Title:
TIRE STATE MONITORING DEVICE
Document Type and Number:
Japanese Patent JP2003175711
Kind Code:
A
Abstract:
To provide a tire state monitoring device capable of specifying which tire state data indicates, even if an installing position of a tire is changed.
This tire state monitoring device judges from which tire of tires 21 to 24 received data is sent, by comparing a change pattern of voltage induced in a receiving antenna 41 by a radio wave from each sending machine 30, and voltage pattern data 61 to 64 memorized in advance. If an installing position of a tire is changed, the monitoring device can easily specify which tire 21 to 24 state the received data indicate. Especially, if the air pressure of the tire 21 to 24 is abnormal, the tire 21 to 24 having the abnormal air pressure is specified and indicated in an indicator 50 for warning.
Inventors:
SAWAFUJI KAZUNORI
Application Number:
JP2001378144A
Publication Date:
June 24, 2003
Filing Date:
December 12, 2001
Export Citation:
Assignee:
TAIHEIYO KOGYO KK
International Classes:
G08C17/02; B60C23/02; B60C23/04; (IPC1-7): B60C23/04; G08C17/02
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)