Abstract: A grip includes a core that forms a structure of the grip and has electrical conductivity, a sensing electrode for detecting a biological signal of a user, and a ground electrode that is connected with a reference voltage portion. The core, the sensing electrode and the ground electrode are insulated from one another. The core is disposed inside the grip, and the sensing electrode is exposed on a surface of the grip. The sensing electrode and the core are connected with one another via a voltage follower circuit. The ground electrode is located at such a position that the core is able to reduce a parasitic capacitance which would be formed between the ground electrode and the sensing electrode.

Abstract: An intoxication detection device includes: a gas detection sensor; a gas storage recess which is recessed to accommodate the gas detection sensor therein; and an exhaust fan formed adjacent to the gas storage recess. The intoxication detection device is configured to detect an alcohol component contained in a discharge gas discharged from a skin of the driver without contacting the skin in response to a hand of the driver being brought close to the gas detection sensor. The exhaust fan is operated for a predetermined period of time while a state of the hand blocking the gas storage recess is detected, and during the operation, the exhaust fan is configured to exhaust air or the discharge gas stored in the gas storage recess. The gas detection sensor is set so as to measure the discharge gas stored in the gas storage recess after the exhaust fan stops operating.

Abstract: A steering wheel includes a grip portion to be gripped during rotation steering; a skin layer being sheet-like and disposed to cover at least an outer peripheral surface side of the grip portion; and a conductive portion using a conductive thread made of a conductive fiber and disposed on an outer surface side of the skin layer. The conductive portion includes a decorative portion formed to decorate the outer surface side of the skin layer using the conductive thread.

Abstract: An alcohol level detection device capable of detecting an alcohol level of a driver, includes a thermal camera mounted near a driver seat and to detect a body temperature of the driver, a contact electrocardiogram sensor disposed on a steering wheel steered by the driver and to detect an electrocardiogram waveform and a heart rate of the driver, a non-contact gas detection sensor disposed on a grip of the steering wheel and to detect an alcohol component contained in a gas discharged from a skin of the driver without contact with the skin, and a determination circuit which determine the alcohol level of the driver based on a measurement value of the body temperature detected by the thermal camera, measurement values of the electrocardiogram waveform and the heart rate detected by the contact electrocardiogram sensor, and a value of the alcohol component detected by the gas detection sensor.

Abstract: A grip includes a core that forms a structure of the grip and has electrical conductivity, a sensing electrode for detecting a biological signal of a user, and a ground electrode that is connected with a reference voltage portion. The core, the sensing electrode and the ground electrode are insulated from one another. The core is disposed inside the grip, and the sensing electrode is exposed on a surface of the grip. The sensing electrode and the core are connected with one another via a voltage follower circuit. The ground electrode is located at such a position that the core is able to reduce a parasitic capacitance which would be formed between the ground electrode and the sensing electrode.