CN211603576U - Low-power consumption infrared induction circuit module - Google Patents
Low-power consumption infrared induction circuit module Download PDFInfo
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- CN211603576U CN211603576U CN202020351167.3U CN202020351167U CN211603576U CN 211603576 U CN211603576 U CN 211603576U CN 202020351167 U CN202020351167 U CN 202020351167U CN 211603576 U CN211603576 U CN 211603576U
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Abstract
The utility model discloses a low-power consumption infrared induction circuit module, including infrared coding and decoding chip, infrared receiving head and infrared transmitting tube, infrared coding and decoding chip is provided with infrared transmitting pin and is connected with infrared transmitting tube, is provided with infrared receiving pin and is connected with the signal pin of infrared receiving head, is provided with digital signal output pin, infrared coding and decoding chip still is provided with mode control pin and enables control pin; the mode control pin is connected with an external control signal, and the enabling control pin is connected with a power input pin of the infrared receiving head to enable the infrared receiving head to be in an intermittent enabling state. The utility model discloses make infrared induction circuit module's low power dissipation, saved the electric energy.
Description
Technical Field
The utility model relates to an infrared induction technology field especially relates to a low-power consumption infrared induction circuit module.
Background
The infrared sensing circuit module is applied to infrared sensing equipment, such as a human body infrared recognizer, a human body infrared sensing switch and the like.
When the existing infrared sensing circuit module works, a power input pin (enabling pin) of an infrared receiving head is directly connected to a power supply, so that the infrared receiving head is in an enabling working state for a long time, when no signal is input from the outside, the infrared receiving head is also consuming electric energy and is not effectively utilized, and long-time electricity consumption causes high energy consumption of the infrared sensing circuit module and electric energy is wasted.
Therefore, the prior art has yet to be developed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a low power consumption infrared sensing circuit module, which aims to reduce the power consumption of the infrared sensing circuit module and save the electric energy.
In order to achieve the above object, the present invention provides the following technical solutions:
a low-power consumption infrared induction circuit module comprises an infrared encoding and decoding chip, an infrared receiving head and an infrared transmitting tube, wherein the infrared encoding and decoding chip is provided with an infrared transmitting pin connected with the infrared transmitting tube, an infrared receiving pin connected with a signal pin of the infrared receiving head, and a digital signal output pin,
the infrared coding and decoding chip is also provided with a mode control pin and an enabling control pin;
the mode control pin is connected with an external control signal, and the enabling control pin is connected with a power input pin of the infrared receiving head to enable the infrared receiving head to be in an intermittent enabling state.
The infrared receiving head comprises a power input pin 3, a grounding pin 2 and a signal pin 1;
the infrared coding and decoding chip is M53 in model and comprises pins P67, P66, VDD, P65, P64, P63, P62, P61, P60 and VSS pins, wherein:
the P60 pin is a power input pin 3 which enables the control pin to be connected with the infrared receiving head;
a P62 pin is a mode control pin SHUT for connecting external control signals;
the P64 pin is an infrared emission pin and is connected with an infrared emission tube;
the P65 pin is a signal pin 1 with an infrared receiving pin connected with an infrared receiving head;
the pin P67 is a digital signal output pin OUT for outputting signals;
the VDD pin is connected with a power supply;
the VSS pin is grounded;
the P63 pin is connected with the resistor R3 in series and then is grounded;
the P61 and P66 pins are suspended.
The pin P64 is connected with the cathode of the infrared emission tube D1, and the anode of the infrared emission tube D1 is connected with the power supply after being connected with the resistor R1 in series.
The P67 and VDD pins of the infrared coding and decoding chip are further connected with a filter capacitor C3, and the power input pin 3 of the infrared receiving head is further connected with a filter capacitor C2.
The model of the infrared receiving head is HS 0038B.
The utility model discloses an infrared induction circuit module of low-power consumption, through connecting the power input pin of infrared receiving head on the enable control pin of infrared encoding and decoding chip and the non-is directly even on the power, combine the mode control pin of infrared encoding and decoding chip simultaneously, make infrared receiving head be in intermittent type enable operating condition and the non-continuous enable operating condition, intermittent type enable operating condition is the intermittent type promptly and awakens up and long-time sleep, can reduce the consumption of whole infrared induction circuit module like this, save the electric energy.
Drawings
Fig. 1 is a schematic diagram illustrating a composition principle of a first embodiment of the low-power infrared sensing circuit module.
Fig. 2 is the circuit schematic diagram of the low power consumption infrared sensing circuit module of the present invention.
Fig. 3 is a schematic diagram of the state of the infrared receiving head in the sleep mode of the present invention.
Fig. 4 is a schematic diagram of the state of the infrared receiving head in sleep mode of the present invention.
Description of reference numerals:
100-circuit module, 10-infrared coding and decoding chip, 20-infrared receiving head and 30-infrared transmitting tube.
