Title:
LIGHT EMISSION DEVICE, LIGHT EMISSION CONTROL METHOD, AND LIGHT EMISSION CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/069440
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a device that enables heightened security by issuing a notification, by light emission control, to persons in the area that a suspicious individual is located in the vicinity of a light emission device. In order to solve this problem, the present invention utilizes a light emission device comprising: a motion sensor that detects a person within a detection range; a communication unit that communicates with a terminal within a communication range; a light emission unit that emits visible light; and a control unit that controls the motion sensor, the communication unit, and the light emission unit. The motion sensor outputs, to the control unit, detection information indicating that a person was detected in the detection range. The communication unit acquires identification information from the terminal which is in communication range, and outputs the identification information to the control unit. The control unit calculates the number of persons in the detection range from the detection information, checks the identification information to calculate the number of checked terminals, and if the number of persons in the detection range is greater than the number of checked terminals, performs first light emission control with respect to the light emission unit.
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Inventors:
KATO ARIMICHI (JP)
Application Number:
PCT/JP2017/036414
Publication Date:
April 11, 2019
Filing Date:
October 06, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H05B37/02; F21V23/00; G08B5/36; G08B13/19
Foreign References:
| JP2017111621A | 2017-06-22 | |||
| JP2008016042A | 2008-01-24 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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