-
通用无线分组业务(GPRS) 是一种基于全球移动通信系统(GSM) 的无线分组交换技术, 提供
端到端的、广域的无线IP 连接, 具有永远在线等特点。介绍了...
通用无线分组业务(GPRS) 是一种基于全球移动通信系统(GSM) 的无线分组交换技术, 提供
端到端的、广域的无线IP 连接, 具有永远在线等特点。介绍了基于GPRS 网络的数据终端单元
(DTU) 。该单元是由以ARM芯片S3C44B0X 和GPRS 模块G20 为核心的硬件和软件组成。在概括
工业GPRS 监控系统构成的基础上, 介绍了GPRS DTU 硬件设计, GPRS DTU 软件是由μC /OSⅡ操
作系统、TCP / IP 协议、点对点协议组成。该单元使用户通过GPRS 网络实现用户设备和用户数据
中心之间的数据传输-General Packet Radio Service (GPRS) is based on Global System for Mobile Communications (GSM) wireless packet switching technologies to provide end-to-end, wide-area wireless IP connection, with always-on and so on. Presented data based on the GPRS network terminal unit (DTU). The unit is the ARM chip from S3C44B0X and GPRS Module G20 as the core hardware and software components. In the summary of the industrial composition of GPRS monitoring system based on GPRS DTU introduces hardware design, GPRS DTU software by μC/OS Ⅱ operating system, TCP/IP protocol, the composition of point-to-point agreement. The unit allows users to users through the GPRS network equipment and user data between the data center
- 2023-04-28 11:25:04下载
- 积分:1
-
3D数学基础:图形与游戏开发书籍源码,里面有很多实用的代码,对做3D的同志很有意义...
3D数学基础:图形与游戏开发书籍源码,里面有很多实用的代码,对做3D的同志很有意义-3D mathematical foundation : graphics and game development books source, there are many practical code, 3 D right to do meaningful comrades
- 2022-11-03 12:20:07下载
- 积分:1
-
详细介绍了在CPPunit下的测试用例的编写,对软件测试新手很大帮助....
详细介绍了在CPPunit下的测试用例的编写,对软件测试新手很大帮助.-Described in detail in the next CPPunit the preparation of test cases for software testing novice of great help.
- 2022-01-27 12:30:05下载
- 积分:1
-
c51电子书
推举C51基础编程书籍,相信对新手有很大帮助
c51电子书
推举C51基础编程书籍,相信对新手有很大帮助-c51book
- 2022-07-12 13:31:29下载
- 积分:1
-
c语言编程规范Style guidelines and programming practices for C/C++ code for Dynamic Sof...
c语言编程规范Style guidelines and programming practices for C/C++ code for Dynamic Software Solutions. Use the checklist at the end of this document prior to submitting code for peer review.-norms Style guidelines and programming practices for C/C code for Dynamic Software Solutions. Use the checklist at the end of this document prior to submitting code for peer review.
- 2023-08-11 12:55:03下载
- 积分:1
-
最近研究混沌电路设计,这个是混沌电路的入门,对基本元件(微分器,放大器,乘机器)的原理进行讲述,并给出一个混沌和超混沌系统的电路设计。...
最近研究混沌电路设计,这个是混沌电路的入门,对基本元件(微分器,放大器,乘机器)的原理进行讲述,并给出一个混沌和超混沌系统的电路设计。-Recent studies have chaotic circuit design, this is a chaotic circuit to introduce the basic components (differential, amplifier, took the opportunity to device) is about the basic principles involved, and gives a chaotic and hyperchaotic systems circuit design.
- 2022-03-05 02:42:26下载
- 积分:1
-
侯捷的书。关于重构。个人收集的比较经典的书。
侯捷的书。关于重构。个人收集的比较经典的书。-Hou Jie book. With regard to reconstruction. Personal collection of more classic book.
- 2022-06-27 18:01:28下载
- 积分:1
-
at8000s开关使用手册
AT8000S Switch use Manual-AT8000S Switch Switch use Manual
- 2022-06-14 06:05:48下载
- 积分:1
-
exim the i/o
检查串口是否良好,经测试多次,可以检查自己制作的串口电路是否畅通-exim the i/o
- 2022-08-22 19:38:58下载
- 积分:1
-
AutoCAD 2000 study guides, this need not be on it, the structure of the plan has...
AutoCAD 2000学习教程,这个就不用多说了吧,学制图的人都知道!-AutoCAD 2000 study guides, this need not be on it, the structure of the plan has to know!
- 2022-08-22 01:29:15下载
- 积分:1