CN205449953U - Air detector of function is shaken in area - Google Patents

Abstract

The utility model discloses an air detector with a shaking function. An instrument chip, a wireless communication module and a detection module; the detection module includes a formaldehyde sensor, a PM2.5 sensor, a TVOC sensor and a temperature and humidity sensor. The beneficial effects achieved by the utility model: 1) Using high-precision formaldehyde sensors and PM2.5 sensors can accurately measure the concentration of other harmful substances in the air; If you don’t understand the problem, quickly help users analyze the meaning of the detection data and provide recommended solutions; 3) This detector can recognize the approach of the human body, automatically light up the screen, and automatically turn off when there is no one, which not only reduces energy consumption , and stylish smart.

Description

An air detector with a shaking function

technical field

The utility model relates to an air detector with a shaking function, which belongs to the technical field of environmental detection instruments.

Background technique

With the acceleration of socialist modernization, the problem of air quality has gradually become prominent. Whether it is PM2.5 or formaldehyde, it is like an invisible killer that constantly threatens people's health. In the process of home furnishing, formaldehyde is still widely used. At present, there are many boards with excessive formaldehyde in the market, deceiving consumers. Formaldehyde can cause many serious harms to the human body, therefore, more and more people begin to pay attention to the problem of formaldehyde. On the other hand, with the rapid development of China's industrialization process, more and more PM2.5 has come into people's sight, its harm and ubiquity, so that the general public began to pay attention to the problem of PM2.5 index. Therefore, the multi-functional air detector has increasingly become a just-needed item in people's lives.

Utility model content

In order to solve the deficiencies of the prior art, the purpose of this utility model is to provide an intelligent civil multifunctional air detector, which can analyze and detect air quality in various aspects, and is easy to use and easy to operate.

In order to achieve the above object, the utility model adopts the following technical solutions:

An air detector with a shaking function is characterized in that it includes a detector shell, a main control chip, a power control circuit connected to the main control chip, a display module, an accelerometer and a gyroscope chip, and a wireless communication module and a detection module; the detection module includes a formaldehyde sensor, a PM2.5 sensor, a TVOC sensor and a temperature and humidity sensor; the accelerometer and gyroscope chip are used to identify the horizontal and vertical posture of the instrument, automatically adjust the interface of the display module, and use To identify the user's "shake" action; the detector shell is provided with a temperature and humidity detection hole, a PM2. 5 sensors, formaldehyde sensors, TVOC sensors correspond one by one.

The aforementioned air detector with a shake function is characterized in that the casing of the detector also includes airflow vents, power on and off buttons, calibration keys and charging slots.

The aforementioned air detector with a shake function is characterized in that a bracket is provided on the back of the detector casing.

The aforementioned air detector with a shake function is characterized in that, after the accelerometer and gyroscope chips recognize the user's shaking action, the wireless communication module sends the corresponding data to the user's mobile phone.

The aforementioned air detector with a shaking function is characterized in that the data includes detected real-time values, historical value curves, data analysis and corresponding solutions.

The aforementioned air detector with a shake function is characterized in that the detection module also includes a pyroelectric sensor for sensing human activities; The human body sensing hole; the pyroelectric sensor controls the brightness of the display module according to whether there is a human body in front of the detector.

The aforementioned air detector with a shake function is characterized in that the power control circuit is used to manage the charging and discharging of the lithium battery, and automatically controls the charging mode of the lithium battery according to whether the charger is connected.

The aforementioned air detector with a shaking function is characterized in that the wireless communication module includes a WIFI module and a Bluetooth module, and is connected to a mobile phone terminal through WIFI or Bluetooth to realize data transmission and remote control.

The beneficial effects achieved by the utility model: 1) Using high-precision formaldehyde sensors and PM2.5 sensors can accurately measure the concentration of other harmful substances in the air; If you don't understand the problem, quickly help users analyze the meaning of the test data and provide recommended solutions; 3) This instrument can be connected to mobile terminal APP and WeChat, making the testing instrument more fashionable and intelligent; 4) This tester The built-in accelerometer and gyroscope make the instrument of this utility model not only can be placed horizontally on the desktop, but also can be viewed vertically when hand-held; 5) The detector can recognize the approach of the human body, automatically light up the screen, and automatically turn off when there is no one, which not only reduces the Energy efficient, stylish and smart.

Description of drawings

Fig. 1 is the front structural representation of the utility model air detector;

Fig. 2 is the back structure schematic diagram of the utility model air detector;

Fig. 3 is an internal block diagram of the air detector of the present invention.

Meanings of reference signs in the figure:

1-airflow ventilation hole, 2-power switch button, 3-calibration button, 4-temperature and humidity detection hole, 5-PM2.5 detection hole, 6-LCD display, 7-human body induction hole, 8-formaldehyde detection hole, 9-TVOC detection hole, 10-bracket, 11-MicroUSB charging port.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

The utility model relates to an air detector with a shaking function, as shown in Fig. 1 and Fig. 2, wherein the airflow ventilation hole 1 mainly realizes air pressure balance in the shell and forms an air duct, which is beneficial to air circulation. The switch key 2 and the calibration key 3 are located on the side of the shell, and adopt an embedded structure. The temperature and humidity detection hole 4, the PM2.5 detection hole 5, the formaldehyde detection hole 8, and the TVOC detection hole 9 are respectively close to the internal temperature and humidity sensor, PM2.5 sensor, formaldehyde sensor, and TVOC sensor, and are used to contact the air to detect corresponding gas.

