阅读说明：本技术 一种篡改电力线上窃密信息和预防干扰的方法 (Method for tampering stealing information on power line and preventing interference ) 是由 张新燕 于 2019-10-21 设计创作，主要内容包括：本发明提供一种篡改电力线上窃密信息和预防干扰的方法,涉及数据防窃技术领域。该篡改电力线上窃密信息和预防干扰的方法,包括以下步骤：1)在火线与零线上均安装电流和电压传感器,然后再将电流和电压传感器与单片机MCU的ADC相连；2)用单片机对电力信息进行高速采样,单片机对电流和电压传感器上的信息进行AD转换,经过计算判断出是否有窃密信息在电力线上传输,如果有窃密信息传输,则计算出窃密信息的波特率、幅值和波形起始时间。通过单片机分析出窃密信息的幅值后,经过计算,从载荷阵列中挑选出合适的载荷,组成一个干扰载荷,单片机驱动以窃密信息同样的频率,同步随机地开关此载荷,在不联网的情况下达到干扰、篡改窃密信息的目的。(The invention provides a method for tampering stealing information on a power line and preventing interference, and relates to the technical field of data stealing prevention. The method for tampering the stealing information on the power line and preventing interference comprises the following steps: 1) current and voltage sensors are arranged on the live wire and the zero wire, and then the current and voltage sensors are connected with an ADC (analog to digital converter) of the MCU (micro control unit); 2) the method comprises the steps of sampling power information at a high speed by using a single chip microcomputer, carrying out AD conversion on information on a current sensor and a voltage sensor by using the single chip microcomputer, judging whether secret stealing information is transmitted on a power line or not through calculation, and calculating the baud rate, the amplitude and the waveform starting time of the secret stealing information if the secret stealing information is transmitted. After the amplitude of the information of stealing the secret is analyzed by the single chip, proper load is selected from the load array through calculation to form an interference load, the single chip drives the load to be synchronously and randomly switched on and off at the same frequency as the information of stealing the secret, and the purpose of interfering and tampering the information of stealing the secret is achieved under the condition of no networking.)

1. A method for tampering with stealing information on a power line and preventing interference is characterized in that: the method comprises the following steps:

1) current and voltage sensors are arranged on the live wire and the zero wire, and then the current and voltage sensors are connected with an ADC (analog to digital converter) of the MCU (micro control unit);

2) the method comprises the steps that high-speed sampling is conducted on power information through a single chip microcomputer, the single chip microcomputer conducts AD conversion on information on a current sensor and a voltage sensor, whether secret stealing information is transmitted on a power line or not is judged through calculation, and if the secret stealing information is transmitted, the baud rate, the amplitude and the waveform starting time of the secret stealing information are calculated;

3) the single chip microcomputer calculates a load value required by generating information with the same amplitude according to the amplitude of the stealing information, and then selects one load or a plurality of load combinations in the load array;

4) and (3) controlling the random on-off of the load or the load combination selected in the step (3) by the singlechip according to the frequency and the initial time calculated in the step (2) to interfere with tampering the encrypted information.

2. The method of claim 1, wherein the method comprises: the current in the step 2 is direct current or alternating current.

3. The method of claim 1, wherein the method comprises: the single chip microcomputer controls the on-off of the load array through the Darlington tube array.

Technical Field

The invention relates to the technical field of data theft prevention, in particular to a method for tampering stealing information on a power line and preventing interference.

Background

In recent years, a technology of stealing data of a computer and a server through a power line under the condition of no networking has appeared, a virus program (a storage medium such as a U disk, an optical disk and a memory card) is implanted into a target computer and the server through the storage medium, the virus converts information collected in the computer into changes of current, power and the like consumed by the computer and the server, and the information data is transmitted out through the power line to steal the data.

At present, the existing socket and PDU do not interfere with the signal loaded on the power line and cannot tamper with the signal, so that data is easy to steal.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a method for tampering stealing information on a power line and preventing interference, and solves the problems that the existing socket and PDU do not interfere with a signal loaded on the power line, the signal cannot be tampered, and data is easy to steal.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a method of tampering with theft information and tamper prevention on a power line, comprising the steps of:

1) current and voltage sensors are arranged on the live wire and the zero wire, and then the current and voltage sensors are connected with an ADC (analog to digital converter) of the MCU (micro control unit);

2) the method comprises the steps that high-speed sampling is conducted on power information through a single chip microcomputer, the single chip microcomputer conducts AD conversion on information on a current sensor and a voltage sensor, whether secret stealing information is transmitted on a power line or not is judged through calculation, and if the secret stealing information is transmitted, the baud rate, the amplitude and the waveform starting time of the secret stealing information are calculated;

3) the single chip microcomputer calculates a load value required by generating information with the same amplitude according to the amplitude of the stealing information, and then selects one load or a plurality of load combinations in the load array;

4) and (3) controlling the random on-off of the load or the load combination selected in the step (3) by the singlechip according to the frequency and the initial time calculated in the step (2) to interfere with tampering the encrypted information.

Preferably, the current in step 2 is direct current or alternating current.

Preferably, the single chip microcomputer controls the on-off of the load array through the Darlington tube array.

The working principle is as follows: the method comprises the steps of using a single chip microcomputer to carry out high-speed sampling on electric power information, monitoring whether data information is loaded on an electric power line or not, immediately analyzing the frequency and amplitude of the information if data is loaded on the electric power line, immediately and synchronously loading random information with the same frequency and amplitude on the electric power line, interfering and tampering with stealing information, installing a load array between a live wire and a zero line, controlling the on-off of each load of the array through a Darlington tube array by the single chip microcomputer, after analyzing the amplitude of the stealing information by the single chip microcomputer, selecting proper loads from the load array through calculation to form an interfering load, driving the single chip microcomputer to synchronously and randomly switch the loads at the same frequency as the stealing information, and achieving the purpose of interfering and tampering with the stealing information.

(III) advantageous effects

The invention provides a method for tampering stealing information on a power line and preventing interference. The method has the following beneficial effects:

the method for tampering the stealing information on the power line and preventing interference comprises the steps of analyzing the amplitude of the stealing information by a single chip microcomputer, selecting a proper load from a load array through calculation to form an interference load, driving the load to be synchronously and randomly switched on and off at the same frequency as the stealing information by the single chip microcomputer, and achieving the purpose of interfering and tampering the stealing information under the condition of no networking.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.