A wireless communication device comprising: a communication control unit that is configured to wirelessly connect a work vehicle, which is any one of mobile cranes, aerial work vehicles, and land-rail vehicles, and a portable terminal; an acquisition unit that is connected to an onboard network of the work vehicle and is configured to acquire work vehicle identification information for identifying the work vehicle from the work vehicle; a generation unit that is configured to generate first character string data based on the work vehicle identification information; and a setting unit that is configured to set the generated first character string data to the communication control unit as a network name; a storage unit that is configured to store second character string data for identifying the wireless communication device; and a selection unit that is configured to select a first mode in which the generated first character string data is set to the communication control unit as the network name, and a second mode in which the stored second character string data is set to the communication control unit as the network name, wherein the setting unit is configured to set the generated first character string data to the communication control unit as the network name when the first mode is selected in the selection unit, and to set the stored second character string data to the communication control unit as the network name when the second mode is selected in the selection unit, the wireless communication device is a wireless unit detachably connected to the work vehicle via a connector; and after wireless communication between the work vehicle and the portable terminal has been established using the network name set in the wireless communication device, the wireless communication device is configured to output an operation signal received from the portable terminal to the onboard network, wherein the operation signal is a signal for remotely controlling the work vehicle. a communication control unit that is configured to wirelessly connect a work vehicle, which is any one of mobile cranes, aerial work vehicles, and land-rail vehicles, and a portable terminal; an acquisition unit that is connected to an onboard network of the work vehicle and is configured to acquire work vehicle identification information for identifying the work vehicle from the work vehicle; a generation unit that is configured to generate first character string data based on the work vehicle identification information; and a setting unit that is configured to set the generated first character string data to the communication control unit as a network name; a storage unit that is configured to store second character string data for identifying the wireless communication device; and a selection unit that is configured to select a first mode in which the generated first character string data is set to the communication control unit as the network name, and a second mode in which the stored second character string data is set to the communication control unit as the network name, wherein the setting unit is configured to set the generated first character string data to the communication control unit as the network name when the first mode is selected in the selection unit, and to set the stored second character string data to the communication control unit as the network name when the second mode is selected in the selection unit, the wireless communication device is a wireless unit detachably connected to the work vehicle via a connector; and after wireless communication between the work vehicle and the portable terminal has been established using the network name set in the wireless communication device, the wireless communication device is configured to output an operation signal received from the portable terminal to the onboard network, wherein the operation signal is a signal for remotely controlling the work vehicle.