CN109165701B - Signature printing method, device, equipment and system - Google Patents

Abstract

The invention discloses a signature printing method, a signature printing device, signature printing equipment and signature printing system, wherein the signature printing method comprises the following steps: judging whether to scan the encrypted two-dimensional code in real time; when the need of scanning the encrypted two-dimensional code is judged, scanning and reading the currently received encrypted two-dimensional code, and decrypting and identifying the encrypted two-dimensional code to obtain the corresponding member class information in the encrypted two-dimensional code; after the member class information is acquired, the member class information is displayed; waiting for receiving a printing instruction of the member class information, and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; and when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and displaying and playing the pre-stored built-in picture. Therefore, the self-service printing of the signature is realized, the working efficiency of the signature printing is improved, and the problem that the traditional receipt printing device cannot realize self-service operation is solved.

Description

Signature printing method, device, equipment and system

Technical Field

The invention relates to the technical field of educational administration management system platforms, in particular to a signature printing method, a signature printing device, signature printing equipment and signature printing system.

Background

In recent years, educational administration management system platforms are basically used in educational training markets, and when members sign in class, most of the members swipe cards and combine background software to print out sign-in tickets on a thermosensitive paper ticket machine. At present, there are many different types of heat-sensitive paper ticket machines for signing in on class, such as: epson tm-t60 model, deli dl-581p model, etc. Most of the different classes of attendance thermal paper ticket machines need to be filled with thermal paper in advance and then connected with a computer host through a data line or Bluetooth. When the member prints the lesson receipt, the central staff simultaneously operates the computer at the computer end to print the lesson receipt.

The existing receipt printer needs to be associated with a computer host, operation software, a membership card swiping machine and other equipment, and although the goal of member attendance is achieved to a certain extent, the existing receipt printer can be completed only by assistance of a computer end worker, so that the existing receipt printing device cannot completely achieve self-service operation, and the operation efficiency is low.

Disclosure of Invention

Based on the above, it is necessary to provide a signature printing method, device, equipment and system for solving the problem that the conventional receipt printing device cannot completely realize self-service operation and has low working efficiency.

Based on the above object, the signature printing method provided by the invention comprises the following steps:

judging whether to scan the encrypted two-dimensional code in real time;

the encryption two-dimensional code is obtained by receiving a card number and a password of a membership card, acquiring corresponding member lesson information according to the card number and the password of the membership card, calling a symmetric algorithm, and encrypting the member lesson information by using a preset private key; and is also provided with

The member lesson information includes a membership card number, a membership name, and lesson time;

when judging that the encrypted two-dimensional code needs to be scanned, scanning and reading the currently received encrypted two-dimensional code; invoking the symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not; if the decrypted encrypted two-dimensional code is identified to be correct, acquiring the corresponding member class information in the encrypted two-dimensional code; if the decrypted encrypted two-dimensional code is identified to be incorrect, returning to the step of continuously executing real-time judgment on whether to scan the encrypted two-dimensional code or not;

after the member lesson information is obtained, the member lesson information is displayed;

Waiting for receiving a printing instruction of the member class information, and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

and when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and displaying and playing the prestored built-in picture.

In one embodiment, after the member class information is obtained and displayed, the method further includes the following steps:

judging whether member signature information is received or not;

if yes, waiting to receive the printing instruction, and printing the signature after receiving the printing instruction;

and if not, returning to the step of judging whether to scan the encrypted two-dimensional code in real time.

In one embodiment, when it is determined that the scanning of the encrypted two-dimensional code is not needed, the method enters a dormant state and displays and plays a pre-stored built-in picture, and includes the following steps:

when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and judging whether the current state is a timeout dormant state in real time;

If yes, displaying and playing the preset stored built-in picture;

if not, returning to the step of executing the real-time judgment on whether to scan the encrypted two-dimensional code.

In one embodiment, when the step of displaying and playing the pre-stored built-in picture is performed, the method further comprises the following steps:

judging whether the current state is a sleep exit state or not;

if yes, the sleep state is exited, and the step of judging whether to scan the encrypted two-dimensional code in real time is executed in a return mode;

if not, continuing to execute the step of displaying and playing the prestored built-in picture.

Correspondingly, based on the same inventive concept, the invention also provides a signature printing device, which comprises a control module, a data acquisition module, a display module and a printing module;

the control module comprises a scanning judging sub-module and a dormant state control sub-module;

the scanning judging sub-module is used for judging whether the encrypted two-dimensional code is scanned or not in real time;

the encryption two-dimensional code is obtained by receiving a card number and a password of a membership card, acquiring corresponding member lesson information according to the card number and the password of the membership card, calling an encryption algorithm, and encrypting the member lesson information by using a preset private key; and is also provided with

The member lesson information includes a membership card number, a membership name, and lesson time;

the data acquisition module comprises a scanning sub-module and a decryption sub-module;

the scanning sub-module is used for scanning and reading the currently received encrypted two-dimensional code;

the decryption submodule is used for calling the symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not;

the decryption sub-module is further used for acquiring the member class information corresponding to the encrypted two-dimensional code when the decrypted encrypted two-dimensional code is identified to be correct;

the decryption sub-module is further configured to return to the scan judgment sub-module when the decrypted encrypted two-dimensional code is identified to be incorrect, where the scan judgment sub-module continues to perform the step of judging whether to perform scanning of the encrypted two-dimensional code in real time;

the display module is used for displaying the member class information after the data acquisition module acquires the member class information;

the printing module is used for waiting to receive a printing instruction of the member class information and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

And the dormant state control sub-module is used for entering a dormant state and displaying and playing a prestored built-in picture when judging that the scanning of the encrypted two-dimensional code is not needed.

In one embodiment, the sleep state control submodule includes a timeout sleep determination unit;

the timeout dormancy judging unit is used for judging whether the current state is a timeout dormancy state or not in real time;

the timeout dormancy judging unit is further used for controlling the display module to display and play the pre-selected stored built-in picture when judging that the current state is the timeout dormancy state;

and the overtime dormancy judging unit is further used for returning to the scanning judging submodule when judging that the current state is not the overtime dormancy state, and executing the step of judging whether to scan the encrypted two-dimensional code in real time by the scanning judging submodule.

