Based On Arm And Uclinux Embedded Measurement And Control Instruments

In the industrial production, two Process Automation Instrumentation constitutes one of automated system basic units.Our country's unit measuring appliance oneself complete basically by the DDZ-III appliance to based on 8 or 16 MCU into foundation design digitized measuring appliance transformation.As a result of the conventional MCU resources limit, basically substitutes electrically operated take the monolithic integrated circuit as the foundation design unit measuring appliance in the function DDZ-ⅢMeasuring appliance, and according to the DDZ-ⅢThe function carries on the classification.Like this creates the domestic Process Automation Instrumentation manufacturer production two digitized measuring appliance variety to be numerous and diverse, the standard unifies with difficulty, the design capriciousness is big.Therefore brings the following realistic question:1. automated system designing department's measuring appliance shaping, the system debugging, the use operates, the service and the system function optimization and the spare parts preparation unusual is not convenient;2. measuring appliance manufacturer volume production difficulty, the product quality enhancement and the cost save disadvantageously;3.Domestic present Process Automation Instrumentation factory quantity is multitudinous, but all is unable to form the scale production, the quality is not good, but the overseas import two measuring appliances often attach in the specific collection and distribution system, also has the standard not to be unified, nimbly replaces with difficulty the question, also the price is expensive.The automated system design, the production and the application urgent need one kind of easy to operate, the versatile strong intelligence two measuring appliances, solve the above problem, the change tradition design, the production and the application way, this will be the future Process Automation Instrumentation trend of development, also is this topic diligently the direction.The present paper is precisely in view of the above question, take designs one kind to be possible the nimble configuration general intelligence two measuring appliances as the object of study, in the thorough analysis domestic mainstream measuring appliance factory measuring appliance operating mode and in the measuring appliance function foundation, carries on the software and hardware design reasonably, for realized many kinds of measuring appliance function under the identical hardware platform to carry on the innovation and the exploring research.The primary content is:1.each kind of conventional two measuring appliance functions, standard, wiring, operation custom and structure way classification analysis;2.signal multi-measuring range flexibility measuring technique research;3.system design and the reliable design of system;4.U-BOOT to ARM transplant, uClinux to ARM transplant, general configuration software design based on uClinux.This article has designed one kind take samsung Corporation's ARM7TDMI series processor S3C44B0X as a core, auxiliary by periphery electric circuit, under realization identical hardware platform many kinds of measuring appliance function, and we has manufactured the sample system .This article discusses is suitable similarly based on S3C44B0X and the uClinux intelligent measuring appliance system development technology for other project development, has the important reference value to other embedded application system development.