CN112152655B

CN112152655B - Big data network communication security control platform

Info

Publication number: CN112152655B
Application number: CN202011125833.2A
Authority: CN
Inventors: 张立
Original assignee: Jiaxing Yunqie Supply Chain Management Co ltd
Current assignee: Jiaxing Yunche Online Technology Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-04-06
Anticipated expiration: 2040-10-20
Also published as: CN112152655A

Abstract

The invention discloses a big data network communication safety control platform, which comprises a remote transmission communication module, a data processing module, an MCU (microprogrammed control unit) controller and a data storage unit, wherein the data processing module comprises a signal matching circuit, a double-path regulation and control filter circuit and an acquisition control circuit; then the signal is sent to a double-path regulation and control filter circuit for amplification, so that the signal transmission precision is improved, and the self-excitation and additive noise interference of the circuit are well inhibited; designing an acquisition control circuit to monitor the system in real time, and forming safety protection on the communication network system when high-strength electromagnetic signals invade in the communication network; the MCU controller is communicated with the upper computer through an Ethernet, and calls and analyzes data in the data storage unit by using a big data analysis technology, so that the safe and stable operation of a communication network system is guaranteed.

Description

Big data network communication security control platform

Technical Field

The invention relates to the technical field of communication safety, in particular to a big data network communication safety control platform.

Background

With the rapid development of internet technology, the structure of a communication network system becomes more and more complex, and the security risks in the field of communication networks are increasing, which severely limits the stable development and breakthrough of communication networks. Compared with wired communication, the wireless communication is more vulnerable to security attacks due to the inherent broadcast characteristics and the openness of a transmission medium, so that the first security barrier of the wireless communication, namely physical layer security, should be set up from a physical layer by using technologies such as channel coding and signal processing in full combination with the basic characteristics of the wireless communication.

In wireless communications, however, the transmitted and received signals should be suitable for spatial transmission. Therefore, the signal processed and transmitted by the communication apparatus is a high-frequency signal subjected to modulation processing, and such a signal has a narrow-band characteristic. Moreover, through long-distance communication transmission, signals are attenuated and interfered, and signals reaching a receiving device are very weak high-frequency narrow-band signals, so that the problems of signal distortion, large noise interference amount and the like are easily generated, the quality of communication signal reception is affected, and the safety of the whole communication network system is threatened.

Disclosure of Invention

In view of the above situation, an object of the present invention is to provide a security control platform for big data network communication.

The technical scheme for solving the problem is as follows: the big data network communication safety control platform comprises a remote transmission communication module, a data processing module, an MCU (microprogrammed control unit) controller and a data storage unit, wherein the data processing module comprises a signal matching circuit, a two-way regulation and control filter circuit and an acquisition control circuit, and the signal matching circuit is used for performing impedance matching on an output signal of the remote transmission communication module and then sending the output signal into the two-way regulation and control filter circuit; the two-way regulation and filtering circuit comprises an operational amplifier AR1, wherein the non-inverting input terminal of the operational amplifier AR1 is connected with the output terminal of the signal matching circuit and one end of a capacitor C4, the other end of the capacitor C4 is connected with the base of a transistor VT2 and the emitter of the VT3, and is connected with the emitter of a transistor VT2 through a resistor R4, the inverting input terminal of the operational amplifier AR1 is connected with one ends of resistors R5 and R6, the other end of the resistor R5 is grounded, the other end of the resistor R6 is connected with the cathode of a zener diode DZ1 and the output terminal of the operational amplifier AR1 through a capacitor C6, the anode of the zener diode DZ1 is grounded, the output terminal of the operational amplifier AR1 is further connected with the control terminal of the acquisition control circuit, and is connected with the collector of the transistor VT1, the base of the VT1 and one end of the resistor R1, the other end of the resistor R1 is connected with the base of the transistor VT1 and the collector of the transistor VT1 through, an emitter of the triode VT4 is connected with the input end of the acquisition control circuit; the acquisition control circuit is used for acquiring an emitter output signal of the triode VT4, and controlling the conduction of the MOS tube Q2 after sampling, holding, comparing and amplifying, the drain electrode of the MOS tube Q2 is used as the control end of the acquisition control circuit, and the output end of the acquisition control circuit is connected with the MCU controller.