Correspondingly, based on the same inventive concept, the invention also provides signature printing equipment, which comprises:

a base of rectangular structure;

an upward extending machine body bracket is fixed on one side of the base; the upper part of the machine body support is provided with a display device which is obliquely arranged in the vertical direction; a printing device is arranged in the middle of the machine body support;

The top end of the base is provided with a containing groove with a cuboid structure; a system main control board is arranged in the accommodating groove; the system main control board is connected with the main control board power adapter; the rear wall of the accommodating groove is provided with a network cable interface, a power interface and a power switch; a plurality of heat dissipation holes are formed in the two opposite sides of the accommodating groove;

the printing device comprises a containing cavity; the accommodating cavity comprises an upper cavity and a lower cavity;

a two-dimensional code scanner is arranged in the lower cavity; the two-dimensional code scanner can identify the two-dimensional code; an operating platform with a square structure is fixed on the front side of the middle part of the machine body bracket; the middle part of the top end of the operating platform is provided with a first through hole with a square structure; the two-dimensional code scanner is arranged at the lower end of the first through hole; a transparent glass plate with a square structure is arranged at the top end of the first through hole; two horns are also arranged in the lower cavity; the two horns are connected with the system main control board;

a bar code printer is arranged in the upper cavity; the bar code printer is connected with the printer power adapter, the printer control board and the printing paper; the front side of the middle part of the machine body bracket is provided with a groove with an opening structure at the front end; a second through hole penetrating the machine body support and provided with a cuboid structure; the front end of the second through hole is propped against the middle part of the rear end of the groove; the bar code printer is arranged at the rear end of the second through hole; the printing paper can pass through the second through hole;

The display device includes a receiving frame; a capacitive touch screen is fixed at the front end of the accommodating frame; the rear side of the accommodating frame is provided with a liquid crystal display screen, a touch screen control card, a display screen power adapter and a display control panel; the liquid crystal display screen is connected with the display screen power adapter and the display control panel; the display control panel is connected with the system main control panel; the capacitive touch screen is connected with the touch screen control card; the touch screen control card is connected with the system main control board;

the system main control board is used for controlling the system main control board to control the system main control board; judging whether to scan the encrypted two-dimensional code in real time;

the encryption two-dimensional code is obtained by receiving a card number and a password of a membership card, acquiring corresponding member lesson information according to the card number and the password of the membership card, calling an encryption algorithm, and encrypting the member lesson information by using a preset private key; and is also provided with

The member lesson information includes a membership card number, a membership name, and lesson time;

the two-dimension code scanner is used for scanning and reading the currently received encrypted two-dimension code when the system main control board judges that the encrypted two-dimension code needs to be scanned; invoking the symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not; if the decrypted encrypted two-dimensional code is identified to be correct, acquiring the corresponding member class information in the encrypted two-dimensional code; if the decrypted encrypted two-dimensional code is identified to be incorrect, returning to the system main control board, and continuously executing the step of judging whether to scan the encrypted two-dimensional code in real time by the system main control board;

The liquid crystal display screen is used for displaying the member class information after the two-dimensional code scanner acquires the member class information;

the bar code printer is used for waiting to receive a printing instruction of the member class information and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

and the system main control panel is also used for entering a dormant state and controlling the liquid crystal display screen to display and play the prestored built-in picture when judging that the scanning of the encrypted two-dimensional code is not needed.

In one embodiment, the apparatus further comprises a first baffle, a second baffle, and a third baffle;

the first baffle and the second baffle are arranged on two opposite sides of the machine body bracket; the third baffle is arranged at the top end of the machine body bracket.

In one embodiment, a cover plate is arranged on the front side of the machine body bracket below the operation table; a reinforcing plate is fixed on the front side of the cover plate;

the front end of the reinforcing plate is obliquely arranged in the vertical direction; the top end of the reinforcing plate is abutted against the bottom end of the operation table;

The reinforcing plate and the cover plate are integrally formed.

Correspondingly, based on the same inventive concept, the invention also provides a signature printing system, which comprises an encryption two-dimensional code generating module and the signature printing device;

the encryption two-dimension code generation module is loaded on the intelligent mobile terminal equipment and is used for receiving the card number and the password of the membership card, acquiring corresponding member lesson information according to the card number and the password of the membership card, then calling an encryption algorithm, and encrypting the member lesson information by using a preset private key to generate a corresponding encryption two-dimension code; the member lesson information includes a membership card number, a membership name, and lesson time;

the signature printing device comprises a control module, a data acquisition module, a display module and a printing module; the control module comprises a scanning judging sub-module and a dormant state control sub-module;

the scanning judging sub-module is used for judging whether the encrypted two-dimensional code is scanned or not in real time;

the data acquisition module is used for scanning and reading the currently received encrypted two-dimensional code when judging that the encrypted two-dimensional code needs to be scanned; invoking the symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not; if the decrypted encrypted two-dimensional code is identified to be correct, acquiring the corresponding member class information in the encrypted two-dimensional code; if the decrypted encrypted two-dimensional code is not correct, returning to the scanning judging submodule, and continuously executing the step of judging whether to scan the encrypted two-dimensional code in real time by the scanning judging submodule;

The display module is used for displaying the member class information after the data acquisition module acquires the member class information;

the printing module is used for waiting to receive a printing instruction of the member class information and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

and the dormant state control sub-module is used for entering a dormant state and displaying and playing a prestored built-in picture when judging that the scanning of the encrypted two-dimensional code is not needed.

According to the signature printing method, the pre-generated encrypted two-dimensional code containing the member lesson information is scanned, the pre-generated encrypted two-dimensional code is decrypted and identified to obtain the corresponding member lesson information, and then the corresponding member lesson information is displayed. Meanwhile, after the member class information is displayed, printing of the sign-in signature printed with the member class information is performed correspondingly according to the received printing instruction, and a member sign-in mode based on the encrypted two-dimension code is achieved. Therefore, when a member signs in on lessons, only the encrypted two-dimension code generated in advance is required to be provided, the encrypted two-dimension code is scanned and identified correspondingly, the sign-in signature can be printed, the staff is not required to assist the member to operate independently, the self-service printing purpose of the sign-in signature is achieved, the operation is simple and convenient, the working efficiency of the sign-in signature printing is improved effectively, and the problems that the conventional receipt printing device cannot achieve self-service operation completely and the working efficiency is low are solved.

