Substation key intelligent management machine

Abstract

The application discloses a transformer substation key intelligent management machine and relates to the technical field of electric power operation and inspection.The machine comprises a device shell, a key storage module and a transformer substation key.The device shell comprises a management machine shell body, the inside of the management machine shell body is provided with a key storage area, and the management machine shell body is provided with a shell panel through a hinge connection.The shell panel is opened and closed with the management machine shell body through a panel handle.The key storage module is uniformly arranged in the key storage area.In the application, the position of the required key can be directly displayed through the key intelligent management machine, the time for searching the key is greatly reduced, the consistency of the key, the storage position and the label can be automatically identified, the return of the key is determined, the correctness is prevented, the state is prompted through a state display lamp, the operation and maintenance personnel and the key taking personnel are effectively prompted to reasonably manage the key, and the standardization of the transformer substation key is ensured.

Description

Technical Field

[0001] This invention relates to the field of power operation and maintenance technology, specifically to a smart key management machine for substations. Background Technology

[0002] As a crucial substation, the keys to all room doors, equipment boxes, and cabinet doors are stored in the substation key box. Substation keys are specialized tools used to open and close various equipment, doors, and windows within the substation; their strict management ensures the safety and reliability of substation operation.

[0003] Currently, substation keys are retrieved from a keybox. Users open the keybox with the master key and then search for the corresponding key tag. This method is time-consuming and inefficient, making it difficult for staff to quickly and accurately find the required key. Furthermore, the keybox's security is inadequate, making it easy for unauthorized personnel to misuse keys, potentially causing serious safety incidents. Additionally, there are instances where tags inside the keybox or on the keys themselves are lost or damaged, or where the tags on the keys and the keybox do not match, preventing users from opening the corresponding locks. This inconvenience significantly reduces work efficiency.

[0004] For electronic substation smart keys, they are usually placed on the charging dock, and there is a lack of effective key usage records. This leads to the substation keys not being managed and stored in a standardized manner, making it impossible for substation operation and maintenance personnel to accurately grasp the key usage. This can easily cause equipment, rooms, and bays within the station to be opened by mistake, and can also easily lead to the loss of keys.

[0005] Therefore, it is necessary to design a smart key management machine for substations to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned issues, this application provides a smart key management machine for substations. This machine directly displays the location of required keys, significantly reducing the time spent searching for them. It also automatically verifies the consistency between the key and its storage location and tag, confirming the correctness of key return and security measures. Status indicator lights provide prompts, effectively reminding maintenance personnel and key users to manage keys properly, ensuring standardized substation key management, improving efficiency for future key use, and preventing key loss and inconvenience.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a substation key intelligent management machine, comprising:

[0008] The device housing includes a management unit housing body, the management unit housing body has a key storage area inside, and the management unit housing body is hinged to a housing panel, the housing panel being opened and closed via a panel handle;

[0009] Multiple key storage modules are configured and evenly arranged in the key storage area. Each key storage module consists of a storage area label, a key status light, a key hook, and a key sensing area.

[0010] The operation display module includes a display screen, operation buttons and status indicator lights installed on the housing of the management unit. The operation display module is used for the user's request to open the box.

[0011] The power module supplies power to the management unit by directly connecting to a 220V AC power supply;

[0012] The communication module includes an external communication module for sending text messages to maintenance personnel. After the maintenance personnel provide the password via the text message, the key user can enter the password to open the management unit.

[0013] The substation key consists of a key body and a key sensing module, and the substation key can be paired with the corresponding key sensing area for sensing.

[0014] Furthermore, as a preferred embodiment, the status indicator lights include a management machine operation light, a management machine unlock light, a key mismatch alarm light, and a key not returned alarm light, all installed inside the management machine housing.

[0015] Furthermore, as a preferred embodiment, the panel handle includes a second-order lock installed on the outer casing panel away from the hinge, and a latch is fixedly provided inside the casing of the management unit at a position corresponding to the second-order lock. The second-order lock can be locked and unlocked in two stages by using a spare key with the latch.

[0016] Furthermore, preferably, the second-order lock includes:

[0017] A mounting base, fixed to the outer casing panel, with a handle fixedly provided on the outer side of the mounting base; and

[0018] A rotary locking hole is rotatably located on the outside of the fixed base.

