| 摘要 |
A method for monitoring various physical conditions of pneumatic tires and to a tire which includes a memory device mounted on the interior of the tire wit hin the pressurizable cavity and a separate monitoring device mounted on the tire ri m. The memory device contains a battery, an antenna and stored data pertaining to t he tire. The monitoring device uses an active self-powered programmable electronic circuitry which obtains data from the memory device and in addition contains one or more sensors which obtains engineering conditions such as temperature, pressure, tire rotation and/or other operated conditions of the pneumatic tire a long with the stored information from the memory device. The memory device can be actuated by externally transmitted radio frequency waves from a remote location or by signals from the monitoring device, and the monitoring device can transmit th e information to the remote location by a separate, larger and more powerful batte ry which is mounted on the tire rim than the battery in the memory device.
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