Real estate registration business online handling system and method

Abstract

The invention discloses a real estate registration service on-line handling system and method, and the system comprises a user access end which is used for carrying out the real-time communication with a plurality of users related to service handling through an external network, carrying out the identity verification of the users, and transmitting the verification result to a server; the data forwarding module is also used for being connected with a virtual hall server through an encrypted intranet and forwarding data of the virtual hall server; the virtual hall server is used for determining a security policy according to the business handling type, the encrypted intranet state and the identity information and the positioning record of each user, and establishing a virtual reception room; the business handling server is used for completing contract signing, material receiving and voice recording in the virtual reception room, and verifying the authenticity of related materials and voice content according to the collaboration file; and the collaborative server is used for storing associated files issued by different government affair departments related to business handling. According to the invention, on-line handling of real estate businesses in which a plurality of parties are required to participate is realized, and the handling efficiency and the user experience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of remote handling of real estate business, and in particular to an online handling system and method for real estate registration business. Background Art

[0002] Real estate registration refers to the registration of real estate property rights (such as land, houses, etc.) in accordance with the law to confirm and publicize property rights and other rights. Traditional real estate registration mostly adopts the method of manual window acceptance, which requires the person in charge to take paper materials to the designated real estate registration acceptance point for processing. Applicants need to queue up at the real estate registration center to submit paper materials. The real estate registration center can only issue relevant certification procedures after manual review for several working days. It can be seen that the traditional business processing process has many constraints and low efficiency, which affects the experience of real estate business processing.

[0003] With the development of high-speed Internet and video compression coding technology, existing technology can realize remote self-service acceptance of some real estate business, but registration business such as real estate transactions or property rights changes requires the presence of multiple parties at the same time to ensure the identity and true intention of each party and prevent fraud or disputes. Due to the requirements of identity verification and document authenticity verification, the handling of these businesses currently still requires multiple parties to go to the designated acceptance point at the same time during the appointment time period for identity verification and material submission.

[0004] Therefore, it is necessary to propose an online system and method for real estate registration business, which can connect with multiple users related to business processing online, establish a virtual reception room based on strict identity verification and security policies, and complete the identity verification, material upload and contract signing of the parties online, thereby reducing the time and energy required for the parties to handle the business on site and improving the efficiency of real estate registration business acceptance. Summary of the invention

[0005] In view of this, the present invention provides a method and system for online processing of real estate registration business, which is used to solve the technical problems that the existing technology is limited by identity verification and security assurance, and cannot process real estate related business online that requires the participation of multiple users, and has high labor costs and low processing efficiency.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] The present invention provides an online real estate registration service processing system, comprising:

[0008] The user access terminal is used for multiple users related to business handling to communicate in real time through the external network, obtain the identity information and location records of each user, and perform identity authentication based on the identity information, location records and reserved registration information of each user; when the user identity authentication is passed, it connects to the virtual hall server through the encrypted intranet and forwards the data of the virtual hall server;

[0009] The virtual lobby server is used to obtain the user's business processing type, determine the security policy based on the business processing type, encrypted intranet status, and the identity information and location records of each user, send the session key to the target business processing server and user access terminal based on the security policy, and establish a virtual reception room for the business processing server and user access terminal to conduct real-time encrypted communication;

[0010] The business processing server is used to complete the contract signing, material collection and voice recording of relevant users in the virtual reception room, and obtain real-time media data of business processing; it is also used to call the collaborative files of the collaborative server through the collaborative intranet, and verify the authenticity of relevant materials and voice content according to the collaborative files;

[0011] The collaborative server is used to store related documents issued by different government departments related to business processing, and provide a related file calling interface for the business processing server.

[0012] Furthermore, the business handling service end includes a document verification module, a contract management module and a payment module;

[0013] The file verification module is used to collect relevant materials according to the business type, analyze and compare the relevant materials based on the collaborative file to confirm the authenticity of the materials, encode the relevant materials after confirming that the materials are authentic and valid, and encrypt and archive them in combination with the identity information of the uploader;

[0014] The contract management module is used to send a business contract with a preset code according to the business type, and the user performs contract authentication after signing the contract online, and performs secondary encryption and archiving based on the user identity information and contract code of both parties to the contract;

[0015] The payment module is used to generate service fee details and amounts, and provide multiple payment methods for users to pay fees.

