A portable terminal for communication with an open-cabin vehicle having a riding area is not an enclosed space, the portable terminal having key information, wherein the open-cabin vehicle includes:
- a drive apparatus;
- a control apparatus configured to control the drive apparatus, the control apparatus including:
- a drive control unit configured to control the drive apparatus;
- an identification signal transmission unit which is a beacon and configured to intermittently transmit an identification signal including identification information which is identifiable information, without any operation on the open-cabin vehicle or the portable terminal;
- a response signal reception unit configured to receive a response signal transmitted from the portable terminal including the key information;
- a request signal transmission unit configured to transmit, in response to reception of the response signal, a request signal for requesting the portable terminal to transmit a key information signal including the key information;
- a key-information signal reception unit configured to receive the key information signal including the key information transmitted from the portable terminal;
- a drive-activation permission determination unit configured to determine, based on the key information signal received by the key-information signal reception unit, whether or not to permit activation of the drive control unit;
- and
- a drive activation control unit configured to activate the drive control unit in response to the drive-activation permission determination unit permitting activation of the drive control unit;
- and
- a power supply apparatus configured to supply power to the control apparatus,
- wherein the control apparatus is configured such that the identification signal transmission unit intermittently transmits the identification signal without any operation on the open-cabin vehicle or on the portable terminal, and the drive control unit is activated without any operation on the open-cabin vehicle or on the portable terminal,
- the portable terminal comprising:
- a storage unit for storing the key information;
- a response signal transmission unit configured to transmit, in response to the identification signal which has been intermittently transmitted, the response signal without any operation on the open-cabin vehicle or the portable terminal;
- and
- a key-information signal transmission unit configured to transmit, in response to the request signal by the request signal transmission unit, the key information signal including the key information without any operation on the open-cabin vehicle or the portable terminal;
- wherein the response signal further includes distance information regarding a distance between the portable terminal and the open-cabin vehicle,
- wherein the control apparatus of the open-cabin vehicle further includes a distance determination unit configured to determine, based on the response signal including the distance information, whether or not the distance between the portable terminal and the open-cabin vehicle is within a specific distance, without any operation on the open-cabin vehicle or the portable terminal, and
- wherein the request signal transmission unit is configured to transmit the request signal for requesting the portable terminal to transmit the key information signal including the key information in response to the distance determination unit determining, based on the distance information, that the distance between the portable terminal and the open-cabin vehicle is within the specific distance,
- the portable terminal further comprising
- a distance information generation unit configured to generate the distance information regarding the distance between the portable terminal and the open-cabin vehicle in response to reception of the identification signal, wherein
- the response signal transmission unit of the portable terminal is configured to transmit the response signal including the distance information without any operation on the open-cabin vehicle or the portable terminal, and
- wherein
- the identification signal includes signal strength information that is information regarding the signal strength of the identification signal transmitted from the identification signal transmission unit, and
- the distance information is RSSI (Received Signal Strength Indicator) which is the signal strength of the identification signal at the portable terminal that has received the identification signal or a proximity which is determined based on the signal strength information and RSSI.