Title:
可視光通信システムおよび可視光通信方法
Document Type and Number:
Japanese Patent JP6789162
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable large capacity visible light communications when a terminal device which receives visible light data is a movable body.SOLUTION: A visible light communication system comprises a server device, a plurality of visible light transmitters and a radio receiver. The server device comprises: a storage part which stores information for identifying a visible light receiver of a movable body, information for identifying transmitted division data, and information for identifying a visible light transmitter in a state in which they are associated with each other; a distribution part which distributes division data to the plurality of visible light transmitters; a receiving part which receives, from the radio receiver, the success or failure of transmission to the visible light receiver for each division data distributed from the distribution part; and a division data preparation processing part. If the transmission has succeed, the division data preparation processing part makes the storage part store information of the second visible light transmitter which transmits subsequent second division data. If the transmission has failed, the division data preparation processing part makes the storage part store the information of the second visible light transmitter to transmit to the receiver again.SELECTED DRAWING: Figure 1
Inventors:
Masami Oshimi
Tetsuya Takahashi
Tetsuya Takahashi
Application Number:
JP2017062602A
Publication Date:
November 25, 2020
Filing Date:
March 28, 2017
Export Citation:
Assignee:
Hitachi Information & Communication Engineering Co., Ltd.
International Classes:
H04B10/116; H04B10/27; H04L1/16; H04L12/28
Domestic Patent References:
| JP2003152627A | ||||
| JP2013219814A | ||||
| JP2016126355A |
Foreign References:
| US20170353350 |
Attorney, Agent or Firm:
Shoyo domestic and overseas patent office