CN200941652Y

CN200941652Y - Vision protector for watching TV

Info

Publication number: CN200941652Y
Application number: CNU200620106524XU
Authority: CN
Inventors: 余瑞雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-03
Filing date: 2006-08-03
Publication date: 2007-08-29
Anticipated expiration: 2016-08-03

Abstract

The utility model provides a TV sight protector,mainly used for the sight protection when the youngers are watching TVs. The utility model mainly solves the problem that most youngers like to close the TVs when they are watching TVs, accordingly protects the eyes of the youngers. The TV sight protector comprises a detector and a buzzer and is characterized in that the protector also comprises a controller and a current sensor. The detector, the buzzer as well as the current sensor are respectively connected with the controller, the current input end of the TV is connected with the current sensor, the TV signal source is connected with the input end of the controller, and the signal output end of the controller is connected with the signal input end of the TV. When the youngers are watching TVs, the utility model can timely remind the youngers of keeping away from the TVs, thereby, effectively protecting the sight as well as the mental and physical health of the youngers.

Description

The TV vision protector

[technical field]

The utility model relates to the alarm set of a kind of human body near TV, particularly closely watches TV at children and the device reminded.

[background technology]

Television set has become inalienable part in people's life now, but television set is when playing, screen can send some harmful rays, especially closely watch TV for a long time, cause the contraction of muscle that eyeball is inside and outside easily, cause eye socket, eyeball distending pain, conjunctival congestion, even the dimness of vision, cause eyesight to descend at last, Here it is usually said " TV myopia ".In addition, have a large amount of electrostatic charges on video screen, it has dust agglutination.If closely watch TV, the face that dust can the transmission directive people that excuse me changes and injures eyes and skin.Modern Family all is the television set more than 29 cun basically, and program rich and varied makes usually selfless the watching of children.If the untimely safeguard procedures of taking will badly influence children's eyesight and physical and mental health.Look into Chinese patent, a publication number is CN1612588A, and name is called the application for a patent for invention of " TV vision protector ", discloses following content: " a kind of TV vision protector, it is provided with human body detection amplifying circuit and delay control circuit; It is characterized in that when human body when the television set, the human body detection amplifying signal that the human body detection amplifying circuit produces can make delay control circuit produce time-delay, report to the police and indicate, until the action of last control circuit television set is dealt with (as shutdown) in this process when human body during away from TV, detectable signal disappears automatically.”。Though this technical scheme has solved the problem of closely watching TV and reporting to the police, but also exist other problem: the processing of shutdown is made in the control circuit action to television set after the indication of reporting to the police, the frequent switch of the power supply of television set, very big to the The Service Life of Television infringement, cause the damage of television set easily, and because it adopts passive heat to release the infra-red detection signal, when the time is long slightly in face of the people stands in television set, the human body detection amplifying circuit will lose efficacy, cause the result that can not report to the police, its stability and accuracy are relatively poor.

[utility model content]

In view of the deficiency that background technology exists, the technical problems to be solved in the utility model provides and a kind ofly The Service Life of Television is not produced the high television set vision protector of any influence and good stability and accuracy.

In order to solve the problems of the technologies described above; the utility model adopts following technical scheme to realize: a kind of TV vision protector; have detector, buzzer; it is characterized in that this protector also comprises a controller and current sensor; described detector, buzzer and current sensor are electrically connected with controller respectively; the current input terminal of its television set links to each other with described current sensor; and TV signal source links to each other with the input of controller, and the signal output part of controller links to each other with the signal input part of television set.

After the utility model adopts detector and controller, the detection accuracy of signal is greatly improved,, just can stably detects signal as long as the people stands in the investigative range of detector; After adopting current sensor; and with current sensor be connected with controller; its TV signal source is all passed through the control of controller; after the warning; if children are not away from TV; the pattern of then taking to cut off TV signal is controlled picture, television set is not produced any influence, has protected the useful life of television set.When the utility model is seen TV children, can remind children to watch timely, thereby effectively protect children's eyesight and physical and mental health away from television set.

Further, described detector has probe, support, and described probe is rack-mount by a housing.

Described controller is provided with the distance adjustment switch, to regulate the detection range of detector.

[description of drawings]

Further describe each relevant details of the present utility model below more in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Among the figure, the 1-probing shell; The 2-probe; The 3-support; The 4-sucker; The 5-connecting line; 6-TV set power socket; The 7-220V power interface; The 8-controller housing; The 9-LED indicator light; The 10-tv signal input; The 11-TV signal output end; 12-probe signal input; 13-distance adjustment switch.

