Title:
放送制御システム及び放送制御方法
Document Type and Number:
Japanese Patent JP6844015
Kind Code:
B2
Abstract:
The present invention enables public addresses to be made within a train at an appropriate sound volume. A data storage unit 7 associatively stores noise information indicating a noise volume measured in the past while a train is traveling and vehicle information that includes positional information indicating the measured position thereof. A vehicle management unit 1 acquires the current position of the train, and transmits vehicle information that includes the positional information. A sound volume calculation unit 8 identifies the current position acquired by the vehicle management unit 1 on the basis of the vehicle information distributed via a noise sensor 4, and calculates the sound volume of a public address to be made in the train on the basis of the noise information stored in the data storage unit 7 in association with vehicle information that includes positional information within a segment following the current position.
Inventors:
Ryota Totsuka
Application Number:
JP2019542908A
Publication Date:
March 17, 2021
Filing Date:
September 22, 2017
Export Citation:
Assignee:
Hitachi Kokusai Electric Co., Ltd.
International Classes:
H04R27/00; B61D49/00; G10K11/178; H04R3/00
Domestic Patent References:
| JP2008153743A | ||||
| JP2013062609A | ||||
| JP2016007868A | ||||
| JP2004216971A | ||||
| JP11020697A | ||||
| JP4248709A |
Attorney, Agent or Firm:
Tamura
Junko Sugimura
Fujimatsu Masao
Junko Sugimura
Fujimatsu Masao