CN208850076U - NB-IoT-based indoor environment monitoring system - Google Patents
NB-IoT-based indoor environment monitoring system Download PDFInfo
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Abstract
The utility model discloses an indoor environment monitoring system based on NB-IoT, including Zigbee terminal node, Zigbee coordinator host computer, NB-IoT basic station, cloud ware and intelligent control terminal; the Zigbee terminal nodes comprise at least one Zigbee environment monitoring slave, the Zigbee terminal nodes are communicated with the Zigbee coordinator host through a Zigbee wireless network, the Zigbee coordinator host is connected with the NB-IoT base station through the NB-IoT module, the NB-IoT base station is connected with the cloud server, and the intelligent control terminal is connected with the cloud server. The utility model discloses can realize simultaneously detecting and monitoring indoor humiture, CO2, formaldehyde, the volatile gaseous of TVOC, PM2.5, PM10, a plurality of parameters of dust simultaneously, and adopt NB-IoT module, need not the wiring, low cost, hold that Zigbee coordinator host computer is many more and easily installation maintenance, can realize the multiple spot and detect, remote monitoring.
Description
Technical field
The utility model relates to indoor air chemical pollution technical fields, are based particularly on the indoor air chemical pollution system of NB-IoT
System.
Background technique
In recent years, with China's rapid development of economy, continuous improvement of people's living standards, all kinds of pollution sources are also continuous
Increase, especially manufacturing field, chemical field, the discharges wantonly of all kinds of exhaust gas so that Air Quality worse and worse, simultaneously
With frequently occurring for haze weather, air quality is increasingly paid attention to by people, and interior is as the important of people's daily life
Place, environmental quality have attracted more and more attention from people, we know locating Indoor Environmental Condition at urgent need, thus
Improve environment from source as soon as possible, however status is: by us, the perception of itself can not know locating environmental aspect such as
What, and existing all kinds of detection devices are relatively simple, can only detect a certain pollution sources or indoor temperature and humidity etc., can not achieve
It is wireless to obtain environmental data and long-range monitoring environmental aspect.
Nowadays technology of Internet of things has goed deep into different social sectors, carries out environment shape with Internet of Things network technology
State monitors the hot spot for having become research.With the rise of internet of things concept, wireless sensor network and wireless communication are very big
A part of space is widely used.Currently, most of indoor environment monitoring system uses wire communication cloth under traditional approach
The method of net mode and manual measurement, there are cables to gather, difficult wiring, and networking is complicated, and measurement error is big, and operating efficiency is low,
The cable cost used is very high and very strong to the dependence of power cable, is unfavorable for equipment installation and removes upgrading, and system is not
Easy to maintain, power consumption is larger, and remote occasion is difficult to realize effectively monitor.Traditional Indoor Environment Detection data need special net
Pass does intermediate bridge and data is uploaded to platform, and indoor sensor, which needs to concentrate on one, has the agreements such as Zigbee by data
It is transmitted to gateway, data are uploaded to Cloud Server by internet communication agreement by gateway, thus realize interaction, this mode
The disadvantage is that at high cost, signal has blind area, but NB-IoT technology does not need special gateway, is equivalent to NB-IoT module and directly will
Data are uploaded to control of intelligent terminal.
The full name of NB-IoT is Narrow Band-Internet of Things, is the protenchyma based on cellular network
Networking technology, focuses on low-power consumption wide area network, and internet of things equipment is supported to connect in the cellular data of wide area network, can directly dispose with
LTE network can reduce lower deployment cost and realize smooth upgrade, be that one kind can a widely applied Internet of Things in the world
Technology, he has following advantage:
1. good mobility, meets remote control；
2. depth covers, the covering gain than GSM high 20db can be carried out user is in underground using NB-IoT technology
Data interaction；
3. having the ability for supporting magnanimity connection, mono- sector NB-IoT can support 100,000 connections, be traditional GSM logical
100 times or more of communication network concatenation ability；
4. data transmission bauds is fast, faster more than 2G network；
5. super low-power consumption, theoretically battery life 10 years, save charge maintenance trouble；And it is at low cost；
6. it is safer, it supports bi-directional authentification and eats dishes without rice or wine to encrypt, it is ensured that secure user data；
7. it is more stable, the access of carrier class is provided.