Drawings

FIG. 1 is a flow chart of a signature printing method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another embodiment of a signature printing method of the present invention;

FIG. 3 is a schematic diagram illustrating a signature printing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a logic structure of a control module in an embodiment of a signature printing apparatus according to the present invention;

FIG. 5 is a schematic diagram of the structure of an embodiment of the signature printing apparatus of the present invention;

fig. 6 is a schematic diagram of an internal structure of the signature printing apparatus shown in fig. 5;

fig. 7 is a schematic structural diagram of a signature printing system according to an embodiment of the present invention.

Detailed Description

In order to make the technical scheme of the invention clearer, the invention is further described in detail by combining specific embodiments. It should be noted, among other things, that the following description includes various specific details that aid understanding, but these details are to be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to literature meanings, but are used only by the inventors to enable clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It should be understood that the singular forms also include the plural reference unless the context clearly indicates otherwise. Thus, for example, reference to a "component surface" includes reference to one or more such surfaces.

Referring to fig. 1, as a specific embodiment of the signature printing method of the present invention, it includes step S100, determining whether to scan the encrypted two-dimensional code in real time. Here, the encrypted two-dimensional code is generated in advance by a lesson member through an application system (APP) installed in a mobile terminal such as a mobile phone.

Specifically, in the signature printing method of the present invention, the generation process of the encrypted two-dimensional code specifically includes: firstly, a lesson person inputs a membership card number and a password of the lesson person and logs in a corresponding application system installed on a mobile terminal such as a mobile phone, a tablet computer and the like. Then, the application system receives the card number and the password of the membership card, and acquires corresponding membership class information according to the received membership card number and password. And then, the application system calls a preset encryption algorithm, encrypts the data blocks such as the member class information and the like by using a preset private key, and accordingly generates and obtains a corresponding encrypted two-dimensional code. Here, the member lesson information includes card number information of a member card, member name information, and lesson time information. In addition, the member lesson information may further include information such as sex information, age information, course name, and contact information of guardians of the members.

Further, referring to fig. 1, when it is determined that the encrypted two-dimensional code needs to be scanned, the currently received encrypted two-dimensional code is scanned and read, and the encrypted two-dimensional code is decrypted and identified, so that the member class information corresponding to the encrypted two-dimensional code is obtained.

In the decryption and identification process for the encrypted two-dimensional code, the method specifically includes step S210, scanning and reading the currently received encrypted two-dimensional code. After the current encrypted two-dimensional code is scanned and read, step S220 is executed, the symmetric algorithm same as that used for generating the encrypted two-dimensional code by encryption is called, the encrypted two-dimensional code is decrypted by a public key corresponding to a private key used in the encryption process, and whether the decrypted encrypted two-dimensional code is correct or not is identified. Here, it will be understood by those skilled in the art that identifying whether the decrypted encrypted two-dimensional code is correct refers specifically to determining whether the decrypted data block is empty. And if the decrypted data block is judged to be empty, indicating that the decrypted encrypted two-dimensional code is incorrect. And if the decrypted data block is judged and identified not to be empty, the decrypted encrypted two-dimensional code is indicated to be correct. When the decrypted encrypted two-dimensional code is identified to be correct, step S230 is executed to obtain the member class information corresponding to the encrypted two-dimensional code. Namely, the corresponding member lesson information is read from the decrypted data block, such as: card number information of the membership card, membership name information, class time information, class name and the like. If the decrypted encrypted two-dimensional code is not correct, returning to the step S100, and continuously executing the step of judging whether to scan the encrypted two-dimensional code in real time, thereby continuously executing the scanning and reading operation of the next encrypted two-dimensional code.

In order to more clearly describe the process of generating the encrypted two-dimensional code and the process of decrypting the encrypted two-dimensional code in the signature printing method of the present invention, the following will be described in further detail by listing two specific embodiments. It should be noted that the following example is merely one implementation, and is not limited to the following example.

Specifically, the method for automatically generating the encrypted two-dimensional code calls the encryption algorithm as follows:

var str= "name: ming ";

if(string.IsNullOrWhiteSpace(str)){return；}

var MEnstr = new encodomon. Encryption of TripDES ()

After the encrypted two-dimensional code is identified, the decryption algorithm is called as follows:

if(string.IsNullOrWhiteSpace(MEnstr)){return；}

var Mdstr = new encocodecomon. Tripdes (). MDecrypt (MEnstr); decryptionMDecrypt ()

MessageBox.Show(Mdstr)；

The encryption algorithm is called to encrypt and decrypt the two-dimensional code, the symmetric algorithm uses the same key and initialization vector when encrypting and decrypting the data, the data block is encrypted by the private key, and only the public key which is issued correspondingly can decrypt the data block. Thereby ensuring the correct identity of the published message.

Referring to fig. 1, after the corresponding member lecture information is acquired through the above steps, step S300 is performed to display the member lecture information. Here, in the process of displaying the member class information, the display modes may be various, for example: each piece of information is displayed in a self-line or each piece of information is displayed in a self-line.

After the member class information is displayed in step S300, step S400 is executed, and the printing instruction of the member class information is waited for and the signature of the member class information is printed according to the printing instruction after the printing instruction is received. Here, the printed signature is printed with member class information. Meanwhile, in order to enable the lesson teacher to directly and completely know the names of lesson members and lesson information related to the lesson, it is preferable that in the signature printing method of the present invention, the printed signature is preferably a self-adhesive signature. The self-adhesive signature is used as the signature, after the signature is printed through the steps, a member can directly paste the signature in front of the member and enter a classroom, and a teacher can directly obtain relevant information of the member according to the lesson information displayed on the signature. Compared with the traditional mode of adopting the thermosensitive paper material as the signature, the method not only achieves the purpose of directly and clearly displaying the lesson information of the member, but also prolongs the display time of the lesson information of the member and ensures the long-term display effect of the lesson information of the member.

Further, referring to fig. 2, as another embodiment of the signature printing method of the present invention, after the member class information is acquired and displayed, step S400 is performed, and preferably, step S040 is further included to determine whether the member signature information is received before the signature printed with the member class information is printed. That is, after the member class information is acquired and displayed in step S300, the member can manually check whether the information is correct according to the displayed member class information. If the signature is correct, the member signs on the displayed member lesson information interface, and sends a corresponding printing instruction, and then step S400 is executed, the member waits for receiving the printing instruction, and prints the corresponding signature after receiving the printing instruction. If not, the member does not sign on the member lesson information interface, and returns to step S100, and the step of judging whether to scan the encrypted two-dimensional code in real time is continuously executed, so that the scanning and reading of the next encrypted two-dimensional code can be conveniently and timely performed.

