CN201639690U - Device for limiting watching television at short distance - Google Patents
Device for limiting watching television at short distance Download PDFInfo
- Publication number
- CN201639690U CN201639690U CN2010201183971U CN201020118397U CN201639690U CN 201639690 U CN201639690 U CN 201639690U CN 2010201183971 U CN2010201183971 U CN 2010201183971U CN 201020118397 U CN201020118397 U CN 201020118397U CN 201639690 U CN201639690 U CN 201639690U
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- television
- shell
- circuit
- ultrasonic probe
- ultrasonic
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- Expired - Fee Related
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Abstract
The utility model relates to a device for limiting watching a television, in particular to a device for limiting watching the television at a short distance. The device comprises a television shell and a television display screen, wherein the television shell is internally provided with a television brightness control circuit; the television shell is provided with an ultrasonic probe and internally provided with an ultrasonic detection circuit; and the ultrasonic probe, the ultrasonic detection circuit and the television brightness control circuit which are sequentially electrically connected together. The utility model has reasonable and compact structure and convenient use, can detect the distance of watching the television by people through the ultrasonic probe; and in addition, the television brightness control circuit can enable the screen of the television to be in a blank screen state when a limited distance is exceeded so as to compel people not to watch the television at the short distance, therefore the effect of protecting eyesight is achieved.
Description
One, technical field
The utility model relates to restriction and watches television equipment, is that television equipment is closely watched in a kind of restriction.
Two, background technology
When seeing TV, a lot of people like closely watching, if and often see closely that TV will cause great injury to eyesight, child particularly, owing to there are not enough judgments, when seeing program such as cartoon, tend to closely watch, if and the head of a family stays out or not obstruction in time, child's eyesight will slowly descend so that myopia.
Three, summary of the invention
The utility model provides a kind of restriction closely to watch television equipment, has overcome the deficiency of above-mentioned prior art, and it can effectively solve can't limit the problem that people closely see TV.
The technical solution of the utility model realizes by following measure: television equipment is closely watched in a kind of restriction, comprises tv shell and television display screen; The television set intednsity circuit is installed in tv shell; Ultrasonic probe is installed on tv shell, the ultrasonic listening circuit is installed in tv shell, ultrasonic probe, ultrasonic listening circuit and television set intednsity circuit are electrically connected in regular turn.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can be electrically connected with time delay circuit between above-mentioned ultrasonic listening circuit and the television set intednsity circuit.
Above-mentioned ultrasonic probe can be positioned on the tv shell of television display screen below.
Above-mentioned ultrasonic probe can be positioned on the tv shell of television display screen top.
Above-mentioned ultrasonic probe can be positioned on the tv shell on television display screen left side or right side.
The utility model reasonable and compact in structure; easy to use; can detect the distance that the people watches TV by ultrasonic probe; when surpassing limiting distance; the television set intednsity circuit can make the television screen blank screen; thereby force people closely to watch TV, reached the effect of vision protection.
Four, description of drawings
Accompanying drawing 2 is the circuit connection diagram of the utility model most preferred embodiment.
Coding in the accompanying drawing is respectively: 1 is tv shell, and 2 is television display screen, and 3 is the television set intednsity circuit, and 4 is ultrasonic probe, and 5 are the ultrasonic listening circuit, and 6 is time delay circuit, and 7 is the people.
Five, embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete execution mode according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this restriction closely watches television equipment to comprise tv shell 1 and television display screen 2; Television set intednsity circuit 3 is installed in tv shell 1; Ultrasonic probe 4 is installed on tv shell 1, ultrasonic listening circuit 5 is installed in tv shell 1, ultrasonic probe 4, ultrasonic listening circuit 5 and television set intednsity circuit 3 are electrically connected in regular turn, wherein, television set intednsity circuit 3 and ultrasonic listening circuit 5 are existing known circuit.
Can closely watch television equipment to make further optimization and/or improvements to above-mentioned restriction according to actual needs:
As shown in Figure 2, be electrically connected with time delay circuit 6 between ultrasonic listening circuit 5 and the television set intednsity circuit 3, like this, when the people is seeing that TV is after the regular hour, television display screen 2 is the meeting blank screen, avoid taking place people 7 and walk the problem that out-of-date television display screen 2 will blank screen, wherein, time delay circuit 6 is existing known circuit.
As shown in Figure 1, the height of placing at home according to television set, ultrasonic probe 4 is positioned on the tv shell 1 of television display screen 2 belows, perhaps, ultrasonic probe 4 is positioned on the tv shell 1 of television display screen 2 tops, perhaps, ultrasonic probe 4 is positioned on the tv shell 1 on television display screen 2 left sides or right side.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: at first the ultrasonic signal of ultrasonic listening circuit 5 generations is sent to ultrasonic probe 4, when the distance in ultrasonic probe 4 detects 1.5 meters in the place ahead has people 7, send the blank screen signal to ultrasonic listening circuit 5, ultrasonic listening circuit 5 sends to the blank screen signal delay circuit 6 again to postpone to handle, through after the delay in 15 seconds to 30 seconds the blank screen signal being sent to television set intednsity circuit 3, under the effect of television set intednsity circuit 3, make television display screen 2 blackening and can't watch, when the people leave prohibit see distance after television display screen 2 return to original brightness.
Claims (5)
1. television equipment is closely watched in a restriction, comprises tv shell and television display screen; The television set intednsity circuit is installed in tv shell; It is characterized in that ultrasonic probe is installed on the tv shell, the ultrasonic listening circuit is installed in tv shell, ultrasonic probe, ultrasonic listening circuit and television set intednsity circuit are electrically connected in regular turn.
2. television equipment is closely watched in restriction according to claim 1, it is characterized in that being electrically connected with time delay circuit between ultrasonic listening circuit and the television set intednsity circuit.
3. television equipment is closely watched in restriction according to claim 1 and 2, it is characterized in that ultrasonic probe is positioned on the tv shell of television display screen below.
4. television equipment is closely watched in restriction according to claim 1 and 2, it is characterized in that ultrasonic probe is positioned on the tv shell of television display screen top.
5. television equipment is closely watched in restriction according to claim 1 and 2, it is characterized in that ultrasonic probe is positioned on the tv shell on television display screen left side or right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183971U CN201639690U (en) | 2010-02-25 | 2010-02-25 | Device for limiting watching television at short distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183971U CN201639690U (en) | 2010-02-25 | 2010-02-25 | Device for limiting watching television at short distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639690U true CN201639690U (en) | 2010-11-17 |
Family
ID=43084195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201183971U Expired - Fee Related CN201639690U (en) | 2010-02-25 | 2010-02-25 | Device for limiting watching television at short distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102521948A (en) * | 2011-12-19 | 2012-06-27 | 深圳Tcl新技术有限公司 | Method and device for controlling close-range TV view |
| DE102019004832A1 (en) * | 2019-07-10 | 2021-01-14 | Diehl Ako Stiftung & Co. Kg | Monitoring system for an electronic device |
-
2010
- 2010-02-25 CN CN2010201183971U patent/CN201639690U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102521948A (en) * | 2011-12-19 | 2012-06-27 | 深圳Tcl新技术有限公司 | Method and device for controlling close-range TV view |
| DE102019004832A1 (en) * | 2019-07-10 | 2021-01-14 | Diehl Ako Stiftung & Co. Kg | Monitoring system for an electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140225 |