# US 10,482,760 B2 · Method for linking a second remote control unit to a first remote control unit

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- Number: US 10,482,760 B2
- Document ID: US10482760B2
- Status: Granted
- Kind: B2
- Application number: 16/205,557
- Filed: 2018-11-30
- Published: 2019-06-06
- Granted: 2019-11-19
- Earliest claimed: 2017-12-01
- Assignees: Jungheinrich Aktiengesellschaft
- Applicants: Jungheinrich Aktiengesellschaft
- Inventors: Oliver Goepner
- Web page: https://patentgrep.com/patent/US10482760B2

## CPC

- G08C 17/02: using a radio link
- G08C 2201/10: Power supply of remote control devices
- G08C 2201/20: Binding and programming of remote control devices
- G08C 2201/21: Programming remote control devices via third means
- G08C 2201/40: Remote control systems using repeaters, converters, gateways
- G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G)

## Abstract

A method for linking a second remote control unit of an industrial truck to a first remote control unit of the industrial truck comprises linking the first remote control unit to a transceiver unit using a bidirectional radio connection. The unique address of the second remote control unit is transmitted to the transceiver unit by near field communication. The unique address of the second remote control unit is transmitted by the transceiver unit to the first remote control unit via the bidirectional radio connection. The first remote control unit is linked to the second remote control unit using the unique address of the second remote control unit. A command is transmitted from the second remote control unit to the first remote control unit and the first remote control unit transmits the command by radio to the transceiver unit.

## Claims

### Claim 1

A method for linking a second remote control unit of an industrial truck to a first remote control unit of the industrial truck comprising:
linking the first remote control unit to a transceiver unit using a bidirectional radio connection;
transmitting a unique address of the second remote control unit to the transceiver unit by near field communication;
transmitting the unique address of the second remote control unit by the transceiver unit to the first remote control unit via the bidirectional radio connection;
linking the first remote control unit to the second remote control unit using the unique address of the second remote control unit; and
transmitting a command from the second remote control unit to the first remote control unit, wherein the first remote control unit transmits the command by radio to the transceiver unit.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the first remote control unit comprises one of a battery and an accumulator.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the second remote control unit comprises a control element configured to generate power for transmitting the command when actuated.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the first and second remote control units each comprise a module for near field communication with the transceiver unit.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the first remote control unit is linked to the transceiver unit by near field communication, and wherein the first remote control unit is configured to send a unique address to the transceiver unit.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the transceiver unit assigns unique addresses to the first and second remote control units.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the first remote control unit is configured to disconnect the link to the second remote control unit when the first remote control unit does not have a radio contact with the transceiver unit for a predetermined duration of time.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the first remote control unit is configured to disconnect the link to the second remote control unit when the transceiver has been turned off.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the first remote control unit communicates by long-distance radio with the transceiver unit.