The method comprises the steps of setting and judging whether the signature information of the member is received or not after the member class information is displayed and before the signature of the member class information is printed, so that the accuracy of the finally printed signature is further ensured, and the printing reliability of the signature is further improved.

Further, in a specific embodiment of the signature printing method of the present invention, referring to fig. 1, in step S100, when it is determined that scanning of the encrypted two-dimensional code is not required, step S500 is executed, and a sleep state is entered and a pre-stored built-in picture is displayed.

It should be noted that, as another specific embodiment of the signature printing method of the present invention, in step S500, when it is determined that scanning of the encrypted two-dimensional code is not required, a sleep state is entered and a pre-stored built-in picture is displayed, specifically including step S510, entering the sleep state and determining in real time whether the current state is a timeout sleep state. Here, it should be noted that the timeout sleep state refers to that the current sleep time exceeds the preset maximum sleep time. Thus, the current state can be judged by timing by the timer. The operation is simple and easy to realize. Also, preferably, the maximum sleep time may be set to 5min-20min.

When it is judged that the current state is the timeout sleep state, it is indicated that no member performs the printing operation of the signature for the signature within the maximum sleep period, so step S520 may be executed at this time to display and play the pre-selected stored built-in picture or video. When it is determined that the current state is not the timeout sleep state, it indicates that there is a printing operation of signing a signature by a member intermittently in the time counting time, so that in order to ensure smooth printing of the signature at this time, step S100 is returned to execute a step of determining whether to scan an encrypted two-dimensional code in real time.

Still further, as still another specific embodiment of the signature printing method of the present invention, referring to fig. 2, when step S500 is performed to display a step of playing a pre-stored built-in picture, step S600 is further included to determine whether the current state is the exiting sleep state. That is, it is determined whether there is a wake-up operation currently. Such as: and touching a display screen for displaying the member class information. If yes, it indicates that there is a possibility that a member needs to print a signature, so step S700 is executed at this time, the sleep state is exited, step S100 is returned, and a step of determining whether to scan the encrypted two-dimensional code in real time is executed. If not, it indicates that no one needs to print the signature, so step S500 is continued to display the pre-stored built-in picture.

Therefore, the method scans the pre-generated encrypted two-dimensional code containing the member lesson information, decrypts and identifies the pre-generated encrypted two-dimensional code to acquire the corresponding member lesson information, and then displays the corresponding member lesson information. Meanwhile, after the member class information is displayed, printing of the sign-in signature printed with the member class information is performed correspondingly according to the received printing instruction, and a member sign-in mode based on the encrypted two-dimension code is achieved. When members sign in class, only the encrypted two-dimension code generated in advance is required to be provided, the encrypted two-dimension code is scanned and identified correspondingly, the sign-in signature can be printed, staff is not required to assist the staff to operate the sign-in signature by the members independently, the self-service printing purpose of the sign-in signature is achieved, the operation is simple and convenient, the working efficiency of the sign-in signature printing is effectively improved, and the problems that a traditional receipt printing device cannot achieve self-service operation completely and the working efficiency is low are finally solved.

Correspondingly, the invention also provides a signature printing device. Since the working principle of the signature printing device provided by the invention is the same as or similar to that of the signature printing method provided by the invention, repeated parts are not repeated.

Referring to fig. 3, as a specific embodiment of the signature printing apparatus 100 of the present invention, it includes a control module 110, a data acquisition module 120, a display module 130, and a printing module 140. It should be noted that, the control module 110 may be implemented by a main control board. Here, it should be noted that, in a specific embodiment of the signature printing apparatus 100 of the present invention, the control module 110 includes a power module 111, a main control board module 112, and a software module 113 corresponding to the main control board. Referring to fig. 4, a logic relationship of a control template in an embodiment of the signature printing apparatus 100 of the present invention is shown. The power module 111 is configured to provide driving power to the main control board module 112 and the software control module 113. The main control board module 112 is configured to receive external signals, such as: print instructions, etc. Meanwhile, the main control board module 112 performs data interaction with the software control module 113 and the printing module 140, and the software control module 113 performs data transmission with the display module 130. In addition, the power adapter of the control module 110 may be implemented with an input of 100-240V-1.0A 50-60HZ and an output of 12VDC-5 AMAX.

Further, the control module 110 includes a scan determination sub-module and a sleep state control sub-module (not shown). The scanning judging sub-module is used for judging whether the encrypted two-dimensional code is scanned or not in real time. Here, it should be noted that the encrypted two-dimensional code is obtained by receiving the card number and the password of the membership card, acquiring the corresponding member lesson information according to the card number and the password of the membership card, then calling an encryption algorithm, and encrypting the member lesson information by using a preset private key. Meanwhile, it is also to be noted that the member lesson information includes a membership card number, a membership name, and lesson time.

The data acquisition module 120 is configured to scan and read the currently received encrypted two-dimensional code when it is determined that the encrypted two-dimensional code needs to be scanned, and decrypt and identify the encrypted two-dimensional code to obtain the member class information corresponding to the encrypted two-dimensional code. It should be noted that, in a specific embodiment of the signature printing apparatus 100 of the present invention, the data collection module 120 may be implemented by a two-dimensional code scanner. Namely, by adopting the two-dimension code scanner as the data acquisition unit, the encrypted two-dimension code from the mobile phone display is identified, and the signal is fed back to the display module 130 (such as a display screen) to display the specific content, so that the mobile phone has a simple structure and is easy to realize.

The display module 130 is configured to display the member class information after the data acquisition module 120 acquires the member class information. Likewise, the display module 130 may be directly implemented using a display screen. Here, it is to be noted that, in the signature printing apparatus 100 of the present invention, the display screen power adapter: inputting 100-240V-1.0A 50-60HZ; outputs 12VDC-4AMAX with touch screen functionality.

