A COMPARISON OF COMMERCIAL-OFF-THE-SHELF BLUETOOTH DETECTORS
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1 A COMPARISON OF COMMERCIAL-OFF-THE-SHELF BLUETOOTH DETECTORS
2 5 VENDOR TEST PLATFORM Bluetooth + Wifi Bluetooth Bluetooth + Wifi Product testing Bluetooth Bluetooth
3 STUDY AREA
4 STUDY OBJECTIVES
5 STUDY TIMELINE Interference Testing Accuracy Testing Phase 1 Phase 2 Phase 3 Features and Back-end System Comparison
6 INTERFERENCE TESTING Objective Determine the level of interference when Bluetooth devices are spaced in close proximity to each other through the use of capture-rate data. Establish a deployment guideline for the subsequent study locations. Confirm differing claims of potential interference caused by neighboring Bluetooth or Bluetooth-WiFi devices.
7 INTERFERENCE TEST LOCATION Test Location 1 included 4 devices mounted on the same pole (BlueMac, Acylica, BlueToad, and BlipTrack) Test Location 2 included a standalone BlueMac unit. Site selection minimized the number of sidestreet accesses between the two test locations to target the same study population. ~500 ft.
8 INTERFERENCE TEST RESULTS BlueMAC Detections / Hour :00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:0012:00 PM AM 1:00 AM 2:00 AM 3:00 AM 4:00 AM Hour 5:00 AM 6:00 AM 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:0012:00 AM PM 1:00 PM 2:00 PM 3:00 PM Device 1 (Solo) Device 3 (Clustered) LARGE DIFFERENCE IN NUMBER OF CAPTURE RATES PER HOUR, UP TO 5X DIFFERENCE IN THE PEAK HOURS.
9 FEATURES AND BACK-END SYSTEM COMPARISON
10 BLUEMAC Characteristics Manufactured by DigiWest Pole Mounted Design Utilizes cellular modem for data connection Battery/Solar/Wired Power options Bluetooth Detection Technology First-to-First MAC Address Matching Capabilities O/D Calculations Travel Time Reports Time Period Filters Device Health Monitoring Self-mapping (GPS)
11 BLUEMAC HIGHLIGHTS User-defined outlier thresholds Eliminate outliers by travel time /speed Detailed Travel Time Reports Average travel times, 15th,85th and 95th percentile travel times Exportable data (Travel Time and O/D) Raw Matches as well as statistical data are exportable to CSV format.
12 BLUETOAD Characteristics Manufactured by TrafficCast Pole Mounted design 3G Modem for data connection Battery/Solar/Wired Power Bluetooth Detection Technology Capabilities Real-time Speed Map O/D Calculations Travel Time Reports Time Period Filters Comparison Report Historic Reporting Device Health Monitoring XML Feeds Alarming
13 BLUETOAD HIGHLIGHTS Advanced Data Analysis Smoothed Average speed, travel time and number of matches trips aggregated by 5min/15min Visual real-time speed & travel time Comparison report Compare Speed/travel time by historical average, speed limits, or userdefined thresholds. Large variety of report types Bar charts, pie chart, Matrix, map-based visualization Exportable Data Raw Matches as well as statistical data are exportable to CSV format.
14 BLUETOAD HIGHLIGHTS
15 BLIPTRACK Characteristics Manufactured by Blip Systems Pole Mounted design 3G Modem for data connection Wired Power Bluetooth and WiFi Detection Technology Highest-to-Highest MAC Address Matching Capabilities Real-time Speed Map Travel Time Reports Time Period Filters Historic Reporting Device Health Monitoring
16 BLIPTRACK HIGHLIGHTS User-friendly GUI/dashboard Provide complete overview of traffic situation including live speed map, historical travel time chart, travel time comparison chart. Configurable to user s preference. Exportable Data Raw Matches as well as statistical data are exportable to CSV format.
17 ACYCLICA Characteristics CrossCompass Model Pole Mounted design 3G Modem for data connection Wired Power Bluetooth and WiFi Detection Technology Configurable MAC Address Matching Algorithms Capabilities O/D Calculations Travel Time Reports Time Period Filters
18 ACYCLICA HIGHLIGHTS Multiple travel time Calculators Uses multiple travel-time matching algorithms to permit sophisticated analysis. Max, Min, First, Last, Signal Strength Exportable Data Raw Matches as well as statistical data are exportable to CSV format. Matrix view of O/D and travel time O/D map view
19 ACYCLICA HIGHLIGHTS
20 ITERIS VANTAGE VELOCITY Characteristics Manufactured by Iteris Mounted within Cabinet (antenna on top) Ethernet connection Communicates with central server Wired Power Bluetooth Detection Technology First-to-First MAC Address Matching Capabilities Real Time Speed Map O/D Calculations Travel Time Reports Time Period Filters Historic Reporting Device Health Monitoring
21 ITERIS VANTAGE VELOCITY HIGHLIGHTS Real-Time Data Summary Generate instantaneous travel time and speed summary report Visualized Speed & Travel time Comparison report Compare Speed/travel time by Date, TOD, and Segments Historical Device Performance Graph (System Uptime) Calculates Passage Time for Intersection Delay
22 ITERIS VANTAGE VELOCITY HIGHLIGHTS
23 PHASE 3 ACCURACY TESTING Objectives Long term study to compare system accuracy (with respect to capture rates, match rates and data processing algorithms) Compares Bluetooth and WiFi detection technology and matching/smoothing algorithms to benchmark results against other technologies and traffic data. Considerations: Location selection to conduct a equal opportunity evaluation/comparison. Option 1: Mount multiple devices at one location, energizing one device at a time for a long-term study. Option 2: Mount devices in a free-flow environment with enough lateral distance for spacing and limited access points.
24 Q&A THANK YOU Daniel Lai ITS Technical Manager
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