[0016] Furthermore, the secondary encryption based on the user identity information of both parties to the contract and the contract code includes:

[0017] Acquire facial images of both parties to the contract when the contract is signed, and convert the facial images of both parties into a first feature vector and a second feature vector;

[0018] Obtaining a first key and a second key corresponding to the first eigenvector and the second eigenvector based on a hash function;

[0019] Encrypt the contract code based on the AES encryption algorithm to obtain the contract code key;

[0020] The contract is encrypted twice according to the first key, the second key and the contract encoding key and archived.

[0021] Furthermore, the reserved registration information includes the user's ID number, reserved photo, mobile phone number and biometric information; the user's identity information includes account name, dynamic password information and face recognition information;

[0022] The identity verification according to each user's identity information, location record and reserved registration information includes:

[0023] Send a dynamic password to the user's reserved mobile phone number based on the account name entered by the user. If the dynamic password entered by the user is correct, perform face recognition and liveness detection;

[0024] After the face recognition and liveness detection are passed, the location record is used to determine whether the user's current location is in a common activity area; if so, the user's location information is marked as normal; if not, a safety reminder message is sent to the user and the user's location is marked as abnormal;

[0025] Send the marked user location to the virtual lobby server.

[0026] Furthermore, the virtual lobby server determines the security policy according to the business handling type, the encrypted intranet status, and the identity information and location records of each user, including:

[0027] Determine the user role based on the business processing type and the user's identity information, and determine the preset role security weight based on the user role;

[0028] If the user's location is marked as abnormal, the user's current location security weight is determined based on the user's frequency of use of the current location within a preset time range;

[0029] Determine key information, location detection frequency and auxiliary evidence collection frequency based on role security weight and location security weight.

[0030] Furthermore, the determining of key information based on the role security weight and the location security weight includes:

[0031] Confirm the network bandwidth usage based on the encrypted intranet status;

[0032] The key length and encryption method are allocated to each user based on the role security weight, location security weight and bandwidth usage.

[0033] Furthermore, the key length and encryption method of each user are allocated based on the role security weight, location security weight and bandwidth usage, including:

[0034] Determine the encryption method based on bandwidth usage and service type, and determine the basic key length based on the encryption algorithm;

[0035] The preset basic key length is K0. For a user with a role security weight of WR and a location security weight of LW, when the bandwidth usage is BW, the user's key length K is:

[0036] K=K0+α·WR+σ·LW+λ·BW;

[0037] Among them, α, σ and λ are weight coefficients.

[0038] Furthermore, the virtual lobby server also includes a queue management module;

[0039] The queue number management module is used to allocate queue numbers to users in the order of service application time when the virtual reception room of the target service is full, display the current queue situation on the user interface of the virtual lobby, and notify the user to enter the virtual reception room in a variety of ways when it is the current user's turn.

[0040] Furthermore, the virtual lobby server also includes a reconnection reservation module;

[0041] The reconnection retention module is used to record the user's connection status, queuing information and current service progress. When the user's connection status is interrupted, the preset reconnection program is enabled to reconnect to the virtual reception room, and the business processing flow is continued according to the saved queuing information and service progress.

[0042] The present invention provides a system and method for online processing of real estate registration business. The system verifies the identity of the user based on the identity information and location record through the user access terminal, and forwards the user's business request to the virtual lobby server through the intranet; the virtual lobby server determines the security strategy by comprehensively considering the business processing type, encrypted intranet status and location record, and establishes a virtual reception room for real-time encrypted communication between the business processing service terminal and the user access terminal to ensure the security and stability of communication; the business processing service terminal completes the contract signing, material collection and voice recording of the relevant users, and realizes the online professional processing of real estate registration business involving multiple people. At the same time, the collaborative service terminal provides storage and call of related files, which facilitates the business processing service terminal to verify and use the relevant materials and voice content. The system of the present invention realizes the online processing of real estate registration business requiring the participation of multiple parties under the premise of ensuring identity and data security by combining technical means such as security strategy, encrypted communication and collaborative processing, thereby improving work efficiency and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the application of an online real estate registration service processing system provided by the present invention in real estate registration service;

[0044] Figure 2 A schematic diagram of a real estate registration business processing scenario provided by the present invention;

[0045] Figure 3 A business process diagram of the online method for handling real estate registration business provided by the present invention. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0047] The present invention provides a system and method for online processing of real estate registration business, which are described below respectively.

