Automatic opening and closing emergency power supply interface automatic control system and method

Abstract

The present invention discloses an automatic control system and method for an emergency power supply interface that automatically opens and closes. The emergency power supply interface is provided with a protective cover. The automatic control system includes a protective cover opening and closing control system and an emergency power supply monitoring system. The protective cover opening and closing control system includes a microcontroller module, a communication module, and a power supply module. The microcontroller module is connected to a motor current sampling circuit module, an encoder, an inductive sensor, and a motor driver. The emergency power supply monitoring system includes a power supply voltage detection circuit module, a power supply current detection circuit module, a power supply power detection circuit module, and a power supply status display module. The power supply voltage detection circuit module, the power supply current detection circuit module, the power supply power detection circuit module, and the power supply status display module are all connected to the microcontroller module. The present invention solves the problem that existing emergency power supply interfaces do not support safe automatic opening and closing in an unmanned environment by means of communication, and cannot support unmanned automatic access to mobile emergency power supplies.

Description

Technical Field

[0001] The present invention belongs to the technical field of power distribution equipment, and in particular relates to an automatic opening and closing emergency power interface automatic control system and method. Background Art

[0002] Emergency power supplies include various types, including emergency generators / vehicles, mobile energy storage emergency power supplies, mobile energy storage emergency robots, etc. They are uninterruptible power supply devices that ensure power supply continuity and are mainly composed of power supplies, transformers, switches (electronic and mechanical), etc. They are suitable for loads that allow power interruption time to be in milliseconds.

[0003] The emergency power interface is a commonly used interface device, usually used in power supply equipment including distribution boxes of low-voltage distribution networks, standardized street light substation distribution boxes, box-type transformers, building distribution boxes, new energy vehicle distribution boxes, charging piles, etc., to enable them to have the ability to quickly access emergency power.

[0004] Traditional emergency power access systems often lack automation, requiring operators to manually remove protective covers and insert the emergency power connector into the emergency power interface socket. This manual process is time-consuming, increasing operational risks and delaying response times in emergency situations.

[0005] The current emergency power supply interface can be easily opened, lacking authorization control and on / off protection mechanisms. The existing system does not support automated, intelligent emergency power supply docking mechanisms, and cannot automatically and quickly connect mobile emergency power supplies in unattended conditions to ensure that critical power systems receive timely and effective power support in emergencies.

[0006] Chinese patent CN118868105A discloses a rapid access system for backup power supply in a low-voltage distribution network, and proposes a rapid access device with two or more emergency power supply interface boxes. The backup power supply input device controls the automatic switching of two low-voltage lines through two emergency power supply interfaces.

[0007] Chinese patent CN113922493A discloses a self-operated backup power access system based on mobile energy storage and its control method. The system uses a mobile energy storage power supply system to replace the backup power supply of diesel generator sets in traditional power supply maintenance operations. By automatically switching the power supply and manually shutting down the operation, the system realizes fully automated operation in the power supply maintenance operation.

[0008] Chinese patent CN113595223A discloses a power failure switching system in which multiple substations serve as backup power sources for each other. The backup substation is activated by switching the third circuit breaker and its controller in the control cabinet.

[0009] Chinese patent CN110739685A discloses a method for non-stop operation of a cable-type distribution network, which still requires manual operations such as drawing power, laying bypass cables, and connecting copper busbars.

[0010] Chinese patent CN220474994U discloses an improved emergency power interface, which is designed to prevent the protective components from shaking easily. When in use, there is no need for personnel to continuously apply force to the protective components, thereby improving the protection effect of the emergency power interface.

[0011] Chinese patent CN218632625U discloses an emergency power supply interface, which is designed with a rubber dust cover to prevent adjacent positive and negative terminals from being accidentally short-circuited, and to avoid the problem of disconnection between the interface and the emergency power supply due to the wire being broken when the interface slides.

[0012] The above patents partially complete the installation of fixed emergency power supplies during construction, and partially improve the safety of emergency power supply interfaces from the structural design perspective. Both require manual opening and closing of interfaces, and do not support automatic opening and closing of emergency power supply interfaces through communication to meet the requirements of unmanned and automated access systems for future unmanned intelligent mobile emergency power supplies.

