CN113239337A - Financial data safety management system based on block chain - Google Patents
Financial data safety management system based on block chain Download PDFInfo
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- CN113239337A CN113239337A CN202110745480.4A CN202110745480A CN113239337A CN 113239337 A CN113239337 A CN 113239337A CN 202110745480 A CN202110745480 A CN 202110745480A CN 113239337 A CN113239337 A CN 113239337A
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- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
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Abstract
The invention provides a financial data security management system based on a block chain, which comprises a data decomposer, a first block chain memory, a second block chain memory, a third block chain memory, a fourth block chain memory, a fifth block chain memory, a sixth block chain memory, a seventh block chain memory, an eighth block chain memory, an image recognizer, an image processor, a controller, a filter, a voltage generator and a display, wherein the data decomposer decomposes received data and then respectively transmits the decomposed data to each block chain memory, the image recognizer and the image processor are used for carrying out face recognition on a user accessing the data, the image processor adopts image information in a background area to compensate image information of a face, the user uses the voltage generator as a key for accessing the data, a preset voltage value is stored in the voltage generator, and the filtered voltage information is compared with standard voltage information to identify whether the user uses a correct access And asking for the right.
Description
Technical Field
The invention relates to the field of block chains, in particular to a financial data security management system based on a block chain.
Background
The general model of the blockchain system consists of 4 main parts, namely, a block, an account, a consensus and an intelligent contract. At intervals, the block chain packs data generated by each participating body on the chain into a data block, and the data blocks are sequentially arranged according to a time sequence to form the chain of data blocks. The participant identity is generated into an account through an asymmetric key and used for recording current information, and each participant has the same data chain and cannot be tampered unilaterally. Any information modification can be carried out only by the principal agreeing party in an agreed proportion, new information can be added, old information cannot be deleted or modified, and the rules are agreed among multiple nodes through an algorithm to form 'consensus'. The encoding on the blockchain defines commitments between participants and executes automatically, a part of which is called "smart contracts".
The block chain has the characteristics of decentralization, no need of prior trust, openness, autonomy and the like, so that the block chain and finance have internal coupling, and the finance becomes a key field for falling to the ground of block chain application. However, the block chain has defects in technical maturity and the like, and the theoretical advantages are not fully exerted in the financial field.
In the prior art, the storage and reading of the financial data have the risk of being stolen, but the storage and reading of the financial data cannot be carried out in a high-precision and effective mode.
Disclosure of Invention
Therefore, in order to overcome the above problems, the present invention provides a financial data security management system based on a blockchain, which includes a data decomposer, a first blockchain memory, a second blockchain memory, a third blockchain memory, a fourth blockchain memory, a fifth blockchain memory, a sixth blockchain memory, a seventh blockchain memory, an eighth blockchain memory, an image recognizer, an image processor, a controller, a filter, a voltage generator, and a display.
Wherein, the output end of the data decomposer is respectively connected with the input end of the first blockchain memory, the input end of the second blockchain memory, the input end of the third blockchain memory, the input end of the fourth blockchain memory, the input end of the fifth blockchain memory, the input end of the sixth blockchain memory, the input end of the seventh blockchain memory and the input end of the eighth blockchain memory, the output end of the image recognizer is connected with the input end of the image processor, the output end of the image processor is connected with the input end of the controller, the output end of the voltage generator is connected with the input end of the filter, the output end of the filter is connected with the input end of the controller, the first blockchain memory, the second blockchain memory, the seventh blockchain memory and the eighth blockchain memory, The third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory are all bidirectionally connected with the controller, and the output end of the controller is connected with the input end of the display.
Wherein, the data to be stored is input into the data decomposer, the data decomposer decomposes the received data and then transmits the decomposed data to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, the image recognizer is used for extracting the face information of the user, the image recognizer transmits the extracted image information to the image processor, the image processor transmits the processed image to the controller, the controller stores the image information of the person who is allowed to access the data, and the controller compares the received image information with the image information of the person who is allowed to access the data, if the reference voltage value is consistent with the reference voltage value, the controller generates a first trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, a user uses a voltage generator as a key for accessing data, a preset voltage value is stored in the voltage generator, the voltage generator transmits the generated preset voltage value to the filter, the filter filters the preset voltage value generated by the voltage generator and transmits the filtered signal to the controller, a standard voltage value is stored in the controller, the controller compares the received voltage value with the standard voltage value, and if the reference voltage value is consistent with the reference voltage value, the controller generates a second trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, and the data in the first blockchain memory and the second blockchain memory are transmitted to the display through the controller only after the first trigger signal and the second trigger signal are received.
