Research And Design Of Bridge Health Monitoring General-purpose Data Acquisition System

The development of human civilization and the development of transportation are closely related. Walk from the ancient times to the car, the airplane, the human transport has undergone enormous changes. Bridges, as the throat of modern transport, plays a very important role. However, when the bridge accident occurred, the alarm sounded to us, makes us aware of the importance of health monitoring. Since the1950s, the United States and Europe began to study the health monitoring of the bridge. To the present, the bridge health monitoring has the transition from the artificial, static measurement to automatic, real-time dynamic measurements can be said for the real-time early warning of the bridge has played a good role in promoting.From reality, this thesis summarizes some of the problems encountered by the bridge health monitoring, combined with the current level of technology, gets a generic health monitoring acquisition system design. In this thesis, the design of the program, full use of object-oriented programming thinking, combined with the characteristics of the health monitoring, implements a general-purpose data acquisition system; has a flexible and convenient, simple configuration, greatly reducing the risk of duplication of development; to ensure the reliability of the system, and enables developers to focus more on the reliability of the system. The objectives of the program is to enable the development and user of the health monitoring system separation, developers only need to focus on the system itself, improve the reliability and ease of use; or secondary development staff and user can complete the project conveniently.This thesis introduces the current development status of the bridge health monitoring system and the drawbacks firstly, followed by real-time operating system comparison, and ultimately chose the djyos; then, we described the design of hardware, gives more rationalization solution; after that, we described the ARM9transplantation on djyos; concludes with a description of the health monitoring system platform software development and configuration of software development.For the transplantation of OS, compared to uc/OS, the djyos is more complex. In this regard, We also described in detail the migration process of the djyos on ARM9. Compared to a lot of convenience in future applications, we invested in a one-time migration, it is very worthwhile.Health monitoring system platform software development part, related to the serial and A/D device-driven development in djyos, because of the features of djyos’s pan device driver, the driver can be more flexible to adapt to a wide variety of applications. This thesis also designed a simple handshake protocol used to configure the design of the configuration software.