Industrial wireless systems, primary wireless node, and secondary wireless node

A secondary wireless node in an industrial wireless system that includes at least a primary wireless node wire-connected to a first industrial device that collects data and a secondary wireless node wire-connected to a second industrial device that sends the data toward the first industrial device and wirelessly connected to the primary wireless node, and mediates data communication between the second industrial device that sends the data and the first industrial device that collects the data, the secondary wireless node comprising:

• a wired communication port that is wire-connected to the second industrial device;
• a first wireless communication port that wirelessly communicates with a mobile device corresponding to the first industrial device in a first wireless network;
• a second wireless communication port that wirelessly communicates with the primary wireless node in a second wireless network;
• and
• a transfer portion that transfers data transmitted from the second industrial device to the first industrial device via the second wireless communication port, the second wireless network, and the primary wireless node, and transfers monitoring information of the second industrial device or the second wireless network transmitted from the first industrial device and received via the primary wireless node, the second wireless network, and the second wireless communication port to the mobile device via the first wireless communication port,
• wherein a first radio frequency band is used in the first wireless network,
• a second radio frequency band is used in the second wireless network, and
• the second radio frequency band is a higher frequency band than the first radio frequency band.

An industrial wireless system including a primary wireless node wire-connected to a first industrial device, a secondary wireless node wirelessly connected to the primary wireless node, and a tertiary wireless node wirelessly connected to the secondary wireless node, the industrial wireless system transferring data transmitted and received between a second industrial device wire-connected to the secondary wireless node or the tertiary wireless node and the first industrial device, wherein

• the primary wireless node includes:
• a first wired communication port that is wire-connected to the first industrial device;
• a first wireless communication port that is wirelessly communicable with a mobile device corresponding to the first industrial device in a first radio frequency band;
• and
• a second wireless communication port that wirelessly communicates with the secondary wireless node at a second radio frequency band higher than the first radio frequency band,
• the secondary wireless node includes:
• a second wired communication port that is wire-connectable to the second industrial device;
• a third wireless communication port that is wirelessly communicable with the mobile device in the first radio frequency band;
• and
• a fourth wireless communication port that wirelessly communicates with the primary wireless node and the tertiary wireless node in the second radio frequency band,
• the tertiary wireless node includes:
• a third wired communication port that is wire-connectable to the second industrial device;
• a fifth wireless communication port that is wirelessly communicable with the mobile device in the first radio frequency band;
• and
• a sixth wireless communication port that wirelessly communicates with the secondary wireless node in the second radio frequency band,
• the primary wireless node, the secondary wireless node, or the tertiary wireless node constructs a first wireless network that relays data communication performed between the first industrial device and the mobile device,
• the primary wireless node, the secondary wireless node, and the tertiary wireless node construct a second wireless communication network for relaying data communication between the first industrial device and the second industrial device,
• the mobile device wirelessly connects to one of the primary wireless nodes, the secondary wireless node, or the tertiary wireless node via the first wireless network, and
• the mobile device is configured to display data collected from the second industrial device by the first industrial device, and state information indicating a communication state related to the second wireless communication network collected from the primary wireless node, the secondary wireless node, and the tertiary wireless node.