[文章/文档] 111
周琪老师纂写的基于虚拟极点验证极区导航算法的方法研究，提出了以赤道上任意一点为新极点的模拟极区验证极区间接格网导航的方法。并通过仿真验证了极区导航算法的性能。
The method of polar area navigation based on virtual pole validation compiled by Professor Zhou Qi is studied. A method of simulating polar area validation grid navigation with arbitrary point on the equator as new pole is proposed. The performance of polar navigation algorithm is verified by simulation. (2018-11-22, PDF, 1082KB, 下载1次)
[文章/文档] Control Method of VSG
为实现对逆变器在离网状态下不平衡电压的控制，通过 d-q坐标系下电感电压正负序解耦控制，同时利用VSG能够为电网提供惯性的特点，使逆变器交流侧实现三相电压平衡。改善了离网不平衡状态下负序电压对电网的影响，从而抑制了逆变器输出有功功率的波动，提高了系统的稳定性。通过仿真实验证明所提方法的有效性。
In order to realize the control of the unbalanced voltage of the inverter in the off network state, the inductance voltage and positive and negative sequence decoupling control in the d-q coordinate system, and the characteristics of the VSG can provide the inertia of the power grid, make the inverter AC side realize the three-phase voltage balance. The influence of negative sequence voltage on the power grid is improved under the condition of off balance network, thus suppressing the fluctuation of the output active power of the inverter and improving the stability of the system. The validity of the proposed method is proved by the simulation experiment (2018-05-21, PDF, 1137KB, 下载49次)
[文章/文档] GB28181
监控领域国标，对研究接入GB28181的人非常好的资源。
标准规定了城市监控报警联网系统中信息传输、交换、控制的互联结构、通信协议结构，传输、交换、控制的基本要求和安全性要求，以及控制、传输流程和协议接口等技术要求。该标准适用于安全防范监控报警联网系统的方案设计、系统检测、验收以及与之相关的设备研发、生产，其他信息系统可参考采用。
The GB28181 standard stipulates the basic requirements and security requirements for the structure of the transmission, exchange and control of information, the structure of the communication protocol, the protocol of the transmission, exchange and control in the urban monitoring and alarm networking system, as well as the technical requirements of the control, transmission procedures and protocol interfaces. The standard applies to the security alarm monitoring network monitoring system design, system testing, acceptance and related equipment research and development, production, other information systems can be used by reference. (2017-11-13, PDF, 3442KB, 下载8次)
[文章/文档] hongwai
这是红外方面的一个资料集，有11篇红外方面的文章，包括红外传感器、热释电方面的，很有用，在中国期刊网下的，自己整理的
This is the infrared aspects of a data set, there are 11 infrared aspects of the article, including infrared sensors, pyroelectric aspects, useful journals in China, under the net, and his finishing (2009-12-22, PDF, 2217KB, 下载32次)
[文章/文档] RS232_RJ45
目前在工业控制领域,单片机系统主要通过RS232、RS485和CAN总线协议通信,它们无法直接与互联网连接,因此该系统处于与互联网隔绝的状态。这些系统广泛采用低成本8位单片机,而这种单片机一般只具有RS232异步串行通信接口,要接入到互联网必须进行通信接口改造,这种改造不仅是接口的物理改造,更关键是数据格式的改造和通信协议的转换。本文提出一种RS232串行通信接口与RJ45以太网接口转换器的设计方案,已有的单片机系统可以通过该转换器接入到以太网,进一步接入互联网。
Currently in the field of industrial control, single-chip microcomputer system mainly through RS232, RS485 and CAN bus protocol communications, they can not be directly connected to the Internet, so the system is in a state of isolation and the Internet. These systems are widely used in low-cost 8-bit MCU, which generally has a single-chip RS232 asynchronous serial communication interface, to access to the Internet must be communication interface transformation, such transformation is not only the physical interface transformation, more crucial is the transformation of data format and communication protocol conversion. In this paper, a RS232 serial communication interface with RJ45 Ethernet interface converter design, the existing single-chip microcomputer system via the access to Ethernet converter, and further access to the Internet. (2008-06-07, PDF, 1864KB, 下载88次)
[文章/文档] HDLCodingStyle
verilog硬件描述语言编程规范，描述如何使你编写的代码的可读性更高，可用性更强，并且使你在编程过程中少犯一些低级错误。
Verilog hardware description language programming standard, and describe how you prepared to make the code more readable, more availability, and will enable you to the programming process less committed some minor errors. (2006-03-21, PDF, 62KB, 下载156次)
[文章/文档] 500
本书中的问题，是软件业人士在面试时常问的，其中大多数出自微软公司，也有一些来自世界500强公司中的其 他公司。其实道理是相通的，认真领会，加以变通，当你读完全书时，你会发现你已经找到了一块进入外企的 敲门砖。作者布莱尔·沃森25年来一直做为世界500强公司的面试官，首次揭秘对答的所有问题和成功应试的秘诀。
the book issue is the software industry often asked in interviews, most of which come from Microsoft, some from the world's top 500 companies in the other companies. Actually, the reason is the same, to comprehend, to be flexible, when you finish the book, you will find that you have found a passport to enter the 23,000. Author Bulaierwosen 25 as has been the world's top 500 companies, either, for the first time displayed the enthusiasm of revealing all the problems and taking the secret of success. (2006-03-07, PDF, 379KB, 下载53次)