CN211015805U - Infrared detector with power-on and power-off function - Google Patents
Infrared detector with power-on and power-off function Download PDFInfo
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- CN211015805U CN211015805U CN202020302539.3U CN202020302539U CN211015805U CN 211015805 U CN211015805 U CN 211015805U CN 202020302539 U CN202020302539 U CN 202020302539U CN 211015805 U CN211015805 U CN 211015805U
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Abstract
The utility model discloses an infrared detector with on-off machine function, including infrared sensor, temperature sensor, signal amplification circuit, infrared signal analysis circuit, data processing circuit, L oRa transceiver circuit, power supply circuit and power control circuit the utility model discloses combine together traditional infrared detection principle and L oRa wireless communication technique, have the characteristics of reliable and stable anti-interference, communication distance is far away, low-power consumption, realize remote data reception and transmission.
Description
Technical Field
The utility model belongs to the technical field of the security protection equipment, especially, relate to an infrared detector with switch on function.
Background
In the security industry, infrared detectors are used as important accessories of networked alarm control systems. In a traditional security alarm system, common infrared detectors are divided into a wired infrared detector and a wireless infrared detector; more, the system is applied to household precaution, has invisible precaution and human body monitoring alarm, and plays an important role in an alarm system; the wired detector has the advantages that: firstly, the power is sufficient, and the battery does not need to be replaced frequently; secondly, the wired alarm signal is stably transmitted, the problem that the wireless alarm signal is interfered does not exist, and the defect is that the circuit is complex and inconvenient to install; the wireless passive infrared detector is upgraded on a wired basis, the original mode of needing wired power supply is converted into a mode of using a battery for power supply, and the signal transmission between the wireless passive infrared detector and the alarm host machine also adopts a wireless mode, so that the product is optimized and upgraded; the wireless passive infrared detector has the advantages of full wireless design, convenient installation, battery power supply and wireless signal transmission, but poor anti-interference capability and easy false alarm and missing report caused by high frequency or same frequency interference; in an alarm control system, an alarm main machine generally adopts a 7AH storage battery, can continuously work for more than 18 hours when power is cut off, shortens the power supply time after the battery is charged for several times, and cannot meet the technical and preventive requirements of continuous work for 18 hours when power is cut off.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an infrared detector with switch-on and switch-off function for solving the above-mentioned problem, including infrared sensor, temperature sensor, signal amplification circuit, infrared signal analysis circuit, data processing circuit, L oRa transceiver circuit, power supply circuit and power control circuit, infrared sensor passes through signal amplification circuit and infrared signal analysis circuit input and links to each other, temperature sensor with infrared signal analysis circuit input links to each other, infrared signal analysis circuit output, L oRa transceiver circuit link to each other with data processing circuit, power supply circuit with data processing circuit, power control circuit, L oRa transceiver circuit link to each other, data processing circuit and power control circuit control input link to each other, power control circuit output with infrared sensor, signal amplification circuit, infrared signal analysis circuit link to each other.
The beneficial effects of the utility model reside in that, the utility model discloses combine together traditional infrared detection principle and L oRa wireless communication technique, have the characteristics of reliable and stable anti-interference, communication distance is far away, low-power consumption, realize remote data reception and transmission.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a circuit diagram of a signal amplification circuit;
fig. 3 is a circuit diagram of a power supply control circuit.
In the figure: r1 — first resistance; r2 — second resistance; r3 — third resistance; r4-fourth resistor; r5-fifth resistor; r6-sixth resistance; r7 — seventh resistor; r8 — eighth resistance; r9 — ninth resistor; r10 — tenth resistance; r11 — eleventh resistor; c1 — first capacitance; c2 — second capacitance; c3 — third capacitance; c4-fourth capacitance; c5 — fifth capacitance; c6 — sixth capacitance; c7 — seventh capacitance; c8 — eighth capacitance; c9 — ninth capacitance; c10 — tenth capacitance; u1 — first amplifier; u2 — second amplifier; a D-diode; q1-triode.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawing 1, the utility model relates to an infrared detector with on-off function, including infrared sensor, temperature sensor, signal amplification circuit, infrared signal analysis circuit, data processing circuit, L oRa transceiver circuit, power supply circuit and power control circuit, infrared sensor passes through signal amplification circuit and infrared signal analysis circuit input and links to each other, temperature sensor with infrared signal analysis circuit input links to each other, infrared signal analysis circuit output, L oRa transceiver circuit link to each other with data processing circuit, power supply circuit with data processing circuit, power control circuit, L oRa transceiver circuit link to each other, data processing circuit with power control circuit control input links to each other, power control circuit output with infrared sensor, signal amplification circuit, infrared signal analysis circuit link to each other.
