CN201255982Y - Display with user detection function - Google Patents
Display with user detection function Download PDFInfo
- Publication number
- CN201255982Y CN201255982Y CNU200820141872XU CN200820141872U CN201255982Y CN 201255982 Y CN201255982 Y CN 201255982Y CN U200820141872X U CNU200820141872X U CN U200820141872XU CN 200820141872 U CN200820141872 U CN 200820141872U CN 201255982 Y CN201255982 Y CN 201255982Y
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- Prior art keywords
- display
- human body
- circuit
- control circuit
- power supply
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Abstract
The utility model discloses a display functioning in user detection, and aims to provide a display which can detect users or viewers through a detector and can be automatically turned off without viewers, thereby achieving the purpose of energy conservation. A switch control circuit is respectively connected with a working voltage output end of a display power circuit and a working voltage input end of an electronic circuit inside the display, and a detection signal output end of an infrared human body detection sensor is connected with an input control end of the switch control circuit. The display can detect users or viewers through the detector, controls on-off of the display with the detection results, and can be automatically turned off without viewers, thereby achieving the purpose of energy conservation, and prolonging the service life of the display.
Description
Technical field
The utility model relates to a kind of display of the user's of having detecting function.
Background technology
Increasingly serious along with energy problem, a large amount of products with power saving function and environment-friendly function has been born.Display is a product commonly used during people work and live, and in use, after the user left, display still was in open state, caused a large amount of waste of electric energy.And display is in user mode for a long time, has also reduced the serviceable life of display.
The utility model content
The utility model is in order to overcome weak point of the prior art, to provide a kind of and find by detector whether user or beholder are arranged, closing display automatically when nobody watches, thereby reach the display of energy-conservation purpose.
The utility model is achieved through the following technical solutions:
A kind of display with user's detecting function, comprise display power supply circuit and display interior electronic circuit, it is characterized in that, also comprise infrared human body acquisition sensor and ON-OFF control circuit, described ON-OFF control circuit is connected with the operating voltage output terminal of display power supply circuit and the operating voltage input end of display interior electronic circuit respectively, and the detectable signal output terminal of described infrared human body acquisition sensor is connected with the input control end of ON-OFF control circuit; Described human body detection sensor is connected with the display power supply circuit.
Described ON-OFF control circuit is made up of triode and adjustable divider resistance, the base stage of described triode is connected with the detectable signal output terminal of described infrared human body acquisition sensor, the emitter of described triode is connected with the operating voltage output terminal of display power supply circuit, and the collector of described triode is connected with the operating voltage input end of display interior electronic circuit by adjustable divider resistance.
The utlity model has following technique effect:
Display of the present utility model can find whether to have user or beholder by detector, use result of detection to control the switch of display, can when nobody watches, close display automatically, thereby reach purpose of energy saving, and can prolong the serviceable life of display.
Description of drawings
Fig. 1 is the circuit theory diagrams that the utlity model has the display of user's detecting function.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
The display that the utlity model has user's detecting function is the improvement of carrying out on existing display basis, between original display power supply circuit and display interior electronic circuit, be provided with ON-OFF control circuit, the opening and closing of the output signal gauge tap circuit of infrared human body acquisition sensor, the switch of control display power supply.The display circuit schematic diagram that the utlity model has user's detecting function as shown in Figure 1, comprise display power supply circuit, display interior electronic circuit, infrared human body acquisition sensor and ON-OFF control circuit, described ON-OFF control circuit is connected with the operating voltage output terminal of display power supply circuit and the operating voltage input end of display interior electronic circuit respectively, and the detectable signal output terminal of described infrared human body acquisition sensor is connected with the input control end of ON-OFF control circuit.Described human body detection sensor is connected with the display power supply circuit, is powered to human body detection sensor by the display power supply circuit.
Wherein, ON-OFF control circuit can be used existing control circuit with switching function.In order to simplify circuit structure, ON-OFF control circuit in the present embodiment is made up of triode and adjustable divider resistance, the base stage of described triode is connected with the detectable signal output terminal of described infrared human body acquisition sensor, the emitter of described triode is connected with the operating voltage output terminal of display power supply circuit, and the collector of described triode is connected with the operating voltage input end of display interior electronic circuit by adjustable divider resistance.Adjustable divider resistance is used for the adjusting of parameter.
Infrared human body acquisition sensor (the PIR detector claims the infrared thermal releasing sensor again) can be that the infrared signal between the 8-12um changes the reception conversion with wavelength.And human body is generally spent 37 because constant body temperature is all arranged, so can send the infrared ray about specific wavelength 10UM, is positioned at just within the detector investigative range.When the infrared human body acquisition sensor detected nobody use display, ON-OFF control circuit was closed display.When selecting triode for use, low level signal is delivered to the base stage of triode, makes the triode can not conducting, thereby, make the display power supply circuit can not be the display interior power electronics, display is closed, thereby reaches purpose of energy saving.
Although the disclosed display that relates to a kind of user's of having detecting function has been carried out special description with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (2)
1, a kind of display with user's detecting function, comprise display power supply circuit and display interior electronic circuit, it is characterized in that, also comprise infrared human body acquisition sensor and ON-OFF control circuit, described ON-OFF control circuit is connected with the operating voltage output terminal of display power supply circuit and the operating voltage input end of display interior electronic circuit respectively, and the detectable signal output terminal of described infrared human body acquisition sensor is connected with the input control end of ON-OFF control circuit; Described human body detection sensor is connected with the display power supply circuit.
2, the display with user's detecting function according to claim 1, it is characterized in that, described ON-OFF control circuit is made up of triode and adjustable divider resistance, the base stage of described triode is connected with the detectable signal output terminal of described infrared human body acquisition sensor, the emitter of described triode is connected with the operating voltage output terminal of display power supply circuit, and the collector of described triode is connected with the operating voltage input end of display interior electronic circuit by adjustable divider resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820141872XU CN201255982Y (en) | 2008-09-09 | 2008-09-09 | Display with user detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820141872XU CN201255982Y (en) | 2008-09-09 | 2008-09-09 | Display with user detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255982Y true CN201255982Y (en) | 2009-06-10 |
Family
ID=40739308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820141872XU Expired - Fee Related CN201255982Y (en) | 2008-09-09 | 2008-09-09 | Display with user detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255982Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257528A (en) * | 2020-02-11 | 2020-06-09 | 北京知天地环境科技有限公司 | Automatic detection and early warning device for water quality comprehensive toxicity |
-
2008
- 2008-09-09 CN CNU200820141872XU patent/CN201255982Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257528A (en) * | 2020-02-11 | 2020-06-09 | 北京知天地环境科技有限公司 | Automatic detection and early warning device for water quality comprehensive toxicity |
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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: 20090610 Termination date: 20100909 |