Abstract: Methods and systems for detecting a leak in a compressed natural gas (CNG) delivery system of a vehicle are disclosed. According to some embodiments the method includes determining a first amount of CNG in a CNG tank of the vehicle, the first amount corresponding to a first time, and determining a second amount of CNG in the CNG tank at a second time, the second time being subsequent to the first time. The method further includes determining an expected CNG consumption of the vehicle during a period of time, the period of time beginning at the first time and ending at the second time. The method also includes determining an actual CNG consumption during the period of time based on the first amount of CNG and the second amount of CNG, and comparing the actual CNG consumption and the expected CNG consumption to determine whether a leak has occurred.

Abstract: Methods and systems for detecting a leak in a compressed natural gas (CNG) delivery system of a vehicle are disclosed. According to some embodiments the method includes determining a first amount of CNG in a CNG tank of the vehicle, the first amount corresponding to a first time, and determining a second amount of CNG in the CNG tank at a second time, the second time being subsequent to the first time. The method further includes determining an expected CNG consumption of the vehicle during a period of time, the period of time beginning at the first time and ending at the second time. The method also includes determining an actual CNG consumption during the period of time based on the first amount of CNG and the second amount of CNG, and comparing the actual CNG consumption and the expected CNG consumption to determine whether a leak has occurred.

Abstract: A system for distinguishing between a first condition corresponding to a living subject being directly in contact with an object of interest, and a second condition corresponding to the absence of contact between the living subject and the object of interest. A transducer, which may be a MEMs sensor, is disposed in predetermined relationship to the object of interest and produces a transducer signal responsive to a pressure wave resulting from the living subject being directly in contact the object of interest. A database stores data corresponding to the first condition and may contain additional data corresponding to the second condition. A processor calculates an algorithm of a non-linear short-term frequency-selective energy distribution of the transducer signal over time to produce transducer signal data.

Abstract: The present invention relates to an apparatus for remote tire pressure monitoring that is secured onto a wheel surface. The apparatus as a unit comprises or includes a circuit including at least a sensor element to sense air pressure, signal processing circuitry, and data transmitting circuitry and an antenna. The apparatus also comprises or includes a housing at least partially contains the circuit. The housing retains the circuit and the housing and is itself engaged to the wheel surface by adhesion.

Abstract: A system for distinguishing between a first condition corresponding to a living subject being directly in contact with an object of interest, and a second condition corresponding to the absence of contact between the living subject and the object of interest. A transducer, which may be a MEMs sensor, is disposed in predetermined relationship to the object of interest and produces a transducer signal responsive to a pressure wave resulting from the living subject being directly in contact the object of interest. A database stores data corresponding to the first condition and may contain additional data corresponding to the second condition. A processor calculates an algorithm of a non-linear short-term frequency-selective energy distribution of the transducer signal over time to produce transducer signal data.

Abstract: The present invention relates to an apparatus for remote tyre pressure monitoring that is secured onto a wheel surface. The apparatus as a unit comprises or includes a circuit including at least a sensor element to sense air pressure, signal processing circuitry, and data transmitting circuitry and an antenna. The apparatus also comprises or includes a housing at least partially contains the circuit. The housing retains the circuit and the housing and is itself engaged to the wheel surface by adhesive means.

Abstract: The present invention relates to an apparatus for remote tyre pressure monitoring that is secured onto a wheel surface. The apparatus as a unit comprises or includes a circuit including at least a sensor element to sense air pressure, signal processing circuitry, and data transmitting circuitry and an antenna. The apparatus also comprises or includes a housing at least partially contains the circuit. The housing retains the circuit and the housing and is itself engaged to the wheel surface by adhesive means.