wireless communication device

Abstract

The vehicle-mounted device (1) as a wireless communication device is equipped with: a wireless communication unit (16) capable of performing wireless communication using at least a 5GHz frequency band; a current position detection unit (11) that detects the current position of the own device; and a wireless communication circle prediction The unit (15), when the wireless communication unit (16) is communicating, based on the interference data (13), which is information related to the reach of radio waves transmitted from other systems that use the 5 GHz frequency band and transmit and receive radio waves in a stationary state , map data (14), and the current position detected by the current position detection unit (11), determine whether the switching of the channel of the wireless communication unit (16) is needed, and in the case of needing switching, further select the switching target channel by oneself, Or make the wireless communication unit (16) select the switching target channel.

Description

technical field [0001] The present invention relates to a wireless communication device that is assumed to be used while moving. Background technique [0002] Examples of wireless communication devices used in automobiles include hands-free devices, music players, and the like that are wirelessly connected to mobile phones via Bluetooth (registered trademark). In particular, in-vehicle devices incorporating functions as hands-free devices and music players, such as car navigation devices and in-vehicle audio devices, are widespread (see Non-Patent Document 1). [0003] Furthermore, the in-vehicle device has a built-in wireless connection function based on a wireless LAN (Local Area Network, local area network), and wirelessly connects a device with a wireless LAN communication function brought into the car by the user to the in-vehicle device, and also performs communication between multiple devices in the car. Such demand for wireless communication is also increasing. Wir...

AI Technical Summary

Problems solved by technology

[0011] Therefore, in the case of real-time transmission of large-capacity data such as video data using a wireless communication system equipped with a wireless LAN in the 5GHz frequency band, since the communication channel is changed during the transmission of video data, the transmission of video data at the time of the change is cut off, causing Defects such as blurring of the image on the receiver side of the image, and image stoppage

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