Prev

Next

What are the wireless connection technologies of the... Internet of things (iot) applications have been deeply rooted in our lives. The E-Lins H685 industrial-grade router is a small industrial-grade wireless router with single or double LAN ports. TDD/ fdd-lte, 4G, 3G, GPRS network optional. Besides, what are the wireless connectivity technologies for the Internet of things?   1....

更多文章

The use of industrial wireless routers Industrial-grade wireless router adopts high performance 32-bit industrial-grade ARM9 communication processor, which is widely used in finance, electric power, postal, water conservancy, environmental protection, meteorology and other industries.   Industrial router is mainly used in intelligent transportation,...

更多文章

Cascade and stack of industrial-grade 4G routers The most basic star Ethernet architecture, the actual star enterprise network may be much more complex than this. This renaturation is not only reflected in how high-end network equipment, how complex configuration, more importantly, the performance of network switching level is more complex. Industrial routers and firewalls...

更多文章

The difference between 4G router and 4G DTU 4G industrial wireless router and 4G DTU are also used for wireless network data transmission of industrial equipment. But there are also significant differences between the two, and the differences between the two are mainly from the appearance of the interface, the use of methods and the application environment.   1....

更多文章

Characteristics and differences between RS485 and RS232 RS232 and RS485 have always been the weak current common interface, but there are a lot of people do not understand the difference between them is not very thorough.   I. overview of RS485   RS-485 serial bus is widely used when the communication distance is tens of meters to thousands of meters. RS-485...

更多文章

twitter

工业4g路由器上装载各种应用软件相关的问题

文章目录 : 产品文章

与软件有关的问题

* 软件的重要性

过去,工业路由器被看作是最佳转发数据包的硬件设备,软件仅提供监视器的功能。但随着工业级路由器的发展,软件在工业无线路由器中起的作用越来越大。实际上,实时操作系统(如,通信领域常用PSOS和VxWorks)的选择对一个通信产品来说是至关重要的。如果要开发效率很高的软件,需要操作系统厂商的支持。就是自己开发专用的工业级无线路由器操作系统以及应用软件。如果这种趋势继续发展,终端用户将来可以很方便地在工业4g路由器上装载各种应用软件模块,使工业级4g路由器能够提供防火墙、流量管理策略、特殊应用信令、路由策略等功能。

* 网管系统

目前的网管协议是简单网管协议版本2.0(SNMPv2,Simple Network management Protocol v2.0),在TCP/IP协议中用UDP协议实现。由于工业LTE路由器在体系结构上的变化,使得一些网管信息需要由底层的硬件来提供,这一点和以前的实现方法是不同的。这里的工作主要是通过网管功能和管理信息数据库(MIB-Management Information Base)的实现来给网络管理者提供充足的管理信息和强大、灵活的管理功能。全网4g通路由器

* 计费

对用户的全网通工业级路由器数据流量进行计费需要提取IP包的地址、端口、CoS等信息,由于端口速率很高,这部分信息的数据量也是比较大的,如果在接口板上进行处理很不现实。而且,不同的ISP收费的标准很可能是不一样的。因此,应该将计费功能分离出去,工业级LTE路由器接口板只负责提供一个计费信息的接口,把计费信息送出来。之后,可以将这些数据写到外部存储设备,由专门的机器进行计费处理。这样将减轻工业全网路由器的负担,计费功能的实现也更加灵活。

* 配置

工业级全网路由器的配置是一项非常重要而又较困难的工作,一旦出现错误配置,不但难以发现,而且会出现一些难于琢磨的性能问题。随着工业全网通路由器技术的发展,其配置会越来越简单和有效,这个问题的完善解决将是一个长期的工作。

* 软件的稳定性

大家知道,工业级全网通路由器的硬件可以用热备份、双电源供电、数据通路备份等方法来提高稳定性,但对于全网通工业路由器软件的稳定性则是一个较难解决的问题。一个大网络系统的稳定性的前提条件是软件的稳定性。软件稳定性的难点在于软件的状态均受不同软件相互作用的影响。4g无线路由器

发表评论

You must be logged in to post a comment.