CN206056644U - Large public building indoor environment multi-parameter remote monitoring system based on Internet of Things - Google Patents
Large public building indoor environment multi-parameter remote monitoring system based on Internet of Things Download PDFInfo
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- CN206056644U CN206056644U CN201620959739.XU CN201620959739U CN206056644U CN 206056644 U CN206056644 U CN 206056644U CN 201620959739 U CN201620959739 U CN 201620959739U CN 206056644 U CN206056644 U CN 206056644U
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Abstract
This utility model provides a kind of large public building indoor environment multi-parameter remote monitoring system based on Internet of Things, including ambient parameter monitor and host computer, the ambient parameter monitor is by being wirelessly connected with host computer, the ambient parameter monitor includes microcontroller, Temperature Humidity Sensor, noise transducer, illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene sensor, reset circuit, display screen and status indicator lamp, the Temperature Humidity Sensor, noise transducer, illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene sensor, reset circuit, display screen and status indicator lamp are connected with microcontroller respectively.The beneficial effects of the utility model are that the system can be while carry out real-time radio monitoring to the multiparameter of large public building indoor environment, the system can also make overall merit to test environment quality according to multiparameter, be easy to personnel to inquire about in time and understand the health status of local environment.
Description
Technical field
This utility model belongs to technical field of environmental detection, more particularly, to a kind of large public building based on Internet of Things
Indoor environment multi-parameter remote monitoring system.
Background technology
At present, the large-scale haze weather in the whole nation increased people's time movable indoors, but the decoration of interior is filled
Repair, the environmental pollution that furniture is caused has had influence on human health again.Particularly large public building densely populated place, space-closed,
Ventilation rate is relatively low, the potential probability low with indoor environmental quality, jeopardizes health.Accurate and effective detection technique is
Improve premise and the basis of indoor environment.
Indoor Environment Detection equipment mainly carries out field monitoring by wired or wireless handheld device at present, in area of detection
With Shortcomings in convenience, it is difficult to meet large-area space detection demand, and measurement data type is single, is not directed to
Human body comfort and the principal element of health is affected to carry out composite measurement.Single equipment can not meet the physics to indoor environment,
The multiparameters such as chemistry are carried out while the requirement monitored.
Utility model content
Main purpose of the present utility model is to provide the indoor environment monitoring system based on technology of Internet of things of complete set.
The system can carry out real-time radio monitoring to the multiparameter of large public building indoor environment simultaneously, and the system can also be according to more
Parameter makes overall merit to test environment quality, is easy to personnel to inquire about in time and understand the health status of local environment.
The technical solution of the utility model is：A kind of large public building indoor environment multi-parameter remote based on Internet of Things
Monitoring system, including ambient parameter monitor and host computer, the ambient parameter monitor pass through wirelessly to be connected with host computer, institute
State ambient parameter monitor include microcontroller, Temperature Humidity Sensor, noise transducer, illuminance transducer, PM2.5 sensors,
Formaldehyde sensor, benzene sensor, reset circuit, display screen and status indicator lamp, the Temperature Humidity Sensor, noise transducer,
Illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene sensor, reset circuit, display screen and status indicator lamp respectively with
Microcontroller is connected.
Further, the microcontroller adopts STM32F407ZGT6 chips.
Further, the illuminance transducer is using GY-30 numeral optical modules, the 1st pin of the GY-30 numerals optical module
Connection power supply VCC3.3, the 2nd pin and the 3rd pin of the GY-30 numerals optical module are connected to the PA13 of microcontroller
On foot and PA14 feet, the 5th pin ground connection of the GY-30 numerals optical module, in the 1st pin and the 5th of GY-30 numeral optical modules
Electric capacity C21 is connected between pin.
Further, the formaldehyde sensor adopts the 1st pin of model Dart 2-FE5, the formaldehyde sensor to connect
Power supply VCC3.3, the 2nd pin ground connection of formaldehyde sensor, the 6th and the 7th pin of the formaldehyde sensor connect microcontroller respectively
On the PA10 feet and PA9 feet of device.
