CN209879025U - Intelligent household sensor based on infrared geminate transistors - Google Patents

Abstract

The utility model discloses an intelligence house sensor based on infrared geminate transistors, 3.3V constant voltage power supply circuit is changeed to its integrated 5V of electronic circuit board, two infrared geminate transistors detector circuit and ESP8266 wireless WIFI module, infrared geminate transistors detection circuit is by infrared transmitting tube, electronic component such as infrared receiving tube and voltage comparator constitutes, infrared geminate transistors detector detects someone and gets into the detection scope, through voltage comparison and signal amplification circuit, pass into the procedure of moving on the ESP8266 wireless WIFI module with the signal and handle, be provided with two infrared geminate transistors detectors on the circuit board, become certain contained angle between these two infrared geminate transistors detectors, time through detecting human entering detection scope is successively and the time difference, realize human moving direction's detection, transmit intelligent house gateway or cloud ware with the detection result through WIFI at last. The utility model discloses intelligence house sensor simple structure, low cost, the mountable realizes the people and comes in and go out the detection in room outside the door frame.

Description

Intelligent household sensor based on infrared geminate transistors

Technical Field

The utility model relates to an intelligence house sensor, especially an intelligence house sensor based on infrared geminate transistor.

Background

Along with the development of smart homes, more and more smart sound boxes, smart switches, smart sockets, smart lamps and other smart home products appear in the market, the smart home products are gradually accepted by consumers, the smart home control mode in the market at present mainly comprises smart sound box control, mobile phone control, intelligent panel control and sensor automatic control, in the actual use of users, the smart sound box control and mobile phone control modes provide great convenience for smart home equipment, but under certain conditions, such as in a hurry, the control modes even do not directly adopt the traditional switch button mode to control the equipment conveniently and quickly, and therefore, the automatic induction control mode is very important. And the sensor is an important component of the automatic induction control.

The scheme that the sensor that surveys people's discrepancy in the existing market adopted mainly is pyroelectric infrared sensor scheme, and pyroelectric infrared sensor's trigger condition is the removal that detects the human body, and people are static or move very slow time just can't trigger, can't realize detecting whether someone in the room through pyroelectric infrared sensor, and another kind of wireless door magnetism commonly used can detect opening of door and window and close, but can't detect people's discrepancy.

SUMMERY OF THE UTILITY MODEL

In order to detect whether people come in and go out of a room, the intelligent home sensor can be installed outside a door frame and is not influenced by opening and closing the door, whether people pass through the door is detected, the direction of the people coming in and going out of the door is detected, whether people exist in the room is recorded, the number of people getting in and out of the room can be recorded, and the control of intelligent home equipment is realized, the human body detection part of the intelligent home sensor consists of two groups of infrared receiving and transmitting pair detection circuits, each group of infrared receiving and transmitting pair detection circuits is provided with an infrared transmitting tube and an infrared receiving tube, when people pass through a detection range, infrared light rays emitted by the infrared transmitting tube are reflected by the human body, the infrared receiving tubes receive the infrared light rays, signals are transmitted to a processor of a Shixin ESP8266 wireless WIFI module through a voltage comparison and amplification circuit to be processed, and finally induction signals are transmitted to an intelligent home gateway, realize human detection, set up two sets of infrared geminate transistors detection circuitry, when the people passes through two sets of infrared geminate transistors detectors, there is a time difference, according to this time difference, through the programming, can discern the direction that the human body came in and out on ESP8266 wireless WIFI module, the module mountable is in the door frame, realizes the detection that the people came out and came into the door, through the linkage cooperation with intelligent home gateway to realize intelligent device's automatic control.

The utility model discloses intelligence house sensor is inside to change 3.3V power part, infrared geminate transistors detection part, happy Xin ESP8266 wireless WIFI module by 5V and constitutes, and infrared geminate transistors detection part comprises two sets of infrared geminate transistors detection circuitry, and power and infrared receiving and dispatching detection part are integrated on a PCB, and wireless WIFI module welds on this PCB, and PCB installs in plastic casing, and this sensor passes through outside 5V mains operated, and the detection distance is 10CM-20 CM.

The principle of the intelligent home sensor is that 5V voltage input from an external power supply is subjected to voltage reduction and voltage stabilization treatment through the 5V-to-3.3V voltage reduction module to supply power to the whole circuit, the output of the infrared geminate transistor detection part is connected with an IO port of the ESP8266 wireless WIFI module, when a person passes through a detection area of infrared geminate transistors, the infrared geminate transistor detection circuit outputs signals to the ESP8266 wireless WIFI module, the ESP8266 wireless WIFI module is a Lexin ESP8266 wireless SOC module, the module supports a real-time operating system and a Wi-Fi protocol stack, and sensing signals can be sent to an intelligent home gateway or a cloud platform through programming WIFI.

