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softswitch
直流开关电源软开关技术，阮新波，写的很好，适合电力电子初学者，教师等使用(Dc switching power supply of soft switch technology, the new wave of ruan, write very good, suitable for power electronics beginners, teachers and so on)
- 2021-03-02 22:19:33下载
- 积分：1
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222009322072112
由于太阳能充电系统多在户外，为了方便研究太阳能充电控制系统对蓄电池的充电情况，本文使用GPRS无线传输技术，设计了一套太阳能充电系统蓄电池的充电电压电流远程实时监测系统。系统的硬件部分由电压电流检测电路、单片机STC89C52RC、GPRS模块SIM300以及相应的外围电路构成，下位机软件由C语言编写并与硬件部分构成系统下位机部份，实现了对充电电压电流的信息采集以及数据的无线数传。上位机在LabVIEW2010环境下编写，具备友好的人机交互界面，实现了数据的远程接收、实时显示、数据库管理、报表生成和打印等功能。经过系统测试系统实现了对电压电流的远程监测。(As the solar charging system more outdoors, in order to facilitate the study of solar charge control system for charging the battery case, we use GPRS wireless transmission technology, we designed a solar charging system battery charge voltage and current remote monitoring system. The hardware part of the system by the voltage and current detecting circuit, microcontroller STC89C52RC, GPRS module SIM300 and corresponding peripheral circuits, lower computer software written in C language and hardware parts lower position machine part of the system, the realization of the charging voltage and current information collection and wireless data transmission of data. PC at LabVIEW2010 prepared environment, with friendly interactive interface, realize the remote receiving data, real-time display, management, report generation and printing. After the system test system enables remote monitoring of voltage and current.)
- 2016-01-08 11:43:43下载
- 积分：1
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STM32F10xxx_FSMC_TFT_LCD
Interactive interfaces are more and more integrated into many applications such as medical
devices, process control, mobile phones and other hand-held devices. These interfaces are
based mainly on graphic HMIs (human machine interface) using color LCDs.
Worldwide, the desire for color support is growing dramatically. The purpose of this
application note is to address this aspect by describing how to use the STM32F10xxx FSMC
(flexible static memory controller) to drive a TFT color LCD. This document first describes
how to connect a color LCD to the FSMC, then it provides a TFT LCD interfacing example.
The demonstration firmware delivered with this application note, the STM32F10xxx
firmware library, and other such firmware are available for download the
STMicroelectronics website: www.st.com.
- 2016-02-18 19:37:05下载
- 积分：1
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xishaji
一篇关于细纱机控制设计的论文，通过单片机对细纱机控制。(Control design on a paper frame by frame control micro.)
- 2009-05-17 15:03:29下载
- 积分：1
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zhinengyiqikejian
这是智能仪器的课件，对于初学编程和电路设计很有帮助的。(This intelligent instrument courseware, very helpful for the beginner programming and circuit design.)
- 2012-07-13 14:02:41下载
- 积分：1
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Servlet
A simple servlet program that transforms the arabic numbers into romans and the romans from arabic
- 2012-06-09 17:37:14下载
- 积分：1
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xterm_kern
There are no module parameters for this driver and it can be configured.
- 2015-06-19 13:43:20下载
- 积分：1
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113、程序
说明： 113、基于51单片机老人生理智能监控GSM短信
本设计由STC89C52单片机电路+火焰传感器电路+加速度传感器+心率传感器电路+SIM800A_GSM模块电路+电源电路组成。
该系统实时监测老人是否跌倒，是否周围有火以及心率情况。
1、如果火焰传感器检测到火焰，则GSM向特定手机发送：Fire！
2、如果ADXL345检测到老人跌倒了，则GSM向特定手机发送：Fall！
3、如果心率传感器检测到老人心率高于120，则GSM向特定手机发送：High Heart！
4、注意本设计一次上电上述情况每个只能触发一次上报短信，不会连续发送，防止反复发送，请放心使用。
5、短信处理过程有GSM信号灯指示。
6、GSM模块是SIM800A，该模块和SIM900A电路程序完全兼容外观外形一模一样。(GSM SMS for elderly physiological intelligent monitoring based on 51 MCU
This design consists of STC89C52 MCU circuit + flame sensor circuit + acceleration sensor + heart rate sensor circuit + sim800a_ GSM module circuit + power supply circuit.
The system monitors whether the elderly fall down, whether there is fire around and heart rate in real time.
1. If the flame sensor detects a flame, the GSM sends: fire!
2. If adxl345 detects that an old man has fallen, the GSM sends a specific mobile phone: fall!
3. If the heart rate sensor detects that the heart rate of the elderly is higher than 120, the GSM sends a message to a specific mobile phone: high heart!
4. Pay attention to the design of a power on, each of the above conditions can only trigger a report SMS, will not be sent continuously, to prevent repeated sending, please rest assured to use.
5. SMS processing process is indicated by GSM signal light.)
- 2020-09-02 09:14:08下载
- 积分：1
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Liu_Progress_in_Phys_Geog_v32n1
Airborne LiDAR for DEM generation:
some critical issues
- 2014-09-18 23:40:21下载
- 积分：1
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JASK1000-CC1100(STC89C52)
说明： 51单片机控制cc1100模块发送数据，单片机信号89c52(SCM cc1100 module 51 to send data signals 89c52 microcontroller)
- 2011-03-01 13:12:10下载
- 积分：1