[0013] In order to solve the above problems, a method and system for controlling an emergency power supply interface that supports communication, automatic opening and closing, and automatic access to an unmanned mobile emergency power supply is needed. Summary of the Invention

[0014] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and provide an automatic control system and method for an emergency power supply interface that automatically opens and closes, thereby solving the problem that the existing emergency power supply interface does not support safe automatic opening and closing without human intervention by means of communication, and cannot support automatic access to mobile emergency power supplies without human intervention.

[0015] To solve the above technical problems, the present invention adopts the following technical solutions: an automatic control system for an emergency power interface that automatically opens and closes, wherein the emergency power interface is provided with a protective cover that is driven by a motor to open and close the emergency power interface; the automatic control system of the emergency power interface includes a protective cover opening and closing control system and an emergency power monitoring system;

[0016] The protective cover opening and closing control system includes a microcontroller module and a communication module connected to the microcontroller module and used to communicate with the control end, and a power supply module for supplying power to each power-consuming module in the system; the input end of the microcontroller module is connected to a motor current sampling circuit module and an encoder for detecting motor speed, and an inductive sensor for detecting whether the emergency power connector of the mobile emergency power supply is inserted into or removed from the emergency power interface socket; the output end of the microcontroller module is connected to a motor driver, and the motor is connected to the output end of the motor driver;

[0017] The emergency power supply monitoring system includes a power supply voltage detection circuit module, a power supply current detection circuit module, a power supply power detection circuit module and a power supply status display module, and the power supply voltage detection circuit module, the power supply current detection circuit module, the power supply power detection circuit module and the power supply status display module are all connected to the microcontroller module.

[0018] Preferably, the motor is arranged at the top of the emergency power interface, and its output shaft is connected to a screw rod through a coupling. The two ends of the screw rod are rotatably connected to the top of the emergency power interface through a screw rod support seat. The middle section of the screw rod is provided with a protective cover connecting block, and the protective cover connecting block is fixedly connected to the protective cover, and when the motor rotates, it drives the screw rod forward or backward.

[0019] Preferably, the microcontroller module is an ARM microcontroller.

[0020] Preferably, the power status display module is a touch screen.

[0021] A method for automatically controlling an emergency power supply interface that is automatically opened and closed by an automatic control system, the method comprising the following steps:

[0022] Step S1: When the emergency power interface needs to be used, the microcontroller module performs authorization authentication with the control terminal through the communication module. After authorization authentication, the control terminal sends a control signal for opening the protective cover to the microcontroller module;

[0023] Step S2: The microcontroller module analyzes the control signal, collects the motor current signal detected by the motor current sampling circuit module and the motor position signal detected by the encoder in real time, and uses an improved FOC motor control algorithm to control the motor, and drives the motor to move through the motor driver, driving the protective cover to open to a preset opening angle;

[0024] Step S3: Insert the emergency power connector of the mobile emergency power supply into the emergency power interface socket to complete the quick access of the emergency power supply;

[0025] Step S4, during the power supply process of the mobile emergency power supply, the power supply voltage detection circuit module performs real-time detection on the power supply voltage of the mobile emergency power supply and outputs the detected power supply voltage signal to the microcontroller module, the power supply current detection circuit module performs real-time detection on the power supply current of the mobile emergency power supply and outputs the detected power supply current signal to the microcontroller module, the power supply power detection circuit module performs real-time detection on the remaining power of the mobile emergency power supply and outputs the detected power remaining power signal to the microcontroller module, and the microcontroller module controls the power supply status display module to display the power supply voltage, power supply current and remaining power of the mobile emergency power supply;

[0026] Step S5: After the emergency power supply is completed, remove the emergency power connector of the mobile emergency power supply;

[0027] Step S6: After receiving the signal detected by the induction sensor that the emergency power connector of the mobile emergency power supply is removed from the emergency power interface, the microcontroller module outputs a signal to the control end. The control end performs authorization authentication with the microcontroller module through the communication module. After authorization authentication, the control end sends a control signal to the microcontroller module to close the protective cover.

