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Published bySamuel Curtis Modified over 8 years ago
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RTLAB. Jo Hyeong-Gon
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Contents. LIDx Power management power consumption Proposed LIDx sequence & timing Life-span estimation OAD ZOAD Progress & Further works Q&A
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Power management How to POWER_SAVING compile option RX is off when idle All Z-Stack tasks agree to permit power saving Z-Stack tasks have no scheduled activity
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Power management(cont’)
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Power consumption 8051 core Active : 8.76mA (no regulator: 7.3mA) TIMER sleep(PM2): 28uA (no regulator: 1.15uA) DEEP sleep(PM3): 30uA (no regulator: 0.34uA) Peripheral Accelerometer: 235uA Led: 8mA Buzzer: 39.6mA Power check circuit: 0.5mA Radio RX on: 26mA TX: 30mA
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Proposed LIDx sequence
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Proposed LIDx timing Beacon period : 100 ms RX waiting time : 200 ~ 400ms Active time : 2-TX + RX waiting time 고정노드 이동노드 비콘 Sleep 메시지 요청 Active Location (if changed) TXRXTX 비콘
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Life-span estimation Mode 1 RX 400ms, TX *2, 1 cycle - 10 sec Avg. current : 1.080788mA Mode 2 RX 400ms, TX, 1 cycle – 120 sec Avg. current : 0.117067mA Scenario Mode1*14h + Mode2*10h -> Avg. current : 0.679238mA 1468mAh
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Life-span estimation Mode 1 RX 200ms, TX *2, 1 cycle - 10 sec Avg. current : 0.561388mA Mode 2 RX 200ms, TX, 1 cycle – 120 sec Avg. current : 0.0742824mA Scenario Mode1*14h + Mode2*10h -> Avg. current : 0.3584274mA 775mAh
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Life-span estimation Mode 1 RX 400ms, TX *2, 1 cycle - 10 sec Avg. current : 1.080788mA Mode 2 Deep sleep Avg. current : 0.4uA Scenario Mode1*14h + Mode2*10h -> Avg. current : 0.6305mA 1361mAh
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Over the Air Download(OAD) Z-Stack OAD (ZOAD) Context Boot code Application code Architecture
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ZOAD (cont’) Application code
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ZOAD Boot code
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Progress & Further works Progress Stationary node CC2530 version Power management test Further works Sequence update Stationary node message buffer (LIDx OAD)
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Q&A
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