Since the 1980s， high-tech sweeping the globe， networking， communications， information processing， artificial intelligence and multimedia at the core of information technology has become a world economic and technological development of high With the rapid development of the Internet and universal application， Internet-based computer accounting information system has now become the inevitable trend of development， in the face of open systems on the Internet， sharing， the dispersion characteristics of accounting information to the computer system of internal controls brings new problems and Therefore， how to establish an effective information system computer accounting system of internal controls to prevent computer network environment of the new accounting information system it is necessary to Computer accounting information system to the deep-seated further development， these changes will undoubtedly bring to the enterprise has been of enormous benefit， but also for internal control brings new problems and On the network environment， the handling business transactions and related operating procedures must rely on the good computer information systems， information systems of internal control is good or bad， it will directly affect the operation and development of The role of internal control is to achieve efficient enterprise management objectives to provide reliable financial statements and information， and to ensure that all procedures are in compliance with the relevant laws and Text to the computer network environment accounting information systems internal control system and risk the problems depth analysis of network environments prevent risk and innovation accounting computer information systems internal control system 希望能够对你有帮助！
Along with the development of science and technology， intelligent and automation technology is more and more popular， all kinds of hi-tech also widely used in intelligent robot toy car and manufacturing field， make intelligent robot more and more Intelligent car is a variety of high-paying technology integration body， it incorporates mechanical， electronic， sensors， computer hardware， software， artificial intelligence and many other subject knowledge， can involves many of today's current areas of This car design mainly by the single chip microcomputer control system module， manostat module， motor driver module， infrared inspection module and to the wireless digital module composition， system to C8051F340 microcontroller as the core， set to foreign control， use linear regulator chip to voltage stability of control for single chip microcomputer and other peripherals for the reliable power supply， using infrared to the module black and white signal detection， use L298N motor driver module to the dc speed-down motor stability control， use light coupling strength chips for electrical isolation of control， eliminate interference， the use of wireless digital module CC1101 for two car The intelligent design two cars are from the start to car， overtaking alternately lead， lead a circle overtaking about 27 Key words: C8051F340 infrared to the dc speed-down wireless digital overtaking lead
