The paper introduces a temperature control systembased on AT89C51 single-chip-microprocessor, and discussesthe principle , hardware structure, and software design of thissystem in detail.
This paper introduces a SF vector control system of a slip frequency controlled induction mo-tor with simple structure,fair performance and convenient operation.It is realized by two singlechip microprocessors and fed...This paper introduces a SF vector control system of a slip frequency controlled induction mo-tor with simple structure,fair performance and convenient operation.It is realized by two singlechip microprocessors and fed from SPWM-GTR inverter.The whole system is combined by twosubsystems,both of them are 8031 single chip microprocessors.The communication between themis coordinated by the full duplex serial port within the chip and ask-and-answer communicationmanner.The error-corrected means adopted has improved the operation reliability of the system.A series of experimental results on a 3 kW induction motor are given at the end of this paper.展开更多
This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, read...This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, reading the key value, interruption service, reading file and displaying file. In order to strengthen the commonality and practicability of the system, SD card is used to store the materials and the ZNFAT32 file system is transplanted to organize the materials in the form of file directory. This interactive system can recognize and perform music automatically for the users and play significant role in education and entertainment.展开更多
文摘The paper introduces a temperature control systembased on AT89C51 single-chip-microprocessor, and discussesthe principle , hardware structure, and software design of thissystem in detail.
文摘This paper introduces a SF vector control system of a slip frequency controlled induction mo-tor with simple structure,fair performance and convenient operation.It is realized by two singlechip microprocessors and fed from SPWM-GTR inverter.The whole system is combined by twosubsystems,both of them are 8031 single chip microprocessors.The communication between themis coordinated by the full duplex serial port within the chip and ask-and-answer communicationmanner.The error-corrected means adopted has improved the operation reliability of the system.A series of experimental results on a 3 kW induction motor are given at the end of this paper.
文摘This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, reading the key value, interruption service, reading file and displaying file. In order to strengthen the commonality and practicability of the system, SD card is used to store the materials and the ZNFAT32 file system is transplanted to organize the materials in the form of file directory. This interactive system can recognize and perform music automatically for the users and play significant role in education and entertainment.