[0019] Furthermore, as a preferred embodiment, the second-order lock further includes:

[0020] The lock cylinder is movably disposed inside the fixed base;

[0021] A rotating plate is rotatably disposed inside the fixed base; and

[0022] The connecting shaft has one end hinged to the lock cylinder and the other end hinged to the rotating plate. The upper end of the connecting shaft is connected to the inner side of the fixed base via a spring, and the lower end of the connecting shaft is rotatably connected to the output end of the miniature electric cylinder. The miniature electric cylinder is fixedly mounted on the inner side of the fixed base.

[0023] Furthermore, as a preferred embodiment, the lock cylinder includes a sliding hook movably disposed within the fixed base, a limiting groove is formed on the sliding hook away from the rotary lock hole, the limiting groove is slidably disposed within the fixed base, and a lock hole is formed on the sliding hook near the rotary lock hole.

[0024] Furthermore, preferably, the width of the keyhole is equal to the width of the locking portion of the spare key.

[0025] Furthermore, as a preferred embodiment, a backup power supply is also provided inside the management unit housing, and the switch for the backup power supply is located on the management unit housing.

[0026] The method for using the substation key intelligent management machine includes the following steps:

[0027] S1. Identity verification: The person who takes the key first applies for opening the box on the operation display module of the substation smart key management machine. After entering the applicant and key number, the management machine sends the opening verification code SMS to the operation and maintenance personnel, and at the same time, the management machine generates the opening record.

[0028] S2. Key Retrieval:

[0029] a. When the power supply of the management unit is normal, after receiving the verification code from the maintenance personnel, the micro electric cylinder extends a fixed distance after the correct verification code is entered, the shaft deflects counterclockwise, the lock cylinder and the latch are completely disengaged, and the user can open the box through the handle and find the required substation key according to the key status light. After the key is taken, the key status light flashes to indicate that the substation key has not been returned, and the substation key not returned alarm light is lit to remind the key user to return the key as soon as possible and close the outer panel.

[0030] b. When the management unit cannot supply power normally and the backup power supply has stored power, turn on the backup power switch and repeat the above steps.

[0031] c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle has a circuit fault, the micro electric cylinder is de-energized. During the spring's recovery process, the micro electric cylinder automatically extends and the connecting shaft deflects counterclockwise, unlocking the lock cylinder and latch in the first stage. The user then uses the spare key and the turnbuckle to rotate 90° clockwise to disengage the lock cylinder and latch for the second stage of unlocking. Finally, the user opens the outer panel through the handle, takes the substation key as needed, closes the outer panel, and takes out the spare key.

[0032] S3. Key return:

[0033] a. When the power supply to the management unit is normal, after the substation key is used up, the person who retrieved the key can apply for the return of the substation key through the operation display module of the substation smart key management unit. After entering the applicant and key number, the miniature electric cylinder extends a fixed distance, the connecting shaft deflects counterclockwise, and the lock cylinder and latch are completely disengaged. The person who retrieved the key can then open the box through the handle and return the substation key to its original position. After that, the key status light will return to normal and remain solid green, indicating that the substation key has been returned to the correct position. If the substation key is not returned to the correct position, the key status light will flash red, and the key mismatch alarm light on the management unit will illuminate. This indicates that the substation key and the key sensing area are mismatched, and the substation key needs to be re-attached to the correct key storage area. After the substation key is correctly returned to its position, the key mismatch alarm light will turn off, and the person who retrieved the key can close the outer panel.

[0034] b. When the management unit cannot supply power normally and the backup power supply has stored power, after the substation key is used up, turn on the backup power switch and repeat the above steps.

[0035] c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle has a circuit failure, the person taking the key uses the spare key to turn the lock hole 90° clockwise to disengage the lock cylinder from the latch for the second unlocking. Finally, the person taking the key opens the outer panel through the handle and repeatedly confirms that the substation key has been returned to the original key storage area, closes the outer panel, and takes out the spare key.

