Wireless communication device and wireless communication system applied to port automation

The invention discloses a wireless communication device and wireless communication system applied to port automation. The wireless communication system is composed of multiple wireless communication devices, a switch device and a master control device. Each wireless communication device is equipped with a ground communication part arranged on a yard ground, and a yard crane communication part arranged on a yard crane in the yard. Each ground communication part comprises a signal transmitting/receiving unit for transmitting or receiving a communication signal, a signal conversion unit for converting the communication signal from an electric signal form to an electromagnetic wave or converting the electromagnetic wave into the electric signal, a leakage unit for externally radiating the electromagnetic wave, and a waveguide load which is mounted at the rear end of the leakage unit and is used for preventing the electromagnetic wave from being leaked from the rear end. Each yard crane communication part comprise