CN105607152A - Wireless-sensor-network-based microenvironment meteorological parameter acquisition system and realization method - Google Patents

Abstract

A wireless sensor network-based micro-environment meteorological parameter acquisition system and an implementation method belong to the field of electronic communication. It is characterized in that it includes: a micro-environmental meteorological parameter collection node device, an embedded wireless sensor network gateway device, and a cloud meteorological parameter data server; wherein the micro-environmental meteorological parameter collection node device is used to include temperature, humidity, gas composition and particle concentration The timing collection and summary of the system; the data is uploaded to the wireless sensor network gateway of the system through the wireless sensor network; the gateway regularly uploads the data to the cloud meteorological parameter data server with the help of the GPRS module; the cloud meteorological parameter data server: completes the data summary and Storage, which provides data retrieval and display of data analysis results.

Description

A micro-environmental meteorological parameter acquisition system and implementation method based on wireless sensor network

technical field

The invention belongs to the field of electronic communication, and relates to a system and method for collecting micro-environment meteorological parameters.

Background technique

Data acquisition technology and wireless networking technology occupy an important position in the field of information technology application. The interconnection of micro-environmental meteorological parameters through sensor networks is a typical application of data acquisition technology and wireless networking technology. At present, people are increasingly concerned about the meteorological parameters (such as temperature, humidity, Pm2.5 concentration, light pollution degree) of specific places such as their living or office environment.

At present, the measurement of micro-environmental meteorological parameters is still based on single-point measurement. For office places such as buildings, it only stays at single-point measurement and real-time data display, and cannot provide real-time data of comprehensive meteorological parameter measurement between multiple rooms or even multi-layer rooms, and historical data retrieval. Unable to provide first-hand reference data for Anju.

Contents of the invention

The invention proposes a micro-environment meteorological parameter collection system and an implementation method based on a wireless sensor network. The system can realize micro-environment meteorological parameter collection, storage and data retrieval. The system and network building method provided by the invention are not restricted by the environment, are convenient for installation and can flexibly set up a network structure, and realize the collection of micro-environmental meteorological parameters.

In order to achieve the above object, the present invention adopts the following technical solutions.

A micro-environmental meteorological parameter collection system based on a wireless sensor network, characterized in that it includes: a micro-environmental meteorological parameter collection node device, an embedded wireless sensor network gateway device, and a cloud-based meteorological parameter data server;

Among them, the micro-environment meteorological parameter collection node equipment is used to collect and summarize the temperature, humidity, gas composition and particle concentration regularly; upload data to the wireless sensor network gateway of this system through the wireless sensor network; micro-environment meteorological parameter collection The node equipment includes sensors, CPU, memory, digital filter, human-computer interaction keys and wireless networking module; where the memory is used to store programs, configuration parameters and measurement result data; the digital filter is used to filter out noise in the measurement signal; The wireless networking module automatically builds the sensor network wirelessly in the micro-environment and completes the data transmission;

The embedded wireless sensor network gateway device collects and stores the meteorological parameter data collected by multiple micro-environment meteorological parameter collection node devices through the wireless sensor network, and uploads the data to the cloud meteorological parameter data server at regular intervals by means of the GPRS module; Cloud Meteorological Parameter Data Server: Complete data aggregation and storage, provide data retrieval and display of data analysis results.

The method for collecting micro-environment meteorological parameters by using the system is characterized in that it comprises the following steps:

Step 1, set up a sensor network and set network parameters;

Step 2, detecting the number of nodes connected to the network through the embedded wireless sensor network gateway device;

Step 3, the micro-environmental meteorological parameter collection node device collects environmental parameters;

Step 4, summarize the node data through the embedded wireless sensor network gateway device, and upload it to the cloud server;

In step 5, the cloud server completes data aggregation, processing and storage.

The client retrieves real-time and historical meteorological parameter data through APP or browser.

Compared with the prior art, the present invention has the following advantages:

1. Flexible and convenient networking structure. The micro-environment networking is completed by short-distance networking, and the Internet of Things cloud platform is used to intervene in the Internet.

