Financial self-service equipment with multi-terminal verification
By combining multi-terminal verification and physical protection design, the problem of traditional financial self-service equipment being easily cracked is solved, achieving highly secure multi-factor authentication, preventing password snooping and fraudulent transactions, and improving the security performance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional financial self-service terminals rely on a single password for verification, which is easily cracked, leading to frequent risks of theft and fraud. Furthermore, the password input process is easily observed, resulting in insufficient security.
The financial self-service equipment adopts multi-terminal verification, integrating facial recognition, fingerprint recognition, card recognition and password input modules. Combined with an integrated tamper-proof shell and anti-peeping module, the anti-peeping screen cover is driven by an electric linear guide to cover the password input area, forming a restricted viewing angle. The main control circuit module only executes transaction authorization after multiple verifications and matching.
It significantly improves the security of financial self-service terminals, reduces the risk of theft and fraud, prevents password leakage, and meets the needs of high-security scenarios.
Smart Images
Figure CN223986341U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of financial self-service equipment technology, specifically relating to a multi-terminal verification financial self-service equipment. Background Technology
[0002] With the accelerated digitalization of financial services, financial transaction terminals (such as POS machines and ATMs) are widely used in payment and transfer scenarios. These devices need to ensure user identity and fund security while maintaining transaction efficiency. However, traditional identity verification methods (such as passwords and magnetic stripe cards) are easily cracked or copied, leading to frequent risks such as theft and fraud, seriously threatening financial security and making it difficult to cope with increasingly complex cybersecurity challenges.
[0003] Existing financial terminal devices based on password verification authorize transactions by having users enter a preset password, and the transaction is executed upon successful password verification. While this solution simplifies the operation process, it relies solely on password verification. If the password is leaked or cracked, attackers can easily impersonate the user to conduct illegal transactions. Furthermore, the password input process can be observed, further reducing security. Therefore, it is necessary to improve the security performance of financial self-service terminals to meet the needs of high-security scenarios. Utility Model Content
[0004] To address the aforementioned problems in the existing technology, this utility model provides a multi-terminal verification financial self-service device. The technical problem to be solved by this utility model is achieved through the following technical solution:
[0005] This utility model provides a multi-terminal verification financial self-service device, comprising: an integrated tamper-proof housing, including a display panel, an operation panel, and a facial recognition module disposed above a maintenance compartment; the operation panel integrates a fingerprint recognition module, a password input module, an anti-peeping module, and a card recognition module; the facial recognition module is disposed above the display panel and has a downward tilt angle of 15-45°; a glass layer is disposed in part or all of the operation panel, and the fingerprint recognition module and the password input module are both embedded below the glass layer; the anti-peeping module includes an anti-peeping screen cover and an electric linear guide rail, which, when the password input... When the password input module is triggered, the electric linear guide rail drives the privacy screen cover to extend to partially or completely cover the top of the password input module, forming a viewing angle restriction area of at least 60° to prevent peeping; the facial recognition module is used to identify the operator's identity information, the fingerprint recognition module is used to identify fingerprint information, the password input module is used to identify password information, and the card recognition module is used to identify authorized card information; the maintenance compartment is equipped with a main control circuit module, and when the fingerprint recognition module, the password input module, the card recognition module, and the facial recognition module all pass the identification, the main control circuit module completes the transaction authorization.
[0006] In one embodiment of this utility model, the integrated anti-tamper housing adopts an embedded screw hole structure, and a tilt sensor is provided inside the integrated anti-tamper housing. When the tilt angle exceeds 10°, the main control circuit module erases the identity recognition information, fingerprint recognition information, password recognition information, authorization card recognition information, and transaction authorization information stored therein.
[0007] In one embodiment of this utility model, the display panel is a touch panel, and the surface of the display panel is provided with a polarizing privacy film.
