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Matt Malinowski Responsive Environments Micropower Active Tags for Supply Chain Management New Directives in Shipping/Logistics Container Security Initiative/Customs-Trade Partnership Against Terrorism (Jan/Apr 2002) Moves customs inspections further upstream

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Micropower Active Tags for Supply Chain Management


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Presentation Transcript
new directives in shipping logistics
New Directives in Shipping/Logistics
  • Container Security Initiative/Customs-Trade Partnership Against Terrorism (Jan/Apr 2002)
    • Moves customs inspections further upstream
    • Documentation of packing and loading
  • Advanced Manifest Rule (Feb 2003)
    • Cargo data must be submitted to U.S. Customs 24 hours in advance—focuses inspections
    • Eventually to be submitted electronically
additional concerns
Additional Concerns
  • Inventory Management
    • Better estimate of lead times
    • Prevent shortages/overstock
  • Supply Chain “Transparency” and “Visibility”
private sector responses
Private-Sector Responses
  • Smart and Secure Tradelanes (Jul 2003)
    • Collaboration between three largest port operators to automate port security
    • Electronic tracking and identification of cargo entering U.S. ports
  • Implemented as Electronic Seals on Shipping Containters
    • Active RFID tags on container doors
    • Associated passive and active technologies
  • Security Integrated into Supply Chain
synnergy
Synnergy
  • Passive RFID
    • Applied to items/crates in factory for identification and tracking
    • Associated with container active tag upon loading: “virtual container”
  • Active Infrastructure
    • Gateways/beacons send location information via short-range, low-frequency RF
    • Active tags record and communicate this information back to readers
    • Linked to GPS/OmniTrac for real-time monitoring
platform 1 savi sensortag st 676
Platform 1: Savi SensorTag ST-676
  • Sensors: door open, light, temperature, vibration, humidity
  • RF links:
    • 433.92 Mhz, ~ 100m
    • 123 kHz, ~ 4m
  • Storage: 32 kB
  • Power:
    • 3.6 V replaceable Li
    • 4 years at 2 samples/day
platform 2 sensitech temptalerf
Platform 2: Sensitech TempTaleRF
  • Sensors: temperature
  • RF links:
    • 915 Mhz, ~ 100m
  • Storage: 2 kB
  • Power:
    • Battery lasts 1 year
my proposed design
Sensors:

MSI Vibratab ($1.25)

Kyocera PSAC ($1)

Sensirion SHT-11 ($17)

Reed switch?

Phototransistor?

RF wakeup?

My Proposed Design
  • TI MSP430 µController (0.2μA, $3)
  • Philips PCF8563T Real-time Clock (0.25μA, $0.82)
  • Chipcon CC2500 Transceiver (0.4μA, $2.45)
  • LTC1540 Comparator (0.3μA, $1.65)
advantages
Advantages
  • Smaller and cheaper platform allows item- and crate-level tagging
  • Lower power consumption extends battery life
  • Better granularity of measurements
  • Less bias compared with door-mounted sensor
not just tags a sensor network
Not Just Tags: A Sensor Network
  • Multihop communication between tags
    • No need to scan each object/crate individually—objects scan each other
    • Constant monitoring of cargo, not just at read points
    • Verification of suspicious sensor readings across network
    • Clock synchronization
    • Other?
timeline
Timeline
  • Now
    • Background research
    • Part selection
    • Design
  • Spring 2006
    • Design/construction
  • Summer 2006
    • Testing/redesign
  • Fall 2006
    • Further tests/writing
references
References
  • Lee, H.L. and Whang S., “Higher Supply Chain Security with Lower Cost: Lessons from Total Quality Management”, Int J Prod Econ. 96 (2005).
  • “Savi SensorTag ST-676 Datasheet”, (Unpublished), Jan 2006
  • “Integrated RF-enabled Temperature Monitoring Infrastructure”, http://www.sensitech.com/applications/coldstream_pts/ColdStream_Infra_DataSheet.pdf, Mar 2006.
  • “Savi Transportation Security System”, (Unpublished), 2004.