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Wiki source code of WECON Smart Agriculture

Last modified by Leo Wei on 2022/06/08 06:27
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Leo Wei 1.1 1 {{id name="_Toc16394"/}}
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3 == 1.V-NET ==
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5 === 1.1 {{id name="_Toc8851"/}}{{id name="_Toc5809"/}}WECON IIOT System ===
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7 V-NET is a general IIOT platform with lightweight that can be re-developed. Users can quickly build industrial Internet applications based on their own needs through the use of V-NET and V-BOX to achieve device management, data connection, unattended operation and remote operation.
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9 [[image:1622544452821-204.png]]
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12 === 1.2 {{id name="_Toc23130"/}}{{id name="_Toc12844"/}}{{id name="_Toc21277"/}}V-NET Server ===
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14 V-NET is a general industrial Internet platform independently developed by WECON. There are three severs deployed globally:
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16 [[image:1622544556323-738.png]]
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19 (((
20 === ​​​​​​​1.3 {{id name="_Toc342"/}}{{id name="_Toc19683"/}}{{id name="_Toc14872"/}}The Security Framework ===
21 )))
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23 V-NET advocates a comprehensive and security system structure: we have corresponding safety measures to guarantee security for any function of V-NET .
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25 According to the modules of the system, V-NET security can be divided into 4 parts:
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27 * **Hardware Security**: To identify and reject unauthorized access requests, prevent gateway hardware from being illegally copied, and confirm request sent by the platform to ensure equipment, hardware and communication safety.
28 * **Platform Security:** To prevent unauthorized devices and users from accessing to the platform,prevent unauthorized users from accessing the platform,prevent unauthorized use or access to user data. 
29 * **Communication Security**: To prevent communication from being eavesdropped and hijacked, prevent the disclosure of user information during communication.
30 * **User Security**: To block improper or dangerous user operations, verify user identity and remind users to protect personal information.
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32 [[image:1622544605800-399.png]]
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35 (((
36 == 2.Smart Agriculture ==
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38 === {{id name="_Toc31806"/}}2.1Background & Significance ===
39 )))
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41 With the continuous development of cities, environmental problems become more and more serious. At the same time, with the decrease of cultivated land, vegetable planting in greenhouses has gradually become the main content of new agricultural development. Agricultural intelligent greenhouse is a technology that applies IIOT technology to traditional agriculture, collects data of various sensors in greenhouse by industrial control technology, and transmits it to relevant platform through IIOT network. This technology realizes the detection, image and data storage of parameters such as soil moisture, soil temperature, air temperature, air humidity, light intensity, CO2 content and analysis based on the collected data to achieve temperature adjustment, air exchange, automatic irrigation, automatic ventilation, automatic rolling curtain such as automatic control, and remotely timely monitoring, so as to improve the efficiency of production and operation. Besides, the manager can realize the real-time visual control of all greenhouses remotely.
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43 === 2.2 {{id name="_Toc12813"/}}Current Situation ===
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45 Agriculture is the foundation of China's national economy and it is an important industry related to the national economy and people's livelihood, however, the long-term backwardness of our country's agriculture has not completely changed. The report of the 19th National Congress of the Communist Party of China and the national ‘13th Five-Year Plan’ both put the promotion of agricultural modernization development in an important position. At present, our country’s agriculture industry is in a critical period of transition from traditional agriculture to modern agriculture, facing pressure from resources, environment and labor. Agriculture is developing in the direction of digitization, precision, intelligence and ecology. Vegetable planting in greenhouses is gradually becoming the main content of new agricultural development.
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47 === 2.3 Development Tendency ===
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49 At present, the development of smart agriculture is in initial stage. In the future, with the introduction of the national ‘Internet +’ plan, modern information technology will quickly penetrate into the agricultural field. The development of smart agriculture will enter a period of acceleration and smart agriculture will become the commanding heights of modern agriculture.