Preferably, the filter includes an amplifying circuit and a feedback circuit, wherein the amplifying circuit includes a first operational amplifier OP1, a fifth resistor R5, a third resistor R3, a fourth resistor R4 and a sixth resistor R6, and the feedback circuit includes a second operational amplifier OP2, a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2.
Wherein an output end of the voltage sensor is connected to a first end of the fifth resistor R5, the reference voltage V2 is connected to a first end of the third resistor R3, a second end of the fifth resistor is connected to an inverting input end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a non-inverting input end of the first operational amplifier OP1, a second end of the fifth resistor R5 is connected to a first end of the sixth resistor R6, a second end of the sixth resistor R6 is connected to an output end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a first end of the fourth resistor R4, a second end of the fourth resistor R4 is connected to a first end of the second capacitor C2, a second end of the second capacitor C2 is connected to a first end of the first capacitor C1, and a second end of the first capacitor C1 is connected to a first end of the first resistor R1, a first end of the second resistor R2 is connected to a second end of the second capacitor C2, a second end of the second resistor R2 is grounded, an inverting input terminal of the second operational amplifier OP2 is connected to the first end of the first resistor R1, a second end of the first resistor R1 is connected to an output terminal of the first operational amplifier OP1, a non-inverting input terminal of the second operational amplifier OP2 is grounded, an output terminal of the second operational amplifier OP2 is connected to a second end of the fourth resistor R4, and an output terminal of the first operational amplifier OP1 is connected to an input terminal of the controller.
Preferably, the data to be stored is input to the data decomposer, and the data decomposer decomposes the received data and then transmits the decomposed data to the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory, the seventh block chain memory, and the eighth block chain memory, respectively.
The data to be stored is divided into customer name information and account information, the data decomposer divides the customer name information into six pieces of decomposition information and then respectively stores the decomposition information in the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory and the sixth block chain memory, the data decomposer stores the customer account information in the seventh block chain memory, the data decomposer sequentially stores the decomposition information in the eighth block chain memory, and when the information is read, the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory and the like are rearranged according to the sequence information stored in the eighth block chain memory, And data in the sixth blockchain memory and the seventh blockchain memory are used for acquiring customer information.
Preferably, the data decomposer divides the customer name information into six pieces of decomposition information, and stores the six pieces of decomposition information in the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, and the sixth block chain memory, respectively.
The data decomposer decomposes the customer name into phonetic alphabets and stores the phonetic alphabets in the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory and the sixth blockchain memory in sequence according to the data stored in the eighth blockchain memory.
Preferably, the image recognizer is configured to extract face information of a user, the image recognizer transmits the extracted image information to the image processor, and the image processor transmits a processed image to the controller, where the image processor performs image processing on the received image by the following steps:
the first step is as follows: carrying out image edge extraction on the image information f (x, y) acquired by the image recognizer;
the second step is that: dividing the image subjected to edge extraction into areas, wherein a face image area is marked as g (x, y), and a background image area is marked as k (x, y);
the third step: and compensating the face image area by using the background image area, wherein the compensated image is marked as s (x, y) and then has,
wherein s is1(x, y) and s2(x, y) is a compensation function.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a financial data security management system based on a block chain, which comprises a data decomposer, a first block chain memory, a second block chain memory, a third block chain memory, a fourth block chain memory, a fifth block chain memory, a sixth block chain memory, a seventh block chain memory, an eighth block chain memory, an image recognizer, an image processor, a controller, a filter, a voltage generator and a display, wherein the data decomposer decomposes received data and then respectively transmits the decomposed data to the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory, the seventh block chain memory and the eighth block chain memory, the image recognizer and the image processor are used for carrying out face recognition on a user accessing the data, and the invention is characterized in that the image processor adopts image information of a background area to compensate image information of a face, the method is characterized in that a voltage generator is used as a key for accessing data by a user, a preset voltage value is stored in the voltage generator, the voltage generator transmits the generated preset voltage value to a filter, the filtered voltage information is compared with standard voltage information to identify whether the user uses correct access authority, and the method is different from the prior art in that a password and the like are adopted, so that the method can be conveniently updated at regular time and can provide a power supply for a controller.
