master relay 中文意思是什麼
master relay
解釋
重繼電器-
The presented insulating lift adopts the traditional scissor structure, and is actuated by the master - slave voussoir and horizontal slide block with relay style
該絕緣升降平臺採用傳統的剪叉式結構，以及絕緣主從楔塊驅動和水平驅動相互接力交替作用的驅動方式。 -
Being master control part, user controller stores, manages, display and query user information ; as slave control part, sub - user controller calculates and temporarily stores power sent from measuring module ; measuring module measures electric energy by using power meter ' s special circuit which simplifies circuit design and connects or breaks up power supply circuit by relay ; in order to transmitting data fast and exactly, rs - 485 communication standard is adopts between user controller and sub - user controller
主控部分用戶控制模塊可存儲、管理、顯示和查詢用戶電能信息；從控部分子用戶控制模塊計算並暫存電能測量模塊輸出功率數據；電能計量模塊採用電度表專用厚膜電路hdb6進行電能計量，簡化了電路設計，同時還利用繼電器控制連接或斷開用戶的供電迴路；在主從部分間採用rs - 485通信標準實現數據快速、準確的傳輸。 -
It supervises all the protection relay units, transmits all the messages to master stations or local scada system, receives commands from master stations or local scada, and exchange data with other intelligent electronic devices
4dep 550管理單元dep 550管理機是一套通訊管理系統，它對保護裝置進行監視，把保護裝置送上來的信息傳給微機監控系統，並接受監控系統的命令，進行相應的數據交換。 -
The effect of relay trial teaching after individual teaching skill practising is to master systimatically the usage of each teaching skill in class, and to combine skills with the contents and targets of the teaching as to correct and improve the students trail teaching and each others remarks
在完成單項教學技能訓練的基礎上進行接力試教的作用在於，系統把握各項教學技能在實際教學中的運用，把技能與完整的教學內容與教學對象結合起來，通過小組學習的互相評價以達到有效的修正、提高。 -
It is composed of master, relay unit and module unit
控制系統由上位機、中繼單元和模塊單元構成。 -
The master communicates with the relay unit by serial communication interface and the relay unit communicates with module unit by wireless communication network
上位機和中繼單元之間採用串列口通信，中繼單元和模塊單元之間採用無線網路進行通信。 -
The principle and control method of the wireless communication network were introduced detailedly. and the communication area was computed too. and then the software system which includes master, relay unit and module unit was designed on the basis of hardware
以pic16f877a單片機為核心設計了中繼單元和模塊單元控制電路;詳細分析了無線通信模塊的工作原理、控制方式，並計算了無線模塊的通信距離;在硬體的基礎上設計了包括上位機、中繼單元和模塊單元在內的軟體系統。
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