[0036] Compared with the prior art, the present invention provides a smart key management machine for substations, which has the following advantages:

[0037] 1. This invention, through a smart key management machine, can directly display the location of the required key, greatly reducing the time spent searching for the key. It can also automatically identify the consistency between the key and its storage location and tag, determine the correctness of the key's return and prevention status, and provide prompts through status indicator lights. This effectively prompts maintenance personnel and key users to manage the keys properly, ensuring the standardization of substation keys, improving the efficiency of key use in the future, and avoiding the loss and inconvenience of substation keys.

[0038] 2. This invention enables the two-tier lock to be directly unlocked using an opening password when powered on, ensuring that only authorized personnel can access the key, thus improving security. When powered off, the lock cylinder automatically performs a first-stage unlock during the spring reset process, and the user can then perform a second-stage unlock using a backup key. This effectively prevents unauthorized access to the management unit and ensures that the key can still be used in emergencies, providing a backup solution for unexpected situations and enhancing the reliability of the system.

[0039] 3. This invention records the use and management of substation keys. Maintenance personnel are authorized to use the corresponding keys with the appropriate work permits, which prevents personnel from accidentally touching live equipment, ensuring personal safety and normal equipment operation. Furthermore, by recording the personnel who borrow the keys, the use and management of substation keys are clearly assigned to specific individuals, ensuring standardized key management. Attached Figure Description

[0040] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0041] Figure 1 A schematic diagram of the overall structure of the intelligent key management machine for substations;

[0042] Figure 2 A schematic diagram of the internal structure of a substation key intelligent management unit;

[0043] Figure 3 This is a schematic diagram of the structure of the substation key in the intelligent substation key management machine;

[0044] Figure 4 This is a schematic diagram of the panel handle in a smart key management machine for substations.

[0045] Figure 5 A schematic diagram of the spare key in a substation key intelligent management machine;

[0046] Figure 6 A schematic diagram of the main structure of a two-stage lock in a substation key intelligent management machine;

[0047] Figure 7 This is a rear view schematic diagram of the two-stage lock in the intelligent key management machine of a substation;

[0048] Figure 8 A three-dimensional structural diagram of the lock cylinder in a substation key intelligent management machine;

[0049] Figure 9 A schematic diagram of the main structure of the lock cylinder in a substation key intelligent management machine;

[0050] Figure 10 This is a rear view schematic diagram of the lock cylinder in a substation key intelligent management machine.

[0051] Figure 11 A schematic diagram of the complete locking of the second-order lock and the latch in the intelligent key management machine of the substation;

[0052] Figure 12 A schematic diagram of the two-stage lock and the first-stage unlocking mechanism in a substation key intelligent management machine;

[0053] Reference numerals in the attached diagram: 1. Main body of the management unit; 2. Display screen; 3. Operation button; 4. Status indicator light; 5. Key storage area; 6. Outer panel; 7. Power module; 8. Communication module; 9. Key storage module; 10. Panel handle; 11. Hinge; 12. Storage area label; 13. Key status light; 14. Key hook; 15. Key sensing area; 16. Key sensing module; 17. Key body; 101. Two-stage lock; 102. Locking latch; 103. Spare key; 1011. Fixing base; 1012. Handle; 1013. Rotary lock hole; 1014. Lock cylinder; 1015. Rotating plate; 1016. Coupling shaft; 1017. Spring; 1018. Miniature electric cylinder; 10141. Sliding hook; 10142. Limiting groove; 10143. Lock hole. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means two or more.

[0056] Please see Figures 1-12 This invention provides a smart key management machine for substations, comprising:

[0057] The device housing includes a management unit housing body 1, the management unit housing body 1 has a key storage area 5 inside, and the management unit housing body 1 is hinged to a housing panel 6 via a hinge 11. The housing panel 6 is opened and closed with the management unit housing body 1 via a panel handle 10.

[0058] Multiple key storage modules 9 are configured and evenly arranged in the key storage area 5. Each key storage module 9 consists of a storage area label 12, a key status light 13, a key hook 14, and a key sensing area 15.

[0059] The operation display module includes a display screen 2, operation buttons 3 and status indicator lights 4 installed on the housing 1 of the management unit. The operation display module is used for the user's request to open the box.

[0060] Power module 7 supplies power to the management unit by directly connecting to a 220V AC power supply;

[0061] Communication module 8 includes an external communication module for sending SMS messages to maintenance personnel. After the maintenance personnel provide the password sent via SMS, the key user can enter the password to open the management unit.

