this device is by the range sensor radiation head; range sensor receives head; range sensor received signal amplification and rectification circuit; comparative voltage takes place and regulating circuit; comparison circuit; TV remote-control mains switch radiation signal infrared sensor; memory circuit; the dynamo-electric source switch signal radiation of infrared television element; television set automatic power supply switch circuit is formed; wherein infrared sensor receives the remote control switch signal that the TV remote-control mains switch sends; and this signal of memory storage; when spectators are nearer apart from television set; spectators' health will be stronger the switching signal that radiated of range sensor radiation head reflex to range sensor and receive head; receive head and again this switching signal is sent to amplification; shaping circuit; through after the amplification shaping of amplification and rectification circuit; again this switching signal is sent to an input of comparison circuit; another adjustable comparison signal in input input road of comparison circuit; when switching signal is higher than comparison signal; pulse signal that is called as " read signal " of comparison circuit output; with this pulse signal control memory storage circuit; the tv remote control switch signal of former storage is taken out and amplification; be sent to infrared radiating element then; radiated infrared television set switching signal; television set is turn-offed; perhaps directly control TV set power switch; television set is turn-offed; near excessively to play the protection spectators apart from television set, the effect of injury spectators eyesight.
2. related in the claim 1 " ... range sensor radiation head, range sensor receive head ... ", its essential characteristic is: this range sensor is the ultrasonic distance transducer.
3, related in the claim 1 " ... range sensor radiation head, range sensor receive head ... ", its essential characteristic is: this range sensor is a reactance type element distances transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97118996 CN1215285A (en) | 1997-10-20 | 1997-10-20 | Automatic switching off device for TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97118996 CN1215285A (en) | 1997-10-20 | 1997-10-20 | Automatic switching off device for TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215285A true CN1215285A (en) | 1999-04-28 |
Family
ID=5175120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97118996 Pending CN1215285A (en) | 1997-10-20 | 1997-10-20 | Automatic switching off device for TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1215285A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100525414C (en) * | 2003-07-03 | 2009-08-05 | 皇家飞利浦电子股份有限公司 | A method of controlling an electronic device |
| CN101072293B (en) * | 2006-05-09 | 2010-06-09 | 深圳Tcl新技术有限公司 | Device and method for automatically regulating television screen display |
| US7995033B2 (en) | 2007-01-11 | 2011-08-09 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Power saving device for display |
| ITMI20100748A1 (en) * | 2010-04-30 | 2011-10-31 | Sergio Biacchi | DEVICE AND METHOD TO PROTECT THE PARTICULAR VIEW OF A CHILD THAT WATCHES TV |
| CN103197760A (en) * | 2013-03-06 | 2013-07-10 | 苏州云都网络技术有限公司 | Intelligent eyesight protection system |
| CN103616899A (en) * | 2013-11-29 | 2014-03-05 | 深圳Tcl新技术有限公司 | Method, control device and system for automatic adjustment of television display screen turning |
| CN104113717A (en) * | 2014-07-22 | 2014-10-22 | 宋廷斌 | Infrared induction television |
-
1997
- 1997-10-20 CN CN 97118996 patent/CN1215285A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100525414C (en) * | 2003-07-03 | 2009-08-05 | 皇家飞利浦电子股份有限公司 | A method of controlling an electronic device |
| CN101072293B (en) * | 2006-05-09 | 2010-06-09 | 深圳Tcl新技术有限公司 | Device and method for automatically regulating television screen display |
| US7995033B2 (en) | 2007-01-11 | 2011-08-09 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Power saving device for display |
| ITMI20100748A1 (en) * | 2010-04-30 | 2011-10-31 | Sergio Biacchi | DEVICE AND METHOD TO PROTECT THE PARTICULAR VIEW OF A CHILD THAT WATCHES TV |
| CN103197760A (en) * | 2013-03-06 | 2013-07-10 | 苏州云都网络技术有限公司 | Intelligent eyesight protection system |
| CN103616899A (en) * | 2013-11-29 | 2014-03-05 | 深圳Tcl新技术有限公司 | Method, control device and system for automatic adjustment of television display screen turning |
| CN104113717A (en) * | 2014-07-22 | 2014-10-22 | 宋廷斌 | Infrared induction television |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |