LOW POWER CONSUMPTION NETWORKING METHOD OF 802.15.4E WIRELESS DEVICE THAT TAKES POWER BASED ON 4-20MA LOOP

摘要

The present invention relates to a low power consumption networking method of an 802.15.4e wireless device that takes power used on a 4-20 mA loop, which comprises the following steps: a wireless device taking power in a loop; constructing a wireless network that is oriented to an ultra-low power consumption application; the wireless device implementing unidirectional time synchronization based on the preceding wireless network; on a basis of preceding time synchronization, completing neighbor discovery; the wireless device interacting with the wireless network; and pausing a preceding procedure according to a power monitoring result of an energy storage monitoring module. The present invention detects messages through continuously switching channels to implement quick and energy-saving unidirectional time synchronization, replaces traditional listening on beacon frames with listening on common messages on a basis of time synchronization, improves a listening sequence for neighbor discovery, enables listening only at a time slot where the beacon frames may appear and sleeps at other time, not only saving channel search time, but also reducing energy consumption that is generated in neighbor discovery, and thus reducing time and energy consumption of entire network establishment.

主权项

1. A Lower power consumption networking method of 802,15.4e wireless device that takes power based on a 4-20 mA loop, includes the following steps:
S1. a wireless device takes power from a loop; S2. construct a wireless network that is oriented to an ultra-low-power consumption application; S3. the wireless device implements unidirectional time synchronization based on the preceding wireless network; S4. complete neighbor discovery on a basis of preceding time synchronization; S5. the wireless device interacts with the wireless network; power detection is made before entry into the next step, and if the residual power is insufficient for completing the subsequent steps, the process will he suspended and not go to the next step until sufficient power is stored.