Systems, devices, integrated circuits, and methods are directed to on-vehicle data processing using analog hardware realization of neural networks. A vehicle obtains a temporal sequence of sensor data samples that is collected by a sensor system including a tire pressure sensor and/or a three-axis accelerometer. The sensor system is physically coupled to a tire of a vehicle. The temporal sequence of sensor data samples is converted into a plurality of first parallel data items, which is applied as a plurality of first inputs to a neural network circuit. The neural network circuit generates one or more output data items based on the plurality of first parallel data items. The one or more output data items indicate a condition of the road, the vehicle, or a component of the vehicle.

A tire pressure monitoring device with a dynamic energy-saving mechanism and an energy-saving method of tire pressure monitoring are provided. The tire pressure monitoring device is installed in a car and includes a plurality of tire pressure detectors and a main control receiver. Through the mutual transmission of signal and information between each tire pressure detector and the main control receiver, the main control receiver or each tire pressure detector can directly control and change the transmission range of each tire pressure detector. The signal range can match the distance between the tire pressure detector and the main control receiver, the closer the distance from the tire pressure detector to the main control receiver is, the smaller the signal range is.

A retread guidance system is disclosed, comprising sensors coupled to a tire for measuring temperature and pressure, and a memory storing logs for temperature, pressure, and tire events. A controller with processors detects pressure and temperature events, logs them to the respective logs, and determines retread suitability for a tire casing based on the logs and retread factors.

A method for protecting the battery of a wheel unit fitted to a wheel of a motor vehicle. The motor vehicle includes a central processing unit and the wheel unit includes at least a first sensor capable of measuring and of supplying an operating parameter of the wheel unit and a battery which supplies the wheel unit with power. The method including that the wheel unit transitions from an operational state to a non-operational state when the operating parameter reaches a predetermined upper threshold, and the wheel unit transitions from the non-operational state to the operational state when the operating parameter reaches a predetermined lower threshold.

Systems and techniques are provided for authenticating sensor data. For instance, a computing device can obtain a first line of data from a first sensor. The computing device can retrieve, from at least one memory, an intermediate hash associated with the first sensor. The computing device can determine a current intermediate hash based on sensor data in the first line of data. The computing device can store the current intermediate hash in the at least one memory for processing a second line of data associated with the first sensor.

Systems and techniques are provided for authenticating sensor data. For instance, a computing device can obtain a first line of data from a first sensor. The computing device can retrieve, from at least one memory, an intermediate hash associated with the first sensor. The computing device can determine a current intermediate hash based on sensor data in the first line of data. The computing device can store the current intermediate hash in the at least one memory for processing a second line of data associated with the first sensor.

A method for displaying a function menu interface of an automobile tyre pressure monitoring system includes: determining a candidate radio frequency communication protocol of the tyre pressure monitoring unit according to the vehicle information of an automobile; by means of the radio frequency unit simulating the candidate radio frequency communication protocol, sending a radio frequency signal to the tyre pressure monitoring unit, the radio frequency signal comprising simulation measurement data: if recorded measurement data is read out from the tyre pressure monitoring unit by means of the OBD interface, and the recorded measurement data is the same as the simulation measurement data, then determining that the candidate radio frequency communication protocol is the actual radio frequency communication protocol of the tyre pressure monitoring unit; and displaying the function menu interface of the tyre pressure monitoring system according to the actual radio frequency communication protocol.

The present invention provides an Active Tire Auto-Location systems for tire pressure monitor sensors and an operating method. The system includes a host, wheel axle rotation detection devices and tire pressure monitor sensors. By allowing the wireless tire pressure detector to receive and compare the rotation information of a toothed ring from the wheel axle rotation detection device and the tire rotation information from the wireless tire pressure detector, each wireless tire pressure detector can identify which wheel axle rotation detection device that corresponds to it. At the same time, the tire position where each wireless tire pressure detector is situated can also be determined. Compared to prior art, it is still possible for the present invention to determine the tire position where each wireless tire pressure detector is situated, without the need for additional modification to the host, thus significantly reducing the inconvenience in replacing tire pressure monitor sensors.