| With the development of computer, Internet and communication technology, embedded system technology has developed rapidly. With small size, low power dissipation, high performance, dependability and outstanding characteristics of the sector application, the embedded system at present has been widely applied to the military national defence, electron, network communication, industrial control, etc. Following the arrival of Cybertimes, it will become the mainstream in the application of advanced embedded 32-bit microprocessor, among which the microprocessor taking ARM as kernel is a kind of widely used chip (RISC) with high performance, low power consumption.This dissertation focuses on the embedded monitoring platform based on ARM as the kernel, discussed the hardware and software structure. On the basis of expandable CAN interface of ARM chip, we structure the network embedded intelligent monitoring node of CAN, realize the data share among the nodes and data communication between the nodes and the location machine, which have improved the real-time character and dependability of the monitoring system.The major innovations in this article are as follows:1. According to the request of embedded monitoring system, the chip LPC2119 of 32-bit ARM7 was chosen as the master controller to finish the systematic hardware circuit design. The embedded operating system -μC/OS-Ⅱ was introduced in the system, which realize transplantation of μC/OS-Ⅱ under the compiling environment of ADS. After the transplanted codes passed the testing, we set up monitoring system task and finish task scheduling through μC/OS- Ⅱ.2. Establish the local control network using ARM7 chip with CAN controller, which makes full use of the advantages of 32-bit controller, and realize the network communication of CAN based on ARM3. Application of the embedded monitoring system in the hardware-in-loop... |
