CN217879676U - Human existence sensing device - Google Patents
Human existence sensing device Download PDFInfo
- Publication number
- CN217879676U CN217879676U CN202220953788.8U CN202220953788U CN217879676U CN 217879676 U CN217879676 U CN 217879676U CN 202220953788 U CN202220953788 U CN 202220953788U CN 217879676 U CN217879676 U CN 217879676U
- Authority
- CN
- China
- Prior art keywords
- stepping motor
- signal processing
- circuit board
- assembly
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a human existence sensing device. Human existence sensing device include: a sensor signal processing assembly comprising: the Fresnel lens, the pyroelectric sensor and the signal processing circuit board are arranged on the base; the Fresnel lens and the pyroelectric sensor are used in a matched manner and are fixed on the signal processing circuit board; a drive assembly, comprising: the stepping motor and the stepping motor driving circuit board; the stepping motor is fixed on the stepping motor driving circuit board; the rotating assembly is arranged between the sensing signal processing assembly and the driving assembly and drives the sensing signal processing assembly to move under the driving of the driving assembly; and the flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly. The utility model provides a novel human body exists sensing device can carry out the perception to static human body, can carry out the perception to the human body of motion again to whether there is the human body to exist in the comprehensive definite detection range.
Description
Technical Field
The utility model belongs to the technical field of detect, a human existence sensing device is related to.
Background
With the rapid progress of society and the rapid development of science and technology, the power load is increased, and energy conservation and emission reduction become common concerns of the whole society. The rapid development of intelligent science and technology now, the development and the application of various novel sensors more and more embody intelligent advantage, very big improvement people's life facility and power consumption efficiency. The main human presence sensing devices currently on the market include microwave sensors, pyroelectric sensors, thermocouple sensors, and the like. The microwave sensor has strong perception to radial movement, the pyroelectric sensor has strong perception to tangential heat body movement, and the thermocouple sensor has perception to temperature change greatly. One problem that is urgently needed to be solved at present is a human presence sensing device that can sense a human body that moves slightly or does not move within a detection range at low cost.
At present, an infrared pyroelectric sensor matched with a Fresnel lens can be applied to a human body sensing motion. The working principle is as follows: when someone passes in front of the Fresnel lens, infrared rays emitted by a human body continuously and alternately enter a high-sensitivity region from a blind region, so that received infrared signals are input in a pulse mode of strong and weak, and the human body is detected. However, the device can only passively sense the infrared signal of the human body, and when the human body is static, the process of entering a high-sensitivity area from a blind area is not available, so that the human body cannot be detected. For example, in a bedroom, a meeting room, etc., when a person sits down and moves slightly or is still, the infrared pyroelectric sensor cannot detect whether the person is present, and thus misjudgment can be made.
Besides the infrared sensor, radar transmission and reception can be adopted for detection. However, most human presence sensing devices on the market can only detect moving human bodies, and cannot detect if the human bodies are still. If a complex detection means or a detection instrument is adopted to detect the motionless human body, the cost performance is low, and the popularization and the application are not facilitated.
Disclosure of Invention
An object of the utility model is to overcome current infrared pyroelectric sensor's not enough, provide a human body and have sensing device, the device can carry out the perception to static human body, can carry out the perception to the human body of motion again to synthesize and confirm whether there is the human body to exist in the detection range.
Human existence sensing device include: a sensing signal processing assembly comprising: the pyroelectric infrared sensor comprises a Fresnel lens, a pyroelectric sensor and a signal processing circuit board; the Fresnel lens and the pyroelectric sensor are used in a matched mode and are fixed on the signal processing circuit board; a drive assembly, comprising: the stepping motor and the stepping motor driving circuit board; the stepping motor is fixed on the stepping motor driving circuit board; the rotating assembly is arranged between the sensing signal processing assembly and the driving assembly and drives the sensing signal processing assembly to move under the driving of the driving assembly; and the flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly.
According to a further feature of the human presence sensing apparatus of the present invention, the rotating assembly may include a support plate and a rotating shaft; the supporting plate is fixed below the signal processing circuit board; one end of the rotating shaft is connected into the stepping motor, and the other end of the rotating shaft is connected into the supporting plate, so that the rotating shaft drives the supporting plate to rotate when the stepping motor rotates.
According to a further feature of the human presence sensing apparatus of the present invention, the rotating assembly includes a support post, a rotating bracket, and a rotating shaft; the supporting column is fixed between the signal processing circuit board and the stepping motor driving circuit board; the rotating support penetrates through a hollow groove of the signal processing circuit board from the lower part and is connected with the Fresnel lens; one end of the rotating shaft is connected into the stepping motor, and the other end of the rotating shaft is connected into the rotating support, so that the rotating support is driven to rotate through the rotating shaft when the stepping motor rotates.