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51 (((
52 == 3. ​​​​​​​{{id name="_Toc12976"/}}{{id name="_Toc67487269"/}}{{id name="_Toc18840"/}}System Architecture & Application for The Smart Agriculture System ==
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55 === {{id name="_Toc8586"/}}3.1 System Architecture ===
56 )))
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58 WECON smart agriculture system adopts a four-layer structure system of application layer , network layer, equipment layer and sensor layer:
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60 **{{id name="_GoBack"/}}Application layer (Management layer)：**This layer will combine the IIOT technology with industry professional systems to reach a wide range of IIOT applications, reach the collection, development, utilization and storage of information resources, and form a dynamic data resource library that is adapted to business needs and updated in real time. It will also provide unified information resource support for all types of businesses.
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62 **Network layer: **This layer will transmit all kinds of information from the device layer to the application service layer through the network, and provide reliable data transmission for the device layer and the application layer.
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64 **Device layer: **According to the system settings, this layer will react to the results from the sensing layer to achieve intelligent control.
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66 **Sensing layer: **This layer will obtain physical data (light, air, temperature and humidity data, audio and video data, etc.) that occur in the agricultural environment.
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68
69 === ​​​​​​​3.2 Platform Deployment: OpenCloud Model ===
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71 There is no need to go through V-NET and the user’s device can be directly connected to the third-party cloud platform through V-BOX. It can support the gateway's own definition and report the data to the platform. The agreement which is connected to the cloud platform can be modified at any time.
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73 [[image:1622544887114-588.png]]
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75 === ===
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77 === 3.3 {{id name="_Toc1038"/}}Control Method for Device Layer ===
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79 WECON Smart Agriculture Solution communicates with various environmental sensors through MODBUS with PLC RS485 including: air temperature and humidity, soil temperature and humidity, light intensity, wind direction and speed, soil EC/PH value, etc. The extended RS485 port is used as a slave station for data exchange with LED large screens or other devices.
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81 [[image:1622544927533-674.png]]
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83 (((
84 === 3.4 {{id name="_Toc30639"/}}The Goal of System Construction ===
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87 * To apply the IOT technology to traditional agriculture, use industrial control technology to collect data from various sensors in the greenhouse, and upload it to the relevant platform through the IOT smart gateway.
88 * To realize the detection and data storage of soil moisture, soil temperature, air temperature, air humidity, light intensity, CO2 content and other parameters. To analyse based on data to achieve temperature adjustment, light changing, ventilation, automatic irrigation, automatic ventilation, automatic rolling shutters. It can be remotely monitored in time to improve the efficiency of production and operation. Managers can remotely control all greenhouses in real time.
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90 [[image:1622544989490-324.png]]
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92 === ===
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94 (((
95 === 3.5 System Application Scenarios ===
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98 The remote solution of intelligent greenhouse control and maintenance is mainly composed of environmental weather station subsystem, greenhouse intelligent environmental control subsystem, intelligent irrigation (drip irrigation) control subsystem and other parts. It can remotely obtain the air temperature and humidity, soil moisture temperature, carbon dioxide concentration, light intensity and video images inside the greenhouse in real time. The system can automatically control curtain fans, sprinkler irrigation, internal and external sun-shading, top and side windows, heating and lighting and other equipment through the function of intelligent analysis and control. At the same time, the system can also send real-time monitoring information and alarm information to managers by mobile phones and computers.
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101 [[image:1622545012868-939.png]]
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105 ==== 3.5.1 The Subsystem of Environmental Weather Station ====
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107 The environmental weather station is divided into indoor and outdoor environments. The control plan mainly adopts the maintenance and control PLC: LX-3V0806MR+RS485BD HMI PI3070 and V-BOX.
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109 The real-time environmental monitoring data is mainly used for MODBUS communication with various environmental sensors through PLC RS485 including: air temperature and humidity, soil temperature and humidity, light intensity, wind direction and wind speed, soil EC/PH value, etc. The extended 485 port is used as a substation for data exchange with LED large screens or other devices.
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111 The screen is mainly used to view the real-time data of various environmental weather stations locally.