[0062] The substation key consists of a key body 17 and a key sensing module 16, and the substation key can be paired with the corresponding key sensing area 15 for sensing.

[0063] Based on the above technical solution, the key user first applies for key opening via the substation smart key management machine's operation display module. After entering the applicant and key number, the management machine sends a key opening verification code via SMS to the maintenance personnel. Simultaneously, the management machine generates a key opening record. When the power supply to the management machine is normal, after receiving the verification code from the maintenance personnel, the user enters the correct verification code to open the key. Following the indication from key status light 13, the user locates and retrieves the required substation key. After retrieval, key status light 13 flashes, and status indicator light 4 illuminates, reminding the key user to return the key promptly. The user then closes the outer panel 6. After the substation key is used, the key retrieval... Personnel use the substation smart key management machine's operation display module to apply for the return of substation keys. After entering the applicant and key number, the personnel open the key box and return the substation key to its original position. The key status light 13 then returns to its normal solid green position, indicating that the substation key has been returned to the correct location. If the substation key is not returned to the correct location, the key status light 13 flashes red, and the status display light 4 illuminates, indicating a mismatch between the substation key and the key sensing area 15. The substation key must be reattached to the correct key storage area 5. After the substation key is correctly returned to its original position, the key mismatch alarm light goes out, and the personnel who retrieved the key close the outer panel 6.

[0064] Based on the above technical solutions, the intelligent substation key management machine can directly display the location of the required substation keys, greatly reducing the time spent searching for them. It can also automatically verify the consistency of the substation keys with their storage location and tags, confirming the correctness of key return and prevention, and providing prompts via status indicator light 4. This effectively reminds maintenance personnel and key users to manage substation keys properly, ensuring standardized management and improving efficiency in future key use, preventing loss and inconvenience. Furthermore, by recording the use and management of substation keys, maintenance personnel can use the corresponding keys with the appropriate work permits, preventing accidental contact with live equipment, ensuring personal safety and normal equipment operation. Recording the borrowers of substation keys also clearly assigns responsibility for key use and management to specific individuals, ensuring standardized management of substation keys.

[0065] In one possible implementation, the status indicator 4 includes a management unit operation light, a management unit unlock light, a key mismatch alarm light, and a key not returned alarm light installed inside the management unit housing 1. When the user finds the required substation key according to the prompt of the key status light 13, the key status light 13 flashes to indicate that the key has been retrieved, and the substation key not returned alarm light illuminates to remind the user to return the key as soon as possible. If the substation key is returned to the wrong position, the key status light 13 flashes red, and the management unit's key mismatch alarm light illuminates, indicating that there is a mismatch between the substation key and the key sensing area 15, and the substation key needs to be reattached to the correct key storage area 5.

[0066] In one possible implementation, the panel handle 10 includes a second-order lock 101 mounted on the outer casing panel 6 away from the hinge 11, and a latch 102 is fixedly provided inside the management unit casing 1 at a position corresponding to the second-order lock 101. The second-order lock 101 can be locked and unlocked in two stages by using a spare key 103 with the latch 102.

[0067] It should be noted that, in order to prevent the need to use the substation key in case the panel handle 10 malfunctions or the power module 7 is powered off, the second-level lock 101 and latch 102 can be unlocked by the spare key 103, ensuring that the substation key can still be used in an emergency.

[0068] In one possible implementation, the second-order lock 101 includes:

[0069] A mounting base 1011 is fixed to the outer casing panel 6, and a handle 1012 is fixedly provided on the outer side of the mounting base 1011; and

[0070] The pivot hole 1013 is rotatably disposed on the outside of the fixed base 1011.

[0071] In one possible implementation, the second-order lock 101 further includes:

[0072] The lock cylinder 1014 is movably disposed inside the fixed base 1011;

[0073] The rotating plate 1015 is rotatably disposed inside the fixed base 1011; and

[0074] The connecting shaft 1016 is hinged at one end to the lock cylinder 1014 and at the other end to the rotating plate 1015. The upper end of the connecting shaft 1016 is connected to the inner side of the fixed base 1011 via a spring 1017. The lower end of the connecting shaft 1016 is rotatably connected to the output end of the miniature electric cylinder 1018, and the miniature electric cylinder 1018 is fixedly mounted on the inner side of the fixed base 1011.