[0028] In step S7, the microcontroller module receives the control signal for closing the protective cover sent by the control end through the communication module, parses the control signal, collects the motor current signal detected by the motor current sampling circuit module and the motor position signal detected by the encoder in real time, and uses the improved FOC motor control algorithm to control the motor, drives the motor to move through the motor driver, and drives the protective cover to close.

[0029] Preferably, the microcontroller module in step S1 performs authorization authentication with the control end through the communication module; the microcontroller module in step S2 receives the control signal for opening the protective cover sent by the control end through the communication module; and the microcontroller module in step S7 receives the control signal for closing the protective cover sent by the control end through the communication module; all use an improved SM2 encryption algorithm for data transmission; the improved SM2 encryption algorithm uses the domestic SM2 encryption algorithm to preliminarily encrypt the plaintext data to generate ciphertext data, and then adds a byte indicating the type of sending instruction to the first end of the ciphertext data, and adds a random number to the tail end to generate the final ciphertext data to be sent; the plaintext data includes the generation time, sending end identifier, authorized receiving end identifier and instruction information set in sequence.

[0030] Preferably, when the microcontroller module in step S1 performs authorization authentication with the control end through the communication module, and when the control end performs authorization authentication with the microcontroller module through the communication module in step S6, the authentication information transmitted by the control end includes: authorizer information, authorization validity period, system identification and authorization authentication information. After the microcontroller module receives the instruction, the response result includes authorization authentication success or failure information.

[0031] Preferably, the preset opening angle in step S3 is 180°.

[0032] Preferably, the specific process of the microcontroller module controlling the motor using the improved FOC motor control algorithm in step S3 and step S8 is as follows:

[0033] Step A1: The microcontroller module collects the motor current signal detected by the motor current sampling circuit module, and obtains Iα and Iβ by Clark transformation of the three-phase currents Ia, Ib, and Ic;

[0034] Step A2: transform the three-phase stator coordinate system into the two-phase stator rectangular coordinate system Iα, Iβ through Clark transformation;

[0035] Step A3: The microcontroller module collects the motor position signal P1 detected by the encoder, and uses the position estimation algorithm to calculate the motor position signal P2 based on the collected motor current signal, and calculates the error between P1 and P2. When the error between P1 and P2 is less than or equal to the preset error threshold, it is determined that the encoder is not faulty, and the motor position signal P1 detected by the encoder is determined as the final motor position signal P; when the error between P1 and P2 is greater than the preset error threshold, it is determined that the encoder may have failed, and the motor position signal P2 calculated based on the collected motor current signal using the position estimation algorithm is determined as the final motor position signal P;

[0036] Step A4: transform the two-phase stator rectangular coordinate system into the two-phase rotor coordinate system Iq, Id through Park transformation according to the motor position signal P;

[0037] Step A5: Calculate the error between Iq and Id and their set values Iq_ref and Id_ref respectively;

[0038] Step A6: Substitute the q-axis current error value into the q-axis current PID loop to calculate Vq, and substitute the d-axis current error value into the d-axis current PID loop to calculate Vd;

[0039] Step A5: Perform inverse Park transformation on Vq and Vd to obtain Vα and Vβ;

[0040] Step A6: The three-phase inverter circuit is controlled by SVPWM to obtain Va, Vb, and Vc, which are input to the three phases of the motor.

[0041] Preferably, after step S5 and before step S6, the method also includes a step of using an LSTM neural network (Long Short Term Memory) to predict the available time of the remaining power of the mobile emergency power supply based on the consumption situation, and scheduling the replacement of the mobile emergency power supply with a new one based on the available time.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] 1. The present invention adds a communication module, a microcontroller module, a motor, etc., so that the emergency power interface has the ability of authorization authentication, communication, and automatic opening and closing of the protective cover. At the same time, it also avoids the problem that the traditional protective cover often falls and closes automatically during operation, avoiding the safety hazards caused by accidentally opening the protective cover.

