A Telegraph Keying Signal Transmission and Processing System and Method with Adjustable Acquisition and Reception Frequency

Abstract

The invention discloses a telegraph keying signal transmission and processing system and method capable of adjusting acquisition and receiving frequencies, and belongs to the field of telegraph technology. The system includes a communication-connected computer, a communication unit, a keying signal acquisition unit and a telegraph keying device, and is used for real-time collection, transmission and storage of the key state of the multi-channel keying device. The keying signal acquisition unit includes: an acquisition frequency setting module, a signal acquisition module; the communication unit includes: a buffer calculation module, a first communication module, a buffer module, and a second communication module; the computer includes: a receiving frequency setting module, the second data packet receiving module. By dynamically setting the collection frequency of the collection device and the reception frequency of the receiving device, the collection and reception frequency can be independently and dynamically adjusted to meet the different scale and quality requirements of the operator training system.

Description

technical field [0001] The invention relates to a telegraph keying signal transmission and processing system and method capable of adjusting collection and receiving frequencies, and belongs to the field of telegraph technology. Background technique [0002] In the network training system for telegraphers, keying devices of different scales, such as 36, 72, 144, and 288 channels, can be provided. The practical application shows that the acquisition frequency of 1000 / s (that is, sampling once in 1ms) can basically restore the square wave signal of the key state without distortion, and the acquisition frequency of 2000 / s (that is, sampling once in 500us) can achieve better results. If high-frequency (500us) acquisition is used, then in the case of access to many keying devices (such as 288 channels), the burden on the communication network and the computer will increase sharply, so that it is too late to deal with frequent communications and calculations. not working properly...

AI Technical Summary

Problems solved by technology

If high-frequency (500us) acquisition is used, then in the case of access to many keying devices (such as 288 channels), the burden on the communication network and the computer will increase sharply, so that it is too late to handle frequent communications and calculations. not working properly

However, the existing operator training system often adopts a fixed acquisition frequency, which is difficult to meet the needs of different scales and different signal acquisition quality

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