CN110716236A - Presence sensor - Google Patents
Presence sensor Download PDFInfo
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- CN110716236A CN110716236A CN201910998725.7A CN201910998725A CN110716236A CN 110716236 A CN110716236 A CN 110716236A CN 201910998725 A CN201910998725 A CN 201910998725A CN 110716236 A CN110716236 A CN 110716236A
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- 230000006698 induction Effects 0.000 claims description 28
- 239000003381 stabilizer Substances 0.000 claims description 15
- 230000001052 transient effect Effects 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 9
- 230000010355 oscillation Effects 0.000 description 8
- 230000001629 suppression Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
Abstract
The invention discloses a presence sensor which comprises a sensing part and a shell, wherein the power supply input end of a power supply management module is connected with mains supply, the power supply input end of a microwave sensing module is connected with the power supply output end of the power supply management module, the working frequency range of the microwave sensing module is 2.75 GHz-2.9 GHz, the sensing part is arranged in the shell, and the shell is provided with a torsion spring convenient to install. The existence sensor has the advantages of high reaction speed, high sensitivity, wide sensing area, no interference of temperature, airflow, dust, smoke and the like and high stability; moreover, the shell adopts the installation structure of the torsion spring, so that the installation is convenient and quick to operate, the structure is simple, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of induction, in particular to a presence sensor.
Background
At present, the existing sensors on the market mainly detect the movement of a human body through infrared rays and ultrasonic waves so as to control electric appliances. However, when the sensor is shielded by a medium such as a wood board or a gypsum board, the infrared sensor and the ultrasonic sensor cannot normally detect the movement of the human body, and in addition, the infrared sensor and the ultrasonic sensor are easily interfered by a heat source, a light source, radio frequency radiation and the like, so that the existing sensor can be used only in a small range.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the existence sensor which can detect the existence of the human body by detecting the Doppler frequency shift reflected by the human body or the object during movement by utilizing the Doppler effect principle, has better penetrability and sensitivity and is less interfered by the outside.
A presence sensor according to an embodiment of the present invention comprises: the induction component comprises a power management module and a microwave induction module, wherein the power supply input end of the power management module is connected with mains supply, the power supply input end of the microwave induction module is connected with the power supply output end of the power management module, and the working frequency band of the microwave induction module is 2.75 GHz-2.9 GHz; the casing, response part sets up in the casing, the casing includes mount pad, torsion spring and wiring mouth, the mount pad is provided with spacing portion, torsion spring's one end sets up in spacing portion, torsion spring's the other end outwards extends as the free end that supplies user operation control, the wiring mouth sets up on the mount pad, the quantity of wiring mouth is 4 at least.
The presence sensor according to the embodiment of the invention has at least the following beneficial effects: the invention provides a presence sensor, which comprises a sensing component and a shell, wherein a microwave sensing module of the microwave sensing module emits microwaves with the frequency of 2.75GHz to 2.9GHz, when a human body or an object moves in a sensing range, the existence of the human body can be detected by detecting Doppler frequency shift reflected by the motion of the human body or the object by utilizing the Doppler effect principle, and the microwaves with the frequency range of 2.75GHz to 2.9GHz have better penetrability, so that the embodiment of the invention has the advantages of high reaction speed, higher sensitivity, wide sensing area, no interference of temperature, airflow, dust, smoke and the like and higher stability; moreover, the shell adopts the installation structure of the torsion spring, so that the installation is convenient and quick to operate, the structure is simple, and the cost is saved.
According to some embodiments of the invention, the power management module comprises a voltage reduction unit, and a power supply output end of the voltage reduction unit is connected with a power supply input end of the microwave induction module.
According to some embodiments of the invention, the power management module comprises: power control unit, signal reception unit and transient voltage restrain diode unit, power control unit's power supply input end and commercial power connection, signal reception unit's data input end with the data output part of microwave response module is connected, signal reception unit's data output part with power control unit's data input part is connected, transient voltage restrain diode unit's input with power control unit's output is connected, transient voltage restrain diode unit's output and outside controlled equipment are connected.
According to some embodiments of the invention, the microwave induction module comprises: the microwave induction unit and the power supply input end of the microwave control unit are respectively connected with the voltage stabilizing output end of the linear calibration voltage stabilizer, the power supply input end of the linear calibration voltage stabilizer is connected with the power supply output end of the power supply management module, the data output end of the microwave induction unit is connected with the data input end of the microwave control unit, the data output end of the microwave control unit is connected with the data input end of the RS trigger port, the RS trigger port outputs signals processed by the microwave control unit, and the data output end of the RS trigger port is connected with the data input end of the signal receiving unit.