And the printing module 140 is used for waiting to receive the printing instruction of the member class information and printing the signature of the member class information according to the printing instruction after receiving the printing instruction. The printed signature is printed with member class information. Meanwhile, it should be further noted that the printing module 140 may be directly implemented using a printer. Namely, a printer is arranged below the two-dimensional code identifier, and the printer receives the signal of the main control panel to feed back and print the self-adhesive name paste. Wherein, printer power adapter: inputting 100-240V-1.5A 50-60HZ; output 24VDC-2.5A.

Further, in the signature printing apparatus 100 of the present invention, the sleep state control sub-module is configured to enter the sleep state and display and play the pre-stored built-in picture when it is determined that the scanning of the encrypted two-dimensional code is not required.

Still further, as another embodiment of the signature printing apparatus 100 of the present invention, the data acquisition module 120 includes a scanning sub-module and a decryption sub-module (not shown in the figure). The scanning sub-module is used for scanning and reading the currently received encrypted two-dimensional code. And the decryption sub-module is used for calling a symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not. And the decryption sub-module is also used for acquiring the corresponding member class information in the encrypted two-dimensional code when the decrypted encrypted two-dimensional code is identified to be correct. And the decryption sub-module is also used for returning to the scanning judgment sub-module when the decrypted encrypted two-dimensional code is not correct, and the scanning judgment sub-module continues to execute the step of judging whether to scan the encrypted two-dimensional code in real time.

Preferably, the sleep state control submodule includes a timeout sleep determination unit. And the timeout dormancy judging unit is used for judging whether the current state is the timeout dormancy state or not in real time. The timeout sleep determination unit is further configured to control the display module 130 to display a pre-selected stored built-in picture when the current state is determined to be the timeout sleep state. And the overtime dormancy judging unit is also used for returning to the scanning judging submodule when judging that the current state is not the overtime dormancy state, and executing the step of judging whether to scan the encrypted two-dimensional code in real time by the scanning judging submodule.

In addition, as still another embodiment of the signature printing apparatus 100 of the present invention, the control module 110 further includes an exit sleep determination sub-module and an exit sleep control sub-module (not shown in the figure). And the sleep exit judging sub-module is used for judging whether the current state is a sleep exit state or not. And the sleep exit control sub-module is used for controlling the signature printing device 100 to exit the sleep state and returning to the scanning judgment sub-module when the sleep exit judgment sub-module judges that the current state is the sleep exit state, and the scanning judgment sub-module executes the step of judging whether to scan the encrypted two-dimensional code in real time. The sleep exit control sub-module is further configured to control the display module 130 to continue to perform the step of displaying and playing the pre-stored built-in picture when the sleep exit determination sub-module determines that the current state is not the sleep exit state.

The signature printing device 100 provided by the invention comprises a control module 110, a data acquisition module 120, a display module 130 and a printing module 140, wherein a scanning judging submodule in the control module 110 judges whether to scan an encrypted two-dimensional code in real time, when judging that the encrypted two-dimensional code needs to be scanned, the data acquisition module 120 scans and reads the currently received encrypted two-dimensional code, decrypts the encrypted two-dimensional code, identifies member class information in the encrypted two-dimensional code, further displays the member class information by the display module 130, and after receiving a printing instruction, the printing module 140 prints the signature printed with the member class information. Therefore, the purpose of signature printing based on the two-dimension code in the whole process is achieved. When the signature printing device 100 is used for printing the signature, the signature can be realized only by providing the corresponding encrypted two-dimensional code, the operation is simple, and the signature can be finished only by one member operation, so that the self-service printing purpose of the signature is realized, and finally the working efficiency of the signature printing is effectively improved.

Correspondingly, based on the working principle of any signature printing device 100, the invention further provides signature printing equipment. Referring to fig. 5 and 6, as a signature printing apparatus of the present invention, it is mainly used for educational administration management system platforms such as: membership check-in of educational training center. Specifically, it includes a base 310 of rectangular parallelepiped structure. An upward extending body bracket is fixed to one side of the base 310. The upper part of the machine body bracket is provided with a display device which is obliquely arranged in the vertical direction. The middle part of the machine body bracket is provided with a printing device.

The top end of the base 310 is provided with a containing groove 320 with a cuboid structure, a system main control board is arranged in the containing groove 320, and the system main control board is connected with a main control board power adapter. The back wall of the accommodating groove 320 is provided with a network cable interface 321, a power supply interface 322 and a power supply switch 323, and two opposite sides of the accommodating groove 320 are provided with a plurality of heat dissipation holes.

The printing device comprises a containing cavity, wherein the containing cavity comprises an upper cavity and a lower cavity.

The lower cavity is internally provided with a two-dimensional code scanner 410, and the two-dimensional code scanner 410 can identify the two-dimensional code. The front side of the middle part of the machine body support is fixed with an operation table 420 with a square structure, and the middle part of the top end of the operation table 420 is provided with a first through hole 421 with a square structure. The two-dimensional code scanner 410 is disposed at the lower end of the first through hole 421. A transparent glass plate 422 of square structure is provided at the top end of the first through hole 421. And two horns are also arranged in the lower cavity and are connected with a main control panel of the system.

The upper layer cavity is internally provided with a bar code printer 430, and the bar code printer 430 is connected with a printer power adapter 440, a printer control board and printing paper. The front side of the middle part of the machine body bracket is provided with a groove 451 with an opening structure at the front end. A second through hole 452 of a cuboid structure is arranged through the machine body bracket, the front end of the second through hole 452 is propped against the middle part of the rear end of the groove 451, and the bar code printer 430 is arranged at the rear end of the second through hole. The printing paper may pass through the second through hole 452.

The display device comprises a containing frame 460, wherein a capacitive touch screen 461 is fixed at the front end of the containing frame 460, and a liquid crystal display 462, a touch screen control card, a display screen power adapter 463 and a display control board are arranged at the rear side of the containing frame. The liquid crystal display 462 is connected to the display power adapter 463 and the display control board, which is connected to the system main control board. The capacitive touch screen 461 is connected to a touch screen control card, which is connected to a system main control board.

The system main control board is used for judging whether to scan the encrypted two-dimensional code in real time. Here, the encrypted two-dimensional code is obtained by receiving the card number and the password of the membership card, acquiring corresponding member lesson information according to the card number and the password of the membership card, then calling an encryption algorithm, and encrypting the member lesson information by using a preset private key. And, the member lesson information includes a membership card number, a membership name, and lesson time.

