5.3.8 Parent Loss Detection

This section describes the power profile of Mi-Wi P2P Star sleeping device during the detection of a parent loss. The following figure illustrates the profile captured during a node trying to transmit an indirect data request to its parent and not receiving a MAC ACK for the same. As a result, the sleeping device retries three times. After failing to reach the parent for MAX_LINK_STATUS_FAILURES, the sleeping device detects a parent loss and transmits the P2P connection request to scan for any nearby nodes for joining to the network.
Figure 5-44. SAM R30 XPro
Figure 5-45. SAM R30 Module XPro
Table 5-34. Parameters
Parameters SAM R30 XPro SAM R30 Module XPro
Total duration (ms) 87.80 83.4
Average current (mA) 11.02 12.17
Peak current (mA) 29.19 25.3
Total charge (mA*ms) 967.56 1015
The following profile is captured during a node trying to transmit the indirect data request to its parent along with the link status message and failing to reach its parent.
Figure 5-46. SAM R30 XPro
Figure 5-47. SAM R30 Module XPro
Table 5-35. Parameters
Parameters SAM R30 XPro SAM R30 Module XPro
Total duration (ms) 140.40 141.5
Average current (mA) 12.36 12.7
Peak current (mA) 29.09 25.85
Total charge (mA*ms) 1735.34 1797.05