2 convenient data retrieval methods. Using the mobile terminal in the form of APP or browser, you can display real-time data and retrieve historical data through intuitive graphic display or database retrieval, and provide reference for meteorological data for travel and housing.

Description of drawings

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

Fig. 2 is a composition block diagram of the embedded data acquisition node adopted by the embodiment of the present invention;

Fig. 3 is a composition block diagram of the embedded short-distance wireless sensor gateway adopted by the embodiment of the present invention;

detailed description

The present invention will be further described below according to the accompanying drawings and embodiments.

The structure of the system of the present invention is shown in FIG. 1 , including: an embedded data acquisition node 1 , a short-distance wireless sensor gateway 2 , a cloud server module 3 , and a mobile terminal display 4 . in,

Data collection node 1: used to complete data collection, automatically form a network, and transmit data to the short-distance wireless sensor gateway 2 through the established wireless sensor network for the summary of original meteorological parameter data. The data acquisition node 1 of the present embodiment adopts an embedded structure, and is composed as shown in Figure 2, and consists of a minimum system 11 of a single chip microcomputer, a sensor module 12, an I/O interface module 13, a wireless sensor network unit module 14, a local communication interface 15, etc. composition. The minimum single-chip microcomputer system 11 selects Cortex series CPU and its subsidiary minimum working system, such as STM32. The sensor module 12 is used to collect meteorological parameters, convert them into digital quantities, and transmit them to the embedded minimum system 11 . The I/O interface module 13 is used to connect external buttons and indicator lights to complete local setting and status indication. The wireless sensor network unit module 14 is used to form a wireless sensor network, and a ZigBee communication module can be selected to realize the ad hoc network function. The local communication interface 15 is used for local management, such as program download, self-check and status query display.

Short-distance wireless sensor gateway 2: establishes a sensor network with the wireless sensor network unit module of data collection node 1, and receives meteorological parameter data collected by the node through the network. Complete data storage and local human-computer interaction functions. The data is regularly uploaded to the cloud meteorological parameter data server with the help of the wireless communication module. The control module 1 of the present embodiment adopts an embedded structure, and its composition is as shown in Figure 3, consisting of an embedded CPU 21, a human-computer interaction interface module 22, a memory 23, a wireless sensor network unit module 24, a display unit 25, and a GPIO multiplexing interface 26. The wireless transmission unit module 27 and other components. Embedded CPU21 selects ARM series CPU, such as S5pv210. The memory 23 is used to store programs, configuration parameters and measurement result data. The wireless transmission unit module 27 completes data upload to the cloud server module, and a Wi-Fi communication module can be selected.

The method for collecting micro-environment meteorological parameters by the system comprises the following steps:

Step 1, configuring the data collection nodes of the system of the present invention.

Step 1.1, according to the measured environmental parameters (temperature, humidity, particle concentration, light, wind speed, wind direction, atmospheric pressure, etc.), select the corresponding sensor module 12, and connect to the minimum system 11 of the single-chip microcomputer.

Step 1.2, configure sensor network parameters: turn on the power of data acquisition node 1, and use the external buttons of I/O interface module 13 to set the sensor network working frequency band and data acquisition time interval of data acquisition node 1.

Step 1.3, turn on the power of the data acquisition node 1, use the external button of the I/O interface module 13 to start the self-inspection function, and when the external self-inspection status indicator light of the I/O interface module 13 is used to light up, it means that the self-inspection has passed. After passing the self-test, the data acquisition node 1 enters the automatic networking mode, waits for the networking command issued by the short-distance wireless sensor gateway 2, and joins the local wireless sensor network.

Step 2, configuring the short-distance wireless sensor gateway of the system of the present invention.

Step 2.1, configure sensor network parameters: short-distance wireless sensor gateway 2, human-computer interaction interface module 22 external buttons to set sensor network working frequency band and data collection time interval.

