nRF ANT Test Min-ju Kang 2016.06.09

Index ANT Protocol Performance Test Power Consumption Design based on ANT Further work

ANT Protocol Comparison of network Master Slave Same Channel Different Channel M M M M ID1 Addr1 CH1 Addrn M M S S S CH2 S ID2 S Addr2 S … … … … S S M CHn IDn M N : 1 (X) 1 : N 1 : N N : 1 1 : 1 (O) Broadcast Shared Channel Multi - Channel

ANT Protocol Comparison of pros and cons Case Strengths Weaknesses Needs Broadcast Can’t send specific slave. Shared Channel Can send specific slave in shared channel. (Data[0] ~ [1] : Address) 1. Slaves are assigned with same channel period. 2. After master must send slave with corresponsive address, The slave can send message to master. 1. Channel Type & Transmission Type : Shared. 2. Master and Slave have same channel period. 3. Use appointed address. Multi - Channel Can identify channel. Can configure different channel period. The number of channel is max 15. Open new channel.

Performance Test Time to receive first data Time & Bandwidth during send 100 data per channel Multi / Shared M M Addr1 CH1 Addrn M S CH2 S Addr2 S … … S CHn M Shared Channel Multi - Channel

(Independent & Global Data) Performance Test Channel Configuration – Multi channel Slave Master Channel Name Channel Number Channel Type RF frequency Transmission Type Device Type Device number Channel Period Network Number A 0x00 SLAVE 0x66 (2466MHz) (Wildcard) 0x01 4Hz, 50Hz, 100Hz (Public) B 0x02 C 0x03 A/B/C 0x00 MASTER 0x66 0x05 (Independent & Global Data) 0x01/ 0x02/ 0x03 4Hz, 50Hz, 100Hz (Public)

Performance Test Channel Configuration – Shared Channel Slave Master txBuf[0] = 0x01 / 0x02 / 0x03 Channel Name Channel Number Channel Type RF frequency Transmission Type Device Type Device number Channel Period Network Number A 0x00 SHAREDSLAVE 0x66 (2466MHz) (Wildcard) 0x01 100Hz (Public) A 0x00 SHARED MASTER 0x66 0x02 (Shared Channel 1byte) 0x01 100Hz (Public)

Performance Test Time to Receive first data – Multi-channel Result Channel Period Time 4Hz 1620ms (Max : 2900ms ~ Min : 400ms) 50Hz 284ms (Max : 1020ms ~ Min : 50ms) 100Hz 126ms (Max : 400ms ~ Min : 5ms) (Average : 9 count)

Performance Test Time & Bandwidth during send 100 data per channel - Multi-channel Channel Period : 100Hz Message Type :with Ack

Performance Test Result Tx/Rx Period : 20ms <- expected value : 10ms Average : 3 number of Test Device Type Time [sec] Bandwidth [Kbps] Slave 1.996 3.21 1 Master 2.008 3.19 7.715 (Max : 8.758 ~ Min : 6.755) 2.517 (Max : 2.842 ~ Min : 2.192) 3 Master 5.194 (Max : 7.843 ~ Min : 2.264) 1.524 (Max : 2.83 ~ Min : 0.82)

Performance Test Time & Bandwidth during send 100 data per channel - Shared Channel Channel Period : 100Hz Message Type :with Ack Result Device Type Time [sec] Bandwidth [Kbps] Slave 4.753 1.347 Master 4.701 1.361 (Average : 3 slave)

Power Consumption Graph Sleep Mode Master : 21.71 uA Slave : 22.80 uA

Power Consumption Graph Master Acknowledge : 1.66 mA Broadcast : 1.24 mA

Power Consumption Graph Slave Same power consumption regardless of channel period Open Channel : 1.73 mA

Power Consumption Graph Slave Acknowledge :1.07 mA Broadcast : 896.32 uA

Power Consumption Result Channel Period [Hz] State Data type Device Type Average Power Nothing (Sleep) Master 21.71 uA Slave 22.80 uA 100 Open channel 1.73 mA Transmission Acknowledge 1.66 mA 1.07 mA Broadcast 1.24 mA 896.32 uA 5 1.71 mA 103.82 uA 71.26 uA 81.85 uA 65.62 uA

Design based on ANT Slim-Lite Master : Slim-Lite Slave : Mobile M S M CH1 CH1 CH2 CH1 CH2 S S S S S S S S S CH1 : 5Hz, Anchor notify & Mobile request service CH2 : 100Hz, Services

Further work SPI on Slim-Lite Zigbee Network