[0048] A specific embodiment of the present invention discloses an online real estate registration service processing system. Figure 1 is a structural diagram of the online real estate registration business processing system 100, such as Figure 1 As shown, the system 100 includes:

[0049] The user access terminal 101 is used for multiple users related to business handling to communicate in real time through the external network, obtain the identity information and location records of each user, and perform identity authentication based on the identity information, location records and reserved registration information of each user; when the user identity authentication is passed, it connects to the virtual hall server through the encrypted intranet and forwards the data of the virtual hall server;

[0050] The virtual lobby server 102 is used to obtain the user's business processing type, determine the security policy according to the business processing type, the encrypted intranet status, and the identity information and location records of each user, send the session key to the target business processing server and the user access terminal based on the security policy, and establish a virtual reception room for the business processing server and the user access terminal to perform real-time encrypted communication;

[0051] The business processing server 103 is used to complete the contract signing, material collection and voice recording of relevant users in the virtual reception room, and obtain real-time media data of business processing; it is also used to call the collaborative file of the collaborative server through the collaborative intranet, and verify the authenticity of relevant materials and voice content according to the collaborative file;

[0052] The collaborative server 104 is used to store the associated documents issued by different government departments related to business processing, and provide an associated document calling interface for the business processing server.

[0053] Compared with the prior art, the system of this embodiment verifies the user's identity based on the identity information and location record through the user access terminal, and forwards the user's business request to the virtual lobby server through the intranet; the virtual lobby server determines the security strategy by comprehensively considering the business handling type, encrypted intranet status and location record, and establishes a virtual reception room for real-time encrypted communication between the business handling service terminal and the user access terminal to ensure the security and stability of communication; the business handling service terminal completes the contract signing, material collection and voice recording of the relevant users, and realizes the online professional processing of real estate business involving multiple people. At the same time, the collaborative service terminal provides storage and call of related files, which facilitates the business handling service terminal to verify and use relevant materials and voice content. The system of this embodiment combines security strategies, encrypted communications and collaborative handling and other technical means to ensure the security of identity and data, realizes the online handling of real estate business that requires the participation of multiple parties, improves work efficiency and user experience, and has high practical value.

[0054] As a preferred embodiment, the business handling service end includes a document verification module, a contract management module and a payment module;

[0055] The file verification module is used to collect relevant materials according to the business type, analyze and compare the relevant materials based on the collaborative file to confirm the authenticity of the materials, encode the relevant materials after confirming that the materials are authentic and valid, and encrypt and archive them in combination with the identity information of the uploader;

[0056] The contract management module is used to send a business contract with a preset code according to the business type, and the user performs contract authentication after signing the contract online, and performs secondary encryption and archiving based on the user identity information and contract code of both parties to the contract;

[0057] The payment module is used to generate service fee details and amounts, and provide multiple payment methods for users to pay fees.

[0058] like Figure 2 As shown, Figure 2 A schematic diagram showing the real estate business processing scenario.

[0059] It should be noted that in the process of handling real estate business, in order to ensure the authenticity of the transaction, the entire process of handling business will be recorded and videotaped, and video images and clips will be captured and added with digital watermarks as evidence samples. In some embodiments, the user's voice will also be extracted and voiceprint recognition will be performed, and the recognized voice will be timestamped and retained to ensure the authenticity of the transaction. When the business handling personnel find that there is an abnormal flow or the security level cannot meet the business requirements, they can disconnect the network connection and close the virtual reception room.

[0060] As a preferred embodiment, the secondary encryption based on the user identity information of both parties to the contract and the contract code includes:

[0061] Acquire facial images of both parties to the contract when the contract is signed, and convert the facial images of both parties into a first feature vector and a second feature vector;

[0062] Obtaining a first key and a second key corresponding to the first eigenvector and the second eigenvector based on a hash function;

[0063] Encrypt the contract code based on the AES encryption algorithm to obtain the contract code key;

[0064] The contract is encrypted twice according to the first key, the second key and the contract encoding key and archived.

