Credentialed wireless fob to control power tool devices

Patent metadata

Field	Value
Publication number	US-12520140-B2
Application number	US-202418438623-A
Country	US
Kind code	B2
Filing date	Feb 12, 2024
Priority date	Aug 13, 2019
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

An electronic processor of a wireless fob is configured to establish a first communication link between the wireless fob and an external device, and receive, over the first communication link, first identification information and credential information of a power tool device from the external device. The electronic processor is further configured to receive, via the wireless transceiver, an identification signal including second identification information from the power tool device. The electronic processor is further configured to identify the power tool device by determining that the first identification information matches with the second identification information. The electronic processor is further configured to transmit the credential information to the power tool device to establish a second communication link between the wireless fob and the power tool device and transmit, over the second communication link, a command to the power tool device to control an operation of the power tool device.

First claim

We claim:

1 . A wireless fob comprising:
a wireless transceiver; a memory; and an electronic processor coupled to the wireless transceiver and to the memory, the electronic processor configured to:
establish, via the wireless transceiver, a first communication link between the wireless fob and an external device,
receive, over the first communication link and from the external device, first identification information of a power tool device, credential information of the power tool device, and a command parameter, wherein the credential information is transmitted to the power tool device by the wireless fob to establish a second communication link over which to send a command, and wherein the command parameter controls how the wireless fob transmits the command to the power tool device over the second communication link established based on the credential information,
store the first identification information and the credential information in the memory,
receive, via the wireless transceiver, an identification signal from the power tool device, the identification signal including second identification information,
identify the power tool device by determining that the first identification information matches with the second identification information,
transmit, via the wireless transceiver, the credential information to the power tool device,
establish the second communication link between the wireless fob and the power tool device based on the credential information, and
transmit, over the second communication link, the command to the power tool device to control an operation of the power tool device, wherein the electronic processor is configured to transmit the command based on the command parameter, wherein the command parameter controls whether (i) the command is transmitted by the wireless fob automatically in response to identifying the power tool device or (ii) the command is transmitted by the wireless fob only in response to the wireless fob receiving a user input.

2 . The wireless fob of claim 1 , wherein the electronic processor is configured to:
receive, over the first communication link and from the external device, an amount of time during which the wireless fob has permission to use the credential information to establish the second communication link; and upon expiration of the amount of time, the electronic processor is configured to cease use of the credential information.

3 . The wireless fob of claim 2 , wherein, after the amount of time has expired, the electronic processor is configured to:
re-establish, via the wireless transceiver, the first communication link between the wireless fob and the external device; receive, over the first communication link and from the external device, re-authentication of the permission to use the credential information to establish the second communication link; transmit, via the wireless transceiver, the credential information to the power tool device; and re-establish the second communication link between the wireless fob and the power tool device based on the credential information.

4 . The wireless fob of claim 1 , wherein the external device includes a handheld portable device;
wherein the first communication link includes a first short-range communication link; and wherein the second communication link includes a second short-range communication link.

5 . The wireless fob of claim 1 , wherein the command includes a time period during which the operation of the power tool device is to be enabled, wherein the power tool device is configured to disable the operation in response to:
the time period expiring, and another command not being received by the power tool device from the wireless fob within the time period.

6 . The wireless fob of claim 1 , wherein the power tool device includes at least one of a group consisting of a first power tool and an insertable wireless communication device of a second power tool, and wherein the command includes a lock/unlock command that prevents/allows operation of a motor of the first power tool or the second power tool in response to a trigger of at least one of the first power tool and the second power tool being actuated.

7 . The wireless fob of claim 1 , wherein the power tool device includes a light device, and wherein the command includes an on/off command that controls a light of the light device to be on/off.

8 . The wireless fob of claim 1 , further comprising an output device configured to provide an output to a user, wherein the electronic processor is configured to:
provide, in response to receiving the identification signal from the power tool device, a notification, via the output device, indicating that the wireless fob has received the identification signal from the power tool device.

9 . The wireless fob of claim 8 , wherein the output device includes at least one of a group consisting of a light-emitting diode (LED), a display screen, a speaker, and a haptic device configured to provide a haptic notification.

10 . The wireless fob of claim 1 , further comprising an input device configured to receive the user input, wherein the electronic processor is configured to receive the user input via the input device;
wherein, in response to receiving the user input via the input device, the electronic processor is configured to (i) transmit the credential information to the power tool device and establish the second communication link between the wireless fob and the power tool device, and (ii) transmit the command to the power tool device over the second communication link.

11 . The wireless fob of claim 1 , wherein, in response to identifying the power tool device by determining that the first identification information matches with the second identification information, the electronic processor is configured to automatically at least one of:
transmit, via the wireless transceiver, the credential information to the power tool device and establish the second communication link between the wireless fob and the power tool device, and transmit, over the second communication link, the command to the power tool device to control the operation of the power tool device.

12 . The wireless fob of claim 1 , wherein the electronic processor is configured to:
receive, over the first communication link, third identification information and second credential information of a second power tool device from the external device; store the third identification information and the second credential information in the memory; receive, via the wireless transceiver, a second identification signal from the second power tool device, the second identification signal including fourth identification information; identify the second power tool device by determining that the third identification information matches the fourth identification information; transmit, via the wireless transceiver, the second credential information to the second power tool device; establish a third communication link between the wireless fob and the second power tool device based on the second credential information; and transmit, over the third communication link, a second command to the second power tool device to control an operation of the second power tool device.

13 . A method of operating a wireless fob to control a power tool device, the method comprising:
establishing, via a wireless transceiver of the wireless fob, a first communication link between the wireless fob and an external device; receiving, with an electronic processor of the wireless fob and from the external device over the first communication link, first identifi

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Davis Anthony
• Dickert Corey J
• Obermann Timothy R

Classifications

• H04W12/69

  Identity-dependent · CPC title

• H04L63/062

  for key distribution, e.g. centrally by trusted party (cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819) · CPC title

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• H04W12/50

  Secure pairing of devices · CPC title

• H04B1/3833

  Hand-held transceivers · CPC title