Cow herd oestrus judging method and device

The invention relates to a cow herd oestrus judging method and device. By constantly collecting the number of steps of a herd of cows and setting a first gradient value, a second gradient value and athird gradient value for comparison with a difference value, the suspected, significant and intense oestrus state can be determined, and therefore the oestrus state of the cow herd can be judged; theoestrus or disease state of the herd of cows can be effectively judged according to set oestrus and disease coefficients in accordance with actual conditions. In a manual observing mode instead of a pasture worker mode, the whole delivery period of cows is prolonged, and the disease early warning rate is increased. 本发明涉及种牛群发情揭发方法和装置，通过不断进行牛群步数的采集，以及，设定第梯度值，第二梯度值，第三梯度值与差值的比较，确定疑似、明显、强烈的发情状态，从而对牛群的发情得到揭发，根据实际情况设定的发情与疾病系数，从而有效地判断出牛群的发情或者疾病状态。不通过牧场员工通过人工观察的方式提升整体母牛的分娩周期和疾病预警率。