The two-dimension code scanner 410 is configured to scan and read the currently received encrypted two-dimension code, call a symmetric algorithm, decrypt the encrypted two-dimension code by using a public key corresponding to the private key, and identify whether the decrypted encrypted two-dimension code is correct when the system main control board determines that the encrypted two-dimension code needs to be scanned; if the decrypted encrypted two-dimensional code is identified to be correct, the corresponding member class information in the encrypted two-dimensional code is acquired; if the decrypted encrypted two-dimensional code is not correct, returning to the system main control board, and continuously executing the step of judging whether to scan the encrypted two-dimensional code in real time by the system main control board.

The liquid crystal display 462 is used for displaying the member lesson information after the two-dimensional code scanner 410 acquires the member lesson information.

The bar code printer 430 is configured to wait for receiving a print instruction of the member class information, and to print a signature of the member class information according to the print instruction after receiving the print instruction. The printed signature is printed with member class information.

The system main control board is further configured to enter a sleep state and control the liquid crystal display when it is determined that the encrypted two-dimensional code is not required to be scanned, and display and play the pre-stored built-in picture through the liquid crystal display 462.

In this embodiment, a base 310 of rectangular parallelepiped configuration. The body support that upwards extends is fixed with on the top front side of base 310, and display device slant is installed in the upper portion of body support, and the operator reads the information that display device shows, and the comfort level is higher. The printing device is positioned in the middle of the machine body bracket. Wherein, the top of the base 310 is provided with a containing groove 320 with a cuboid structure, and the base 310 effectively avoids the containing groove 320 from directly contacting the ground surface, thereby being dampproof. The receiving groove 320 is provided therein with a system main control board and a main control board power adapter, and the system main control board and the main control board power adapter are electrically connected. The main control panel power adapter is convenient for providing proper voltage and current for the main control panel of the system. The receiving groove 320 effectively isolates the system main control board and the main control board power adapter from the external environment, improving operational safety. The printing device comprises a containing cavity, wherein the containing cavity comprises an upper cavity and a lower cavity. The lower cavity is internally provided with a two-dimensional code scanner 410, and the two-dimensional code scanner 410 can identify the two-dimensional code. The bar code printer 430 is arranged in the upper cavity, so that the required information can be printed conveniently. The barcode printer 430 is connected to the printer power adapter 440, the device control board, and the barcode printer 430 is loaded with printing paper. The printing paper is non-thermal printing paper and can be reserved for a long time. The printer power adapter 440 facilitates providing the appropriate voltage and current to the barcode printer 220. The display device includes a receiving frame 460, and a capacitive touch screen 461 is fixed at the front end of the receiving frame 460, and the capacitive touch screen 461 greatly improves operability.

Correspondingly, the front side of the middle part of the machine body support is fixed with an operation table 420 with a square structure, and the middle part of the top end of the operation table 420 is provided with a first through hole 421 with a square structure. The two-dimensional code scanner 410 is disposed at the lower end of the first through hole 421. In this way, the laser beam emitted from the two-dimensional code scanner 410 reaches a position easily touched by the operator through the first through hole 421. And, a transparent glass plate 422 is mounted on the top end of the first through hole 421, and the transparent glass plate 422 prevents dust from falling into the first through hole 421. The front side of the middle part of the machine body bracket is also provided with a groove 451 with an opening structure at the front end. A second through hole 452 of a cuboid structure is arranged through the machine body bracket, the front end of the second through hole 452 is propped against the middle part of the rear end of the groove 451, and the bar code printer 430 is arranged at the rear end of the second through hole. The printing paper may pass through the second through hole 452. In this way, the printing paper can enter the position easily contacted by the operator from the working area through the first through hole 222, so that the convenience of use is greatly improved. The rear side of the receiving frame is provided with a liquid crystal display 462, a touch screen control card, a display screen power adapter 463 and a display control board. The liquid crystal display 462 is connected to the display power adapter 463 and the display control board, which is connected to the system main control board. The capacitive touch screen 461 is connected to a touch screen control card, which is connected to a system main control board.

In order to meet the requirement, the rear wall of the accommodating groove 320 is provided with a network cable interface 321, a power supply interface 322 and a power supply switch 323 in sequence. The network interface 121 facilitates device connection to a network cable. The power interface 322 facilitates device power-on. The power switch 323 facilitates starting and stopping the operation of the device. 15 heat dissipation holes are formed in the opposite side walls of the accommodating groove 320. When the system main control board works, a large amount of heat is generated, and the heat dissipation function of the accommodating groove 320 is greatly enhanced by the heat dissipation holes. And two horns are also arranged in the lower cavity and are connected with a main control panel of the system.

Specifically, the operator provides the two-dimensional code, the two-dimensional code scanner 410 recognizes the two-dimensional code to extract information, and then the information is converted into a signal to be transmitted to the system main control board, and the system main control board transmits the signal to the display control board, so that the information is displayed on the liquid crystal display 462 for the operator to browse and perform selective operation. The operator performs selective operation by touching the capacitive touch screen 461 with his hand, and the operation command is transmitted to the touch screen control card, and the touch screen control card transmits the operation command to the system main control board. The system main control board will communicate the operation instruction to the bar code printer 430, and the bar code printer 430 may print the information on the printing paper. Then, the printing paper enters a position easily contacted by the operator through the second through hole 452.

In one embodiment of the present invention, the apparatus further comprises a first baffle 510, a second baffle 520, and a third baffle 530. One side of the body support is fixedly connected with the front side of the first baffle 510, the other side of the body support is fixedly connected with the front side of the second baffle 520, and the top end of the body support is fixedly connected with the front side of the third baffle, so that a four-side closed structure is formed. And handles are provided at the middle of the first barrier 510 and the middle of the second barrier 520. The handle is used, so that the device position is greatly convenient to move. The apparatus further includes a partition 540 disposed between the upper chamber and the lower chamber, and opposite sides of the partition 540 are respectively fixed to the middle of the first barrier 510 and the middle of the second barrier 520. Wherein, the first baffle 510, the second baffle 520 and the third baffle 530 are all integrally formed with the machine body support, and the machine body support, the first baffle 510, the second baffle 520 and the third baffle 530 are made of stainless steel, so that the machine has stronger mechanical strength.

