IoT device having low power consumption mode and operating method thereof

• US 10,873,908 B2
• Filed: 05/22/2018
• Issued: 12/22/2020
• Est. Priority Date: 05/22/2017
• Status: Active Grant

• Current Assignee: Dialog Semiconductor Korea Incorporated (Renesas Electronics Corporation)
• Original Assignee: Dialog Semiconductor Korea Incorporated (Renesas Electronics Corporation)
• Inventors: Chung, Sang Hak, Lee, Sang Joon, Jang, Dong Woo
• Primary Examiner(s): Kao, Jutai
• Application Number:
  US15/985,728
• Publication Number:
  US 20180338285A1
• Time in Patent Office: 945 Days
• Field of Search: None
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 40/005 Routing actions in the presence of nodes in sleep or doze mode
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An IoT device having a low power consumption mode and an operating method thereof are disclosed. An objective in accordance with an aspect of an embodiment is to provide an IoT device wirelessly communicating, without a gateway, with a terminal by only a repeater and an operating method thereof.

Claims

1. An IoT device having low power consumption which is directly connected to a repeater without using a gateway and wirelessly communicates with a terminal, the IoT device having low power consumption comprising:

a control part configured to operate in a repeater mode in a situation that a preset condition is satisfied, configured to operate in a terminal mode and try to access to the repeater corresponding to repeater information in a situation that a mode change signal and the repeater information are received in a preset time, and configured to operate in a sleep mode in a situation that the mode change signal and the repeater information are not received in the preset time, wherein beacons are transmitted in the repeater mode, and at least a part of the IoT device is not provided with power in the sleep mode;

a wireless communication part configured to transmit, according to control of the control part, the beacons or a signal for accessing to the repeater corresponding to the repeater information, or configured to receive the mode change signal or the repeater information from the terminal; and

a power supply part configured to provide the power using a battery.

2. The IoT device having low power consumption of claim 1, further comprising:

an input part configured to receive at least one input from outside.

3. The IoT device having low power consumption of claim 2, wherein the preset condition comprises a condition that an initial power provided by the power supply part is received, a condition that the battery of the power supply part is reassembled, or a condition that the input part receives a reset signal inputted from outside.

4. The IoT device having low power consumption of claim 2, wherein in the sleep mode, only the input part is provided with the power, and the sleep mode is removed only in a situation that the input part is configured to receive a reset signal from outside or the battery is reassembled.

5. The IoT device having low power consumption of claim 1, wherein the control part determines whether to access to the repeater corresponding to the repeater information successfully, and the control part is configured to operate in the sleep mode in a situation that accessing to the repeater corresponding to the repeater information fails.

6. The IoT device having low power consumption of claim 5, wherein in the situation that the accessing to the repeater corresponding to the repeater information fails, the control part is configured to scan to determine whether the repeater corresponding to the repeater information exists and tries to access to the repeater in a preset time according to a number of times;

and

in a situation that it is determined that the repeater corresponding to the repeater information is not scanned, the control part is configured to operate in the sleep mode.

7. An operating method of an IoT device having low power consumption which is directly connected to a repeater without a gateway and wirelessly communicates with the terminal, the operating method of the IoT device having low power consumption comprising:

in a transmitting process, operating in a repeater mode in a situation that a preset condition is satisfied, wherein beacons are transmitted in the repeater mode;

in a determining process, determining whether a mode change signal and a repeater information are received in a preset time;

in an accessing process, operating in a terminal mode to try to access to the repeater corresponding to repeater information in a situation that the mode change signal and the repeater information are received in the preset time; and

in a turning-off process, operating in a sleep mode to in a situation that the mode change signal and the repeater information are not received in the preset time, wherein in the sleep mode, at least a part of the IoT device is not provided with power.

8. The operating method of the IoT device having low power consumption of claim 7, further comprising:

in an input process, receiving at least one input from outside.

9. The operating method of the IoT device having low power consumption of claim 8, wherein the preset condition comprises:

a condition that an initial power provided by a power supply part of the IoT device is received, a condition that a battery of the power supply part is reassembled, or a condition that a reset signal inputted from outside is received in the input process.

10. The operating method of the IoT device having low power consumption of claim 8, wherein in the input process, only the input part is provided with the power, and the sleep mode is removed only in a situation that a reset signal from outside is received or a battery of the IoT device is reassembled.

11. The operating method of the IoT device having low power consumption of claim 7, further comprising:

in a control process, determining whether to access to the repeater corresponding to the repeater information successfully, and operating in the sleep mode in a situation that accessing to the repeater corresponding to the repeater information fails.

12. The operating method of the IoT device having low power consumption of claim 11, wherein in the control process, scanning, in the situation that the accessing to the repeater corresponding to the repeater information fails, to determine whether the repeater corresponding to the repeater information exists, and trying to access to the repeater in a preset time according to a number of times;

and

in a situation that it is determined that the repeater corresponding to the repeater information is not scanned, operating in the sleep mode.