b background processing 中文意思是什麼
b background processing
解釋
后臺處理- b :
- background : n 1 後景，背景；基本情況；（紡織品等的）底子；出身；經歷。2 隱蔽的[不引人注目的]地位；幕後。3 襯...
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The integral structure of system are analyzed, and a scheme based on dsps processing board + mcu control board are put forward firstly, following design difficulties and relevant measures. every modules of dsps board are described in details, including chips selection, implementation manners choice, interface and time sequence match and etc. compared otsu single threshold segmentation with multi - threshold segmentations, the latter are preferred to perform the object identification in hardware designed by author. combined to like background rejection, morphology expansion and etc. steps, the paper gets the length of queue ; finally, a - b united control and area united control based on can bus are designed
首先分析了系統的總體結構，提出了一種基於dsps處理板+單片機控制板的信號機實現方案；在此基礎上，重點介紹了處理板模塊化的硬體電路設計，其中考慮了晶元的選型、實現方式的選擇、工作機制、時序匹配等問題；之後，分析了otsu單閾值目標識別和多閾值目標識別的效果，重點選擇後者在硬體電路板內對圖像進行了目標識別的演算法處理，結合背景的剔除、形態學膨脹等幾個減小誤差的措施，對車輛排隊長度進行了較為精確的提取；最後在控制板上完成了干線a - b信號聯動控制和基於can總線的區域聯網控制的通訊方案設計。 -
Online shopping system is the most representative and influential b to c electronic commerce system. using windows dna as a design plan, online shopping system can be designed as three tiers network distributed application system including foreground processing module and background managing module. the foreground processing module is the end interface used by customers, from which the customers may choose goods, shop and pay. the background managing module, which includes the four subsystems such as users manage, goods manage, orders manage and report statistics, is the managing and maintaining environment for system developers and managers
網上購物系統是一種最具代表性和影響力的btoc電子商務系統，應用windowsdna技術作為設計方案，可以將網上購物系統設計成一個具有前臺處理模塊和后臺管理模塊的三層網路分散式應用系統。前臺處理模塊是供顧客使用的最終界面，顧客通過前臺可以挑選商品、購物和支付。后臺管理系統是供開發和管理者對系統進行管理和維護的環境，包括用戶管理、商品管理、訂單管理和報表統計四個子系統。
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