Automatic control system and method for automatically opening and closing emergency power supply interface

Abstract

The invention discloses an emergency power supply interface automatic control system and method capable of automatically opening and closing. A protective cover is arranged on an emergency power supply interface; the automatic control system comprises a protective cover opening and closing control system and an emergency power supply monitoring system; the protective cover opening and closing control system comprises a microcontroller module, a communication module and a power supply module; the microcontroller module is connected with a motor current sampling circuit module, an encoder, an inductive sensor and a motor driver; the emergency power supply monitoring system comprises a power supply voltage detection circuit module, a power supply current detection circuit module, a power supply electric quantity detection circuit module and a power supply state display module. The power supply voltage detection circuit module, the power supply current detection circuit module, the power supply electric quantity detection circuit module and the power supply state display module are all connected with the microcontroller module. The problems that an existing emergency power supply interface does not support safe automatic opening and closing in a communication mode under the unmanned participation condition, and unmanned automatic access of a mobile emergency power supply cannot be supported are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of distribution equipment, and particularly relates to an automatic control system and method for an emergency power supply interface that automatically opens and closes. Background Art

[0002] Emergency power supplies include various types, such as emergency generators / vehicles, mobile energy storage emergency power supplies, mobile energy storage emergency robots, etc. They are mainly uninterruptible power supply devices composed of power supplies, transformers, switches (electronic and mechanical), etc., which ensure the continuity of power supply and are applicable to loads where the allowable power supply interruption time is in milliseconds.

[0003] An emergency power supply interface is a commonly used interface device, usually applied to power supply equipment such as distribution boxes including low-voltage distribution networks, standardized street lamp transformer substations, box-type transformers, building distribution boxes, new energy vehicle distribution boxes, charging piles, etc., to enable them to have the ability to quickly connect to emergency power supplies.

[0004] Traditional emergency power supply access systems usually lack automation functions. Operators need to manually remove the protective cover and manually insert the emergency power supply connector into the emergency power supply interface socket. The manual process is time-consuming, and in case of emergencies, it increases the operation risk and delays the response time.

[0005] Current emergency power supply interfaces can be easily opened, lacking authorization control and opening / closing protection mechanisms. Existing systems do not support an automated and intelligent emergency power supply docking mechanism, and cannot achieve the automatic and rapid connection of mobile emergency power supplies in an unattended state to ensure that critical power consumption systems can obtain timely and effective power support in case of emergencies.

[0006] Chinese Patent CN118868105A discloses a rapid access system for backup power supplies in low-voltage distribution networks, and proposes a rapid access device with more than 2 emergency power supply interface boxes. The backup power supply input device controls the automatic switching of 2 low-voltage lines through 2 emergency power supply interfaces.

[0007] Chinese Patent CN113922493A discloses a self-switching backup power supply access system based on mobile energy storage and its control method. This system uses a mobile energy storage power supply system to replace the diesel generator set backup power supply in traditional power protection operations, and realizes full automation in power protection operations through automatic power switching and manual shutdown.

[0008] Chinese Patent CN113595223A discloses a power failure switching system for multiple transformer substations to be used as backup power supplies for each other. By switching the third circuit breaker and its controller in the switching control cabinet, the activation of the backup transformer substation is realized.

[0009] Chinese Patent CN110739685A discloses a method for live working on cable-type distribution networks, which still requires manual operations such as power taking, laying bypass cables, and connecting copper bars.

[0010] Chinese Patent CN220474994U discloses an improved emergency power supply interface, which designs a structure to prevent the protective component from shaking easily, so that no continuous force needs to be applied to the protective component during use, and the protection effect of the emergency power supply interface is improved.

[0011] Chinese Patent CN218632625U discloses an emergency power supply interface, which designs an emergency power supply interface with a rubber dust cover, making it not easy for adjacent positive and negative interfaces to be accidentally touched and short-circuited, and avoiding the problem that the wire is broken when the interface slides, resulting in the disconnection between the interface and the emergency power supply.

[0012] Some of the above patents complete the installation of the fixed emergency power supply during construction, and some improve the safety of the emergency power supply interface from the aspect of structural design. All of them require manual opening and closing of the interface, and do not support automatic opening and closing of the emergency power supply interface by communication means to meet the requirements of the future unmanned and intelligent mobile emergency power supply for unmanned and automatic access to the system.