[0065] As an important proof of transaction, the security of online contract signing is particularly important. Based on the facial images of both parties and converted into feature vectors, the key is obtained based on the hash function, and then the contract code is encrypted using the AES encryption algorithm to achieve double encryption of the contract information. Double encryption improves data security. Even if one layer of encryption is cracked, it is still necessary to obtain the key of the second layer of encryption to decrypt the data, which increases the difficulty for attackers. By encrypting and archiving the contract code, the safe storage of the contract file can be ensured, and the traceability of the contract is guaranteed. Each contract uses the feature vector generated by the user's facial image and the key generated by the hash function to achieve personalized encryption processing.

[0066] In some embodiments, blockchain technology can be used to record the metadata of the contract (contract hash, hash of identity information of both parties, timestamp, etc.) into the blockchain. Due to the distributed ledger characteristics and immutability of the blockchain, the information will be permanently stored and transparently traceable, thereby ensuring the authenticity and tamper-proof nature of the contract. When it is necessary to verify the contract, the identity is confirmed by comparing the hash value of the feature vector generated by the current facial image with the hash value stored in the blockchain, the metadata of the contract is obtained from the blockchain, and the hash value of the existing contract content is compared with the hash value stored in the blockchain to ensure that the contract has not been tampered with.

[0067] In some embodiments, the collaborative interface of the collaborative service end is also used to upload the contracts and materials signed during the business handling to the collaborative department. This is because the real estate business handling process involves the collaborative handling of business with the housing management and taxation departments. The real estate system needs to push the data required for the housing management and taxation business collaboration to the housing management and taxation systems. After obtaining the data, the housing management and taxation departments will conduct online signing and filing, tax verification and other business handling in their respective business systems. After completion, the result data will be pushed to the real estate system, and the real estate system will proceed to the next step of the process after obtaining the corresponding result data.

[0068] As a preferred embodiment, the reserved registration information includes the user's ID number, reserved photo, mobile phone number and biometric information; the user's identity information includes account name, dynamic password information and face recognition information;

[0069] The identity verification according to each user's identity information, location record and reserved registration information includes:

[0070] Send a dynamic password to the user's reserved mobile phone number based on the account name entered by the user. If the dynamic password entered by the user is correct, perform face recognition and liveness detection;

[0071] After the face recognition and liveness detection are passed, the location record is used to determine whether the user's current location is in a common activity area; if so, the user's location information is marked as normal; if not, a safety reminder message is sent to the user and the user's location is marked as abnormal;

[0072] Send the marked user location to the virtual lobby server.

[0073] As a preferred embodiment, the virtual lobby server determines the security policy according to the business handling type, the encrypted intranet status, and the identity information and location record of each user, including:

[0074] Determine the user role based on the business processing type and the user's identity information, and determine the preset role security weight based on the user role;

[0075] If the user's location is marked as abnormal, the user's current location security weight is determined based on the user's frequency of use of the current location within a preset time range;

[0076] Determine key information, location detection frequency and auxiliary evidence collection frequency based on role security weight and location security weight.

[0077] Different business types involve different data sensitivity and security requirements, and different user roles (buyers, sellers, agents) face different risks, so role security weights are needed to distinguish security levels. The user's geographic location is an important security factor. Abnormal locations may mean potential security risks, for example, user devices are stolen or maliciously accessed. By analyzing the frequency of user use at a specific location, the credibility of the location can be determined to determine key information, location detection frequency, and auxiliary evidence collection frequency. The combination of multiple factors can more accurately assess the current security, thereby formulating more accurate and reasonable security strategies, and reasonably allocating security resources through dynamic adjustments to enhance overall protection capabilities. In high-risk situations, the frequency of location detection and evidence collection is increased, while in low-risk situations, unnecessary security checks are reduced to optimize system performance.

[0078] As a preferred embodiment, the determining of key information based on the role security weight and the location security weight includes:

[0079] Confirm the network bandwidth usage based on the encrypted intranet status;

[0080] The key length and encryption method are allocated to each user based on the role security weight, location security weight and bandwidth usage.

