VIDEO TRANSMISSION DEVICE, VIDEO TRANSMISSION METHOD, AND COMPUTER PROGRAM

• Main Author: MORISAWA YUTA
• Format: Patent
• Language: English; Japanese
• Published: 05.03.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

To improve the quality of video transmitted using a plurality of IP communication paths via a wireless communication path.SOLUTION: A video transmission device includes: a plurality of wireless communication units for establishing a wireless communication path of different wireless communication systems; a wireless measurement unit for measuring a communication quality value of the wireless communication path; a plurality of IP communication units provided corresponding to each of the plurality of wireless communication units for establishing an IP communication path between video receiving devices via the wireless communication path corresponding to the IP communication unit with a different IP address for each IP communication unit; an IP measurement unit for measuring a communication quality value of the IP communication path; a communication path quality determination unit for determining the total communication path quality on the basis of the combination of the communication quality value of the wireless communication path and the communication quality value of the corresponding IP communication path; and a transmission control unit for transmitting video data to the video receiving device using a plurality of IP communication paths. The transmission control unit selects an IP communication path for transmitting the video data on the basis of the total communication path quality and the importance of the video data.SELECTED DRAWING: Figure 1 【課題】無線通信路を介する複数のＩＰ通信路を使用して伝送される映像の品質向上を図る。【解決手段】各々異なる無線通信方式の無線通信路を確立する複数の無線通信部と、無線通信路の通信品質値を測定する無線測定部と、複数の無線通信部の各々に対応して設けられる複数のＩＰ通信部であってＩＰ通信部に対応する無線通信路を介する映像受信装置間のＩＰ通信路をＩＰ通信部毎に異なるＩＰアドレスで確立する複数のＩＰ通信部と、ＩＰ通信路の通信品質値を測定するＩＰ測定部と、無線通信路の通信品質値と対応するＩＰ通信路の通信品質値との組合せで総合通信路品質を判断する通信路品質判断部と、複数のＩＰ通信路を使用して映像受信装置への映像データ送信を行う送信制御部と、を備え、送信制御部は、総合通信路品質と映像データの重要度とに基づいて当該映像データを送信するＩＰ通信路を選択する。【選択図】図１