The design of the power line carrier communication system was introduced in this paper,DSP was adopted as the hardware platform to complete the core task.DSP sending terminal delivered the collecting data to the DSP r...The design of the power line carrier communication system was introduced in this paper,DSP was adopted as the hardware platform to complete the core task.DSP sending terminal delivered the collecting data to the DSP receiving terminal through the power line carrier, and the DSP receiving terminal send the data to PC through a serial port.The design improved the power line carrier communication system and the data transmission became faster and more reliable.The experiment results showed that the PER of the receiving data is less than 0.4%, which satisfied the power line carrier communication requirement Our design is feasible and effective.展开更多
When solving the routing problem with traditional ant colony algorithm, there is scarce in initialize pheromone and a slow convergence and stagnation for the complex network topology and the time-varying characteristi...When solving the routing problem with traditional ant colony algorithm, there is scarce in initialize pheromone and a slow convergence and stagnation for the complex network topology and the time-varying characteristics of channel in power line carrier communication of low voltage distribution grid. The algorithm is easy to fall into premature and local optimization. Proposed an automatic network algorithm based on improved transmission delay and the load factor as the evaluation factors. With the requirements of QoS, a logical topology of power line communication network is established. By the experiment of MATLAB simulation, verify that the improved Dynamic hybrid ant colony genetic algorithm (DH_ACGA) algorithm has improved the communication performance, which solved the QoS routing problems of power communication to some extent.展开更多
随着农村电网建设的不断发展,电力线载波通信(Power Line Communication,PLC)技术因无须额外布线、可靠性高、适应性强等优点,在农村电网中的应用逐渐增多。文章主要探讨基于电力线载波通信技术的农村电网电表集抄系统的设计,重点分析...随着农村电网建设的不断发展,电力线载波通信(Power Line Communication,PLC)技术因无须额外布线、可靠性高、适应性强等优点,在农村电网中的应用逐渐增多。文章主要探讨基于电力线载波通信技术的农村电网电表集抄系统的设计,重点分析系统架构设计、数据采集模块设计、数据传输模块的设计、数据处理与分析模块的设计以及管理中心设计,最后通过实验测试验证了系统在实际应用中的可行性与性能表现。展开更多
针对偏远油气田现场没有电信网络覆盖,导致现场数据无法采集回传,作业现场管理存在盲区,依赖移动通信网络进行的过程控制系统PCS(Process Control System)巡检作业无法使用等问题,提出了不同生产场景下利用通信新技术解决偏远油气田现...针对偏远油气田现场没有电信网络覆盖,导致现场数据无法采集回传,作业现场管理存在盲区,依赖移动通信网络进行的过程控制系统PCS(Process Control System)巡检作业无法使用等问题,提出了不同生产场景下利用通信新技术解决偏远油气田现场数据传输的方法,包括电力线载波、无线微波、NB-IOT、LORA、北斗卫星、高通量卫星等传输方式,结合生产现场实际情况,对每种技术的适用场景、成本效益以及可能的局限性进行了综合评估,得出了在不同应用场景下最适合的通信技术方案。结果表明,采用通信新技术可以快速解决不同偏远生产现场的传输难题,降低传输成本,为企业数字化发展助力。展开更多
针对中压电力载波通信中由电力线信道的复杂特性和动态噪声环境导致的数据传输效率低下、抗干扰能力弱以及信号传输可靠性差的难题,将数字信号处理(digital signal processing,DSP)作为中压电力载波通信系统的核心控制单元,结合正交频...针对中压电力载波通信中由电力线信道的复杂特性和动态噪声环境导致的数据传输效率低下、抗干扰能力弱以及信号传输可靠性差的难题,将数字信号处理(digital signal processing,DSP)作为中压电力载波通信系统的核心控制单元,结合正交频分复用(orthogonal frequency division multiplexing,OFDM)模块和长短期记忆(long short-term memory,LSTM)网络信道噪声模型设计,实现了一种高度集成且智能化的通信技术系统。该系统能够根据电力线信道的复杂特性和动态变化的噪声环境,通过合理分配子载波资源、高效调制解调和实时噪声预测与抑制,显著提高通信系统的频谱效率、抗干扰能力和信号传输的可靠性。实验结果表明,该设计的平均绝对百分比误差(mean absolute percentage error,MAPE)仅为10.62%,均方根误差(root mean square error,RMSE)仅为7.20%。所提系统为中压电力载波通信提供了一种高效、精确的解决方案,有助于推动智能电网、远程监控等领域的进一步发展。展开更多
文摘The design of the power line carrier communication system was introduced in this paper,DSP was adopted as the hardware platform to complete the core task.DSP sending terminal delivered the collecting data to the DSP receiving terminal through the power line carrier, and the DSP receiving terminal send the data to PC through a serial port.The design improved the power line carrier communication system and the data transmission became faster and more reliable.The experiment results showed that the PER of the receiving data is less than 0.4%, which satisfied the power line carrier communication requirement Our design is feasible and effective.