Further, the PA5 feet of the 1st pin connection microcontroller of the noise transducer, the 2nd of the noise transducer the
Pin connects power supply VCC5, the 3rd pin ground connection of the noise transducer, the 2nd pin of the noise transducer and the 3rd pin
Between connect electric capacity C22.
Further, the PM2.5 sensors adopt model GP2Y1010AU0F, the 1st pin of the PM2.5 sensors
Connect power supply VCC5 respectively with the 6th pin, the 2nd pin and the 4th pin of the PM2.5 sensors are grounded respectively, the PM2.5
3rd pin of sensor and the 5th pin connect the PB6 feet and PB5 feet of microcontroller respectively.
Further, the Temperature Humidity Sensor adopts DHT11 monobus digital hygro sensors, the temperature and humidity sensing
1st pin of device connects power supply VCC3.3, electric capacity C23 one end and resistance R10 one end respectively, and the electric capacity C23 other ends are grounded,
The resistance R10 other ends connect the 124th pin of microcontroller, the 2nd pin connection microcontroller of the Temperature Humidity Sensor
124th pin of device, the 3rd pin of the Temperature Humidity Sensor and the 4th pin ground connection.
Further, the benzene sensor adopts model MQ-138, the 1st pin and the 4th pin point of the benzene sensor
Not Lian Jie power supply VCC3.3 and ground connection, the 2nd pin of the benzene sensor is hanging, and the 3rd pin connection of the benzene sensor is micro-
The PA4 feet of controller.
Further, the ambient parameter monitor also includes wireless sending module, and the wireless sending module chip is adopted
NRF24L01, the 5th pin of the wireless sending module, the 6th pin and the 7th pin are SPI interface wiring, are connected to micro-
The 133rd pin, the 135th pin and the 134th pin on controller chip, the 3rd pin of the wireless sending module, the 4th pipe
Foot and the 8th pin connect the 91st pin on microcontroller, the 92nd pin and the 93rd pin respectively.
Further, also including buzzer, the positive pole connection power supply VCC3.3 of the buzzer, the negative pole of the buzzer connect
Connect the colelctor electrode of audion Q1, the base stage of the audion Q1 respectively by resistance R8 connect the 20th pin on microcontroller and
It is grounded by resistance R9, the grounded emitter of the audion Q1.
This utility model has the advantages and positive effects that：Due to adopting above-mentioned technical proposal, the system can be simultaneously
Real-time radio monitoring is carried out to the multiparameter of large public building indoor environment, each node possesses on-site data gathering, shows
Show and warning function.Each node transmits data to host computer by way of radio communication.It is complete by Host Computer Software Platform
The function such as the process of paired data, preservation, display, contrast, inquiry, shared.
Description of the drawings
Fig. 1 is hardware architecture diagram of the present utility model；
Fig. 2 is clock circuit structural representation of the present utility model；
Fig. 3 is reset circuit structural representation of the present utility model；
Fig. 4 is the electrical block diagram of illuminance transducer of the present utility model；
Fig. 5 is the electrical block diagram of formaldehyde sensor of the present utility model；
Fig. 6 is the electrical block diagram of noise transducer of the present utility model；
Fig. 7 is the electrical block diagram of PM2.5 sensors of the present utility model；
Fig. 8 is the electrical block diagram of Temperature Humidity Sensor of the present utility model；
Fig. 9 is the electrical block diagram of benzene sensor of the present utility model；
Figure 10 is the electrical block diagram of wireless sending module of the present utility model；
Figure 11 is the electrical block diagram of buzzer of the present utility model；
Figure 12 is the electrical block diagram of power circuit of the present utility model；
Figure 13 is the electrical block diagram of display screen of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is elaborated.
Main purpose of the present utility model is to provide the indoor environment monitoring system based on technology of Internet of things of complete set.
