Granted Patent B2

US 12,308,681 · App. 18/061,097 · Granted May 20, 2025

Inventors: Trisha M. Luthman (Covington, OH); Vern I. Woodruff, III (Kenton, OH); Jamison S. Frady (Sidney, OH); Steven R. Pulskamp (New Bremen, OH); Christopher R. Graunke (Piqua, OH); Michael Corbett (Wapakoneta, OH)

Assignee: Crown Equipment Corporation

H02J7/0047B66F9/07581G05D1/0016G08B5/38G08C17/02H02J7/00032G08C2201/10

Abstract

Claims (13)

1. A method for opening a wireless connection between a remote control device and a controller on a materials handling vehicle, the remote control device comprising a wireless transmitter, and the materials handling vehicle comprising a receiver for receiving transmissions from the wireless transmitter, the method comprising:

detecting a voltage at one or more charging contacts of the remote control device;

in response to detecting the voltage at the one or more charging contacts, transmitting, via the wireless transmitter of the remote control device, one or more advertisements indicating that the remote control device is available for communicating with nearby devices;

receiving, at the vehicle by the receiver, the transmitted one or more advertisements;

in response to receiving the transmitted one or more advertisements, issuing, by the vehicle, a scan request directed to the specific remote control device associated with the received advertisement;

responding to the scan request, by the remote control device, with a unique identification code;

receiving, at the vehicle by the receiver, the unique identification code;

verifying the unique identification code; and

in response to verifying the unique identification code, opening a wireless connection between the remote control device and the controller.

2. The method of claim 1 , wherein, once the wireless connection is opened, the vehicle wirelessly communicates with the remote control device and the controller is capable of implementing wireless requests received from the remote control device.

3. The method of claim 1 , wherein, if one or more advertisements from two or more remote control devices are received at the vehicle by the receiver prior to the vehicle issuing a scan request directed to the specific remote control device, the vehicle does not issue a scan request and a user is required to remove the remote control device from a charging station located at the vehicle before the method can be performed again.

4. The method of claim 1 , further comprising, prior to the wireless transmitter transmitting one or more advertisements, reducing the signal strength of wireless transmissions from the wireless transmitter from a normal level to a decreased level.

5. The method of claim 4 , further comprising, once the wireless connection is opened between the remote control device and the controller, increasing the signal strength of the wireless transmissions from the wireless transmitter back to the normal level.

Continuity (7)

References Cited (400)