Drawings
FIG. 1 is a schematic diagram of a blockchain-based financial data security management system of the present invention;
fig. 2 is a circuit diagram of the filter of the present invention.
Detailed Description
The block chain based financial data security management system provided by the invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the financial data security management system based on a blockchain according to the present invention includes a data splitter, a first blockchain memory, a second blockchain memory, a third blockchain memory, a fourth blockchain memory, a fifth blockchain memory, a sixth blockchain memory, a seventh blockchain memory, an eighth blockchain memory, an image identifier, an image processor, a controller, a filter, a voltage generator, and a display.
Wherein, the output end of the data decomposer is respectively connected with the input end of the first blockchain memory, the input end of the second blockchain memory, the input end of the third blockchain memory, the input end of the fourth blockchain memory, the input end of the fifth blockchain memory, the input end of the sixth blockchain memory, the input end of the seventh blockchain memory and the input end of the eighth blockchain memory, the output end of the image recognizer is connected with the input end of the image processor, the output end of the image processor is connected with the input end of the controller, the output end of the voltage generator is connected with the input end of the filter, the output end of the filter is connected with the input end of the controller, the first blockchain memory, the second blockchain memory, the seventh blockchain memory and the eighth blockchain memory, The third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory are all bidirectionally connected with the controller, and the output end of the controller is connected with the input end of the display.
Wherein, the data to be stored is input into the data decomposer, the data decomposer decomposes the received data and then transmits the decomposed data to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, the image recognizer is used for extracting the face information of the user, the image recognizer transmits the extracted image information to the image processor, the image processor transmits the processed image to the controller, the controller stores the image information of the person who is allowed to access the data, and the controller compares the received image information with the image information of the person who is allowed to access the data, if the reference voltage value is consistent with the reference voltage value, the controller generates a first trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, a user uses a voltage generator as a key for accessing data, a preset voltage value is stored in the voltage generator, the voltage generator transmits the generated preset voltage value to the filter, the filter filters the preset voltage value generated by the voltage generator and transmits the filtered signal to the controller, a standard voltage value is stored in the controller, the controller compares the received voltage value with the standard voltage value, and if the reference voltage value is consistent with the reference voltage value, the controller generates a second trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, and the data in the first blockchain memory and the second blockchain memory are transmitted to the display through the controller only after the first trigger signal and the second trigger signal are received.
In the above embodiment, the financial data security management system based on the blockchain provided by the invention includes a data splitter, a first blockchain memory, a second blockchain memory, a third blockchain memory, a fourth blockchain memory, a fifth blockchain memory, a sixth blockchain memory, a seventh blockchain memory, an eighth blockchain memory, an image recognizer, an image processor, a controller, a filter, a voltage generator and a display, wherein the data splitter splits received data and transmits the split data to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, respectively, the image recognizer and the image processor are used for performing face recognition on a user accessing the data, the invention is characterized in that the image processor adopts the image information of the background area to compensate the image information of the human face, thereby obtaining clear image information, and the invention also discloses that a user uses a voltage generator as a key for accessing data, a preset voltage value is stored in the voltage generator, the voltage generator transmits the generated preset voltage value to a filter, and the filtered voltage information is compared with standard voltage information to identify whether the user uses correct access authority.
Specifically, the filter includes an amplifying circuit and a feedback circuit, wherein the amplifying circuit includes a first operational amplifier OP1, a fifth resistor R5, a third resistor R3, a fourth resistor R4 and a sixth resistor R6, and the feedback circuit includes a second operational amplifier OP2, a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2.