[0081] As a preferred embodiment, the key length and encryption method of each user are allocated based on the role security weight, location security weight and bandwidth usage, including:

[0082] Determine the encryption method based on bandwidth usage and service type, and determine the basic key length based on the encryption algorithm;

[0083] The preset basic key length is K0. For a user with a role security weight of WR and a location security weight of LW, when the bandwidth usage is BW, the user's key length K is:

[0084] K=K0+α·WR+σ·LW+λ·BW;

[0085] Among them, α, σ and λ are weight coefficients.

[0086] Specifically, in the case of high-weight users and high bandwidth usage, a longer key length, such as 256 bits, is used, and a more complex and secure encryption algorithm, such as AES-256, is selected. In the case of high-weight users and low bandwidth usage, a longer key length is still maintained to ensure data security, such as 128 bits. A more efficient encryption algorithm, such as AES-128, is selected. When selecting an encryption algorithm, it is necessary to weigh the relationship between security and performance to ensure that the system maintains good performance while providing sufficient security. The encryption policy should be dynamically adjustable to adapt to changes in the network environment and user needs. By determining the key length and encryption method based on the weight and bandwidth values, the system can provide the most appropriate security protection for each user handling the business according to the specific situation, while maximizing the use of network resources to achieve a balance between security and efficiency.

[0087] As a preferred embodiment, the virtual lobby service end further includes a queuing management module;

[0088] The queue number management module is used to allocate queue numbers to users in the order of service application time when the virtual reception room of the target service is full, display the current queue situation on the user interface of the virtual lobby, and notify the user to enter the virtual reception room in a variety of ways when it is the current user's turn.

[0089] As a specific implementation example, the virtual reception room supports multi-channel access modes. Any party, whether buyer, seller, agent, etc., can call for a number after logging in through mobile phone verification. Then, the room number (QR code or link) and connection password of the virtual reception room can be shared with other relevant personnel in a variety of ways, so that they can quickly join the reception room and participate in business processing, realizing one person calling for multiple people to collaborate.

[0090] As a preferred embodiment, the virtual lobby server further includes a reconnection reservation module;

[0091] The reconnection retention module is used to record the user's connection status, queuing information and current service progress. When the user's connection status is interrupted, the preset reconnection program is enabled to reconnect to the virtual reception room, and the business processing flow is continued according to the saved queuing information and service progress.

[0092] The embodiment of the present invention also provides a method for online handling of real estate registration business, including:

[0093] Through the user input terminal, multiple users related to business processing communicate in real time through the external network, obtain the identity information and location records of each user, and perform identity authentication based on the identity information, location records and reserved registration information of each user; when the user identity authentication is passed, connect to the virtual hall server through the encrypted intranet and forward the data of the virtual hall server;

[0094] The user's business processing type is obtained through the virtual lobby server, and the security policy is determined according to the business processing type, the encrypted intranet status, and the identity information and location records of each user. Based on the security policy, the session key is sent to the target business processing server and the user access terminal, and a virtual reception room is established for the business processing server and the user access terminal to perform real-time encrypted communication;

[0095] The business processing service end is used to complete the contract signing, material collection and voice recording of relevant users in the virtual reception room, and obtain the real-time media data of business processing; it is also used to call the collaborative files of the collaborative server end through the collaborative intranet, and verify the authenticity of relevant materials and voice content according to the collaborative files;

[0096] The collaborative server stores related documents issued by different government departments related to business processing, and provides a related document calling interface for the business processing server.

[0097] As a specific example, the complete real estate registration business process is as follows:

[0098] (1) Registration and Authentication: After registering and logging in through the government service website, the user selects the "Face-to-face" cloud service hall module for real estate registration, scans the code for face biometric authentication, and after the authentication is completed, the user can jump to the "Face-to-face" cloud service hall. On the mobile terminal, the user can scan the code for registration and authentication through the government app / WeChat applet, and after the registration and authentication is completed, the user can enter the "Face-to-face" cloud service hall.

[0099] (2) Choose a service hall to get a number: that is, choose the place where the real estate archives belong to handle the business. The selection rule is city → district → service hall;

[0100] (3) Entering the reception room: After taking the number, the reception staff will receive the applicant in the virtual reception room. The applicant will be invited to enter the reception room to handle the business.

