Low-power-consumption equipment broadcast upgrading method and system based on Wi-SUN network mass data mode

The invention relates to the technical field of wireless communication, in particular to a low-power-consumption equipment broadcast upgrading method and system based on a Wi-SUN network mass data mode. The method comprises the following steps: constructing a Wi-SUN network architecture by taking low-power-consumption equipment as end node equipment and taking a gateway and a relay as normally-on-electricity equipment; the remote server broadcasts, transmits and stores the upgrade package to the relay closest to the low-power-consumption equipment; when all the preset message commands are issued, the remote server issues a dormancy command; the relay closest to the low-power-consumption equipment intercepts the sleep command and judges whether the relay itself contains an upgrade package or not, when the relay itself contains the upgrade package, the relay closest to the low-power-consumption equipment performs appointment wakeup on the low-power-consumption equipment, and the low-power-consumption equipment