Furthermore, the signal matching circuit comprises a resistor R1 and a capacitor C1, one end of the resistor R1 and one end of the capacitor C1 are connected with the signal output end of the remote communication module, the other end of the resistor R1 and the other end of the capacitor C1 are connected with the emitter of the triode VT1 and one end of the resistor R2, the base of the triode VT1 is connected with the other end of the resistor R2 and one end of the inductor L1 and one end of the capacitor C2, the collector of the triode VT1 is connected with the other end of the capacitor C2 and one end of the capacitor C3 and is grounded through the resistor R3, and the other ends of the inductor L1 and the capacitor C3 are connected with the input end of the dual.

Further, the acquisition control circuit comprises a rheostat RP1, a pin 1 of the rheostat RP1 is connected with an emitter of a triode VT4 and one end of a resistor R10, the other end of the resistor R10 is connected with a non-inverting input end of an operational amplifier AR3 through a capacitor C7, an inverting input end and an output end of the operational amplifier AR3 are connected with the MCU controller, pins 2 and 3 of the rheostat RP1 are connected with the pin 1 of a JFET tube and one ends of resistors R11 and R13 through a capacitor C8 and are grounded through a resistor R12, the pin 2 of the JFET tube is connected with the other end of a resistor R13 and is connected with a PWM output end of the MCU controller through a diode D1, the other end of the resistor R11 is grounded, the pin 3 of the JFET tube is connected with the non-inverting input end of the operational amplifier AR2, the inverting input end of the operational amplifier AR2 is connected with one ends of resistors R14 and R9, the other end of the resistor R14 is connected with a +5V power supply, the other, the source of the MOS transistor Q2 is grounded, and the drain of the MOS transistor Q2 is connected to the output terminal of the operational amplifier AR 1.

Through the technical scheme, the invention has the beneficial effects that:

1. after receiving a wireless communication signal, the remote transmission communication module firstly sends the wireless communication signal to the signal matching circuit for RLC network impedance matching, so that the influence of noises such as vibration, temperature, external electromagnetism and the like is reduced, the maximum power transmission of the signal is ensured, and the wireless communication module is not easily interfered by external noises;

2. the dual-path regulation and control filter circuit utilizes the compound triode to quickly amplify the signal after impedance matching, so that the signal amplification efficiency is improved, meanwhile, the band-pass filter principle is utilized to effectively inhibit the mixing of clutter of other frequency bands in the amplification process, and the signal transmission precision is effectively improved;

3. an operational amplifier AR1 is introduced to the input end of the two-way regulation and control filter circuit to amplify the branched signals, the temperature drift of the operational amplifier is effectively inhibited by using a resistance-capacitance negative feedback principle, and the composite triode is driven to be conducted after voltage stabilization regulation and control, so that the whole two-way regulation and control filter circuit works in a relatively stable working state, and the self-excitation and additive noise interference of the circuit are well inhibited;

4. the design collection control circuit carries out real time monitoring to the system, when having high strength electromagnetic signal invasion in the communication network, through the switch-on of sample hold processing with the comparison amplification back drive MOS pipe Q2, thereby will carry the output signal short circuit of putting ware AR1, then make compound triode conduction end lose the electricity and end, double-circuit regulation and control filter circuit stops to back level circuit output signal, in time prevent the transmission of unusual attack signal effectively, make the communication network system form effective safety protection on the physical layer.

Drawings

FIG. 1 is a system connection block diagram of the present invention.

Fig. 2 is a schematic diagram of a signal matching circuit of the present invention.

Fig. 3 is a schematic diagram of the connection between the two-way regulation filter circuit and the acquisition control circuit according to the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, the big data network communication security control platform comprises a remote transmission communication module, a data processing module, an MCU controller and a data storage unit, wherein the data processing module comprises a signal matching circuit, a two-way regulation and filtering circuit and an acquisition control circuit, and the signal matching circuit is used for performing impedance matching on an output signal of the remote transmission communication module and then sending the output signal into the two-way regulation and filtering circuit. In a specific arrangement, the remote communication module is a communication base station or a wireless receiver, for example, a model nRF24L01 wireless receiver can be adopted. The MCU controller is connected with the data storage unit through a data bus, adopts an access scheme combining an MCU and a TCP/IP protocol chip, carries out Ethernet communication with the upper computer through a twisted pair, and carries out data transceiving through the Ethernet.