[0008] In one embodiment of this utility model, the facial recognition module includes: a camera and a support frame, wherein the camera is rotatably connected to the support frame, and the support frame is disposed above the display panel; the camera can rotate vertically through the support frame, and the camera uses horizontal rotation tracking within a 45° range; when the facial recognition module identifies that the operator's identity information does not match or there are more than one operator, the privacy screen cover is extended.
[0009] In one embodiment of this utility model, the fingerprint recognition module is a fingerprint sensor, and the fingerprint sensor is a capacitive array integrated below the glass layer.
[0010] In one embodiment of the present invention, the privacy screen cover includes a tempered glass hardening coating, a polarizing film, and a polycarbonate substrate arranged sequentially.
[0011] In one embodiment of this utility model, the privacy module further includes: a base shell panel, which covers the outer periphery of the privacy screen cover, and two electric linear guides are symmetrically arranged, with the base shell panel rigidly connected to the two electric linear guides respectively.
[0012] In one embodiment of this utility model, position sensors are respectively provided at both ends and the middle part of the electric linear guide rail. The position sensors are Hall switches, which are used to detect the position of the privacy screen cover in real time.
[0013] In one embodiment of this utility model, the main control circuit module is provided with a biometric storage module, which stores an encrypted identification template and a transaction key. The encrypted identification template includes a fingerprint feature template, a password feature template, a card feature template, and a facial feature template. The transaction key is used for transaction authorization.
[0014] In one embodiment of this utility model, the integrated anti-tamper housing is disposed in the operating cabin, the operating cabin is provided with a door with a lock, the door lock is an electromagnetic lock equipped with a Hall sensor; when the password input module triggers password input and the door lock is opened, the privacy screen cover is pushed out.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model's multi-terminal verification financial self-service device effectively enhances the security of financial self-service terminals through a collaborative design of multi-factor authentication and physical protection. The device employs an integrated tamper-proof housing. After the operator inserts an authorized card, multi-terminal verification including facial recognition, fingerprint recognition, password recognition, and card recognition is initiated, overcoming the vulnerability of traditional devices relying on a single password. An anti-peeping module uses an electrically driven linear guide to cover the password input area, creating a restricted viewing angle and preventing the input process from being observed and leading to password leakage. The tilted installation design of the facial recognition module further prevents peeping into the password input area. The main control circuit module only executes transaction authorization after all identification and verification information matches. By constructing multiple security barriers, the risk of theft and fraud is significantly reduced, improving the security performance of the financial self-service terminal and meeting the needs of high-security scenarios.
[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a multi-terminal verification financial self-service device provided in an embodiment of this utility model;
[0019] Figure 2 This is a front view of the structure of a multi-terminal verification financial self-service device provided in this embodiment of the utility model;
[0020] Figure 3 This is provided by the embodiment of the present utility model. Figure 1 A schematic diagram of the local structure at point I;
[0021] Figure 4 This is provided by the embodiment of the present utility model. Figure 1 A schematic diagram of the local structure at point II;
[0022] Figure 5 This is a flowchart of the multi-terminal verification financial self-service device provided in this embodiment of the utility model.
[0023] Reference numerals: 100-Integrated tamper-proof housing; 110-Display panel; 120-Operation panel; 121-Fingerprint recognition module; 122-Password input module; 123-Anti-peeping module; 1231-Anti-peeping screen cover; 1232-Electric linear guide rail; 1233-Base housing panel; 124-Card recognition module; 130-Facial recognition module; 131-Camera; 132-Support frame; 140-Maintenance compartment; 141-Main control circuit module; 142-Biometric storage module; 200-Operation compartment; 210-Door. Detailed Implementation
[0024] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description of a multi-terminal verification financial self-service device based on this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0025] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the specific embodiments with reference to the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding can be gained of the technical means and effects adopted by this utility model to achieve the intended purpose. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the technical solution of this utility model.
