| 摘要 |
PROBLEM TO BE SOLVED: To provide a monitor system by which a shop clerk can easily grasp a state in a small-scale shop at all times wherever the shop clerk stays in the shop such as a convenience store where number of shop clerks is small. SOLUTION: The supervisory system is made up of a plurality of cameras 102, up of a master set 101 consisting of a camera interface circuit 103, of a master set controller 104, of a master set radio transmitter 105, of a master set antenna 106, of a recorder 107, of a master set operation button 108, and of a power supply circuit 109, and up of a slave set 110 consisting of a slave set antenna 111, of a slave set radio transmitter 112, of a monitor 113, of a monitor interface circuit 114, of a slave set controller 115, of a slave set operation button 116, of a lamp 117, a buzzer 118, of a vibrator 119, and of a battery 120.
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