Utility model content
Purpose of the utility model is to solve the above problems, devise a kind of indoor air chemical pollution based on NB-IoT
System.
Realize that above-mentioned purpose the technical solution of the utility model is a kind of indoor environment monitoring system based on NB-IoT,
Including Zigbee terminal node, Zigbee coordinator host, the base station NB-IoT, Cloud Server and control of intelligent terminal；
The Zigbee terminal node includes at least one Zigbee environmental monitoring slave, the Zigbee environmental monitoring from
Machine is laid at random is detected indoor corresponding position, for indoor environment index to be perceived and acquired；The Zigbee
Environmental monitoring slave includes slave Zigbee wireless communication module, slave MCU main control module, slave power module and slave sensing
Device mould group；The slave Zigbee wireless communication module and slave sensor module are connected with slave MCU main control module, described
Slave power module is connected with slave Zigbee wireless communication module, slave MCU main control module and slave sensor module, point
It is other that each module is powered；
The Zigbee coordinator host includes host Zigbee wireless communication module, host MCU main control module, host electricity
Source module, host sensor mould group and NB-IoT module；The host Zigbee wireless communication module, host sensor mould group and
NB-IoT module is connected with host MCU main control module, the host power supply module with host Zigbee wireless communication module,
Host MCU main control module, host sensor mould group are connected with NB-IoT module, are powered respectively to each module；
The Zigbee terminal node and Zigbee coordinator host are by Zigbee wireless communication, by Zigbee ring
The indoor environment achievement data that border monitoring slave collects is sent to Zigbee coordinator host；The Zigbee coordinator master
Machine is connect by NB-IoT module with the base station NB-IoT, and the Zigbee coordinator host is for focusing on by Zigbee environment
Monitor the indoor environment data information of slave conveying；The base station NB-IoT is connected with Cloud Server, for coordinating Zigbee
The indoor environment data information transfer of device host acquisition is simultaneously stored in Cloud Server；
The control of intelligent terminal is connected with Cloud Server, for sending instructions to Zigbee coordinator by Cloud Server
Host.
Further, the slave sensor module includes Temperature Humidity Sensor, CO2 sensor, formaldehyde sensor, TVOC
Volatile gas sensor and PM2.5, PM10 sensor, the slave MCU main control module pass through I2C and Temperature Humidity Sensor
It is connected, the slave MCU main control module passes through serial ports respectively and CO2 sensor, formaldehyde sensor, TVOC volatile gas pass
Sensor is connected with PM2.5, PM10 sensor；The host sensor mould group includes Temperature Humidity Sensor, CO2 sensor, formaldehyde
Sensor, TVOC volatile gas sensor, PM2.5, PM10 sensor and smoke sensor device, the host MCU master control mould
Block passes through I2C is connected with Temperature Humidity Sensor, and the host MCU main control module passes through serial ports respectively and CO2 sensor, formaldehyde pass
Sensor, TVOC volatile gas sensor, PM2.5, PM10 sensor are connected with smoke sensor device；The Temperature Humidity Sensor
Model HDC1080；The model D5 of the dust sensor；The model MQ135 of the smoke sensor device.
Further, the Zigbee coordinator host further includes M-Bus serial ports conversion module and for acquiring Indoor Thermal
The calorimeter of energy heat, the M-Bus serial ports conversion module are connected with calorimeter, and the host MCU main control module passes through serial ports
It is connected with M-Bus serial ports conversion module；The Zigbee coordinator host further includes the E that power failure data is not lost2PROM, and
E2The model ATC2402 of PROM, the host MCU main control module pass through I2C and E2PROM is connected；The Zigbee coordinator
Host further includes the touch screen for human-computer interaction, and the host MCU main control module is connected by FSMC interface with touchscreen.
Further, the slave Zigbee wireless communication module and host Zigbee wireless communication module are all made of
CC2530 wireless transceiver.
Further, the slave MCU main control module and host MCU main control module are all made of STM32 series monolithic.
Further, the NB-IoT module uses WH-NB73 communication module.