In one embodiment of the present invention, the size of the transparent glass plate 422 is adapted to the size of the aperture of the first through hole 421, so as to facilitate the installation and use of the transparent glass plate 422. A cover plate 470 is provided on the front side of the body frame below the console 420, and a reinforcing plate 471 is fixed to the front side of the cover plate 470. The front end of the reinforcing plate 471 is disposed obliquely in the vertical direction, and the top end of the reinforcing plate 471 abuts against the bottom end of the console 420. Thus, the reinforcing plate 471 can share the dead weight of the console 420, and prevent the console from being broken due to local overstressed. And reinforcing plate 471 and apron 470 integrated into one piece have improved the convenience of maintenance. One side of the cover 470, which is close to the first baffle 310, is movably connected with one side of the body support, which is close to the first baffle 510, so as to facilitate the opening and closing of the cover 470. The two horns are respectively fixed on two opposite sides of the accommodating cavity. Thus, the operator can clearly hear the content of the device report.

It should be further noted that, in a specific embodiment of the signature printing apparatus of the present invention, the input power of the main control board power adapter is 100-240V-1.0 a,50-60HZ; the output power of the main control panel power adapter is 12V-5A; the input power of the printer power adapter 440 is 100-240V-1.0A, 50-60HZ; the output power of the printer power adapter 440 is 24V-2.5A; the input power of the display screen power adapter 463 is 100-240V-1.0A, 50-60HZ; the output power of display power adapter 463 is 12V-4A.

Further, based on any of the above-described signature printing apparatuses 100, the present invention also provides a signature printing system 10. Since the working principle of the signature printing system 10 provided by the present invention is the same as or similar to that of the signature printing device 100 provided by the present invention, the repetition is not repeated.

Referring to fig. 7, a signature printing system 10 according to an embodiment of the present invention is provided. Which includes an encrypted two-dimensional code generation module 200 and any of the signature printing apparatuses 100 described above. The encryption two-dimension code generation module 200 is configured to receive a card number and a password of a membership card, obtain corresponding member lesson information according to the card number and the password of the membership card, and then invoke an encryption algorithm to encrypt the member lesson information by using a preset private key to generate a corresponding encryption two-dimension code; the member lesson information includes a membership card number, a membership name, and lesson time. Here, the encrypted two-dimensional code generating module 200 may be mounted on various mobile terminals such as a mobile phone and a tablet computer.

Signature printing apparatus 100 includes control module 110, data acquisition module 120, display module 130, and printing module 140; the control module 110 includes a scan determination sub-module and a sleep state control sub-module. The scanning judging sub-module is used for judging whether the encrypted two-dimensional code is scanned or not in real time. The data acquisition module 120 is configured to scan and read the currently received encrypted two-dimensional code when it is determined that the encrypted two-dimensional code needs to be scanned, and decrypt and identify the encrypted two-dimensional code to obtain the member class information corresponding to the encrypted two-dimensional code. Here, it will be appreciated by those skilled in the art that in the signature printing system 10 of the present invention, the control module 110 may be integrally loaded on the system main control board.

The display module 130 is configured to display the member class information after the data acquisition module 120 acquires the member class information. The printing module 140 is configured to wait for receiving a printing instruction of the member class information, and print a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with member class information. And the dormant state control sub-module is used for entering the dormant state and displaying and playing the prestored built-in picture when judging that the scanning of the encrypted two-dimensional code is not needed.

In order to more clearly illustrate the working principle of the signature printing system 10 of the present invention, the printing process of the signature printing system is further described below by taking a specific embodiment in which the encrypted two-dimensional code generating module 200 is loaded on a mobile phone, the data collecting module 120 is implemented by using a two-dimensional code scanner, the display module 130 is implemented by using a display screen, and the printing module 140 is implemented by using a printer as an example.

Firstly, a member inputs a card number password of the member, and generates an encrypted two-dimensional code by logging in the mobile phone APP and then writing information into the mobile phone. Then, the APP encrypted two-dimensional code in the member mobile phone is identified through the machine two-dimensional code scanner, and the identified data is displayed on a display screen. Further, clicking the "print" button on the display screen will print the member lesson information on the sticker name decal. Therefore, before a member takes a lesson and enters a classroom, the member presents the two-dimensional code on the mobile phone APP, the lesson information is displayed through the machine two-dimensional code identifier, the member verifies to click "print" without error, the member can directly adhere to the member in front of the member to enter the classroom with the printed self-adhesive name paste, and a teacher can know the lesson related information of the member according to the name paste.

In addition, it should be noted that, any combination of the technical features of the above-described embodiments may be used, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (4)

1. A signature printing method, characterized by comprising the following steps:

judging whether to scan the encrypted two-dimensional code in real time;

the method comprises the steps that the encrypted two-dimension code is obtained by inputting a member card number and a password of a lesson taker, logging in a corresponding application system installed on a mobile terminal, receiving the card number and the password of the member card by the application system, acquiring corresponding member lesson information according to the card number and the password of the member card, calling a symmetric algorithm, and encrypting the member lesson information by using a preset private key; and is also provided with

The member lesson information includes a membership card number, a membership name, and lesson time;

when judging that the encrypted two-dimensional code needs to be scanned, scanning and reading the currently received encrypted two-dimensional code; invoking the symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to the private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not; if the decrypted encrypted two-dimensional code is identified to be correct, acquiring the corresponding member class information in the encrypted two-dimensional code; if the decrypted encrypted two-dimensional code is identified to be incorrect, returning to the step of continuously executing real-time judgment on whether to scan the encrypted two-dimensional code or not;

wherein, the identifying whether the decrypted encrypted two-dimensional code is right refers to judging whether the decrypted data block is empty; if the decrypted data block is judged to be empty, the decrypted encrypted two-dimensional code is incorrect; if the decrypted data block is judged to be not empty, the decrypted encrypted two-dimensional code is indicated to be correct; and is also provided with

The encryption algorithm is called to encrypt and decrypt the two-dimensional code, the symmetric algorithm is used for encrypting and decrypting the data by using the same key and initialization vector, the data block is encrypted by the private key, and only the public key which is correspondingly issued can decrypt the data block, so that the correct identity of the issued message is ensured;