As shown in fig. 2, the signal amplifying circuit includes a first resistor, a second resistor, a first capacitor, a second capacitor, a first-stage amplifier circuit, a second-stage amplifier circuit, a diode, and a ground circuit; the output end of the infrared sensor is connected with the first end of the first resistor and the first end of the first capacitor; the second end of the first resistor is connected with the first end of the second resistor, the first end of the second capacitor and the first end of the third capacitor; the second end of the first capacitor, the second end of the second resistor and the second end of the second capacitor are grounded; the second end of the third capacitor is connected with the input end of the amplifier circuit; the amplifier circuit comprises a third resistor, a fourth resistor, a fifth resistor, an amplifier, a fourth capacitor, a fifth capacitor and a polar capacitor; the first end of the third resistor is connected with the second end of the third capacitor; the second end of the third resistor is connected with the equidirectional input end of the amplifier and the first end of the fourth capacitor; the second end of the fourth capacitor is connected with the reverse input end of the amplifier, the first end of the fourth resistor, the first end of the fifth resistor and the first end of the fifth capacitor; the second end of the fourth resistor and the second end of the fifth capacitor are connected with the output end of the amplifier and the first end of the sixth resistor; the second end of the fifth resistor is grounded through a polar capacitor; the grounding circuit comprises a ninth resistor and a ninth capacitor; the output end of the second-stage amplifier circuit is connected with the first end of the ninth resistor, the first end of the ninth capacitor and the output end of the signal amplification circuit through diodes; and the second end of the ninth resistor is connected with the second end of the ninth capacitor.
As shown in fig. 3, the power control circuit includes a tenth resistor, an eleventh resistor, and a transistor; the output end of the power supply circuit is connected with the first end of the tenth resistor and the emitter of the triode; the second end of the eleventh resistor is connected with the base electrode of the triode; the collector of the triode is connected with the output end of the power control circuit; and the output end of the data processing circuit is connected with the base electrode of the triode through a tenth resistor.
The infrared signal analysis circuit comprises an infrared sensing signal processor, the signal amplification circuit is connected with a data processing circuit through the infrared sensing signal processor, a mounting seat is arranged on the back of a shell of the infrared detector and connected with the back of the shell of the detector, a light-transmitting piece and a Fresnel lens are arranged on the front of the detector, a main control circuit board and a battery seat are mounted in the detector, the main control circuit board comprises an infrared sensor, a temperature sensor, a signal amplification circuit, an infrared signal analysis circuit, a data processing circuit, an L oRa transceiver circuit, a power supply circuit and a power supply control circuit, the infrared sensor corresponds to the Fresnel lens to form an optical circuit, and a L oRa transceiver module is adopted in the L oRa transceiver circuit.
When someone enters the detection range, when the infrared sensor detects a signal of human body existence or movement, the signal is amplified by the signal amplification circuit and converted into a voltage signal by the infrared signal analysis circuit, the signal data processing circuit performs waveform analysis on the voltage signal, and only when the waveform generated by the human body is detected by the waveform analysis, the detection signal is output.
The power circuit can use a common No. 5 battery and also can use a lithium battery to supply power to the detector for a long time; when the power supply control circuit detects that the battery voltage is low, the battery under-voltage state is automatically uploaded to the alarm receiving center through the alarm host; the alarm host can perform instruction control on the front-end detector through arming and disarming, and under the arming state of the alarm host, the detector is powered on, and under the disarming state, the detector is disconnected, so that the power consumption is reduced, and the cost for replacing the battery is reduced.