Wherein an output end of the voltage sensor is connected to a first end of the fifth resistor R5, the reference voltage V2 is connected to a first end of the third resistor R3, a second end of the fifth resistor is connected to an inverting input end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a non-inverting input end of the first operational amplifier OP1, a second end of the fifth resistor R5 is connected to a first end of the sixth resistor R6, a second end of the sixth resistor R6 is connected to an output end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a first end of the fourth resistor R4, a second end of the fourth resistor R4 is connected to a first end of the second capacitor C2, a second end of the second capacitor C2 is connected to a first end of the first capacitor C1, and a second end of the first capacitor C1 is connected to a first end of the first resistor R1, a first end of the second resistor R2 is connected to a second end of the second capacitor C2, a second end of the second resistor R2 is grounded, an inverting input terminal of the second operational amplifier OP2 is connected to the first end of the first resistor R1, a second end of the first resistor R1 is connected to an output terminal of the first operational amplifier OP1, a non-inverting input terminal of the second operational amplifier OP2 is grounded, an output terminal of the second operational amplifier OP2 is connected to a second end of the fourth resistor R4, and an output terminal of the first operational amplifier OP1 is connected to an input terminal of the controller.
In the above-mentioned embodiment, please refer to fig. 2, which is a circuit diagram of a second order dynamic high-pass filter according to an embodiment of the present invention, the second order dynamic high-pass filter includes a differential amplifier circuit 1 and a feedback processing circuit 2.
The differential amplifier circuit 1 comprises an operational amplifier OP1 and four resistors R3, R4, R5 and R6, and R4/R3= R6/R5, when an input voltage V1 and a reference voltage V2 of a voltage sensor are fed to inverting (-) and non-inverting (+) input terminals of the amplifier OP1 through the resistors R5 and R3, respectively, an output of the amplifier OP1 is fed back to the inverting input terminal of the amplifier OP1 through the resistor R6, thus obtaining an output. The feedback processing circuit 2 comprises an operational amplifier 0P2, two resistors R1 and R2, and two series capacitors C1 and C2; wherein the output of the differential amplifying circuit enters the inverting input terminal of the amplifier 0P2 through the resistor R1, and the non-inverting input terminal of the amplifier OP2 is grounded, the output of the amplifier OP2 enters the inverting input terminal of the amplifier OP2 through the two capacitors C1 and C2 connected in series, and simultaneously forms feedback through the resistor R4 entering the non-inverting input terminal of the amplifier 0P1, wherein the two capacitors C1 and C2 connected in series are grounded through the resistor R2.
After calculation, the transfer function of the filter is obtained as follows:
from the above formula, one can obtain:
where Q is the quality factor, w0 is the-3 dB frequency, K is the gain factor, V0 is the output voltage of the filter, V1 is the output voltage of the voltage sensor, V2 is the reference voltage value, and S is the laplace parameter.
The denominator of the conversion function f (S) is a quadratic function of the parameter S, so the second-order differential high-pass current filter of the embodiment of the present invention is a second-order circuit. The second order differential high pass filter of the present invention is convenient and simple to implement and design, and the design specification values of the quality factor Q and the-3 dB frequency w0 are firstly given, and the resistance and capacitance values can be determined by the following design steps. Step (1): first, appropriate capacitance values C1 and C2 are selected. Step (2):
(ii) a And (3):
(ii) a From the step (2) and the step (3), it can be known that the second-order differential high-pass filter of the present invention can obtain the resistors R1 and R2 only by simple replacement, and the design and implementation are very convenient without solving the simultaneous equations of binary which may have negative or complex solutions.
Specifically, the data to be stored is input into the data decomposer, and the data decomposer decomposes the received data and then transmits the decomposed data to the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory, the seventh block chain memory, and the eighth block chain memory;
the data to be stored is divided into customer name information and account information, the data decomposer divides the customer name information into six pieces of decomposition information and then respectively stores the decomposition information in the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory and the sixth block chain memory, the data decomposer stores the customer account information in the seventh block chain memory, the data decomposer sequentially stores the decomposition information in the eighth block chain memory, and when the information is read, the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory and the like are rearranged according to the sequence information stored in the eighth block chain memory, And data in the sixth blockchain memory and the seventh blockchain memory are used for acquiring customer information.