[embodiment]

As shown in Figure 1; this TV vision protector has detector, buzzer; this protector also comprises a controller and current sensor; described detector, buzzer and current sensor are electrically connected with controller respectively; the current input terminal of its television set links to each other with described current sensor; and TV signal source links to each other with the input 10 of controller, and the signal output part 11 of controller links to each other with the signal input part of television set.Described detector has probe 2, support 3, and described probe 2 is installed on the support 3 by a housing 1, and support 3 is installed on the sucker 4, during use, on the television set that sucker 4 can be placed.After probe 2 is installed on the support 3 by a universal joint again, rotate on level and the vertical direction, its angle that horizontally rotates is 60 °～120 ° again, and the angle of vertical rotation is 30 °～60 °; The angle of its level detection is 60 °～120 °, and the angle of vertical sounding is 30 °～60 °.Described controller housing 8 is provided with distance adjustment switch 13, to regulate the detection range of detector.According to the size of television set, adjustable range by-pass cock 13, the distance that vision protector is surveyed has five shelves adjustable, and it is respectively: 0.5m, 1.0m, 1.5m, 2.0m, 2.5m.The precision of its adjusting can reach 1 centimetre.

This TV vision protector is automatically to open along with the start of television set under default situations, also can be on the controller of vision protector manual open and close vision protector function.

Whether current sensor is to detect television set to start shooting, thereby determines whether master controller is opened.

The electric current of the starting current that current sensor is set during, and the electric current during less than the television set operate as normal greater than the television set resting state.

The main controller power supply of vision protector directly is inserted in the 220V civil power, and the power supply of television set is inserted on the main controller of vision protector.During the television set resting state, the electric current of television set is through over-current sensor, and current sensor can be sensed less than starup current, and vision protector is not worked.During television boot-strap, the electric current of television set is through over-current sensor, at this moment current sensor sense television set starup current less than television set dormancy electric current, the vision protector probe is started working, the signal that vision protector is surveyed begins effectively.If vision protector detects human body in the effective monitoring scope that sets; vision protector will be after three seconds acousto-optic or picture and text report to the police once; if continuous three warnings are invalid, with other vision signals such as positive closing CCTV cable TV signal, AV and S cross-talks.When human body withdrawed from coverage scope that the TV vision protector sets after one second, other vision signal work such as CCTV cable TV signal, AV and S cross-talk will be recovered automatically.

In the utility model, as shown in Figure 2, what its controller adopted is Pic16c54c computer singlechip chip, and computer detects RB1 automatically during start does not have the current sensor logical signal, promptly detects high level or low level, if do not have, detects RB1 repeatedly; If have, RB0 and RA0 output high level drive two relays respectively by two triodes and open CCTV cable TV signal and AV or other vision signals, and RB4 cable TV and AV or other vision signal LED light are bright.Whether next step detects RB6 the vision protector logical signal, if do not have, and cycle detection RB6 repeatedly; If have, RB4 and RB7 alternately export high level point shiny red and blue led indicator light, to show the light warning.Cycle detection RB6 in light warning in three seconds effectively, repeatedly; After three seconds, the prompting warning was invalid, RB2 exports high level, buzzer is sent reach the audible alarm in a second, three sound repeatedly report to the police invalid down, with RB0 and RA0 output low level, drive two cut-off CCTV cable TV signals and AV or other vision signal respectively by two triodes, make television set blue screen or snow occur, RB4 cable TV and AV or other vision signal LED light do not work; If the RB6 logical signal disappeared after the second, RB0 and RA0 output high level, open CCTV cable TV signal and AV or other vision signal by 2 relays of 2 9013 (triode) difference, the TV function is normally watched, RB4 cable TV signal and AV or other vision signal LED light are bright.

Claims

1, a kind of TV vision protector; have detector, buzzer; it is characterized in that this protector also comprises a controller and current sensor; described detector, buzzer and current sensor are electrically connected with controller respectively; the current input terminal of its television set links to each other with described current sensor; and TV signal source links to each other with the input of controller, and the signal output part of controller links to each other with the signal input part of television set.

2, according to the described TV vision protector that gets of claim 1, it is characterized in that described detector has probe, support, described probe is rack-mount by a housing.

3, TV vision protector according to claim 1 and 2 is characterized in that described controller is provided with the distance adjustment switch.