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113 Through the maintenance and control V-BOX, the environmental data of the greenhouse can be obtained remotely in real time for analysis and viewing.
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115 **For examples:**
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117 [[image:1622545073860-560.png]]
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119
120 ==== 3.5.2 The Subsystem of Smart Greenhouse ====
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122 We set the operation threshold of production equipment according to the actual environmental element index requirements of crop growth, so that the equipment can be turned on/off for a specific period of time. The setting of the equipment operation strategy can make the production equipment accessible and automated 24 hours a day, intelligently respond to the changes in the production environment, and start an automated operation mode. The control terminal realizes remote intelligent control of agricultural production equipment based on the monitored environmental data, such as shading, heat preservation, lighting, ventilation and other equipment.The system supports remote and local automatic control.
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124 [[image:1622545088037-125.png]]
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128 (((
129 ==== 3.5.3 The Subsystem of Smart Irrigation ====
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132 The control scheme mainly adopts WECON PLC LX-3V3624MR+RS485BD, HMI PI8102 and V-BOX.Water and fertilizer integration technology is a new agricultural technology that integrates irrigation and fertilization. It is based on the pressure system (terrain drop) to mix soluble solid or liquid fertilizers according to the nutrient content of the soil and the fertilizer requirement of the crop type. Water and fertilizer through controllable pipeline system,after the water and fertilizer are fused, a uniform, regular, and quantitative drip irrigation is formed through the pipe to infiltrate the root growth area of the crop. Keep the soil of the main root system always loose and suitable water content. According to the characteristics of fertilizer requirements of different crops, soil environment and nutrient content, crops need water during different growth periods, and the law of fertilizer requirements, the requirements of different growth periods are designed. Water and nutrients are quantified and provided to crops in proportion.
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134 [[image:1622545126904-788.png]]
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136 [[image:1622545144366-476.png]]
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139 (((
140 === {{id name="_Toc32224"/}}3.6 Program Effects ===
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142
143 ==== 3.6.1 Management Interface ====
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146 [[image:1622545203404-667.png]]
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149 (((
150 ==== 3.6.2 Cloud SCADA ====
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153 [[image:1622545255655-561.png||height="419" width="791"]]
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156 (((
157 == 4.The Summary ==
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159 === {{id name="_Toc5"/}}4.1 Advantages ===
160 )))
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162 * **One person, One APP, One farm**
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164 By building a comprehensive IOT monitoring network on site, we could grasp the climate environment, soil moisture and crop growth of the production base in real time.
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166 At the same time, it can remotely control on-site agricultural equipment to achieve 24-hour monitoring, intelligent early warning of abnormal conditions, timely elimination of dangers and disasters, precise control of equipment. It will ultimately achieve the purpose of reducing costs, improving efficiency, yield and quality as well as realize unattended of remote operation and maintenance.
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168 [[image:1622545319669-576.png]]
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172 * **Centralized Management**
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174 One irrigation gateway will simultaneously control irrigation nodes within a radius of 6 kilometers, and 1 node will be connected to 2 solenoid valves for centralized management. And each operation will generate an operation log, so that the operation of the device can be found.
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176 * **Intelligent Decision-making to Save Resources**
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178 {{id name="_Toc67487278"/}}Users can use computers, APP and other terminals to achieve timing irrigation and control irrigation parameters. The system has been improved many times through practice, with reasonable logic and excellent results.
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180 === 4.2 {{id name="_Toc24187"/}}Summary ===
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182 Smart agriculture allows employees to sit at home and just use their mobile phones to send a message, then they can remotely complete processes such as automatic raising and lowering of the quilt, automatic opening and closing of the air outlet, automatic irrigation and fertilization of the greenhouse roller shutter machine. Smart agricultural main control equipment has the characteristics of scientific intelligence, low cost, safety and reliability, and time saving.
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184 At present, China's agriculture is still a shortcoming to achieve "four modernization", and structural problems are also very prominent. There are not only problems with the industry's own structure, but also with regional structural problems. There is still a long way to go.