A transmitter is configured to be attached to a tire valve and transmit a data signal to a receiver. The transmitter includes a trigger receiving unit configured to receive a trigger signal transmitted from an ID registration device, the trigger signal containing a command to the transmitter, a specification storage unit configured to store multiple types of specifications, an ID storing unit configured such that an ID code contained in the trigger signal received by the trigger receiving unit is written into the ID storing unit, a linking information storing unit configured to store linking information that links each of the specifications and ID codes to each other, and a controlling unit configured to cause, based on the linking information, the transmitter to operate in accordance with the specification, which is linked to the ID code stored in the ID storing unit.

Embodiments of the present invention relate to the technical field of automobiles and disclose a tire positioning method and apparatus, an electronic control unit (ECU) and a tire pressure sensor. The method includes: successively controlling, within a transmission cycle, one of L exciter sets to send a low-frequency signal, L being an integer greater than 1; receiving high-frequency signals fed back by N tire pressure sensors according to the low-frequency signals, N being an integer greater than 1; determining a correspondence between one of the L exciter sets and M tire pressure sensors according to the high-frequency signals, M being an integer greater than 1; and after a quantity of transmission cycles reaches a preset threshold, determining a tire corresponding to each of the N tire pressure sensors according to the correspondence between the exciter set and the M tire pressure sensors determined in each transmission cycle. The tire positioning method is accurate and reliable.

Methods and apparatus for determining whether a vehicle tyre pressure check has been carried out, comprising: receiving from a pressure reader module a request for tyre pressure data indicative of a the pressure of a gas retained within a pneumatic tyre; storing, by a pressure check register, data indicating that the request for tyre pressure data was received; transmitting, by a transmitter to an apparatus, an indication confirming whether a tyre pressure check has been carried out based on whether the request for tyre pressure data was received; receiving, at the apparatus from a plurality of tyre pressure sensing modules, a plurality of indications of whether a tyre pressure reader has been used on each of the plurality of tyre pressure sensing modules to check a corresponding tyre pressure; and determining, by a pressure check confirmer, whether a vehicle tyre pressure check has been carried out based on the received plurality of indications.

The present invention provides a method and an apparatus for activating a tire pressure sensor, a storage medium and a front-end server. The method includes: obtaining a first identification number of the tire pressure sensor; determining a parameter of an activation signal according to the first identification number, the activation signal being used to activate the tire pressure sensor; and sending the activation signal to the tire pressure sensor according to the parameter. According to the method and the apparatus for activating a tire pressure sensor activation provided in the present invention, the first identification number in a one-to-one correspondence with a model of the tire pressure sensor is obtained, the parameter of the activation signal for activating the tire pressure sensor is determined using the first identification number, and the activation signal is sent according to the determined parameter to activate the tire pressure sensor, so that a plurality of automobile-related parameters do not need to be determined in advance during activation of the tire pressure sensor, thereby improving a success rate of activating the tire pressure sensor.

A method for detecting a change in location of the wheels of a motor vehicle, the vehicle having at least one central processing unit, and two wheel units which each includes an electronic assembly of sensors and which are each mounted on one of the wheels. The method including a monitoring step, during which a first pattern representative of the location of the wheel unit is established, when the vehicle is at a standstill, and an evaluation step, during which a possible first variation in each first pattern is measured to estimate if the location of the wheel has changed.

A receiver receives frames transmitted by transmitters respectively attached to wheel assemblies. Each transmitter transmits three or more frames successively at different transmission intervals when a rotation angle of the associated wheel assembly agrees with a specific angle. When receiving the frames, the receiver determines the transmission ordinal numbers of the received ones of the frames from a previously stored correspondence relationship between an order of transmission and transmission intervals of the frames. The receiver derives, from the determined order of transmission of the frames, a specific point in time that is within specified time from the detection of the specific angle. Based on the rotation angle of the wheel obtained by a rotation angle detecting unit at the specific point in time, the receiver identifies the wheel assembly to which each of the transmitters is attached.

Embodiments included herein are directed towards an automatic tire inflation monitoring system and method. The method may include confirming, using a battery powered electronic sensor, that there is no active tire re-inflation in progress. The method may further include monitoring, using the battery powered electronic sensor, the status of all tire pressures over a period of time and determining, using the battery powered electronic sensor, whether a rate of tire pressure reduction exceeds a first value. The method may include reporting, using the battery powered electronic sensor, a fault if the rate exceeds the first value.

A method for adjusting a periodicity of communication between a wheel unit and a remote monitoring and/or control device, a communication being carried out using ultra-high-frequency radio waves, the wheel unit sending with a predetermined first periodicity basic signaling messages indicating its presence to any communication device located in an environment of the wheel unit. The wheel unit, having previously stored a group of communication devices authorized to serve as monitoring devices therefor, checks whether the communication device having sent a response message belongs to the group, and, if this is the case, the wheel unit replaces the first periodicity with at least one shorter second periodicity resulting in a more intense two-way exchange for any signaling message subsequently sent from the wheel unit to the authorized device.

Methods, system, apparatuses, and computer program products for securely pairing a vehicle-mounted wireless sensor with a central device are disclosed. In a particular embodiment, securely pairing a vehicle-mounted wireless sensor with a central device in accordance with the present disclosure includes a vehicle sensor device pairing with a vehicle control system (VCS) using a pre-shared passkey. The pre-shared passkey is shared between the vehicle sensor device and the VCS via an out-of-band exchange. This embodiment also includes the vehicle sensor device transmitting an identifier for a resolvable private address (RPA) to the VCS. In addition, the vehicle sensor device communicates with the VCS using the RPA. In this example embodiment, the RPA is periodically regenerated by the vehicle sensor device.

A method for reconfiguring a device for monitoring a tire, incorporating a pressure sensor and a communication module. The device may receive and store configuration data intrinsic to the tire. Based on pressure measurements and the configuration data, the device generates and stores advanced data relating to use of the tire over time. Following reception of new configuration data, the method includes: detecting a tire change based on the previously stored configuration data and the newly received configuration data, if a tire change is detected: erasing the advanced data from the memory means of the device, if not, retaining the advanced data in the memory of the device.