SYSTEM AND A METHOD FOR REAL TIME DETECTION OF THE POSITION AND BEHAVIOR OF A PLURALITY OF ANIMALS

摘要

The present invention relates to a system and a method for real time detection of the position and behaviour of a plurality of animals which system comprises radio transmitter tags carried by the animals, where sensors receives signal from the tags, which system based of time delay of received signals at the sensors from the tags, perform calculation the position of the animals. It is the first object of the invention to achieve real time position of animal in a limited area. The object can be fulfilled by letting the system comprise a computer bases real time position calculation of the position of the animals, which system comprises a plurality of fixed reference radio transmitter tags, which system continuously based of received signal from the reference tags performs a calibration of the measured position of the animals. By using fixed reference radio transmitters together with tags that are performing equal radio transmission functions, it is possible by fixed placed sensors to receive first signals from the animal tags, but also signals from the fixed reference radio transmitter tags to perform an automatic calibration of all received signals from animals.

主权项

1. System for real time detection of the position and behavior of a plurality of animals held in one or more limited areas, which system comprises radio receiver/transmitter tags carried by the animals, which system comprises a plurality of sensors, which sensors receives a signals from the radio receiver/transmitter tags carried by the animals, which system based of time ore phase delay of received signals at the sensors from the radio receiver/transmitter tags placed at the animal, perform calculation the position of the animals, wherein the system comprises a computer bases real time position calculation of the position of the animals which system comprises radio transmitter tags, which system comprises a plurality of fixed reference radio transmitter tags 48, which system performs a first calculation of the optimal placement of censors in the restricted area, which system further performs a second calculation of the optimal placement of the fixed reference radio transmitter tags, which sensors and fixed reference radio transmitter tags are placed in the limited area according the computer calculation of the optimal position for the sensors and fixed reference radio transmitter tags, which system continuously based of received signal from the reference radio transmitter tags performs a calibration of the measured position of the animals.