Understanding Smart Sensors - Nomads.usp

146 Understanding Smart SensorsThat allows new features to be easily added to an MCU with an integrated protocolas required for different applications. Also, a protocol can be easily added toan existing MCU design that will become part of a communication network.6.10 SummaryThe ability of sensors to communicate with other portions of the control systemwill allow more intelligence at the sensor node and more distributed control.Protocols that have available silicon solutions have a higher likelihood ofacceptance. Many types of standards have been developed; however, implementationoptions may limit their compatibility. An entirely new protocol developedfor sensor-specific applications would have to be well defined andaccepted by sensor users to justify the development cost necessary to implementthe protocol in silicon.References[1] Pullen, D., “Smart Sensors: Adding Intelligence to Transducers,” Proc. Sensors Expo West,San Jose, CA, Mar. 2–4, 1993, pp. 117–136.[2] Raji, R. S., “Smart Networks for Control,” IEEE Spectrum, June 1994, pp. 49–55.[3] Madan, P., “LonWorks Technology for Interfacing and Networking Sensors,” Proc.Sensors Expo, Philadelphia, Oct. 26–28, 1993, pp. 225–242.[4] Najafi, N., and K. D. Wise, “An Organization and Interface for Sensor-Driven SemiconductorProcess Control Systems,” IEEE Trans. Semiconductor Manufacturing, Vol. 3, No.4, Nov. 1990, pp. 230–238.[5] Bredius, M., F. R. Riedijk, and J. H. Huijsing, “The Integrated Smart Sensor (IS 2 ) Bus,”Proc. Sensors Expo, Philadelphia, Oct. 26–28, 1993, pp. 243–247.[6] Meisterfeld, F., “Chapter 26: Multiplex Wiring Systems,” Automotive Electronics Handbook,2nd ed., R. K. Jurgen (ed.), New York: McGraw-Hill, 1999, pp. 26.1–26.76.[7] Frank, R., and C. Powers, “Microcontrollers With an Integrated CAN Protocol,” Proc.Power Conversion and Motion, Sept. 17–22, 1994, pp. 1–10.[8] Terry, K., “Software Driver Routines for the Motorola MC68HC05 CAN Module,”Motorola AN464, 1993.[9] Lawrenz, W., and M. Pauwels, “OSEK/VDX—The Operating System for DistributedSystems in Cars,” Proc. Convergence 96, Dearborn, MI, Oct. 21–23, 1996, pp. 281–285.[10] Chatha, A., “Fieldbus: The Foundation for Field Control Systems,” Control Engineering,May 1994, pp. 77–80.