Institute of electronic and electrical engineers (IEEE) 1394 and universal plug and play (UPnP) technology-based remote control and access method and device

Abstract

The invention discloses an institute of electronic and electrical engineers (IEEE) 1394 and universal plug and play (UPnP) technology-based remote control and access method and an IEEE1394 and UPnP technology-based remote control and access device. According to the device, a UPnP over 1394 module is added between a UPnP stack module and a 1394 communication module, and is used for realizing seamless connection between 1394 equipment and a UPnP control point. According to the method, after a bus is reset, a memory address of the 1394 equipment is scheduled and managed in a unified way, mapping between a hardware address of the 1394 equipment and an identity (ID) number of a node is acquired through an address resolution protocol (ARP), the 1394 equipment is discovered, a service description document of the 1394 equipment is generated, the control information state of the control point is stored for failure analysis, and a buffer control module and a quality of service (QoS) control module are used for ensuring isochronous video stream transmission and quality of service. Bridge equipment address conflict and waste are prevented, and a remote access failure caused by the variation of the ID number of the node is avoided, and the method and the device have failure diagnosis capability and video transmission QoS ensuring capability.

Description

Technical field [0001] The invention relates to a remote control and access technology, in particular to a method and a device for realizing remote control and access by bridging IEEE1394 equipment and UPnP (Universal Plug and Play) equipment. Background technique [0002] IEEE 1394 is a high-performance serial bus standard established by IEEE (Institute of Electronic and Electrical Engineers) in December 1995, also known as Fire Wire. Support both isochronous and asynchronous transmission modes. The support for isochronous transmission can ensure that the transmission of the specified amount of data is completed within the specified time. The time delay of less than 1 microsecond is very conducive to the transmission of data that is sensitive to time delay such as images and sounds. The asynchronous request-response transmission can be used for data transmission that requires high transmission accuracy. The 64-bit addressing method based on CSR (Control and Status Register) i...

AI Technical Summary

Problems solved by technology

Several problems that the bridge must solve: 1) Addressing of IEEE1394 devices, which is the basis for accessing them

The existing bridging technology does not do node address scheduling for UPnP / 1394 bridge devices, which will cause problems such as address waste and data transmission errors when receiving remote control access, and does not take into account the differences between the two buses during video transmission. QoS Guarantee Protocol

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