Specifically, the data splitter splits the client name information into six split information, and then stores the split information in the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, and the sixth block chain memory, respectively.
The data decomposer decomposes the customer name into phonetic alphabets and stores the phonetic alphabets in the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory and the sixth blockchain memory in sequence according to the data stored in the eighth blockchain memory.
In the above embodiment, for example, if the name information of the client is zhangsan, the data decomposer decomposes the name information of the client into "zhangsan" and then randomly divides the "zhangsan" into six segments, for example, "zh", "an", "g", "s", "a" and "n", and then stores the information into the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory and the sixth blockchain memory after scrambling the information according to the storage order of the eighth blockchain memory, for example, "654321", and then stores "zh" into the sixth blockchain memory, "an" into the fifth blockchain memory, "g" into the fourth blockchain memory, "s" into the third blockchain memory, Storing the 'a' into the second block chain memory and the 'n' into the first block chain memory.
Specifically, the image recognizer is configured to extract face information of a user, the image recognizer transmits the extracted image information to the image processor, and the image processor transmits a processed image to the controller, where the image processor performs image processing on the received image by the following steps:
the first step is as follows: carrying out image edge extraction on the image information f (x, y) acquired by the image recognizer;
the second step is that: dividing the image subjected to edge extraction into areas, wherein a face image area is marked as g (x, y), and a background image area is marked as k (x, y);
the third step: and compensating the face image area by using the background image area, wherein the compensated image is marked as s (x, y) and then has,
wherein s is1(x, y) and s2(x, y) is a compensation function.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The financial data security management system based on the block chain is characterized by comprising a data decomposer, a first block chain memory, a second block chain memory, a third block chain memory, a fourth block chain memory, a fifth block chain memory, a sixth block chain memory, a seventh block chain memory, an eighth block chain memory, an image recognizer, an image processor, a controller, a filter, a voltage generator and a display;
wherein, the output end of the data decomposer is respectively connected with the input end of the first blockchain memory, the input end of the second blockchain memory, the input end of the third blockchain memory, the input end of the fourth blockchain memory, the input end of the fifth blockchain memory, the input end of the sixth blockchain memory, the input end of the seventh blockchain memory and the input end of the eighth blockchain memory, the output end of the image recognizer is connected with the input end of the image processor, the output end of the image processor is connected with the input end of the controller, the output end of the voltage generator is connected with the input end of the filter, the output end of the filter is connected with the input end of the controller, the first blockchain memory, the second blockchain memory, the seventh blockchain memory and the eighth blockchain memory, The third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory are all bidirectionally connected with the controller, and the output end of the controller is connected with the input end of the display;
wherein, the data to be stored is input into the data decomposer, the data decomposer decomposes the received data and then transmits the decomposed data to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, the image recognizer is used for extracting the face information of the user, the image recognizer transmits the extracted image information to the image processor, the image processor transmits the processed image to the controller, the controller stores the image information of the person who is allowed to access the data, and the controller compares the received image information with the image information of the person who is allowed to access the data, if the reference voltage value is consistent with the reference voltage value, the controller generates a first trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, a user uses a voltage generator as a key for accessing data, a preset voltage value is stored in the voltage generator, the voltage generator transmits the generated preset voltage value to the filter, the filter filters the preset voltage value generated by the voltage generator and transmits the filtered signal to the controller, a standard voltage value is stored in the controller, the controller compares the received voltage value with the standard voltage value, and if the reference voltage value is consistent with the reference voltage value, the controller generates a second trigger signal to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory and the eighth blockchain memory, and the data in the first blockchain memory and the second blockchain memory are transmitted to the display through the controller only after the first trigger signal and the second trigger signal are received.
