Safe data transmission circuit

Abstract

The invention discloses a safe data transmission circuit, which comprises a frequency acquisition module 1, a frequency acquisition module 2 and a differential adjustment module, wherein the frequencyacquisition module 1 and the frequency acquisition module 2 use a frequency collector J1 and a frequency collector J2 of which the models are SJ-ADC to acquire carrier signal frequencies of adjacentdata channels; the differential adjustment module uses an operational amplifier AR1, an operational amplifier AR2 and an operational amplifier AR3 to form a differential operational amplifier circuitto perform differential-amplification adjustment on output signals of the frequency acquisition module 1 and the frequency acquisition module 2. Meanwhile, capacitors C3 to C5 are used for forming a frequency selection circuit to screen out a signal with a single frequency; meanwhile, a triode Q1 and a triode Q2 are used for forming a fine adjustment circuit to detect and adjust the potential of the signal; finally, an operational amplifier AR5, a diode D3 and a diode D4 are used for forming a peak value circuit to screen out a peak value signal to trigger a signal emitter E1 to work, the carrier signal frequency of adjacent data channels can be compared and adjusted, and the carrier signal frequency is converted into an error correction signal of a data control terminal.

Description

Technical field [0001] The invention relates to the technical field of data security, in particular to a data security transmission circuit. Background technique [0002] The increase in the amount of data transmission has led to continuous efforts to increase the amount of data transmission. On the basis of increasing the amount of data transmission, it is necessary to ensure data security. At the same time, as the amount of data transmission continues to increase, it is difficult to protect data security. It is becoming larger and larger, and it is necessary to continuously upgrade and optimize data security transmission at the same time. The increase of data transmission volume is through multi-channel synchronous transmission or increased bandwidth. For multi-channel synchronous transmission, it is necessary to simultaneously detect multiple channels at the same time, which is different from traditional single channels. Channel detection can play a security role, while the cu...

AI Technical Summary

Problems solved by technology

[0002]The amount of data transmission is increasing more and more, resulting in continuous efforts to increase the amount of data transmission. On the basis of increasing the amount of data transmission, it is necessary to ensure data security. At the same time, as the amount of data transmission continues to increase, it is becoming more and more difficult to protect data security. At the same time, it is necessary to continuously upgrade and optimize data security transmission. The increase in data transmission volume is achieved through multi-channel synchronous transmission or increased bandwidth. For multi-channel synchronization Transmission requires synchronous detection of multiple channels at the same time. Different from traditional single-channel detection, it can play a security role. However, the current existing technology only performs security encryption detection on each channel on the basis of multi-channel transmission, and cannot To achieve synchronous multi-channel detection, it is easy to increase the time error between channels, resulting in data transmission security error signals, resulting in false alarms for signal transmission

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