[0013] To solve the above problems, a control method and system for an emergency power supply interface that supports communication and automatic opening and closing to meet the automatic access of unmanned mobile emergency power supplies are needed. Summary of the Invention

[0014] The technical problem to be solved by the present invention is to provide an automatic control system and method for an emergency power supply interface with automatic opening and closing in view of the deficiencies in the above-mentioned prior art, which solves the problems that the existing emergency power supply interfaces do not support safe automatic opening and closing without human participation by communication means and cannot support the unmanned automatic access of mobile emergency power supplies.

[0015] To solve the above technical problems, the technical solution adopted by the present invention is: an automatic control system for an emergency power supply interface with automatic opening and closing, wherein a protective cover for opening and closing the emergency power supply interface is provided on the emergency power supply interface; the automatic control system of the emergency power supply interface 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 connected to the microcontroller module and used for communicating 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 with a motor current sampling circuit module, an encoder for detecting the speed of the motor, and an induction sensor for detecting the insertion or removal of the emergency power supply connector of the mobile emergency power supply into or out of the emergency power supply interface socket; the output end of the microcontroller module is connected with a motor driver, and the motor is connected to the output end of the 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.

[0016] Preferably, the motor is arranged at the top of the emergency power supply interface. Its output shaft is connected with a lead screw through a coupling. Both ends of the lead screw are rotatably connected to the top of the emergency power supply interface through lead screw support seats. A protective cover connection block is sleeved in the middle section of the lead screw. The protective cover connection block is fixedly connected to the protective cover. When the motor rotates, it drives the lead screw to move forward or backward.

[0017] Preferably, the microcontroller module is an ARM microcontroller.

[0018] Preferably, the power supply status display module is a touch screen.

[0019] A method for an automatic control system to automatically control an automatically opening and closing emergency power supply interface, the method comprising the following steps: Step S1: When the emergency power supply interface needs to be used, the microcontroller module performs authorization authentication with the control end through the communication module. After the authorization authentication, the control end sends a control signal for opening the protective cover to the microcontroller module; Step S2: The microcontroller module analyzes the control signal, real-time collects the motor current signal detected by the motor current sampling circuit module and the motor position signal detected by the encoder, and controls the motor by using an improved FOC motor control algorithm. The motor is driven by the motor driver to act, driving the protective cover to open to a preset opening angle; Step S3: Insert the emergency power supply connector of the mobile emergency power supply into the emergency power supply interface socket 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 supply voltage detection circuit module real-time detects 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 real-time detects 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 real-time detects the remaining power of the mobile emergency power supply and outputs the detected power supply remaining power signal to the microcontroller module. 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; Step S5: After the emergency power supply is ended, remove the emergency power supply connector of the mobile emergency power supply; Step S6. After the microcontroller module receives the signal that the emergency power connector of the mobile emergency power source detected by the induction sensor is removed from the emergency power interface, it outputs a signal to the control end. The control end conducts authorization authentication with the microcontroller module through the communication module. After the authorization authentication, the control end sends a control signal for closing the protective cover to the microcontroller module; Step S7. The microcontroller module receives the control signal for closing the protective cover sent by the control end through the communication module, analyzes the control signal, and in real time collects the motor current signal detected by the motor current sampling circuit module and the motor position signal detected by the encoder, and controls the motor using an improved FOC motor control algorithm. The motor is driven by the motor driver to drive the protective cover to close.

[0020] Preferably, in step S1, the microcontroller module conducts authorization authentication with the control end through the communication module; in step S2, the microcontroller module receives the control signal for opening the protective cover sent by the control end through the communication module; and in step S7, the microcontroller module receives the control signal for closing the protective cover sent by the control end through the communication module. All of them use an improved SM2 encryption algorithm for data transmission. After the improved SM2 encryption algorithm initially encrypts the plaintext data using the domestic SM2 encryption algorithm to generate ciphertext data, a byte representing the type of the sending instruction is added to the head of the ciphertext data, and a random number is added to the tail to generate the finally sent ciphertext data. The plaintext data includes the generation time, the sending end identifier, the receiving end identifier, and the instruction information set in sequence.

[0021] Preferably, when the microcontroller module conducts authorization authentication with the control end in step S1, and when the control end conducts authorization authentication with the microcontroller module in step S6, the authentication information transmitted by the control end includes: the authorizer information, the authorization valid time, the system identifier, and the authorization authentication information. After the microcontroller module receives the instruction, the response result includes the authorization authentication success or failure information.

[0022] Preferably, the preset opening angle in step S3 is 180°.

