As the third section is related with foundation fieldbus , the characteristics , architecture and function block of it is expatiated in this section . in the third section , i discuss the disadvantages of using wire media as physical layer media in traditional fieldbus on the basis of the first two section , and present a solution of substituting wireless bluetooth ? for wire media . in this solution the bluetooth ? gateway is presented by integrating bluetooth ? and fieldbus , the data collected by bluetooth ? sensor is transported to ff hse fieldbus by bluetooth ? gateway , and the control logic of ff hse fieldbus is realized by the same bluetooth ? gateway 在这种有线介质替代解决方案中，将蓝牙技术与现场总线技术相结合提出了蓝牙网关的概念，现场蓝牙传感器采集的现场数据通过蓝牙网关应用传输到ffhse现场总线上，同时ffhse现场总线上的控制逻辑也可以通过蓝牙网关来实现，从而实现了无线蓝牙网络与有线ffhse现场总线的互连，同时在该部分中还对蓝牙网关应用的设计和实现进行了阐述。
When transmitting or receiving data from moving machine part , it is of great advantage to use wireless communication . in the future , machines assembling products might be able to communicate with the product without physical connection during the assembly sequence , performing tests and downloading software to the products 未来，蓝牙还可以用到流水线上对产品的操作，通过蓝牙无线指令传输，生产机器将不必通过直接的接触，而可以在有效的距离范围内，对产品进行远程的测试或驱动软件的加载。
