Automatic dependent surveillance-broadcast (ADS-B) and automatic dependent surveillance-contract (ADS-C) are two different air traffic control surveillance modes.

广播式自动相关监视(ads - B)与合约式自动相关监视(ads - C)是两种不同的自动相关监视体制。

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Through control of this system software, audio broadcast, display of time and date and setting-up Function of automatic stop announcer in public buses can be realized.

通过本系统软件的控制，实现了公交车报站器的语音播报和时间、日期的显示和设置功能。

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