A system comprises a first peer sensor tag configured to sense first sensor data using a first local sensor of the first peer sensor tag and a second peer sensor tag configured to sense second sensor data using a second local sensor of the second peer sensor tag while the second peer sensor tag is not within a communication range of the first peer sensor tag. The second peer sensor tag is configured to detect a first beacon signal of the first peer sensor tag, the first beacon signal including at least a portion of the first sensor data, the first beacon signal being transmitted according to a first network communication protocol. The second peer sensor tag is configured to obtain the at least a portion of the first sensor data from the first beacon signal. A base station is configured to detect a second beacon signal of the second peer sensor tag, the first beacon signal including the at least a portion of the first sensor data and at least a portion of the second sensor data. The base station is configured to obtain the at least a portion of the first sensor data and the at least a portion of the second sensor data from the second beacon signal, and to provide the at least a portion of the first sensor data and the at least a portion of the second sensor data to a server system using a second network communication protocol different from the first network communication protocol.