工業(yè)自動化應用中數(shù)據傳輸?shù)哪芰坎杉?/p>

　　本文著眼于工業(yè)自動化網絡中數(shù)據傳輸系統(tǒng)的能量收集的詳細要求，將太陽能和熱能系統(tǒng)連接到低功率節(jié)點，以及不同協(xié)議對能量收集供應的影響。

　　它涵蓋了CAN和LIN協(xié)議，與LIN收發(fā)器芯片mcp202家族和NXP tja1015能設備，以及EnOcean edk312c，Cymbet CBC-EVAL-09熱能量收集開發(fā)包。它也涵蓋了德克薩斯儀器bq25504電源管理器件提供從能量采集源的收發(fā)器的權。

　　工業(yè)網絡收發(fā)器的電壓下降和功耗正在將能量收集帶到有線設備上?，F(xiàn)在，使用CAN和LIN工業(yè)協(xié)議的網絡可以利用能量收集技術在工廠樓層傳輸數(shù)據。這可能是為了降低能源成本或提供網絡節(jié)點而無需安裝新的電源線，因為這些網絡協(xié)議不支持與以太網供電（POE）相同的自供電方式。

　　Using energy harvesting with older generation devices has not been possible， and the 5 V and higher voltages， means the power consumption has been too high. As both CAN and LIN come from the automotive heritage， the original designs support voltages as high as 12 V， but the new process technologies are now driving the transceivers to 3.3 V and below. This heritage means that the protocols are robust and resistant to interference， and the devices are qualified for industrial temperatures.

　　However， this still means the energy harvesting system requires power management and some storage to take the input captured from thermal， vibrational or solar energy， and provide a high enough power output for the network node.

　　The different network protocols provide a range of advantages， from the low cost of LIN to the more flexible CAN.