Abstract: In a walking assist chair, a lifting seat is movable between a first position in which the lifting seat is arranged to form a part of a seat of a wheelchair and a second position that is away from the ground compared to the first position. A receding seat is movable between a third position in which the receding seat is arranged adjacent to the lifting seat arranged in the first position so as to form a part of the seat of the wheelchair and a fourth position in which the receding seat is separated from the lifting seat in the second position. The walking assist chair functions as a wheelchair with a seat on which a user can sit. The walking assist chair functions in a second form as a walking assist apparatus that can support the user in a standing posture.

Abstract: The gas filling system includes: a vehicle that includes a tank and a first communication instrument; and a gas station that includes a second communication instrument. The vehicle includes: a first temperature sensor that acquires temperature information of the gas stored in the tank; a second temperature sensor that acquires temperature information outside the tank; and a controller. The controller permits transmission of the temperature information of the first temperature sensor to the second communication instrument on the condition that the absolute value of a difference between an indicated value of the first temperature sensor and an indicated value of the second temperature sensor is smaller than or equal to a predetermined value, and prohibits transmission of the temperature information of the first temperature sensor to the second communication instrument on the condition that the absolute value of the difference is larger than the predetermined value.

Abstract: The invention addresses the task of providing a gas filling system and a vehicle that are able to simply detect, at a vehicle side, whether there is a drift in a temperature sensor that measures a temperature in a tank of the vehicle. The gas filling system and the vehicle include: a vehicle that includes single or multiple tanks that are able to contain high-pressure gas and a first communication instrument; and a gas station that includes a second communication instrument that receives a signal from the first communication instrument and that feeds gas to the single or multiple tanks. The vehicle includes: a first temperature sensor that acquires temperature information of the gas stored in the single tank; a second temperature sensor that acquires temperature information outside the single tank 22; and a controller.