A system and a method for sensing hydrogen charge state of a fuel cell electric vehicle are provided. The system includes an infrared transmission unit that transmits a fuel door sensing infrared signal for sensing a fuel door opened while charging hydrogen and a nozzle sensing infrared signal for sensing a charging station-side hydrogen charging nozzle connected to a hydrogen charging inlet of a vehicle. An infrared reception unit receives the fuel door sensing infrared signal and thereafter, reflected on a fuel door and the nozzle sensing infrared signal transmitted from the infrared transmission unit and thereafter, reflected on the hydrogen charging nozzle. A controller determines that the vehicle is being charged with hydrogen when sensing an open state of the fuel door and a hydrogen charging inlet connection state of the hydrogen charging nozzle.

A system and a method for sensing hydrogen charge state of a fuel cell electric vehicle are provided. The system includes an infrared transmission unit that transmits a fuel door sensing infrared signal for sensing a fuel door opened while charging hydrogen and a nozzle sensing infrared signal for sensing a charging station-side hydrogen charging nozzle connected to a hydrogen charging inlet of a vehicle. An infrared reception unit receives the fuel door sensing infrared signal and thereafter, reflected on a fuel door and the nozzle sensing infrared signal transmitted from the infrared transmission unit and thereafter, reflected on the hydrogen charging nozzle. A controller determines that the vehicle is being charged with hydrogen when sensing an open state of the fuel door and a hydrogen charging inlet connection state of the hydrogen charging nozzle.

A system and a method for sensing hydrogen charge state of a fuel cell electric vehicle are provided. The system includes an infrared transmission unit that transmits a fuel door sensing infrared signal for sensing a fuel door opened while charging hydrogen and a nozzle sensing infrared signal for sensing a charging station-side hydrogen charging nozzle connected to a hydrogen charging inlet of a vehicle. An infrared reception unit receives the fuel door sensing infrared signal and thereafter, reflected on a fuel door and the nozzle sensing infrared signal transmitted from the infrared transmission unit and thereafter, reflected on the hydrogen charging nozzle. A controller determines that the vehicle is being charged with hydrogen when sensing an open state of the fuel door and a hydrogen charging inlet connection state of the hydrogen charging nozzle.

The design and structure of a smart gas cylinder valve cap coupled with a smart MEMS mass flow meter, an embedded iBeacon or RFID reader and a remote data transmission module, which is capable of formulating an Internet of Things (IoT) system, is demonstrated in the disclosure. The smart gas cylinder cap(s) can be directly used to replace the mechanical valve handwheel or directly attached to the top of the existing mechanical handwheel as a smart data relay, and the cap(s) can either be applied to a single or plural numbers of gas cylinders while the smart gas flow meter shall communicate with the smart gas cap as well as to relay gas consumption data to a designated data center or a cloud which can further interface with the users and suppliers of the gas cylinders. The system is beneficial for many of the existing gas cylinder applications such as construction gas process, medical gas racks, gas cylinders for food and beverage, and gas racks for electronics fabrication, where the gas cylinder status, gas consumption as well as cylinder logistics are critical for the applications.

The invention is directed to a hand-wheel for adjusting an outlet pressure and/or a flow-rate of a tap for a gas cylinder, the hand-wheel comprising a body; and a transparent cover fixed on the body. The hand-wheel further comprises indicia arranged between the transparent cover and the body so as to be visible by a user but not in contact with the fingers of the user. The invention is also directed to a tap for gas cylinder, comprising such a hand-wheel, as well as to a tap assembly comprising such a tap and a cover housing the tap.

A device for supplying pressurized fluid including a pressurized fluid cylinder, at least one first tap connected to the pressurized fluid cylinder, the tap including an internal fluid circuit including an isolation valve, the device including an electronic apparatus for the wireless remote communication of data via electromagnetic waves, the electronic communication apparatus including a communication element designed to communicate wirelessly using at least one of the following frequency-modulation and/or phase-modulation low-consumption and long-range communication technologies: LoRa communication technology, communication technology from Sigfox, where the device includes a protective cap mounted on the cylinder in order to protect the first tap and a second tap connected detachably to the first tap, and the electronic communication apparatus being situated either on the cylinder, on the cap, on the first tap, or on the second tap.

A system for supplying a gas to a supply target from a fluid of a gas-liquid mixture stored in a pressure vessel, comprising: a first line connected to a layer of the gas in the pressure vessel; a second line connected to a layer of the liquid in the pressure vessel and having a vaporizer in the middle and merging into the first line downstream of the vaporizer; a valve disposed between the pressure vessel and the vaporizer in the second line; a pressure gauge for obtaining a pressure in the pressure vessel; and a control device, wherein the control device receives pressure information from the pressure gauge and, when the internal pressure of the pressure vessel falls below a predetermined value, controls to open the valve and supply the vaporized gas in the vaporizer in the second line from the first line to the pressure vessel.

A system and a method for sensing hydrogen charge state of a fuel cell electric vehicle are provided. The system includes an infrared transmission unit that transmits a fuel door sensing infrared signal for sensing a fuel door opened while charging hydrogen and a nozzle sensing infrared signal for sensing a charging station-side hydrogen charging nozzle connected to a hydrogen charging inlet of a vehicle. An infrared reception unit receives the fuel door sensing infrared signal and thereafter, reflected on a fuel door and the nozzle sensing infrared signal transmitted from the infrared transmission unit and thereafter, reflected on the hydrogen charging nozzle. A controller determines that the vehicle is being charged with hydrogen when sensing an open state of the fuel door and a hydrogen charging inlet connection state of the hydrogen charging nozzle.

A device, a system, and methods for tracking conductive composite pressurized gaseous storage tanks. The system including anchoring an RFID device in a non-conductive blind boss, wherein the anchor material has a low dielectric and has minimal reflection of RF energy.

A cover for a tap of a gas cylinder, the cover comprising a shell for housing the tap, the shell comprising a front area for an indicator, a wheel for adjusting the outlet pressure and/or flow rate, and/or at least one outlet connector of the tap. The front area of the shell is a part that is distinct from, and configured to be attached to, the rest of the shell.