CN109270873A - A kind of health microenvironment data acquisition transmission display device - Google Patents
A kind of health microenvironment data acquisition transmission display device Download PDFInfo
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- 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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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 230000036541 health Effects 0.000 title claims description 7
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000013461 design Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 229920006834 PC+ABS Polymers 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements 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
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.
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| CN201811295771.2A CN109270873A (en) | 2018-11-01 | 2018-11-01 | A kind of health microenvironment data acquisition transmission display device |
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| CN201811295771.2A CN109270873A (en) | 2018-11-01 | 2018-11-01 | A kind of health microenvironment data acquisition transmission display device |
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| CN110806776A (en) * | 2019-10-30 | 2020-02-18 | 重庆医药高等专科学校 | Data transmission power circuit for medical image acquisition |
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