Detailed Description
The present invention is further described with reference to the following drawings and examples, which are not intended to limit the scope of the present invention.
Please refer to fig. 1, which is a schematic block diagram of a low power consumption infrared sensing circuit module 100 according to the present invention, including an infrared encoding and decoding chip 10, an infrared receiving head 20 and an infrared transmitting tube 30, wherein the infrared encoding and decoding chip 10 is provided with an infrared transmitting pin connected to the infrared transmitting tube 30, and a signal pin connected to the infrared receiving head 20 is provided with the infrared receiving pin, and the infrared encoding and decoding chip 10 is further provided with a digital signal output pin.
The infrared transmitting tube 30 is used for transmitting an infrared signal at regular time, and when the infrared receiving head 20 receives the infrared wireless signal, the infrared encoding and decoding chip 10 analyzes and processes the received infrared wireless signal, decodes the infrared wireless signal into a digital signal, and outputs the digital signal to the upper control unit through the digital signal output pin.
The utility model discloses infrared sensing circuit module 100's infrared coding and decoding chip 10 still is provided with mode control pin and enables control pin.
The mode control pin is connected with an external control signal, such as a control pin of an upper control unit. The enable control pin is connected to the power input pin of the infrared receiving head 20 so that the infrared receiving head 20 is in an intermittent enable state.
Specifically, as shown in fig. 2, the infrared receiving head 20 of the infrared sensing circuit module 100 of the present invention, that is, the PIR1, includes a power input pin 3, a ground pin 2, and a signal pin 1; the power input pin 3 enables and controls the infrared receiving head 20, and the signal pin 1 sends the signal received by the infrared receiving head 20 to the infrared encoding and decoding chip 10. Preferably, the infrared receiving head PIR1 of the utility model is of model HS 0038B.
The utility model discloses an infrared codec chip 10, U1's model is M53 promptly, including pin P67, P66, VDD, P65, P64, P63, P62, P61, P60, the VSS pin, wherein:
the pin P60 is an enable control pin and is connected with a power input pin 3 of the infrared receiving head PIR 1.
The pin P62 is the mode control pin SHUT for connection of external control signals. The external control signal is a high level or a low level input by the upper control unit, when a low level is input at the SHUT, the whole U1 is in the sleep mode, and when a high level is input at the SHUT, the whole U1 is in the wake mode.
The pin P64 is an infrared emission pin and is connected with the infrared emission tube 30, namely D1. Preferably, the utility model discloses infrared encoding and decoding chip 10's P64 pin connects infrared transmitting tube D1's negative pole, and infrared transmitting tube D1's positive concatenates resistance R1 back and connects power 3.3V, and infrared transmitting tube D1 uses low level drive like this, can save infrared encoding and decoding chip 10's consumption.
The pin P65 is an infrared receiving pin and is connected with the signal pin 1 of the infrared receiving head PIR 1.
The P67 pins are the digital signal output pin OUT to the external output signal.
The VDD pin is connected to a power supply of 3.3V.
The VSS pin is grounded.
The pin P63 is connected in series with the resistor R3 and then grounded. The resistor R3 protects the U1.
The P61 and P66 pins are suspended.
The specific working principle is as follows:
the utility model discloses an infrared encoding and decoding chip U1 of infrared induction circuit module 100 has two kinds of mode, sleep mode and awakening mode, and sleep mode and awakening mode pass through the mode control pin, and the upper control unit that P62 pin (SHUT) is connected controls promptly, and when the SHUT input low level, infrared encoding and decoding chip U1 is sleep mode, and when the SHUT input high level, infrared encoding and decoding chip U1 is awakening mode. The initial mode of the infrared coding and decoding chip U1 is a sleep mode.
In sleep mode, as shown in fig. 3:
in this mode, the operation mode of the ir codec chip U1 is that, with 300ms as a cycle, 2ms is woken up to the enable control pin in each cycle, that is, a high level is output to the P60 pin to supply power to the power input pin of the ir receiving head 20, so that the ir receiving head 20 is in an enable wake-up state to operate, and the remaining 298ms is a sleep time, at this time, the ir codec chip U1 outputs a low level to the P60 pin to make the ir receiving head 20 in a sleep state to turn off.
During the wake-up time, if the ir receiving head 20 does not receive valid data or data not conforming to the pulse width, the periodic cycle will be continued, and if the ir receiving head 20 receives valid data or valid data conforming to the pulse width, the external control signal will be enabled to input high level to the SHUT to enable the ir codec chip U1 to enter the wake-up mode. The continuous wake-up mode enables the ir receiving head 20 to continuously receive data until no valid data is received, and the ir receiving head 20 enters the sleep state and the wake-up state again in a periodic cycle.
