CN202267540U - Full-digital type human body infrared receiving processing circuit - Google Patents
Full-digital type human body infrared receiving processing circuit Download PDFInfo
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- CN202267540U CN202267540U CN2011203942904U CN201120394290U CN202267540U CN 202267540 U CN202267540 U CN 202267540U CN 2011203942904 U CN2011203942904 U CN 2011203942904U CN 201120394290 U CN201120394290 U CN 201120394290U CN 202267540 U CN202267540 U CN 202267540U
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- circuit
- human body
- process chip
- infrared receiving
- receiving processing
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Abstract
A full-digital type human body infrared receiving processing circuit comprises a PIR (passive infrared radiation) sensor circuit, an output driving circuit and a power source voltage-stabilizing circuit. The full-digital type human body infrared receiving processing circuit is characterized by comprising a microprocessor circuit with a microprocessing chip which is high in performance and low in power consumption and has an A/D (analog/digital) converting function, an output end of the microprocessor is connected with the input end of the output driving circuit, a VDDA (voltage drain digital analog) end of the microprocessor circuit is connected with a power end of the PIR sensor, a polarity matching capacitor is connected between the VDDA end of the microprocessor circuit and a common ground, and a matching capacitor is connected between an ACM (analog control module) of the microprocessor circuit and the common ground. The full-digital type human body infrared receiving processing circuit further comprises a photosensitive sensor circuit, wherein an output end of the photosensitive sensor circuit is connected with an input end of the microprocessing chip. PIR analog signals are directly inputted into the microprocessing chip for digital processing including converting the analog signals into digital signals and using software embedded into the microprocessing chip to recognize desired signals. A signal amplifying circuit can be omitted completely so that the circuit can be structurally simplified, and no external interference signals can be superposed with the PIR signals which are not processed by an external circuit. The full-digital type human body infrared receiving processing circuit is high in signal to noise ratio and also high in sensitivity and reliability.
Description
Technical field
The utility model relates to receiving circuit, particularly relates to the infrared receiving processing circuit of a kind of full digital human body.
Background technology
The existing perception human body self heat that utilizes sends the automatic control circuit that there is the people in the infrared signal detecting, passive infrared radiation (Passive Infrared Radiation, initialism the are PIR) sensor that adopts mostly.Because its weak output signals, need simulating signal be amplified with operational amplifier, again through comparator circuit identification, therefore, have that element is many, complicated circuit, be subject to disturb, sensitivity and the lower problem of reliability.
Summary of the invention
The utility model technical matters to be solved is the defective that remedies above-mentioned prior art, provides a kind of full digital human body infrared receiving processing circuit.
The technical matters of the utility model solves through following technical scheme.
The infrared receiving processing circuit of this full digital human body comprises passive infrared radiation pir sensor circuit, output driving circuit, and to said modules the power supply stabilization circuit of corresponding power supply is provided.
The characteristics of the infrared receiving processing circuit of this full digital human body are:
Be provided with microcontroller circuit; Said microcontroller circuit adopts has high performance analog/digital (Analog/Digital; Initialism is A/D) little process chip of the low-power consumption of translation function, said little process chip comprises the HY11P family chip, its input end AI0 is connected with the S end of said pir sensor; Its output terminal P2.2 is connected with the input end of said output driving circuit; Its vdd terminal is connected with the output terminal of said power supply stabilization circuit, and its VDDA end is connected with the power end of pir sensor, and with said public ground GND between be connected one and mate polar capacitor; Be connected a matching capacitance between its ACM end and the public ground GND, said coupling polar capacitor and said matching capacitance are used to A/D and change burning voltage is provided.Said pir sensor circuit adopts the strong little process chip of the direct input logic control ability of PIR simulating signal of S end way of output output to carry out digital processing; Comprise that carrying out A/D by said little process chip converts digital signal into; Realize logic control by the software identification useful signal that embeds said little process chip again, thoroughly remove signal amplification circuit, can simplify circuit structure; And the PIR signal is not handled through external circuit; The outside undesired signal that can not superpose, signal to noise ratio (S/N ratio) is high, and sensitivity and reliability are also high.
Be provided with the light sensor circuit of perception ambient light line strength; The output terminal of said light sensor circuit is an end of its major loop resistance in series; Be connected with the input end AI1 of said little process chip; With the detection sampling of the values of light that controls environment, the other end of its major loop resistance in series is connected with the VDDA of said little process chip end.
