CN109270873A - A kind of health microenvironment data acquisition transmission display device - Google Patents

A kind of health microenvironment data acquisition transmission display device Download PDF

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Publication number
CN109270873A
CN109270873A CN201811295771.2A CN201811295771A CN109270873A CN 109270873 A CN109270873 A CN 109270873A CN 201811295771 A CN201811295771 A CN 201811295771A CN 109270873 A CN109270873 A CN 109270873A
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China
Prior art keywords
main control
control unit
unit
sensor
data acquisition
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Pending
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CN201811295771.2A
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Chinese (zh)
Inventor
程小舟
杨任新
骆俊
程小坡
周德君
胡平
刘志远
朱果
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Sinosteel Maanshan General Institute of Mining Research Co Ltd
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Sinosteel Maanshan General Institute of Mining Research Co Ltd
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Priority to CN201811295771.2A priority Critical patent/CN109270873A/en
Publication of CN109270873A publication Critical patent/CN109270873A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a kind of healthy microenvironment data acquisition transmission display devices, are formed by connecting by GPIO interface with display (1) by data acquisition with transmission terminal device;Data acquisition contains main control unit, power supply unit, WIFI communication unit, sensor unit with transmission terminal device (2);Main control unit provides DC5V and DC3.3V power supply by power supply unit;Sensor unit is by Temperature Humidity Sensor mould group, CO2Sensor module, light intensity sensor mould group, PM2.5 sensor module, noise transducer modules in parallel are constituted;WIFI communication unit uses WIFI module, and WIFI module is connect by UART interface with main control unit;The main control unit is also connect by PC interface with RTC block, EEPROM storaging chip respectively.The present invention can collect temperature, humidity, carbon dioxide, PM2.5, sound and light data in microenvironment in real time, and provide Encryption Algorithm support, by obtaining data and transmitting cloud centralized processing, can play the value of data to the greatest extent.