[0026] Example 1
[0027] like Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the structure of a multi-terminal verification financial self-service device provided in an embodiment of this utility model; Figure 2 This is a front view of the structure of a multi-terminal verification financial self-service device provided in this embodiment of the utility model; Figure 3 This is provided by the embodiment of the present utility model. Figure 1 A schematic diagram of the local structure at point I; Figure 4 This is provided by the embodiment of the present utility model. Figure 1 A schematic diagram of the local structure at point II.
[0028] This embodiment provides a multi-terminal verification financial self-service device, including: an integrated tamper-proof housing 100; wherein, the integrated tamper-proof housing 100 includes a display panel 110, an operation panel 120, and a facial recognition module 130 disposed above a maintenance compartment 140, the operation panel 120 integrating a fingerprint recognition module 121, a password input module 122, an anti-peeping module 123, and a card recognition module 124; the facial recognition module 130 is disposed above the display panel 110, and the facial recognition module 130 is provided with 15-45 The downward tilt angle (θ2) is °; a glass layer is provided in part or all of the operation panel 120, and the fingerprint recognition module 121 and the password input module 122 are both embedded below the glass layer; the anti-peeping module 123 includes an anti-peeping screen cover 1231 and an electric linear guide rail 1232. When the password input module 122 triggers password input, the electric linear guide rail 1232 drives the anti-peeping screen cover 1231 to extend to partially or completely cover the top of the password input module 122 and form a viewing angle restriction area of at least 60° to prevent peeping.
[0029] For example, a 60° viewing angle restriction area means that the password input module 122 cannot be seen from behind the operator within a viewing angle of at least 60°. In other words, a vertical viewing angle restriction of at least 60° is formed to prevent peeping from behind and to the side.
[0030] For example, the integrated anti-tamper housing 100 may also be equipped with an ID card reading module, a social security card reading module, and a receipt printing module, but this utility model does not limit this.
[0031] For example, the maintenance compartment 140 is located at the bottom of the equipment and is used to install the main control circuit module 141 and provide an interface for equipment maintenance.
[0032] In this embodiment, the facial recognition module 130 is used to identify the operator's identity information, the fingerprint recognition module 121 is used to identify fingerprint information, the password input module 122 is used to identify password information, and the card recognition module 124 is used to identify authorized card information; the maintenance cabin 140 is equipped with a main control circuit module 141, and when the fingerprint recognition module 121, the password input module 122, the card recognition module 124 and the facial recognition module 130 have all passed the identification, the main control circuit module 141 completes the transaction authorization.
[0033] Specifically, during the transaction, the fingerprint recognition module 121, password input module 122, card recognition module 124, and facial recognition module 130 cooperate with each other and share verification information in real time. When any module detects an anomaly, it will activate corresponding protective measures, such as the privacy screen cover 1231 being pushed out or the transaction being terminated, to ensure the security of the transaction process.
[0034] In an optional implementation, the integrated tamper-proof housing 100 adopts an embedded screw hole structure to achieve tamper protection. The integrated tamper-proof housing 100 is equipped with a tilt sensor. When the tilt angle exceeds 10°, the main control circuit module 141 erases the identity recognition information, fingerprint recognition information, password recognition information, authorization card recognition information and transaction authorization information stored therein, such as by instantaneous power failure or data overwrite mechanism to erase the information.
[0035] In an optional implementation, the display panel 110 is a touch panel, and the surface of the display panel 110 is provided with a polarizing privacy film to prevent others from peeping at the screen content from the side. Together with the privacy screen cover 1231, it forms a comprehensive visual protection system to further enhance the security of the device.
[0036] In an optional implementation, the facial recognition module 130 includes a camera 131 and a support frame 132, wherein the camera 131 is rotatably connected to the support frame 132, and the support frame 132 is disposed above the display panel 110; the camera 131 can rotate vertically through the support frame 132, and the camera 131 uses horizontal rotation tracking within a range of 45°; when the facial recognition module 130 identifies that the identity information of the operator does not match or that there is more than one operator, the privacy screen cover 1231 is extended.