Further, the WH-NB73 communication module constitutes circuit substrate using 6-layer circuit board.
Further, the WH-NB73 communication module built-in antenna and chip SIM card, the antenna are onboard antenna.
Further, the slave power module and host power supply module are all made of linear voltage regulator, and linear voltage regulator
Model LM1117-3-3, the input terminal of the slave power module and host power supply module is respectively connected with poly-lithium battery
Or one of charger.
Further, the host MCU main control module also passes through serial ports and is connected with Beidou module.
Compared with prior art, the utility model has the advantage that is with beneficial effect,
1. the utility model is inheriting GPRS indoor air chemical pollution function based on the indoor environment monitoring system of NB-IoT
While also possess magnanimity capacity, identical NB-IoT base station communication user capacity is 10 times of GPRS indoor air chemical pollution；In phase
Under the conditions of same use environment, NB-IoT can realize that ultra-long time is standby, and power consumption is up to 5 μ A, NB-IoT modules under PSM state
Stand-by time is 10 years or more, and the covering of new technology signal is stronger, can cover indoor and basement.
2. the low-power consumption super long standby time work of WH-NB73 communication module in the utility model, round-the-clock offer data transmission,
The base station NB-IoT possesses the connection number of magnanimity, while accessing Zigbee coordinator host up to 50,000 or more, can meet sea
The Zigbee coordinator host of amount accesses simultaneously；And NB-IoT module is suitble to more installation scenarios, can cover to indoor and ground
Lower room does not need professional yet and safeguards installation without signal covering problem is worried.
3. the utility model can be realized simultaneously to indoor temperature and humidity, CO2, formaldehyde, TVOC volatile gas, PM2.5,
PM10, dust multiple parameters are detected and are monitored simultaneously, and use NB-IoT module, without wiring, low-cost, receiving
Zigbee coordinator host number is more and is easily installed maintenance, it can be achieved that multiple spot detection, long-range to monitor.
Detailed description of the invention
Fig. 1 is the block diagram representation of indoor environment monitoring system of the utility model based on NB-IoT；
Fig. 2 is that the utility model is shown based on the block diagram of Zigbee coordinator host in the indoor environment monitoring system of NB-IoT
It is intended to；
Fig. 3 is block diagram of the utility model based on Zigbee environmental monitoring slave in the indoor environment monitoring system of NB-IoT
Schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1-3, a kind of indoor environment monitoring system based on NB-IoT, including Zigbee terminal node,
Zigbee coordinator host, the base station NB-IoT, Cloud Server and control of intelligent terminal；
The Zigbee terminal node includes at least one Zigbee environmental monitoring slave, the Zigbee environmental monitoring from
Machine is laid at random is detected indoor corresponding position, for indoor environment index to be perceived and acquired；The Zigbee
Environmental monitoring slave includes slave Zigbee wireless communication module, slave MCU main control module, slave power module and slave sensing
Device mould group；The slave Zigbee wireless communication module and slave sensor module are connected with slave MCU main control module, described
Slave power module is connected with slave Zigbee wireless communication module, slave MCU main control module and slave sensor module, point
It is other that each module is powered；The slave sensor module include Temperature Humidity Sensor, CO2 sensor, formaldehyde sensor,
TVOC volatile gas sensor and PM2.5, PM10 sensor, the slave MCU main control module pass through I2C and temperature and humidity pass
Sensor is connected, and realizes to the acquisition testing and monitoring of indoor temperature and humidity, the slave MCU main control module pass through respectively serial ports with
CO2 sensor, formaldehyde sensor, TVOC volatile gas sensor are connected with PM2.5, PM10 sensor, realize to interior
CO2, formaldehyde, TVOC volatile gas, PM2.5 and PM10 multiple parameters are acquired detection and monitoring simultaneously；It is described
