Design And Development Of Information Collection System For Breeding Farm

With the development of the traditional breeding industry towards modernization and informatization, the information collection becomes significant to improve the automation level of breeding farm. However, in the traditional breeding farm, the production information still heavily relies on manual collection and evaluation. Not only does the traditional situation take too many human resources, but also it can’t detect various information accurately and timely in the process of breeding. Further more, it can’t provide the optimal growth environment for livestock. Finally, it restricts the comprehensive benefit of the breeding farm. Meanwhile, a comprehensive information monitoring system can effectively avoid the occurrence of the epidemic. So it is very important to collect and analyze the information in real time.In this paper, we analyze environmental monitoring technology at home and abroad. Traditionally, the information monitoring level is low, the information monitoring is not comprehensive, and wiring is not convenient in the livestock house. Aiming at the problem, we design a kind of information collection system for the breeding farm. For one thing, the system can collect temperature, humidity, NH3 concentration, wind speed, water and electricity consumption of breeding farm livestock house, and it can also send them to the information monitoring subsystem through the wireless network for display, storage, analysis, query and alarm. For another, the system can evaluate the comfort degree of breeding environment through the multi-sensor information fusion, providing the basis for optimal growth environment control. The main work of this paper is as follows:(1) Scheme of information collection system for breeding farm is designed. The system scheme includes two parts:the information collection and transmission subsystem scheme, and the information monitoring subsystem scheme. We analyze the main information collection target, and select the sensors combined with the environment of breeding farm. According to the communication distance, stability and networking mode of the transmission network, the information transmission scheme is designed. The sensor data is collected through the wired way, and transmited by the ZigBee mesh network. According to the original location structure and CFD software simulation analysis of livestock house, terminal collection node placement scheme is designed. On the basis of database, we design the information monitoring subsystem, which receives the data from the ZigBee coordinator and displays the data by graphical user interface after data analysis.(2) The information collection and transmission subsystem for breeding farm is designed. We use CC2530 as the core chip of ZigBee. The environment data collection node, water consumption collection node, electricity consumption collection node, the amount of the feed consumption collection node, router and coordinator are designed to realize sensor data collection and transmission. Combining with task processing mechanism of the Z-Stack, the collection nodes collect the sensor data periodically through triggering sensor collected events regularly by the timer, and they transmit the data to the coordinator through the structured sensor data frame.(3) The information of breeding farm is processed. On the basis of the multiple infrared distance sensors and the actual size of the feed tank, the volume of the feed consumption is obtained by the volume calculation. The density of the feed is calculated by means of three dimensional fitting method. Eventually, the weight of the feed consumption is obtained. According to the collected temperature, humidity, wind speed and the NH3 concentration of the livestock house, the environmental comfort degree is evaluated by BP neural network for multi-sensor information fusion. Through the sample simulation and generalization verification, the model can relative accurately calculate the environmental comfort degree for livestock house.(4) The information monitoring subsystem for breeding farm is designed. The subsystem that is based on Delphi and SQL Server 2005 is developed. The functions such as display of sensor data, alarm setting, inquiry of historical data, data analysis and data storage are provided for the staff by graphical user interface.(5) The system functions are tested and debugged. Under the actual conditions of breeding farm, sensor data collection, Wireless network transmission, feed consumption collection by infrared distance sensor and evaluation of environmental comfortable degree are tested.Practical application results show:the system can monitor temperature, humidity, wind speed, concentration of NH3, water consumption, electricity consumption and feed consumption timely and accurately for the breeding farm livestock, and it effectively improves the monitoring and management efficiency of the breeding farm for the staff. The system also has great expansibility, because of the relative flexible farm field information transmission protocol and the characteristics of ZigBee ad hoc networks. The evaluation of comfort degree of breeding farm provides the basis for the optimal growth environment control, and it helps to improve the level of automation level of breeding farm. The system is stable in operation and has a certain value of extension and application.