The intelligent home sensor is provided with two groups of infrared geminate transistor detector circuits, the output of each group of circuits is connected with one IO port of the ESP8266 wireless WIFI module, the two IO ports are connected in total, after the infrared geminate transistor detectors detect objects in a detection area, a low level signal is generated, the ESP8266 wireless WIFI module detects the level jump, and the moving direction of a target is determined by detecting the time of the two groups of level jumps.

The utility model has the advantages that: this intelligence house sensor detection part adopts infrared geminate transistors, and the circuit is simple, only needs main component such as infrared transmitting tube and infrared receiving tube, voltage comparator, and the low price adopts two sets of infrared geminate transistors detectors, becomes certain contained angle between these two sets of infrared geminate transistors detector probes, inserts the time difference of detection range according to the people, can differentiate the direction that the human body came in and go out.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an internal structure diagram of an embodiment of the present invention

FIG. 2 is a diagram of the overall structure of the embodiment of the present invention

In the figure, 1, infrared transmitting tubes 1 and 2, infrared receiving tubes 1 and 3, infrared transmitting tubes 2 and 4, infrared receiving tubes 2 and 5, Micro USB jacks, 6, a plastic shell, 7, an ESP8266 WiFi module, 8, a circuit board and 9, a Micro USB socket are arranged in sequence.

Detailed Description

In fig. 1, a 5V to 3.3V power supply and an infrared pair tube detection circuit are integrated on a circuit board (8), an ESP8266 wireless WIFI module is mounted on the circuit board, an infrared transmitting tube 1 (1), an infrared receiving tube 1 (2), and a voltage comparison and amplification circuit on the circuit board (8) form an infrared pair tube detector 1, the output of the infrared pair tube detector 1 is connected with an IO port of the ESP8266 wireless WIFI module (7), an infrared transmitting tube 2 (3), an infrared receiving tube 2 (4) and a peripheral circuit form an infrared pair tube detector 2, the infrared pair tube detector 2 is similar to the infrared pair tube detector 1, and is connected with another IO port of the ESP8266 wireless WIFI module (7) through the voltage comparison and amplification circuit. An included angle of 30 degrees to 45 degrees is formed between the two infrared pair tube detectors, when a person moves from one infrared pair tube detector to the other infrared pair tube detector, a time difference exists, the time difference and the time sequence can be detected through programming on the ESP8266 wireless WIFI module (7), and therefore the moving direction of the person is detected. And a Micro USB socket (9) is arranged at the position, opposite to the infrared geminate transistor detector, on the circuit board.

In fig. 2, an external 5V power supply supplies power to the whole circuit board through the Micro USB jack (5), the whole circuit board is mounted in a plastic shell (6) with 42mm x 18mm, and the infrared transmitting tube and the infrared receiving tube are partially exposed outside the plastic shell (6).

Claims (3)

1. The utility model provides an intelligence house sensor based on infrared geminate transistors comprises electronic circuit board and plastic casing, and electronic circuit board contains 5V and changes 3.3V constant voltage power supply circuit, infrared geminate transistor detection circuitry and the wireless WIFI module of ESP8266, its characterized in that: 5V changes 3.3V constant voltage power supply circuit, infrared geminate transistors detection circuitry, ESP8266 wireless WIFI module integration on a PCB, and whole electronic circuit board is installed in the plastic casing, and two infrared geminate transistors detectors of infrared geminate transistors detection circuitry integration, its output pin link to each other with the IO mouth of ESP8266 wireless WIFI module, are certain contained angle between two infrared geminate transistors detectors.

2. The intelligent household sensor based on the infrared pair transistors as claimed in claim 1, which is characterized in that: the PCB is provided with a Micro USB socket serving as a 5V power input interface, an ESP8266 wireless WIFI module interface is reserved on the PCB, the ESP8266 wireless WIFI module is welded on the PCB as an electronic element, one side opposite to the Micro USB socket is provided with an infrared transmitting tube and an infrared receiving tube to form an infrared geminate transistor detector 1, the plastic cover plate side is also provided with an infrared transmitting tube and an infrared receiving tube to form an infrared geminate transistor detector 2, the infrared transmitting tube and the infrared receiving tube of the infrared geminate transistor detector 1 are arranged on one plane, the infrared transmitting tube and the infrared receiving tube of the infrared geminate transistor detector 2 are arranged on one plane, and the two planes form an included angle of 30-45 degrees.

3. The intelligent household sensor based on the infrared pair transistors as claimed in claim 1, which is characterized in that: the PCB is arranged in a plastic shell with 42mm x 18mm, a Micro USB power plug hole is reserved on the plastic shell, an infrared transmitting tube and an infrared receiving tube mounting hole are reserved, and the top ends of the infrared transmitting tube and the infrared receiving tube are exposed out of the plastic shell.