Title:
COMMUNICATION SYSTEM, WELDING SYSTEM, AND COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP2016195350
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a communication system, a welding system and a communication method which allow for transmission and reception of information between two wireless communication devices, without being affected by a shelter, even under an environment where direct wireless communication is impossible due to the shelter, or the like, in the wireless communication between two wireless communication devices using radio waves of high frequency.SOLUTION: A remote controller 8 transmits an information signal generated based on the operation of a worker, as a communication signal of 2.4 GHz band, to a repeater 9. Upon receiving the communication signal of 2.4 GHz band, the repeater 9 converts the frequency of the communication signal from 2.4 GHz band into 300 MHz band, and transmits the communication signal to a repeater 9'. The radio waves transmitted from the repeater 9 travel around a shield wall S, due to the propagation characteristics such as diffraction. When the communication signal is received, the repeater 9' converts the frequency of the communication signal from 300 GHz band into 2.4 MHz band, before being transmitted to a welding power supply device 1. The welding power supply device 1 receives the communication signal, and converts the received communication signal into the information signal used for execution of various controls.SELECTED DRAWING: Figure 4
More Like This:
| JPH0713337 | [Name of device] Remote controller |
| JPS586200 | [Title of the Invention] Shingoukenshiyushoshiki |
| WO/2021/241093 | CONTROL DEVICE |
Inventors:
ISHIWAKU MASAKAZU
Application Number:
JP2015074935A
Publication Date:
November 17, 2016
Filing Date:
April 01, 2015
Export Citation:
Assignee:
DAIHEN CORP
International Classes:
H04Q9/00; B23K9/10; H04M11/00
Attorney, Agent or Firm:
Minoru Yoshida
Keita Kobuchi
Keita Kobuchi