| 摘要 |
PROBLEM TO BE SOLVED: To provide a crime preventing system for cage culture having a high detecting ability for theft and poaching in the cage culture and capable of finding the theft and poaching in the early stage in place of a monitoring system by humans. SOLUTION: This crime preventing system for the cage culture is composed of a weight detecting part 1 for detecting that a culturing cage 21 is cut from a buoy, a depth detecting part 2 for detecting that the depth of the culturing cage 21 is changed, a detected signal receiving part 3 for receiving detected signals from the weight detecting part 1 and the depth detecting part 2, a radio transmitting part 4 for transmitting the detected signals received with the detected signal receiving part 3 by radio, a radio receiving part 5 for receiving the radio signals from the radio transmitting part 4, a radar detecting part 8 for radiating electric waves and detecting ships with reflected electric waves from an object and an alarm issuing part 9 for issuing an alarm with the detected signals from the radio receiving part 5 and the radar detecting part 8. Thereby, theft, etc., of the culturing cage 21 are prevented.
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