Step 2.2, turn on the power of the short-distance wireless sensor gateway 2, and start the self-test function with the external button of the human-computer interaction interface module 22. When the external self-test status indicator light of the human-computer interaction interface module 22 is on, it means that the self-test has passed. After the self-test is passed, the short-distance wireless sensor gateway 2 issues a networking command to discover and add the local data collection nodes to the wireless sensor network.

Step 2.3, use the external buttons of the human-computer interaction interface module 22 to cooperate with the display unit 25 to display the status information of all data acquisition nodes 1 that have joined the wireless sensor network. Adjust the sensor module 12 of the data acquisition node 1 and the installation position of the data acquisition node 1 according to the displayed content to ensure that the data acquisition nodes in the wireless sensor network can work normally and can be added to the wireless sensor network normally.

Step 2.4, turn on the power of the short-distance wireless sensor gateway 2, and use the external buttons of the human-computer interaction interface module 22 to cooperate with the display unit 25 to display the status information of the wireless transmission module 27. Configure the network information and local communication rate of the wireless transmission module 27 according to the displayed content to ensure that the wireless transmission module 27 can be added to the cloud server module 3 and can realize normal data transmission.

Step 3, configuring the cloud server of the system of the present invention.

Step 3.1, select cloud server: cloud server 3 can choose a popular general platform (such as YeeLink Internet of Things cloud platform, Lelian public platform Internet of Things platform) or design a cloud platform by yourself.

Step 3.2, configure wireless network parameters: configure sensor network parameters so that the cloud server 3 can work normally.

Step 3.3, configure the cloud server:

Step 3.3.1, allocate and configure cloud server resources, and connect multiple short-distance wireless sensor gateways 2 to the cloud server 3 . According to the access situation, adjust the installation position of the short-distance wireless sensor gateway 2 to ensure that all short-distance wireless sensor gateways 2 are connected to the cloud server 2 .

Step 3.3.2, set the cloud server data format. According to the data type, the display format of the environmental parameter data collected by the cloud server 3 can be numerical value, graph and other formats.

Step 4, the use process of the micro-environmental meteorological parameter collection system of the wireless sensor network.

Step 4.1, start the micro-environment meteorological parameter collection system of the wireless sensor network to make it work normally.

In step 4.2, use the mobile terminal 4 to access the cloud server 3 through a browser or a self-designed APP to complete the browsing of micro-environment meteorological parameter data and the retrieval of historical data.

Claims (2)

1. The utility model provides a microenvironment meteorological parameter collection system based on wireless sensor network which characterized in that includes: the system comprises microenvironment meteorological parameter acquisition node equipment, embedded wireless sensing network gateway equipment and a cloud meteorological parameter data server;

wherein the microenvironment meteorological parameter acquisition node equipment is used for acquiring and summarizing temperature, humidity, gas components and particulate matter concentration at regular time; uploading data to a wireless sensor network gateway of the system through a wireless sensor network; the microenvironment meteorological parameter acquisition node equipment comprises a sensor, a CPU, a memory, a digital filter, a human-computer interaction key and a wireless networking module; wherein the memory is used for storing programs, configuration parameters and measurement result data; the digital filter is used for filtering noise in the measuring signal; the wireless networking module automatically establishes a sensing network in a wireless mode under a microenvironment and completes data transmission;

the embedded wireless sensor network gateway equipment collects the meteorological parameter data acquired by the multiple microenvironment meteorological parameter acquisition node equipment through a wireless sensor network to complete local storage, and uploads the data to the cloud meteorological parameter data server by virtue of the GPRS module in a timing manner; cloud meteorological parameter data server: and summarizing and storing the data, and providing data retrieval and data analysis result display.

2. The method for acquiring microenvironment meteorological parameters by using the system of claim 1, comprising the following steps:

step 1, establishing a sensing network and setting network parameters;

step 2, detecting the number of nodes accessed to the network through embedded wireless sensor network gateway equipment; (ii) a

Step 3, collecting environmental parameters by the microenvironment meteorological parameter collection node equipment;

step 4, summarizing node data through the embedded wireless sensor network gateway equipment, and uploading the node data to a cloud server;

and 5, the cloud server finishes data gathering, processing and storage.