The human body sensing hole 7 is located at the edge of the display module, and the display module in this embodiment adopts a liquid crystal display 6 . When the bracket 10 on the back of the housing is pulled out, it can support the tester to be placed obliquely on the desktop. The MicroUSB charging port 11 is designed vertically with the tester to achieve the effect of no connecting wires on the side of the tester during charging and maintain the integrity of the tester.

As shown in Figure 3, the device mainly includes a main control chip, a power supply control circuit, a liquid crystal display module, an accelerometer and a gyroscope chip, a wireless communication module, a formaldehyde sensor, a PM2.5 sensor, a TVOC sensor, a temperature and humidity sensor and a thermal sensor. The discharge sensor is connected as shown in the figure.

The main control chip is mainly responsible for the signal acquisition of various sensors, data algorithm processing, liquid crystal interface display, embedded system and shake function algorithm optimization.

The accelerometer and gyroscope are responsible for the recognition and judgment of the instrument's attitude, and the recognition of the shaking action.

The formaldehyde sensor is mainly responsible for collecting the concentration of formaldehyde gas in the air. Through the principle of electrochemical detection, the concentration of formaldehyde is converted into an electrical signal, which is recognized and displayed by the main control chip. Similarly, the PM2.5 sensor, TVOC sensor, and temperature and humidity sensor convert the PM2.5 in the air, the concentration of volatile organic compounds, and the ambient temperature and humidity into electrical signals, which are processed and displayed by the main control chip.

The utility model makes the corresponding sensor contact with the air through the formaldehyde detection hole 8, the temperature and humidity detection hole 4, the PM2.5 detection hole 5, and the TVOC detection hole 9. In Figure 3, the integrated analog-to-digital converter (ADC) in the main control chip converts electrical signals into corresponding digital signals, and then performs data storage, data filtering, unit conversion and other processing, and displays the processed data through liquid crystal.

Among them, the accelerometer can quantify the motion acceleration of the device on the three axes of x, y, and z. For example, in question 3, the gyroscope can quantify the tilt angle of the device on the three axes of x, y, and z. The accelerometer and gyroscope chip are connected to the main control chip. The main control chip performs algorithm analysis based on the motion data obtained by the accelerometer and the attitude data obtained by the gyroscope to determine whether the shake operation of the device occurs. If the user shake operation is recognized , the formaldehyde, PM2.5, TVOC, temperature and humidity information and historical information detected by the current equipment are sent to the mobile terminal through the wireless module.

The wireless module includes the wifi module and the bluetooth module, and the mobile terminal includes WeChat and the application software APP to present the obtained information to the user. In this embodiment, the wifi module uses the ESP-12E chip module, and the Bluetooth module uses the NRF51822 chip module.

In this embodiment, the liquid crystal display module includes a liquid crystal display and a drive control circuit. The liquid crystal display is a 3.5-inch TFTLCD liquid crystal screen, and the drive circuit mainly realizes boosting to provide effective power supply for the liquid crystal display.

The power supply control circuit uses the professional charging and discharging chip MPS2633, which can effectively manage the charging and discharging of the lithium battery and increase the service life of the battery.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and deformations can also be made. And deformation should also be regarded as the protection scope of the present utility model.

Claims (8)

1. band shakes an air detection instrument for function, it is characterized in that, including detector shell, main control chip, the power control circuit being connected with described main control chip respectively, display module, accelerometer and gyroscope chip, wireless communication module and detection module；

Described detection module includes formaldehyde sensor, PM2.5 sensor, TVOC sensor and Temperature Humidity Sensor；

The interface of display module, for identification instrument figure anyhow, is done adjustment automatically, and is used for identifying that user " shakes " action by described accelerometer and gyroscope chip；

Be provided with Temperature and Humidity hole on described detector shell, PM2.5 detection hole, formaldehyde examination hole, TVOC detect hole, press close to the Temperature Humidity Sensor of detector enclosure, PM2.5 sensor, formaldehyde sensor, TVOC sensor one_to_one corresponding respectively.

A kind of band the most according to claim 1 shakes the air detection instrument of function, it is characterized in that, described detector shell also includes air flow ventilating hole, switching on and shutting down button, aligning key and charging slot.

A kind of band the most according to claim 2 shakes the air detection instrument of function, it is characterized in that, the back side of described detector shell is provided with support.

A kind of band the most according to claim 1 shakes the air detection instrument of function, it is characterized in that, after described accelerometer shakes a shake work with gyroscope chip identification user, corresponding data are sent to user mobile phone by described wireless communication module.

A kind of band the most according to claim 4 shakes the air detection instrument of function, it is characterized in that, described data include instantaneous value, history value curve, data analysis and the solution of correspondence of detection.

A kind of band the most according to claim 1 shakes the air detection instrument of function, it is characterized in that, described detection module also includes the pyroelectric sensor for perception physical activity；The human body sensing hole matched with pyroelectric sensor it is provided with on described detector shell；Whether described pyroelectric sensor has human body to be controlled display module according to detector front.

A kind of band the most according to claim 1 shakes the air detection instrument of function, it is characterized in that, described power control circuit is used for managing charging and discharging lithium battery, according to whether connect charger to automatically control the charging modes of lithium battery.

A kind of band the most according to claim 1 shakes the air detection instrument of function, it is characterized in that, described wireless communication module includes WIFI module and bluetooth module, is connected with mobile phone terminal by WIFI or bluetooth, it is achieved data transmission and remotely control.