CN211086636U - Low-power consumption microwave sensor and control circuit thereof - Google Patents
Low-power consumption microwave sensor and control circuit thereof Download PDFInfo
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- CN211086636U CN211086636U CN201922205092.8U CN201922205092U CN211086636U CN 211086636 U CN211086636 U CN 211086636U CN 201922205092 U CN201922205092 U CN 201922205092U CN 211086636 U CN211086636 U CN 211086636U
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Abstract
The utility model discloses a low-power consumption microwave sensor and control circuit thereof, including microwave module, control module and voltage stabilizing module, control module includes first control chip U1, voltage stabilizing module includes second control chip U2, pin 5 of first control chip U1 is connected with pin 3 of second control chip U2, pin 5 of second control chip U2 is connected with the microwave module; the utility model provides a low-power consumption microwave sensor's control circuit, intermittent type nature signal output control second control chip U2 through first control chip U1 to control microwave module intermittent type nature transmitting signal, realized microwave sensor's intermittent type nature work promptly, reduced microwave sensor's working loss, reach energy-conserving effect.
Description
Technical Field
The utility model relates to a microwave sensor technical field, in particular to low-power consumption microwave sensor and control circuit thereof.
Background
The microwave sensor adopts the microwave Doppler principle to realize detection and output induction signals, and is widely applied to the detection fields of moving human body objects, moving vehicles, liquid and gas flow and the like.
The microwave sensor belongs to a current type device, the normal working current is more than 50mA, the control current required by the current battery power supply is larger, namely the current microwave sensor has the problem of high working loss.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art, an object of the present invention is to provide a low power consumption microwave sensor and control circuit thereof, which can reduce the loss of the microwave sensor during operation and achieve the energy saving effect.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the control circuit of the low-power-consumption microwave sensor comprises a microwave module, a control module and a voltage stabilizing module, wherein the control module comprises a first control chip U1, the voltage stabilizing module comprises a second control chip U2, a pin 5 of the first control chip U1 is connected with a pin 3 of a second control chip U2, and a pin 5 of the second control chip U2 is connected with the microwave module.
In the control circuit of the low-power-consumption microwave sensor, the voltage stabilizing module further comprises a current limiting unit, an input voltage stabilizing unit and an output voltage stabilizing unit, wherein one end of the current limiting unit is connected with a pin 5 of a first control chip U1, the other end of the current limiting unit is connected with a pin 3 of a second control chip U2, one end of the input voltage stabilizing unit is grounded, the other end of the input voltage stabilizing unit is connected with a pin 1 of a second control chip U2, one end of the output voltage stabilizing unit is grounded, and the other end of the output voltage stabilizing unit is connected with a pin 5 of a second control chip U2; and a pin 1 of the second control chip U2 is connected with an external power supply VCC, a pin 2 of the second control chip U2 is grounded, and a pin 4 of the second control chip U2 is empty.
In the control circuit of the low-power-consumption microwave sensor, the current limiting unit comprises a first resistor R1, one end of the first resistor R1 is connected with a pin 5 of a first control chip U1, and the other end of the first resistor R1 is connected with a pin 3 of a second control chip U2.
In the control circuit of the low-power-consumption microwave sensor, the input voltage stabilizing unit comprises a first capacitor C1, one end of the first capacitor C1 is grounded, and the other end of the first capacitor C1 is connected with a pin 1 of a second control chip U2.
In the control circuit of the low-power-consumption microwave sensor, the output voltage stabilizing unit comprises a second capacitor C2, one end of the second capacitor C2 is connected with a pin 5 of a second control chip U2, and the other end of the second capacitor C2 is grounded.
The utility model discloses still the correspondence provides a low-power consumption microwave sensor, include the casing and set up in the upper cover at casing top, be provided with the control panel in the casing, be provided with foretell low-power consumption microwave sensor's control circuit on the control panel.
Has the advantages that:
the utility model provides a low-power consumption microwave sensor and control circuit thereof, low-power consumption microwave sensor's control circuit is through the signal output of first control chip U1 intermittent type nature signal output control second control chip U2 to control microwave module intermittent type nature transmission signal, realize microwave sensor's intermittent type nature work promptly, reduced microwave sensor's working loss, reach energy-conserving effect.
Drawings
Fig. 1 is a schematic structural diagram of a control circuit of a low power consumption microwave sensor provided by the present invention;
fig. 2 is a circuit structure diagram of a control circuit of the low power consumption microwave sensor provided by the present invention;
fig. 3 is the utility model provides a low-power consumption microblog sensor's schematic structure.
Description of the main element symbols: 1-shell and 2-upper cover.
Detailed Description
The utility model provides a low-power consumption microwave sensor and control circuit thereof, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
Referring to fig. 1 and 2, the present invention provides a control circuit of a low power consumption microwave sensor, including a microwave module, further including a control module and a voltage stabilizing module, where the control module includes a first control chip U1, the voltage stabilizing module includes a second control chip U2, a pin 5 of the first control chip U1 is connected to a pin 3 of the second control chip U2, and a pin 5 of the second control chip U2 is connected to the microwave module; in this embodiment, the model of the first control chip U1 may be, but is not limited to, the PIC12F615, and the model of the second control chip U2 may be, but is not limited to, the ME 6211C.