After receiving the wireless communication signal, the remote communication module is easily affected by noise such as vibration, temperature, external electromagnetism, and the like, so that the signal matching circuit is adopted to perform impedance matching on the wireless receiving signal. As shown in fig. 2, the specific structure of the signal matching circuit includes a resistor R1 and a capacitor C1, one end of the resistor R1 and one end of the capacitor C1 are connected to a signal output end of the remote communication module, the other ends of the resistor R1 and the capacitor C1 are connected to an emitter of a transistor VT1 and one end of a resistor R2, a base of the transistor VT1 is connected to the other end of a resistor R2 and one end of an inductor L1 and one end of a capacitor C2, a collector of the transistor VT1 is connected to the other end of a capacitor C2 and one end of a capacitor C3 and is grounded through a resistor R3, and the other ends of the inductor L1 and the capacitor C3 are connected to an input. The specific working principle of the signal matching circuit is as follows: the resistor R1 and the capacitor C1 are connected in parallel to form RC impedance, then signals are enhanced by the triode VT1 to drive the LC impedance of a parallel resonance circuit formed by the inductor L1, the capacitors C2 and C3, so that the whole signal matching circuit forms an RLC network to perform impedance matching on wireless receiving signals, the impedance matched signals are equal to the characteristic impedance of a wireless signal receiving end, maximum power transmission of the signals is guaranteed, and the signals are not easily interfered by external noise.

The signal after impedance matching is sent to a dual-path regulation and filtering circuit for amplification processing, as shown in fig. 3, the dual-path regulation and filtering circuit comprises an operational amplifier AR1, the non-inverting input terminal of the operational amplifier AR1 is connected with the output terminal of the signal matching circuit and one end of a capacitor C4, the other end of the capacitor C4 is connected with the base of a triode VT2 and the emitter of a VT3, and is connected with the emitter of a triode VT2 through a resistor R4, the inverting input terminal of the operational amplifier AR1 is connected with one end of resistors R5 and R6, the other end of the resistor R5 is grounded, the other end of the resistor R6 is connected with the cathode of a zener diode DZ1 and the output terminal of an operational amplifier AR1 through a capacitor C6, the anode of the zener diode DZ1 is grounded, the output terminal of the operational amplifier AR1 is also connected with the control terminal of an acquisition control circuit, and is connected with the collector of the triode VT 9, the base of VT3 and one end of, and is grounded through a capacitor C5, the collector of the triode VT4 is connected with the collector of the triode VT3 through a resistor R8, and the emitter of the triode VT4 is connected with the input end of the acquisition control circuit.

In the processing process of the double-path regulation and control filter circuit, the triode VT2 and the triode VT3 form a composite triode for quickly amplifying the signals after impedance matching, and a second-order RC band-pass filter network formed by the capacitors C4 and C5 and the resistors R4 and R9 is added in the amplification process, and the network center frequency of the second-order RC band-pass filter network is consistent with the high-frequency and narrow-band frequency of the wireless receiving signals, so that clutter mixing of other frequency bands is well inhibited, and the signal transmission precision is effectively improved.

Because signals can generate self-excited interference in the amplification and filtering process, and electronic devices in the circuit can generate additive interference on communication signals due to thermal noise, an operational amplifier AR1 is introduced into the input end of the two-way regulation and filtering circuit to amplify branch signals, a resistor R6 and a capacitor C6 are added to the feedback end of the operational amplifier AR1 to form resistance-capacitance negative feedback, the temperature drift of the operational amplifier is effectively inhibited, and a voltage stabilizing diode DZ1 is adopted to stabilize the output signals of the operational amplifier AR1, so that stable driving signals are formed and applied to the conduction end of the composite triode, namely the output signals of the operational amplifier AR1 are regulated and controlled through the voltage stabilizing diode R7 to drive the triodes VT2 and VT3 to be conducted, the working stability of the composite triode is greatly improved, and the influence of additive noise is inhibited.

The output signal of the composite triode is finally converged into the triode VT4 for amplification and output, in order to avoid malicious attack of high-strength electromagnetic signals in a wireless channel, the acquisition control circuit is used for acquiring the output signal of the emitter of the triode VT4 and controlling the conduction of the MOS tube Q2 after sampling, holding, comparing and amplifying, the drain electrode of the MOS tube Q2 is used as the control end of the acquisition control circuit, and the output end of the acquisition control circuit is connected with the MCU controller.