Zigbee environmental monitoring slave further includes reset key, and the reset key is connected with slave MCU main control module, for slave
MCU main control module is resetted；
The Zigbee coordinator host includes host Zigbee wireless communication module, host MCU main control module, host electricity
Source module, host sensor mould group and NB-IoT module；The host Zigbee wireless communication module, host sensor mould group and
NB-IoT module is connected with host MCU main control module, the host power supply module with host Zigbee wireless communication module,
Host MCU main control module, host sensor mould group are connected with NB-IoT module, are powered respectively to each module；The host
Sensor module include Temperature Humidity Sensor, CO2 sensor, formaldehyde sensor, TVOC volatile gas sensor, PM2.5,
PM10 sensor and smoke sensor device, the host MCU main control module pass through I2C is connected with Temperature Humidity Sensor, realizes to room
The acquisition testing and monitoring of interior temperature and humidity, the host MCU main control module passes through serial ports respectively and CO2 sensor, formaldehyde sense
Device, TVOC volatile gas sensor, PM2.5, PM10 sensor are connected with smoke sensor device, realize to indoor CO2, first
Aldehyde, TVOC volatile gas, PM2.5, PM10 and smog multiple parameters are acquired detection and monitoring simultaneously；The temperature and humidity
The model HDC1080 of sensor；The model D5 of the dust sensor；The model MQ135 of the smoke sensor device；Institute
Stating Zigbee coordinator host further includes M-Bus serial ports conversion module and the calorimeter for both thermal heat in collection room, described
M-Bus serial ports conversion module is connected with calorimeter, and the host MCU main control module passes through serial ports and M-Bus serial ports conversion module
It is connected；The Zigbee coordinator host further includes the E that power failure data is not lost2PROM, and E2The model ATC2402 of PROM,
The host MCU main control module passes through I2C and E2PROM is connected；E2PROM is mainly used for storing the IP of host MCU main control module
The information such as location, and the performance that do not lost with power failure data；The Zigbee coordinator host further includes for human-computer interaction
Touch screen, the host MCU main control module are connected by FSMC interface with touchscreen, and the touch screen inputs letter for operator
Breath and various data informations are shown, convenient for operator local side use；The host MCU main control module is also logical
It crosses serial ports and is connected with Beidou module, there is positioning function, the positioning to Zigbee coordinator host may be implemented, from intelligent control
It will be seen that the location of Zigbee coordinator host can be assisted in conjunction with Zigbee in which cell and floor in terminal
Specific location locating for the faster convenient understanding Zigbee coordinator host of IP address in device host is adjusted, convenient for searching out phase
The use state of the Zigbee coordinator host and understanding Zigbee coordinator host answered；
The Zigbee terminal node and Zigbee coordinator host are by Zigbee wireless communication, by Zigbee ring
The indoor environment achievement data that border monitoring slave collects is sent to Zigbee coordinator host；The Zigbee coordinator master
Machine is connect by NB-IoT module with the base station NB-IoT, and the Zigbee coordinator host is for focusing on by Zigbee environment
Monitor the indoor environment data information of slave conveying；The base station NB-IoT is connected with Cloud Server, for coordinating Zigbee
The indoor environment data information transfer of device host acquisition is simultaneously stored in Cloud Server；
The control of intelligent terminal is connected with Cloud Server, for sending instructions to Zigbee coordinator by Cloud Server
Host.Also possess magnanimity while inheriting GPRS indoor air chemical pollution function based on the indoor environment monitoring system of NB-IoT
Capacity, identical NB-IoT base station communication user capacity are 10 times of GPRS indoor air chemical pollution；In identical use environment condition
Under, NB-IoT can realize that ultra-long time is standby, and power consumption is 10 up to the stand-by time of 5 μ A, NB-IoT modules under PSM state
Year or more, the covering of new technology signal is stronger, can cover indoor and basement.
