目前車輛動態(tài)稱重信號采集系統(tǒng)存在體積大、集成度低等問題，PSoC(Programmable System on Chip)內(nèi)部具有豐富的數(shù)字資源和模擬資源，本文主要介紹了基于具有全速USB接口的PSoC芯片 CY8C24794的車輛動態(tài)稱重信號采集系統(tǒng)的軟、硬件設(shè)計方法和實現(xiàn)。該系統(tǒng)小巧實用， 便于攜帶，節(jié)省了USB接口芯片、AD等功能芯片，與VXI高速采集系統(tǒng)采集的信號相比，本系統(tǒng)的實驗結(jié)果與VXI實驗結(jié)果類似，系統(tǒng)很好滿足了信號采集的要求。

　　Abstract:

　　The vehicle dynamic weighing signal acquisition system exists bulky， low integration issues， PSoC (Programmable System on Chip) has a abundant of digital and analog resources， this article presented design of signal collection system for WIM based on PSoC chip CY8C24794 with a full-speed USB interface. The system is compact and practical， easy to carry， to save the USB interface chip， AD chip and so on， compared to the signal of high-speed acquisition system with VXI， the experimental results of this system is similar to the VXI system very well and it meets the requirements of the signal acquisition.

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