The specific structure of the acquisition control circuit further comprises a rheostat RP1, a pin 1 of the rheostat RP1 is connected with an emitter of a triode VT4 and one end of a resistor R10, the other end of the resistor R10 is connected with a non-inverting input end of an operational amplifier AR3 through a capacitor C7, an inverting input end and an output end of the operational amplifier AR3 are connected with an MCU controller, pins 2 and 3 of the rheostat RP1 are connected with a pin 1 of a JFET Q1 and one ends of resistors R11 and R13 through a capacitor C8 and are grounded through a resistor R12, a pin 2 of the JFET Q1 is connected with the other end of a resistor R13 and is connected with a PWM output end of the MCU controller through a diode D1, the other end of the resistor R11 is grounded, a pin 3 of the JFET Q1 is connected with a non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one ends of the resistors R1 and the grid electrode of the MOS transistor AR1, the source of the MOS transistor Q2 is grounded, and the drain of the MOS transistor Q2 is connected to the output terminal of the operational amplifier AR 1.

The specific working flow of the acquisition control circuit is as follows: the resistor R10 and the rheostat RP1 are connected in parallel to form shunt for the output signal of the triode VT4, wherein the shunt signal flowing through the rheostat RP1 is used for sampling, and the amplitude of the sampling signal can be changed by adjusting the resistance value of the rheostat RP1, so that the wireless signal receiving under different powers can be well adapted. The shunt signal is subjected to high-pass filtering by an RC formed by a capacitor C8 and a resistor R11 and then is sent to a JFET tube Q1 for sampling, and a PWM logic voltage output by the MCU controller controls a sampling and holding circuit to work, so that the sampling error is effectively reduced.

The output signal of JFET pipe Q1 is sent to the non inverting input end of fortune amplifirer AR2, fortune amplifirer AR2 application comparator principle judges whether have high-strength electromagnetic signal, and the concrete principle is: the resistors R14 and R15 are connected in series to divide the voltage of the +5V power supply, so that a threshold voltage is formed at the inverting input terminal of the operational amplifier AR 2. When the communication network signal is normally received, the amplitude of the output signal of the JFET tube Q1 is smaller than the threshold voltage, the operational amplifier AR2 outputs a low-level signal, the grid of the MOS tube Q2 is powered off and is not conducted, the output of the operational amplifier AR1 is not affected, the two-way regulation and control filter circuit is in a normal working state, and the system operates normally. Meanwhile, the signal flowing through the resistor R10 is coupled by the capacitor C7 and then sent to the operational amplifier AR3, and the operational amplifier AR3 outputs the signal in an isolated manner by using the voltage follower principle, so that the MCU controller is prevented from electric interference when receiving the signal. When high-strength electromagnetic signal interference exists in a communication network, strong abnormal signals rush in to enable the amplitude of an output signal of the triode VT4 to be instantly improved, then the amplitude of a sampling signal of the JFET tube Q1 is increased to be higher than threshold voltage, the operational amplifier AR2 overturns and outputs a high-level signal, the grid of the MOS tube Q2 is electrified and conducted, the output signal of the operational amplifier AR1 is short-circuited, then the conduction end of the composite triode is cut off in a power-off mode, the two-way regulation and control filter circuit stops outputting signals backwards, and malicious attack of the high-strength electromagnetic signal is effectively prevented.

When the wireless remote transmission communication module is used specifically, after receiving a wireless communication signal, the remote transmission communication module firstly sends the wireless communication signal to the signal matching circuit for RLC network impedance matching, so that the influences of noises such as vibration, temperature, external electromagnetism and the like are reduced, the maximum power transmission of the signal is ensured, and the wireless remote transmission communication module is not easily interfered by external noises. The signal after impedance matching is sent into the double-circuit regulation and control filter circuit and is carried out the amplification processing, and the double-circuit regulation and control filter circuit utilizes compound triode to carry out the rapid amplification to the signal after impedance matching, promotes signal amplification efficiency, utilizes the band-pass filter principle effectively to restrain the sneaking into of other frequency band clutter simultaneously in the amplification process, effectively promotes signal transmission precision. Meanwhile, an operational amplifier AR1 is introduced to the input end of the two-way regulation and control filter circuit to amplify branch signals, the temperature drift of the operational amplifier is effectively inhibited by using a resistance-capacitance negative feedback principle, and the composite triode is driven to be conducted after voltage stabilization regulation and control, so that the whole two-way regulation and control filter circuit works in a relatively stable working state, and the self-excitation and additive noise interference of the circuit are well inhibited. The design collection control circuit carries out real time monitoring to the system, when having high strength electromagnetic signal invasion in the communication network, through the switch-on of sample hold processing with the comparison amplification back drive MOS pipe Q2, thereby will carry the output signal short circuit of putting ware AR1, then make compound triode conduction end lose the electricity and end, double-circuit regulation and control filter circuit stops to back level circuit output signal, in time prevent the transmission of unusual attack signal effectively, make the communication network system form effective safety protection on the physical layer.