Description

A kind of health microenvironment data acquisition transmission display device
Technical field
It is for example warm and humid more particularly, to indoor healthy microenvironment the invention belongs to the acquisition of microenvironment data and transmission technique field The acquisition and transmission display device of the data such as degree, PM2.5, oxycarbide concentration, noise.
Background technique
Healthy microenvironment is the increasingly serious macro environment opposite of pollution, is primarily referred to as inside of human body and is in peripheral ring The state in border.For more broadly, healthy microenvironment more with the impression of open eye concern human lives, meets the strong of people Health demand.China in Recent Years paces in terms of the building of healthy microenvironment are accelerated, and the microenvironment health care theory of people is more universal, More multiple enterprises join in the products such as the health industry of microenvironment improvement, such as air purifier in the market and sell fast.
Existing health microenvironment acquisition product usually only biases toward acquisition and using environmental data in a certain respect, cannot calculate Work is acquisition terminal, these products lack the collecting transmitter of comprehensive integration, such as air purifier only acquires air quality Data, air-conditioning temperature collection data;In addition, only being shown in this product after the acquisition of these data, it is unable to centralized displaying and makes With less can be carried out remote transmission.
It only biases toward acquisition in order to solve existing healthy microenvironment acquisition product and is asked using environmental data in a certain respect Topic, Chinese patent CN108319236A (201810031243.X) disclose a kind of smart home environment quality-monitoring control system System, including monitoring modular, receiving module, display module, central processing module, power module, execution module;The monitoring modular Including temperature parameter unit, humidity parameter unit, gas parameters unit, smog parameters unit, the temperature parameter unit is used for Indoor temperature value is monitored, humidity parameter unit is used to monitor the degree of drying of room air, and the gas parameters unit is used for The content of coal gas in room air is monitored, the smog parameters unit is used to monitor the concentration of smog in room air;It is described to connect Module is received for receiving all data that monitoring modular is monitored;The central processing module receives mould for analyzing, handling The received all data of block institute and information.The present invention can not only play the role of monitoring to indoor environment, and can be to some bursts Accident is handled, and has ensured the life security of resident.But the domestic environment quality-monitoring Control system architecture is extremely complex, system Make and be applicable in it is at high cost, executing agency for example fire extinguishing cooling, door and window control, temperature control etc. be difficult to carry out.Be not suitable for daily family Acquisition and transmission with indoor healthy microenvironment in relation to data.
Summary of the invention
In order to overcome deficiencies of the prior art, the present invention provides one kind to collect in microenvironment in real time Temperature, humidity, carbon dioxide, PM2.5, sound and light data, and manufacture and be applicable in it is at low cost, be applicable in convenient, adaptability By force, accurate data, the healthy microenvironment data acquisition transmission display device that highly-safe, overall power is low.
Above-mentioned purpose to realize the present invention, a kind of healthy microenvironment data acquisition transmission display device of the present invention use with Lower technical solution:
A kind of healthy microenvironment data acquisition transmission display device of the present invention is to be acquired to lead to transmission terminal device by data GPIO interface is crossed to be formed by connecting with display;The described data acquisition and transmission terminal device contain main control unit, power supply unit, WIFI communication unit, sensor unit;The main control unit uses single-chip microcontroller, and main control unit includes main control chip and serial ports core Piece;It is DC6~36V that power supply unit, which takes piezoelectric voltage, and main control unit provides DC5V and DC3.3V power supply by power supply unit;Main control unit It is connect by GPIO interface with display;The sensor unit is by Temperature Humidity Sensor mould group, CO2Sensor module, Light intensity sensor mould group, PM2.5 sensor module, noise transducer modules in parallel are constituted;Main control unit passes through A/D interface and temperature Moisture sensor module connection, passes through UART interface and CO2Sensor module connection, passes through I2C interface and light intensity sensor mould group Connection, is connect with PM2.5 sensor module by UART interface, is connect by RS485 interface with noise transducer mould group;It is described WIFI communication unit use WIFI module, WIFI module is connect by UART interface with main control unit;The main control unit Also it is connect respectively by PC interface with RTC block, EEPROM storaging chip.
The main control unit also contains USB interface.
Under normal conditions, the main control unit includes 1 main control chip and 3 serial port chips, and main control chip uses STM32F407,3 serial port chips are respectively 2 MAX3232,1 MAX3485.
To improve Information Security, the present invention also uses Encryption Algorithm encryption data to carry out data transmission, can be to acquisition To initial data encrypted, support DES, AES encryption mode;Encrypted data transfer to WIFI module, through net after packing Network is sent to cloud server.
A kind of healthy microenvironment data acquisition transmission display device of the present invention after the above technical solution is adopted, has following excellent Point:
(1) device is integrated with temperature, humidity, carbon dioxide, PM2.5, sound, light sensor, can acquire in real time To these data in microenvironment.It is compared to existing healthy microenvironment acquisition product and only biases toward acquisition and using in a certain respect Environmental data have biggish advantage and progress.
(2) data that the device obtains can be focused on technology of Internet of things and big data technical transmission cloud, energy Enough values for farthest playing data.
(3) data acquisition and the transmission terminal device used uses left and right panel cut out, top-slitting in structure Design increases air inlet to improve permeability, and temperature and humidity, carbon dioxide, PM2.5 sensor acquisition data are more accurate.
(4) Encryption Algorithm encryption data is used, the mode of data is directly transmitted than tradition, Information Security improves.
(5) a variety of low-power chips and low-power consumption sensor are used in the device hardware design, to reduce device Overall power.
Detailed description of the invention
Fig. 1 is a kind of schematic block circuit diagram of healthy microenvironment data acquisition transmission display device of the present invention;
Fig. 2 is a kind of flow chart of data processing figure of healthy microenvironment data acquisition transmission display device of the present invention;
Fig. 3 is the interface connection schematic diagram of data acquisition and transmission terminal device and display that the present invention uses.
Appended drawing reference are as follows: 1- display;The acquisition of 2- data and transmission terminal device.
Specific embodiment
To further describe the present invention, healthy microenvironment data acquisition a kind of to the present invention with reference to the accompanying drawings and examples Transmission display device is described further.
The present invention as shown in Figure 1 a kind of schematic block circuit diagram and knot of healthy microenvironment data acquisition transmission display device It closes Fig. 3 to find out, a kind of healthy microenvironment data acquisition transmission display device of the present invention is by data acquisition and transmission terminal device 2 It is formed by connecting by GPIO interface and display 1.The data acquisition contains main control unit, power supply with transmission terminal device 2 Unit, WIFI communication unit, sensor unit, main control unit, power supply unit, WIFI communication unit, sensor unit are integrated in In entire box body, box body uses the design structure of left and right panel cut out, top-slitting.Main control unit passes through GPIO interface and display Device 1 connects;The sensor unit is by Temperature Humidity Sensor mould group, CO2Sensor module, light intensity sensor mould group, PM2.5 sensor module, noise transducer modules in parallel are constituted;Main control unit passes through A/D interface and temperature humidity sensor module Connection, passes through UART interface and CO2Sensor module connection, passes through I2C interface is connect with light intensity sensor mould group, passes through UART Interface is connect with PM2.5 sensor module, is connect by RS485 interface with noise transducer mould group;The WIFI communication unit Member uses WIFI module, and WIFI module is connect by UART interface with main control unit;The main control unit also passes through PC respectively Interface is connect with RTC block, EEPROM storaging chip;The main control unit also contains USB interface.
