Solution
LED Plant factory
Solution Type: Intelligent agriculture
Plant factory is the advanced stage of modern agriculture development, is a kind of high investment, high technology, precision equipment production system, bio technology, engineering technology and management in one system, the agricultural production from natural plant products are bound. The factory production of agricultural system according to the annual plan. In the process of agricultural industrialization is one of the high-tech achievements to absorb the most vitality and potential field, represents the future direction of agricultural development. Efficient agriculture system in plant factory through the facilities of high precision control to achieve continuous production environment of crops, is the use of computer to plant growth temperature, humidity, light, CO concentration and other environmental conditions of nutrient solution for automatic control, making the facility plant growth without or little affected by natural conditions restricting the production of energy saving.
Small plant factory covers an area of 200-500 square metres, the planting space is small, the amount of investment is relatively small, the efficiency of the high temperature control, automation equipment can also simplify the design, such as automation equipment can change to manual control, testing equipment can also use wireless data transmission instead of manual inspection, does not require automatic seeding equipment and automatic transmission and picking device, this small plant plant design goals can also complete plant factory, small plant factory chain can realize scale management.
Plant plants are generally divided into three types, namely:
Artificial light utilization plant factory;
Solar utilization plant factory;
Solar and artificial plants.
The advantages and disadvantages are as follows:
The use of wireless GSM network, and through a variety of external sensors on crop growth environment temperature, humidity and other environmental parameters and realize the real-time remote monitoring of crop image, image data and environment data through the GPRS back to the management center, management through the background data collection analysis and pest situation of farmland environment, and make timely preventive measures, and managers the backstage management center set up regular access to environmental data and pictures.
Sensing and execution layer:
This layer uploads the data collected by the data sensor through two modes of ZigBee and Rs485/232 to the gateway. According to the transmission mode, the greenhouse site deployment is divided into wireless version and wired version of two. The wireless version uses the ZigBee transmission module to transfer the sensor's value to the zigBee node; the wired version uses the cable way to transmit the data to the Rs485/232 node. Wireless version has the advantages of flexible deployment, easy expansion, etc. the wired version has the advantages of high speed deployment, data stability and so on.
The wireless sensor node can collect the temperature, humidity signal and the environmental parameters such as illumination, soil temperature, soil water content and CO2 concentration in the greenhouse, and upload them to the ZigBee gateway.
Receive remote control instructions, through the relay control various agricultural production equipment, including: spray, drip irrigation, water spraying system and shutter, fan and other air conditioning system.
Through the IP webcam, real-time crop, personnel, and secure video streams can be uploaded to the server.
Transport layer:
This layer mainly transmits the data collected by the device to the server through the 3G/GPRS/Inernet network, and supports the IPv4 current network protocol and the next generation Internet IPv6 protocol in the transmission protocol.
Application layer:
This layer is responsible for the storage and processing of the collected data, and provides the basis for analysis and decision making for the user. The user can query at any time and anywhere through computers and mobile phones.
Subscriber terminal:
3G mobile phones and PC terminals access real-time data from sensors by accessing the network.
A rich variety of sensors:
The use of various sensor types of agricultural production, according to the different crops, including air temperature, air humidity, soil temperature, soil moisture, soil pH, light (intensity and time), the wind, the concentration of carbon dioxide (which can also measure other gas concentration), dissolved oxygen content, leaf water and other 200 kinds of sensors, including temperature, humidity, light, carbon dioxide concentration is the main sensor with several agricultural.
The system has adopted many kinds of systems in the network, the long-distance communication uses the 3G wireless network, the close distance transmission, adopts the wireless ZigBee pattern, guarantees the network system the stable movement.
This system is mainly the use of artificial light type plant factory, it is completely closed in controlled environment color artificial light and nutrient solution cultivation techniques, in almost no external climate conditions affect the environment, a way to plant annual production, the main features are as follows:
1, the building structure is fully enclosed, airtight, roof and wall materials opaque, heat insulation better;
2, only the use of artificial light source, light source characteristics better, such as LED lights;
3, using plant on-line detection and network management technology, continuous detection and information processing of plant growth process are carried out;
4, the use of nutrient solution cultivation methods, completely without soil or even substrate;
5, it can effectively inhibit the invasion of pests and pathogenic microorganisms, and realize pollution-free production without the use of pesticides;
6, the facilities in the light, temperature, humidity, CO2 concentration and nutrient elements such as liquidated damages can be accurately controlled, bright and dark period can be adjusted, plant growth is relatively stable, can achieve balanced production;
7, the system technology, equipment and facilities construction costs are high, energy consumption, high operating costs, so the current stage for high economic value