US 2020/0288285 A1 · COMMUNICATION METHOD AND COMMUNICATION SYSTEM

Abstract

A communication method includes: switching an operation mode of a first station from a first operation mode to a second operation mode; transmitting a first signal from the first station to a second station; transmitting data from the second station to the first station in response to the first signal; storing the data received by the first station from the second station into a storage of the first station; switching the operation mode of the first station from the second operation mode to the first operation mode; transmitting a second signal from an access point to the first station; and transmitting the data stored into the storage from the first station operating in the first operation mode to the access point in response to the second signal.

Claims9

Dependent claims

1-8. (canceled)

A communication method for use in a communication system including an access point, a first station, and a second station each of which is connected to a wireless network,

the first station being disposed on a first terminal block located at a joint between power supply lines and obtaining temperature data that is data indicating an internal temperature of the first terminal block, the power supply lines being installed along a rail to supply electricity to a transport vehicle traveling on the rail,
the second station being disposed on a second terminal block located at a joint between the power supply lines and obtaining temperature data that is data indicating an internal temperature of the second terminal block,
the method comprising:
(a) switching an operation mode of the first station from a first operation mode in which the first station operates as a slave station to a second operation mode in which the first station operates as a proxy master station;
(b) transmitting, from the first station operating in the second operation mode to the second station, a first signal that requests transmission of the temperature data held by the second station;
(c) transmitting the temperature data from the second station to the first station in response to the first signal;
(d) storing the temperature data received by the first station from the second station into a storage of the first station;
(e) switching the operation mode of the first station from the second operation mode to the first operation mode after the first station receives the temperature data from the second station;
(f) transmitting, from the access point to the first station, a second signal that requests transmission of the temperature data, after the temperature data is stored into the storage of the first station;
and
(g) transmitting, from the first station operating in the first operation mode to the access point, the temperature data stored into the storage, in response to the second signal.

8 more elements

A communication system comprising:

an access point connected to a wireless network;
a first station connected to the wireless network;
and
a second station connected to the wireless network,
wherein the first station is disposed on a first terminal block located at a joint between power supply lines and obtains temperature data that is data indicating an internal temperature of the first terminal block, the power supply lines being installed along a rail to supply electricity to a transport vehicle traveling on the rail,
the second station is disposed on a second terminal block located at a joint between the power supply lines and obtains temperature data that is data indicating an internal temperature of the second terminal block,
the first station includes:
a controller that switches an operation mode of the first station between a first operation mode in which the first station operates as a slave station and a second operation mode in which the first station operates as a proxy master station;
a first communicator that, when the operation mode of the first station is switched from the first operation mode to the second operation mode, transmits a first signal that requests transmission of the temperature data held by the second station to the second station;
and
a storage that stores the temperature data transmitted from the second station, the second station includes:
a second communicator that transmits the temperature data to the first station in response to the first signal transmitted from the first station, the access point includes:
a third communicator that transmits a second signal that requests transmission of the temperature data to the first station after the temperature data is stored into the storage of the first station, and
after the operation mode of the first station is switched from the second operation mode to the first operation mode, the first communicator of the first station transmits the temperature data stored into the storage to the access point in response to the second signal transmitted from the access point.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/753,830Filed 5 Oct 2018

Priority

JP 2017-19648710 Oct 2017

Published

10 Sep 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 4/38
Services specially adapted for particular environments, situations or purposes: for collecting sensor information
H04W 4/40
Services specially adapted for particular environments, situations or purposes: for vehicles, e.g. vehicle-to-pedestrians [V2P]
H04W 4/02
Services specially adapted for wireless communication networks; Facilities therefor: services making use of location information
H04W 4/80
Services specially adapted for wireless communication networks; Facilities therefor: services using short range communication, e.g. near-field…

Communication method and communication system

Life of this patent

Communication method and communication system

Life of this patent

Abstract

Claims9