Control method and device of battery management system, medium and photovoltaic cleaning equipment

Abstract

The invention discloses a control method and device of a battery management system, a medium and photovoltaic cleaning equipment, the method is applied to the photovoltaic cleaning equipment, and the photovoltaic cleaning equipment comprises a battery, a motion controller connected with the battery through a secondary loop relay, and a motor connected with the battery through a main loop relay. A solar MPPT connected with a battery through a charging relay comprises the steps that after a wake-up source is detected, a secondary loop relay is controlled to be closed, and a battery management system enters an initial state; obtaining a motor driving instruction and a solar MPPT charging port voltage; and switching the opening and closing states of the main loop relay and the charging relay according to the motor driving instruction and the voltage of the solar MPPT charging port, so that the battery management system enters a corresponding working state. Therefore, the working state of the battery management system is changed by switching the opening and closing states of the main loop relay and the charging relay, so that the photovoltaic cleaning equipment can utilize light energy at the maximum efficiency and respond to an operation instruction in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of power management of photovoltaic cleaning equipment, and in particular to a control method for a battery management system applied to photovoltaic cleaning equipment, a computer-readable storage medium, a control device for a battery management system applied to photovoltaic cleaning equipment, and a photovoltaic cleaning equipment. Background Art

[0002] With the widespread use of lithium-ion batteries in more fields, the functions of battery management system BMS (Battery Management System) are becoming more and more abundant, and BMS plays a decisive role in battery charging and discharging management.

[0003] However, the problem with the related technology is that charging and discharging are mutually exclusive when the conventional BMS is performing charging and discharging management. Either it can only enter the charging state or the discharging state. This method is not suitable for photovoltaic cleaning equipment in application scenarios where simultaneous charging and discharging exist. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first object of the present invention is to propose a control method for a battery management system applied to a photovoltaic cleaning device, which enables the photovoltaic cleaning device to utilize light energy with maximum efficiency and respond to operating instructions in real time.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] The third object of the present invention is to provide a control device for a battery management system applied to photovoltaic cleaning equipment.

[0007] A fourth objective of the present invention is to provide a photovoltaic cleaning device.

[0008] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a control method for a battery management system applied to photovoltaic cleaning equipment, wherein the photovoltaic cleaning equipment includes a battery, a motion controller connected to the battery through a secondary loop relay, a motor connected to the battery through a main loop relay, and a solar MPPT connected to the battery through a charging relay. The method includes: after detecting a wake-up source, controlling the secondary loop relay to close so that the battery management system enters an initialization state; obtaining a motor drive instruction and a solar MPPT charging port voltage; and switching the opening and closing states of the main loop relay and the charging relay according to the motor drive instruction and the solar MPPT charging port voltage so that the battery management system enters a corresponding working state.

[0009] According to the control method of the battery management system applied to the photovoltaic cleaning equipment according to the embodiment of the present invention, after the wake-up source is detected, the secondary circuit relay is controlled to close, so that the battery management system enters the initialization state, and then the motor drive instruction and the solar MPPT charging port voltage are obtained, and according to the motor drive instruction and the solar MPPT charging port voltage, the main circuit relay and the charging relay are switched on and off, so that the battery management system enters the corresponding working state. Thus, the working state of the battery management system is changed by switching the on and off states of the main circuit relay and the charging relay, so that the photovoltaic cleaning equipment can use the light energy with maximum efficiency and respond to the operation instruction in real time.

[0010] In addition, the control method of the battery management system applied to photovoltaic cleaning equipment according to the above embodiment of the present invention may also have the following additional technical features:

[0011] According to one embodiment of the present invention, the wake-up source includes a motion controller CAN message and a solar MPPT charging port voltage, and the working state of the battery management system includes a driving state, a driving and charging parallel state, and a charging state.

[0012] According to one embodiment of the present invention, the switching of the opening and closing states of the main circuit relay and the charging relay so that the battery management system enters the corresponding working state includes: when the motor drive instruction is detected, controlling the main circuit relay to close so that the battery management system enters the drive state.