[0023] Preferably, the specific process of the microcontroller module using the improved FOC motor control algorithm to control the motor in steps S3 and S8 is as follows: Step A1. The microcontroller module collects the motor current signal detected by the motor current sampling circuit module, and obtains Iα and Iβ by performing Clark transformation on the three-phase currents Ia, Ib, and Ic; Step A2. Through Clark transformation, the three-phase stator coordinate system is transformed into a two-phase stator rectangular coordinate system Iα, Iβ; Step A3: The microcontroller module collects the motor position signal P1 detected by the encoder, and uses a position estimation algorithm to calculate the motor position signal P2 based on the collected motor current signal. Calculate 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 fault-free, 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 a fault, and the motor position signal P2 calculated using the position estimation algorithm based on the collected motor current signal is determined as the final motor position signal P; Step A4: According to the motor position signal P, through Park transformation, transform the two-phase stator rectangular coordinate system to the two-phase rotor coordinate system Iq, Id; Step A5: Calculate the error values by respectively comparing Iq and Id with their set values Iq_ref and Id_ref; 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: Through SVPWM control of the three-phase inverter circuit, obtain Va, Vb, and Vc, and input them to the three phases of the motor.

[0024] Preferably, before step S6 and after step S5, there is also a step of predicting the available duration of the remaining power of the mobile emergency power supply using an LSTM neural network (Long Short Term Memory) according to the consumption situation, and scheduling to replace the new mobile emergency power supply according to the available duration.

[0025] The present invention has the following advantages compared with the prior art: 1. By adding a communication module, a microcontroller module, a motor, etc., the present invention enables the emergency power supply interface to have the capabilities 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 automatically falls and closes during operation, and avoids the safety hazards caused by accidentally opening the protective cover.

[0026] 2. The present invention realizes the rapid and automatic access of the mobile emergency power supply under the condition of no human intervention, provides a solution for the unmanned and automated support of the emergency power supply interface of the power supply equipment, is a key design for the future-oriented emergency power supply interface of the power supply equipment, and provides a guarantee for the intelligent monitoring and management of the emergency power supply of the power supply equipment.

[0027] 3. The present invention improves the FOC motor control algorithm, combines the advantages of the sensor-based FOC algorithm and the sensorless FOC algorithm, can avoid the phenomenon that the motor cannot be accurately controlled due to encoder failure, and ensures the reliability and stability of the system.

[0028] 4. The present invention is improved by the SM2 encryption algorithm and applied in data transmission to ensure the reliability of data transmission.

[0029] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic block diagram of the structure of the automatic control system for the emergency power supply interface of the present invention; Figure 2 It is a control flow chart of the automatic control of the emergency power supply interface of the present invention; Figure 3 It is a schematic structural diagram of the emergency power supply interface of the automatic control of the emergency power supply interface of the present invention; Figure 4 For Figure 3 right view structural schematic diagram.

[0031] Description of the reference numerals:

[0032] 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 power detection circuit module; 11. Power supply status display module; 12. Control terminal; 13. Inductive sensor; 14. Protective cover; 15. Emergency power supply interface; 16. Lead screw; 17. Lead screw support seat; 18. Protective cover connection block; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] As Figure 1 , Figure 3 shown, an automatic control system for an emergency power supply interface that can be automatically opened and closed, a protective cover 14 for opening and closing the emergency power supply interface is arranged on the emergency power supply interface 15; the automatic control system of the emergency power supply interface 15 includes a protective cover opening and closing control system and an emergency power supply monitoring system.

[0034] Among them, the protective cover opening and closing control system includes a microcontroller module 1, a communication module 2 connected to the microcontroller module 1 and used for communicating with the control terminal 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 with a motor current sampling circuit module 4, an encoder 5 for detecting the motor speed, and an induction sensor 13 for detecting the insertion or removal of the emergency power supply connector of the mobile emergency power supply into or out of the emergency power supply interface socket; the output end of the microcontroller module 1 is connected with a motor driver 6, and the motor 7 is connected to the output end of the motor driver 6.

[0035] 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, and 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.

[0036] In specific implementation, the microcontroller module 1 is an ARM microcontroller.

[0037] In specific implementation, the power supply status display module 11 is a touch screen.

[0038] 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.

[0039] In specific implementation, the induction sensor 13 is an infrared sensor. When the emergency power supply connector of the mobile emergency power supply is inserted into the emergency power supply interface socket, the light is blocked; when the emergency power supply connector of the mobile emergency power supply is pulled out of the emergency power supply interface socket, the light passes through, and the induction sensor 13 judges the insertion or removal state by detecting the change of light.