文摘When solving the routing problem with traditional ant colony algorithm, there is scarce in initialize pheromone and a slow convergence and stagnation for the complex network topology and the time-varying characteristics of channel in power line carrier communication of low voltage distribution grid. The algorithm is easy to fall into premature and local optimization. Proposed an automatic network algorithm based on improved transmission delay and the load factor as the evaluation factors. With the requirements of QoS, a logical topology of power line communication network is established. By the experiment of MATLAB simulation, verify that the improved Dynamic hybrid ant colony genetic algorithm (DH_ACGA) algorithm has improved the communication performance, which solved the QoS routing problems of power communication to some extent.
文摘随着农村电网建设的不断发展,电力线载波通信(Power Line Communication,PLC)技术因无须额外布线、可靠性高、适应性强等优点,在农村电网中的应用逐渐增多。文章主要探讨基于电力线载波通信技术的农村电网电表集抄系统的设计,重点分析系统架构设计、数据采集模块设计、数据传输模块的设计、数据处理与分析模块的设计以及管理中心设计,最后通过实验测试验证了系统在实际应用中的可行性与性能表现。
文摘针对偏远油气田现场没有电信网络覆盖,导致现场数据无法采集回传,作业现场管理存在盲区,依赖移动通信网络进行的过程控制系统PCS(Process Control System)巡检作业无法使用等问题,提出了不同生产场景下利用通信新技术解决偏远油气田现场数据传输的方法,包括电力线载波、无线微波、NB-IOT、LORA、北斗卫星、高通量卫星等传输方式,结合生产现场实际情况,对每种技术的适用场景、成本效益以及可能的局限性进行了综合评估,得出了在不同应用场景下最适合的通信技术方案。结果表明,采用通信新技术可以快速解决不同偏远生产现场的传输难题,降低传输成本,为企业数字化发展助力。
文摘针对中压电力载波通信中由电力线信道的复杂特性和动态噪声环境导致的数据传输效率低下、抗干扰能力弱以及信号传输可靠性差的难题,将数字信号处理(digital signal processing,DSP)作为中压电力载波通信系统的核心控制单元,结合正交频分复用(orthogonal frequency division multiplexing,OFDM)模块和长短期记忆(long short-term memory,LSTM)网络信道噪声模型设计,实现了一种高度集成且智能化的通信技术系统。该系统能够根据电力线信道的复杂特性和动态变化的噪声环境,通过合理分配子载波资源、高效调制解调和实时噪声预测与抑制,显著提高通信系统的频谱效率、抗干扰能力和信号传输的可靠性。实验结果表明,该设计的平均绝对百分比误差(mean absolute percentage error,MAPE)仅为10.62%,均方根误差(root mean square error,RMSE)仅为7.20%。所提系统为中压电力载波通信提供了一种高效、精确的解决方案,有助于推动智能电网、远程监控等领域的进一步发展。
