Design Of Intelligent Instrument Interface Based On ARM

With the advent of the information age, the increasingly high demand for theinstrument, the instrument requires both work reliably, and accept outside instruction,but also with a remote control and data processing capabilities, intelligent instrumentsappear in this context. In recent years, the smart meters develop particularly rapid.The domestic market has seen a variety of smart meters, for example, the orificeflowmeter can automatically compensate smart differential pressure, the program canbe temperature-controlled multi-stage intelligent temperature control instrument, andcan achieve a variety of complex digital pid control regular smart regulator, and theintelligent chromatograph can analyse and deal with various data processing.Internationally species is extremely smart meters wide, for example, the United Stateshoneywell manufactured dcta-1004series of intelligent control device, can accuratelymeasure temperature, but also the temperature of the transmitter itself, the pressure tocomplete the automatic compensation, which accuracy can reach0.1%fs; U.S.rmcy-dene’s8292high-precision pressure table, the use of energy embeddedprocessors to remove the device when the voltage across the energy generated by themeasured voltage can be as low-60db.Smart meter is a combination of computer science, electronics, digital signalprocessing, artificial intelligence, vlsi and other emerging technologies withtraditional instrumentation technology. With the development of ASIC, personalequipment and other related technologies, smart meters will be more widely used. Asa core component of microprocessor smart meter technology is the driving force topromote the smart meter to small, multi-functional, more flexible direction. It isanticipated that the various functions of smart meters in the near future will be widelyused in all areas of society.Along with the rapid development of network technology, internet technology ispermeating gradually to industrial control system design and intelligent fieldinstrument, the intelligent instrument containing the IP address will become the newcutting-edge trends of the information technology.Traditional smart meter has a lot of flaws, many of which are no wirelesstransmission capability. To improve this situation, the paper detailed study of the traditional smart meters, and in its foundation, designed and developed for this studysmart meter interface circuit, in order to reflect the smart meter wireless transmissionfunction, design the GPRS Interface, ZIgbee interface Bluetooth interface. Details areas follows:Deeply studied the of the microprocessor architecture of ARM、the developmentprocess and development model. Studied the internal structure of the S3C2410Amicroprocessor used in this paper, the relevant knowledge of the processor mode andthe addressing mode.Studied the GPRS protocol works, communication. According to S3C2410Ainterface configuration, designed GPRS module of the intelligent instrument.Studied ZIgbee protocol works, communication. According to the ZIgbeeS3C2410A configuration, designed ZIgbee module of smart meter.Studied the Bluetooth protocol works, communication. Combined S3C2410ABluetooth configuration, designed the Bluetooth module of intelligent instrument.