DATA COLLECTION SYSTEM
An object of the present disclosure is to enable collection of data at low cost from sensor terminals dispersedly deployed in a wide area. The present disclosure is a data collection system that collects data from a plurality of terminals, a mobile network apparatus delivers an activation signal for activating the plurality of terminals from a sleep state and receives a layer 2 communication frame transmitted from the plurality of terminals, and the plurality of terminals, when receiving the activation signal, transmits preset information to the mobile network apparatus using an extension area of a layer 2 communication protocol.
1 . A terminal that
is activated when receiving an activation signal for activation from a sleep state from a mobile network apparatus,
transmits preset information to the mobile network apparatus by using an extension area of a layer 2 communication protocol, and
returns to a sleep state after transmitting the preset information.
2 . The terminal according to claim 1 , wherein the preset information includes at least one of a presence notification, a state notification, and an abnormality notification of an own apparatus.
3 . A mobile network apparatus that
delivers an activation signal for activating a terminal from a sleep state, and
receives a layer 2 communication frame from the terminal activated by the activation signal.
4 . The mobile network apparatus according to claim 3 , wherein the activation signal is an analog signal detectable by the terminal during sleep or a radio signal conforming to IEEE 802.11ba.
5 . The mobile network apparatus according to claim 4 , wherein the analog signal is at least one of sound, vibration, light, and radio waves.
6 . (canceled)
7 . A method wherein a terminal
is activated when receiving an activation signal for activation from a sleep state from a mobile network apparatus,
transmits preset information to the mobile network apparatus by using an extension area of a layer 2 communication protocol, and
returns to a sleep state after transmitting the preset information.
8 . (canceled)