According to some embodiments of the invention, the microwave induction module comprises: the microwave sensing unit and the power supply input end of the microwave control unit are respectively connected with the voltage stabilizing output end of the linear calibration voltage stabilizer, the power supply input end of the linear calibration voltage stabilizer is connected with the power supply output end of the power supply management module, the data output end of the microwave sensing unit is connected with the data input end of the microwave control unit, the data output end of the microwave control unit is connected with the data input end of the RS trigger port, and the RS trigger port outputs signals processed by the microwave control unit.
According to some embodiments of the invention, the housing further comprises a decorative panel provided with an aperture and a protective cover for receiving the antenna, the protective cover passing through the decorative panel from the aperture.
According to some embodiments of the invention, the wire connection port comprises: the device comprises a live wire input interface, a live wire output interface, a public zero line interface and at least one reserved interface.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of an inductive component according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a housing according to an embodiment of the present invention;
FIG. 3 is a second schematic structural diagram of the housing according to the embodiment of the invention;
FIG. 4 is an installation schematic of an embodiment of the invention;
fig. 5 is a schematic diagram of the connection between the embodiment of the present invention and an external controlled device.
The device comprises a sensing component 100, a microwave sensing module 110, a microwave sensing unit 111, a microwave control unit 112, a linear calibration voltage regulator 113, an RS trigger port 114, a power management module 120, a power control unit 121, a voltage reduction unit 122, a signal receiving unit 123, a transient voltage suppression diode unit 124, a voltage detection unit,
the connector comprises a shell 200, a mounting seat 201, a torsion spring 202, a wire connection port 203, a limiting part 204, a free end 205, a decorative panel 206 and a protective cover 207.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the invention by combining the detailed contents of the technical solutions.
A presence sensor according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
A presence sensor according to an embodiment of the present invention includes a sensing member 100 and a housing 200.
Referring to fig. 1, the sensing component 100 includes a power management module 120 and a microwave sensing module 110, a power supply input end of the power management module 120 is connected to a mains supply, a power supply input end of the microwave sensing module 110 is connected to a power supply output end of the power management module 120, and an operating frequency band of the microwave sensing module 110 is 2.75GHz to 2.9 GHz. The power supply pin of the power management module 120 is connected to the mains supply, the mains supply is 110V-220V ac, and the power management module 120 supplies power to the microwave induction module 110. By using the doppler effect principle, the microwave sensing module 110 processes to obtain a TTL level signal by detecting the doppler shift reflected from the movement of the human body or object, and transmits the TTL level signal to the power management module 120 through the data communication pin, and the power management module 120 controls the on-off state of the external controlled device connected to the embodiment of the present invention according to the TTL level signal; in addition, the operating frequency of other commercially available microwave sensors is usually higher than 5GHz, and in the embodiment of the present invention, the operating frequency of the microwave sensing module 110 is 2.75GHz to 2.9GHz, and the lower frequency microwave has stronger penetrability than the high frequency microwave and is not easily absorbed and lost by an object, so that the presence sensor in the embodiment of the present invention has higher sensitivity; in addition, the conventional microwave sensor is not designed as a power control module, and is easily interfered by a strong electric field, and in the embodiment of the present invention, the addition of the power management module 120 makes the existing sensor of the embodiment of the present invention have stronger stability and less interference by the outside.
Referring to fig. 2 and 3, in the housing 200, the sensing component 100 is disposed in the housing 200, the housing 200 includes a mounting seat 201, a torsion spring 202, and a wire connection port 203, the mounting seat 201 is provided with a limiting portion 204, one end of the torsion spring 202 is disposed in the limiting portion 204, the other end of the torsion spring 202 extends outward as a free end 205 for user operation and control, the wire connection port 203 is disposed on the mounting seat 201, and the number of the wire connection ports 203 is at least 4. Specifically, the torsion spring 202 is provided with 2 pieces, symmetrically arranged at the edge of the mounting seat 201, one end of the torsion spring 202 is installed in the limiting part 204, the other end of the torsion spring 202 extends outwards to be a free end 205 for the user to operate and control, the torsion spring belongs to a spiral spring, the end parts of the torsion spring are fixed to other components, and when the other components rotate around the center of the spring, the spring pulls the other components back to the initial position to generate torque or rotating force. Specifically, referring to fig. 4, in the embodiment of the present invention, when there is no external force, the torsion spring 202 abuts against one end of the mounting seat 201 away from the wire connection port 203, when it is required to mount the embodiment of the present invention, a user turns up the free end 205 to abut against one end of the mounting seat 201 close to the wire connection port 203, then puts the embodiment of the present invention into a position to be mounted, and finally releases the free end 205, so that the two free ends 205 will be clamped in the mounting holes due to the rotating force generated by the torsion spring 202, thereby fixing the embodiment of the present invention at the position to be mounted well. After the installation is finished, the installation base 201, the torsion spring 202 and the wiring port 203 are all hidden in the installation hole, and the installation surface is in smooth transition with the installation surface, so that the appearance of the installation surface is not affected suddenly, and the installation surface is not easy to be stained with dust and easy to clean.