In the wake mode, as shown in fig. 4:
in the sleep mode, within 2ms of the ir codec chip U1 sending a high-level wake-up signal to the ir receiving head 20, if the ir receiving head 20 receives a full low level or a valid data bit (HorL) conforming to the pulse width, it will trigger an external control signal to input a high level to the SHUT of the ir codec chip U1 and enter the wake-up mode, in the wake-up mode, the P60 pin of the ir codec chip U1 no longer sends 300ms wake-up and sleep pulse signals to the power input pin of the ir receiving head 20, but the P60 pin continuously sends a high-level wake-up signal to the ir receiving head 20 to ensure that the ir receiving head 20 is in a continuously wake-up state, and keeps continuously receiving data until no data is received or data not conforming to the pulse width is received, trigger the external control signal to input a low-level signal to the SHUT of the ir codec chip U1 and make the ir codec chip U1 enter the sleep mode, in this mode, ir receiving head 20 enters the sleep state and the awake state again in a periodic cycle.
The utility model discloses a low-power consumption infrared induction circuit module 100 awakens up and sleep for a long time and realize the effect that reduces the module consumption through infrared receiving head 20's intermittent type, has avoided the waste of the energy.
Preferably, the utility model discloses an infrared coding and decoding chip's P67 and VDD pin still are connected with filter capacitor C3, infrared receiving head's power input pin 3 still is connected with filter capacitor C2. The arrangement of the filter capacitors C2 and C3 avoids interference in signal input and output processes.
The utility model provides a low-power consumption infrared induction circuit module 100, through connecting infrared receiving head 20's power input pin on infrared encoding and decoding chip 10's enable control pin and not directly even on the power, combine infrared encoding and decoding chip 10's mode control pin simultaneously, make infrared receiving head 20 be in intermittent type enable operating condition and not last enable operating condition, intermittent type enable operating condition is the intermittent type awaken up and sleep for a long time promptly, can reduce the consumption of whole infrared induction circuit module like this, save the electric energy. The low-power infrared sensing circuit module 100 can utilize energy more effectively, greatly reduce energy waste and is more environment-friendly.
The above only for the purpose of clearly illustrating the examples of the present invention, not limiting the scope of the present invention, can't be exhausted to all the embodiments, all the concepts of the present invention, utilize the equivalent structure transformation of the content of the technical solution of the present invention, or directly/indirectly use in other related technical fields and are all included in the protection scope of the present invention.
Claims (5)
1. A low-power consumption infrared induction circuit module comprises an infrared encoding and decoding chip, an infrared receiving head and an infrared transmitting tube, wherein the infrared encoding and decoding chip is provided with an infrared transmitting pin connected with the infrared transmitting tube, an infrared receiving pin connected with a signal pin of the infrared receiving head, and a digital signal output pin,
it is characterized in that the preparation method is characterized in that,
the infrared coding and decoding chip is also provided with a mode control pin and an enabling control pin;
the mode control pin is connected with an external control signal, and the enabling control pin is connected with a power input pin of the infrared receiving head to enable the infrared receiving head to be in an intermittent enabling state.
2. The low-power consumption infrared sensing circuit module according to claim 1, wherein the infrared receiving head comprises a power input pin 3, a ground pin 2, a signal pin 1;
the infrared coding and decoding chip is M53 in model and comprises pins P67, P66, VDD, P65, P64, P63, P62, P61, P60 and VSS pins, wherein:
the P60 pin is a power input pin 3 which enables the control pin to be connected with the infrared receiving head;
a P62 pin is a mode control pin SHUT for connecting external control signals;
the P64 pin is an infrared emission pin and is connected with an infrared emission tube;
the P65 pin is a signal pin 1 with an infrared receiving pin connected with an infrared receiving head;
the pin P67 is a digital signal output pin OUT for outputting signals;
the VDD pin is connected with a power supply;
the VSS pin is grounded;
the P63 pin is connected with the resistor R3 in series and then is grounded;
the P61 and P66 pins are suspended.
3. The IR sensing circuit module of claim 2, wherein the P64 pin is connected to the cathode of an IR emitter tube D1, and the anode of the IR emitter tube D1 is connected to a resistor R1 and then to a power supply.
4. The IR sensing circuit module of claim 2, wherein the pins P67 and VDD of the IR codec chip are further connected with a filter capacitor C3, and the power input pin 3 of the IR receiving terminal is further connected with a filter capacitor C2.
5. The low power consumption infrared induction circuit module as claimed in claim 1, wherein the model number of the infrared receiving head is HS 0038B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351167.3U CN211603576U (en) | 2020-03-19 | 2020-03-19 | Low-power consumption infrared induction circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351167.3U CN211603576U (en) | 2020-03-19 | 2020-03-19 | Low-power consumption infrared induction circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211603576U true CN211603576U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020351167.3U Active CN211603576U (en) | 2020-03-19 | 2020-03-19 | Low-power consumption infrared induction circuit module |
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| CN (1) | CN211603576U (en) |
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