[0044] 2. The present invention enables rapid and automatic access to a mobile emergency power supply without human intervention, providing a solution for unmanned and automated emergency power supply interfaces of power supply equipment. This is a key design for future-oriented emergency power supply interfaces of power supply equipment, and provides a guarantee for intelligent monitoring and management of emergency power supplies of power supply equipment.

[0045] 3. The present invention improves the FOC motor control algorithm and combines the advantages of the sensor FOC algorithm and the sensorless FOC algorithm, which can avoid the phenomenon of being unable to accurately control the motor due to encoder failure and ensure the reliability and stability of the system.

[0046] 4. The present invention is improved by the SM2 encryption algorithm and applied in data transmission to ensure the reliability of data transmission.

[0047] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic block diagram of the structure of the emergency power interface automatic control system of the present invention;

[0049] Figure 2 This is a control flow chart for the automatic control of the emergency power supply interface of the present invention;

[0050] Figure 3 This is a schematic diagram of the structure of the emergency power interface automatically controlled by the emergency power interface of the present invention;

[0051] Figure 4 for Figure 3 Schematic diagram of the right view structure.

[0052] Description of the accompanying drawings:

[0053] 1. Microcontroller module; 2. Communication module; 3. Power supply module; 4. Motor current sampling circuit module; 5. Encoder; 6. Motor driver; 7. Motor; 8. Power supply voltage detection circuit module; 9. Power supply current detection circuit module; 10. Power supply quantity detection circuit module; 11. Power supply status display module; 12. Control terminal; 13. Inductive sensor; 14. Protective cover; 15. Emergency power supply interface; 16. Screw; 17. Screw support base; 18. Protective cover connection block; DETAILED DESCRIPTION

[0054] like Figure 1 、 Figure 3As shown, an automatic control system for an emergency power interface that opens and closes automatically is provided on the emergency power interface 15. A protective cover 14 that is driven by a motor 7 to open and close the emergency power interface is provided. The automatic control system of the emergency power interface 15 includes a protective cover opening and closing control system and an emergency power monitoring system.

[0055] Among them, the protective cover opening and closing control system includes a microcontroller module 1 and a communication module 2 connected to the microcontroller module 1 and used to communicate with the control end 12, and a power supply module 3 for supplying power to each power-consuming module in the system; the input end of the microcontroller module 1 is connected to a motor current sampling circuit module 4 and an encoder 5 for detecting the motor speed, as well as an inductive sensor 13 for detecting whether the emergency power connector of the mobile emergency power supply is inserted into or removed from the emergency power interface socket; the output end of the microcontroller module 1 is connected to a motor driver 6, and the motor 7 is connected to the output end of the motor driver 6.

[0056] The emergency power supply monitoring system includes a power supply voltage detection circuit module 8, a power supply current detection circuit module 9, a power supply power detection circuit module 10 and a power supply status display module 11. The power supply voltage detection circuit module 8, the power supply current detection circuit module 9, the power supply power detection circuit module 10 and the power supply status display module 11 are all connected to the microcontroller module 1.

[0057] During specific implementation, the microcontroller module 1 is an ARM microcontroller.

[0058] In a specific implementation, the power status display module 11 is a touch screen.

[0059] In specific implementation, the control terminal 12 can be a cloud service or a mobile emergency power supply device or a mobile application. The communication module 2 supports multiple communication methods such as 4G / 5G, WIFI, LORA, Zigbee, Bluetooth, NFC, etc.

[0060] In specific implementation, the sensing sensor 13 is an infrared sensor. When the emergency power connector of the mobile emergency power supply is inserted into the emergency power interface socket, the light is blocked; when the emergency power connector of the mobile emergency power supply is unplugged from the emergency power interface socket, the light passes through, and the sensing sensor 13 determines the insertion or removal status by detecting the change in light.

[0061] For specific implementation, see Figure 3 、 Figure 4As shown, the motor 7 is arranged at the top of the emergency power interface 15, and its output shaft is connected to the screw 16 through a coupling. The two ends of the screw 16 are rotatably connected to the top of the emergency power interface 15 through a screw support seat 17. The middle section of the screw 16 is provided with a protective cover connecting block 18, and the protective cover connecting block 18 is fixedly connected to the protective cover 14. When the motor rotates, it drives the screw forward or backward.