2. The block chain-based financial data security management system according to claim 1, wherein the filter comprises an amplifying circuit and a feedback circuit, wherein the amplifying circuit comprises a first operational amplifier OP1, a fifth resistor R5, a third resistor R3, a fourth resistor R4 and a sixth resistor R6, and the feedback circuit comprises a second operational amplifier OP2, a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2;
wherein an output end of the voltage sensor is connected to a first end of the fifth resistor R5, the reference voltage V2 is connected to a first end of the third resistor R3, a second end of the fifth resistor is connected to an inverting input end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a non-inverting input end of the first operational amplifier OP1, a second end of the fifth resistor R5 is connected to a first end of the sixth resistor R6, a second end of the sixth resistor R6 is connected to an output end of the first operational amplifier OP1, a second end of the third resistor R3 is connected to a first end of the fourth resistor R4, a second end of the fourth resistor R4 is connected to a first end of the second capacitor C2, a second end of the second capacitor C2 is connected to a first end of the first capacitor C1, and a second end of the first capacitor C1 is connected to a first end of the first resistor R1, a first end of the second resistor R2 is connected to a second end of the second capacitor C2, a second end of the second resistor R2 is grounded, an inverting input terminal of the second operational amplifier OP2 is connected to the first end of the first resistor R1, a second end of the first resistor R1 is connected to an output terminal of the first operational amplifier OP1, a non-inverting input terminal of the second operational amplifier OP2 is grounded, an output terminal of the second operational amplifier OP2 is connected to a second end of the fourth resistor R4, and an output terminal of the first operational amplifier OP1 is connected to an input terminal of the controller.
3. The system according to claim 1, wherein the data to be stored is input to the data decomposer, and the data decomposer decomposes the received data and transmits the decomposed data to the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, the sixth blockchain memory, the seventh blockchain memory, and the eighth blockchain memory;
the data to be stored is divided into customer name information and account information, the data decomposer divides the customer name information into six pieces of decomposition information and then respectively stores the decomposition information in the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory and the sixth block chain memory, the data decomposer stores the customer account information in the seventh block chain memory, the data decomposer sequentially stores the decomposition information in the eighth block chain memory, and when the information is read, the first block chain memory, the second block chain memory, the third block chain memory, the fourth block chain memory, the fifth block chain memory, the sixth block chain memory and the like are rearranged according to the sequence information stored in the eighth block chain memory, And data in the sixth blockchain memory and the seventh blockchain memory are used for acquiring customer information.
4. The system according to claim 3, wherein the data splitter splits customer name information into six split information, and stores the split information in the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory, and the sixth blockchain memory;
the data decomposer decomposes the customer name into phonetic alphabets and stores the phonetic alphabets in the first blockchain memory, the second blockchain memory, the third blockchain memory, the fourth blockchain memory, the fifth blockchain memory and the sixth blockchain memory in sequence according to the data stored in the eighth blockchain memory.
5. The system for managing financial data security based on block chain according to claim 1, wherein the image recognizer is configured to extract human face information of a user, the image recognizer transmits the extracted image information to the image processor, and the image processor transmits a processed image to the controller, wherein the image processor performs image processing on the received image as follows:
the first step is as follows: carrying out image edge extraction on the image information f (x, y) acquired by the image recognizer;
the second step is that: dividing the image subjected to edge extraction into areas, wherein a face image area is marked as g (x, y), and a background image area is marked as k (x, y);
the third step: and compensating the face image area by using the background image area, wherein the compensated image is marked as s (x, y) and then has,
wherein s is1(x, y) and s2(x, y) is a compensation function.
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| CN115048401A (en) * | 2022-08-15 | 2022-09-13 | 珠海翔翼航空技术有限公司 | Multi-block chain data processing method, system and equipment of analog machine management system |
| CN115134137A (en) * | 2022-06-23 | 2022-09-30 | 蚂蚁区块链科技(上海)有限公司 | Data transmission method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115134137A (en) * | 2022-06-23 | 2022-09-30 | 蚂蚁区块链科技(上海)有限公司 | Data transmission method and device |
| CN115134137B (en) * | 2022-06-23 | 2024-02-09 | 蚂蚁区块链科技(上海)有限公司 | Data transmission method, device, computer readable storage medium and equipment |
| CN115048401A (en) * | 2022-08-15 | 2022-09-13 | 珠海翔翼航空技术有限公司 | Multi-block chain data processing method, system and equipment of analog machine management system |
| CN115048401B (en) * | 2022-08-15 | 2022-11-01 | 珠海翔翼航空技术有限公司 | Multi-block chain data processing method, system and equipment of analog machine management system |
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