CN212540712U

CN212540712U - Human existence detection device based on 24GHz radar sensor

Info

Publication number: CN212540712U
Application number: CN202021634397.7U
Authority: CN
Inventors: 杨跃平; 蔡福康; 褚登红; 李红魁
Original assignee: Shanghai Yangchun Intelligent Technology Co ltd
Current assignee: Shanghai Yangchun Intelligent Technology Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2021-02-12
Anticipated expiration: 2030-08-08

Abstract

The utility model provides a human existence detection device based on 24GHz radar sensor, which comprises an outer shell, an antenna shell is fixedly connected to one side of the top of the outer shell, a sensor shell is fixedly connected to one side of the middle part of the outer shell, the sensor shell is positioned on one side of the antenna shell, a plurality of threaded through holes which are distributed in a rectangular shape are arranged on one side of the outer shell, a singlechip and a ZIGBEE circuit board are fixedly connected to the inside of the outer shell, a 24GHz radar detector circuit board is fixedly connected to the inside of the sensor shell, an antenna is fixedly connected to the inside of the antenna shell, the singlechip is electrically connected with the 24GHz radar detector circuit board and the ZIGBEE circuit board, the utility model can accurately detect whether a person exists in a room by arranging the 24GHz radar detector circuit board, the antenna, the singlechip circuit and, the device can be bound to the background, the state of the background control device is used for turning off the power supply of the device in the room when no person is detected.

Description

Human existence detection device based on 24GHz radar sensor

Technical Field

The utility model belongs to the technical field of electronic equipment designs, concretely relates to human existence detection device based on 24GHz radar sensor.

Background

With the improvement of living standard of people, the passenger flow volume of the hotel is larger and larger, and the hotel is equipped with facilities more and more intelligently.

At present, in the hotel, the human existence detects and all uses infrared sensor, and infrared thermopile sensor detects whether someone, and nevertheless infrared sensor exists to detect inaccurate, many people detect the scheduling problem of false alarm, for example, a plurality of guests get into the room, and alone leaves, infrared sensor detects someone and leaves, and the room equipment is closed to the mistake, and the guest gets into the room in addition, because environmental problem, infrared sensor does not detect, leads to the indoor equipment can't open.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a human existence detection device based on 24GHz radar sensor, whether it is inaccurate to use infrared sensor to detect someone in aiming at solving present hotel, many people detect the misinformation scheduling problem, and solve a plurality of guests and get into the room, alone leave, infrared sensor detects someone and leaves, the problem that the room equipment was closed to the mistake, and solve guest and get into the room, because environmental problem, infrared sensor does not detect, lead to the problem that the equipment can't be opened in the room.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a human existence detection device based on 24GHz radar sensor, includes the shell body, shell body top one side fixedly connected with antenna housing, shell body middle part one side fixedly connected with sensor housing, and sensor housing is located antenna housing one side, shell body one side is seted up the screw thread through-hole that a plurality of is the rectangle and distributes, the inside fixedly connected with singlechip of shell body and ZIGBEE circuit board, the inside fixedly connected with 24GHz radar detector circuit board of sensor housing, the inside fixedly connected with antenna of antenna housing, singlechip and 24GHz radar detector circuit board and ZIGBEE circuit board electric connection, and singlechip and power supply circuit and drive circuit board electric connection, 24GHz radar detector circuit board disposes TTL pipe foot mouth.

In order to make can transmit data between ZIGBEE and the singlechip, as the utility model relates to an it is preferred, ZIGBEE circuit board disposes ANT pin mouth, TX pin mouth and RX pin mouth, ANT pin mouth and antenna electric connection, the singlechip disposes PA3 pin mouth, PB3 pin mouth and PA2 pin mouth, PA3 pin mouth and TX pin mouth electric connection, PA2 pin mouth and RX pin mouth electric connection, PB3 pin mouth and TTL pin mouth electric connection.