[0075] It should be explained that when the power supply to the management unit is normal, the miniature electric cylinder 1018 is in a retracted state, and the coupling 1016 rotates clockwise, as... Figure 11 As shown, at this time, spring 1017 is compressed, and lock cylinder 1014 and latch 203 are fully engaged. When the key is retrieved, the user enters the correct verification code on the operation display module, miniature electric cylinder 1018 extends a fixed distance, and connecting shaft 1016 deflects counterclockwise, completely disengaging lock cylinder 1014 from latch 102. The user can then open the box using handle 1012, allowing the second-level lock 101 to be unlocked directly using the opening code while powered on. This ensures that only authorized personnel can access the key, improving security. After retrieving the substation key as needed, the user closes the outer panel 6, and the miniature electric... The cylinder 1018 retracts, the connecting shaft 1016 rotates clockwise, and the lock cylinder 1014 and the latch 203 are fully engaged. This effectively prevents foreign objects from entering the management unit and also prevents others from taking the substation key from the management unit at will. When returning the key, the user applies for the return of the substation key on the operation display module. After entering the applicant and key number, the miniature electric cylinder 1018 extends a fixed distance, the connecting shaft 1016 deflects counterclockwise, and the lock cylinder 1014 is completely disengaged from the latch 102. The user then opens the box through the handle 1012, returns the key, and closes the outer panel 6.

[0076] Additionally, when the management unit fails to supply power normally or a circuit fault occurs in the panel handle 10, the miniature electric cylinder 1018 is de-energized. During the process of the spring 1017 restoring its deformation, the miniature electric cylinder 1018 automatically extends, the connecting shaft 1016 deflects counterclockwise, and the lock cylinder 1014 and the latch 102 automatically achieve the first stage of unlocking. Figure 12 As shown.

[0077] In one possible implementation, the lock cylinder 1014 includes a sliding hook 10141 movably disposed within the fixed base 1011. A limiting groove 10142 is formed on the sliding hook 10141 away from the rotary lock hole 1013. The limiting groove 10142 is slidably disposed within the fixed base 1011. A lock hole 10143 is formed on the sliding hook 10141 near the rotary lock hole 1013.

[0078] In one possible implementation, the width of the keyhole 10143 is equal to the width of the locking portion of the spare key 103.

[0079] With the above technical solution, if the management unit fails to supply power normally or the panel handle 10 experiences a circuit failure, the lock cylinder 1014 and latch 102 will automatically unlock in the first stage. When the user needs to retrieve the substation key, the user uses the spare key 103 to rotate the lock hole 1013 and lock hole 10143 clockwise by 90°. After the sliding hook 10141 moves, the spring 1017 is compressed, and then the lock cylinder 1014 and latch 102 are disengaged for the second stage of unlocking. This ensures that the substation key can still be used in an emergency, providing a backup solution for unexpected situations and enhancing the reliability of the system. Finally, the user opens the outer panel 6 through the handle 1012, retrieves the substation key as needed, closes the outer panel 6, takes out the spare key 103, the spring 1017 returns to its original deformation, and the lock cylinder 1014 and latch 102 return to the first stage of unlocking.

[0080] In one possible implementation, a backup power supply is also provided inside the management unit housing 1, and the switch of the backup power supply is located on the management unit housing 1. The backup power supply can provide a certain amount of power for the operation of the management unit.

[0081] The method for using the substation key intelligent management machine includes the following steps:

[0082] S1. Identity verification: The person who takes the key first applies for opening the box on the operation display module of the substation smart key management machine. After entering the applicant and key number, the management machine sends the opening verification code SMS to the operation and maintenance personnel, and at the same time, the management machine generates the opening record.

[0083] S2. Key Retrieval:

[0084] a. When the power supply of the management unit is normal, after receiving the verification code from the maintenance personnel, the micro electric cylinder 1018 extends a fixed distance after entering the correct verification code, the connecting shaft 1016 deflects counterclockwise, the lock cylinder 1014 is completely disengaged from the latch 102, and the user can open the box through the handle 1012 and find the required substation key according to the prompt of the key status light 13. After taking it, the key status light 13 flashes to indicate that the substation key has not been returned, and the substation key not returned alarm light is lit to remind the key user to return the key as soon as possible and close the outer panel 6.