In one embodiment of the invention, the mounting holes are circular holes with a depth of 35mm and a diameter of 12 cm.
It is understood that the torsion spring 202 may also be three, four, etc., without being limited thereto.
In some embodiments of the present invention, the power management module 120 includes a voltage reduction unit 122, and a power supply output terminal of the voltage reduction unit 122 is connected to a power supply input terminal of the microwave sensing module 110. The power supply input end of the power management module 120 is connected to the commercial power of 110V to 220V, and outputs a 5V power supply for the microwave sensing module 110 after being processed by the voltage reduction unit 122.
In some embodiments of the present invention, power management module 120 comprises: the microwave induction module comprises a power supply control unit 121, a signal receiving unit 123 and a transient voltage suppression diode unit 124, wherein the power supply input end of the power supply control unit 121 is connected with mains supply, the data input end of the signal receiving unit 123 is connected with the data output end of the microwave induction module 110, the data output end of the signal receiving unit 123 is connected with the data input end of the power supply control unit 121, the input end of the transient voltage suppression diode unit 124 is connected with the output end of the power supply control unit 121, and the output end of the transient voltage suppression diode unit 124 is connected with an external controlled device. Specifically, the power control unit 121 obtains 110V to 220V ac power from the mains supply, and outputs a 5V power for the microwave sensing module 110 after being processed by the voltage reduction unit 122, the signal receiving unit 123 receives a TTL level signal output from the microwave sensing module 110 and transmits the TTL level signal to the power control unit 121, the power control unit 121 is connected to the external controlled device through the transient voltage suppression diode unit 124, and the power control unit 121 controls the switching condition of the external controlled device according to the TTL level signal condition, wherein the transient voltage suppression diode unit 124 can effectively avoid damage to the power control module caused by the surge power of thousands of watts at the moment of starting the high-power electric device.
In some embodiments of the present invention, the microwave induction module 110 comprises: the microwave sensing unit 111, the microwave control unit 112, the linear calibration voltage stabilizer 113 and the RS trigger port 114, power supply input ends of the microwave sensing unit 111 and the microwave control unit 112 are respectively connected with a voltage stabilization output end of the linear calibration voltage stabilizer 113, a power supply input end of the linear calibration voltage stabilizer 113 is connected with a power supply output end of the power management module 120, a data output end of the microwave sensing unit 111 is connected with a data input end of the microwave control unit 112, a data output end of the microwave control unit 112 is connected with a data input end of the RS trigger port 114, the RS trigger port 114 outputs a signal processed by the microwave control unit 112, and a data output end of the RS trigger port 114 is connected with a data input end of the signal receiving unit 123. The linear calibration voltage regulator 113 performs voltage stabilization on the electric energy subjected to voltage reduction processing from the power management module 120, and supplies power to the microwave sensing unit 111 and the microwave control unit 112, the microwave sensing unit 111 adopts a high-frequency device as a difference frequency signal processor, and processes a received doppler shift signal into a pulse signal of 10MHz to 20MHz through operations such as resonance frequency oscillation starting and integral compensation, and transmits the pulse signal to the microwave control unit 112, the microwave control unit 112 converts the pulse signal of 10MHz to 20MHz into a TTL level signal, and the RS trigger port 114 is configured to output the signal processed by the microwave control unit 112 to the signal receiving unit 123, it should be understood that the signal processed by the microwave control unit 112 is the TTL level signal.
It should be noted that the microwave induction unit 111 includes: the antenna comprises a microwave oscillation module, an antenna induction module and a microwave signal processing module. The microwave signal processing module is used for processing the received Doppler frequency shift signal into a pulse signal of 10MHz to 20MHz through operations such as resonance frequency oscillation starting, integral compensation and the like.