[0062] For specific implementation, see Figure 2 As shown, the method for the automatic control system to automatically control the automatically opened and closed emergency power supply interface includes the following steps:

[0063] Step S1: When the emergency power interface needs to be used, the microcontroller module 1 performs authorization authentication with the control terminal 12 through the communication module 2. After authorization authentication, the control terminal 12 sends a control signal for opening the protective cover to the microcontroller module 1;

[0064] In step S2, the microcontroller module 1 analyzes the control signal, collects the motor current signal detected by the motor current sampling circuit module 4 and the motor position signal detected by the encoder 5 in real time, and controls the motor 7 using an improved FOC motor control algorithm. The motor driver 6 drives the motor 7 to move, thereby driving the protective cover to open to a preset opening angle.

[0065] Step S3: Insert the emergency power connector of the mobile emergency power supply into the emergency power interface socket to complete the quick access of the emergency power supply;

[0066] During specific implementation, the emergency power connector of the mobile emergency power supply is manually inserted into the socket of the emergency power interface, or an automatic insertion method is designed to automatically insert the emergency power connector of the mobile emergency power supply into the socket of the emergency power interface;

[0067] Step S4, during the power supply process of the mobile emergency power supply, the power supply voltage detection circuit module 8 performs real-time detection on the power supply voltage of the mobile emergency power supply and outputs the detected power supply voltage signal to the microcontroller module 1, the power supply current detection circuit module 9 performs real-time detection on the power supply current of the mobile emergency power supply and outputs the detected power supply current signal to the microcontroller module 1, the power supply power detection circuit module 10 performs real-time detection on the remaining power of the mobile emergency power supply and outputs the detected power remaining power signal to the microcontroller module 1, and the microcontroller module 1 controls the power status display module 11 to display the power supply voltage, power supply current and remaining power of the mobile emergency power supply;

[0068] Step S5: After the emergency power supply is completed, remove the emergency power connector of the mobile emergency power supply;

[0069] During specific implementation, the emergency power connector of the mobile emergency power supply is manually removed, or an automatic ejection method is designed to automatically remove the emergency power connector of the mobile emergency power supply;

[0070] Step S6: After receiving the signal detected by the induction sensor 13 that the emergency power connector of the mobile emergency power supply is removed from the emergency power interface 15, the microcontroller module 1 outputs a signal to the control terminal 12. The control terminal 12 performs authorization authentication with the microcontroller module 1 through the communication module 2. After authorization authentication, the control terminal 12 sends a control signal to the microcontroller module 1 to close the protective cover;

[0071] In step S7, the microcontroller module 1 receives the control signal for closing the protective cover sent by the control terminal 12 through the communication module 2, parses the control signal, collects the motor current signal detected by the motor current sampling circuit module 4 and the motor position signal detected by the encoder 5 in real time, and uses the improved FOC motor control algorithm to control the motor 7, drives the motor 7 to move through the motor driver 6, and drives the protective cover to close.

[0072] During specific implementation, the microcontroller module 1 in step S1 performs authorization authentication with the control end 12 through the communication module 2, the microcontroller module 1 in step S2 receives the control signal for opening the protective cover sent by the control end 12 through the communication module 2, and the microcontroller module 1 in step S7 receives the control signal for closing the protective cover sent by the control end 12 through the communication module 2, all of which use the improved SM2 encryption algorithm for data transmission; the improved SM2 encryption algorithm uses the domestic SM2 encryption algorithm to preliminarily encrypt the plaintext data to generate ciphertext data, and then adds a byte indicating the type of sending instruction to the head end of the ciphertext data, and adds a random number to the tail end to generate the final ciphertext data to be sent; the plaintext data includes the generation time, sending end identifier, authorized receiving end identifier and instruction information set in sequence.

[0073] In specific implementation, two bytes indicating the type of instruction to be sent are added to the head of the ciphertext data, where the authorization and authentication instruction is represented as 00, the opening instruction is represented as 01, and the closing instruction is represented as 10.

