Tire system
A tire system is configured to enable a general-purpose communication device to establish data communication with a tire-side device, thereby enabling transmission of data indicating a tire-related condition from the tire-side device to the general-purpose communication device. The general-purpose communication device acquires the tire-related condition, and reports the tire-related condition to the user via a notification unit. Based on the above, it is possible to report the tire-related condition via the general-purpose communication device based on the communication between the general-purpose communication device and the tire-side device.
1. A tire system comprising:
a tire-side device provided in each of plural tires of a vehicle; and
a general-purpose communication device used as a device provided separately from the tire of the vehicle and provided with a function of performing a notification of a tire-related condition by installing a program for determining a road surface condition and detecting a tire air pressure, wherein:
the tire-side device includes a sensing unit for outputting a detection signal corresponding to the tire-related condition, a signal processing unit for processing the detection signal of the sensing unit and generating data indicating the tire-related condition, and a first data communication unit for performing data communication with the general-purpose communication device and transmitting the data indicating the tire-related condition generated by the signal processing unit; and
the general-purpose communication device includes a second data communication unit for performing communication with the tire-side device and receiving the data indicating the tire-related condition, a control unit for acquiring the tire-related condition based on the data indicating the tire-related condition, and a notification unit for performing notification of the tire-related condition acquired by the control unit, wherein:
the sensing unit includes a vibration sensor unit for outputting a detection signal corresponding to a vibration of the tire as the detection signal corresponding to the tire-related condition;
the signal processing unit generates road surface data indicating a road surface condition, which appears in a waveform of the detection signal corresponding to the vibration of the tire as the data indicating the tire-related condition;
the control unit determines the road surface condition of a road surface of the vehicle travel as the tire-related condition
the general-purpose communication device includes a third data communication unit;
the control unit performs data communication with a data server through the third data communication unit;
the data server includes a fourth data communication unit for performing data communication with the third data communication unit, an information storage unit for storing information including tire information of each tire ID as individual identification information of the tire and a support vector for each tire ID, and a software storage unit for storing software that is used to determine the road surface condition of a road surface of the vehicle travel based on the road surface data; and
the control unit downloads the software stored in the software storage unit and the information corresponding to the tire ID of the tire, to which the tire-side device is provided, among the information stored in the information storage unit, and determines the road surface condition of the road surface of the vehicle travel as the tire-related condition based on the tire information and the support vector corresponding to the tire ID of the tire and the software that is downloaded from the data server.
2. The tire system according to claim 1 , wherein:
the sensing unit includes an air pressure sensor unit for outputting a detection signal corresponding to a tire air pressure as the detection signal corresponding to the tire-related condition;
the signal processing unit generates data related to the tire air pressure based on the detection signal corresponding to the tire air pressure as the data indicating the tire-related condition; and
the control unit calculates the tire air pressure or detects a tire air pressure decrease as the tire-related condition based on the data related to the tire air pressure.