chrispeng [ad_1]
1. Background overview:
For large-scale greenhouse planting, manual management alone requires a lot of manpower, which is laborious and time-consuming, and there are unavoidable manual errors. Through the Internet of Things system, a large part of the manager’s time and energy can be released first, and efficiency can be improved. The same manual can increase the management of several times the greenhouse, and precise management can provide crop quality and increase revenue.
The system collects real-time environmental data such as air temperature and humidity, soil moisture, soil temperature, carbon dioxide, and light intensity in the greenhouse, and transmits it to the control center. The central platform system compares the latest monitoring data with pre-set environmental parameters suitable for crop growth. If it is found that the data monitored by the sensor deviates from the preset value, the computer will automatically issue instructions to intelligently start the fans, shading, humidification, watering and other equipment connected to the system to work until the environmental data in the greenhouse reaches the system preset value. The relevant equipment will stop working only within the range of the data set.
Through the intelligent control system, the precise water and fertilizer supply according to the needs of the crops can effectively save the use of water and fertilizer, save resources, avoid waste, and cause damage to the land due to excessive use. At the same time, it helps to save energy, reduce fertilizer pollution, improve the quality of agricultural products, and contribute to agricultural energy saving and emission reduction, environmental protection and the development of a low-carbon economy. The social benefits are very considerable.
2. LoRa technical characteristics of wireless communication technology:
As a long-distance communication technology of low-power wide area network (LPWAN), LoRa has received more and more attention in recent years. Cisco, IBM, Semtech, Microchip, etc. are actively promoting LoRa technology.
The advantage of LoRa lies in its long-distance technical capabilities. LoRa technology has outstanding features in terms of high performance, long distance, low power consumption, support for large-scale networking, ranging and positioning, which makes this solution (terminal + gateway) an ideal for large-scale promotion and application of the Internet of Things Technology choices.
Features and advantages
Sensitivity -148dBm
Communication distance>15 km long distance
Minimal infrastructure cost
Use gateway/concentrator to expand system capacity, easy to build and deploy
Battery life> 5 years
Receive current 10 mA, sleep current <200 nA, extend battery life
License-free frequency band
Node/terminal cost is low and low cost
3. Collection of climate and environmental parameters
Through the Internet of Things system, sensors can be connected to collect environmental temperature and humidity, illuminance, wind speed, carbon dioxide concentration, etc.
4. Collection of soil environmental parameters
Through the Internet of Things system, sensors can be connected to collect soil temperature, soil moisture, soil salinity, PH value, etc.
5. Application of Intelligent Control System
Through the Internet of Things system, the environmental conditions for the operation of various equipment in the greenhouse can be set. When the environmental information does not meet the pre-established conditions, the relevant equipment in the greenhouse will be automatically activated. At present, it covers water valve intelligent precision control system, precise ventilation intelligent control system, high-precision intelligent roller shutter control system, intelligent fill light control system, intelligent ventilation control system, intelligent shading control system, intelligent high-power control system, intelligent fusion system Wait.
Six, agricultural monitoring system
The monitoring system uses personal computers and smart phones to realize real-time monitoring of agricultural production site weather, soil, and water source environment, and realizes remote automatic control of agricultural facilities such as irrigation, ventilation, cooling, and temperature increase in greenhouses. Combine powerful functions such as live video and intelligent warning. The system can help agricultural workers grasp the growth status of crops and the trend of environmental changes anytime and anywhere, and provide users with a set of efficient, convenient, and powerful agricultural monitoring solutions.
[ad_2]