The utility model provides a low-power consumption microwave sensor's control circuit's theory of operation as follows:
a pin 3 of the second control chip U2 is an enabling pin, a pin 5 of the second control chip U2 is an output pin, a pin 5 of the second control chip U2 is connected with the microwave module, and a pin 5 of the first control chip U1 is connected with a pin 3 of the second control chip U2; supposing that 1 is high level and 0 is low level, when the output of the pin 5 of the first control chip U1 is 1, the pin 5 of the second control chip U2 has signal output, the microwave module starts to work, when the output of the pin 5 of the first control chip U1 is 0, the pin 5 of the second control chip U2 has no signal output, the microwave module stops working, and therefore the on-off control of the power supply of the microwave module is realized; by adjusting the cycle proportion of high and low level output, for example, assuming that a working cycle is 0.6 second, the output time of the high level is controlled to be 0.1 second, and the output time of the low level is controlled to be 0.5 second, the intermittent signal transmission of the microwave sensor is realized, that is, the intermittent work of the microwave sensor is realized, the loss of the microwave sensor during work is greatly reduced, and the energy-saving effect is achieved.
Further, referring to fig. 1, the voltage stabilizing module further includes a current limiting unit, an input voltage stabilizing unit and an output voltage stabilizing unit, one end of the current limiting unit is connected to a pin 5 of the first control chip U1, the other end of the current limiting unit is connected to a pin 3 of the second control chip U2, one end of the input voltage stabilizing unit is grounded, the other end of the input voltage stabilizing unit is connected to a pin 1 of the second control chip U2, one end of the output voltage stabilizing unit is grounded, and the other end of the output voltage stabilizing unit is connected to a pin 5 of the second control chip U2; and a pin 1 of the second control chip U2 is connected with an external power supply VCC, a pin 2 of the second control chip U2 is grounded, and a pin 4 of the second control chip U2 is empty.
Further, referring to fig. 2, the current limiting unit includes a first resistor R1, one end of the first resistor R1 is connected to the pin 5 of the first control chip U1, and the other end of the first resistor R1 is connected to the pin 3 of the second control chip U2; the first resistor R1 functions as a current limiter.
Further, referring to fig. 2, the input voltage stabilizing unit includes a first capacitor C1, one end of the first capacitor C1 is grounded, and the other end of the first capacitor C1 is connected to pin 1 of the second control chip U2; the first capacitor C1 functions as a filter regulator.
Further, referring to fig. 2, the output voltage stabilizing unit includes a second capacitor C2, one end of the second capacitor C2 is connected to the pin 5 of the second control chip U2, and the other end of the second capacitor C2 is grounded; the second capacitor C2 functions as a filter regulator.
Referring to fig. 3, the present invention further provides a low power consumption microwave sensor, which includes a housing 1 and an upper cover 2 disposed on the top of the housing 1, wherein a control board is disposed in the housing 1, and the control board is provided with a control circuit of the low power consumption microwave sensor; in the present embodiment, the housing 1 and the upper cover 2 may be, but not limited to, in a welded connection relationship.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (6)
1. The control circuit of the low-power-consumption microwave sensor comprises a microwave module and is characterized by further comprising a control module and a voltage stabilizing module, wherein the control module comprises a first control chip U1, the voltage stabilizing module comprises a second control chip U2, a pin 5 of the first control chip U1 is connected with a pin 3 of a second control chip U2, and a pin 5 of the second control chip U2 is connected with the microwave module.
2. The control circuit of the microwave sensor with low power consumption of claim 1, wherein the voltage stabilizing module further comprises a current limiting unit, an input voltage stabilizing unit and an output voltage stabilizing unit, one end of the current limiting unit is connected with a pin 5 of a first control chip U1, the other end of the current limiting unit is connected with a pin 3 of a second control chip U2, one end of the input voltage stabilizing unit is grounded, the other end of the input voltage stabilizing unit is connected with a pin 1 of a second control chip U2, one end of the output voltage stabilizing unit is grounded, and the other end of the output voltage stabilizing unit is connected with a pin 5 of a second control chip U2; and a pin 1 of the second control chip U2 is connected with an external power supply VCC, a pin 2 of the second control chip U2 is grounded, and a pin 4 of the second control chip U2 is empty.
3. The control circuit of the low-power-consumption microwave sensor as claimed in claim 2, wherein the current limiting unit comprises a first resistor R1, one end of the first resistor R1 is connected to pin 5 of the first control chip U1, and the other end of the first resistor R1 is connected to pin 3 of the second control chip U2.
4. The control circuit of claim 2, wherein the input voltage regulator unit comprises a first capacitor C1, one end of the first capacitor C1 is grounded, and the other end of the first capacitor C1 is connected to pin 1 of the second control chip U2.
5. The control circuit of claim 2, wherein the output voltage regulator unit comprises a second capacitor C2, one end of the second capacitor C2 is connected to pin 5 of the second control chip U2, and the other end of the second capacitor C2 is grounded.
6. A low-power consumption microwave sensor, characterized in that, it comprises a casing and an upper cover arranged on the top of the casing, a control panel is arranged in the casing, and a control circuit of the low-power consumption microwave sensor as claimed in any one of claims 1 to 5 is arranged on the control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205092.8U CN211086636U (en) | 2019-12-10 | 2019-12-10 | Low-power consumption microwave sensor and control circuit thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205092.8U CN211086636U (en) | 2019-12-10 | 2019-12-10 | Low-power consumption microwave sensor and control circuit thereof |
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| Publication Number | Publication Date |
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| CN211086636U true CN211086636U (en) | 2020-07-24 |
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| CN201922205092.8U Active CN211086636U (en) | 2019-12-10 | 2019-12-10 | Low-power consumption microwave sensor and control circuit thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111867025A (en) * | 2020-08-04 | 2020-10-30 | 隔空（上海）智能科技有限公司 | Low-power consumption microwave sensor and control circuit thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111867025A (en) * | 2020-08-04 | 2020-10-30 | 隔空（上海）智能科技有限公司 | Low-power consumption microwave sensor and control circuit thereof |
| CN111867025B (en) * | 2020-08-04 | 2023-01-24 | 隔空（上海）智能科技有限公司 | Low-power consumption microwave sensor and control circuit thereof |
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