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对电视发射台有很高的“停播率”指标要求,但对这样的系统可靠性进行定量分析,目前还没有。从给出系统可靠性定义、构建模型,详细分析电视发射台系统可靠性问题。特别是得出在20秒/百小时的“停播率”指标要求下,发射机平均无故障时间550小时,平均修复时间0.5小时是保证系统可靠性的最低要求及固态发射机冷备比热备可靠性高这样一些技术人员和管理人员还没认识的数量概念。
There is a very high demand for “off rate” for television transmitters, but there is currently no quantitative analysis of such system reliability. The definition of system reliability is given and the model is constructed to analyze the reliability of the system of TV transmitter station in detail. In particular, it is concluded that the average MTBF of 550 hrs and the average recovery time of 0.5 h are the minimum requirements to ensure the system reliability and the solid state transmitter cold standby Than the high reliability of hot standby such technical personnel and managers do not know the concept of quantity.