[0074] In specific implementation, the number of bits of the random number added to the tail is 4 to 6. The control terminal 12 also sends the random number to the microcontroller module 1 through the communication module 2, so that the microcontroller module 1 decrypts the ciphertext data according to the random number.

[0075] During specific implementation, when the microcontroller module 1 performs authorization authentication with the control end 12 through the communication module 2 in step S1, and when the control end 12 performs authorization authentication with the microcontroller module 1 through the communication module 2 in step S6, the authentication information transmitted by the control end 12 includes: authorizer information, authorization validity period, system identification and authorization authentication information. After the microcontroller module 1 receives the instruction, the response result includes authorization authentication success or failure information.

[0076] During specific implementation, the preset opening angle in step S3 is 180°.

[0077] In specific implementation, the protective cover can be in three positions: closed, opened 90°, and opened 180°.

[0078] In specific implementation, the specific process of the microcontroller module 1 using the improved FOC motor control algorithm to control the motor 7 in step S3 and step S8 is as follows:

[0079] Step A1: The microcontroller module 1 collects the motor current signal detected by the motor current sampling circuit module 4, and obtains Iα and Iβ by Clark transformation of the three-phase currents Ia, Ib, and Ic;

[0080] In specific implementation, the motor's Ia and Ib circuit signals are obtained through ADC sampling. Then, according to Kirchhoff's current law, the current flowing into and out of the same node is equal. Ic is calculated according to the formula Ia + Ib + Ic = 0. The phase difference between Ia, Ib, and Ic is 120 degrees.

[0081] Step A2: transform the three-phase stator coordinate system into the two-phase stator rectangular coordinate system Iα, Iβ through Clark transformation;

[0082] Step A3: The microcontroller module 1 collects the motor position signal P1 detected by the encoder 5, and uses the position estimation algorithm to calculate the motor position signal P2 based on the collected motor current signal, and calculates the error between P1 and P2. When the error between P1 and P2 is less than or equal to the preset error threshold, it is determined that the encoder 5 is not faulty, and the motor position signal P1 detected by the encoder 5 is determined as the final motor position signal P; when the error between P1 and P2 is greater than the preset error threshold, it is determined that the encoder 5 may have a fault, and the motor position signal P2 calculated based on the collected motor current signal using the position estimation algorithm is determined as the final motor position signal P;

[0083] In specific implementation, the position estimation algorithm is implemented using sliding mode observation SMO;

[0084] In this way, it is possible to avoid the inability to accurately control the motor due to a fault in the encoder 5;

[0085] Step A4: transform the two-phase stator rectangular coordinate system into the two-phase rotor coordinate system Iq, Id through Park transformation according to the motor position signal P;

[0086] Step A5: Calculate the error between Iq and Id and their set values Iq_ref and Id_ref respectively;

[0087] Step A6: Substitute the q-axis current error value into the q-axis current PID loop to calculate Vq, and substitute the d-axis current error value into the d-axis current PID loop to calculate Vd;

[0088] Step A5: Perform inverse Park transform on Vq and Vd to obtain Vα and Vβ;

[0089] Step A6: The three-phase inverter circuit is controlled by SVPWM to obtain Va, Vb, and Vc, which are input to the three phases of the motor.

[0090] In specific implementation, after step S5 and before step S6, it also includes a step of using an LSTM neural network (Long Short Term Memory) to predict the available time of the remaining power of the mobile emergency power supply based on the consumption situation, and scheduling the replacement of a new mobile emergency power supply based on the available time.

[0091] In a specific implementation, the output end of the microcontroller module 1 is further connected to an indicator light for indicating the state of the emergency power supply and the remaining available time of the emergency power supply.

[0092] Advantages compared with existing technologies:

[0093] Unmanned automatic opening and closing is achieved through the communication module, with a response time of less than 10 seconds, which greatly improves the efficiency compared with manual on-site operation; the general design of the screw and screw support seat solves the problem of traditional protective covers falling and closing during operation.

