Abstract: To improve pedestrian visibility. Provided is a headlight controller connectable to a first headlight and a second headlight spaced apart in a vehicle width direction at the front of the vehicle, the headlight controller including: a rainfall amount detection means installed in the vehicle; and a controller installed in the vehicle, where the controller is connected to the rainfall amount detection means, and the controller carries out control such that when rainfall amount detected by the rainfall amount detection means is equal to or more than a predetermined value, irradiation light from the first headlight becomes relatively darker than irradiation light from the second headlight.

Abstract: A wireless communication system is provide that includes deep body temperature sensors that include a measured deep body temperature into an advertising packet that is then transmitted. A display unit displays a measurement result of a deep body temperature. When the wireless connection to the display unit is not established, each of the deep body temperature sensors includes a result of determination of whether it is stuck to a human body into an advertising packet and transmits the advertising packet. In an aspect, the display unit is wirelessly connected to a sensor stuck to a human body among the deep body temperature sensors.

Abstract: The conversion adapter is provided that includes a radio communication unit that receives biological information based on the digital data transmitted from an external biological sensor by using radio communication; an information processing unit that performs data processing of the biological information based on the digital data; a converter that converts the biological information based on the digital data processed by the information processing unit to biological information based on analog data; and a connection unit that is connectable through wire to an external biological information monitor and that outputs the biological information based on the analog data converted by the converter.