The slave Zigbee wireless communication module and host Zigbee wireless communication module are all made of CC2530 and wirelessly receive
Device is sent out, CC2530 wireless transceiver has USART0 and USART1 dual serial communication interface, they can be separately operable in asynchronous
UART mode or synchronous SPI mode；Two USART have same function, can be set in individual I/O pin；This system choosing
USART0 serial communication interface is selected, is worked under UART mode；CC2530 wireless transceiver is based on 2.4GHzZigbee, should
CC2530 wireless transceiver supports world IEEE 802.15.4 standard and Zigbee, Zigbee PRO and Zigbee RF4CE mark
Standard, not only have outstanding RF performance, selectivity and the enhanced 8051MCU kernel of industrywide standard, support general low-power consumption without
Line communication, the standard compatibility or proprietary network protocol stack for being also equipped with TI company are developed to simplify.With programmable 256KB
Flash memory and some other powers, the CC2530 wireless transceiver possess external-connected port abundant, may operate at various modes
Under meet low-power consumption requirement under various system varying environments, be a real system on chip SoC solution；Due to CC2530
Wireless transceiver has a different operational modes, especially the desired system of adaptation super low-power consumption, when conversion between operational mode
Between it is short, further ensure low-power consumption consume.Slave power module and host power supply module are all made of linear voltage regulator, and linear
The input terminal of the model LM1117-3-3 of voltage-stablizer, the slave power module and host power supply module is respectively connected with polymer
One of lithium battery or charger, wherein alternating current 220VAC will be converted into 5VDC by charger, and poly-lithium battery can be straight
It connects and 5V voltage is provided, when alternating current power-off or inconvenient connection alternating current, poly-lithium battery can be directly used, to monitor system
Practical provide convenience；5VDC voltage is converted and is stablized in 3.3VDC by LM1117-3-3, with low-power consumption, low falls electricity
Pressure, Low Drift Temperature, output pressure stabilizing tolerance is ± 3% the features such as, to require the CC2530 wireless receiving and dispatching in 3.3VDC operating at voltages
Device provides stable voltage.Slave MCU main control module and host MCU main control module are all made of STM32 series monolithic, have
Serial ports and I abundant2C interface.
NB-IoT module uses WH-NB73 communication module, and the low-power consumption super long standby time of WH-NB73 communication module works, entirely
Weather provides data transmission, and the base station NB-IoT possesses the connection number of magnanimity, while accessing Zigbee coordinator host up to 5
Ten thousand or more, the Zigbee coordinator host of magnanimity can be met while being accessed；And NB-IoT module is suitble to more installation scenarios,
It can cover to indoor and basement, without signal covering problem is worried, also not need professional and safeguard installation；The WH-
NB73 communication module constitutes circuit substrate using 6-layer circuit board, has the performance of better radio frequency and stability；The WH-NB73
Communication module built-in antenna and chip SIM card, the antenna are onboard antenna, reduce the cost of design external antenna and are tired of
It is angry；It supports built-in chip SIM card, reduces volume, reduce design complexities, improve stability.
Working principle: it after Zigbee coordinator host is powered on by host power supply module, is initialized by starting code soft
Hardware module, then Zigbee coordinator host can scan channel, check whether to establish the success of Zigbee cordless communication network, such as
Fruit success, entire Zigbee coordinator host enters under wireless monitor mode, when there is the request of Zigbee terminal node to be added
When Zigbee cordless communication network, Zigbee coordinator host can distribute address automatically, finally by new network Zigbee terminal
Node address storage management, updates and the data of display associate device, Zigbee coordinator host will receive Zigbee environment
The data that slave transmission comes are monitored, and are sent to the base station NB-IoT, then instruction request, which is interrupted, returns, and formation follows one more
Ring Real-time Monitoring Data mode.