[0013] According to one embodiment of the present invention, the switching of the opening and closing states of the main circuit relay and the charging relay causes the battery management system to enter a corresponding working state, including: when the voltage of the solar MPPT charging port is detected, controlling the charging relay to close, causing the battery management system to enter the charging state.

[0014] According to one embodiment of the present invention, the switching of the opening and closing states of the main circuit relay and the charging relay causes the battery management system to enter a corresponding working state, including: when the motor drive instruction is detected and the voltage of the solar MPPT charging port is detected, the main circuit relay and the charging relay are controlled to close, so that the battery management system enters the drive and charging parallel state.

[0015] According to one embodiment of the present invention, the method further includes: when the motor drive instruction is not detected and the solar MPPT charging port voltage is not detected, controlling the main circuit relay and the charging relay to be disconnected so that the battery management system enters a standby state.

[0016] According to one embodiment of the present invention, the method further includes: if the motor drive instruction is not detected within a preset time and the solar MPPT charging port voltage is not detected, controlling the battery management system to stop sending messages and turn off the high power consumption function, so that the battery management system enters a low power consumption state.

[0017] To achieve the above-mentioned purpose, a computer-readable storage medium is proposed in an embodiment of the second aspect of the present invention, on which a control program for a battery management system applied to a photovoltaic cleaning device is stored. When the control program for a battery management system applied to a photovoltaic cleaning device is executed by a processor, the control method for a battery management system applied to a photovoltaic cleaning device of the above-mentioned embodiment of the present invention is implemented.

[0018] According to the computer-readable storage medium of the embodiment of the present invention, by executing the control program stored thereon and applied to the battery management system of the photovoltaic cleaning equipment, the photovoltaic cleaning equipment can utilize light energy with maximum efficiency and respond to operation instructions in real time.

[0019] To achieve the above-mentioned purpose, the third aspect of the embodiment of the present invention proposes a control device for a battery management system applied to photovoltaic cleaning equipment, wherein the photovoltaic cleaning equipment includes a battery, a motion controller connected to the battery through a secondary circuit relay, a motor connected to the battery through a main circuit relay, and a solar MPPT connected to the battery through a charging relay. The device includes: a wake-up module, which is used to control the secondary circuit relay to close after detecting the wake-up source, so that the battery management system enters an initialization state; a monitoring module, which is used to obtain motor drive instructions and the voltage of the solar MPPT charging port; and a control module, which is used to switch the opening and closing states of the main circuit relay and the charging relay according to the motor drive instructions and the voltage of the solar MPPT charging port, so that the battery management system enters a corresponding working state.

[0020] According to the control device of the battery management system applied to the photovoltaic cleaning equipment of the embodiment of the invention, after the wake-up source is detected, the wake-up module controls the secondary circuit relay to close, so that the battery management system enters the initialization state, and then obtains the motor drive instruction and the solar MPPT charging port voltage through the monitoring module, and switches the opening and closing states of the main circuit relay and the charging relay according to the motor drive instruction and the solar MPPT charging port voltage through the control module, so that the battery management system enters the corresponding working state. Thus, the working state of the battery management system is changed by switching the opening and closing states of the main circuit relay and the charging relay, so that the photovoltaic cleaning equipment can use the light energy with maximum efficiency and respond to the operation instruction in real time.

[0021] To achieve the above-mentioned purpose, a photovoltaic cleaning device provided in an embodiment of a fourth aspect of the present invention includes a control device of a battery management system applied to a photovoltaic cleaning device in the above-mentioned embodiment of the present invention.

