Tire pressure monitoring system telegram with suppressed ID
First Claim
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1. A tire pressure monitoring system (TPMS) receiver comprising:
- a storage unit configured to store transmitter identification values (IDs) associated with a plurality of tire pressure monitoring system (TPMS) transmitters, wherein each stored transmitter ID is associated with a respective TPMS transmitter;
a receiving unit configured to receive a transmitted tire pressure monitoring system (TPMS) telegram and a transmitted checksum calculated from the telegram and one of the transmitter IDs;
a calculating unit configured to calculate, on receipt of the telegram, a test checksum from the received telegram and one of the stored IDs;
a comparing unit configured to compare the test checksum with the received checksum; and
an identification unit configured to identify a source transmitter via a stored transmitter ID used to calculate the test checksum, in response to the comparing unit finding a match between the test checksum and the received checksum.
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Abstract
A tire pressure monitoring system receiver includes a storage unit to store transmitter IDs associated with a plurality tire pressure monitoring system transmitters, a receiving unit to receive a transmitted tire pressure monitoring system telegram and a transmitted checksum, a calculating unit to calculate a test checksum from the received telegram and one of the stored IDs, a comparing unit to compare the test checksum with the transmitted checksum, and an identification unit to identify a source transmitter from the test checksum in response to finding a match between the test checksum and the transmitted checksum.
13 Citations
16 Claims
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1. A tire pressure monitoring system (TPMS) receiver comprising:
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a storage unit configured to store transmitter identification values (IDs) associated with a plurality of tire pressure monitoring system (TPMS) transmitters, wherein each stored transmitter ID is associated with a respective TPMS transmitter; a receiving unit configured to receive a transmitted tire pressure monitoring system (TPMS) telegram and a transmitted checksum calculated from the telegram and one of the transmitter IDs; a calculating unit configured to calculate, on receipt of the telegram, a test checksum from the received telegram and one of the stored IDs; a comparing unit configured to compare the test checksum with the received checksum; and an identification unit configured to identify a source transmitter via a stored transmitter ID used to calculate the test checksum, in response to the comparing unit finding a match between the test checksum and the received checksum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of identifying which transmitter from a plurality of transmitters in a tire pressure monitoring system (TPMS) is a source transmitter of a TMPS telegram, the method comprising:
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calculating a checksum from the TPMS telegram and a transmitter identification value (ID); transmitting the TPMS telegram to a receiver; transmitting the calculated checksum to the receiver; calculating a test checksum from the transmitted TPMS telegram and a stored transmitter ID associated with one of the plurality of transmitters; comparing the test checksum with the transmitted checksum; and identifying the source transmitter via the stored transmitter ID used to calculate the test checksum in response to finding a match during the comparison between the test checksum and the transmitted checksum. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification