Considering the current situation that the temperature control systems in market have the general disadvantages of complicated structure, high power consumption and tremendous cost, a new greenhouse temperature supervising system is designed, with a Arduino Mega 2560 single chip microcomputer as the core, XBEE as the short distance wireless transferring tools, and with function of displaying information in computers and remote control. The core component of this system is the Arduino software-hardware open source platform, which is currently popular in the market. This platform embraces the excellence of stability, low power consumption, cheap cost and easy operation as its advantages and selling points. XBEE can constitute the mesh network, each module of which can supplied as the route node, coordinator and terminal node. This system can achieve the functions of collecting data from sensors while is capable of displaying these data in the computers and put them under the network remote control. Easy to install, it can simultaneously achieve network monitoring several greenhouses. Enormous convenience to production inside the greenhouse is fulfilled due to these mentioned features as well, which makes it suitable to the small scale agricultural production.
Microwaves represent an alternative way of power input into distillation process. Through dielectric heating, reaction mixtures are homogenously heated without contact to a wall. Reaction times are significantly reduced compared to conventionally (thermally) heated systems while maintaining selectivity. In this paper, microwave field select heating on two-phase system has been investigated numerically and experimentally. Temperature increasing, heat transfer and evaporation during heating process were analyzed. The possibility of microwave used for distillation was examined and proposed.
This paper introduced a monitoring system of rice production, which can monitor the ambient temperature, humidity, the temperature of rice water and soil and Terrace surface runoff water in the process of rice production. All the testing data are firstly aggregated to a cluster node, and then transmitted to network datacenter through the GSM, so that users can access the datacenter server for the data related to the production environment. The monitoring system has been installed in the experimental field at the village of Qingkou, Yuanyang County, Yunnan Province. It has been running normally for one year. The system can monitor the real-time meteorological factors affecting the growth of rice, which provides the supporting data for exerting comprehensive control of insect pests and studying in-depth the problems of water terraces and nutrient balance before increasing the yield of rice and improving the quality of rice.
This paper introduces a design about a temperature monitoring system for traditional fermentation process. C Language , C #Socket Communication mechanism combined with wireless sensor network technology and WiFi wireless communication technology, are used for monitoring the temperature changes throughout the fermentation process. The sensor nodes collecte temperature during the fermentation process. First, the aggregated data is collected to a concentrator, then transmitted to the application server via WiFi wireless network. User can use a computer or cell phone to access the Web server for acquisition of the related fermentation temperature data via the Internet. These data can provide the support for further study on how to improve the fermentation yield, shorten the fermentation cycle and reduce the consumption of raw materials.
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