The technical matters of the utility model solves through following further technical scheme.
Also be provided with functional parameter circuit is set, said functional parameter is provided with circuit and comprises that induction sensitivity is provided with circuit, induction back output duration is provided with circuit and starts the light intensity of controlling automatically circuit is set.
Said induction sensitivity is provided with circuit; Comprise the VDDA end that is connected said little process chip and the adjustable induction sensitivity resistance between the public ground GND; The center tap of said adjustable induction sensitivity resistance is connected with the input end AI5 of said little process chip, is used to be provided with induction sensitivity.
Said induction back output duration is provided with circuit; Comprise the VDDA end that is connected said little process chip and the adjustable output duration resistance between the public ground GND; The center tap of said adjustable output duration resistance is connected with the input end AI6 of said little process chip, is used to be provided with induction back output duration.
The said startup light intensity of control automatically is provided with circuit; Comprise that the VDDA end that is connected said little process chip and the adjustable startup between the public ground GND control light intensity resistance automatically; The center tap that light intensity resistance is controlled in said adjustable startup automatically is connected with the input end P1.2 of said little process chip, is used to be provided with the light intensity that starts automatic control.
The technical matters of the utility model solves through following further again technical scheme.
Said pir sensor is to adopt S to hold the model of the way of output to be the pir sensor of D203S, to be provided with output resistance, the anti-interference capacitor that is connected in parallel between its output terminal S and the public ground.
Said light sensor is that model is the light sensor of XYC-PT3E850AC-A1, and the resistance of its major loop resistance in series is 100K Ω.
Said little process chip is that model is little process chip of HY11P41.
The appearance value of said matching capacitance is 0.1 μ F, and the appearance value of said coupling polar capacitor is 10 μ F.
Said output driving circuit is metal oxide semiconductor field effect tube (Metal Oxide Semiconductor Field Effect Transistor, initialism is a MOSFET) on-off circuit.
Said MOSFET is that model is the N-channel MOS FET of ST2302.
Said power supply stabilization circuit is the trifocal mu balanced circuit.
Said trifocal mu balanced circuit is that model is little power consumption three-terminal voltage-stabilizing chip of HT7136.
The resistance of said adjustable induction sensitivity resistance is 500K Ω.
The resistance of said adjustable output duration resistance is 500K Ω.
The resistance that light intensity resistance is controlled in said adjustable startup automatically is 500K Ω.
The resistance of said output resistance is 56K Ω, and the appearance value of said anti-interference capacitor is 0.1 μ F.
The utility model beneficial effect compared with prior art is:
Little process chip that the direct input logic control ability of the PIR simulating signal of the utility model is strong is carried out digital processing, comprises that carrying out A/D by little process chip converts digital signal into, again by the software identification useful signal that embeds little process chip; Thoroughly remove signal amplification circuit; Can simplify circuit structure, and the PIR signal is handled the undesired signal of the outside that can not superpose through external circuit; Signal to noise ratio (S/N ratio) is high, and sensitivity and reliability are also high.
Description of drawings
Fig. 1 is the circuit diagram of the utility model embodiment one;
Fig. 2 is the circuit diagram of the utility model embodiment two.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described.
Embodiment one
A kind of infrared receiving processing circuit of full digital human body as shown in Figure 1; Comprise adopt model be the pir sensor PIR1 of D203S pir sensor circuit 2, adopt model be the light sensor PT1 of XYC-PT3E850AC-A1 light sensor circuit 3, adopt model be little process chip U1 of HY11P41 microcontroller circuit 1, to adopt model be the output driving circuit 4 of the N-channel MOS FET Q1 of ST2302, and to said modules the employing model of corresponding power supply to be provided be the power supply stabilization circuit 5 of little power consumption three-terminal voltage-stabilizing chip U2 of HT7136.
Power supply stabilization circuit 5 comprises that model is little power consumption three-terminal voltage-stabilizing chip U2, filter capacitor C4, C5 and the C6 of HT7136.Outside input power supply DC+ is connected with the IN end of little power consumption three-terminal voltage-stabilizing chip U2; The GND end of little power consumption three-terminal voltage-stabilizing chip U2 is connected with outside input power supply DC-with public ground GND, and the OUT end of little power consumption three-terminal voltage-stabilizing chip U2 is connected with vdd terminal with the RST end of little process chip U1 respectively.
