1. An analysis system that analyzes sensor data sensed by a sensor node using the sensor node and a server mutually connected via a network, wherein the sensor node and the server have each a send/receive unit, a memory unit, and a control unit, wherein the memory unit of the server stores the sensor data received via the network, wherein the control unit of the server rearranges the sensor data in the chronological order when the sensor data that arrived later has an earlier order of being sensed than the sensor data that arrived earlier so that the sensor data sensed earlier may take an earlier order than the sensor data sensed later, and stores it into the memory unit, and wherein the server performs analysis related to the sensor data using the sensor data that was rearranged in the chronological order of sensing and outputs a performed result.