51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Sunday, October 26th, 2008 at 11:10 | No comments

Categories: Communication Networks

Tags: AT89C51, CAN main line, elevator, PCA82C250, Serial communication, supervisory system

Short Content: Abstract: Based on the CAN bussing technique, take AT89C51 as the core, uses Intel82526 and the PCA82C250 constitution elevator supervisory system, through the master-control unit and the sedan theater box, correspondence between the entrance hall controller's, has completed to the elevator the control, and may carry on the long-distance monitoring. The conflict which appears to the communication in uses the non-destructive arbitration the method solution. Key word: CAN main line; Serial communication; Elevator     In the modern society, the ...

Tuesday, October 21st, 2008 at 16:04 | No comments

Categories: SCM

Tags: Chooses the test platform, clear, supervisory system

Short Content: Abstract: Introduced controls based on the monolithic integrated circuit chooses the test platform supervisory system's principle of work clear, and discusses the system hardware and the software emphatically realizes the method. The system uses take 8051 monolithic integrated circuits as the core control system, disposes by parts and so on A/D switch, control circuit, monitor as well as exterior data-carrier storage, thus realizes chooses the test platform clear to the air current current capacity, the speed, the direction as well ...