The system can carry out real-time radio monitoring to the multiparameter of large public building indoor environment simultaneously, and system is tested by being distributed in
Multiple detection node compositions in region, each node possess on-site data gathering, show and warning function.This utility model
Hardware is mainly made up of ambient parameter monitor and host computer, and wherein ambient parameter monitor includes front end sensors and microcontroller
Device.Mastery routine is loaded by microcontroller first, Sensor section is responsible for the collection of monitoring point real time data；Next microcontroller pair
The data for collecting are analyzed, process, show；Finally, host computer is transmitted data to by wireless sending module, by upper
The process of the position complete paired data of machine platform, preservations, display, contrast, inquiry, the function such as share.Additionally, the system can also be according to more
Parameter makes overall merit to test environment quality, is easy to personnel to inquire about in time and understand the health status of local environment.Work as ring
Blinking red lamp and buzzer warning when border parameter is unsatisfactory for requiring.
As shown in Fig. 1 hardware architecture diagrams of the present utility model, including ambient parameter monitor and host computer, the ring
Border parameter monitor by being wirelessly connected with host computer, the ambient parameter monitor include microcontroller, Temperature Humidity Sensor,
Noise transducer, illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene sensor, reset circuit, display screen and state refer to
Show lamp, the Temperature Humidity Sensor, noise transducer, illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene sensor,
Reset circuit, display screen and status indicator lamp are connected with microcontroller respectively.
The microcontroller adopts STM32F407ZGT6 chips.More due to detecting parameter, ordinary processor cannot meet
Require, therefore the STM32F407ZGT6 chips of Systematic selection ARM series are core, the processor has aboundresources, power consumption
It is little, the features such as speed is fast, disclosure satisfy that requirement.The clock circuit that also includes being connected with microcontroller, reset circuit, state instruction
The hardware designs of the parts such as lamp, key circuit.
Clock signal can have two schemes, and one is internal clocking mode, and two is external clock mode.The design is to adopt
High speed outer clock, electric capacity C31 and C32 capacitance are 22pF, and the frequency of oscillation of crystal oscillator is set as 8MHz, clock circuit such as Fig. 2
It is shown.
As STM32 is resetted using low level, therefore reset circuit is also adopted by low level reset mode, and reset circuit is as schemed
Shown in 3.Wherein R1 and C8 connects the 25th pin of microcontroller into electrification reset circuit, RESET.Screen is will also be shown that in design
The reset pin of TFT_LCD be also connected on RESET, such SR can realize the reset of microcontroller and display screen simultaneously
Function.
The illuminance transducer reads photometric data by I2C bus modes using GY-30 numeral optical modules, the module,
I2C buses are a two-way continuous buses of two lines, there is provided the communication line between integrated circuit.Circuit structure as shown in figure 4,
The 1st pin connection power supply VCC3.3 of the GY-30 numerals optical module, the 2nd pin and the 3rd of the GY-30 numerals optical module
Pin is connected on the PA13 feet and PA14 feet of microcontroller, the 5th pin ground connection of the GY-30 numerals optical module,
Electric capacity C21 is connected between 1st pin and the 5th pin of GY-30 numeral optical modules, electric capacity C21 is used to filter.
The formaldehyde sensor adopts model Dart 2-FE5, and formaldehyde sensor is using unique electrolyte encapsulation skill
Art, built-in high performance analog circuits and data processing unit, directly export digital concentration information, without the need for again to electrochemical sensor
Complicated analog circuit carries out signal condition.6th pin of wherein module is TXD, and the 7th pin is RXD, connects microcontroller respectively
On the PA10 feet and PA9 feet of device.Micro controller series Configuration of baud rate is 9600, sends inquiry Monitoring Data and instructs to sensing
Measurement data is returned to microcontroller by serial ports by device, sensor.Circuit structure is as shown in figure 5, the formaldehyde sensor
1st pin connects power supply VCC3.3, the 2nd pin ground connection of formaldehyde sensor, the 6th and the 7th pin point of the formaldehyde sensor
Lian Jie not be on the PA10 feet and PA9 feet of microcontroller.
