论文部分内容阅读
有一位从事工程的朋友,每遇到雷暴天气,就会失眠,因为珠三角地区很多楼盘的对讲系统都是他们在负责维护。那些经过了几年使用的模拟对讲机,就好比一个个地雷,不知道在哪个闪电之后就会突然瘫痪。对此,他也曾一次次咬牙咬牙切齿的说道“以后装对讲,只上数字产品”。众所周知,传统的模拟对讲产品由于自身的先天不足,导致远距离传输信号必然产生衰减,在大型小区联网中往往会出现占线情况。另一方面,因为模拟系统一般使用8位处理器,不能处理视频,开发相对容易,这也造成了行业进入门槛较低,成本更趋透明,厂家与工程商可操作的空间很小。而在项目施工中,管理中心一旦设置,所有的布线必须以此为中心,不能轻易迁移。
One friend who works on the project will suffer from insomnia whenever it encounters a thunderstorm because of the intercom system in many properties in the Pearl River Delta. Those walkie-talkies that have been used for years are like land mines and do not know which lightning will suddenly paralyze. In this regard, he also said time and time again, “After intercom, only digital products ”. As we all know, the traditional analog intercom products due to their inherent deficiencies, resulting in long-distance transmission of signals will inevitably produce attenuation in large cell networking often appear busy situation. On the other hand, because analog systems generally use 8-bit processors and can not process video, development is relatively easy. This also results in lower barriers to entry, more transparent costs, and less room for manufacturers and engineering operators to operate. In the project construction, management center once set, all the wiring must take this as the center, can not be easily relocated.