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Description :

　　The principle and characteristics of power line carrier communication: 1. Power line carrier communication refers to the technology of using existing power lines to transmit analog or digital signals at high speed through carrier methods. The most basic task in power line carrier communication systems is to select different modulation methods according to the different communication channels.

　　2. Generally speaking, baseband signals contain DC components and lower frequency components, which cannot be directly transmitted as transmission signals in the channel. Therefore, it is necessary to convert the baseband signal into a bandpass signal (modulated signal) that is very high relative to the baseband frequency to be suitable for channel transmission.

　　3. The quality of a communication system largely depends on the modulation method used. In order to match the signal characteristics with the channel characteristics during modulation, the choice of modulation method is determined by the channel characteristics in the system. Obviously, different types of channel characteristics will correspond to different types of modulation methods.

　　Tianlian telephone cable HYA535 * 2 * 0.5, welcome to call

　　Advantages of power line broadband carrier communication method: 1. Broadband carrier is based on widely validated TCP/IP network technology, with complete link layer and network layer data protection and verification, far from being comparable to various lightweight node organization and relay algorithms.

　　2. Broadband carrier communication has a high speed and can complete data transmission in a very short time, greatly reducing the impact of sudden interference. Even if communication fails once, it can be quickly resent to ensure data reliability.

　　3. Most broadband carrier chips are manufactured based on high-performance 32-bit cores and DSP technology, which have advantages in both technical level and performance.

　　4. In addition to data encryption at the application layer, broadband carriers support high-strength encryption algorithms such as DES, 3DES, AES at the link layer, ensuring high data communication security.

　　5. Even in communication distances where narrowband carriers have advantages, broadband carriers can fully meet the application needs of most areas through high-performance modulation methods such as OFDM and a well-established relay networking mechanism.

　　6. Broadband carrier communication has high performance, fast speed, and strong scalability, and can load various network applications. However, its cost has not increased much compared to narrowband carriers, making it cost-effective.

　　Tianlian telephone cable HYA535 * 2 * 0.5, welcome to call

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