[0037] For example, by tilting the camera 131 to create a limited viewing angle, only the operator's face is captured, while the password input process is not. This prevents the input process from being observed and thus prevents password leakage. The camera 131 can rotate vertically via the support bracket 132, and it can also perform horizontal rotation tracking within a 45° range. It can automatically adjust its angle to accurately capture the operator's facial information, ensuring the accuracy and reliability of facial recognition. This also prevents multiple people from operating the device simultaneously, further enhancing its security.
[0038] In an alternative implementation, the fingerprint recognition module 121 is a fingerprint sensor, which is a capacitive array integrated beneath the glass layer.
[0039] In an optional embodiment, the privacy screen cover 1231 includes a tempered glass hardening coating, a polarizing film, and a polycarbonate substrate arranged sequentially.
[0040] In an optional embodiment, the privacy module 123 further includes: a base panel 1233, which covers the outer periphery of the privacy screen cover 1231, and two electric linear guides 1232 are symmetrically arranged, with the base panel 1233 rigidly connected to the two electric linear guides 1232 respectively.
[0041] For example, the password input module 122 is positioned with a slope, which, combined with the privacy screen cover 1231, partially or completely covers the top of the password input module 122 and forms a viewing angle restriction area (θ1) of at least 60° to prevent peeping.
[0042] For example, both the privacy screen cover 1231 and the base panel 1233 have a clearance arc at the bottom to help the operator determine the input position and retain a certain viewing angle.
[0043] For example, the password input module 122 is a dynamically reconfigurable capacitive keypad. A capacitive touch sensor array is embedded below the glass layer. The capacitive touch sensor array consists of multiple sets of capacitive units. Through a dynamic keypad algorithm, a numeric keypad distribution map is randomly generated when the password input is triggered during each transaction. The effective sensing area of the capacitive sensor array is adjusted synchronously, and a unique input interface is generated during each transaction.
[0044] Understandably, the size of the password input module 122, the corresponding slope setting, and the length of the privacy screen cover 1231 can all be set according to the actual height and the angle of the viewing area. For example, at least a gap is provided between the privacy screen cover 1231 and the password input module 122 for a person to reach in and input the password. This utility model does not limit this.
[0045] In one optional implementation, position sensors are provided at both ends and the middle part of the electric linear guide 1232. The position sensors are Hall switches used to detect the position of the privacy screen cover 1231 in real time.
[0046] In an optional implementation, the main control circuit module 141 is provided with a biometric storage module 142, which stores an encrypted identification template and a transaction key. The encrypted identification template includes a fingerprint feature template, a password feature template, a card feature template, and a facial feature template; the transaction key is used for transaction authorization. The identity recognition information, fingerprint recognition information, password recognition information, authorized card recognition information, and transaction authorization information are temporarily stored in the main control circuit module 141 and securely compared with the stored encrypted identification template during a transaction.
[0047] For example, the encrypted identification template stored in the biometric storage module 142 is securely stored using encryption technology, such as asymmetric encryption algorithms or hash processing. The biometric and password information entered by the user is encrypted and then securely compared with the pre-stored encrypted identification template. Upon successful matching, a transaction key is triggered to complete the authorization. Understandably, since this process is based on a mature encryption verification mechanism, it will not be described in detail further.
[0048] In one optional embodiment, the integrated tamper-proof housing 100 is disposed inside the operating compartment 200, the operating compartment 200 is provided with a door 210 with a lock, the door lock being an electromagnetic lock equipped with a Hall sensor; when the password input module 122 triggers password input and the door lock is opened, the privacy screen cover 1231 is pushed out.
[0049] In one optional implementation, the financial self-service device of this invention prioritizes user experience while ensuring security. The operation panel 120 features a simple and clear layout, with easy-to-understand operation procedures for each module. When users perform multi-terminal verification, the device guides them through the process using methods such as voice prompts and screen animations, ensuring that users can complete transactions quickly and accurately, thus enhancing the user experience.