[0022] The photovoltaic cleaning equipment according to the embodiment of the present invention can utilize light energy with maximum efficiency and respond to operating instructions in real time by adopting the control device of the battery management system applied to the photovoltaic cleaning equipment.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a block diagram of a photovoltaic cleaning device according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a control method for a battery management system applied to photovoltaic cleaning equipment according to an embodiment of the present invention;

[0026] Figure 3 is a flow chart of a control method for a battery management system applied to photovoltaic cleaning equipment according to a specific embodiment of the present invention;

[0027] Figure 4 is a block diagram of a control device of a battery management system applied to photovoltaic cleaning equipment according to an embodiment of the present invention;

[0028] Figure 5 is a block diagram of a photovoltaic cleaning device according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] Photovoltaic cleaning equipment 1000, battery 10, secondary circuit relay K1, motion controller 20, main circuit relay K2, motor 30, charging relay K3, solar MPPT40, control device 100 of battery management system applied to photovoltaic cleaning equipment, wake-up module 50, monitoring module 60, control module 70. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following describes a control method for a battery management system applied to a photovoltaic cleaning device, a computer-readable storage medium, a control device for a battery management system applied to a photovoltaic cleaning device, and a photovoltaic cleaning device according to embodiments of the present invention with reference to the accompanying drawings.

[0033] Specifically, in some embodiments of the present invention, Figure 1 As shown, the photovoltaic cleaning device 1000 includes a battery 10, a motion controller 20 connected to the battery 10 through a secondary circuit relay K1, a motor 30 connected to the battery 10 through a main circuit relay K2, and a solar MPPT (Maximum Power Point Tracking) 40 connected to the battery 10 through a charging relay K3. In addition, other structures and functions of the photovoltaic cleaning device 1000 in the embodiment of the present invention are known to technicians in this field and are not described here to reduce redundancy.

[0034] Figure 2 1 is a flow chart of a control method of a battery management system applied to photovoltaic cleaning equipment according to an embodiment of the present invention.

[0035] Specifically, in some embodiments of the present invention, Figure 2 As shown, a control method for a battery management system applied to photovoltaic cleaning equipment includes:

[0036] S101, after detecting the wake-up source, controlling the secondary circuit relay to close, so that the battery management system enters the initialization state.

[0037] Furthermore, in some embodiments of the present invention, the wake-up source includes a motion controller CAN message and a solar MPPT charging port voltage.

[0038] It can be understood that in this embodiment of the present invention, the battery management system can be awakened by the motion controller CAN message, or the voltage of the solar MPPT charging port. Then, when the battery management system detects the wake-up source, it controls the battery management system to power on at a low voltage and controls the secondary circuit relay to close, so that the battery management system enters the initialization state.

[0039] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in a power-off state, the secondary circuit relay K1, the main circuit relay K2 and the charging relay K3 are all in a disconnected state. At this time, the battery management system does not work and the battery 10 does not supply power to the outside. Moreover, when the battery management system is in an initialization state, the secondary circuit relay K1 is in a closed state, and the main circuit relay K2 and the charging relay K3 are in a disconnected state. At this time, the battery management system is powered on at a low voltage and operates normally and sends messages. The battery management system interacts with the motion controller 20 through messages, and the battery 10 supplies power to the motion controller 20.

[0040] S102, obtaining a motor drive instruction and a solar MPPT charging port voltage.

[0041] It can be understood that in this embodiment of the present invention, the motion controller 20 will send motor drive instructions to the motor 30 to control the operation and stop of the motor 30. At the same time, the motion controller 20 is equipped with a wireless transceiver, which can receive remote instructions in real time and upload information parameters of the battery 10, battery 30, solar MPPT40 (for example, the voltage of the solar MPPT charging port) and its own information parameters in real time.

[0042] S103, according to the motor drive instruction and the voltage of the solar MPPT charging port, the on / off states of the main circuit relay and the charging relay are switched to make the battery management system enter the corresponding working state.

[0043] It can be understood that in this embodiment of the present invention, the opening and closing states of the main circuit relay K2 and the charging relay K3 can be switched based on the motor drive instruction and the voltage of the solar MPPT charging port, so that the battery management system enters the corresponding working state, thereby enabling the photovoltaic cleaning equipment 1000 to utilize light energy with maximum efficiency and respond to operating instructions in real time.

[0044] Furthermore, in some embodiments of the present invention, the working state of the battery management system includes a driving state, a driving and charging parallel state, and a charging state.

