Design Of Automatic System To Detect Cow Oestrus

The profit of dairy cow breeding enterprise closely related with annual milk production, and the annual milk production depends on the length of lactation. So,it is important to make dairy cow pregnant in a timely. For dairy cow pregnancy in a timely, we must find dairy cow’s estrus Accurately. In china, most dairy farms still use the traditional method to detect cow oestrus, which depends on man’s observation or the breeder’s experience.This way not only waste time and energy, high labor intensity, low productivity for large dairy farms, but also exetremely easy to miss the cow’s estrus for lose detection or wrong judgement. All of the above may lead to miss the best breeding time, unfavorable to improve the rate of reproduction and milk production. It is obvious that the decting method can directly cause the loss of economy.Now there are many kinds of Problems in cow breeding. The Problem that the Detection of cow oestrus is difficult in detecting is one of all the Problems. The detection of cow oestrus is an important link,which can effect on dairy cattle calving interval If the detection is done badly, which would inerease the cost of feeding, decrease reproduetive rate and reduce the economic benefit. The most user of cow feeding still detects cow oestrus by use of the traditional method,which depends on the man’s observation and it is obvious that the detecting method is hard to operator and the effieiency is low. So the users are often meet with the miss of detection or the wrong result of detection. It can directly cause the loss of economy. To promote the healthy development of cow breeding and advance the economic benefit,this paper Present that build a system for detecting the signs of dairy cattle on the base of reading a great deal of literature and datum and a study of Practical requirement The design refers the mature technology abroad. This paper puts forward the scheme that cow signs can be detected by collecting the cow ,body temperature and the amount of daily life activity,which makes out preliminary discussion in the future. This paper designs and builds the system. The system is composed of lower computer center computer and host computer. Sensors detect the cow’s physiological Parameters of body temperature and activity. The system communication adopts the radio frequency communication technology and wire communication.On the base of low cost、low Power and high reliability,MSP430 that is one new type Micro controller with ultra-low Power consumption is used for the core of acquisition device.MSP430 can greatly reduce the Power consumption of the system. The advanced sensor、simple circuit and less occupancy of input and output Port make system more easy in wiring and reliable of hardware.The soft design of lower computer uses C. language.C language is a structured programming language.It is compatible to various characters of high- level Programming language and has the function of assembly language.The software is written in C language,which greatly shorten the development cycle and improve the readability of lower computer software.Then the system is easy to be improved and extended in order to develop the superior performances. by using modern computer’technology、electronic technology and wireless communication technology,this design apply the modern science technology to dairy cow breeding, which adapt the requirement of development at home.The system monitors single body status of cow. This system can be used not only for cow,but also other animals or aspects by certain modification. So this system has good Practical value and applied prospect.