基于verilog HDL的自動售貨機控制電路設計:
可以對5種不同種類的貨物進行自動售貨,價格分別為A=1.00,B=1.50,C=1.80,D=3.10,E=5.00 。售貨機可以接受1元,5角,1角三種硬幣(即有三種輸入信號IY,IWJ,IYJ),并且在一個3位7段LED(二位代表元,一位代表角)顯示以投入的總錢數，最大9.90元，如果大于該數值，新投入的硬幣會退出,選擇貨物的輸入信號Ia,Ib,Ic,Id,Ie和一個放棄信號In,輸出指示信號為 Sa, Sb ,Sc ,Sd, Se 分別表示售出相應的貨物,同時輸出的信號yuan, jiao代表找零,相應每個脈沖代表找零相應的硬幣，上述輸入和輸出信號均是一個固定寬度的脈沖信號。
標簽：
verilog
1.00
1.50
1.80
上傳時間：
2016-07-12
上傳用戶：lanwei
Problem B:Longest Ordered Subsequence
A numeric sequence of ai is ordered if a1 < a2 < ... < aN. Let the subsequence of the given numeric sequence (a1, a2, ..., aN) be any sequence (ai1, ai2, ..., aiK), where 1 <= i1 < i2 < ... < iK <= N. For example, sequence (1, 7, 3, 5, 9, 4, 8) has ordered subsequences, e. g., (1, 7), (3, 4, 8) and many others. All longest ordered subsequences are of length 4, e. g., (1, 3, 5, 8).
標簽：
Subsequence
sequence
Problem
Longest
上傳時間：
2016-12-08
上傳用戶：busterman
隨著光伏發電系統快速發展,以及電動汽車充電樁的普及,傳統的剩余電流保護器無法滿足實際需求。介紹了一款B型剩余電流保護器,采用磁調制剩余電流互感器和零序電流互感器采集剩余電流。根據GB/T 22794—2017標準要求,可識別1 kHz及以下的正弦交流、帶和不帶直流分量的脈動直流、平滑直流等剩余電流信號。經信號調理電路將電壓信號送到單片機進行采集和判斷。通過試驗測試,該樣機在測試精度和速度上均符合國家標準的相關要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
標簽：
電流保護器
上傳時間：
2022-03-27
上傳用戶：