According to a further feature of the human presence sensing apparatus of the present invention, the rotating assembly includes a support plate, a lead screw, left and right limit brackets, and a lead screw nut drive member; the supporting plate is fixed below the signal processing circuit board; one end of the screw rod is connected into the stepping motor, and the other end of the screw rod is fixed on the left and right limiting brackets on the driving circuit board of the stepping motor; one end of the screw rod nut transmission part is a screw rod nut which is sleeved on the screw rod, and the other end of the screw rod nut transmission part is connected into the supporting plate, so that when the stepping motor rotates, the rotary motion of the screw rod is converted into linear motion through the screw rod nut transmission part, and the supporting plate is driven to move in a left-right translation mode.
According to human presence sensing device's further characteristic, the size of every lens unit of fresnel lens inlayer is dwindled, and the interval between each lens unit is widened and light tight.
Human existence sensing device have following beneficial effect:
(1) The utility model discloses a fresnel lens and pyroelectric sensor regard as sensing signal processing's core element, simultaneous design drive assembly and drive assembly make fresnel lens be in the motion state, the infrared ray that the human body sent just can be constantly in turn from "blind area" entering "high sensitive area", just so make received infrared signal with neglecting strong and weak pulse form input, cooperation rear end code is handled, reach discernment motion or static human body, no matter someone is motion or static can all detect in addition to also be as long as fresnel lens is preceding.
(2) The device provides different drive assembly, and the homoenergetic makes fresnel lens rotatory or translation, can detect motion or static human existence in certain detection range. Different algorithm processes can be designed on the basis of the hardware, and programs for processing motor driving and optical detection can be designed.
(3) Based on the mobilizable characteristics of fresnel lens of device, the utility model discloses still further improved fresnel lens's design, reduced the size of every lens unit of fresnel lens inlayer, the interval between each lens unit is widened and light-tight, has increased the detection leap distance between "high sensitive area" and "blind area" to reach the degree of accuracy and the stability that the suppression interference signal improves the detection.
(4) The device can adopt ordinary built-in power supply or external power supply, can practice thrift a large amount of electric energy and increase the life-span of consumer.
(5) Device convenient assembling, economical and practical, convenient to popularize and apply.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a human presence sensing device according to the present invention.
Fig. 2 is a schematic structural view of another embodiment of the human presence sensing device of the present invention.
Fig. 3 is a schematic structural view of yet another embodiment of the human presence sensing apparatus of the present invention.
Fig. 4 is a schematic block diagram of a human presence sensing device according to the present invention.
Reference numerals:
1: a Fresnel lens; 2: a pyroelectric sensor; 3: a signal processing circuit board; 4: a support plate; 5: a rotating shaft; 6: the stepping motor drives the circuit board; 7: a stepping motor; 8: arranging wires; 9: a feed screw nut transmission member; 10: a left and a right limit brackets; 11: a screw rod; 12: a support pillar; 13, rotating the bracket; 14: hollowing out the grooves; 15: a single chip microcomputer; 16: a relay.
Detailed Description
The present invention will now be described in detail by way of specific embodiments with reference to the accompanying drawings.
The first embodiment is as follows:
the human body presence sensing device of the present invention, as shown in fig. 1, is a human body presence sensing device that can rotate left and right. The device comprises four parts:
a sensing signal processing assembly, comprising: fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3. The fresnel lens 1 and the pyroelectric sensor 2 are used in a matched manner and are fixed on the signal processing circuit board 3.
(II) a drive assembly comprising: a stepping motor 7 and a stepping motor drive circuit board 6. The stepping motor 7 is fixed to the stepping motor drive circuit board 6.
(III) a rotating assembly comprising: a support plate 4 and a rotation shaft 5. The support plate 4 is fixed below the signal processing circuit board 3. One end of the rotating shaft 5 is connected into the stepping motor 7, and the other end is connected into the support plate 4, so that the support plate 4 is driven to rotate by the rotating shaft 5 when the stepping motor 7 rotates.
And the (IV) flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly.
When the Fresnel lens is used specifically, when a human body is in front of the Fresnel lens 1, no matter the human body moves or is static, the stepping motor 7 rotates clockwise or anticlockwise in sequence under the control of a program (the rotation angle and the rotation speed can be set according to requirements) to drive the Fresnel lens 1 and the pyroelectric sensor 2 to rotate, and the pyroelectric sensor 2 can detect a person and send a signal. When the human body leaves the detection range of the fresnel lens 1 for a certain time (for example, 1 minute or other set time), the stepping motor 7 is stopped.
Example two:
the human body presence sensing device of the present invention, as shown in fig. 2, is a human body presence sensing device that can rotate left and right. The device includes four parts:
a sensing signal processing assembly, comprising: fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3. The fresnel lens 1 and the pyroelectric sensor 2 are used in a matched manner and are fixed on the signal processing circuit board 3.