[0045] Combine the following Figure 3 The specific embodiments of the present invention are described below with respect to various working states of the battery management system in the embodiments of the present invention:

[0046] Further, in some embodiments of the present invention, Figure 3 As shown, the on / off states of the main circuit relay and the charging relay are switched to enable the battery management system to enter a corresponding working state, including: when a motor drive instruction is detected, the main circuit relay is controlled to close to enable the battery management system to enter a drive state.

[0047] It can be understood that in this embodiment of the present invention, when a motor driving instruction is detected, it can be considered that the motor 30 needs to be driven to perform the cleaning operation, and the battery management system enters the driving state by controlling the main circuit relay K2 to be closed.

[0048] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in a driving state, the secondary circuit relay K1 and the main circuit relay K2 are in a closed state, and the charging relay K3 is in a disconnected state. At this time, the battery management system operates normally and sends messages, and the battery management system interacts with the motion controller 20 through messages, and the battery 10 supplies power to the motion controller 20 and the motor 30 at the same time.

[0049] Further, in some embodiments of the present invention, Figure 3 As shown, the on / off states of the main circuit relay and the charging relay are switched to enable the battery management system to enter a corresponding working state, including: when the voltage of the solar MPPT charging port is detected, the charging relay is controlled to close to enable the battery management system to enter a charging state.

[0050] It is understandable that in this embodiment of the present invention, when the voltage of the solar MPPT charging port is detected, it can be considered that the battery 10 needs to be recharged, and the battery management system enters the charging state by controlling the charging relay K3 to close.

[0051] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in a charging state, the secondary circuit relay K1 and the charging relay K3 are in a closed state, and the main circuit relay K2 is in a disconnected state. At this time, the battery management system operates normally and sends messages, and the battery management system interacts with the motion controller 20 through messages. The battery 10 supplies power to the motion controller 20, and at the same time, the solar MPPT 40 charges the battery 10.

[0052] Further, in some embodiments of the present invention, Figure 3 As shown, the on / off states of the main circuit relay and the charging relay are switched to enable the battery management system to enter a corresponding working state, including: when a motor drive instruction is detected and the voltage of the solar MPPT charging port is detected, the main circuit relay and the charging relay are controlled to close, so that the battery management system enters a driving and charging parallel state.

[0053] It can be understood that in this embodiment of the present invention, when a motor drive instruction is detected and the voltage of the solar MPPT charging port is detected, it can be considered that while the motor 30 needs to be driven to perform the cleaning operation, the battery 10 also needs to be recharged. By controlling the main circuit relay K2 and the charging relay K3 to be closed, the battery management system enters a driving and charging parallel state.

[0054] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in the driving and charging parallel state, the secondary circuit relay K1, the main circuit relay K2 and the charging relay K3 are all in a closed state. At this time, the battery management system operates normally and sends messages. The battery management system interacts with the motion controller 20 through messages. The battery 10 supplies power to the motion controller 20 and the motor 30. At the same time, the solar MPPT 40 charges the battery 10.

[0055] It should be noted that the control method of the battery management system applied to photovoltaic cleaning equipment based on the above-mentioned embodiment of the present invention can close the main circuit relay K2 to realize the discharge of the battery 10, can close the charging relay K3 to realize the charging of the battery 10, and can also close the main circuit relay K2 and the charging relay K3 at the same time to realize the simultaneous charging and discharging of the battery 10. Therefore, it is suitable for photovoltaic cleaning equipment 1000, and enables the photovoltaic cleaning equipment 1000 to utilize light energy with maximum efficiency and respond to operating instructions in real time.

[0056] Further, in some embodiments of the present invention, Figure 3 As shown, the method also includes: when the motor drive instruction is not detected and the solar MPPT charging port voltage is not detected, the main circuit relay and the charging relay are controlled to be disconnected, so that the battery management system enters a standby state.

