The Site Classification Instrument Design Based On MCU

The site conditions have an important impact to the measures seismic building taken by many factors, so how fast and accurate to the design of categorization for the site building is an important task. Since the much conditions of affecting categorization, by the means the current code for seismic design of buildings, generally select two to three conditions to be considered as a basis for site classification. The topics selects the two conditions of the equivalent shear wave velocity vsc and the thickness of overlaying layer dov as the basis for site classification.And based on the micro-controller, the topic designs a handheld instrument construction site classification. In the engineering staff need to determine site characteristics, as long as the input two parameters of the equivalent shear wave velocity vse and the thickness of overlaying layer dov, you can directly obtain the site classification desiredIn the paper of the author of microcontroller-based site classification instrument design issues as background, through classification based on fuzzy membership function of the two-dimensional feature creation, made a portable site classification instrument. Subjects completed the following tasks:(1) This article gives the design purpose, signi ficance and status-quo of research at home and abroad about the design of site classification instrument based on MCU.(2) Discusses the key technologies required for the project. First introduce the design scheme of the system hardware and the required core hardware features; Secondly, introduce the design scheme of the software system and architecture(3) Complete the design of the site classification instrument based on MCU, including the hardware system and the software system. The system uses the modular design approach, to facilitate future upgrades and maintenance. The hardware system design include the selection of hardware systems, and the design of the MCU control board and auxiliary ci rcute, power supply system design, the keyboard module design, LCD module design, communication interface design, etc. The software system design introduces the designing idea and the implementation for each functional subroutine, introducing details of the two-dimensional membership function based on the fuzzy classification. Finally realize the four different values under standard site soil membership vector μ data acquisition and distinguish the types of venues according to the membership drawn vector μ values, through the process to achieve two-dimensional membership function of the equivalent shear wave velocity vse and thickness of overlaying layer dov two parameters.(4) Complete the simulation debugging of the hardware and software systems, on this basis, produce a site classification handheld device, and make examples of the application of engineering analysis, the results show that the seismic design specification resultsThe site classification based on single chip device has the characteristics of a simple structure, small size, easy to carry. At the meantime, the topic makes some exploration to the new site classification instrument.