Method and device for controlling photographing battery

Abstract

The embodiment of the invention provides a control method and device of a battery for photography. The photographic battery comprises a first port module used for supplying power to photographic equipment and a second port module used for supplying power to external equipment, and the control method comprises the steps that the total output power of the photographic battery and the power supply state of the first port module and the power supply state of the second port module are acquired; and if both the first port module and the second port module are in an external power supply state and the total output power of the photographing battery is higher than a first power threshold value, controlling a port in the second port module to be powered off, so that the total output power of the photographing battery is lower than the first power threshold value. According to the technical scheme, effective control over the photographing battery can be achieved, and on the premise that the use scene of the photographing battery is expanded, the use safety and the power supply efficiency of the photographing battery are improved.

Description

[0001] This application claims the priority of the Chinese patent application filed on July 17, 2024, with application number 2024217059656 and utility model name “V-Mount Battery”. Technical Field

[0002] The present application relates to the field of battery technology, and more specifically, to a control method and device for a photographic battery. Background Art

[0003] Photographic batteries are an indispensable part of photographic equipment, providing the necessary power support for cameras, flashes and other photographic equipment. With the development of the photography industry, more and more auxiliary equipment are needed during the use of cameras, such as mobile phones, photographic lighting, monitors, focus followers, wireless image transmission, stabilizers, microphones, etc., and the power supply ports of the above auxiliary equipment are of various types, such as USB-A ports, Type-C ports, DC ports, etc.

[0004] In order to realize the function of one power for multiple uses, the related art proposes to set up various types of power supply ports on the photographic battery for powering external auxiliary equipment, but it is impossible to effectively control these ports, which will affect the safety of use and power supply efficiency of the photographic battery. Summary of the invention

[0005] The embodiments of the present application provide a control method and device for a photographic battery, which can achieve effective control of the photographic battery, and improve the safety of use and power supply efficiency of the photographic battery while expanding the use scenarios of the photographic battery.

[0006] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0007] According to one aspect of an embodiment of the present application, a control method for a photographic battery is provided, wherein the photographic battery includes a first port module for supplying power to photographic equipment, and a second port module for supplying power to an external device, the control method including: obtaining the total output power of the photographic battery, and the power supply status of the first port module and the second port module; if the first port module and the second port module are both in an external power supply state, and the total output power of the photographic battery is higher than a first power threshold, controlling the port in the second port module to be powered off, so that the total output power of the photographic battery is lower than the first power threshold.

[0008] In some embodiments of the present application, based on the aforementioned scheme, the ports in the second port module are controlled to be powered off so that the total output power of the photographic battery is lower than the first power threshold, including: controlling the ports in the second port module to be powered off in sequence according to a set order until the total output power of the photographic battery is lower than the first power threshold; wherein the set order includes any one of the following methods: the order of the start time of external power supply from late to early, and the power-off order set by the user.

[0009] In some embodiments of the present application, based on the aforementioned scheme, the control method also includes: if after all ports in the second port module are powered off, the total output power of the photographic battery is still higher than the first power threshold, then the output current of the photographic battery is obtained; when the output current is higher than the set current threshold, the photographic battery is controlled to stop supplying external power.

[0010] In some embodiments of the present application, based on the aforementioned scheme, the control method also includes: if the first port module is not in an external power supply state, the second port module is in an external power supply state, and the total output power of the photographic battery is higher than a second power threshold, then control each port in the second port module to be powered off in a set order until the total output power of the photographic battery is lower than the second power threshold.

[0011] In some embodiments of the present application, based on the aforementioned scheme, a display module is also provided on the photographic battery, and the display module is used to present a battery control interface corresponding to the photographic battery; the control method also includes: receiving a power adjustment instruction set by the user for a designated port in the second port module through the battery control interface; and controlling the output power of the designated port according to the power adjustment instruction.

[0012] In some embodiments of the present application, based on the aforementioned scheme, a Bluetooth module is also provided on the photographic battery, and the Bluetooth module is used to communicate with a battery control terminal, and a battery control interface corresponding to the photographic battery is displayed on the battery control terminal; the control method also includes: sending the battery status information of the photographic battery to the battery control terminal via the Bluetooth module, so that the battery control terminal presents the battery status information on the battery control interface; receiving control instructions triggered by the user on the battery control interface via the Bluetooth module; and controlling the charging and discharging process of the photographic battery based on the control instructions.

[0013] In some embodiments of the present application, based on the aforementioned scheme, the control instruction includes a power adjustment instruction for a designated port in the second port module; the charging and discharging process of the photographic battery is controlled based on the control instruction, including: controlling the output power of the designated port according to the power adjustment instruction.