[0057] It can be understood that in this embodiment of the present invention, when the motor drive instruction is not detected and the voltage of the solar MPPT charging port is not detected, it can be considered that there is no need to drive the motor 30 to perform the cleaning operation and there is no need to recharge the battery 10. By controlling the main circuit relay K2 and the charging relay K3 to be disconnected, the battery management system enters the standby state.

[0058] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in standby state, the secondary circuit relay K1 is in a closed state, the main circuit relay K2 and the charging relay K3 are in a disconnected state. At this time, the battery management system operates normally and sends messages, the battery management system interacts with the motion controller 20 through messages, and the battery 10 supplies power to the motion controller 20.

[0059] Further, in some embodiments of the present invention, Figure 3 As shown, the method also includes: if the motor drive instruction is not detected within a preset time, and the solar MPPT charging port voltage is not detected, the battery management system is controlled to stop sending messages and turn off the high power consumption function, so that the battery management system enters a low power consumption state.

[0060] It can be understood that in this embodiment of the present invention, when the battery management system enters the standby state, if the motor drive instruction is not detected within the preset time and the solar MPPT charging port voltage is not detected, the battery management system is controlled to stop sending messages and turn off the high power consumption function, so that the battery management system enters a low power consumption state. Conversely, if the motor drive instruction is detected, or the solar MPPT charging port voltage is detected, the opening and closing states of the main circuit relay and the charging relay are switched, so that the battery management system enters the corresponding working state.

[0061] Specifically, in the above-mentioned embodiment of the present invention, when the battery management system is in a low power consumption state, the secondary circuit relay K1 is in a closed state, the main circuit relay K2 and the charging relay K3 are in a disconnected state, at this time, the battery management system stops sending messages and turns off the high power consumption function, and only operates at the lowest power consumption, and the battery 10 powers the motion controller 20.

[0062] In addition, in the above-mentioned embodiment of the present invention, when the battery management system is in a low power consumption state, the motor drive instruction and the solar MPPT charging port voltage will be detected. If the motor drive instruction or the solar MPPT charging port voltage is detected, the opening and closing states of the main circuit relay and the charging relay are switched to make the battery management system enter the corresponding working state. Otherwise, the battery management system is controlled to maintain a low power consumption state.

[0063] It should be noted that the control method of the battery management system applied to photovoltaic cleaning equipment based on the above-mentioned embodiment of the present invention can enter a low power consumption state when the battery management system does not detect the motor drive instruction and the solar MPPT charging port voltage, thereby enabling the photovoltaic cleaning equipment 1000 to maintain the lowest power consumption operation and save overall energy consumption.

[0064] In summary, according to the control method of the battery management system applied to photovoltaic cleaning equipment in an embodiment of the present invention, after detecting the wake-up source, the secondary circuit relay is controlled to close, so that the battery management system enters the initialization state, and then the motor drive instruction and the solar MPPT charging port voltage are obtained, and according to the motor drive instruction and the solar MPPT charging port voltage, the main circuit relay and the charging relay are switched on and off to make the battery management system enter the corresponding working state. Thus, the working state of the battery management system is changed by switching the on and off states of the main circuit relay and the charging relay, so that the photovoltaic cleaning equipment can utilize light energy with maximum efficiency and respond to operation instructions in real time.

[0065] Based on the control method of the battery management system applied to photovoltaic cleaning equipment in the aforementioned embodiment of the present invention, the embodiment of the present invention further proposes a computer-readable storage medium, on which a control program of the battery management system applied to photovoltaic cleaning equipment is stored. When the control program of the battery management system applied to photovoltaic cleaning equipment is executed by a processor, the control method of the battery management system applied to photovoltaic cleaning equipment in the aforementioned embodiment of the present invention is implemented.

[0066] It should be understood that the specific implementation of the computer-readable storage medium of the embodiment of the present invention can refer to the specific implementation of the control method of the battery management system applied to photovoltaic cleaning equipment in the aforementioned embodiment of the present invention, and will not be repeated here to reduce redundancy.