(1) main control unit
The main control unit uses single-chip microcontroller, and main control unit includes 1 main control chip and 3 serial port chips, master control core Piece uses STM32F407, and 3 serial port chips are respectively 2 MAX3232,1 MAX3485.Main control chip uses STM32F407, This chip is based on Cortex-M432 RISC cores of high-performance ARM, working frequency 168MHz.The built-in high speed of main control chip is deposited Reservoir (the up to SRAM of the flash memory of 128K byte and 64K byte) possesses the port enhancing I/O abundant and is connected to two APB The peripheral hardware of bus;It also include 3 12 ADC, 4 general 16 bit timing devices and a PWM timers;And standard of arranging in pairs or groups and Advanced communication interface: up to 2 I2C and 3 SPI, 6 USART/UART, 2 USB, 1 network interface.STM32F407 Possess 3 kinds of battery saving modes: sleep, shutdown and standby mode, to guarantee the requirement of low-power consumption application.
Using electrical level transferring chip MAX3232/MAX3485 serial ports electrical level conversion chip, main control chip serial ports is exported Level signal boosting, to be communicated with PC and equipment.
MAX3232 uses proprietary low voltage difference transmitter output stage, and MAX3232 can guarantee under worst operating condition The data rate of 120kbps, functional, the operation is stable.MAX3485 has low power consumption characteristic, differential signal > 200mv It differentiates.
(2) power supply unit
The voltage as needed for chip and mould group is respectively DC5V and DC3.3V.Therefore, power supply unit take piezoelectric voltage be DC6~ Input voltage is converted out 5V voltage available using LM2596-ADJ chip and peripheral circuit by 36V, using LM1117 chip and Peripheral circuit carries out the conversion of 3.3V burning voltage.Main control unit provides DC5V and DC3.3V power supply by power supply unit.
(3) WIFI communication unit
WIFI communication unit is used using portable serial interface WiFi module USR-WIFI232 low-power consumption series.This Series supports 802.11b/g/n wireless standard, module independent development MCU platform, and the power supply of 3.3V single supply has superelevation sexual valence Than, super low-power consumption, brilliant electricity-saving mechanism.It supports UART/PWM/GPIO data communication interface, supports Smart Link intelligent networking Function, Usrlink function.Support sound wave intelligent networking configuration, can multichannel (5 tunnel) TCP Client connection and WPS networked deployment, STA/AP/STA+AP coexistence work mode, optional built-in antenna, external antenna, IPEX connector or extraction line interface.
(4) sensor unit
Sensor unit is by Temperature Humidity Sensor mould group, CO2 sensor module, light intensity sensor mould group, PM2.5 sensing Device mould group, noise transducer modules in parallel are constituted.
Using detection is accurate, consistency is good, stable reading is reliable, five with the shock of preferable tenable environment and vibrant characteristic Kind sensor.
PM2.5 sensor: BM-PD Series P M2.5 dust granule detection module is cheap, it is small in size, using simple, make As long as five years with the service life.
Temperature Humidity Sensor: RHT series is the temperature and humidity module of a single interface chip, and transmission speed is fast, and measurement is accurate, Precision is high.
Air quality sensor: MS5433 sensor, calibration-free, low in energy consumption, high sensitivity are used.
Light intensity sensor: using BH1750, and the high-resolution with 1~65535lx supports large range of luminous intensity Variation, has good spectral response characteristic.
Noise transducer: use the online noise transducer of HB-NS502, support Modbus communications protocol, high sensitivity, It is small in size, it can be exported by RS485 signal.
A kind of flow chart of data processing figure of healthy microenvironment data acquisition transmission display device of the present invention as shown in Figure 2 is seen Out, data processing of the present invention uses following steps:
In step 401, user host computer be arranged server address, Service-Port, cipher mode (DES or AES), Each sensor acquisition interval time and system time.In this example, user should first complete host computer configuration, guarantee host computer and terminal Correct connection, is able to carry out data communication, and host computer shows successful connection.Host computer configuration includes that serial ports configures (port numbers, wave Special rate etc.) and USB turn serial port drive installation.
In step 402, host computer issues user configuration parameter, and after the success of system prompt parameter configuration, configuration is completed.
In step 403, slave computer reads the configuration parameter that host computer sends over, and configuration file is written in parameter, Real-time update parameters simultaneously.File is written in configuration parameter, it can be ensured that can initialize parameters after booting every time.? In step 404, if terminal restarts, need to read data from configuration file.
In step 404, terminal reads every configuration parameter and register is written;If terminal is restarted, from configuration file Every configuration parameter write-in register is read to use.
In step 405, main control unit respectively reads sensing data: PM2.5 sensor provides PM2.5 numerical value, temperature and humidity Sensor provides temperature value and humidity, and air quality sensor provides carbon dioxide value, and light intensity sensor provides Intensity of illumination numerical value, noise transducer provide sound decibel number value.
In a step 406, AES or des encryption module are transferred according to configuration file, sensor raw data is carried out AES or des encryption.As without especially needs, default uses AES encryption mode.
In step 407, encrypted data are sent to service via network link by WiFi according to protocol groups packet Device.
In a step 408, if data transmission does not stop, system is continued to run, then continues the data for acquiring sensor, Repeat step 405 to 407.
In step 409, system is out of service, and terminal stops acquisition and sends data task.
The present invention includes structure design, three Electrical Appliances Designing, programming parts in design, manufacturing process.
A. programming
Programming part includes embedded software and upper computer software, the embedded main part for terminal installation operation Point, upper computer software is responsible for the setting parameter of initialization terminal device.Main control chip is by the collected initial data of each sensor It is encrypted, encrypted data are sent via WIFI module;Collected data real-time display is to using LCD screen Display 1 on, convenient for checking real-time microenvironment numerical value;The functions such as online heartbeat and disconnection reconnecting are provided.Host computer passes through USB turns initialization of (a) serial ports slave computer parameter, when including server address and port, cipher mode (DES or AES), acquisition interval Between and the time setting.
B. circuit design
Based on portable, practical, ring where equipment is mainly acquired by particular sensor in real time for design in terms of circuit Temperature, humidity, PM2.5, CO2, light intensity and noise parameter in border.Its operating temperature range passes through between+5 DEG C~+50 DEG C LED light real-time display equipment state is equipped with LED display, timely display environment detection parameters;Communication aspects use WIFI Network and headend equipment are seamlessly connected;It is equipped with USB interface, it is more convenient to be communicated with host computer.Circuit is mainly by power supply unit, master control Unit, display unit, clock unit, storage unit, sensor unit (temperature and humidity, PM2.5, CO2, light intensity and noise), WIFI Unit composition.
C. structure designs
Since the present invention is household products, data acquisition utilizes highstrenghtpiston PC+ABS material with transmission terminal device 2 It is made, then carries out oil spout process.Aperture shape-designing is carried out in corresponding sensor position, constructional appearance is beautiful big Side.Increase crystal display, allows users to intuitively every real time value of healthy microenvironment.