[0040] In specific implementation, see Figure 3 、 Figure 4 As shown, the motor 7 is arranged at the top of the emergency power supply interface 15, its output shaft is connected with a lead screw 16 through a coupling, both ends of the lead screw 16 are rotatably connected to the top of the emergency power supply interface 15 through lead screw support seats 17, a protective cover connection block 18 is sleeved in the middle section of the lead screw 16, and the protective cover connection block 18 is fixedly connected with the protective cover 14. When the motor rotates, it drives the lead screw to move forward or backward.

[0041] In specific implementation, see Figure 2 As shown, the method for the automatic control system to automatically control the automatically opening and closing emergency power supply interface includes the following steps: Step S1: When the emergency power supply interface needs to be used, the microcontroller module 1 conducts authorization authentication with the control terminal 12 through the communication module 2. After the authorization authentication, the control terminal 12 sends a control signal for opening the protective cover to the microcontroller module 1; Step S2: The microcontroller module 1 analyzes the control signal, real-time collects the motor current signal detected by the motor current sampling circuit module 4 and the motor position signal detected by the encoder 5, and controls the motor 7 using an improved FOC motor control algorithm. The motor 7 is driven to act through the motor driver 6, driving the protective cover to open to a preset opening angle; Step S3: Insert the emergency power supply connector of the mobile emergency power supply into the emergency power supply interface socket to complete the rapid access of the emergency power supply; In specific implementation, the emergency power supply connector of the mobile emergency power supply is manually inserted into the socket of the emergency power supply interface, or an automatic insertion method is designed to automatically insert the emergency power supply connector of the mobile emergency power supply into the socket of the emergency power supply interface; Step S4: During the power supply process of the mobile emergency power supply, the power voltage detection circuit module 8 conducts 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 conducts 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 battery detection circuit module 10 conducts real-time detection on the remaining power of the mobile emergency power supply and outputs the detected remaining power signal of the power supply 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 power of the mobile emergency power supply; Step S5: After the emergency power supply ends, remove the emergency power supply connector of the mobile emergency power supply; In specific implementation, the emergency power supply connector of the mobile emergency power supply is manually removed, or an automatic ejection method is designed to automatically remove the emergency power supply connector of the mobile emergency power supply; Step S6: After the microcontroller module 1 receives the signal that the emergency power supply connector of the mobile emergency power supply detected by the induction sensor 13 has been removed from the emergency power supply interface 15, it outputs a signal to the control terminal 12. The control terminal 12 conducts authorization authentication with the microcontroller module 1 through the communication module 2. After the authorization authentication, the control terminal 12 sends a control signal for closing the protective cover to the microcontroller module 1; 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, analyzes the control signal, real-time collects the motor current signal detected by the motor current sampling circuit module 4 and the motor position signal detected by the encoder 5, and controls the motor 7 using an improved FOC motor control algorithm. The motor 7 is driven to act through the motor driver 6, driving the protective cover to close.

[0042] In specific implementation, for the authorization and authentication between the microcontroller module 1 and the control terminal 12 in step S1, for the microcontroller module 1 to receive the control signal for opening the protective cover sent by the control terminal 12 in step S2, and for the microcontroller module 1 to receive the control signal for closing the protective cover sent by the control terminal 12 in step S7, the data transmission all adopts an improved SM2 encryption algorithm; after the domestic SM2 encryption algorithm is used to initially encrypt the plaintext data to generate ciphertext data in the improved SM2 encryption algorithm, a byte representing the type of the sending instruction is added to the head of the ciphertext data, and a random number is added to the tail to generate the finally sent ciphertext data; the plaintext data includes the generation time, the sender identifier, the receiver identifier, and the instruction information set in sequence.

[0043] In specific implementation, two bytes representing the type of the sending instruction are added to the head of the ciphertext data. The authorization and authentication instruction is represented as 00, the opening instruction is represented as 01, and the closing instruction is represented as 10.

[0044] In specific implementation, the number of digits of the random number added to the tail is 4 to 6 bits. The control terminal 12 also separately sends the random number to the microcontroller module 1 through the communication module 2 so that the microcontroller module 1 can decrypt the ciphertext data according to the random number.

