Abstract: Surgical instrument tracking systems, methods and devices are described. The system can include tracking devices configured to detect location events. The tracking device can include sensors, circuits, power sources, memories, and radio interface. The tracking devices can automatically determine a location of the tracking device when the tracking device detects a location event. The tracking device can automatically transmit the location and information related to the location event to a data analytics platform. The data analytics platform can allow a user to track multiple surgical instruments and surgical instrument tray in order to accurately determine when surgical instruments should be replaced, and how efficiently the surgical instruments are used.

Abstract: It is proposed a method for determining a quantity of a liquid in a tank, the tank comprising: a first ultrasound subsystem capable of measuring level of liquid present above a predetermined threshold level within the tank; and at least one second ultrasound subsystem, said second ultrasound subsystem being associated with a sensing area within the tank and being configured to measure a parameter characteristic of the liquid, said sensing area being located below the predetermined threshold level. The method comprises in the steps of: —checking the validity of the measurement performed by said first ultrasound subsystem (S10); —when it is detected that the measurement of said first ultrasound system is not valid: (a) checking (S22) the validity of the measurement performed by said second ultrasound subsystem; (b) determining (S24, S25, S26) a quantity of liquid, which quantity being based on a result of the validity check at step (a).

Abstract: The invention concerns a tank (1) of fluid (4) for a motor vehicle (3), comprising a body (5) arranged to receive the fluid (4) and a system (9) for measuring a parameter of the fluid (4) in the tank (1) from an acoustic wave. According to the invention, the acoustic wave (6) is generated by another system (7), the main function of which is not that of emitting an acoustic wave.

Abstract: The invention concerns a tank (1) of fluid (4) for a motor vehicle (3), comprising a body (5) arranged to receive the fluid (4) and a system (9) for measuring a parameter of the fluid (4) in the tank (1) from an acoustic wave. According to the invention, the acoustic wave (6) is generated by another system (7), the main function of which is not that of emitting an acoustic wave.

Abstract: It is proposed a method for determining a quantity of a liquid in a tank, the tank comprising: a first ultrasound subsystem capable of measuring level of liquid present above a predetermined threshold level within the tank; and at least one second ultrasound subsystem, said second ultrasound subsystem being associated with a sensing area within the tank and being configured to measure a parameter characteristic of the liquid, said sensing area being located below the predetermined threshold level. The method comprises in the steps of: checking the validity of the measurement performed by said first ultrasound subsystem (S10); when it is detected that the measurement of said first ultrasound system is not valid: (a) checking (S22) the validity of the measurement performed by said second ultrasound subsystem; (b) determining (S24, S25, S26) a quantity of liquid, which quantity being based on a result of the validity check at step (a).

Abstract: A method is proposed for detecting the level of a fluid in a tank by means of a capacitive probe, the probe comprising a column of capacitive elements, each capacitive element being associated with a given level in the tank. The method comprises the following steps consisting in, for each capacitive element: obtaining a value representative of the capacitance of the capacitive element; obtaining a compensation value depending on a piece of temperature information; calculating a compensated value from the value representative of the capacitance of the capacitive element and from the compensation values; detecting the presence of the fluid at the level associated with the capacitive element, by comparing the compensated value to a preset detection threshold.