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数据库系统 一个基于VB的仓库管理系统

一个基于VB的仓库管理系统,采用ACCESS数据库,ACCESS数据库密码为:prowind,登录帐号为Admin,密码为空。这个仓库管理系统功能还挺多,程序要用到FxPrint、Storage.dll控件,已打包。请先编译生成EXE文件再运行,否则会报错。这套仓库管理系统大致可分为信息输入、单据管理、查询统计、报表中心、维护设置等等。 ...
https://www.eeworm.com/dl/523/482466.html
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技术资料 基于单片机温度采集与报警系统的研究

利用DS18B20设计一种多路温度数据采集和直流电机散热系统,可实现语音播报功能。系统主要由单片机电路和一组DS18B20数字传感器构成,同时具有温度显示、数据存储和串行通信模块。通过keil软件编写和调试程序,并利用Proteus仿真测试硬件电路,测温范围-10~+45℃,最后通过LCD1602显示所测温度。将制作实物与温度计置于相同设定温 ...
https://www.eeworm.com/dl/895509.html
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单片机编程 基于ATmega16L单片机的温度控制系统设计

 设计一种基于ATmega16L单片机的温度控制系统,阐述该系统的软硬件设计方案。采用模块化设计方法,利用增量式PID算法使被控对象的温度值趋于给定值。实验结果表明该系统具有良好的检测和控制功能。 Abstract:  This paper designs a temperature control system based on ATmega16L,describes the hardware and ...
https://www.eeworm.com/dl/502/29182.html
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技术资料 基于AT89C51单片机电池性能检测电路的设计

以AT89C51单片机为系统控制核心,采用恒流源和恒压源的控制电路对电池提供标准检测参数,并通过显示器和计时器显示的检测系统。该检测系统能检测智能手机电池的容量和充放电特性等,并直观显示所需数据和分析结果。Taking the AT89C51 microcontroller as the system control core,the control circuit of the constant curren ...
https://www.eeworm.com/dl/898311.html
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技术资料 基于STM32单片机的窨井探测仪设计

设计以STM32F103单片机为核心控制,以压电式电声型超声波换能器为逻辑控制的系统方案,包括单片机系统主控制电路、超声波换能器发射电路、软件程序编写以及测试结果信号分析等,测试结果证明达到误差要求。A system scheme was designed, which took STM32F103 microcontroller as the core control and the piezoelectric ele ...
https://www.eeworm.com/dl/898930.html
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电源技术 DN464 高效率USB电源管理系统

  Automotive power systems are unforgiving electronicenvironments. Transients to 90V can occur when thenominal voltage range is 10V to 15V (ISO7637), along withbattery reversal in some cases. It’s fairly straightforwardto build automotive electronics around this system, butincreasingl ...
https://www.eeworm.com/dl/505/24333.html
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技术书籍 GSM智能网原理_华为

GSM是Global System For Mobile Communications的缩写。由欧洲电信标准组织ETSI制订的一个数字移动通信标准。GSM是全球移动通信系统(Global System of Mobile communication) 的简称。它的空中接口采用时分多址技术。
https://www.eeworm.com/dl/537/36826.html
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文章/文档 All 3G and GSM specifications have a 3GPP specification number consisting of 4 or 5 digits. (e.g. 09

All 3G and GSM specifications have a 3GPP specification number consisting of 4 or 5 digits. (e.g. 09.02 or 29.002). The first two digits define the series as listed in the table below. They are followed by 2 further digits for the 01 to 13 series or 3 further digits for the 21 to 55 series. The term ...
https://www.eeworm.com/dl/652/182836.html
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其他书籍 After the successful global introduction during the past decade of the second generation (2G) digita

After the successful global introduction during the past decade of the second generation (2G) digital mobile communications systems, it seems that the third generation (3G) Universal Mobile Communication System (UMTS) has finally taken off, at least in some regions. The plethora of new services that ...
https://www.eeworm.com/dl/542/367304.html
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操作系统开发 int main(int argc,char *argv[]) { char ch while(true) { printf("*************************

int main(int argc,char *argv[]) { char ch while(true) { printf("*************************************\n") printf(" 1.Reader Priority\n") printf(" 2.Writer Priority\n") printf(" 3.Exit to Windows\n") printf("*************************************\n") printf("Enter your choice(1,2, ...
https://www.eeworm.com/dl/531/388505.html
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