The utility model discloses combine together traditional infrared detection principle and L oRa wireless communication technique, have the characteristics of reliable and stable anti-interference, communication distance is far away, the low-power consumption, realize remote data reception and transmission.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (4)
1. An infrared detector with a power-on and power-off function is characterized by comprising an infrared sensor, a temperature sensor, a signal amplification circuit, an infrared signal analysis circuit, a data processing circuit, an L oRa transceiver circuit, a power supply circuit and a power supply control circuit, wherein the infrared sensor is connected with the input end of the infrared signal analysis circuit through the signal amplification circuit, the temperature sensor is connected with the input end of the infrared signal analysis circuit, the output end of the infrared signal analysis circuit and the L oRa transceiver circuit are connected with the data processing circuit, the power supply circuit is connected with the data processing circuit, the power supply control circuit and the L oRa transceiver circuit, the data processing circuit is connected with the control input end of the power supply control circuit, and the output end of the power supply control circuit is connected with the infrared sensor, the signal amplification circuit and the infrared signal analysis circuit.
2. The infrared detector with the power-on and power-off function as claimed in claim 1, wherein the signal amplifying circuit comprises a first resistor, a second resistor, a first capacitor, a second capacitor, a first-stage amplifier circuit, a second-stage amplifier circuit, a diode and a grounding circuit; the output end of the infrared sensor is connected with the first end of the first resistor and the first end of the first capacitor; the second end of the first resistor is connected with the first end of the second resistor, the first end of the second capacitor and the first end of the third capacitor; the second end of the first capacitor, the second end of the second resistor and the second end of the second capacitor are grounded; the second end of the third capacitor is connected with the input end of the amplifier circuit; the amplifier circuit comprises a third resistor, a fourth resistor, a fifth resistor, an amplifier, a fourth capacitor, a fifth capacitor and a polar capacitor; the first end of the third resistor is connected with the second end of the third capacitor; the second end of the third resistor is connected with the equidirectional input end of the amplifier and the first end of the fourth capacitor; the second end of the fourth capacitor is connected with the reverse input end of the amplifier, the first end of the fourth resistor, the first end of the fifth resistor and the first end of the fifth capacitor; the second end of the fourth resistor and the second end of the fifth capacitor are connected with the output end of the amplifier and the first end of the sixth resistor; the second end of the fifth resistor is grounded through a polar capacitor; the grounding circuit comprises a ninth resistor and a ninth capacitor; the output end of the second-stage amplifier circuit is connected with the first end of the ninth resistor, the first end of the ninth capacitor and the output end of the signal amplification circuit through diodes; and the second end of the ninth resistor is connected with the second end of the ninth capacitor.
3. The infrared detector with the on-off function as claimed in claim 1, wherein the power control circuit comprises a tenth resistor, an eleventh resistor and a triode; the output end of the power supply circuit is connected with the first end of the tenth resistor and the emitter of the triode; the second end of the eleventh resistor is connected with the base electrode of the triode; the collector of the triode is connected with the output end of the power control circuit; and the output end of the data processing circuit is connected with the base electrode of the triode through a tenth resistor.
4. The infrared detector with the power-on and power-off function as claimed in claim 1, wherein the infrared signal analyzing circuit comprises an infrared sensing signal processor; the signal amplification circuit is connected with the data processing circuit through the infrared sensing signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302539.3U CN211015805U (en) | 2020-03-12 | 2020-03-12 | Infrared detector with power-on and power-off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302539.3U CN211015805U (en) | 2020-03-12 | 2020-03-12 | Infrared detector with power-on and power-off function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211015805U true CN211015805U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020302539.3U Active CN211015805U (en) | 2020-03-12 | 2020-03-12 | Infrared detector with power-on and power-off function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211015805U (en) |
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2020
- 2020-03-12 CN CN202020302539.3U patent/CN211015805U/en active Active
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