[0094] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An automatic control method for an emergency power interface that automatically opens and closes, wherein the emergency power interface (15) is provided with a protective cover (14) that is driven by a motor (7) to open and close the emergency power interface; the automatic control system of the emergency power interface (15) includes a protective cover opening and closing control system and an emergency power monitoring system; the protective cover opening and closing control system includes a microcontroller module (1) and a communication module (2) connected to the microcontroller module (1) and used to communicate with a control terminal (12), and a power supply module (3) for supplying power to each power module in the system; the input terminal of the microcontroller module (1) is connected to a motor current sampling circuit module (4) and an encoder (5) for detecting the motor speed, so as to and an inductive sensor (13) for detecting whether an emergency power connector of a mobile emergency power supply is inserted into or removed from an emergency power interface socket; the output end of the microcontroller module (1) is connected to a motor driver (6), and the motor (7) is connected to the output end of the motor driver (6); the emergency power monitoring system comprises a power voltage detection circuit module (8), a power current detection circuit module (9), a power quantity detection circuit module (10) and a power status display module (11), and the power voltage detection circuit module (8), the power current detection circuit module (9), the power quantity detection circuit module (10) and the power status display module (11) are all connected to the microcontroller module (1); characterized in that, The automatic control method comprises the following steps: Step S1: When the emergency power interface needs to be used, the microcontroller module (1) performs authorization authentication with the control terminal (12) through the communication module (2). After authorization authentication, the control terminal (12) sends a control signal for opening the protective cover (14) to the microcontroller module (1); Step S2: The microcontroller module (1) analyzes the control signal, collects the motor current signal detected by the motor current sampling circuit module (4) and the motor position signal detected by the encoder (5) in real time, and controls the motor (7) using an improved FOC motor control algorithm, and drives the motor (7) to move through the motor driver (6), thereby driving the protective cover (14) to open to a preset opening angle; Step S3: insert the emergency power connector of the mobile emergency power supply into the socket of the emergency power interface to complete the rapid access of the emergency power supply; Step S4: During the power supply process of the mobile emergency power supply, the power voltage detection circuit module (8) performs real-time detection on the power supply voltage of the mobile emergency power supply and outputs the detected power voltage signal to the microcontroller module (1); the power current detection circuit module (9) performs real-time detection on the power supply current of the mobile emergency power supply and outputs the detected power current signal to the microcontroller module (1); the power quantity detection circuit module (10) performs real-time detection on the remaining quantity of the mobile emergency power supply and outputs the detected remaining quantity signal to the microcontroller module (1); the microcontroller module (1) controls the power status display module (11) to display the power supply voltage, power supply current and remaining quantity of the mobile emergency power supply; Step S5: After the emergency power supply is completed, remove the emergency power connector of the mobile emergency power supply; Step S6: After receiving the signal from the induction sensor (13) indicating that the emergency power connector of the mobile emergency power supply is removed from the emergency power interface (15), the microcontroller module (1) outputs a signal to the control terminal (12). The control terminal (12) performs authorization authentication with the microcontroller module (1) through the communication module (2). After authorization authentication, the control terminal (12) sends a control signal to the microcontroller module (1) to close the protective cover. In step S7, the microcontroller module (1) receives a control signal for closing the protective cover (14) sent by the control terminal (12) through the communication module (2), analyzes the control signal, collects the motor current signal detected by the motor current sampling circuit module (4) and the motor position signal detected by the encoder (5) in real time, and controls the motor (7) using an improved FOC motor control algorithm, drives the motor (7) to move through the motor driver (6), and drives the protective cover (14) to close.

2. The method for automatically controlling an emergency power supply interface that automatically opens and closes according to claim 1, characterized in that: The motor (7) is arranged on the top of the emergency power interface (15), and its output shaft is connected to a screw rod (16) through a coupling. The two ends of the screw rod (16) are rotatably connected to the top of the emergency power interface (15) through a screw rod support seat (17). The middle section of the screw rod (16) is sleeved with a protective cover connecting block (18). The protective cover connecting block (18) is fixedly connected to the protective cover (14). When the motor (7) rotates, it drives the screw rod (16) to rotate forward or reverse, thereby realizing the opening and closing of the protective cover (14).

