CN211653175U

CN211653175U - Human body infrared induction device

Info

Publication number: CN211653175U
Application number: CN202020495664.0U
Authority: CN
Inventors: 林新富; 林唐泽诚
Original assignee: Shenzhen Katt Gatt Intelligent Technology Co ltd
Current assignee: Shenzhen Katt Gatt Intelligent Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-10-09
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a human infrared sensing device, this human infrared sensing device include the singlechip, with singlechip electric connection's dynamic infrared sensor with be used for sheltering from infrared shielding mechanism, dynamic infrared sensor is including being used for receiving infrared probe, it is located to shelter from the mechanism one side of infrared probe, shelter from the mechanism include the driving piece and with the shielding piece of the output shaft of driving piece, the shielding piece can be located under the drive of driving piece the place ahead of infrared probe. The utility model discloses a human infrared induction device can realize the human detection of developments, can realize the human detection of static state again, can improve detection effect, and the reinforcing practicality promotes user experience.

Description

Human body infrared induction device

Technical Field

The utility model relates to an infrared induction technology field, in particular to human infrared induction device.

Background

As is well known, human targets are the most important and active elements in the environment, and detecting, identifying and tracking human targets in a scene have been a focus of attention. The infrared sensor is one of the sensors for detecting human body, and has been widely used in the fields of modern science and technology, national defense, industry and the like due to the advantages of accurate sensing, stable and reliable work and the like.

The working principle of the infrared sensor is as follows: when a human body passes through the detection area, the infrared sensor receives infrared rays radiated by the human body, and the infrared input quantity of the infrared sensor changes due to the movement of the human body, so that the human body induction is realized. Therefore, the current infrared sensor can only realize the detection of dynamic human bodies, but cannot detect certain specific scenes (such as the fact that the human body is located in a detection area and is still, the detection effect is influenced, the practicability is poor, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a human infrared induction system aims at solving present infrared sensor and can not detect dynamic and static human problem simultaneously.

In order to achieve the above object, the utility model provides a human infrared sensing device, this infrared sensing device include the singlechip, with singlechip electric connection's dynamic infrared sensor with be used for sheltering from infrared shielding mechanism, dynamic infrared sensor is including being used for receiving infrared probe, shelter from the mechanism and be located one side of infrared probe, shelter from the mechanism include the driving piece and with the shielding piece of the output shaft of driving piece, the shielding piece can be located under the drive of driving piece the place ahead of infrared probe.

Preferably, the driving member is a motor electrically connected to the single chip.

Preferably, the shutter is provided on a rotating shaft of the motor; alternatively, the shutter is connected to the motor by a rack and pinion.

Preferably, the human body infrared induction device further comprises a mounting frame, and the infrared probe and the motor are arranged on the mounting frame.

Preferably, the mounting frame is provided with a plurality of magnets and connecting holes.

Preferably, the human body infrared sensing device further comprises a communication module electrically connected with the single chip microcomputer.

Preferably, the dynamic infrared sensor is a pyroelectric infrared sensor, and a lens is arranged on the pyroelectric infrared sensor.

The utility model discloses technical scheme's beneficial effect lies in: the human body infrared sensing device can detect a dynamic human body through an infrared probe of a dynamic infrared sensor; and the infrared probe senses the human body for the last time, but when the dynamic human body is not detected, the driving piece drives the shielding piece to shield the infrared probe for the first time and reset, whether a static human body exists or not is judged according to the change of the infrared input quantity of the infrared probe, and the static human body detection is realized. Compared with the current infrared detection mode, the infrared induction device for the human body can realize dynamic human body detection and static human body detection, can improve the detection effect, enhances the practicability and improves the user experience.

Drawings

Fig. 1 is a schematic diagram of functional modules of an embodiment of the human body infrared sensing device of the present invention.