[0101] (4) Business type selection: Business types are divided into two categories: inquiry and registration. Inquiry is divided into ownership inquiry and business processing progress inquiry.

[0102] (5) Verification of property rights information: The staff fills in the real estate unit number and real estate property certificate number (or issues a file transfer instruction to the applicant to authorize automatic retrieval), verifies and extracts the real estate information, property rights information, and registration restriction information through the shared exchange platform, ensures registration security through business constraint verification, and reduces user input through information extraction.

[0103] (6) Filling in the application form: The processing staff fills in the relevant business application form according to the type of business that the applicant needs to handle. Identity registration authentication and audio and video authentication are used to ensure that the applicant and the interested party are themselves and that they truly intend to do so, thereby achieving face-to-face processing and subsequent face-to-face approval.

[0104] (7) Material upload: Material upload requires the business applicant and interested parties to upload relevant supporting documents based on the type of business application, which will be retained and archived as electronic files.

[0105] (8) Online signing and certification: After verification and comparison, the online signing and certification phase begins. This mainly involves filling out the interview record of the business applicant and the interested party, signing the electronic materials online, and then conducting the certification. The certification content can be pushed by the staff, and the user can just read it orally, for example: I, Zhang, voluntarily sell the house located at xx to Li, and the random verification code is 8592. During this process, the system will automatically record the entire audio and video process. The recorded audio and video provide a strong guarantee for the security and legality of the business.

[0106] (9) Submit application: Once all the above information is obtained and filled in, the processing staff can create the business application case after verifying that the information is correct.

[0107] (10) Online payment: When a business case is successfully generated, the acceptance system will generate tax and fee details and provide them to the face-to-face system, which will be sent to the applicant via instructions for real-time online payment. The payment results can be queried and managed in the acceptance system.

[0108] (11) Business Review: After the tax payment is completed, the subsequent business processing can be carried out. The real estate registration system will conduct review, registration, certification and archiving. It can automatically generate and push electronic certificates to the right holder for self-service certification, or it can be sent by express delivery or collected at the window.

[0109] like Figure 3 As shown, Figure 3 The business process diagram of the online processing method of real estate registration business was displayed. Through the business processing method of the virtual reception room, users do not need to go to the site to handle the business. They can complete the registration, authentication, number collection, business application and other processes through the government service network, government app or WeChat applet, saving a lot of time and energy, improving office efficiency and saving management costs. Users can view the business processing progress and payment details in real time, realizing the transparency and convenience of the whole process.

[0110] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An online real estate registration system, characterized in that: include: The user access terminal is used for multiple users related to business handling to communicate in real time through the external network, obtain the identity information and location records of each user, and perform identity authentication based on the identity information, location records and reserved registration information of each user; When the user identity verification is passed, the virtual lobby server is connected through the encrypted intranet and the data of the virtual lobby server is forwarded; The virtual lobby server is used to obtain the user's business processing type, determine the security policy based on the business processing type, encrypted intranet status, and the identity information and location records of each user, send the session key to the target business processing server and user access terminal based on the security policy, and establish a virtual reception room for the business processing server and user access terminal to conduct real-time encrypted communication; The business processing server is used to complete the contract signing, material collection and voice recording of relevant users in the virtual reception room, and obtain real-time media data of business processing; it is also used to call the collaborative files of the collaborative server through the collaborative intranet, and verify the authenticity of relevant materials and voice content according to the collaborative files; The collaborative server is used to store related documents issued by different government departments related to business processing, and provide a related file calling interface for the business processing server.

2. The online real estate registration system according to claim 1 is characterized in that: The business handling service end includes a document verification module, a contract management module and a payment module; The file verification module is used to collect relevant materials according to the business type, analyze and compare the relevant materials based on the collaborative file to confirm the authenticity of the materials, encode the relevant materials after confirming that the materials are authentic and valid, and encrypt and archive them in combination with the identity information of the uploader; The contract management module is used to send a business contract with a preset code according to the business type, and the user performs contract authentication after signing the contract online, and performs secondary encryption and archiving based on the user identity information and contract code of both parties to the contract; The payment module is used to generate service fee details and amounts, and provide multiple payment methods for users to pay fees.