[0045] In specific implementation, when the microcontroller module 1 and the control terminal 12 conduct authorization and authentication through the communication module 2 in step S1, and when the control terminal 12 and the microcontroller module 1 conduct authorization and authentication through the communication module 2 in step S6, the authentication information transmitted by the control terminal 12 includes: the authorizer information, the authorization valid time, the system identifier, and the authorization and authentication information. After receiving the instruction, the response result of the microcontroller module 1 includes the authorization and authentication success or failure information.

[0046] In specific implementation, the preset opening angle in step S3 is 180°.

[0047] In specific implementation, the protective cover can be in three positions: closed, opened 90°, and opened 180°.

[0048] In specific implementation, the specific process of the microcontroller module 1 controlling the motor 7 by using the improved FOC motor control algorithm in steps S3 and 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 performing Clark transformation on the three-phase currents Ia, Ib, and Ic; In specific implementation, the two circuit signals Ia and Ib of the motor are obtained through ADC sampling. Then, according to Kirchhoff's current law, the current value flowing into a node is equal to the current flowing out. According to the formula Ia + Ib + Ic = 0, Ic is calculated; the phase difference between Ia, Ib, and Ic is 120°; Step A2: Through Clark transformation, the three-phase stator coordinate system is transformed into a two-phase stator rectangular coordinate system Iα, Iβ; Step A3: The microcontroller module 1 collects the motor position signal P1 detected by the encoder 5, and uses a position estimation algorithm to calculate the motor position signal P2 based on the collected motor current signal. Calculate 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 fault-free, 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 using the position estimation algorithm based on the collected motor current signal is determined as the final motor position signal P; In specific implementation, the position estimation algorithm is implemented using a sliding mode observer SMO; In this way, the phenomenon that the motor cannot be accurately controlled due to the failure of the encoder 5 can be avoided; Step A4: According to the motor position signal P, through Park transformation, the two-phase stator rectangular coordinate system is transformed into a two-phase rotor coordinate system Iq, Id; Step A5: Calculate the error values by respectively calculating Iq and Id with their set values Iq_ref and Id_ref; 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: Through SVPWM control of the three-phase inverter circuit, Va, Vb, and Vc are obtained and input to the three phases of the motor.

[0049] In specific implementation, before step S6 after step S5, there is also a step of predicting the available duration of the remaining power of the mobile emergency power supply according to the consumption situation using an LSTM neural network (Long Short Term Memory, long short-term memory neural network), and scheduling to replace a new mobile emergency power supply according to the available duration.

[0050] In specific implementation, an indicator light for indicating the status of the emergency power supply and the remaining available duration of the emergency power supply is also connected to the output end of the microcontroller module 1.

[0051] Advantages compared with the prior art: The unmanned automatic opening and closing is realized through the communication module, with a response time < 10 seconds, greatly improving the efficiency compared with manual on-site operation; generally, the design of the lead screw and the lead screw support seat is adopted to solve the problem of the traditional protective cover falling and closing during operation.

[0052] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic control system for an emergency power supply interface that opens and closes automatically. A protective cover (14) for opening and closing the emergency power supply interface is provided on the emergency power supply interface (15), and is driven by a motor (7); characterized in that: The automatic control system of the emergency power supply interface (15) 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 (1), a communication module (2) connected to the microcontroller module (1) and used for communicating with the control terminal (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 with a motor current sampling circuit module (4), an encoder (5) for detecting the motor speed, and an induction sensor (13) for detecting the insertion or removal of the emergency power supply connector of the mobile emergency power supply into or out of the emergency power supply interface socket; the output end of the microcontroller module (1) is connected with a motor driver (6), and the motor (7) is connected to the output end of the motor driver (6); 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), and 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).

2. The automatic control system for an emergency power supply interface that automatically opens and closes according to claim 1, characterized in that: The motor (7) is arranged at the top of the emergency power supply interface (15), and its output shaft is connected with a lead screw (16) through a coupling. The two ends of the lead screw (16) are rotatably connected to the top of the emergency power supply interface (15) through lead screw support seats (17). A protective cover connection block (18) is sleeved in the middle section of the lead screw (16), and the protective cover connection block (18) is fixedly connected to the protective cover (14). When the motor (7) rotates, it drives the lead screw (16) to rotate forward or backward to realize the opening and closing of the protective cover (14).

3. The automatic control system for an emergency power supply interface that automatically opens and closes according to claim 1, characterized in that: The microcontroller module (1) is an ARM microcontroller.

4. An automatic control system for an emergency power supply interface that automatically opens and closes, as described in claim 1, characterized in that: The power supply status display module (11) is a touch screen.