Claims (5)

1. a kind of health microenvironment data acquisition transmission display device, it is characterised in that: it is by data acquisition and transmission terminal Device (2) is formed by connecting by GPIO interface with display (1);The data acquisition contains master with transmission terminal device (2) Control unit, power supply unit, WIFI communication unit, sensor unit, main control unit, power supply unit, WIFI communication unit, sensor Unit is integrated in entire box body;The main control unit uses single-chip microcontroller, and main control unit includes main control chip and serial port chip; It is DC6~36V that power supply unit, which takes piezoelectric voltage, and main control unit provides DC5V and DC3.3V power supply by power supply unit;Main control unit is logical GPIO interface is crossed to connect with display (1);The sensor unit is by Temperature Humidity Sensor mould group, CO2Sensor module, Light intensity sensor mould group, PM2.5 sensor module, noise transducer modules in parallel are constituted;Main control unit passes through A/D interface and temperature Moisture sensor module connection, passes through UART interface and CO2Sensor module connection, passes through I2C interface and light intensity sensor mould group Connection, is connect with PM2.5 sensor module by UART interface, is connect by RS485 interface with noise transducer mould group;It is described WIFI communication unit use WIFI module, WIFI module is connect by UART interface with main control unit;The main control unit Also it is connect respectively by PC interface with RTC block, EEPROM storaging chip.
2. a kind of healthy microenvironment data acquisition transmission display device as described in claim 1, it is characterised in that: the master Control unit also contains USB interface.
3. a kind of healthy microenvironment data acquisition transmission display device as claimed in claim 2, it is characterised in that: the master Controlling unit includes 1 main control chip and 3 serial port chips, and main control chip uses STM32F407, and 3 serial port chips are respectively 2 MAX3232,1 MAX3485.
4. a kind of healthy microenvironment data acquisition transmission display device as claimed in claim 1,2 or 3, it is characterised in that: institute The data acquisition stated uses the design structure of left and right panel cut out, top-slitting with the box body of transmission terminal device (2), using height Strength plastics material's PC+ABS Material cladding is made.
5. a kind of healthy microenvironment data acquisition transmission display device as claimed in claim 1,2 or 3, it is characterised in that: institute The data processing software of use is additionally arranged Encryption Algorithm support, and main control chip can encrypt collected initial data, And support DES, AES encryption mode;Encrypted data transfer to WIFI module, are sent to cloud server through network after packing.
CN201811295771.2A 2018-11-01 2018-11-01 A kind of health microenvironment data acquisition transmission display device Pending CN109270873A (en)

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