CN208459222U

CN208459222U - A kind of device that control PM2.5 sensor opens and closes

Info

Publication number: CN208459222U
Application number: CN201821182996.2U
Authority: CN
Inventors: 邓自强; 曾帅; 张飞; 付巍慎
Original assignee: Wuhan Xinye Electronic Technology Co Ltd
Current assignee: Ecarx Hubei Tech Co Ltd
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2019-02-01
Anticipated expiration: 2028-07-25

Abstract

The utility model provides a kind of device that control PM2.5 sensor opens and closes, it is characterized by comprising NTC temperature sensor, single-chip microcontroller, PM2.5 sensors, respectively with monolithic mechatronics, the single-chip microcontroller is also connected with LCD display and power-supply system for the NTC temperature sensor and PM2.5 sensor.Present apparatus structure is simple, easy to use, can be when environment temperature is more than PM2.5 senor operating temperature, timely closure sensor, prevents sensor from generating the data of mistake, belongs to sensor field.

Description

A kind of device that control PM2.5 sensor opens and closes

Technical field

The utility model relates to sensor field more particularly to a kind of devices that control PM2.5 sensor opens and closes.

Background technique

PM2.5 sensor is called dust sensor, dust sensor, can be used to detect the dust in our surrounding airs Concentration, i.e. PM2.5 value size.The temperature range that each PM2.5 sensor has it to work normally, when environment temperature is more than When PM2.5 senor operating temperature, sensor can generate the PM2.5 value of mistake, and the system where sensor is not aware that at this time Sensor has failed, to continue to use the wrong data of failure sensor generation.In such cases often because of mistake Data cause system to execute the operation of mistake to generating undesirable consequence, it is therefore desirable to which a kind of novel device solves this Problem.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of dress that control PM2.5 sensor opens and closes It sets.

To achieve the above objectives, the present invention provides the following technical solutions:

A kind of device that control PM2.5 sensor opens and closes, it is characterised in that: including NTC temperature sensor, monolithic Machine, PM2.5 sensor, the NTC temperature sensor and PM2.5 sensor are respectively with monolithic mechatronics, and the single-chip microcontroller is also It is connected with LCD display and power-supply system.

The beneficial effects of the utility model are: the utility model can close in time when environment temperature is more than senor operating temperature PM2.5 sensor is closed, prevents it from generating the data of mistake, and inform system sensor has failed at this time, thus after failure Can be coped with.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the utility model flow chart.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

The device that a kind of control PM2.5 sensor as illustrated in fig. 1 and 2 opens and closes, it is characterised in that: including NTC Temperature sensor 1, single-chip microcontroller 2, PM2.5 sensor 3, the NTC temperature sensor 1 and PM2.5 sensor 3 respectively with single-chip microcontroller 2 electrical connections, the single-chip microcontroller 2 are also connected with LCD display 4 and power-supply system 5.On LCD display 4 can displays temperature value and PM2.5 numerical value, power-supply system 5 provide device institute electricity demand.

The model CMFA103J3500HANT of device NTC temperature sensor 1, the model of single-chip microcontroller 2 The model SM-UART-01L+ of stm32f105rbt6, PM2.5 sensor 3, the model LCD_12864 of LCD display 4.

NTC temperature sensor 1 passes to single-chip microcontroller 2 after perceiving ambient temperature, by temperature data, and single-chip microcontroller 2 is according to NTC The opening and closing for the temperature data control PM2.5 sensor 3 that the transmitting of temperature sensor 1 comes, if temperature is in PM2.5 sensor 3 Within the scope of normal working temperature, single-chip microcontroller 2, which then controls, opens the normal work of PM2.5 sensor 3；If temperature is more than PM2.5 sensing The normal operating temperature range of device 3, single-chip microcontroller 2, which then controls, closes PM2.5 sensor 3, it is avoided to generate the PM2.5 number of mistake According to, and inform single-chip microcontroller 2 PM2.5 sensor 3 is no longer valid at this time, thus can be coped with after failure.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases The technical field of pass, is also included in the patent protection scope of the utility model.

Claims

1. a kind of device that control PM2.5 sensor opens and closes, it is characterised in that: including NTC temperature sensor (1), list Piece machine (2), PM2.5 sensor (3), the NTC temperature sensor (1) and PM2.5 sensor (3) are electric with single-chip microcontroller (2) respectively Connection, the single-chip microcontroller (2) are also connected with LCD display (4) and power-supply system (5).