Belt and system for acquiring belt state information
A belt includes a laminate including a back surface layer disposed on a back surface side and a tension member layer including a tension member. The belt includes a sensor provided in the laminate and configured to detect a state of the belt, and a passive RFID also provided in the laminate, including an IC chip and an antenna, and configured to transmit state information on the belt detected by the sensor to an outside.
1. A belt comprising:
a laminate comprising a back surface layer disposed on a back surface side and a tension member layer including a tension member;
a sensor provided in the laminate and configured to detect a state of the belt; and
a passive RFID also provided in the laminate, comprising an IC chip and an antenna, and configured to transmit state information on the belt detected by the sensor externally,
wherein the sensor and the passive RFID are directly embedded in and contact the laminate and the sensor is chemically or physically bonded to the laminate,
the RFID is disposed in the back surface side of the laminate relative to the tension member, and
the antenna is made of a conductive linear material having PTFE powder carried on a surface thereof.
2. The belt according to claim 1 , wherein the tension member is a cord,
the laminate comprises the back surface layer, an inner surface layer disposed on an inner surface side, and the tension member layer which is a cord layer including the cord embedded between the back surface layer and the inner surface layer, and
the belt is a power transmission belt.
3. The belt according to claim 1 , wherein the sensor and the RFID are disposed in the same layer of the laminate.
4. The belt according to claim 1 , wherein the antenna is made of a conductive linear material having a meander line shape.
5. The belt according to claim 1 , wherein the RFID further comprises a connection conductive wire connecting the IC chip and the antenna,
the IC chip and the antenna are disposed along a predetermined direction, and
the antenna is a dipole antenna made of one conductive linear material and extending from a connection portion connected to the connection conductive wire of the antenna to one side and the other side in a direction orthogonal to the predetermined direction.
6. The belt according to claim 1 , wherein the RFID further comprises a base,
the IC chip is provided in the base,
the RFID is provided in the back surface layer or an inner surface layer of the laminate, and
a material of the base is the same as a material of a layer of the laminate in which the RFID is provided.
7. The belt according to claim 1 , wherein the RFID is a sensor-integrated RFID provided with the sensor.
8. The belt according to claim 1 , wherein the belt comprises a plurality of the sensors and a plurality of the RFIDs, and
each of the sensors is connected to at least one of the RFIDs.
9. A system for acquiring belt state information, the system comprising:
a belt comprising a laminate comprising a back surface layer disposed on a back surface side and a tension member layer including a tension member, a sensor provided in the laminate and configured to detect a state of the belt, and a passive RFID also provided in the laminate and configured to transmit state information on the belt detected by the sensor externally, wherein the sensor and the passive RFID are directly embedded in and contact the laminate and the sensor is chemically or physically bonded to the laminate and the RFID comprises an IC chip and an antenna made of a conductive linear material having PTFE powder carried on a surface thereof; and
a reader configured to receive a signal from the RFID,
wherein the RFID operates by an electromagnetic wave transmitted from the reader and transmits the state information on the belt to the reader, and
the RFID is disposed in the back surface side of the laminate relative to the tension member.
10. The system for acquiring belt state information according to claim 9 , wherein the tension member is a cord,
the laminate comprises the back surface layer, an inner surface layer disposed on an inner surface side, and the tension member layer which is a cord layer including the cord embedded between the back surface layer and the inner surface layer, and
the belt is a power transmission belt.