CN201726459U - Human body induction radiation-proof healthy television - Google Patents
Human body induction radiation-proof healthy television Download PDFInfo
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- CN201726459U CN201726459U CN2010201585908U CN201020158590U CN201726459U CN 201726459 U CN201726459 U CN 201726459U CN 2010201585908 U CN2010201585908 U CN 2010201585908U CN 201020158590 U CN201020158590 U CN 201020158590U CN 201726459 U CN201726459 U CN 201726459U
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- television set
- human body
- television
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Abstract
The utility model discloses a human body induction radiation-proof healthy television, which comprises a television main body, wherein a pyroeletric infrared sensor is arranged on a front panel of the television main body and is connected to a pyroeletric infrared control circuit, and the other end of the pyroeletric infrared control circuit is electrically connected with a television power control circuit arranged in the television main body. The utility model can sense whether people move within the range of the sensor near the television in a real-time way, so as to realize automatic television turning on/off through human body induction, therefore the health of people especially children is protected, and the eyes of children are protected from electromagnetic radiation.
Description
Technical field
The utility model relates to technical field of television sets, especially a kind of human body sensing radiation proof health type television set based on the PTR sensing technology.
Background technology
In the daily life, there are a lot of children when seeing TV, all to lean on television set very near, like in face of television set, playing.Long-time in-plant contact and near television set, television set can send electromagnetic radiation, child's body development affected, and also the in-plant contact television set of child, also can cause negative influence to eyesight, cause approximate easily.
The utility model content
The purpose of this utility model is in order to overcome the defective that prior art exists, to provide a kind of when child sees that TV leans on television set closer, thereby the closing television machine is protected the healthy of child automatically, prevents that human body is subjected to the health type television set of electromagnetic radiation.
For realizing above purpose, the utility model has been taked following technical scheme: a kind of human body sensing radiation proof health type television set, include the television set main body, on described television set main body front panel, be provided with pyroelectric infrared sensor, this pyroelectric infrared sensor is connected on the rpyroelectric infrared control circuit, and the rpyroelectric infrared control circuit other end TV set power control circuit interior with being arranged on the television set main body is electrically connected.
Utilize Fresnel Lenses special optical principle, produce " blind area " and " highly sensitive district " of an alternate in pyroelectric infrared sensor the place ahead, to improve the detection receiving sensitivity of transducer; As people (in 1 meter of television set) when the human body sensing radiation proof health type television set, the infrared ray that human body sends just constantly alternately enters " highly sensitive district " from " blind area ", make the infrared signal that receives with dynamic impulse form input, can discharge amplitude thereby strengthen it.By pyroelectric infrared sensor the infrared radiation that receives is transformed into faint voltage signal then, the field effect transistor in being contained in probe outwards exports the rpyroelectric infrared control circuit to after amplifying; After series of processes such as the amplification of rpyroelectric infrared control circuit, integer, produce and close machine control signal, and deliver in the remote control switch machine circuit of television set, make the television set shutdown; Beyond the people left 1 meter of television set, pyroelectric infrared sensor detected the infrared signal of sending less than human body, and the rpyroelectric infrared control circuit produces the start control signal after 10 seconds of time-delay, and the remote control switch machine circuit by television set makes television boot-strap.Thereby realized human body sensing automatic switch television set, protected people, especially child's is healthy.
Front end at described pyroelectric infrared sensor is provided with Fresnel Lenses.Adopt Fresnel Lenses to produce " blind area " and " highly sensitive district " of an alternate in transducer the place ahead, can effectively improve the sensitivity and the anti-interference of test.
Described pyroelectric infrared sensor is a pir sensor.
Described rpyroelectric infrared control circuit adopts the LP8072C control chip.
The utility model compared with prior art; has following advantage: near the ranges of sensors zone the sensing television set whether people's activity is arranged in real time; thereby realized human body sensing automatic switch television set; people have been protected; especially child's is healthy; protection child's eyes prevent to be subjected to radiation.
Description of drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is the LP8072C control chip pin arrangements schematic diagram of present embodiment rpyroelectric infrared control circuit;
Fig. 3 is a present embodiment LP8072C control chip interior block diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.
Embodiment:
As shown in Figure 1, a kind of human body sensing radiation proof health type television set, include the television set main body, on television set main body front panel, be provided with pyroelectric infrared sensor, this pyroelectric infrared sensor is connected on the rpyroelectric infrared control circuit, and the rpyroelectric infrared control circuit other end TV set power control circuit interior with being arranged on the television set main body is electrically connected.
Front end at pyroelectric infrared sensor is provided with Fresnel Lenses.Pyroelectric infrared sensor is a pir sensor.The rpyroelectric infrared control circuit adopts the LP8072C control chip.
Pir sensor is the core of rpyroelectric infrared control circuit, and at present transducer kind on the market is more, and that adopt in the present embodiment is the RE200B that Japanese Nicera company produces.This transducer detectivity height, detection range can reach more than 10 meters, and its depression angle can reach 86 °, and the horizontal view angle can reach 120 °.The infrared light of the specific wavelength (10um) that only human body is discharged because of it is the most responsive, thereby misoperation is minimum.In its search coverage during with the frequency activity of 0.3～3Hz, pir sensor just can generate the faint signal of telecommunication, delivers to then in the LP8072C chip, carries out processing and amplifying as the people.
