UWB radio transmitter device comprising a sensor for sensing a state of a physical property for the transmission thereof

1 . An ultra wide band (UWB) radio transmitter device comprising a UWB radio transmission module and an ultra high frequency (UHF) radio reception module for collecting signals for electrically supplying the UWB radio transmission module, wherein said UWB radio transmitter device comprises a state sensor of a physical property of an element of said sensor, a change of a state of said physical property of the element resulting in a modification of an electrical state of an electrical interface of said sensor, a transmission of a UWB signal comprising the transmission of a data corresponding to the electrical state of the electrical interface, said electrical state corresponding to the state of the physical property of the element of the sensor.

2 . The UWB radio transmitter device according to claim 1 , wherein the change in the state of the physical property passively affects an electrical conductivity of a physical region of the sensor, said physical region forming an electrical interface of said UWB radio transmitter device and being connected to reading inputs of an electronic chip of the UWB radio transmitter device, the transmission of a UWB signal comprising the reading of the electrical state of said electrical interfaces and the transmission of a data corresponding to said electrical state.

3 . The UWB radio transmitter device according to claim 2 , wherein the change in conductivity of a zone of said sensor corresponds to a change in a voltage, in an impedance of said zone.

4 . The UWB radio transmitter device according to claim 1 , wherein the transmission is performed from the energy collected by the UHF radio reception module.

5 . The UWB radio transmitter device according to claim 1 , wherein the transmitted data further comprises an identifier stored in a memory of the UWB radio transmitter device and a data characterizing the type of sensor.

6 . The UWB radio transmitter device according to claim 1 , wherein the change in the state of physical property relates to a change in a chemical property of a material, a change in a conductivity of a zone of said sensor, a change in a mechanical state of a zone of said sensor.

7 . The UWB radio transmitter device according to claim 1 , wherein the sensor is made removable from the UWB radio transmitter device.

8 . The UWB radio transmitter device according to claim 1 , wherein when sufficient energy is collected by the UHF radio reception module, the UWB radio transmission module automatically reads the state of the physical property of the element of the sensor and automatically transmits a UWB message comprising said data.

9 . The UWB radio transmitter device according to claim 1 , wherein the sensor is a sensor among the following set of sensors:

an impact sensor comprising an accelerometer;

a tread;

a mechanical indicator of a seal;

a container of a chemical reagent;

a sensor comprising a hot melt material;

a pressure sensor;

a humidity sensor comprising a pellet a conductivity of which is modified when the humidity of said pellet exceeds a threshold;

a usage counter;

a pull-off detector.

10 . The UWB radio transmitter device according to claim 1 , wherein said UWB transmitter device comprises a support, the support comprising electrically conductive regions and a heat-sensitive element, a thermal printing of said element modifying the electrical conductivity of a plurality of physical regions of said support, said physical regions of the support forming a set of electrical interfaces connected to reading inputs of an electronic chip of said UWB transmitter device, an emission of a UWB signal being performed successively to the reading of the electrical state of said electrical interfaces and encoding of data corresponding to said electrical state read by the chip, said transmitted signal comprising said encoded data.

11 . The UWB radio transmitter device according to claim 10 , wherein the support comprises two layers separated by the heat-sensitive element, the thermal printing activating electrical conduction between the two layers.

12 . The UWB radio transmitter device according to claim 10 , wherein the transmitted UWB signal encodes an identifier of the transmitter device and a second identifier thermally printed on the support.

13 . The UWB radio transmitter device according to claim 1 , comprising a radio reception module for collecting signals for electrically supplying the transmission module, characterized in that said UWB radio transmitter device comprises a support comprising electrically conductive regions and a plurality of zones intended to receive an ink, depositing an ink in at least one of said zones modifying the electrical conductivity of a plurality of physical regions of said support, said physical regions of the support forming a set of electrical interfaces connected to reading inputs of an electronic chip of said transmitter device, transmission of the UWB signal being carried out successively by reading the electrical state of said electrical interfaces and encoding data corresponding to said electrical state read by the chip, said transmitted signal comprising said encoded data.

14 . The UWB radio transmitter device according to claim 13 , wherein at least one of the plurality of zones is disposed between two conducting elements, for example two electrical lugs.

15 . The UWB radio transmitter device according to claim 13 , wherein the UWB signal encodes an identifier of the transmitter device and data having a the value depending on an ink deposition configuration in the plurality of zones.

16 . The UWB radio transmitter device according to claim 13 , wherein a conductive matrix is printed on the support in such a way that depositing the ink on the matrix printing an electrical state of the set of electrical interfaces.