[0085] b. When the management unit cannot supply power normally and the backup power supply has stored power, turn on the backup power switch and repeat the above steps.

[0086] c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle 10 has a circuit fault, the miniature electric cylinder 1018 is de-energized. During the process of the spring 1017 restoring its deformation, the miniature electric cylinder 1018 automatically extends, the connecting shaft 1016 deflects counterclockwise, and the lock cylinder 1014 and the latch 102 are unlocked in the first stage. The user uses the spare key 103 and the turn lock hole 1013 to rotate 90° clockwise to disengage the lock cylinder 1014 from the latch 102 for the second stage of unlocking. Finally, the user opens the outer panel 6 through the handle 1012, takes the substation key as needed, closes the outer panel 6, and takes out the spare key 103.

[0087] S3. Key return:

[0088] a. When the power supply to the management unit is normal, after the substation key is used up, the key user applies for the return of the substation key through the operation display module of the substation smart key management unit. After entering the applicant and key number, the miniature electric cylinder 1018 extends a fixed distance, the connecting shaft 1016 deflects counterclockwise, and the lock cylinder 1014 completely disengages from the latch 102. The user then opens the box through the handle 1012 and returns the substation key to its original position. The key status light 13 then returns to its normal green and solid light, indicating that the substation key has been returned to the correct position. If the substation key is not returned to the correct position, the key status light 13 flashes red, and the key mismatch alarm light on the management unit illuminates. This indicates a mismatch between the substation key and the key sensing area 15, and the substation key must be re-attached to the correct key storage area 5. After the substation key is correctly returned to its position, the key mismatch alarm light goes out, and the key user closes the outer panel 6.

[0089] b. When the management unit cannot supply power normally and the backup power supply has stored power, after the substation key is used up, turn on the backup power switch and repeat the above steps.

[0090] c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle 10 has a circuit failure, the person in charge uses the spare key 103 and the turnbuckle 1013 to turn clockwise 90° to disengage the lock cylinder 1014 from the latch 102 for the second unlocking. Finally, the person in charge opens the outer panel 6 through the handle 1012 and repeatedly confirms that the substation key has been returned to the original key storage area 5, closes the outer panel 6, and takes out the spare key 103.

[0091] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart key management machine for substations, characterized in that, It includes: The device housing includes a management unit housing body (1), the management unit housing body (1) has a key storage area (5) inside, and the management unit housing body (1) is hinged to a housing panel (6) by a hinge (11), and the housing panel (6) is opened and closed with the management unit housing body (1) by a panel handle (10); Multiple key storage modules (9) are configured and are evenly arranged in the key storage area (5). The key storage module (9) consists of a storage area label (12), a key status light (13), a key hook (14), and a key sensing area (15). The operation display module includes a display screen (2), operation buttons (3) and status indicator lights (4) installed on the housing (1) of the management machine. The operation display module is used for the user's request to open the box. The power module (7) supplies power to the management unit by directly connecting to a 220V AC power supply; The communication module (8) includes an external communication module for sending text messages to maintenance personnel. After the maintenance personnel provide the password via text message, the key user can open the management machine by entering the password; and The substation key consists of a key body (17) and a key sensing module (16), and the substation key can be paired with the corresponding key sensing area (15) for sensing. The panel handle (10) includes a second-order lock (101) installed on the outer shell panel (6) away from the hinge (11), and a latch (102) is fixedly provided inside the management machine outer shell body (1) at a position corresponding to the second-order lock (101). The second-order lock (101) can be locked and unlocked in two stages by using a spare key (103) and the latch (102). The second-order lock (101) includes: A mounting base (1011) is fixed to the outer casing panel (6), and a handle (1012) is fixedly provided on the outer side of the mounting base (1011); and A pivot hole (1013) is rotatably disposed on the outside of the fixed base (1011); The second-order lock (101) also includes: The lock cylinder (1014) is movably disposed inside the fixed base (1011); The rotating plate (1015) is rotatably disposed inside the fixed base (1011); and A connecting shaft (1016) is hinged at one end to the lock cylinder (1014) and at the other end to the rotating plate (1015). The upper end of the connecting shaft (1016) is connected to the inner side of the fixed base (1011) via a spring (1017). The lower end of the connecting shaft (1016) is rotatably connected to the output end of the miniature electric cylinder (1018), and the miniature electric cylinder (1018) is fixedly installed inside the fixed base (1011). The lock cylinder (1014) includes a sliding hook (10141) movably disposed in the fixed base (1011). A limiting groove (10142) is provided on the sliding hook (10141) away from the rotary lock hole (1013). The limiting groove (10142) is slidably disposed in the fixed base (1011). A lock hole (10143) is provided on the sliding hook (10141) close to the rotary lock hole (1013). The width of the keyhole (10143) is equal to the width of the locking part of the spare key (103).