(II) a drive assembly comprising: a stepping motor 7 and a stepping motor drive circuit board 6. The stepping motor 7 is fixed to the stepping motor drive circuit board 6.
(III) a rotating assembly comprising: a support column 12, a rotating bracket 13 and a rotating shaft 5. The support column 12 is fixed between the signal processing circuit board 3 and the stepping motor drive circuit board 6. The rotating support 13 is connected with the Fresnel lens 1 from the lower part through the hollow groove 14 of the signal processing circuit board 3. One end of the rotating shaft 5 is connected into the stepping motor 7, and the other end is connected into the rotating bracket 13, so that the rotating bracket 13 is driven to rotate by the rotating shaft 5 when the stepping motor 7 rotates.
And the (IV) flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly.
When the Fresnel lens is used specifically, when a human body is in front of the Fresnel lens 1, no matter the human body moves or is static, the stepping motor 7 rotates clockwise or anticlockwise in sequence under the control of a program (the rotation angle and the rotation speed can be set according to requirements), the Fresnel lens 1 is driven to rotate, and the pyroelectric sensor 2 can detect the human body and send out signals. When the human body leaves the detection range of the fresnel lens 1 for a certain time (for example, 1 minute or other set time), the stepping motor 7 is stopped.
Example three:
human existence sensing device, as shown in fig. 3, is a human existence sensing device that can be moved from left to right. The device includes four parts:
a sensing signal processing assembly, comprising: fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3. The fresnel lens 1 and the pyroelectric sensor 2 are used in a matched manner and are fixed on the signal processing circuit board 3.
(II) a drive assembly comprising: a stepping motor 7 and a stepping motor drive circuit board 6. The stepping motor 7 is fixed to the stepping motor drive circuit board 6.
(III) a rotating assembly comprising: the device comprises a support plate 4, a screw rod 11, a left limiting bracket 10, a right limiting bracket 10 and a screw rod nut transmission piece 9. The support plate 4 is fixed below the signal processing circuit board 3. One end of the screw rod 11 is connected into the stepping motor 7, and the other end is fixed in a left and right limiting bracket 10 on the stepping motor driving circuit board 6. One end of the screw-nut transmission member 9 is a screw-nut which is sleeved on the screw 11, and the other end is connected with the support plate 4, so that when the stepping motor 7 rotates, the rotary motion of the screw 11 is converted into linear motion through the screw-nut transmission member 9, and the support plate 4 is driven to move horizontally.
And the (IV) flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly.
When the Fresnel lens is used specifically, when a human body is in front of the Fresnel lens 1, no matter the human body moves or is static, the stepping motor 7 rotates clockwise or anticlockwise in sequence under the control of a program (the rotation angle and the rotation speed can be set as required), the Fresnel lens 1 and the pyroelectric sensor 2 which are connected with the lead screw through the lead screw nut transmission piece move left and right, the lead screw is provided with a left limiting support and a right limiting support 10, and the pyroelectric sensor 2 can detect a person and send signals. When the human body leaves the detection range of the fresnel lens 1 for a certain time (for example, 1 minute or other set time), the stepping motor 7 is stopped.
Figure 4 shows the working principle of the human presence sensing device according to the invention. When someone is in front of the fresnel lens 1, infrared heat radiation of a human body is focused on the pyroelectric sensor 2 through the fresnel lens 1, a signal processing circuit board 3 processes signals detected by the pyroelectric sensor 2 and converts the signals into pulse signals, once the single chip microcomputer 15 detects the pulse signals, the single chip microcomputer sends instructions to the stepping motor driving circuit 6, so that the stepping motor 7 regularly rotates clockwise and anticlockwise in sequence, the fresnel lens 1 is driven to rotate left and right, and action instructions are sent to the relay 16. The singlechip 15 is arranged on the signal processing circuit board 3, and the relay 16 is arranged on the stepping motor driving circuit 6.
An exemplary program for a human presence sensing device: when the human body existence sensing device is powered on, a program is started and initialized, the human body existence sensing device starts to work, the single chip microcomputer always detects whether a pulse signal from the signal processing circuit board exists, and if the pulse signal is not detected, the cyclic detection is continuously carried out; if the pulse signal is detected, the relay is closed, and a clockwise rotation instruction and an anticlockwise rotation instruction are sequentially sent to the stepping motor driving circuit, and judgment whether a person exists is continuously carried out in the period, namely the pulse signal is detected; if the pulse signal is not detected, the time is delayed for 10 seconds, and if the pulse signal is still not detected during the time delay of 10 seconds, the step motor driving circuit is stopped sending instructions, the relay is disconnected, and the detection is continued.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (5)
1. A human presence sensing device, comprising:
a sensing signal processing assembly comprising: the Fresnel lens, the pyroelectric sensor and the signal processing circuit board are arranged on the base; the Fresnel lens and the pyroelectric sensor are used in a matched manner and are fixed on the signal processing circuit board;
a drive assembly, comprising: the stepping motor and the stepping motor driving circuit board; the stepping motor is fixed on the stepping motor driving circuit board;
the rotating assembly is arranged between the sensing signal processing assembly and the driving assembly and drives the sensing signal processing assembly to move under the driving of the driving assembly; and
and the flat cable comprises a data line and a power line which are led out from the sensing signal processing assembly and the driving assembly.