3. The automatic control method for an automatic opening and closing emergency power interface according to claim 1, characterized in that: The microcontroller module (1) is an ARM microcontroller.

4. The method for automatically controlling an emergency power supply interface that automatically opens and closes according to claim 1, characterized in that: The power status display module (11) is a touch screen.

5. The automatic control method for an automatic opening and closing emergency power interface according to claim 1, characterized in that: In step S1, the microcontroller module (1) performs authorization authentication with the control terminal (12) through the communication module (2); in step S2, the microcontroller module (1) receives a control signal for opening the protective cover (14) sent by the control terminal (12) through the communication module (2); and in step S7, the microcontroller module (1) receives a control signal for closing the protective cover (14) sent by the control terminal (12) through the communication module (2), both of which use an improved SM2 encryption algorithm for data transmission; the improved SM2 encryption algorithm uses a domestic SM2 encryption algorithm to preliminarily encrypt plaintext data to generate ciphertext data, then adds a byte indicating the type of sending instruction to the head end of the ciphertext data and adds a random number to the tail end to generate the ciphertext data that is finally sent; the plaintext data includes a generation time, a sending terminal identifier, a receiving terminal identifier, and instruction information that are set in sequence.

6. A method for automatically controlling an emergency power supply interface that automatically opens and closes according to claim 1 or 5, characterized in that: When the microcontroller module (1) performs authorization authentication with the control terminal (12) through the communication module (2) in step S1, and when the control terminal (12) performs authorization authentication with the microcontroller module (1) through the communication module (2) in step S6, the authentication information transmitted by the control terminal (12) includes: authorizer information, authorization validity period, system identification and authorization authentication information. After the microcontroller module (1) receives the instruction, the response result includes authorization authentication success or failure information.

7. The automatic control method for automatically opening and closing an emergency power supply interface according to claim 1 or 5, characterized in that: The preset opening angle in step S3 is 180°.

8. The automatic control method for automatically opening and closing an emergency power supply interface according to claim 1 or 5, characterized in that: The specific process of the microcontroller module (1) controlling the motor (7) using the improved FOC motor control algorithm in step S3 and step S8 is as follows: Step A1: The microcontroller module (1) collects the motor current signal detected by the motor current sampling circuit module (4), and obtains Iα and Iβ by Clark transformation of the three-phase currents Ia, Ib, and Ic; Step A2: transform the three-phase stator coordinate system into the two-phase stator rectangular coordinate system Iα, Iβ through Clark transformation; Step A3, the microcontroller module (1) collects the motor position signal P1 detected by the encoder (5), and uses the position estimation algorithm to calculate the motor position signal P2 based on the collected motor current signal, calculates the error between P1 and P2, and when the error between P1 and P2 is less than or equal to a preset error threshold, it is determined that the encoder (5) has no fault, and the motor position signal P1 detected by the encoder (5) is determined as the final motor position signal P; when the error between P1 and P2 is greater than the preset error threshold, it is determined that the encoder (5) may have a fault, and the motor position signal S2 calculated based on the collected motor current signal using the position estimation algorithm is determined as the final motor position signal P; Step A4: transform the two-phase stator rectangular coordinate system into the two-phase rotor coordinate system Iq, Id through Park transformation according to the motor position signal P; Step A5: Calculate the error between Iq and Id and their set values Iq_ref and Id_ref respectively; Step A6: Substitute the q-axis current error value into the q-axis current PID loop to calculate Vq, and substitute the d-axis current error value into the d-axis current PID loop to calculate Vd; Step A5: Perform inverse Park transformation on Vq and Vd to obtain Vα and Vβ; Step A6: The three-phase inverter circuit is controlled by SVPWM to obtain Va, Vb, and Vc, which are input to the three phases of the motor.

9. The automatic control method for automatically opening and closing an emergency power supply interface according to claim 1 or 5, characterized in that: After step S5 and before step S6, the method also includes a step of using an LSTM neural network to predict the available time of the remaining power of the mobile emergency power supply based on the consumption situation, and scheduling the replacement of a new mobile emergency power supply based on the available time.

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