| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device monitoring system capable of assuring portability and confidentiality of an electronic device when the electronic device is arranged indoors for the confidentiality and the operation of the electronic device is monitored.SOLUTION: Optical space transmission means (a light sending unit 10 and a light receiving unit 20): converts a monitoring signal ds output by a monitoring target device 1 to a plurality of visible radiations dp in different colors in response to types of information included in the monitoring signal ds; transmits the converted visible radiations dp to a space indoors; receives each of the transmitted visible radiations dp; converts each of the transmitted visible radiations dp to a light reception output signal ps; and outputs the light reception output signal ps. Then a monitoring device 30 monitors the operation of the monitoring target device 1 on the basis of the light detection output signal ps output by the optical space transmission means. The light sending unit 10 is externally mounted on the monitoring target device 1. |