The output resistance R1 resistance of the pir sensor PIR1 of this embodiment is 56K Ω, and the appearance value of anti-interference capacitor C1 is 0.1 μ F; The resistance of light sensor circuit major loop resistance in series R2 is 100K Ω; The appearance value of matching capacitance C2 is 0.1 μ F, and the appearance value of coupling polar capacitor C3 is 10 μ F; The filter capacitor C4 of power supply stabilization circuit 5, the appearance value of C5 are 0.1 μ F, and the appearance value of filter capacitor C6 is 100 μ F; Resistance R 4 resistances of output driving circuit 4 are 100K Ω.
Embodiment two
A kind of infrared receiving processing circuit of full digital human body as shown in Figure 2; Basic composition is with embodiment one, and difference is to comprise that also functional parameter is provided with circuit 6: the light intensity that starts control automatically is provided with circuit, circuit is set induction back output duration and induction sensitivity is provided with circuit.
The light intensity that starts control automatically is provided with circuit; Comprise that the adjustable startup that the VDDA end that is connected little process chip U1 and the resistance between the public ground GND are 500K Ω controls light intensity resistance SVR3 automatically; Its center tap is connected with the input end P1.2 of little process chip U1, is used to be provided with the light intensity that starts automatic control.
Induction back output duration is provided with circuit; Comprise that the VDDA end that is connected little process chip U1 and the resistance between the public ground GND are the adjustable output duration resistance SVR2 of 500K Ω; Its center tap is connected with the input end AI6 of little process chip U1, is used to be provided with induction back output duration.
Induction sensitivity is provided with circuit; Comprise that the VDDA end that is connected little process chip U1 and the resistance between the public ground GND are the adjustable induction sensitivity resistance SVR1 of 500K Ω; Its center tap is connected with the input end AI5 of little process chip U1, is used to be provided with induction sensitivity.
The PIR simulating signal of this embodiment directly little process chip U1 of input is carried out digital processing; Comprise that carrying out A/D by little process chip U1 converts digital signal into; Again by the software identification useful signal that embeds little process chip U1; And combination is converted into the strength signal of ambient light by light sensor PT1 the information of the input of voltage signal; And the setting value that light intensity resistance SVR3, adjustable output duration resistance SVR2 and adjustable induction sensitivity resistance SVR1 are controlled in adjustable startup is automatically carried out logic control, output high-low level signal controlling output driving circuit 4.
Be used to be adjusted in the adjustable startup that begins control automatically under the how strong light and control light intensity resistance SVR3 automatically; The values of light of starting to control that the user is set converts the P1.2 end that analog voltage signal is input to little process chip U1 into; Carry out A/D conversion by little process chip U1 and become digital signal, supply subsequent logic control to use after adopting software processes again.
Be used to regulate the duration value that the adjustable output duration resistance SVR2 of output duration sets the user after responding to and convert the AI6 end that analog voltage signal is input to little process chip U1 into; Carry out A/D conversion by little process chip U1 and become digital signal, supply subsequent logic control to use after adopting software processes again.
Be used to regulate the induction sensitivity value that the adjustable induction sensitivity resistance SVR1 of induction sensitivity sets the user and convert the AI5 end that analog voltage signal is input to little process chip U1 into; Carry out A/D conversion by little process chip U1 and become digital signal, supply subsequent logic control to use after adopting software processes again.
Embodiment three
A kind of infrared receiving processing circuit of full digital human body that is used for safety device, the same embodiment of basic composition, difference is that output driving circuit 4 is the burglar alarm driving circuits that carry out respective design according to the request for utilization of practical application product.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.Those of ordinary skill for technical field under the utility model; Under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; And performance or purposes are identical, all should be regarded as belonging to the scope of patent protection that the utility model is confirmed by claims of being submitted to.
