| 摘要 |
PROBLEM TO BE SOLVED: To obtain a collar device, for cattle, by which the cattle does not feel a sense of incongruity even when the collar device is attached to the cattle for many hours and by which a GPS antenna is directed always upward. SOLUTION: A U-shaped cushion material 14 which is formed so as to match the cross-sectional shape of the neck of cattle is attached to a V-shaped aluminum plate 13 whose vertex is formed be flat and whose lower slopes are tilted according to the neck width of the cattle, and the surface of the V-shaped aluminum plate 13 is covered with a leather bag 16. Then, a GPS receiver 25 is housed in the leather bag 16 which is situated in the flat vertex of the aluminum plate 13, and a radio device 23 and a position-data generation circuit part 24 are housed in the leather bag in positions of slope plates at the plate 13. |