[0050] like Figure 5 As shown, Figure 5 This is a flowchart of the multi-terminal verification financial self-service device provided in this embodiment of the utility model.
[0051] The working process of the multi-terminal verification financial self-service device in this embodiment is as follows:
[0052] After an operator or user initiates a transaction, an authorization card is first inserted, and the card recognition module 124 verifies the card information. Subsequently, the password input module 122 on the operation panel 120 triggers the automatic extension of the privacy screen cover 1231, creating a restricted viewing angle to prevent peeping, and the user enters their identification password. Simultaneously, the fingerprint recognition module 121 collects fingerprint information, and the facial recognition module 130 captures the user's facial data through a tilting camera 131. The main control circuit module 141 compares the card information, encrypted password, fingerprint, and facial features with pre-stored templates in real time. If any verification fails, the transaction terminates. After all verifications match, the transaction key authorization completes the transaction. Furthermore, the integrated tamper-proof housing 100 incorporates a tilt sensor; if the device tilts abnormally by more than 10°, sensitive data is immediately erased. By organically combining biometrics, dynamic privacy protection, and structural protection, and linking multi-factor verification with physical protection, multiple security barriers are constructed to ensure high security during the transaction process, significantly reducing the risks of theft, data leakage, and fraud.
[0053] In addition, the privacy module 123 can also be linked with other modules, covering multiple security trigger conditions: when the operator triggers the password input operation through the password input module 122, the electric linear guide rail 1232 immediately drives the privacy screen cover 1231 to extend, partially or completely covering the password area and forming a viewing angle restriction of at least 60° to prevent the input process from being spied on. If the facial recognition module 130 detects that the operator's identity does not match, multiple people operate at the same time, or the camera 131 fails to effectively capture the face, the privacy screen cover 1231 will extend simultaneously to block potential risks; when the door 210 of the operating cabin 200 is abnormally opened after password input, or the tilt sensor built into the integrated tamper-proof housing 100 detects that the device is tilted more than 10° (possibly due to physical damage or movement), the privacy screen cover 1231 will be forcibly extended and trigger the data erasure mechanism. Furthermore, during the transaction process, if any biometric verification fails, the privacy screen cover 1231 will remain covered until the transaction is terminated. By linking multiple dimensions such as password input, identity verification anomalies, physical intrusion, and device status monitoring, the privacy screen cover 1231 dynamically responds to different security threats, forming a proactive protection closed loop.
[0054] It is understandable that the multi-terminal verification procedure can be selectively used according to actual needs. For example, the operator's identity information can be verified by the facial recognition module 130 and transaction authorization can be carried out, but this does not affect the effect of the multi-terminal verification financial self-service equipment in this embodiment to achieve multi-terminal verification to improve security.
[0055] This utility model's multi-terminal verification financial self-service device effectively enhances the security of financial self-service terminals through a collaborative design of multi-factor authentication and physical protection. The device employs an integrated tamper-proof housing. After the operator inserts an authorized card, multi-terminal verification including facial recognition, fingerprint recognition, password recognition, and card recognition is initiated, overcoming the vulnerability of traditional devices relying on a single password. An anti-peeping module uses an electrically driven linear guide to cover the password input area, creating a restricted viewing angle and preventing the input process from being observed and leading to password leakage. The tilted installation design of the facial recognition module further prevents peeping into the password input area. The main control circuit module only executes transaction authorization after all identification and verification information matches. By constructing multiple security barriers, the risk of theft and fraud is significantly reduced, improving the security performance of the financial self-service terminal and meeting the needs of high-security scenarios.
[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device comprising said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.