[0014] In some embodiments of the present application, based on the aforementioned scheme, the battery status information includes at least one of the following information: the remaining battery power of the photographic battery, the remaining discharge time of the photographic battery, the temperature of the photographic battery, the attribute information of each port of the photographic battery, the power supply status of each port of the photographic battery, the abnormal alarm information of the photographic battery, the controls corresponding to each port of the photographic battery, the switch control of the photographic battery, the status information display mode switching control, the health status of the photographic battery, the number of times the photographic battery is charged, the number of times the photographic battery is discharged, the remaining life of the photographic battery, the charging threshold of the photographic battery, and the discharge threshold of the photographic battery.

[0015] In some embodiments of the present application, based on the above-mentioned solution, the control method further includes: if it is detected that there is a target port in the second port module whose output power is higher than a third power threshold, controlling the target port to be powered off.

[0016] In some embodiments of the present application, based on the above-mentioned solution, the control method further includes: if a shutdown instruction for the target port in the second port module is received, controlling the target port to be powered off.

[0017] According to one aspect of an embodiment of the present application, a control device for a photographic battery is provided, wherein the photographic battery includes a first port module for supplying power to photographic equipment, and a second port module for supplying power to an external device, and the control device includes: an acquisition unit configured to acquire the total output power of the photographic battery and the power supply status of the first port module and the second port module; and a control unit configured to control the port in the second port module to be powered off if the first port module and the second port module are both in an external power supply state and the total output power of the photographic battery is higher than a first power threshold, so as to make the total output power of the photographic battery lower than the first power threshold.

[0018] According to one aspect of an embodiment of the present application, a computer-readable medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the control method of a photographic battery as described in the above embodiment is implemented.

[0019] According to one aspect of an embodiment of the present application, an electronic device is provided, comprising: one or more processors; a storage device for storing one or more computer programs, wherein when the one or more computer programs are executed by the one or more processors, the electronic device implements the control method of a photographic battery as described in the above embodiments.

[0020] According to one aspect of the embodiments of the present application, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of an electronic device reads and executes the computer program from the computer-readable storage medium, so that the electronic device executes the control method of a photographic battery provided in the above-mentioned various optional embodiments.

[0021] In the technical solutions provided in some embodiments of the present application, by real-time monitoring of the total output power of the photographic battery and the power supply status of the two port modules (i.e., the first port module and the second port module), it is possible to intelligently balance the allocation of battery resources, ensuring that in a complex and changeable photographic environment, the photographic equipment powered by the first port module can obtain sufficient power support first. At the same time, by controlling the power off of one or some ports in the second port module when the total output power of the photographic battery exceeds the preset first power threshold, it is possible to effectively prevent the occurrence of overload of the photographic battery, avoiding the risk of battery overheating, performance degradation, or even damage caused by excessive power. It can be seen that the technical solution of the embodiments of the present application realizes effective control of the photographic battery, and improves the safety and power supply efficiency of the photographic battery while expanding the use scenarios of the photographic battery.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0024] Figure 2 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0025] Figure 3 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0026] Figure 4 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0027] Figure 5A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0028] Figure 6 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0029] Figure 7 A schematic structural diagram of a photographic battery according to an embodiment of the present application is shown;

[0030] Figure 8 A flow chart showing a method for controlling a photographic battery according to an embodiment of the present application is shown;

[0031] Fig. 9 A block diagram showing a control device for a photographic battery according to an embodiment of the present application is shown;

[0032] Fig.10 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0033] The exemplary embodiments are now described in a more comprehensive manner with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to these examples; on the contrary, the purpose of providing these embodiments is to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0034] In addition, the features, structures or characteristics described in the present application may be combined in one or more embodiments in any suitable manner. In the following description, there are many specific details so that the embodiments of the present application can be fully understood. However, those skilled in the art will appreciate that when implementing the technical scheme of the present application, all the detailed features in the embodiments may not be needed, one or more specific details may be omitted, or other methods, elements, devices, steps, etc. may be adopted.

[0035] In the embodiments of the present application, the term "module" or "unit" refers to a computer program or a part of a computer program with a predetermined function, and works together with other related parts to achieve a predetermined goal, and can be implemented in whole or in part by using software, hardware (such as processing circuits or memories) or a combination thereof. Similarly, a processor (or multiple processors or memories) can be used to implement one or more modules or units. In addition, each module or unit can be part of an overall module or unit that includes the function of the module or unit.