2. The human presence sensing device according to claim 1, characterized in that:
the rotating assembly comprises a supporting plate and a rotating shaft; the supporting plate is fixed below the signal processing circuit board; one end of the rotating shaft is connected into the stepping motor, and the other end of the rotating shaft is connected into the supporting plate, so that the rotating shaft drives the supporting plate to rotate when the stepping motor rotates.
3. The human presence sensing device according to claim 1, characterized in that:
the rotating assembly comprises a supporting column, a rotating bracket and a rotating shaft; the supporting column is fixed between the signal processing circuit board and the stepping motor driving circuit board; the rotating support penetrates through a hollow groove of the signal processing circuit board from the lower part to be connected with the Fresnel lens; one end of the rotating shaft is connected into the stepping motor, and the other end of the rotating shaft is connected into the rotating support, so that the rotating support is driven to rotate through the rotating shaft when the stepping motor rotates.
4. The human presence sensing device according to claim 1, wherein:
the rotating assembly comprises a supporting plate, a screw rod, a left limiting bracket, a right limiting bracket and a screw rod nut transmission piece; the supporting plate is fixed below the signal processing circuit board; one end of the screw rod is connected into the stepping motor, and the other end of the screw rod is fixed on the left and right limiting brackets on the driving circuit board of the stepping motor; one end of the screw rod nut transmission part is a screw rod nut which is sleeved on the screw rod, and the other end of the screw rod nut transmission part is connected into the supporting plate, so that when the stepping motor rotates, the rotary motion of the screw rod is converted into linear motion through the screw rod nut transmission part, and the supporting plate is driven to move in a left-right translation mode.
5. The human presence sensing device according to claim 1, wherein: the size of each lens unit of the Fresnel lens inner layer is reduced, and the space between each lens unit is widened and light-proof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953788.8U CN217879676U (en) | 2022-04-24 | 2022-04-24 | Human existence sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953788.8U CN217879676U (en) | 2022-04-24 | 2022-04-24 | Human existence sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217879676U true CN217879676U (en) | 2022-11-22 |
Family
ID=84087324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220953788.8U Active CN217879676U (en) | 2022-04-24 | 2022-04-24 | Human existence sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217879676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207340A1 (en) * | 2022-04-24 | 2023-11-02 | 广州南方学院 | Human body presence sensing apparatus |
-
2022
- 2022-04-24 CN CN202220953788.8U patent/CN217879676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207340A1 (en) * | 2022-04-24 | 2023-11-02 | 广州南方学院 | Human body presence sensing apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102510601B (en) | Infrared sensing device for detecting static human bodies | |
| CN217879676U (en) | Human existence sensing device | |
| CN102927029B (en) | Steering control device and electric fan | |
| CN102155995B (en) | Infrared human body sensing device with all-around human body sensing capability | |
| WO2023207340A1 (en) | Human body presence sensing apparatus | |
| CN207437419U (en) | A kind of Intelligent fan controller based on bluetooth | |
| CN206249087U (en) | A kind of intelligent and energy saving system for being applied to unattended shop | |
| CN111664103A (en) | Intelligent electric fan and control method for supplying air according to human body position | |
| CN204408480U (en) | A kind of infrared spherical camera | |
| JP3098677B2 (en) | Human body detection device | |
| CN201983863U (en) | Novel infrared human body induction device | |
| CN102338117A (en) | Numerical control electric fan | |
| CN200965718Y (en) | Rotary pyroelecteic detector | |
| CN212337698U (en) | Intelligent electric fan | |
| CN212723972U (en) | Wireless intelligent touch panel with self-adaptive rotation function | |
| CN214334016U (en) | Pyroelectric sensor capable of detecting static human body | |
| CN109995316B (en) | Light following device and light following method of light following solar cell bracket | |
| CN203069273U (en) | Versatile human body induction device | |
| CN206946429U (en) | Electric heater and its control device | |
| CN114165154A (en) | Intelligent photovoltaic shutter burglar alarm | |
| CN103399351A (en) | Oscillating active human body detector for detecting dynamic and static human body and detection method of swing-type active human body detector | |
| CN201926932U (en) | Autorotation control system for sensor node support | |
| CN201983862U (en) | Infrared human body sensing device with all-state human body sensing capability | |
| CN214660969U (en) | Automatic fan of control | |
| CN214309155U (en) | Sensor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |