The maintenance algorithm must be invoked, if the logical ring of the token bus LAN is broken.
在令牌总线局域网络中，当逻辑环被破坏时，就要运行逻辑环维护算法。
Token bus USES a physical bus topology, but also USES a token-passing scheme to arbitrate access to the bus.
令牌总线使用了物理总线拓扑结构，但同时也有一个令牌传递方案，用来判决每台计算机对总线的访问权限。
By means of the bit length factor, the simple data throughput models of the Token Bus and Ring are derived.
利用位长度因素，本文推导了令牌总线和令牌环的简单吞吐性能模型。
This paper proposes that the mathematical model of Token Bus Protocol for LANs is a cyclic queueing system.
本文提出了令牌总线协议的数学模型——循环排队系统。
This paper propose that the mathematical model of gated polling and Token Bus Prolocol for LANs is a multi-queue, single-server discrete system.
本文建立了一种门限式令牌总线局部网协议的数学模型——多用户单服务排队离散系统。
The effective maintenance algorithm for logical ring plays an important role in keeping the network real -time. The complexity of algorithm is the main barrier of implementing the token bus LAN.
逻辑环维护算法的效率是影响网络实时性的重要因素，也是令牌总线局域网络投入实用的主要难点。
As a widely used LAN standard (IEEE802.4), token bus has many advantages such as no competitive conflict, good reliability, good real-time quality, being unacted on throughput in heavy load and so on.
令牌总线具有无竞争冲突、可靠性好、实时性好、在重负载情况下吞吐量不受影响等优点，是一种应用广泛的局域网络标准(IEEE80 2 . 4)。
RETHER is a timed-token-passing bus protocol based on Ethernet. It provides the real-time transfer performance.
RETHER是一种基于以太网的定时令牌总线协议，能够对数据传输提供实时性能。
Linear token passing bus (LTPB) is an advanced interconnection technology, which has many merits such as wide-band, real-time and high reliability and so on.
线性令牌总线(LTPB)是一种先进的机载互连技术，它具有高带宽、实时性强和高可靠性等特点。
At the time of designing bus token protocol, we set out from RS 485 characteristics, with a special design to simplify the protocol, increase the efficiency of the protocol.
在进行令牌总线协议设计时，从RS 485特点出发，以特殊的设计来简化协议，提高协议的效率。
PROFIBUS DP is a kind of multi master-slave station structure bus, and the communication between the masters is Token way, and subordination between the master and slaves.
PROFIBUSDP是一种多主从总线，采用主站间按令牌方式、从站和主站间按主从方式进行数据通信的工作方式。
The problem of guaranteeing real-time message transmission in LTPB network, linear token passing bus, has been studied.
研究LTPB（线性令牌传递总线）在通信网络中保证消息实时传输的带宽分配问题。
The bus network topology structure and token accessing control are used to solve the capability problem of the network communication in data collection.
总线型的网络拓扑结构、令牌传递总线方式的运用，确保了系统数据采集网络通信顺畅。
The paper analyses two message transmission mechanisms of loosely coupled bus-type array computer system, that is, bus-collision and token.
本文分析了松耦合总线型阵列机系统的两种消息传输机制，即总线碰撞检测和令箭传输。
The result has shown that the transmission efficiency of using token mechanism is higher than that of using bus-collision. The result of theoretical analysis is found close to the experiment.
结果表明采用令箭传输机制的传输效率比采用碰撞检测的高，并在实际应用中证明了这一点。
The result has shown that the transmission efficiency of using token mechanism is higher than that of using bus-collision. The result of theoretical analysis is found close to the experiment.
结果表明采用令箭传输机制的传输效率比采用碰撞检测的高，并在实际应用中证明了这一点。
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