[0067] In summary, according to the computer-readable storage medium of the embodiment of the present invention, by executing the control program stored thereon for the battery management system applied to the photovoltaic cleaning equipment, the photovoltaic cleaning equipment can utilize light energy with maximum efficiency and respond to operation instructions in real time.

[0068] Figure 4 4 is a block diagram of a control device of a battery management system applied to photovoltaic cleaning equipment according to an embodiment of the present invention.

[0069] Specifically, in some embodiments of the present invention, Figure 4 As shown, the control device 100 applied to the battery management system of photovoltaic cleaning equipment includes: a wake-up module 50 , a monitoring module 60 and a control module 70 .

[0070] Among them, the wake-up module 50 is used to control the secondary circuit relay to close after detecting the wake-up source, so that the battery management system enters the initialization state; the monitoring module 60 is used to obtain the motor drive instruction and the solar MPPT charging port voltage; the control module 70 is used to switch the opening and closing states of the main circuit relay and the charging relay according to the motor drive instruction and the solar MPPT charging port voltage, so that the battery management system enters the corresponding working state.

[0071] Furthermore, in some embodiments of the present invention, the wake-up source includes a motion controller CAN message and a solar MPPT charging port voltage, and the working state of the battery management system includes a driving state, a driving and charging parallel state, and a charging state.

[0072] Furthermore, in some embodiments of the present invention, the control module 70 is also used to control the main circuit relay to close when a motor driving instruction is detected, so that the battery management system enters a driving state.

[0073] Furthermore, in some embodiments of the present invention, the control module 70 is also used to control the charging relay to close when the voltage of the solar MPPT charging port is detected, so that the battery management system enters a charging state.

[0074] Furthermore, in some embodiments of the present invention, the control module 70 is also used to control the main circuit relay and the charging relay to close when a motor drive instruction is detected and the voltage of the solar MPPT charging port is detected, so that the battery management system enters a driving and charging parallel state.

[0075] Furthermore, in some embodiments of the present invention, the control module 70 is also used to control the main circuit relay and the charging relay to be disconnected when no motor drive command is detected and no voltage is detected at the solar MPPT charging port, so that the battery management system enters a standby state.

[0076] Furthermore, in some embodiments of the present invention, the control module 70 is also used to control the battery management system to stop sending messages and turn off the high power consumption function when the motor drive instruction is not detected within a preset time and the solar MPPT charging port voltage is not detected, so that the battery management system enters a low power consumption state.

[0077] It should be understood that the specific implementation of the control device of the battery management system applied to photovoltaic cleaning equipment in the embodiment of the present invention corresponds one to one with the specific implementation of the control method of the battery management system applied to photovoltaic cleaning equipment in the aforementioned embodiment of the present invention, and will not be repeated here to reduce redundancy.

[0078] In summary, according to the control device of the battery management system applied to photovoltaic cleaning equipment in the embodiment of the invention, after detecting the wake-up source, the wake-up module controls the secondary circuit relay to close, so that the battery management system enters the initialization state, and then obtains the motor drive instruction and the solar MPPT charging port voltage through the monitoring module, and switches the opening and closing states of the main circuit relay and the charging relay according to the motor drive instruction and the solar MPPT charging port voltage through the control module, so that the battery management system enters the corresponding working state. Thus, the working state of the battery management system is changed by switching the opening and closing states of the main circuit relay and the charging relay, so that the photovoltaic cleaning equipment can use the light energy with maximum efficiency and respond to the operation instruction in real time.

[0079] Figure 5 is a block diagram of a photovoltaic cleaning device according to an embodiment of the present invention.

[0080] Specifically, in some embodiments of the present invention, Figure 5 As shown, the photovoltaic cleaning device 1000 includes the control device 100 of the battery management system applied to the photovoltaic cleaning device according to the above-mentioned embodiment of the present invention.

[0081] It should be understood that the specific implementation of the photovoltaic cleaning device 1000 of the embodiment of the present invention can refer to the specific implementation of the control method of the battery management system applied to the photovoltaic cleaning device in the aforementioned embodiment of the present invention, and will not be repeated here to reduce redundancy.

[0082] In summary, the photovoltaic cleaning equipment according to the embodiment of the present invention can utilize light energy with maximum efficiency and respond to operating instructions in real time by adopting the control device of the battery management system applied to the photovoltaic cleaning equipment.

[0083] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0084] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0086] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0090] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for a battery management system applied to photovoltaic cleaning equipment, characterized in that: The photovoltaic cleaning device includes a battery, a motion controller connected to the battery via a secondary circuit relay, a motor connected to the battery via a primary circuit relay, and a solar MPPT connected to the battery via a charging relay. The method includes: After detecting the wake-up source, controlling the secondary circuit relay to close, so that the battery management system enters an initialization state; Get the motor drive command and the voltage of the solar MPPT charging port; According to the motor drive instruction and the voltage of the solar MPPT charging port, the on / off states of the main circuit relay and the charging relay are switched, so that the battery management system enters a corresponding working state.

2. The control method of the battery management system applied to photovoltaic cleaning equipment according to claim 1, characterized in that: The wake-up source includes a motion controller CAN message and a solar MPPT charging port voltage, and the working state of the battery management system includes a driving state, a driving and charging parallel state, and a charging state.

3. The control method of the battery management system applied to photovoltaic cleaning equipment according to claim 2, wherein: The switching of the on / off states of the main circuit relay and the charging relay so that the battery management system enters a corresponding working state includes: When the motor driving instruction is detected, the main circuit relay is controlled to close, so that the battery management system enters the driving state.

4. The control method of the battery management system applied to photovoltaic cleaning equipment according to claim 2, wherein: The switching of the on / off states of the main circuit relay and the charging relay so that the battery management system enters a corresponding working state includes: When the voltage of the solar MPPT charging port is detected, the charging relay is controlled to close, so that the battery management system enters the charging state.

5. The control method of the battery management system applied to photovoltaic cleaning equipment according to claim 2, wherein: The switching of the on / off states of the main circuit relay and the charging relay so that the battery management system enters a corresponding working state includes: When the motor drive instruction is detected and the voltage of the solar MPPT charging port is detected, the main circuit relay and the charging relay are controlled to be closed, so that the battery management system enters the driving and charging parallel state.

6. The control method for a battery management system applied to a photovoltaic cleaning device according to any one of claims 3 to 5, wherein: The method further comprises: When the motor drive instruction is not detected and the voltage of the solar MPPT charging port is not detected, the main circuit relay and the charging relay are controlled to be disconnected, so that the battery management system enters a standby state.

7. The control method of the battery management system applied to photovoltaic cleaning equipment according to claim 6, wherein: The method further comprises: If the motor drive instruction is not detected within a preset period of time and the solar MPPT charging port voltage is not detected, the battery management system is controlled to stop sending messages and turn off the high power consumption function, so that the battery management system enters a low power consumption state.

8. A computer-readable storage medium, characterized in that: A control program of a battery management system applied to photovoltaic cleaning equipment is stored thereon, and when the control program of the battery management system applied to photovoltaic cleaning equipment is executed by a processor, a control method of a battery management system applied to photovoltaic cleaning equipment as described in any one of claims 1-7 is implemented.

9. A control device for a battery management system used in photovoltaic cleaning equipment, characterized in that: The photovoltaic cleaning device includes a battery, a motion controller connected to the battery through a secondary circuit relay, a motor connected to the battery through a primary circuit relay, and a solar MPPT connected to the battery through a charging relay. The device includes: A wake-up module, used for controlling the secondary circuit relay to close after detecting the wake-up source, so that the battery management system enters an initialization state; Monitoring module, used to obtain motor drive instructions and solar MPPT charging port voltage; The control module is used to switch the on / off states of the main circuit relay and the charging relay according to the motor drive instruction and the voltage of the solar MPPT charging port, so that the battery management system enters a corresponding working state.

10. A photovoltaic cleaning device, characterized in that: The photovoltaic cleaning device comprises the control device of the battery management system applied to the photovoltaic cleaning device as claimed in claim 9.

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