3. The online real estate registration system according to claim 2 is characterized in that: The secondary encryption based on the user identity information of both parties to the contract and the contract code includes: Acquire facial images of both parties to the contract when the contract is signed, and convert the facial images of both parties into a first feature vector and a second feature vector; Obtaining a first key and a second key corresponding to the first eigenvector and the second eigenvector based on a hash function; Encrypt the contract code based on the AES encryption algorithm to obtain the contract code key; The contract is encrypted twice according to the first key, the second key and the contract encoding key and archived.

4. The online real estate registration system according to claim 1 is characterized in that: The reserved registration information includes the user's ID number, reserved photo, mobile phone number and biometric information; the user's identity information includes account name, dynamic password information and face recognition information; The identity verification according to each user's identity information, location record and reserved registration information includes: Send a dynamic password to the user's reserved mobile phone number based on the account name entered by the user. If the dynamic password entered by the user is correct, perform face recognition and liveness detection; After the face recognition and liveness detection are passed, the location record is used to determine whether the user's current location is in a common activity area; if so, the user's location information is marked as normal; if not, a safety reminder message is sent to the user and the user's location is marked as abnormal; Send the marked user location to the virtual lobby server.

5. The online real estate registration system according to claim 1 is characterized in that: The virtual lobby server determines the security strategy based on the business handling type, encrypted intranet status, and the identity information and location records of each user, including: Determine the user role based on the business processing type and the user's identity information, and determine the preset role security weight based on the user role; If the user's location is marked as abnormal, the user's current location security weight is determined based on the user's frequency of use of the current location within a preset time range; Determine key information, location detection frequency and auxiliary evidence collection frequency based on role security weight and location security weight.

6. The online real estate registration system according to claim 5 is characterized in that: The determining of key information based on the role security weight and the location security weight includes: Confirm the network bandwidth usage based on the encrypted intranet status; The key length and encryption method are allocated to each user based on the role security weight, location security weight and bandwidth usage.

7. The online real estate registration system according to claim 6, characterized in that: The allocating a key length and an encryption method to each user based on the role security weight, the location security weight and the bandwidth usage rate includes: Determine the encryption method based on bandwidth usage and service type, and determine the basic key length based on the encryption algorithm; The preset basic key length is K0. For a user with a role security weight of WR and a location security weight of LW, when the bandwidth usage is BW, the user's key length K is: K=K0+α·WR+σ·LW+λ·BW; Among them, α, σ and λ are weight coefficients.

8. The online real estate registration system according to claim 1 is characterized in that: The virtual lobby server also includes a queuing management module; The queue number management module is used to allocate queue numbers to users in the order of service application time when the virtual reception room of the target service is full, display the current queue situation on the user interface of the virtual lobby, and notify the user to enter the virtual reception room in a variety of ways when it is the current user's turn.

9. The online real estate registration system according to claim 1, characterized in that: The virtual lobby server also includes a reconnection reservation module; The reconnection retention module is used to record the user's connection status, queuing information and current service progress. When the user's connection status is interrupted, the preset reconnection program is enabled to reconnect to the virtual reception room, and the business processing flow is continued according to the saved queuing information and service progress.

10. A method for online handling of real estate registration business, characterized in that: include: Through the user input terminal, multiple users related to business handling communicate in real time through the external network, obtain the identity information and location records of each user, and perform identity authentication based on the identity information, location records and reserved registration information of each user; When the user identity verification is passed, the virtual lobby server is connected through the encrypted intranet and the data of the virtual lobby server is forwarded; The user's business processing type is obtained through the virtual lobby server, and the security policy is determined according to the business processing type, the encrypted intranet status, and the identity information and location records of each user. Based on the security policy, the session key is sent to the target business processing server and the user access terminal, and a virtual reception room is established for the business processing server and the user access terminal to perform real-time encrypted communication; The business processing service end is used to complete the contract signing, material collection and voice recording of relevant users in the virtual reception room, and obtain the real-time media data of business processing; it is also used to call the collaborative files of the collaborative server end through the collaborative intranet, and verify the authenticity of relevant materials and voice content according to the collaborative files; The collaborative server stores related documents issued by different government departments related to business processing, and provides a related document calling interface for the business processing server.

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