[0057] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A multi-end authenticated financial self-service device, characterized by, The application relates to an integrated anti-disassembly shell (100) which comprises a display panel (110) arranged above a maintenance cabin (140), an operation panel (120) and a face recognition module (130), the operation panel (120) is integrated with a fingerprint recognition module (121), a password input module (122), an anti-peeping module (123) and a card recognition module (124), the face recognition module (130) is arranged above the display panel (110), and the face recognition module (130) is provided with a downward inclination angle of 15-45 DEG, part or all areas of the operation panel (120) are provided with a glass layer, the fingerprint recognition module (121) and the password input module (122) are embedded below the glass layer, the anti-peeping module (123) comprises an anti-peeping screen cover (1231) and an electric linear guide rail (1232), when the password input module (122) triggers password input, the electric linear guide rail (1232) drives the anti-peeping screen cover (1231) to push out to partially or wholly cover the top of the password input module (122), and a visual angle limiting area with an angle of at least 60 DEG is formed to prevent peeping, the face recognition module (130) is used for recognizing identity information of an operator, the fingerprint recognition module (121) is used for recognizing fingerprint information, the password input module (122) is used for recognizing password information, and the card recognition module (124) is used for recognizing authorized card information, the maintenance cabin (140) is provided with a main control circuit module (141), and when the fingerprint recognition module (121), the password input module (122), the card recognition module (124) and the face recognition module (130) are all recognized, the main control circuit module (141) completes transaction authorization. The integrated anti-disassembly shell (100) adopts an embedded screw hole structure, an inclination sensor is arranged in the integrated anti-disassembly shell (100), when the inclination angle exceeds 10 DEG, the main control circuit module (141) erases identity recognition information, fingerprint recognition information, password recognition information, authorized card recognition information and transaction authorization information stored therein. The display panel (110) is a touch panel, and the surface of the display panel (110) is provided with a polarized anti-peeping film. The face recognition module (130) comprises a camera (131) and a support frame (132), the camera (131) is rotationally connected to the support frame (132), and the support frame (132) is arranged above the display panel (110); the camera (131) is rotationally connected to the support frame (132) to realize vertical rotation, and the camera (131) adopts horizontal rotation tracking within a range of 45 DEG. When the face recognition module (130) recognizes that the identity information of an operator is inconsistent or exceeds one operator, the anti-peeping screen cover (1231) is pushed out. The fingerprint recognition module (121) is a fingerprint sensor, and the fingerprint sensor is capacitively arrayed below the glass layer.
2. The multi-end authenticated financial kiosk of claim 1, wherein, 3. The multi-end authenticated financial kiosk of claim 1, wherein, 4. The multi-end authenticated financial kiosk of claim 1, wherein, 5. The multi-end authenticated financial kiosk of claim 1, wherein, 6. The multi-end authenticated financial kiosk of claim 1, wherein, The privacy screen cover (1231) comprises a tempered glass hardening coating, a polarizing film and a polycarbonate substrate arranged in sequence.
7. The multi-end authenticated financial kiosk of claim 6, wherein, The privacy module (123) further comprises a base shell panel (1233) covering the periphery of the privacy screen cover (1231), two electric linear guides (1232) are symmetrically arranged, and the base shell panel (1233) is rigidly connected to the two electric linear guides (1232) respectively.
8. The multi-end authenticated financial kiosk of claim 1, wherein, Two ends and a middle part of the electric linear guide (1232) are respectively provided with a position sensor, which is a Hall switch, for real-time detection of the position of the privacy screen cover (1231).
9. The multi-end authenticated financial kiosk of claim 1, wherein, The main control circuit module (141) is provided with a biological feature storage module (142) storing an encrypted identification template and a transaction key, wherein the encrypted identification template comprises a fingerprint feature template, a password feature template, a card feature template and a face feature template; and the transaction key is used for transaction authorization.
10. The multi-end authenticated financial kiosk of claim 1, wherein, The integrated anti-disassembly shell (100) is arranged in an operation cabin (200), the operation cabin (200) is provided with a cabin door (210) with a door lock, and the door lock is an electromagnetic lock provided with a Hall sensor. When the password input module (122) triggers password input and the door lock is opened, the privacy screen cover (1231) is pushed out.