Claims (10)
1. the infrared receiving processing circuit of full digital human body comprises passive infrared radiation pir sensor circuit, output driving circuit, and to said modules the power supply stabilization circuit of corresponding power supply is provided, and it is characterized in that:
Be provided with microcontroller circuit; Said microcontroller circuit adopts little process chip of the low-power consumption with high-performance A/D translation function; Said little process chip comprises the HY11P family chip, and its input end AI0 is connected with the S end of said passive infrared radiation pir sensor circuit, and its output terminal P2.2 is connected with the input end of said output driving circuit; Its vdd terminal is connected with the output terminal of said power supply stabilization circuit; Its VDDA end is connected with the power end of pir sensor, and with said public ground between be connected one and mate polar capacitor, its ACM hold with public ground between be connected a matching capacitance;
Be provided with the light sensor circuit of perception ambient light line strength; The output terminal of said light sensor circuit is an end of its major loop resistance in series; Be connected with the input end AI1 of said little process chip, the other end of its major loop resistance in series is connected with the VDDA of said little process chip end.
2. the infrared receiving processing circuit of full digital human body as claimed in claim 1 is characterized in that:
Also be provided with functional parameter circuit is set, said functional parameter is provided with circuit and comprises that induction sensitivity is provided with circuit, induction back output duration is provided with circuit and starts the light intensity of controlling automatically circuit is set.
3. according to claim 1 or claim 2 the infrared receiving processing circuit of full digital human body is characterized in that:
Said induction sensitivity is provided with circuit, comprises the VDDA end that is connected said little process chip and the adjustable induction sensitivity resistance between the public ground, and the center tap of said adjustable induction sensitivity resistance is connected with the input end AI5 of said little process chip.
4. the infrared receiving processing circuit of full digital human body as claimed in claim 3 is characterized in that:
Said induction back output duration is provided with circuit; Comprise the VDDA end that is connected said little process chip and the adjustable output duration resistance between the public ground, the center tap of said adjustable output duration resistance is connected with the input end AI6 of said little process chip.
5. the infrared receiving processing circuit of full digital human body as claimed in claim 4 is characterized in that:
The said startup light intensity of control automatically is provided with circuit; Comprise that the VDDA end that is connected said little process chip and the adjustable startup between the public ground control light intensity resistance automatically, the center tap that light intensity resistance is controlled in said adjustable startup automatically is connected with the input end P1.2 of said little process chip.
6. the infrared receiving processing circuit of full digital human body as claimed in claim 5 is characterized in that:
Said pir sensor is to adopt S to hold the model of the way of output to be the pir sensor of D203S, to be provided with output resistance, the anti-interference capacitor that is connected in parallel between its output terminal S and the public ground.
7. the infrared receiving processing circuit of full digital human body as claimed in claim 6 is characterized in that:
Said light sensor is that model is the light sensor of XYC-PT3E850AC-A1.
8. the infrared receiving processing circuit of full digital human body as claimed in claim 7 is characterized in that:
Said little process chip is that model is little process chip of HY11P41.
9. the infrared receiving processing circuit of full digital human body as claimed in claim 8 is characterized in that:
Said output driving circuit is a metal oxide semiconductor field effect tube switch mosfet circuit.
10. the infrared receiving processing circuit of full digital human body as claimed in claim 9 is characterized in that:
Said power supply stabilization circuit is the trifocal mu balanced circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203942904U CN202267540U (en) | 2011-10-17 | 2011-10-17 | Full-digital type human body infrared receiving processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203942904U CN202267540U (en) | 2011-10-17 | 2011-10-17 | Full-digital type human body infrared receiving processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267540U true CN202267540U (en) | 2012-06-06 |
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ID=46158331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203942904U Expired - Lifetime CN202267540U (en) | 2011-10-17 | 2011-10-17 | Full-digital type human body infrared receiving processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911905A (en) * | 2017-12-08 | 2018-04-13 | 赵慧亮 | A kind of human body infrared ray receiving processing circuit and its processing method |
| GB2611331A (en) * | 2021-09-30 | 2023-04-05 | Sky Cp Ltd | Sensing circuit |
-
2011
- 2011-10-17 CN CN2011203942904U patent/CN202267540U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911905A (en) * | 2017-12-08 | 2018-04-13 | 赵慧亮 | A kind of human body infrared ray receiving processing circuit and its processing method |
| CN107911905B (en) * | 2017-12-08 | 2024-03-26 | 赵慧亮 | Human infrared receiving and processing circuit and processing method thereof |
| GB2611331A (en) * | 2021-09-30 | 2023-04-05 | Sky Cp Ltd | Sensing circuit |
| WO2023052775A1 (en) * | 2021-09-30 | 2023-04-06 | Sky Cp Limited | Pir sensing circuit for a consumer electronc device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |