Multifunctional power conversion cabinet control system capable of automatically switching master machine and slave machine and power conversion cabinet of multifunctional power conversion cabinet control system

Abstract

The invention discloses a multifunctional power conversion cabinet control system capable of automatically switching a master machine and a slave machine and a power conversion cabinet thereof, and belongs to the technical field of power conversion cabinets. Comprising a group of hosts and at least two groups of slaves, the hosts and the slaves are provided with dial codes, have a compatible function, are coded according to serial numbers and are in communication connection with each other through RS485, and the input end of each group of slaves is connected with the output end of a charger. The output end of each charger independently controls the charging process of one battery bin, a pressure sensor is installed at the bottom of each battery bin and is in communication connection with the charger, the battery bins are used for containing batteries to be charged, Hall sensors are installed on the rear sides of the batteries, and the pressure sensors and the Hall sensors are matched with each other to obtain whether the batteries are in place or not. And when the battery is in place, the battery is charged, and otherwise, charging is stopped. According to the invention, the influence of the host fault on the battery charging and swapping cabinet system is effectively reduced, and the service continuity can be ensured to be kept even under unfavorable conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of power exchange cabinets, and in particular relates to a multifunctional power exchange cabinet control system with automatic switching between master and slave machines and a power exchange cabinet thereof. Background Art

[0002] At present, most charging and swapping cabinets are under the joint control of the host and slave machines. By controlling the adapted charger group, the batteries in the cabinet are detected and charged, and the battery replacement needs of users are met at the same time. However, in the prior art, once the host fails, the entire battery swapping cabinet may be completely paralyzed, resulting in the user's inability to replace the battery normally, thereby affecting the user's experience and the operating company's revenue. In order to solve the above problems, a real-time monitoring function is usually used to automatically detect the status of the host. When the host is abnormal, an alarm is immediately issued to allow maintenance personnel to repair the host failure. However, the impact of the host failure on the charging and swapping cabinet system cannot be immediately eliminated. In response to the above problems, the present application proposes a multifunctional battery swapping cabinet control system and a battery swapping cabinet with automatic switching between master and slave machines. Summary of the invention

[0003] Purpose of the invention: To provide a multifunctional power-swap cabinet control system with automatic switching between master and slave machines and a power-swap cabinet thereof, which solves the above-mentioned problems existing in the prior art.

[0004] Technical solution: A multifunctional battery exchange cabinet control system with automatic switching between master and slave, comprising a group of host and at least two groups of slaves, the host and the slave both have their own dial codes, the host and the slave have simultaneous compatibility function, the host and the slave are encoded according to serial numbers, the host and the slave are connected through CAN bus communication, the input end of each group of slaves is connected to the output end of the charger respectively, the output end of each charger independently controls the charging process of a battery compartment, a pressure sensor is installed at the bottom of each group of battery compartments, the pressure sensor is communicatively connected to the charger, the battery compartment is used to place batteries to be charged, and a Hall sensor is installed on the rear side of the battery compartment, the pressure sensor and the Hall sensor cooperate with each other to obtain whether the battery is in place, when the battery is in place, the battery is charged, otherwise, the charging is exited.

[0005] Preferably, the battery presence detection process is as follows: First, the magnetic field is detected by the Hall sensor. After the Hall sensor detects the magnetic field, the pressure sensor is used to detect the pressure. After the magnetic field and pressure are detected at the same time, the battery voltage is fed back through the charger. When the fed-back battery voltage is within the normal range, the battery is charged, otherwise, the charging is exited.

[0006] Preferably, when the signal of the Hall sensor and the pressure sensor cannot be obtained, a one-minute communication detection is entered, that is, when the signal of the Hall sensor and the pressure sensor cannot be obtained, the charger charges the Hall sensor and the pressure sensor with a current of 1.0A for 1 minute. After completing 1 minute of charging, the signal of the Hall sensor and the pressure sensor is obtained again. When the signal of the Hall sensor and the pressure sensor is not obtained, it is determined that the battery is not an ordinary battery, and the battery is blindly charged.

[0007] Preferably, after obtaining the signals of the Hall sensor and the pressure sensor, the battery charging process is as follows: The current battery voltage and power are obtained through the charger. When the battery voltage is less than or equal to 45V, or the power is less than or equal to 10%, the battery is pre-charged with a current of 54.2V / 2.5A. When the battery voltage is greater than 45V or the battery power is greater than 10%, the battery is charged with a constant current of 7A. When the battery voltage is greater than or equal to 52V or the power is greater than or equal to 85%, the battery is charged at a constant voltage of 54.2V until the current is less than 300mA. The battery is considered fully charged and charging of the battery is stopped.

[0008] Preferably, the battery charging process is as follows: When the battery voltage is less than or equal to 45V, the battery is pre-charged with a current of 54.2V / 2.5A; When the battery voltage is greater than 45V, the battery is charged with a constant current of 7A; When the battery voltage is greater than or equal to 52V, the battery is charged at a constant voltage of 54.2V until the current is less than 300mA. The battery is considered fully charged and charging of the battery is stopped.

[0009] Preferably, the host and the slave are numbered as follows: host 0 , slave 1 , slave 2 , ..., slave n , wherein the switching process between the host and the slave is as follows: When the mainboard CAN message communication is normal, it is marked as the host online; when the mainboard CAN message is lost, it is marked as the host offline. Then, according to the slave number, the code is dialed, and the slave calls the host program at the same time as the original slave program is called, so that the slave becomes the host and is back online. At the same time, the slave is still reused as a slave.

[0010] A multifunctional power exchange cabinet with automatic switching between master and slave machines comprises a shell, a plurality of charging compartments are installed in the shell, a slave machine is installed in each group of the charging compartments, a Hall sensor and a pressure sensor are installed in the charging compartments, the charging compartments are used to place batteries to be charged, a magnetizer is installed on the back of the battery, a host machine is installed in the shell, the host machine is connected to each group of the slave machines by CAN bus communication, the slave machines are connected to the Hall sensors and pressure sensors in the charging compartments, and the slave machines are connected to the batteries by RS485 communication.

[0011] Beneficial effect: The present invention relates to a multifunctional battery swap cabinet control system with automatic switching between master and slave machines and a battery swap cabinet thereof. The master and slave machines adopt the same hardware, so that when a failure occurs in the master machine, the slave machine can call the master program to ensure the normal use of the system. The slave machine also calls the slave program at the same time and is used as a slave machine, which can not only ensure the normal operation of the system, but also obtain the charging status of the battery in the battery compartment, effectively reducing the impact of the host machine failure on the charging and swap cabinet system, and ensuring the continuity of service even under adverse circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the electrical schematic diagram of the present invention; Figure 2 The battery detection flow chart of the present invention; Figure 3 It is a flow chart of the charging strategy of the present invention. DETAILED DESCRIPTION

[0013] like Figures 1 to 3 As shown, the present invention provides a technical solution: a multifunctional power exchange cabinet control system with automatic switching between master and slave, comprising a group of master and at least two groups of slaves, the master and the slave both have their own dial codes, the master and the slave have simultaneous compatibility functions, that is, the master and the slave use the same hardware, the master and the slave are encoded according to the serial number, the master and the slave are numbered as follows: master 0 , slave 1 , slave 2 , ..., slave n The host and the slave are connected via CAN bus communication, so that when the host fails, the slave can call the host program to ensure the normal use of the system. The slave can also call the slave program at the same time and be used as a slave, which can not only ensure the normal operation of the system, but also obtain the charging status of the battery in the battery compartment, effectively reducing the impact of the host failure on the charging and swapping cabinet system, and ensuring the continuity of service even under adverse conditions.

[0014] The input end of each group of the slave machines is respectively connected to the output end of the charger, and the output end of each charger independently controls the charging process of a battery compartment. A pressure sensor is installed at the bottom of each group of the battery compartments, and the pressure sensor is communicatively connected to the charger. The battery compartment is used to place batteries to be charged, and a magnetizer is installed on the back of the battery. A Hall sensor is installed on the rear side of the battery compartment. The pressure sensor and the Hall sensor cooperate with each other to obtain whether the battery is in place. When the battery is in place, the battery is charged, otherwise, the charging is exited.

[0015] In a further embodiment, the battery presence detection process is as follows: The magnetic field is detected by the Hall sensor. After the Hall sensor detects the magnetic field, the pressure sensor is used to detect the pressure. When the magnetic field and pressure are detected at the same time, the battery voltage is fed back through the charger. When the fed-back battery voltage is within the normal range, the battery is charged, otherwise, the charging is exited.

[0016] When the signal of the Hall sensor and the pressure sensor cannot be obtained, the one-minute communication detection is entered, that is, when the signal of the Hall sensor and the pressure sensor cannot be obtained, the charger charges the Hall sensor and the pressure sensor with a current of 1.0A for 1 minute. After completing 1 minute of charging, the signal of the Hall sensor and the pressure sensor is obtained again. When the signal of the Hall sensor and the pressure sensor is not obtained, it is determined that the battery is not an ordinary battery, and the battery is blindly charged.

[0017] In a further embodiment, after obtaining the signals of the Hall sensor and the pressure sensor, the battery charging process is as follows: The current battery voltage and power are obtained through the charger. When the battery voltage is less than or equal to 45V, or the power is less than or equal to 10%, the battery is pre-charged with a current of 54.2V / 2.5A. When the battery voltage is greater than 45V or the battery power is greater than 10%, the battery is charged with a constant current of 7A. When the battery voltage is greater than or equal to 52V or the power is greater than or equal to 85%, the battery is charged at a constant voltage of 54.2V until the current is less than 300mA. The battery is considered fully charged and charging of the battery is stopped.

[0018] In a further embodiment, the charging process when blind charging the battery is as follows: When the battery voltage is less than or equal to 45V, the battery is pre-charged with a current of 54.2V / 2.5A; When the battery voltage is greater than 45V, the battery is charged with a constant current of 7A; When the battery voltage is greater than or equal to 52V, the battery is charged at a constant voltage of 54.2V until the current is lower than 300mA. The battery is considered fully charged and charging stops. This can achieve blind charging of old batteries and smart charging of new batteries, and is compatible with charging of more types of batteries.

[0019] In a further embodiment, the host and the slave are numbered as follows: 0 , slave 1 , slave 2 , ..., slave n , wherein the switching process between the host and the slave is as follows: When the mainboard CAN message communication is normal, it is marked as the host online; when the mainboard CAN message is lost, it is marked as the host offline. Then, according to the slave number, the code is dialed and the slave calls the host program at the same time as the original slave program, so that the slave becomes the host and comes back online. At the same time, the slave is still reused as a slave, effectively reducing the impact of the host failure on the charging and swapping cabinet system, ensuring the continuity of service even under adverse conditions.

[0020] A multifunctional power exchange cabinet with automatic switching between master and slave machines comprises a shell, wherein a plurality of charging compartments are installed in the shell, a slave machine is installed in each group of the charging compartments, a Hall sensor and a pressure sensor are installed in the charging compartments, the charging compartments are used to place batteries to be charged, a magnetizer is installed on the back of the battery, a host machine is installed in the shell, the host machine is connected to each group of the slave machines by CAN bus communication, the slave machines are connected to the Hall sensor and the pressure sensor in the charging compartment by communication, the Hall sensor and the pressure sensor are used to cooperate to obtain whether the battery in the battery compartment is in place, and the slave machine is connected to the battery by RS485 communication to complete the charging of the battery.

[0021] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A multifunctional power exchange cabinet control system with automatic master-slave switching, characterized in that: The invention comprises a group of host machines and at least two groups of slave machines, wherein the host machines and the slave machines are both provided with dial codes, and the host machines and the slave machines have a simultaneous compatible function, and the host machines and the slave machines are both coded according to serial numbers, and the host machines and the slave machines are connected through CAN bus communication, and the input end of each group of the slave machines is respectively connected to the output end of the charger, and the output end of each charger independently controls the charging process of a battery compartment, and a pressure sensor is installed at the bottom of each group of the battery compartments, and the pressure sensor is communicatively connected to the charger, and the battery compartment is used to place batteries to be charged, and a Hall sensor is installed at the rear side of the battery compartment, and the pressure sensor and the Hall sensor cooperate with each other to obtain whether the battery is in place, and when the battery is in place, the battery is charged, and vice versa, the charging is exited.

2. A multifunctional power exchange cabinet control system with automatic master-slave switching according to claim 1, characterized in that: The battery presence detection process is as follows: First, the magnetic field is detected by the Hall sensor. After the Hall sensor detects the magnetic field, the pressure sensor is used to detect the pressure. After the magnetic field and pressure are detected at the same time, the battery voltage is fed back through the charger. When the fed-back battery voltage is within the normal range, the battery is charged, otherwise, the charging is exited.

3. A multifunctional power exchange cabinet control system with automatic master-slave switching according to claim 2, characterized in that: When the signal of the Hall sensor and the pressure sensor cannot be obtained, the one-minute communication detection is entered, that is, when the signal of the Hall sensor and the pressure sensor cannot be obtained, the charger charges the Hall sensor and the pressure sensor with a current of 1.0A for 1 minute. After completing 1 minute of charging, the signal of the Hall sensor and the pressure sensor is obtained again. When the signal of the Hall sensor and the pressure sensor is not obtained, it is determined that the battery is not an ordinary battery, and the battery is blindly charged.

4. A multifunctional power exchange cabinet control system with automatic master-slave switching according to claim 2, characterized in that: After obtaining the signals from the Hall sensor and pressure sensor, the battery charging process is as follows: The current battery voltage and power are obtained through the charger. When the battery voltage is less than or equal to 45V, or the power is less than or equal to 10%, the battery is pre-charged with a current of 54.2V / 2.5A. When the battery voltage is greater than 45V or the battery power is greater than 10%, the battery is charged with a constant current of 7A. When the battery voltage is greater than or equal to 52V or the power is greater than or equal to 85%, the battery is charged at a constant voltage of 54.2V until the current is less than 300mA. The battery is considered fully charged and charging of the battery is stopped.

5. A multifunctional power exchange cabinet control system with automatic master-slave switching according to claim 3, characterized in that: The process of blind charging the battery is as follows: When the battery voltage is less than or equal to 45V, the battery is pre-charged with a current of 54.2V / 2.5A; When the battery voltage is greater than 45V, the battery is charged with a constant current of 7A; When the battery voltage is greater than or equal to 52V, the battery is charged at a constant voltage of 54.2V until the current is less than 300mA. The battery is considered fully charged and charging of the battery is stopped.

6. A multifunctional power exchange cabinet control system with automatic master-slave switching according to claim 1, characterized in that: The host and the slave are numbered as follows: host 0, slave 1, slave 2, ..., slave n , wherein the switching process between the host and the slave is as follows: When the mainboard CAN message communication is normal, it is marked as the host online; when the mainboard CAN message is lost, it is marked as the host offline. Then, according to the slave number, the code is dialed, and the slave calls the host program at the same time as the original slave program is called, so that the slave becomes the host and is back online. At the same time, the slave is still reused as a slave.

7. A multifunctional power exchange cabinet with automatic switching between master and slave machines, characterized in that: It includes a shell, a plurality of charging compartments are installed in the shell, a slave machine is installed in each group of the charging compartments, a Hall sensor and a pressure sensor are installed in the charging compartment, the charging compartment is used to place batteries to be charged, a magnetizer is installed on the back of the battery, a host machine is installed in the shell, the host machine is connected to each group of the slave machines via CAN bus communication, the slave machines are connected to the Hall sensors and pressure sensors in the charging compartments, and the slave machines are connected to the batteries via RS485 communication.

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