Output signals of the two-way regulation and control filter circuit are output through capacitance coupling and isolation and then are sent to the MCU controller, and the MCU controller converts the signals into digital quantity by utilizing the internal AD conversion module and stores the digital quantity in the data storage unit. Meanwhile, the MCU controller is in Ethernet communication with the upper computer and calls and analyzes data in the data storage unit by applying a mature big data analysis technology, so that the safety state of system communication data is monitored in real time, the health condition of the system can be timely and accurately evaluated, the functions of real-time fault diagnosis, real-time data analysis, historical data storage and the like are realized, and the safe and stable operation of a communication network system is guaranteed.

While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.

Claims

1. Big data network communication safety control platform, including teletransmission communication module, data processing module, MCU controller and data memory cell, its characterized in that: the data processing module comprises a signal matching circuit, a two-way regulation and control filter circuit and an acquisition control circuit, wherein the signal matching circuit is used for performing impedance matching on an output signal of the remote transmission communication module and then sending the output signal into the two-way regulation and control filter circuit;

the two-way regulation and filtering circuit comprises an operational amplifier AR1, wherein the non-inverting input terminal of the operational amplifier AR1 is connected with the output terminal of the signal matching circuit and one end of a capacitor C4, the other end of the capacitor C4 is connected with the base of a transistor VT2 and the emitter of the VT3, and is connected with the emitter of a transistor VT2 through a resistor R4, the inverting input terminal of the operational amplifier AR1 is connected with one ends of resistors R5 and R6, the other end of the resistor R5 is grounded, the other end of the resistor R6 is connected with the cathode of a zener diode DZ1 and the output terminal of the operational amplifier AR1 through a capacitor C6, the anode of the zener diode DZ1 is grounded, the output terminal of the operational amplifier AR1 is further connected with the control terminal of the acquisition control circuit, and is connected with the collector of the transistor VT1, the base of the VT1 and one end of the resistor R1, the other end of the resistor R1 is connected with the base of the transistor VT1 and the collector of the transistor VT1 through, an emitter of the triode VT4 is connected with the input end of the acquisition control circuit;

the acquisition control circuit is used for acquiring an emitter output signal of the triode VT4, and controlling the conduction of an MOS tube Q2 after sampling, holding, comparing and amplifying, the drain electrode of the MOS tube Q2 is used as the control end of the acquisition control circuit, and the output end of the acquisition control circuit is connected with the MCU controller;

the signal matching circuit comprises a resistor R1 and a capacitor C1, one end of the resistor R1 and one end of the capacitor C1 are connected with a signal output end of the remote transmission communication module, the other ends of the resistor R1 and the capacitor C1 are connected with an emitter of a triode VT1 and one end of a resistor R2, a base of the triode VT1 is connected with the other end of a resistor R2 and one end of an inductor L1 and one end of a capacitor C2, a collector of the triode VT1 is connected with the other end of a capacitor C2 and one end of a capacitor C3 and is grounded through a resistor R3, and the other ends of the inductor L1 and the capacitor C3 are connected with an input end of the dual-;

the acquisition control circuit comprises a rheostat RP1, a pin 1 of the rheostat RP1 is connected with an emitter of a triode VT4 and one end of a resistor R10, the other end of the resistor R10 is connected with a non-inverting input end of an operational amplifier AR3 through a capacitor C7, an inverting input end and an output end of the operational amplifier AR3 are connected with the MCU controller, pins 2 and 3 of the rheostat RP1 are connected with the pin 1 of a JFET tube and one ends of resistors R11 and R13 through a capacitor C8 and are grounded through a resistor R12, the pin 2 of the JFET tube is connected with the other end of a resistor R13 and is connected with a PWM output end of the MCU controller through a diode D1, the other end of the resistor R11 is grounded, the pin 3 of the JFET tube is connected with a non-inverting input end of the operational amplifier AR2, the inverting input end of the operational amplifier AR2 is connected with one ends of resistors R14 and R9, the other end of the resistor R14 is connected with a +5V power supply, the source of the MOS transistor Q2 is grounded, and the drain of the MOS transistor Q2 is connected to the output terminal of the operational amplifier AR 1.