Modular Rapid Monitoring System

Timothy Kritzler and Joseph Mintun

Sponsor: Martin Engineering, IllinoisAdvisors: Dr. Malinowski and Dr. Ahn

Bradley University Electrical and Computer EngineeringOctober 1, 2015Modular Rapid Monitoring System

AgendaProblem BackgroundDesign ApproachEconomic AnalysisScheduleDivision of LaborSocietal and Environmental Impacts1Problem BackgroundSponsored by Martin Engineering

Modular Rapid Monitoring SystemLogs analog and digital signals.Ability to easily add additional inputs.Low cost design.

Past Project ProgressTeam in class of 2015 worked on same project.Goal: Continue development to make a proof-of-concept system for sponsor.

2Problem BackgroundSystem logging data within 50 ms after boot.Accelerometer and ADC operating at 600 Hz.Permanently store the first five minutes of incoming data.Permanently store the five minutes of data after power down.Keep cost under $300.3Design: ApproachTwo subsystemsSensor Interface System (SIS)Acquires data from ADC and accelerometer.Calculates RPM using ADC voltage/current.Stores in rotary buffer.Sends data via UART.Gateway Interface System (GIS)Receives and stores data from SIS.Hosts web server that displays data to user.Wireless ad-hoc network to access server.

4Design: System Block Diagram5

Figure 1: System Block DiagramDesign: Solution6Sensor Interface System (SIS)Atmel UC3-A3 Xplained.ADXL335 Accelerometer.UART communication.Custom embedded firmware.

Design: Solution7Gateway Interface System (GIS)Raspberry Pi.RT5370 USB Wi-Fi dongle.UART communication.Lightweight embedded Linux.

Design: Alternate Solutions8Overall design must stay the same due to given constraints and previous work.Alternate ComponentsSensor Interface System (SIS)Many variations of Atmel UC3 Xplained.Gateway Interface System (GIS)Beaglebone Black.Other ARM based boards.

Design: Key Skills and Research9Sensor Interface System (SIS) Experience with Atmel 8-bit microcontrollers and C programming from ECE 103, 205, 322, 471.Analog I/O, I2C, and UART communications were covered in ECE 322.Need to research different approach used in 32-bit systems.

Design: Key Skills and Research10Gateway Interface System (GIS) Experience with operating systems and microcontroller Linux from ECE 472.Peripheral access covered in ECE 471.Need to research driver setup and boot time optimization for embedded Linux.Design: Facilities11DevelopmentAll programming can be completed in Bradley ECE labs.Any assistance can be provided from Dr. Alexander Malinowski and Dr. In Soo Ahn. TestingPrimary testing will be done in Bradley ECE labs.If ahead of schedule, onsite testing at Martin Engineering will be arranged.Design: Testing Criteria12Sensor Interface System (SIS)Boot timeData acquisition Amplitude and frequencyRotary BufferI2C and accelerometerUART communication to Gateway Interface System

Design: Testing Criteria13Gateway Interface System (GIS)Boot timeUART communication to Sensor Interface SystemWeb serverEthernet communication firstWi-Fi communicationCheck driver works by connecting to access pointCreate ad-hoc network and connect to web server

Design: Testing Criteria14SIS and GIS combinedData acquired is displayed on web server. Accelerometer and ADC.Accuracy of data.Speed of data update on web server. Boot times are synchronized with the rotary buffer.

Economic Analysis: Components15PartCostStoreRaspberry Pi$30.00Element14 Online StoreAtmel UC3-A3 Xplained$31.25Atmel Online StoreADXL335 Accelerometer$15.00Sparkfun Online Store2x 2A Micro USB Power Adapter$7.99AmazonRT5370 USB Wi-Fi Adapter$11.99AmazonTotal Cost: $96.23

Much less than $300 constraint!Table 1: Components CostEconomic Analysis: Total Cost16All software used is either Open Source or provided free from developer.Bradley ECE Department has all equipment necessary.

Total cost of project is only that of the components: $96.23

Economic Analysis: Production17Martin Engineering has not provided any production information.Quantity required and cost of installation is unknown.Martin Engineering will set customer price.

Schedule: Deliverables18TaskStartFinishDurationProposal Presentation9/16/20159/30/20152 weeksProposal Documentation10/1/201510/14/20152 weeksWebpage Release10/12/201510/26/20152 weeksProgress Presentation10/26/201511/17/20153 weeksPerformance Review11/17/201512/1/20152 weeksTable 2: Deliverables ScheduleSchedule: Technical19TaskStartFinishDurationSISDevelop ADC controller9/8/20159/29/20153 weeksDevelop Serial Communication with GIS9/29/201510/20/20153 weeksOptimize Rotary Buffer for the Data10/20/201511/10/20153 weeksAccelerometer Interfacing11/10/201512/8/20154 weeksData Storage During GIS Boot12/8/20151/28/20165 weeksCorrect Timings for Sending Data1/28/20162/16/20163 weeksGISResearch and decide base OS9/8/20159/24/20153 weeksInterface Wifi9/29/201510/8/20152 weeksDevelop UART Access program10/13/201511/5/20144 weeksDevelop lightweight web server11/10/201511/26/20153 weeksOptimize boot time12/1/20151/28/20163 weeksOptimize Web server GUI 2/2/20162/11/20162 weeksCombined SIS/GIS Testing and debugging2/16/20163/10/20164 weeksTable 3: Technical ScheduleDivision of Labor20Joseph MintunSensor Interface SystemWeb PageTimothy KritzlerGateway Interface SystemWeb Page

Impacts21Who is affected?EthicsSafetyLiabilityRisks

Summary22Problem BackgroundDesign ApproachEconomic AnalysisScheduleDivision of LaborSocietal and Environmental Impacts

Timothy Kritzler and Joseph Mintun

Sponsor: Martin Engineering, IllinoisAdvisors: Dr. Malinowski and Dr. Ahn

Bradley University Electrical and Computer EngineeringOctober 1, 2015Modular Rapid Monitoring System

23Full Gantt Chart24

Table 3: Gantt ChartSoftware Flow Chart25

Figure 3: Software Flow Chart