Terminal management device, terminal management system, control method and non-transitory computer-readable medium

A terminal management system comprising:

• a first system including a terminal management device a relay device, and a first terminal device;
• and
• a second system coexisting with the first system and including the terminal management device and a second terminal device
• wherein the relay device is configured to enable the terminal management device to communicate with the first terminal device, and in a case of transferring information between the terminal management device and the first terminal device, the information is transferred passing through the relay device, and
• wherein the terminal management device is configured to communicate with the second terminal device, the information is transferred directly to the second terminal device without passing through the relay device,
• wherein the terminal management device includes a controller configured to perform:
• a first control of acquiring information from the relay device without directly communicating with the first terminal device for determining whether the first terminal device is in a state in which the first terminal device is capable of transmitting the information to the terminal management device via the relay device, and
• a second control of acquiring information directly from the second terminal device without using the relay device for determining whether the second terminal device is in a state in which the second terminal device capable of transmitting the information to the terminal management device;
• wherein in the performing of the first control, the controller is configured to determine whether the first terminal device is in the state capable of transmitting the information to the terminal management device via the relay device, based on whether the information from the first terminal device is transmitted from the relay device to the terminal management device within a time from when the first control is started to when a predetermined first time has elapsed, and
• wherein in the performing of the second control, the controller is configured to determine whether the second terminal device is in the state capable of transmitting the information to the terminal management device, based on whether a time, from when the terminal management device and the second terminal device last communicate with each other to when the second control is started, is within a predetermined second time.

A control method executed by a terminal management device in a terminal management system in which a first system and a second system coexist,

• wherein the first system includes the terminal management device, a relay device, and a first terminal device, wherein the relay device is configured to enable the terminal management device to communicate with the first terminal device, and in a case of transferring information between the terminal management device and the first terminal device, the information is transferred passing through the relay device, and
• wherein the second system includes the terminal management device and a second terminal device, wherein the terminal management device is configured to communicate with the second terminal device, the information is transferred directly to the second terminal device without passing through the relay device,
• the control method comprising:
• a first control of acquiring information from the relay device without directly communicating with the first terminal device for determining whether the first terminal device is in a state in which the first terminal device is capable of transmitting the information to the terminal management device via the relay device;
• and
• a second control of acquiring information directly from the second terminal device without using the relay device for determining whether the second terminal device is in a state in which the second terminal device is capable of transmitting the information to the terminal management device;
• wherein the first control includes determining whether the first terminal device is in the state capable of transmitting the information to the terminal management device via the relay device, based on whether the information from the first terminal device is transmitted from the relay device to the terminal management device within a time from when the first control is started to when a predetermined first time has elapsed, and
• wherein the second control includes determining whether the second terminal device is in the state capable of transmitting the information to the terminal management device, based on whether a time, from when the terminal management device and the second terminal device last communicate with each other to when the second control is started, is within a predetermined second time.

A non-transitory computer-readable medium storing instructions readable by a processor of a terminal management device in a terminal management system in which a first system and a second system coexist,

• wherein the first system includes the terminal management device, a relay device, and a first terminal device, wherein the relay device is configured to enable the terminal management device to communicate with the first terminal device, and in a case of transferring information between the terminal management device and the first terminal device, the information is transferred passing through the relay device, and
• wherein the second system includes the terminal management device and a second terminal device, wherein the terminal management device is configured to communicate with the second terminal device, the information is transferred directly to the second terminal device without passing through the relay device,
• the instructions, when executed by the processor, causing the terminal management device to perform:
• a first control of acquiring information from the relay device without directly communicating with the first terminal device for determining whether the first terminal device is in a state in which the first terminal device is capable of transmitting the information to the terminal management device via the relay device;
• and
• a second control of acquiring information directly from the second terminal device without using the relay device for determining whether the second terminal device is in a state in which the second terminal device is capable of transmitting the information to the terminal management device;
• and
• wherein in the performing of the first control, the instructions, when executed by the processor, cause the terminal management device to determine whether the first terminal device is in the state capable of transmitting the information to the terminal management device via the relay device, based on whether the information from the first terminal device is transmitted from the relay device to the terminal management device within a time from when the first control is started to when a predetermined first time has elapsed, and
• wherein in the performing of the second control, the instructions, when executed by the processor, cause the terminal management device to determine whether the second terminal device is in the state capable of transmitting the information to the terminal management device, based on whether a time, from when the terminal management device and the second terminal device last communicate with each other to when the second control is started, is within a predetermined second time.