CN210626440U

CN210626440U - Air quality detection equipment

Info

Publication number: CN210626440U
Application number: CN201921492756.7U
Authority: CN
Inventors: 徐国想
Original assignee: Shenzhen Youheng Technology Co ltd
Current assignee: Shenzhen Youheng Technology Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-26
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an air quality detection equipment, including the detector and for the battery charging system of detector power supply, the detector is used for handling the data after gathering to carry out data communication with data transmission to internet high in the clouds server through WIFI bluetooth or 4G 5G GPRS. The utility model has simple structure, the modular interface design of the sensor can lead the product to more flexibly match various parameters, and the installation of different sensors on the same set of instrument can be a new detection device; the modular access of various different interface sensors is facilitated; various wireless transmission interfaces are reserved, different data transmission requirements can be matched, and the product types are more abundant; the atmospheric pressure detection device has an atmospheric pressure detection function, and can perform effective algorithm compensation on various atmospheric environment parameters, so that the measurement precision is higher.

Description

Air quality detection equipment

Technical Field

The utility model relates to a detector technical field, concretely relates to air quality check out test set.

Background

The prior air quality detector mostly adopts an analog sensor to directly process analog signals. Once the sensor is damaged or data drifts, the sensor cannot be directly replaced, and the calibration is carried out after the sensor needs to be replaced;

in the prior air quality detection equipment, the designed wireless interface is often too single, the integration performance of the air quality detection equipment cannot be fully utilized, and various wireless communication schemes are expanded;

the prior air quality monitoring equipment does not monitor the atmospheric pressure and further does not compensate the measured data deviation caused by the atmospheric pressure;

the problem of interfaces of various sensors is always a difficulty which troubles the sensor access processor system, especially the sensor access of a multipath UART interface, and because the number of UART interfaces of a common processor is limited, the number of accessible sensors is greatly limited.

Disclosure of Invention

The utility model aims to solve the technical problem that an air quality detection equipment is provided to solve the problem of proposing among the above-mentioned background art.

The utility model discloses a realize through following technical scheme: the air quality detection equipment comprises a detector and a battery charging system for supplying power to the detector, wherein the detector is used for processing collected data and transmitting the data to an internet cloud server for data communication through WIFI/Bluetooth or 4G/5G/GPRS;

the detector comprises a processor system, an IIC bus, a serial port extension, an AD acquisition, various sensors, a clock, an electric quantity detection module, a key system, a storage device and a display system;

part of sensors transmit detected data to a processor through an IIC bus;

part of sensors transmit detected data to a processor through serial port extension;

and the partial sensors output the detected data to the processor through analog signals through AD acquisition.

As a preferred technical scheme, the power supply between the battery charging system and the detector is realized through a power conditioning circuit.

As a preferred technical scheme, the clock is electrically connected with the processor, is externally connected with a clock signal and displays accurate data, date and time after being processed by the processor.

As a preferred technical scheme, the electric quantity detection module is electrically connected with the battery charging system through the processor.

As a preferred technical scheme, the key system is electrically connected with the processor.

As a preferred technical scheme, the storage device is electrically connected with the processor, the storage device is a storage part of various sensors, and data processed by the processor is stored in the storage device.

As a preferred technical scheme, the display system is a display screen interface and a liquid crystal display part, and the display system is electrically connected with the processor.

The utility model has the advantages that:

1. the modular interface design of the sensor can enable the product to be matched with various parameters more flexibly, and the same instrument can be a new detection device by installing different sensors;

2. the modular access of various different interface sensors is facilitated;

3. various wireless transmission interfaces are reserved, different data transmission requirements can be matched, and the product types are more abundant;

4. the atmospheric pressure detection device has an atmospheric pressure detection function, and can perform effective algorithm compensation on various atmospheric environment parameters, so that the measurement precision is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the system of the present invention;

fig. 2 is the schematic diagram of the serial port expansion circuit of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the air quality detection device of the present invention includes a detector and a battery charging system for supplying power to the detector, wherein the detector is used for processing collected data and transmitting the data to an internet cloud server for data communication through WIFI/bluetooth or 4G/5G/GPRS;

a processor system: the chip with programmable digital signal processing capability can be regarded as a processor system, including MCU/DSP/CPU/CPLD and processor systems with ARM/MIPS/51 and other various processor cores.