Detailed Description

In the following, the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a human infrared sensing device, refer to fig. 1, this human infrared sensing device includes singlechip 10, with singlechip 10 electric connection's dynamic infrared sensor 20 with be used for sheltering from infrared shielding mechanism 30, dynamic infrared sensor 20 is including being used for receiving infrared probe 21, shelter from one side that mechanism 30 is located infrared probe, shelter from mechanism 30 include the driving piece and with the output shaft's of driving piece shielding piece 31, shielding piece 31 can be located infrared probe 21's the place ahead under the drive of driving piece.

It is known that any object with temperature in nature can radiate infrared rays, but the wavelength of the radiated infrared rays is different, and the wavelength of the infrared rays (energy) radiated by a human body is mainly concentrated on about 10000 nm. The dynamic infrared sensor can receive infrared rays radiated by a human body, the human body enters the detection range of the dynamic infrared sensor and moves, and the infrared input quantity of the dynamic infrared sensor changes, so that the human body is sensed. In view of the above, the human infrared sensing device that this embodiment provided is used for detecting the human body, and it includes singlechip 10, dynamic infrared sensor 20 and shelters from mechanism 30, and dynamic infrared sensor 20 includes infrared probe 21, shelters from mechanism 30 and includes driving piece and shielding piece 31, wherein: the dynamic infrared sensor 20 is electrically connected with the single chip microcomputer 10, the shielding mechanism 30 is located on one side of the infrared probe 21, and the shielding piece 31 can reach the front of the infrared probe 21 through the driving of the driving piece to shield the infrared probe. Preferably, the shutter 31 is a blade.

The human body infrared sensing device can detect a dynamic human body through an infrared probe 21 of a dynamic infrared sensor 20; when the infrared probe 21 does not detect a dynamic human body, the driving part drives the shielding piece 31 to shield the primary infrared probe 21 and reset, and whether a static human body exists or not is judged according to whether the infrared input quantity of the infrared probe 21 changes or not, so that the static human body detection is realized.

It can be understood that, when a person is in the detection range of the infrared probe 21 and the person is still, the infrared input quantity radiated by the human body and received by the infrared probe 21 is constant, the shielding piece 31 shields the detection end of the infrared probe 21 for one time and resets, the infrared input quantity changes, and thus a static human body is detected; when no person is in the detection range of the infrared probe 21, the shielding piece 31 shields the primary infrared probe 21 and resets, and the infrared input quantity of the infrared probe 21 does not change, namely, the detection range of the infrared probe is free of the person. When a dynamic human body is detected before the infrared probe 21, the driving member drives the shielding member 31 to move to shield the infrared probe 21 once after a plurality of preset seconds, so as to detect a static human body, and detect whether the human body is still after entering a detection range of the infrared probe 21.

Compared with the current infrared detection mode, the infrared induction device for the human body can realize dynamic human body detection and static human body detection, can improve the detection effect, enhances the practicability and improves the user experience.

In a preferred embodiment, the driving member is a motor 32 electrically connected to the single chip microcomputer 10. The motor 32 is operated by receiving a control instruction of the singlechip 10 to drive the shielding piece 31 to move, the motor 32 is convenient to drive, forward and reverse rotation can be realized, and the shielding piece has the advantages of reliable operation, low price and the like.

Further, the shutter 31 is provided on the rotation shaft of the motor 32; that is, the shutter 31 is directly connected to the rotation shaft of the motor 32, and the infrared probe 21 is shielded by rotating the shutter 31 by the motor 32. The infrared probe 21 can be shielded once by one rotation of the shielding member 31.

Alternatively, the shutter 31 is connected to the motor 32 through a rack and pinion, that is, a gear is provided on a rotation shaft of the motor 32, and the shutter 31 is engaged with the gear through the rack. That is, a rack and pinion assembly is disposed between the motor 32 and the shutter 31, the motor 32 indirectly drives the shutter 31 through the rack and pinion assembly, specifically, the gear is fixed on a rotating shaft of the motor 32 and can rotate therewith, the shutter 31 is fixed on a rack engaged with the gear, and the rack is disposed in a sliding manner. The rotation shaft of the motor 32 rotates to drive the gear to rotate, the gear rotates forward and backward to drive the rack and the shielding piece 31 to reciprocate, and the shielding piece 31 reciprocates once to shield the infrared probe 21 once.