5. A method for automatically controlling an emergency power supply interface that automatically opens and closes by using the automatic control system described in claim 1, characterized in that, The method includes the following steps: Step S1: When the emergency power supply interface needs to be used, the microcontroller module (1) conducts authorization authentication with the control terminal (12) through the communication module (2). After the 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, real-time collects the motor current signal detected by the motor current sampling circuit module (4) and the motor position signal detected by the encoder (5), and controls the motor (7) by using an improved FOC motor control algorithm. The motor (7) is driven to act through the motor driver (6) to drive the protective cover (14) to open to a preset opening angle; Step S3: Insert the emergency power supply connector of the mobile emergency power supply into the socket of the emergency power supply interface to complete the rapid access of the emergency power supply; Step S4: During the power supply of the mobile emergency power supply, the power voltage detection circuit module (8) detects the power supply voltage of the mobile emergency power supply in real time and outputs the detected power voltage signal to the microcontroller module (1). The power current detection circuit module (9) detects the power supply current of the mobile emergency power supply in real time and outputs the detected power current signal to the microcontroller module (1). The power battery detection circuit module (10) detects the remaining battery power of the mobile emergency power supply in real time and outputs the detected remaining battery power 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 battery power of the mobile emergency power supply; Step S5: After the emergency power supply is over, remove the emergency power connector of the mobile emergency power supply; Step S6: After the microcontroller module (1) receives the signal that the emergency power connector of the mobile emergency power supply detected by the induction sensor (13) is removed from the emergency power interface (15), it outputs a signal to the control terminal (12). The control terminal (12) conducts authorization authentication with the microcontroller module (1) through the communication module (2). After the authorization authentication, the control terminal (12) sends a control signal to close the protective cover to the microcontroller module (1); Step S7: The microcontroller module (1) receives the control signal to close the protective cover (14) sent by the control terminal (12) through the communication module (2), parses the control signal, and in real time collects the motor current signal detected by the motor current sampling circuit module (4) and the motor position signal detected by the encoder (5), and controls the motor (7) by using an improved FOC motor control algorithm. The motor (7) is driven to act through the motor driver (6) to drive the protective cover (14) to close.

6. The control method according to claim 5, wherein: In step S1, the microcontroller module (1) conducts authorization authentication with the control terminal (12) through the communication module (2). In step S2, the microcontroller module (1) receives the control signal to open the protective cover (14) sent by the control terminal (12) through the communication module (2), and in step S7, the microcontroller module (1) receives the control signal to close the protective cover (14) sent by the control terminal (12) through the communication module (2). All of them use an improved SM2 encryption algorithm for data transmission. The improved SM2 encryption algorithm initially encrypts the plaintext data by using the domestic SM2 encryption algorithm to generate ciphertext data, and then adds a byte representing the type of the sending instruction to the head of the ciphertext data and a random number to the tail to generate the finally sent ciphertext data. The plaintext data includes the generation time, sender identification, receiver identification and instruction information set in sequence.

7. The control method according to claim 5 or 6, characterized in that: When the microcontroller module (1) described in step S1 performs authorization authentication with the control terminal (12) through the communication module (2), 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 valid time, system identification, and authorization authentication information. After receiving the instruction, the response result of the microcontroller module (1) includes authorization authentication success or failure information.

8. The control method according to claim 5 or 6, characterized in that: The preset opening angle described in step S3 is 180°.

9. The control method according to claim 5 or 6, characterized in that: 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: Step A1: The microcontroller module (1) collects the motor current signals 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: Through Clark transformation, the three-phase stator coordinate system is transformed into the two-phase stator rectangular coordinate system Iα, Iβ. 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 signals, 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) 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 using the position estimation algorithm based on the collected motor current signals is determined as the final motor position signal P. Step A4: According to the motor position signal P, through Park transformation, the two-phase stator rectangular coordinate system is transformed into the two-phase rotor coordinate system Iq, Id. Step A5: Calculate the error values by respectively calculating the differences between Iq and Id and their set values Iq_ref and Id_ref. 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: Obtain Va, Vb, and Vc through SVPWM control of the three-phase inverter circuit and input them to the three phases of the motor.

10. The control method according to claim 5 or 6, characterized in that: Before step S6 after step S5, there is also a step of predicting the available duration of the remaining power of the mobile emergency power supply using an LSTM neural network according to the consumption situation, and scheduling to replace a new mobile emergency power supply according to the available duration.

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