After the member lesson information is obtained, the member lesson information is displayed;

waiting for receiving a printing instruction of the member class information, and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and displaying and playing a prestored built-in picture;

after the member class information is acquired and displayed, the method further comprises the following steps:

judging whether member signature information is received or not;

if yes, waiting to receive the printing instruction, and printing the corresponding signature after receiving the printing instruction;

if not, returning to the step of judging whether to scan the encrypted two-dimensional code in real time;

when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and displaying and playing a prestored built-in picture, wherein the method comprises the following steps of:

when judging that the scanning of the encrypted two-dimensional code is not needed, entering a dormant state and judging whether the current state is a timeout dormant state in real time;

If yes, displaying and playing the preset stored built-in picture;

if not, returning to the step of executing the real-time judgment on whether to scan the encrypted two-dimensional code;

when the step of displaying and playing the pre-selected stored built-in picture is executed, the method further comprises the following steps:

judging whether the current state is a sleep exit state or not;

if yes, the sleep state is exited, and the step of judging whether to scan the encrypted two-dimensional code in real time is executed in a return mode;

if not, continuing to execute the step of displaying and playing the prestored built-in picture;

the signature printed out in the method adopts the self-adhesive signature as the signature, after the signature is printed out through the steps, a lessor can directly paste the signature in front of the lesson and enter a classroom, and a teacher can directly obtain the related information of the member according to the member class information displayed on the signature.

2. A signature printing apparatus, characterized by comprising:

a base of rectangular structure;

an upward extending machine body bracket is fixed on one side of the base; the upper part of the machine body support is provided with a display device which is obliquely arranged in the vertical direction; a printing device is arranged in the middle of the machine body support;

The top end of the base is provided with a containing groove with a cuboid structure; a system main control board is arranged in the accommodating groove; the system main control board is connected with the main control board power adapter; the rear wall of the accommodating groove is provided with a network cable interface, a power interface and a power switch; a plurality of heat dissipation holes are formed in the two opposite sides of the accommodating groove;

the printing device comprises a containing cavity; the accommodating cavity comprises an upper cavity and a lower cavity;

a two-dimensional code scanner is arranged in the lower cavity; the two-dimensional code scanner can identify the two-dimensional code; an operating platform with a square structure is fixed on the front side of the middle part of the machine body bracket; the middle part of the top end of the operating platform is provided with a first through hole with a square structure; the two-dimensional code scanner is arranged at the lower end of the first through hole; a transparent glass plate with a square structure is arranged at the top end of the first through hole; two horns are also arranged in the lower cavity; the two horns are connected with the system main control board;

a bar code printer is arranged in the upper cavity; the bar code printer is connected with the printer power adapter, the printer control board and the printing paper; the front side of the middle part of the machine body bracket is provided with a groove with an opening structure at the front end; a second through hole penetrating the machine body support and provided with a cuboid structure; the front end of the second through hole is propped against the middle part of the rear end of the groove; the bar code printer is arranged at the rear end of the second through hole; the printing paper can pass through the second through hole;

The display device includes a receiving frame; a capacitive touch screen is fixed at the front end of the accommodating frame; the rear side of the accommodating frame is provided with a liquid crystal display screen, a touch screen control card, a display screen power adapter and a display control panel; the liquid crystal display screen is connected with the display screen power adapter and the display control panel; the display control panel is connected with the system main control panel; the capacitive touch screen is connected with the touch screen control card; the touch screen control card is connected with the system main control board;

the system main control board is used for controlling the system main control board to control the system main control board; judging whether to scan the encrypted two-dimensional code in real time;

the two-dimension code scanner is used for scanning and reading the currently received encrypted two-dimension code when the system main control board judges that the encrypted two-dimension code needs to be scanned; invoking a symmetric algorithm, decrypting the encrypted two-dimensional code through a public key corresponding to a private key, and identifying whether the decrypted encrypted two-dimensional code is correct or not; if the decrypted encrypted two-dimensional code is identified to be correct, acquiring corresponding member class information in the encrypted two-dimensional code; if the decrypted encrypted two-dimensional code is identified to be incorrect, returning to the system main control board, and continuously executing the step of judging whether to scan the encrypted two-dimensional code in real time by the system main control board;

The liquid crystal display screen is used for displaying the member class information after the two-dimensional code scanner acquires the member class information;

the bar code printer is used for waiting to receive a printing instruction of the member class information and printing a signature of the member class information according to the printing instruction after receiving the printing instruction; the printed signature is printed with the member class information;

the system main control board is also used for entering a dormant state and controlling the liquid crystal display screen when judging that the scanning of the encrypted two-dimensional code is not needed, and displaying and playing the prestored built-in picture by the liquid crystal display screen;

the system main control board is also used for judging whether member signature information is received or not;

if yes, waiting to receive the printing instruction, and printing the corresponding signature after receiving the printing instruction;

if not, returning to the step of judging whether to scan the encrypted two-dimensional code in real time;

wherein, the identifying whether the decrypted encrypted two-dimensional code is right refers to judging whether the decrypted data block is empty; if the decrypted data block is judged to be empty, the decrypted encrypted two-dimensional code is incorrect; if the decrypted data block is judged to be not empty, the decrypted encrypted two-dimensional code is indicated to be correct; and is also provided with

The encryption algorithm is called to encrypt and decrypt the two-dimensional code, the symmetric algorithm is used for encrypting and decrypting the data by using the same key and initialization vector, the data block is encrypted by the private key, and only the public key which is correspondingly issued can decrypt the data block, so that the correct identity of the issued message is ensured;

the signature printed by the equipment adopts the self-adhesive signature as the signature, after the signature is printed by the steps, a lessor can directly paste the signature in front of the lessor to enter a classroom, and a teacher can directly obtain the related information of the member according to the member class information displayed on the signature.

3. The signature printing apparatus as recited in claim 2 wherein the device further comprises a first baffle, a second baffle, and a third baffle;

the first baffle and the second baffle are arranged on two opposite sides of the machine body bracket; the third baffle is arranged at the top end of the machine body bracket.

4. A signature printing apparatus as claimed in claim 2 or claim 3, wherein a cover plate is provided on the front side of the body support below the operation table; a reinforcing plate is fixed on the front side of the cover plate;

The front end of the reinforcing plate is obliquely arranged in the vertical direction; the top end of the reinforcing plate is abutted against the bottom end of the operation table;

the reinforcing plate and the cover plate are integrally formed.