Noise transducer is used for the intensity of sound for detecting surrounding, can show corresponding decibel according to program setting
Value.As shown in fig. 6, the digital output in module is joined directly together with the PA5 feet of microcontroller, by monolithic machine testing height electricity
It is flat, thus detecting ambient sound.The noise transducer adopts brand for SONTEEN, the 1st pin of the noise transducer
The PA5 feet of connection microcontroller, the 2nd pin connection power supply VCC5 of the noise transducer, the 3rd pipe of the noise transducer
Foot is grounded, and connects electric capacity C22 between the 2nd pin of the noise transducer and the 3rd pin, and electric capacity C22 is used to filter.
Using using optics dust sensor, model GP2Y1010AU0F, the sensor have the PM2.5 sensors
Extremely low current drain, is output as being proportional to the analog voltage amount of dust concentration, and sensitivity is 0.5V/0.1mg/m3.The 3 of module
Pin is connected with the PB6 of microcontroller, and for working sensor state instruction, the 5th pin of PM2.5 sensors is that signal is defeated
Go out, being connected with the PB5 of microcontroller carries out data acquisition.Circuit structure is as shown in Figure 7.1st pin of the PM2.5 sensors
Connect power supply VCC5 respectively with the 6th pin, the 2nd pin and the 4th pin of the PM2.5 sensors are grounded respectively, the PM2.5
3rd pin of sensor and the 5th pin connect the PB6 feet with microcontroller and are connected PB5 feet.
The Temperature Humidity Sensor adopts DHT11 monobus digital hygro sensors, the sensor to include a resistance
Formula humidity sensing element and a NTC temperature element, circuit structure are as shown in Figure 8.1st pin of the Temperature Humidity Sensor connects respectively
Connect power supply VCC3.3, electric capacity C23 one end and resistance R10 one end, the electric capacity C23 other ends ground connection, the resistance R10 other ends
124th pin of connection microcontroller, the 2nd pin of the Temperature Humidity Sensor connect the 124th pin of microcontroller, described
3rd pin of Temperature Humidity Sensor and the 4th pin ground connection, DHT11 numeral wet temperature sensors adopt single bus data form, single
Individual data leads ends mouth completes input and output transmitted in both directions.
The benzene sensor adopts model MQ-138, circuit to connect as shown in figure 9, the 1st pin of the benzene sensor
Connect power supply VCC3.3 and ground connection respectively with the 4th pin, the 2nd pin of the benzene sensor is hanging, the 3rd of the benzene sensor the
Pin connects the PA4 feet of microcontroller.Data on the 3rd pin of the microcontroller by reading benzene sensor, through non-linear
Process obtains tested region detected value.
Port is reserved in the system design, sensor can have been increased according to actual needs, for polytype parameter
Detection, with good autgmentability.
The ambient parameter monitor also includes wireless sending module, and wireless sending module realizes data using nRF24L01
Be wirelessly transferred, nRF24L01 is a monolithic wireless transceiver core for being operated in 2.4～2.5GHz Global Access ISM bands
Piece, with low current drain, when being operated in that transmission power is -6dBm under emission mode, current drain is 9mA, reception pattern
For 12.3mA.Circuit connection is as shown in Figure 10, and the 5th pin of the wireless sending module, the 6th pin and the 7th pin are that SPI connects
Mouthful wiring, is connected to the 133rd pin on microcontroller chip, the 135th pin and the 134th pin, the wireless transmission
3rd pin of module, the 4th pin and the 8th pin connect the 91st pin on microcontroller, the 92nd pin and the 93rd pipe respectively
Foot.Wherein ambient parameter monitor is capable of achieving the conversion of USB and serial ports by USB serial port modules, and nRF24L01 is wirelessly gone here and there with USB
Mouth mold block is used cooperatively, it is possible to achieve the communication between PC host computers and ambient parameter monitor, realizes being wirelessly transferred for data.
