Tire pressure sensor and use of a tire pressure sensor

A tire pressure sensor, wherein the tire pressure sensor comprises:

• a pressure sensor element;
• a position and/or acceleration sensor;
• a radio communication interface which is designed as a Bluetooth low-energy interface (BLE interface);
• a microcontroller that is coupled to the pressure sensor element and the radio communication interface and that can be switched between a mode with reduced energy consumption and an active operating mode;
• and
• a battery for voltage supply,
• wherein the radio communication interface is designed to establish a radio communication with a reader designed for radio communication and to initiate a switch-over of the microcontroller from its mode with reduced energy consumption to its active operating mode on the basis of the BLE communication being established in addition to a change in the position and/or acceleration of the position and/or acceleration sensor,
• wherein an identification code of the reader is queried, and the microcontroller is switched over to the active operating mode only in the event that the identification code corresponds to an expected identification code.

Method for reading data from a tire pressure sensor, comprising:

• providing a tire pressure sensor including a pressure sensor element;
• a position and/or acceleration sensor;
• a radio communication interface which is designed as a Bluetooth low-energy interface (BLE interface);
• a microcontroller that is coupled to the pressure sensor element and the radio communication interface and that can be switched between a mode with reduced energy consumption and an active operating mode;
• and
• a battery for voltage supply,
• wherein the radio communication interface is designed to establish a radio communication with a reader designed for radio communication and to initiate a switch-over of the microcontroller from its mode with reduced energy consumption to its active operating mode on the basis of a change in the position and/or acceleration of the position and/or acceleration sensor, wherein
• the radio communication interface designed as a BLE interface repeatedly transmits measured values or tire parameters derived from measured values with an advertise package in an advertising state of the tire pressure sensor, wherein a period between a first transmission and a repeated and updated transmission is selected on the basis of a driving status, particularly a detected minimum acceleration, of the tire, in which the tire pressure sensor is arranged, and wherein
• the transmitted data are received by a reader designed for BLE communication, wherein an identification code of the reader is queried, and the microcontroller is switched over to the active operating mode only in the event that the identification code corresponds to an expected identification code.

Use of a tire pressure sensor for transmitting a tire pressure of a stationary trailer to a portable reader or to a reader carried along in a towing vehicle,

• wherein the tire pressure sensor comprises:
• a pressure sensor element;
• a radio communication interface which is designed as a Bluetooth low-energy interface (BLE interface);
• a microcontroller that is coupled to the pressure sensor element and the radio communication interface and that can be switched between a mode with reduced energy consumption and an active operating mode;
• and
• a battery or an energy generator for voltage supply,
• wherein the radio communication interface is designed to establish a radio communication with a reader designed for radio communication and to initiate a switch-over of the microcontroller from its mode with reduced energy consumption to its active operating mode on the basis of the radio communication being established,
• wherein the BLE interface is designed to establish a BLE communication with the reader designed for BLE communication and to initiate a switch-over of the microcontroller from its mode with reduced energy consumption to its active operating mode on the basis of the BLE communication being established,
• wherein the BLE interface comprises a memory module or is coupled to a memory module, in which identification data of at least one predetermined identifiable reader are stored, and
• wherein the BLE interface is designed to initiate the switch-over of the microcontroller to its active operating mode only after the prerequisite of the BLE communication taking place with the predetermined reader is met,
• wherein an identification code of the reader is queried, and the microcontroller is switched over to the active operating mode only in the event that the identification code corresponds to an expected identification code.