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Frequency modulation method for engineering machinery wireless remote controller

A technology of wireless remote control and construction machinery, which is applied in the direction of instruments, transmission monitoring, signal transmission systems, etc., and can solve problems such as co-frequency interference, inconvenience, hidden dangers of construction machinery operation safety, etc., to solve the problem of co-frequency interference and ensure reliability and the effect of convenience

Inactive Publication Date: 2013-08-07
SHANGHAI HUAXING DIGITAL TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a frequency modulation method for wireless remote controllers of construction machinery to solve the technical problems in the prior art that when multiple machines work at the same time, common frequency interference is likely to occur, which brings safety hazards and inconvenience to the operation of construction machinery

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  • Frequency modulation method for engineering machinery wireless remote controller

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] The basic idea of ​​the present invention is to design a frequency modulation method for a wireless remote controller of construction machinery to solve the problem that in the prior art, when multiple machines work at the same time, it is easy to generate same-frequency interference, which...

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Abstract

The invention discloses a frequency modulation method for an engineering machinery wireless remote controller. The method comprises: S1. presetting multiple channels for signal transmission; S2. before signal transmitting, letting an emitter intercept the state of a first channel; S3. if the first channel is occupied, making the emitter abandon the channel and continue to intercept the state of a next channel till that an idle channel is intercepted or the emitter finds that all the channels are occupied; S4. if the emitter intercepts an idle channel, letting the emitter start to emit signals to a receiver by the intercepted idle channel; and S5. if all the channels are occupied, interrupting triggering, setting the waiting time T of the emitter, and then repeating S2. The method provided in the invention solves the same frequency interference problem of a remote controller system, and ensures reliability and convenience of an engineering machinery wireless remote controller system.

Description

technical field [0001] The invention relates to wireless control technology, in particular to a frequency modulation method for a wireless remote controller of construction machinery. Background technique [0002] At present, many construction machinery projects need to work in relatively harsh environments, so there is a great demand for wireless remote controls for construction machinery. Most wireless remote controls for construction machinery are composed of a transmitter and a receiver, and the transmitter and receiver share a channel. When the transmitter transmits a signal in this channel, if the address code matches and the receiver receives the transmitted signal, the wireless connection is successfully connected. However, when multiple wireless remote controllers work at the same time, due to the need to occupy the same channel, the signal sent first or the transmission signal with relatively high power will occupy the channel, and other transmission signals will ...

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Application Information

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IPC IPC(8): G08C17/02H04B17/00H04B17/382
Inventor 王晓朋李金城刘晓明
Owner SHANGHAI HUAXING DIGITAL TECH
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