It should be understood that the microwave oscillation module includes: in one embodiment of the invention, a front-end frequency source of the embodiment of the invention is designed by adopting the series feedback type dielectric oscillator, the low-noise transistor is selected as an active device of the embodiment of the invention, and the dielectric resonator with high quality factor and high dielectric constant is adopted as a frequency stabilizing element to determine the resonant frequency of the microwave oscillation module and generate microwaves in a frequency range of 2.75GHz to 2.9 GHz.
In some embodiments of the present invention, the antenna sensing module comprises: the microwave receiving device comprises a transmitting antenna and a receiving antenna, specifically, a planar microstrip antenna is selected as the transmitting antenna, microwaves with the frequency range of 2.75GHz to 2.9GHz generated by a microwave oscillation module are transmitted by the planar microstrip antenna, the microwaves are reflected when encountering an obstacle and then received by the receiving antenna, and if a human body or an object moves in an induction range, the reflected electromagnetic waves can generate Doppler frequency shift.
It can be understood that the microwave signal processing module comprises: the frequency-selecting circuit comprises a mixing circuit, a filter circuit and an intermediate frequency signal processing circuit, wherein the mixing circuit is a circuit with the frequency of an output signal equal to the sum or difference of the frequencies of two input signals or other combinations of the two frequencies, and the mixing circuit is generally composed of a nonlinear element and a frequency-selecting loop; filter circuits are commonly used to filter out ripple in the rectified output voltage and are generally composed of reactive components such as a capacitor C connected in parallel across a load resistor or an inductor L connected in series with the load, and various complex filter circuits composed of capacitors and inductors. In an embodiment of the invention, the transmitting antenna transmits microwave signals of 2.75GHz to 2.9GHz outwards, when a human body or an object moves in a detection range, the receiving antenna inputs induction signals to the frequency mixing circuit, the induction signals are mixed with the microwave signals generated by the microwave oscillation module, the frequency mixing circuit outputs Doppler signals of low frequency reflecting the movement of the human body or the object, redundant signals are filtered out through the filter circuit, and then the Doppler signals are amplified through the intermediate frequency signal processing circuit, so that whether the human body or the object appears in the induction area is distinguished.
In some embodiments of the present invention, the microwave induction module 110 comprises: the microwave sensing unit 111, the microwave control unit 112, the linear calibration voltage stabilizer 113 and the RS trigger port 114, power supply input ends of the microwave sensing unit 111 and the microwave control unit 112 are respectively connected with a voltage stabilization output end of the linear calibration voltage stabilizer 113, a power supply input end of the linear calibration voltage stabilizer 113 is connected with a power supply output end of the power management module 120, a data output end of the microwave sensing unit 111 is connected with a data input end of the microwave control unit 112, a data output end of the microwave control unit 112 is connected with a data input end of the RS trigger port 114, the RS trigger port 114 outputs a signal processed by the microwave control unit 112, and a data output end of the RS trigger port 114 is connected with a data input end of the signal receiving unit 123. The linear calibration voltage stabilizer 113 performs voltage stabilization on the electric energy subjected to voltage reduction processing from the power management module 120, and supplies power to the microwave sensing unit 111 and the microwave control unit 112, the microwave sensing unit 111 adopts a high-frequency device as a difference frequency signal processor, and processes a received doppler shift signal into a pulse signal of 10MHz to 20MHz through operations such as resonance frequency oscillation starting and integral compensation, and transmits the pulse signal to the microwave control unit 112, the microwave control unit 112 converts the pulse signal of 10MHz to 20MHz into a TTL level signal, and the RS trigger port 114 is used for outputting the signal processed by the microwave control unit 112.
In some embodiments of the invention, the housing 200 further comprises a decorative panel 206 and a protective cover 207 for receiving the antenna, the decorative panel 206 being provided with an aperture through which the protective cover 207 passes out of the decorative panel 206. Specifically, the protective cover 207 is a hemispherical cover body, the protective cover 207 penetrates through an opening in the middle of the decorative panel 206, and the antenna is arranged in the protective cover 207, so that the transmitting antenna can well transmit signals, and the receiving antenna can well receive target signals without being shielded by a wall body, the decorative panel 206, the mounting seat 201, the torsion spring 202 and the wiring port 203, so that the walking of a human body or an object can be detected within 180 degrees, and external controlled equipment is controlled according to the detection signals. It should be understood that the antennas disposed within the protective cover 207 include a transmitting antenna and a receiving antenna.