2. The intelligent substation key management machine according to claim 1, characterized in that: The status indicator lights (4) include a management machine operation light, a management machine unlock light, a key mismatch alarm light, and a key not returned alarm light installed inside the management machine housing (1).

3. The intelligent substation key management machine according to claim 1, characterized in that: The management unit housing (1) is also equipped with a backup power supply, and the switch for the backup power supply is located on the management unit housing (1).

4. The method of using the intelligent substation key management machine according to any one of claims 1-3, characterized in that: Includes the following steps: S1. Identity verification: The person who takes the key first applies for opening the box on the operation display module of the substation smart key management machine. After entering the applicant and key number, the management machine sends the opening verification code SMS to the operation and maintenance personnel, and at the same time, the management machine generates the opening record. S2. Key Retrieval: a. When the power supply of the management unit is normal, after receiving the verification code feedback from the maintenance personnel, the micro electric cylinder (1018) extends a fixed distance after entering the correct verification code, the connecting shaft (1016) deflects counterclockwise, the lock cylinder (1014) and the latch (102) are completely disengaged, and the user can open the box through the handle (1012) and find the required substation key according to the prompt of the key status light (13). After taking it, the key status light (13) flashes to indicate that the substation key has not been returned and the alarm light is lit to remind the key user to return the key as soon as possible and close the outer panel (6). b. When the management unit cannot supply power normally and the backup power supply has stored power, turn on the backup power switch and repeat the above steps. c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle (10) has a circuit fault, the micro electric cylinder (1018) is de-energized. During the process of the spring (1017) restoring its deformation, the micro electric cylinder (1018) automatically extends, the connecting shaft (1016) deflects counterclockwise, the lock cylinder (1014) and the latch (102) are unlocked in the first stage. The user uses the spare key (103) and the turn lock hole (1013) to rotate 90° clockwise to disengage the lock cylinder (1014) and the latch (102) for the second stage of unlocking. Finally, the user opens the outer panel (6) through the handle (1012), takes the substation key as needed, closes the outer panel (6), and takes out the spare key (103). S3. Key return: a. When the power supply of the management machine is normal, after the substation key is used up, the key user applies for the return of the substation key in the operation display module of the substation smart key management machine. After entering the applicant and key number, the micro electric cylinder (1018) extends a fixed distance, the connecting shaft (1016) deflects counterclockwise, the lock cylinder (1014) is completely disengaged from the latch (102), the user opens the box through the handle (1012), and after returning the substation key to its original position, the key status light (13) returns to normal green and stays on. At this time, the substation key is returned to the correct position. When the substation key is returned to the wrong position, the key status light (13) flashes red, the key mismatch alarm light of the management machine is lit, and the substation key and the key sensing area (15) are mismatched. The substation key needs to be re-hung in the correct key storage area (5). After the substation key is correctly returned to its position, the key mismatch alarm light goes out, and the key user closes the outer panel (6). b. When the management unit cannot supply power normally and the backup power supply has stored power, after the substation key is used up, turn on the backup power switch and repeat the above steps. c. When the management unit cannot supply power normally and the backup power supply has no stored power or the panel handle (10) has a circuit failure, the user uses the spare key (103) and the turn lock hole (1013) to turn 90° clockwise to disengage the lock cylinder (1014) from the latch (102) for the second-stage unlocking. Finally, the user opens the outer panel (6) through the handle (1012), and repeatedly confirms that the substation key is returned to the original key storage area (5), closes the outer panel (6), and takes out the spare key (103).

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