Slave sensor module in Zigbee environmental monitoring slave, which carries out indoor temperature and humidity, CO2, formaldehyde, TVOC, to wave
Hair property gas, PM2.5 and PM10 multiple parameters acquisition, and by serial ports by the indoor environment data information transfer of acquisition extremely
First MCU main control module of STM32 series monolithic, the first MCU main control module are analyzed and are stored to collected data, slave
MCU main control module connects slave Zigbee wireless communication module by serial ports, by using the slave of CC2530 wireless transceiver
The Zigbee wireless network that collected data are connected by antenna wireless is sent to Zigbee by Zigbee wireless communication module
Coordinator host；
Host sensor mould group in Zigbee coordinator host carries out that indoor temperature and humidity, CO2, formaldehyde, TVOC is volatilizable
The acquisition of property gas, PM2.5, PM10, smog and both thermal heat multiple parameters, Zigbee coordinator host further includes power failure data
The E not lost2PROM, E2PROM is mainly used for storing the information such as the IP address of the 2nd MCU main control module, and has power failure data
The performance that do not lose；The Zigbee coordinator host further includes the touch screen for human-computer interaction, and the touch screen is for grasping
Author inputs and information and shows to various data informations, convenient for operator local side use；
The data of Zigbee environmental monitoring slave acquisition by slave Zigbee wireless communication module and host Zigbee without
Zigbee wireless network and Zigbee coordinator main-machine communication between line communication module, transfer data to Zigbee coordinator
Host, the host MCU main control module in Zigbee coordinator host handle the indoor environment data information analysis received, then
Data are sent into the base station NB-IoT using NB-IoT private network by NB-IoT module, the base station NB-IoT is connected with Cloud Server, uses
In the indoor environment data information transfer for acquiring Zigbee coordinator host and it is stored in Cloud Server；Control of intelligent terminal with
Cloud Server is connected, for sending instructions to Zigbee coordinator host by Cloud Server or receiving Zigbee coordinator host
The data information of acquisition, the control of intelligent terminal such as mobile phone applications client may be implemented being capable of the environment number that monitors of real time inspection
According to Cloud Server transfers data to the control of intelligent terminal such as real-time PC machine monitoring platform, and monitoring platform is simultaneously to multiple rooms
The data of interior scene Zigbee terminal node acquisition are stored in real time, analyze and screen picture alternately displays, logical simultaneously
It crosses and needs to be arranged different transmission data time intervals when acquiring Zigbee terminal node, avoid interfering each other,
Then the data of each Zigbee terminal node are stored into the database of Cloud Server, data is checked after convenient.
Specifically: Zigbee coordinator host number is No. 1, and Zigbee environmental monitoring slave number consecutively is No. 2, No. 3
Until No. N, No. 1 Zigbee coordinator host passes through Zigbee wireless network to No. 2 Zigbee environmental monitoring slave hair lives first
It enables, requests No. 2 Zigbee environmental monitoring slave acquisition data, the slave Zigbee wireless communication in Zigbee environmental monitoring slave
Acquisition is sent to slave MCU main control module by serial ports by module, gives slave sensor module by slave MCU main control module
Acquisition is sent, slave sensor module, which receives, to be instructed and start to acquire indoor environment data information, then by the room of acquisition
Interior environment data information returns to slave MCU main control module, and slave MCU main control module passes through slave Zigbee wireless communication module
The indoor environment data information of acquisition is sent to Zigbee coordinator host, Zigbee environmental monitoring slave every 10 minutes into
The primary sampling of row, after data acquisition, transmission, automatically into dormant state, until next sampling period wakes up；Acquisition
After, No. 1 Zigbee coordinator host says the word to No. 3 Zigbee environmental monitoring slaves again, successively executes, until to
N Zigbee environmental monitoring slave says the word；The host sensor mould group in Zigbee coordinator host is to indoor environment simultaneously
Data are acquired and calorimeter is acquired the data of water inlet and water return outlet, are converted by the M-Bus serial ports of connection
Module sends data to host MCU main control module, finally passes through NB-IoT private network for the indoor ring of acquisition by NB-IoT module
Border data information is sent to the base station NB-IoT, is eventually sent to Cloud Server, for indoor environment information to be analyzed and deposited
Data are shown and are sent acquisition by the mobile phone applications client or PC machine of control of intelligent terminal by storage.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of indoor environment monitoring system based on NB-IoT, which is characterized in that assisted including Zigbee terminal node, Zigbee
Adjust device host, the base station NB-IoT, Cloud Server and control of intelligent terminal；
The Zigbee terminal node includes at least one Zigbee environmental monitoring slave, the Zigbee environmental monitoring slave with
Machine, which is laid on, is detected indoor corresponding position, for indoor environment index to be perceived and acquired；The Zigbee environment
Monitoring slave includes slave Zigbee wireless communication module, slave MCU main control module, slave power module and slave sensor die
Group；The slave Zigbee wireless communication module and slave sensor module are connected with slave MCU main control module, the slave
Power module is connected with slave Zigbee wireless communication module, slave MCU main control module and slave sensor module, right respectively
Each module is powered；
The Zigbee coordinator host includes host Zigbee wireless communication module, host MCU main control module, host power supply mould
Block, host sensor mould group and NB-IoT module；The host Zigbee wireless communication module, host sensor mould group and NB-
IoT module is connected with host MCU main control module, the host power supply module with host Zigbee wireless communication module, master
Machine MCU main control module, host sensor mould group are connected with NB-IoT module, are powered respectively to each module；
The Zigbee terminal node and Zigbee coordinator host are supervised Zigbee environment by Zigbee wireless communication
It surveys the indoor environment achievement data that slave collects and is sent to Zigbee coordinator host；The Zigbee coordinator host is logical
It crosses NB-IoT module to connect with the base station NB-IoT, the Zigbee coordinator host is for focusing on by Zigbee environmental monitoring
The indoor environment data information of slave conveying；The base station NB-IoT is connected with Cloud Server, is used for Zigbee coordinator master
The indoor environment data information transfer of machine acquisition is simultaneously stored in Cloud Server；
The control of intelligent terminal is connected with Cloud Server, for sending instructions to Zigbee coordinator master by Cloud Server
Machine.
2. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the slave sensing
Device mould group include Temperature Humidity Sensor, CO2 sensor, formaldehyde sensor, TVOC volatile gas sensor and PM2.5,
PM10 sensor, the slave MCU main control module pass through I2C is connected with Temperature Humidity Sensor, the slave MCU main control module point
It Tong Guo not serial ports and CO2 sensor, formaldehyde sensor, TVOC volatile gas sensor and PM2.5, PM10 sensor phase
Even；The host sensor mould group includes Temperature Humidity Sensor, CO2 sensor, formaldehyde sensor, TVOC volatile gas biography
Sensor, PM2.5, PM10 sensor and smoke sensor device, the host MCU main control module pass through I2C and Temperature Humidity Sensor phase
Even, the host MCU main control module passes through serial ports and CO2 sensor, formaldehyde sensor, TVOC volatile gas sensing respectively
Device, PM2.5, PM10 sensor are connected with smoke sensor device；The model HDC1080 of the Temperature Humidity Sensor；The dust
The model D5 of sensor；The model MQ135 of the smoke sensor device.
3. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the Zigbee association
Adjusting device host further includes M-Bus serial ports conversion module and the calorimeter for both thermal heat in collection room, and the M-Bus serial ports turns
Mold changing block is connected with calorimeter, and the host MCU main control module is connected by serial ports with M-Bus serial ports conversion module；It is described
Zigbee coordinator host further includes the E that power failure data is not lost2PROM, and E2The model ATC2402 of PROM, the host
MCU main control module passes through I2C and E2PROM is connected；The Zigbee coordinator host further includes the touch screen for human-computer interaction,
The host MCU main control module is connected by FSMC interface with touchscreen.
4. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the slave
Zigbee wireless communication module and host Zigbee wireless communication module are all made of CC2530 wireless transceiver.
5. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the slave MCU
Main control module and host MCU main control module are all made of STM32 series monolithic.
6. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the NB-IoT mould
Block uses WH-NB73 communication module.
7. the indoor environment monitoring system according to claim 6 based on NB-IoT, which is characterized in that the WH-NB73
Communication module constitutes circuit substrate using 6-layer circuit board.
8. the indoor environment monitoring system according to claim 6 based on NB-IoT, which is characterized in that the WH-NB73
Communication module built-in antenna and chip SIM card, the antenna are onboard antenna.
9. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that described from electromechanical source
Module and host power supply module are all made of linear voltage regulator, and the model LM1117-3-3 of linear voltage regulator, described from electromechanics
Source module and the input terminal of host power supply module are respectively connected with one of poly-lithium battery or charger.
10. the indoor environment monitoring system according to claim 1 based on NB-IoT, which is characterized in that the host MCU
Main control module also passes through serial ports and is connected with Beidou module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922311.3U CN208850076U (en) | 2018-11-21 | 2018-11-21 | NB-IoT-based indoor environment monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922311.3U CN208850076U (en) | 2018-11-21 | 2018-11-21 | NB-IoT-based indoor environment monitoring system |
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