Various sensors: the utility model discloses the sensor that indicates is air parameter measurement sensor, mainly includes: temperature, humidity, atmospheric pressure, suspended particulate matter, formaldehyde, volatile organic matter, carbon dioxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, ammonia, noise, methane, ethane, benzene, ozone, cyanide, toxic gases, and the like;

part of the sensors transmit detected data to the processor through an IIC bus, the sensors are accessed through an IIC bus interface, the IIC bus is a standard bus, and part of the sensors are provided with IIC interfaces and can be accessed to the processor through the IIC bus;

serial port expansion: the utility model provides a serial port extension circuit structure, which can extend one path of serial port to multiple paths, and is convenient for the sensor of the UART interface to be accessed;

as shown in fig. 2, CD4051/CD4052 are two different analog switch chips, and when the number of serial ports required to be expanded is less than 4, CD4052 may be used for expansion, and if the number of serial ports is more than 4, a serial port expansion mode of CD4051 is adopted, where U1/U2 is connected to RX and TX of the UART port, each chip may expand one port into 8, and two CD4051 may expand one complete UART port into 8, if more ports are required, only more CD4051/CD4052 need to be added, and each piece of CD4051/4052 needs to occupy more IO ports of one processor, because three a/B/C ports of CD4051/CD4052 may be fully multiplexed, and only the same IO port needs to be occupied. The INH pin needs to occupy different processor IO ports;

the part of sensors output detected data to a processor through analog signals through AD acquisition, and the AD acquisition: namely an analog-to-digital conversion part of the system, and part of the sensors adopt analog signal output, such as 4-20mA/0-5V or other analog signals, and need to be accessed through the analog-to-digital conversion system and carry out data algorithm processing in a processor.

In this embodiment, power supply is realized between the battery charging system and the detector through the power conditioning circuit, and the system adopts a power supply mode in which a lithium battery and external power supply coexist, so that portability of the lithium battery can be achieved, and online detection of continuous power supply can be achieved.

In this embodiment, the clock is electrically connected to the processor, the clock is an external clock signal, and the accurate data, date and time are displayed after the clock is processed by the processor.

In this embodiment, the electric quantity detection module is electrically connected with the battery charging system through the processor, and the system comprises the battery electric quantity detection unit, so that the power supply condition of the user equipment can be effectively reminded.

In this embodiment, the key system is electrically connected to the processor, and the function setting or page switching is performed on the system through the key.

In this embodiment, the storage device is electrically connected to the processor, the storage device is a storage portion of a plurality of sensors, data processed by the processor is stored in the storage device, and the sensor data storage portion is used for storing the data in the storage device after processing sensor data and clock signals by the processor for a user to call.

In this embodiment, the display system is a display screen interface and a liquid crystal display portion, and the display system is electrically connected to the processor.

WIFI/Bluetooth: the system can set a router connected with the equipment and a password thereof through Bluetooth/WIFI, and the equipment is connected with the router through WIFI and can be in data communication with an internet cloud server.

4G/5G/GPRS: after the device is accessed to a mobile phone communication module (namely 4G/5G/GPRS), an SIM mobile phone communication card or an Internet of things card is inserted, and then data can be transmitted to an Internet cloud server for data communication.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An air quality detection device, characterized in that: the system comprises a detector and a battery charging system for supplying power to the detector, wherein the detector is used for processing collected data and transmitting the data to an internet cloud server for data communication through WIFI/Bluetooth or 4G/5G/GPRS;

the detector comprises a processor system, a plurality of sensors, a clock, an electric quantity detection module, a key system, a storage device and a display system;

part of sensors transmit detected data to a processor through an IIC bus;

2. The air quality detection apparatus according to claim 1, characterized in that: and the battery charging system and the detector are powered through the power conditioning circuit.

3. The air quality detection apparatus according to claim 1, characterized in that: the clock is electrically connected with the processor, is externally connected with a clock signal and displays accurate data, date and time after being processed by the processor.

4. The air quality detection apparatus according to claim 1, characterized in that: the electric quantity detection module is electrically connected with the battery charging system through the processor.

5. The air quality detection apparatus according to claim 1, characterized in that: the key system is electrically connected with the processor.

6. The air quality detection apparatus according to claim 1, characterized in that: the storage device is electrically connected with the processor, the storage device is a storage part of the various sensors, and data processed by the processor is stored in the storage device.

7. The air quality detection apparatus according to claim 1, characterized in that: the display system is a display screen interface and a liquid crystal display part and is electrically connected with the processor.