Token passing method for families

A token and family technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as increased system overhead, increased contention for bus network conflicts, and decreased system efficiency, and achieve classification and flow control Effect

Active Publication Date: 2013-06-19
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heavy load, the time for token bus network to transmit the mark is constant, and the contention bus network conflict increases, the system overhead increases accordingly, and the system efficiency drops rapidly

Method used

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  • Token passing method for families
  • Token passing method for families
  • Token passing method for families

Examples

Experimental program
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Embodiment Construction

[0018] An embodiment of the present invention provides a token passing method applied to a family, which will be described in detail below.

[0019] In this token passing method, each slave node has its own priority, and the MAC address is globally unique. It is determined when the device is produced. The priority is determined by default according to the service type, and can be set by the user. The priority of the master node is fixed at 0. It should be noted that, in a digital home network, the master node is a home gateway, and the slave nodes are various application terminals connected to the home gateway in the home, such as computers, telephones, televisions, game consoles, security equipment, meter reading Collector etc.

[0020] The token passing method can realize the identification (ID, IDentity) division of the slave nodes controlled by the home gateway; realize the access of 6 kinds of services (expandable to 16 kinds of services at most) and 64 home service termi...

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PUM

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Abstract

The invention discloses a token passing method for families. Identification data (ID) information which is distributed to slave nodes by host nodes is extracted from slave node ID distributing frames, highest priority-first queues are scanned by the host nodes, whether valid data existing in the queues which is scanned is judged, if the valid data exist, downlink data frames are sent by the host nodes; if the valid data do not exist, uplink data transmission of the host nodes is achieved; and after all the priority-first queues are scanned, a new round of scanning from the highest priority-first queues is carried out again. According to the token passing method for the families, the host nodes are used for controlling ID dividing of the slave nodes, transmission of the uplink data and the downlink data is carried out according to ID of the slave codes and priority of the slave nodes, accordingly connection of six services and 64 family service terminals can be achieved, and classification of quality of service (QoS) and flow control can be achieved.

Description

technical field [0001] The invention relates to the technical field of token network protocols, in particular to a token transfer method applied to families. Background technique [0002] Power lines spread all over cities and villages, and its coverage is unmatched by any network, which is conducive to the promotion of power line communication (PLC, Power Line Communication) network. PLC transmits data through power lines, no need to add more lines and equipment, just plug the modem into the power socket to communicate, easy to use, low cost, and conducive to information resource sharing and easy access to home appliances. In addition to the obvious advantages in construction, PLC also has advantages in overall price. With the development of the market, the price of PLC, which was relatively high in the past, is gradually decreasing. At present, the single-line cost of PLC is comparable to that of xDSL and cable modem. In terms of speed, the power line Internet has passed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/417H04L12/851H04L29/12
Inventor 孙玉刘桂君齐鹏飞孙毅
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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