Node data transmission method

A node data transmission method, wherein two neighboring nodes are synchronously awakened by a time synchronization method, and after the two neighboring nodes are time synchronized and awakened, the node determines a data cache thereof, if

• scenario I:
• the data cache of the node is less than a threshold, the node acts as a parent node role to collect data without transmitting data, and calculate whether its remaining energy can collect data and make the data cache greater than the threshold;
• if the remaining energy is not sufficient to be maintained until the data cache is greater than the threshold, calculate the next synchronization wake-up time of the node and its neighboring child node, enter the sleep state when its energy is exhausted, and wait for the next time synchronization wake-up;
• if the remaining energy is sufficient to be maintained until the data cache is greater than the threshold, calculate the next synchronization wake-up time of the node and its neighboring parent node, and if the data cache becomes greater than the threshold during the wake-up, the node is converted to a child node role to transfer the collected data without collecting data, and enter the sleep state when its energy is exhausted, waiting for the next time synchronization wake-up;
• scenario II:
• the data cache of the node is greater than the threshold, the node acts as a child node role to transmit data without collecting data, and calculate whether its remaining energy can transmit data in the data cache until the data cache is less than the threshold;
• if the remaining energy is not sufficient to be maintained until the data cache is less than the threshold, calculate the next synchronization wake-up time of the node and its neighboring parent node, and enter sleep state when its energy is exhausted, waiting for the next time synchronization wake-up;
• if the remaining energy is sufficient to be maintained until the data cache is greater than the threshold, calculate the next synchronization wake-up time of the node and its neighboring child node, and if the data cache becomes less than the threshold during the wake-up, the node is converted to a parent node role to collect data without transmitting data, and enter the sleep state when its energy is exhausted, waiting for the next time synchronization wake-up.