In a preferred embodiment, the human body infrared sensing device further comprises a mounting frame, and the infrared probe 21 and the motor 32 are arranged on the mounting frame.

Wherein, the mounting frame is of a frame structure, and the infrared probe 21, the motor 32 and other devices can be arranged on the mounting frame by screws. Moreover, based on the above embodiment, when the rack is provided, the guide rail slider assembly may be provided on the mounting frame to mount the rack on the slider, thereby achieving the sliding arrangement of the rack. In this embodiment, realize the unified setting of other each devices of human infrared induction device through the installing frame, compact structure improves the convenience of use.

Furthermore, a plurality of magnets and connecting holes are arranged on the mounting frame. In order to facilitate the assembly and disassembly of the body infrared sensing device, the mounting frame is provided with the magnet and the connecting hole, so that the magnet can be fixed on the support made of magnetically attractable metal such as iron in an adsorption manner, and the connecting hole can be used for penetrating through a screw to be installed and fixed on a wall and other positions.

In a preferred embodiment, referring to fig. 1, the human body infrared sensing device further includes a communication module 40 electrically connected to the single chip microcomputer 10. Preferably, the communication module 40 adopts a wifi module, a zigbee module and/or a bluetooth module, and the single chip microcomputer 10 can be connected to the gateway through the communication module 40, so as to realize the connection between the human infrared sensing device and the upper end server, and can receive the instruction of the server to set the relevant parameters.

In a preferred embodiment, the dynamic infrared sensor 20 is a pyroelectric infrared sensor, and a lens is disposed on the pyroelectric infrared sensor. Preferably, the dynamic infrared sensor 20 is a pyroelectric infrared sensor, and has low power consumption, good concealment, and low cost.

The lens is a Fresnel lens which has the function of gathering and concentrating infrared rays radiated by a human body so as to further improve the detection sensitivity and the detection distance. In addition, an optical filter can be added at the detection end of the pyroelectric infrared sensor to avoid light influence, a band-pass amplifier is arranged to amplify an electric pulse signal output by the band-pass amplifier, and a voltage comparator is arranged to prevent noise interference.

The above is only the part or the preferred embodiment of the present invention, no matter the characters or the drawings can not limit the protection scope of the present invention, all under the whole concept of the present invention, the equivalent structure transformation performed by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the protection scope of the present invention.

Claims

1. The utility model provides a human infrared sensing device, its characterized in that, including the singlechip, with singlechip electric connection's dynamic infrared sensor with be used for sheltering from infrared shielding mechanism, dynamic infrared sensor is including being used for receiving infrared probe, it is located to shelter from the mechanism one side of infrared probe, shelter from the mechanism include the driving piece and with the shielding piece of the output shaft of driving piece, shielding piece can be located under the drive of driving piece the place ahead of infrared probe.

2. The human body infrared sensing device of claim 1, wherein the driving member is a motor electrically connected to the single chip microcomputer.

3. The human body infrared sensing device of claim 2, wherein the shielding member is provided on a rotation shaft of the motor; alternatively, the shutter is connected to the motor by a rack and pinion.

4. The human body infrared sensing device of claim 3, further comprising a mounting frame, wherein the infrared probe and the motor are disposed on the mounting frame.

5. The human body infrared sensing device of claim 4, wherein the mounting frame is provided with a plurality of magnets and connecting holes.

6. The human body infrared sensing device of claim 1, further comprising a communication module electrically connected with the single chip microcomputer.

7. The human body infrared sensing device of claim 1, wherein the dynamic infrared sensor is a pyroelectric infrared sensor, and a lens is disposed on the pyroelectric infrared sensor.