In order to make the singlechip can operate, as the utility model relates to an it is preferred, be provided with crystal oscillator circuit, singlechip internal integration sometimes clock drive circuit, power filter circuit and LED pilot lamp circuit among the drive circuit board.

In order to make the singlechip have normal operating voltage, as the utility model relates to an it is preferred, power supply circuit is provided with step-down circuit and steady voltage filter circuit.

In order to make equipment bind the backstage, the state of backstage management and control equipment, as the utility model relates to an it is preferred, the ZIGBEE circuit board carries out information communication through ANT pin mouth electric connection's antenna and other ZIGBEE in same region.

Compared with the prior art, the beneficial effects of the utility model are that:

1) by arranging the 24GHz radar detector circuit board, the antenna, the single chip microcomputer circuit and the ZIGBEE circuit board, whether people exist in a room or not can be accurately detected, the condition of multiple people can be accurately detected, and the condition that equipment in the room cannot be opened due to the fact that a guest enters the room and an infrared sensor does not detect the situation can be avoided;

2) data acquisition and uploading to the backstage can be accomplished through 24GHz radar detector circuit board, antenna, singlechip circuit and the ZIGBEE circuit board that is equipped with, can bind equipment to the backstage in addition, and the state of backstage management and control equipment is detecting under unmanned circumstances, closes light and air conditioner power in the room to and equipment reports current state, make things convenient for the restaurant to carry out guest room personnel's statistics management.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a hardware block diagram of the present invention;

fig. 3 is a circuit board diagram of the present invention.

In the figure: 1. an outer housing; 2. an antenna housing; 3. a sensor housing; 4. a threaded through hole; 5. a single chip microcomputer; 6. a ZIGBEE circuit board; 7. a power supply circuit; 8. a 24GHz radar detector circuit board; 9. a drive circuit board; 10. a TTL pin port; 11. PB3 pin port; 12. PA2 pin port; 13. an RX pin port; 14. PA3 pin port; 15. a TX pin port; 16. an ANT pin port; 17. an antenna.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a human existence detection device based on 24GHz radar sensor, including

shell body

1, 1 top one side fixedly connected with antenna housing 2 of shell body, 1 middle part one side fixedly connected with sensor housing 3 of shell body, and sensor housing 3 is located 2 one sides of antenna housing, 1 one side of shell body is seted up a plurality of and is rectangular distribution's screw thread through-

hole

4, 1 inside fixedly connected with singlechip 5 of shell body and ZIGBEE circuit board 6, 3 inside fixedly connected with 24GHz radar detector circuit board 8 of sensor housing, 2 inside fixedly connected with antennas 17 of antenna housing, singlechip 5 and 24GHz radar detector circuit board 8 and 6 electric connection of ZIGBEE circuit board, and singlechip 5 and power supply circuit 7 and 9 electric connection of drive circuit board, 24GHz radar detector circuit board 8 disposes TTL tube foot mouth 10.

Preferably, the ZIGBEE circuit board 6 is configured with an ANT pin port 16, a TX pin port 15, and an RX pin port 13, the ANT pin port 16 is electrically connected to the antenna 17, the single chip microcomputer 5 is configured with a PA3 pin port 14, a PB3 pin port 11, and a PA2 pin port 12, the PA3 pin port 14 is electrically connected to the TX pin port 15, the PA2 pin port 12 is electrically connected to the RX pin port 13, and the PB3 pin port 11 is electrically connected to the TTL pin port 10.

When the ZIGBEE circuit board is used specifically, a core chip used in the ZIGBEE circuit board 6 is CC2530 of TI, the single chip microcomputer 5 adopts the model STM32F103VET6, the PA3 pin port 14 is an RX pin of USART2 of the single chip microcomputer 5, the PA2 pin port 12 is a TX pin of USART2, the baud rate of serial port communication between the single chip microcomputer 5 and the ZIGBEE circuit board 6 can be 9600, 115200, 12500 and the like, meanwhile, when the 24GHz radar detector circuit board 8 detects a person, the TTL pin port 10 can output a high level, and otherwise, the TTL pin port 10 can output a low level.

