Title:
列車接近警報装置
Document Type and Number:
Japanese Patent JP7260945
Kind Code:
B2
Abstract:
To provide a train approach warning device provided with a bone conduction speaker which has a secured safety and mitigates an influence of battery exhaustion when a cable less coupling between a body part and a headset part is adopted.SOLUTION: A wireless communication is held between a transmission and reception part 66 of a body part 60 and a transmission and reception part 71 of a headset part 70. When a signal reception part 33 of the body part 60 receives a train approach signal, a bone conduction speaker 41 of the head set 70 is made to discharge train approach warning sound, when the reception part receives a normal state confirmation signal, a normal state confirmation sound is discharged from the bone conduction speaker 41 and when any of these signals are not received, the bone conduction speaker 41 is made to discharge an abnormality notification sound and a light emitting part 74 of the headset part 70 is made to flash. When a battery of the body part 60 is exhausted, the light emitting part 74 is also made to flash.SELECTED DRAWING: Figure 1
Inventors:
Saito Hitoshi
Application Number:
JP2019117341A
Publication Date:
April 19, 2023
Filing Date:
June 25, 2019
Export Citation:
Assignee:
Daido Signal Co., Ltd.
International Classes:
B61L23/06
Domestic Patent References:
| JP3187252U | ||||
| JP2000052990A | ||||
| JP2015504252A |
Attorney, Agent or Firm:
Satou Kaori
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