Notably, the wiring port 203 includes: the live wire input interface is connected with the live wire of commercial power, the live wire output interface is connected with the live wire of external controlled equipment, and the public zero line interface is connected with the zero line of commercial power and the zero line of external controlled equipment. It should be understood that, referring to fig. 5, a plurality of external controlled devices may be connected in series with the presence sensor of an embodiment of the present invention, so that a plurality of external power consumption devices can be controlled by the presence sensor of the same embodiment of the present invention, which not only effectively saves cost, but also can be better applied to a large-area usage environment such as a factory floor. In the embodiment of the present invention, the external controlled device is a tungsten lamp, and it should be understood that the external controlled device may also be other electric devices such as an energy saving lamp, an LED lamp, and a ventilation fan. In some cases, the reserved interface is a fire-fighting interface, and certainly, the reserved interface can also be an interface with other functions, so that a user can conveniently use the fire-fighting interface in more use environments, for example, the reserved interface can also be a standby interface of a fire wire input interface, a fire wire output interface or a public zero line interface, and when the original fire wire input interface, the original fire wire output interface or the original public zero line interface is damaged, the reserved interface is used as a new fire wire input interface, a new fire wire output interface or a new public zero line interface, so that the existing inductor of the whole embodiment of the invention is not required to be replaced due to the damage of one wiring interface, and the money of the user is greatly saved.
In some embodiments of the present invention, the wire connection port 203 is connected by a bolt, which is a method of clamping a conductive core wire to be connected by a clamping plate or a spacer, and a bolt passes through the middle of the clamping plate or the spacer to connect the conductive core wire and the wire connection port by tightening a nut.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. A presence sensor, comprising:
the induction component comprises a power management module and a microwave induction module, wherein the power supply input end of the power management module is connected with mains supply, the power supply input end of the microwave induction module is connected with the power supply output end of the power management module, and the working frequency band of the microwave induction module is 2.75 GHz-2.9 GHz;
the casing, response part sets up in the casing, the casing includes mount pad, torsion spring and wiring mouth, the mount pad is provided with spacing portion, torsion spring's one end sets up in spacing portion, torsion spring's the other end outwards extends as the free end that supplies user operation control, the wiring mouth sets up on the mount pad, the quantity of wiring mouth is 4 at least.
2. The presence sensor according to claim 1, characterized in that said power management module comprises a voltage step-down unit, the power supply output of which is connected with the power supply input of said microwave induction module.
3. The presence sensor according to claim 1 or 2, characterized in that said power management module comprises: power control unit, signal reception unit and transient voltage restrain diode unit, power control unit's power supply input end and commercial power connection, signal reception unit's data input end with the data output part of microwave response module is connected, signal reception unit's data output part with power control unit's data input part is connected, transient voltage restrain diode unit's input with power control unit's output is connected, transient voltage restrain diode unit's output and outside controlled equipment are connected.
4. The presence sensor according to claim 3, characterized in that said microwave sensing module comprises: the microwave induction unit and the power supply input end of the microwave control unit are respectively connected with the voltage stabilizing output end of the linear calibration voltage stabilizer, the power supply input end of the linear calibration voltage stabilizer is connected with the power supply output end of the power supply management module, the data output end of the microwave induction unit is connected with the data input end of the microwave control unit, the data output end of the microwave control unit is connected with the data input end of the RS trigger port, the RS trigger port outputs signals processed by the microwave control unit, and the data output end of the RS trigger port is connected with the data input end of the signal receiving unit.
5. The presence sensor according to claim 1, characterized in that said microwave sensing module comprises: the microwave sensing unit and the power supply input end of the microwave control unit are respectively connected with the voltage stabilizing output end of the linear calibration voltage stabilizer, the power supply input end of the linear calibration voltage stabilizer is connected with the power supply output end of the power supply management module, the data output end of the microwave sensing unit is connected with the data input end of the microwave control unit, the data output end of the microwave control unit is connected with the data input end of the RS trigger port, and the RS trigger port outputs signals processed by the microwave control unit.
6. The presence sensor according to claim 1, wherein said housing further comprises a decorative panel provided with an aperture and a protective cover for receiving the antenna, said protective cover passing through said decorative panel from said aperture.
7. The presence sensor of claim 1, wherein the wiring port comprises: the device comprises a live wire input interface, a live wire output interface, a public zero line interface and at least one reserved interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998725.7A CN110716236A (en) | 2019-10-21 | 2019-10-21 | Presence sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998725.7A CN110716236A (en) | 2019-10-21 | 2019-10-21 | Presence sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110716236A true CN110716236A (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910998725.7A Pending CN110716236A (en) | 2019-10-21 | 2019-10-21 | Presence sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110716236A (en) |
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2019
- 2019-10-21 CN CN201910998725.7A patent/CN110716236A/en active Pending
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