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幫忙翻譯一段摘要（漢譯英），謝謝
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| 本設計采用多機系統(tǒng)結構完成了聲音引導系統(tǒng)的硬件和軟件設計。系統(tǒng)下位機采用兩片STC12C5A60S2增強型51單片機，一片用于控制雙直流電機雙輪驅動小車，并發(fā)出聲光信號；另一片檢測三個不同位置的聲音傳感器信號，根據三個位置接受到的聲音信號時間不同，計算出小車離各個接收點的距離，確認移動聲源的位置，決策小車的運動軌跡。兩片單片機采用無線通信的方式進行通信。上位機同步顯示聲源小車的運行狀態(tài)。直流驅動電路采用高效的L293D，有利于提高電源利用率。通過測試三位置聲音到達時間差的方式實現聲源的定位。 |
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| Hardware and software of voice guidance system design is complete by using Multi-motor system structure in this design . The lower control system use two piece STC12C5A60S2 enhanced 51 single-chip computer. One piece used to control the dual DC motor wheel drive car, and give out sound and light signals; another test three different positions of voice sensor signal . According to the voice signals received of three positions at different times, calculate the distance between car and each receiver point, confirm the position of moving sound, determine the car's trajectory. Two piece single-chip computer communicate by wireless communication means. Upper machine shows the car running synchronous. DC driver circuit using effective L293D, help improve power utilization. By testing the different time of sound arrival of the three positions to achieve the localization of their sources. |
2樓2010-11-09 12:10:16
3樓2010-11-09 12:10:46
norlon226(金幣+50, 翻譯EPI+1): 謝謝！ 2010-11-10 19:57:46
| The hardware and software designing of voice guidance system is based on the multi-computer system. Dual-piece STC12C5A60S2 strengthened 51 single-chip computer was utilized as the lower computer. One piece was used to control the dual DC motor and wheel driven car, giving out sound and light signals. Another was utilized to test different voice sensor signals from three positions. According to the difference in the received time of the voice signals, the distance between car and each received positions could be calculated, confirming the position of the moving sound source, and thus the track of the car was determined. Double piece single-chip computers were kept in touch with each other by the mean of wireless communication. The running behavior of the sounded car could be tracked with the up computer at same time. High efficient L293D was driven by DC circuit, improving the utilization efficiency of the power. The localization of the sound source could be achieved by comparing the different time of the sound arrival from the three positions. |
4樓2010-11-09 16:00:32
5樓2010-11-10 19:58:23
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