基于UWB的车身结构应变无线数据采集系统(硬件部分)设计(英文版)

基于UWB的车身结构应变无线数据采集系统(硬件部分)设计(英文版)(任务书,开题报告,文献摘要,外文翻译,论文13000字,CAD图纸2张)
Abstract
Measuring the strain of the body structure of uavs in off-road environment is the basis to ensure the reliable work of uavs and to optimize the structure of uavs. The goal of this project is to design a body structure strain wireless data acquisition system based on ultra-wideband wireless communication technology UWB, which USES the strain gauge pasted on the body to measure the deformation of the car body in real time, and send it to the top position wirelessly to complete the data storage, display and processing.
The scope of knowledge involved in this topic: theoretical mechanics, material mechanics, computer technology, testing technology, electrical and electronics, software design and development, etc.
The main work contents of this project include:
1. Data collection and program demonstration;
2. Design circuit schematic diagram and PCB diagram, and make measurement nodes;
3. Completed the strain simulation of vehicle structure under different driving conditions, and designed the layout scheme of measuring points.
Key words: strain test; UWB; PCB. The finite element.
Catalogue
Chapter one Introduction    3
1.1 The introduction    3
1.2 UWB technology and its application    3
1.2.1 UWB overview    3
1.2.2 Technical features of UWB    4
1.2.3 main applications of UWB technology    6
1.2.3.1 Military applications    6
1.2.3.2 Civil applications    6
1.2.4 Development strategy and direction of UWB technology    8
1.3 Research content and chapter arrangement of this paper    9
The second chapter is the design of data acquisition and wireless transceiver node    11
2.1 overall framework of the system    11
2.2 strain measurement system based on Wheatstone bridge    11
2.2.1 definition and interpretation of Wheatstone bridge    12
2.2.2 calculation of resistance bridge correlation    13
2.3 Data acquisition system based on high-precision signal conditioning chip    14
2.4 Wireless transceiver system based on UWB    17
2.4.1 DW1000 chip overview    18
2.4.2 Architecture of DW1000 chip    18
2.5 Key chip selection of other chips    22
2.5.1 Microcontroller chip STM32F103C8T6    22
2.5.2 dual output linear voltage regulator chip XC6401    28
2.5.3 level conversion chip MAX3373    29
Chapter three Design of hardware circuit of data acquisition and wireless transceiver node    31
3.1 introduction to circuit design software Altium Designer    31
3.1.1 overview of Altium Designer    31
3.1.2 basic steps and methods of schematic diagram design    32
3.1.3 basic steps and methods of PCB diagram design    34
3.2 basic circuit schematic design    34
3.2.1 MCU and its peripheral circuits    34
3.2.1.1 MCU circuit design    34
3.2.1.2 crystal oscillator (clock) circuit    36
3.2.1.3 reset circuit    36
3.2.1.4 programming interface circuit    37
3.2.1.5 serial port and USB interface circuit    37
3.2.2 signal conditioning circuit    38
3.2.3 level switching circuit    39
3.2.4 wireless transceiver circuit    39
3.2.5 power circuit    40
3.3 circuit schematic diagram    41
3.4 PCB diagram of circuit    43
Chapter four finite element simulation analysis of trussed body    47
4.1 introduction to trussed body    47
4.2 introduction to finite element simulation software ABAQUS    48
4.3 truss body stiffness and modal analysis    50
4.3.1 determine the load under different driving conditions    51
4.3.2 body strength and stiffness simulation and result analysis    53
4.3.3 body mode simulation and result analysis    58
Chapter five work summary and outlook    62
Acknowledgement    65
Reference    66