| 1. | It is composed of master , relay unit and module unit
控制系统由上位机、中继单元和模块单元构成。 |
| 2. | The operation consists of eliminating the sensor and checking for dampness in the area of the engine relay unit
此预防性操作包括拆除此传感器及检查发动机继电器单元周围湿度两部分。 |
| 3. | Therefore , this paper presents canbus technology and designs a transformer relaying unit including protecting and monitoring functions
因此，本文提出了基于can总线技术的、保护监控功能较为完善的变压器综合保护装置。 |
| 4. | The master communicates with the relay unit by serial communication interface and the relay unit communicates with module unit by wireless communication network
上位机和中继单元之间采用串行口通信,中继单元和模块单元之间采用无线网路进行通信。 |
| 5. | 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管理单元dep 550管理机是一套通讯管理系统，它对保护装置进行监视，把保护装置送上来的信息传给微机监控系统，并接受监控系统的命令，进行相应的数据交换。 |
| 6. | 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单片机为核心设计了中继单元和模块单元控制电路;详细分析了无线通信模块的工作原理、控制方式,并计算了无线模块的通信距离;在硬件的基础上设计了包括上位机、中继单元和模块单元在内的软件系统。 |