Also include buzzer, as shown in figure 11, the positive pole of the buzzer connects power supply VCC3.3, the honeybee to circuit structure
The colelctor electrode of the negative pole connecting triode Q1 of ring device, the base stage of the audion Q1 are connected on microcontroller by resistance R8 respectively
The 20th pin and be grounded by resistance R9, the grounded emitter of the audion Q1.In figure, Q1 is for expanding stream, BEEP signals
It is connected directly between 20 pins of microcontroller.
The electrical block diagram of the power circuit shown in Figure 12, this circuit include portable power source and fixed power source, mobile
Power supply is that one piece of capacity is 2600mAh, and the chargeable lithium cell of voltage 7.4V is powered.First the lithium battery both positive and negative polarity of 7.4V is connect
To on AMS1117-5 chips and an IN4148 isolating diode of connecting, the work of isolation is played using its unidirectional general character
With.Secondly, 5V power supplies are depressurized to 3.3V by AMS1117-3.3 circuits, and the circuit chips two ends are in parallel one respectively
Polar capacitor and nonpolar electric capacity play rectifying and wave-filtering.
5V attaching plugs are plugged directly power supply 5V power supplys by fixed power source, are then connected on AMS1117-3.3 chip circuits,
Power supply 3.3V power supplys, circuit chips two ends difference polar capacitor in parallel and nonpolar electric capacity play the work of rectifying and wave-filtering
With.Used in design, observing whether main circuit is powered, when switch normal power supply is opened, LED is lighted LED light, works as pass
Close LED when there are short-circuit conditions to occur in power supply or circuit to extinguish.
The electrical block diagram of the display screen shown in Figure 13, in figure, TFT_LCD is generic liquid crystal module interface, is supported
TFTLCD modules.LCD interfaces are connected with the FSMC buses of microcontroller, are remarkably improved the brush screen speed of display screen.T_ in figure
MISO/T_MOSI/T_PEN/T_CS/T_CS is used for realizing the control to liquid crystal touch screen.The backlight of LCD_BL control display screens,
Liquid crystal display screen reset signal RESET is connected directly between on the SR of circuit board, and microcontroller shares a reset circuit.
Above one embodiment of the present utility model is described in detail, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as limiting practical range of the present utility model.It is all to be made according to this utility model application range
Impartial change with improve etc., still all should belong within patent covering scope of the present utility model.
Claims (10)
1. a kind of large public building indoor environment multi-parameter remote monitoring system based on Internet of Things, it is characterised in that：Including
Ambient parameter monitor and host computer, the ambient parameter monitor by being wirelessly connected with host computer, supervise by the ambient parameter
Surveying device includes microcontroller, Temperature Humidity Sensor, noise transducer, illuminance transducer, PM2.5 sensors, formaldehyde sensor, benzene
Sensor, reset circuit, display screen and status indicator lamp, the Temperature Humidity Sensor, noise transducer, illuminance transducer,
PM2.5 sensors, formaldehyde sensor, benzene sensor, reset circuit, display screen and status indicator lamp are connected with microcontroller respectively
Connect.
2. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 1,
It is characterized in that：The microcontroller adopts STM32F407ZGT6 chips.
3. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The illuminance transducer is using GY-30 numeral optical modules, the 1st pin connection of the GY-30 numerals optical module
2nd pin and the 3rd pin of power supply VCC3.3, GY-30 numeral optical module be connected to the PA13 feet of microcontroller and
On PA14 feet, the 5th pin ground connection of the GY-30 numerals optical module, in the 1st pin and the 5th pin of GY-30 numeral optical modules
Between be connected with electric capacity C21.
4. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The formaldehyde sensor adopts model Dart 2-FE5, the 1st pin connection power supply of the formaldehyde sensor
VCC3.3, the 2nd pin ground connection of formaldehyde sensor, the 6th and the 7th pin of the formaldehyde sensor connect microcontroller respectively
On PA10 feet and PA9 feet.
5. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：1st pin of the noise transducer connects the PA5 feet of microcontroller, the 2nd pin of the noise transducer
Connection power supply VCC5, the 3rd pin ground connection of the noise transducer, between the 2nd pin of the noise transducer and the 3rd pin
Connection electric capacity C22.
6. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The PM2.5 sensors adopt model GP2Y1010AU0F, the 1st pin of the PM2.5 sensors and the
6 pins connect power supply VCC5 respectively, and the 2nd pin and the 4th pin of the PM2.5 sensors are grounded respectively, the PM2.5 sensings
3rd pin of device and the 5th pin connect the PB6 feet and PB5 feet of microcontroller respectively.
7. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The Temperature Humidity Sensor adopts DHT11 monobus digital hygro sensors, the Temperature Humidity Sensor
1st pin connects power supply VCC3.3, electric capacity C23 one end and resistance R10 one end respectively, and the electric capacity C23 other ends ground connection is described
The resistance R10 other ends connect the 124th pin of microcontroller, the 2nd pin connection microcontroller of the Temperature Humidity Sensor
124th pin, the 3rd pin of the Temperature Humidity Sensor and the 4th pin ground connection.
8. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The benzene sensor adopts model MQ-138, and the 1st pin and the 4th pin of the benzene sensor connect respectively
Power supply VCC3.3 and ground connection are connect, the 2nd pin of the benzene sensor is hanging, the 3rd pin connection microcontroller of the benzene sensor
The PA4 feet of device.
9. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：The ambient parameter monitor also includes wireless sending module, and the wireless sending module chip is adopted
NRF24L01, the 5th pin of the wireless sending module, the 6th pin and the 7th pin are SPI interface wiring, are connected to micro-
The 133rd pin, the 135th pin and the 134th pin on controller chip, the 3rd pin of the wireless sending module, the 4th pipe
Foot and the 8th pin connect the 91st pin on microcontroller, the 92nd pin and the 93rd pin respectively.
10. the large public building indoor environment multi-parameter remote monitoring system based on Internet of Things according to claim 2,
It is characterized in that：Also include buzzer, the positive pole connection power supply VCC3.3 of the buzzer, the negative pole connection three of the buzzer
The colelctor electrode of pole pipe Q1, the base stage of the audion Q1 connect the 20th pin on microcontroller by resistance R8 respectively and pass through
Resistance R9 is grounded, the grounded emitter of the audion Q1.
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| CN201620959739.XU CN206056644U (en) | 2016-08-26 | 2016-08-26 | Large public building indoor environment multi-parameter remote monitoring system based on Internet of Things |
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| CN201620959739.XU CN206056644U (en) | 2016-08-26 | 2016-08-26 | Large public building indoor environment multi-parameter remote monitoring system based on Internet of Things |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352922A (en) * | 2016-08-26 | 2017-01-25 | 天津城建大学 | Multi-parameter remote monitoring system for indoor environment in large-scale public buildings based on Internet of Things |
| CN108007831A (en) * | 2017-05-25 | 2018-05-08 | 合肥万合科技信息服务有限公司 | A kind of atmospheric environment PM2.5 real-time monitoring systems based on Internet of Things |
| CN108286993A (en) * | 2018-03-30 | 2018-07-17 | 镇江市建科工程质量检测中心有限公司 | A kind of automatic range engineering rack |
-
2016
- 2016-08-26 CN CN201620959739.XU patent/CN206056644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352922A (en) * | 2016-08-26 | 2017-01-25 | 天津城建大学 | Multi-parameter remote monitoring system for indoor environment in large-scale public buildings based on Internet of Things |
| CN108007831A (en) * | 2017-05-25 | 2018-05-08 | 合肥万合科技信息服务有限公司 | A kind of atmospheric environment PM2.5 real-time monitoring systems based on Internet of Things |
| CN108286993A (en) * | 2018-03-30 | 2018-07-17 | 镇江市建科工程质量检测中心有限公司 | A kind of automatic range engineering rack |
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Granted publication date: 20170329 Termination date: 20190826 |