There is one deck plated film on the pir sensor surface, and this plated film can only pass through human body infrared (wavelength 10um), and with other interference signal filtering.In use, can not arbitrarily touch and wiping, otherwise can cause that plated film damages, interference signal also can enter transducer, causes the project misoperation.
Should be short more good more when on pcb board, pir sensor being installed in addition with the line of LP8072C chip, can reduce interference.
See also shown in Figure 2ly, be the pin arrangements schematic diagram of control chip LP8072C: table one is that the pin function of LP8072C is described:
The function narration of LP8072C
● operating voltage is 4.0V～5.5V (DC), and operating current is less than 700uA;
● external oscillation resistance, electric capacity;
● output can drive relay or controllable silicon;
● built-in two stage amplifer, Gain Adjustable;
● the control time is adjustable;
● built-in voltage stabilizing output 3.1V directly drives pir sensor;
● integrated zero passage detection, the AC power synchronous triggering reduces power pollution;
● the DIP16 encapsulation.
| Sequence number | Title | Functional description | Sequence number | Title | Functional description |
| 1 | UOUT1 | Amplifier output 1 | 9 | CDS | CDS detects |
| 2 | IN1 | Amplifier positive input 1 | 10 | TRIAC | TRIAC output |
| 3 | IP1 | The negative input 1 of amplifier | 11 | RELAY | RELAY output |
| 4 | Vref | Reference voltage | 12 | ZCD | Zero passage detection |
| 5 | GND | Ground | 13 | VDD | Power supply |
| 6 | TB | System clock | 14 | IN2 | The negative input 2 of amplifier |
| 7 | TEST | Test | 15 | IP2 | Amplifier positive input 2 |
| 8 | TC | Timer clock | 16 | UOUT2 | Be transported into output 2 |
Table one
See also shown in Figure 3ly, the PIR induced signal amplifies through inside, if judge that triggering is arranged, and amplifier output high level.At this time the timing testing circuit picks up counting, and in full certain internal clocking cycle of meter, saltus step is high (can avoid false triggering); Zero passage detection produces zero-crossing pulse when the AC power zero passage.1,2,3 when being high simultaneously, o controller is exported a positive pulse, the control external circuit; The internal clocking of R, the C decision LP8072C that 6 pin are connect, F=(1 ± 20%)/1.1RC, TRIAC triggered time width is 2/F; The cycle of 8 R that pin connects, C decision LP8072C timer internal.Regulate R, C and can export the time length of control, can require to regulate according to reality.
When in the search coverage of nobody at pir sensor when movable, pir sensor does not have signal of telecommunication output, the low level about the 11 pin output 0V of LP8072C; Triode ends, and relay does not have electric current to flow through, and normally closed interlock is connected, and operating conditions of TV set is constant; As in the search coverage of people at pir sensor during with the frequency activity of 0.3～3Hz, pir sensor just can generate the faint signal of telecommunication, deliver to 2 pin of LP8072C, after inner low noise operational amplifier amplifies, by the high level about the 11 pin output 5V of LP8072C; The triode conducting, relay power, normally closed interlock disconnects, the television set shutdown.Thereby realized human body sensing automatic switch television set, protected people, especially child's is healthy.
Above-listed detailed description is at the specifying of the utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.
Claims (4)
1. human body sensing radiation proof health type television set, include the television set main body, it is characterized in that: on described television set main body front panel, be provided with pyroelectric infrared sensor, this pyroelectric infrared sensor is connected on the rpyroelectric infrared control circuit, and the rpyroelectric infrared control circuit other end TV set power control circuit interior with being arranged on the television set main body is electrically connected.
2. human body sensing radiation proof health type television set as claimed in claim 1, it is characterized in that: the front end at described pyroelectric infrared sensor is provided with Fresnel Lenses.
3. human body sensing radiation proof health type television set as claimed in claim 1 or 2, it is characterized in that: described pyroelectric infrared sensor is a pir sensor.
4. human body sensing radiation proof health type television set as claimed in claim 3 is characterized in that: described rpyroelectric infrared control circuit adopts the LP8072C control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201585908U CN201726459U (en) | 2010-04-08 | 2010-04-08 | Human body induction radiation-proof healthy television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201585908U CN201726459U (en) | 2010-04-08 | 2010-04-08 | Human body induction radiation-proof healthy television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201726459U true CN201726459U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201585908U Expired - Fee Related CN201726459U (en) | 2010-04-08 | 2010-04-08 | Human body induction radiation-proof healthy television |
Country Status (1)
| Country | Link |
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| CN (1) | CN201726459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716569A (en) * | 2013-12-19 | 2014-04-09 | 吴根佑 | Television set intelligent induction shutdown device and television set |
-
2010
- 2010-04-08 CN CN2010201585908U patent/CN201726459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716569A (en) * | 2013-12-19 | 2014-04-09 | 吴根佑 | Television set intelligent induction shutdown device and television set |
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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: 20110126 Termination date: 20120408 |