Preferably, the driving circuit board 9 is provided with a crystal oscillator circuit, and the single chip microcomputer 5 is internally integrated with a clock driving circuit, a power filter circuit and an LED power indicator circuit.

During specific use, the crystal oscillator frequency used by the driving circuit board 9 is 8M, the PLL frequency multiplication of the single chip microcomputer 5 is 9, and the working frequency is 72M.

Preferably, the power supply circuit 7 is provided with a voltage reduction circuit and a voltage stabilization filter circuit.

When the voltage stabilizing circuit is used specifically, the power circuit 7 is mainly used for reducing the voltage of an external power supply to the working voltage of the +3.3V single chip microcomputer 5 and stabilizing the voltage of the +3.3V, so that the voltage fluctuation is prevented from interfering the normal work of the single chip microcomputer 5.

Preferably, the ZIGBEE circuit board 6 is in information communication with other ZIGBEE modules in the same area through an antenna 17 electrically connected to the ANT pin port 16.

When the ZIGBEE circuit board is used specifically, the ZIGBEE circuit board 6 can automatically form a wireless multi-hop network with surrounding ZIGBEE after being electrified, the network is a peer-to-peer network and does not need a central node, the singlechip 5 tells the ZIGBEE circuit board 6 of a target ZIGBEE address and data to be sent through a serial port, and the ZIGBEE circuit board 6 can send information to the target ZIGBEE through an optimal path.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a human existence detection device based on 24GHz radar sensor, includes shell body (1), its characterized in that: an antenna shell (2) is fixedly connected with one side of the top of the shell body (1), a sensor shell (3) is fixedly connected with one side of the middle part of the shell body (1), the sensor shell (3) is positioned at one side of the antenna shell (2), one side of the shell body (1) is provided with a plurality of thread through holes (4) which are distributed in a rectangular shape, a singlechip (5) and a ZIGBEE circuit board (6) are fixedly connected inside the outer shell (1), a 24GHz radar detector circuit board (8) is fixedly connected in the sensor shell (3), an antenna (17) is fixedly connected in the antenna shell (2), the singlechip (5) is electrically connected with the 24GHz radar detector circuit board (8) and the ZIGBEE circuit board (6), the singlechip (5) is electrically connected with the power circuit (7) and the drive circuit board (9), the 24GHz radar detector circuit board (8) is provided with a TTL pin opening (10).

2. The human presence detection device based on 24GHz radar sensor of claim 1, characterized by: the ZIGBEE circuit board (6) is provided with an ANT pin port (16), a TX pin port (15) and an RX pin port (13), the ANT pin port (16) is electrically connected with an antenna (17), the single chip microcomputer (5) is provided with a PA3 pin port (14), a PB3 pin port (11) and a PA2 pin port (12), the PA3 pin port (14) is electrically connected with the TX pin port (15), the PA2 pin port (12) is electrically connected with the RX pin port (13), and the PB3 pin port (11) is electrically connected with the TTL pin port (10).

3. The human presence detection device based on 24GHz radar sensor of claim 2, characterized by: the driving circuit board (9) is internally provided with a crystal oscillator circuit, a single chip microcomputer (5) and a clock driving circuit, a power supply filter circuit and an LED indicating lamp circuit.

4. The human presence detection device based on 24GHz radar sensor of claim 3, characterized by: the power supply circuit (7) is provided with a voltage reduction circuit and a voltage stabilization filter circuit.

5. The human presence detection device based on 24GHz radar sensor of claim 4, characterized by: the ZIGBEE circuit board (6) is in information communication with other ZIGBEE in the same area through an antenna (17) electrically connected with an ANT pin port (16).