Seismic Monitoring of Rivers and Streams Proposal Senior Design - - PowerPoint PPT Presentation

Seismic Monitoring of Rivers and Streams

Proposal – Senior Design Group 142

Tuesday, December 14, 2010

Project Members

Students: Wei Yu (Electrical Engineering) Ayodele Asaolu (Electrical Engineering) Muhammad U. Khokhar (Electrical Engineering) Advisor: Quing Zhu (ECE Department) Sponser: U.S. Geological Survey – Offjce of Groundwater

Tuesday, December 14, 2010

OUTLINE

BACKGROUND

• Introduction
• USGS
• Purpose & Goals
• Seismic Waves/Geophones
• The Problem
• Project Goals

Design

• Hardware
• Alternative Design
• Software

TIMELINE BUDGET QUESTIONS?

Tuesday, December 14, 2010

U.S. Geological Survey

Scientific agency of the US government. Study of landscape, natural resources, and the natural hazards that threaten it. Divided into four major science disciplines, concerning biology, geography, geology, and hydrology.

Tuesday, December 14, 2010

USGS Purpose and Goals

Branch of Geophysics - Groundwater Information Providing technical support and guidance

Applied Research Improve monitoring methods Monitor hydrologic processes Borehole-radar methods for ground-water investigations Technology Transfer Improve monitoring methods Testing of newly developed geophysical technology

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Seismic Waves/Geophones

Waves of energy that travel through earth Sensors: Seismographs, Hydrophones (in water), Accelerometers, Geophones Waves propagation velocity depends on density and elasticity of the medium Two types of Seismic Waves: Body and Surface

B-waves: faster and based on temperature, composition, phase. S-waves: lower frequency, long duration, high amplitude

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The Problem

Measuring flow of water can be diffjcult

• Numerous locations

Technology Cost

• Price
• Sensory Effjciency

Durability

• Sturdy
• Resilience to harsh natural weather/geographical

conditions?

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Project Goal

Phase 1: Developing an inexpensive data acquisition-storage device which incorporates the use of a geophone.

• Gathering viable data from a river or

stream

• Analyzing data for noise and

inconsistencies

• Designing filter to reduce noise
• Selecting specific components for

design needs

• Programming and testing

microcontroller circuit

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Phase 2: Developing a sustainable energy power source for the device. Phase 3: Create a means of accessing the device via satellite or mobile device

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Preliminary Hardware Design

Geophone Microcontrolle r USB Solar Panel Storage Device Data Transmission Amplifier Program Code Filter

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Geophone

Converts Ground Movement into Voltage Spring-mounted magnetic mass moving within a wire coil Waves passing through the earth have a three-dimensional nature

Three-component or 3-C geophones

N S E W

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Main Hardware Unit

Microcontroller Filter Circuit Data transfer option

USB Device SD Card

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Design

Microcontroller Model Processes quality information to external transfer device USB-Device Adequate Storage Availability Durability

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Alternative Design

Use of acceleration sensor Multiple direction measurement Low pass and Butterworth filters

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Research

Defining the most suitable filter for our device

Low-pass/high-pass filter

A need to search for an amplifier that would fulfill the given task Research on possible alternative energy sources

Solar energy, Battery, Both

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DATA ADC SRAM

Programming

Collecting and storing data Computing and averaging data Transmitting data

TIMER ADC EEPROM EEPROM USART FLASH DRIVE

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Testing

Test geophone

Lab testing Field testing Data comparison

Test the input circuit Test the microcontroller’s program Test the device in the working environment

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Future Improvements

Solar Panel

Self-sustaining power source Cheap and effjcient Eco-friendly

Data Transmission

Accessibility to data via satellite/mobile device

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Milestones

Finished

Research of the Geophone

In progress

Analysis of the Geophone Designing simulated setup

Upcoming

Building and programming circuit Testing circuit-geophone setup

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Time Line

Sep Oct Nov Dec Jan Feb Mar Apr May Research and Planning Design Circuit Purchase Components Develop Program Assemble System Test System Debugging Finalize Project

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Budget

Budget Estimation

Test equipment $100 Microcontroller $50 Instrumental Amplifier $50 USB interface $5 Programming interface $150 Board fabrication $200-$300 Portable power source $100 Other components $100

Tuesday, December 14, 2010

Questions?

Tuesday, December 14, 2010