[0036] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0037] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0038] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In recent years, with the development of the photography industry, more and more auxiliary devices are needed for cameras during use, such as mobile phones, photography lights, monitors, focus followers, wireless image transmission, stabilizers, microphones, etc. Since these devices need power supply, and in order to realize the multi-purpose function of photography batteries, multiple types of power supply ports can be set on photography batteries to power external auxiliary devices, such as USB-A ports, Type-C ports, DC ports, etc. in addition to the conventional D-Tap ports and V ports on photography batteries. In this case, since photography batteries may need to power multiple types of devices, effective control of these ports to ensure the safety of use and power supply efficiency of photography batteries is a technical problem that needs to be solved urgently.

[0040] Based on the above technical problems, the present application proposes a new photographic battery. Specifically, referring to Figure 1 As shown, the photographic battery in the embodiment of the present application includes: a battery module 100 , a first port module 200 , a second port module 300 and a Bluetooth module 400 .

[0041] Among them, the battery module 100 includes a battery pack for storing electrical energy; the first port module 200 is electrically connected to the battery module 100, and the first port module 200 is used to enable the battery pack to supply power to the photographic equipment. Optionally, the first port module 200 may include a D-Tap port, a V-port, etc.

[0042] The second port module 300 is electrically connected to the battery module 100, and the second port module 300 includes at least one controllable port, which is used to enable the battery pack to supply power to an external device. Optionally, these controllable ports may be, for example, a USB-A port, a Type-C port, a DC port, etc. The Bluetooth module 400 is electrically connected to the battery module 100, and the Bluetooth module 400 may be communicatively connected to the battery control terminal to receive a control signal for the controllable port. Optionally, the battery control terminal may be, for example, a smart phone, a tablet computer, a desktop computer, etc.

[0043] In some optional embodiments, referring to Figure 2 As shown, the second port module 300 may include: a voltage conversion circuit 301, an anti-reverse connection circuit 302 and a DC output port 303. The voltage conversion circuit 301 is electrically connected to the battery module 100, and is used to perform voltage conversion processing on the output voltage of the battery pack; the anti-reverse connection circuit 302 is connected between the voltage conversion circuit 301 and the DC output port 303, and is used to prevent the DC output port 303 from transmitting voltage to the voltage conversion circuit 301; the DC output port 303 is used to connect an external device.

[0044] exist Figure 2 In the illustrated embodiment, by providing an anti-reverse connection circuit 302, it is ensured that only the battery module 100 can supply power to the external device through the DC output port 303, thereby preventing the user from mistakenly connecting the DC output port 303 to a power source, and the power supply voltage is reversely applied to the battery module 100 through the DC output port, thereby damaging the photographic battery. Optionally, the external device may be, for example, a mobile phone, a camera, a photographic lamp, a notebook, a monitor, a focus follower, a wireless image transmission, a stabilizer, a microphone, and the like. In a specific implementation, the anti-reverse connection circuit 302 may be a switch device with a unidirectional conduction function, such as a diode.

[0045] In some optional embodiments, if the second port module 300 includes at least two DC output ports 303 and voltage conversion circuits 301 corresponding to the at least two DC output ports 303, the at least two DC output ports 303 can be connected to different anti-reverse connection circuits 302, and different anti-reverse connection circuits 303 are connected to different voltage conversion circuits 301. That is, the embodiment of the present application may have multiple Figure 2 The circuit structure of the voltage conversion circuit 301, the anti-reverse connection circuit 302 and the DC output port 303 shown in FIG.

[0046] In some optional embodiments, referring to Figure 3As shown, the battery module 100 may include a BMS (Battery Management System) module 102 and a main control circuit 103 in addition to the battery pack 101. The BMS module 102 is electrically connected to the battery pack 101, the main control circuit 103 is electrically connected to the BMS module 102, and the voltage conversion circuit 301 is electrically connected to the BMS module 102 and the main control circuit 103. The DC output port 303 may also be connected to the main control circuit 103 for communication to feedback port status information to the main control circuit 103.

[0047] Optionally, the BMS module 102 can provide monitoring and protection for the battery pack 101 during the charging and discharging process of the battery pack 101, such as temperature monitoring, voltage monitoring, current monitoring, overcurrent protection, over-temperature protection, short circuit protection, undervoltage protection, overvoltage protection, etc. of the battery pack 101, to prevent abnormal conditions from occurring during the charging and discharging process of the battery pack 101 and causing adverse effects on the performance of the battery pack 101, and to extend its service life. The port status information fed back by the DC output port 303 to the main control circuit 103 may include one or more parameters such as current, voltage, and power.

[0048] In some optional embodiments, referring to Figure 4 As shown, the second port module 300 may include a voltage conversion circuit 304, a USB-A protocol module 305 and a USB-A port 306. The USB-A port 306 is used to connect an external device; the voltage conversion circuit 304 is electrically connected to the battery module 100, and is used to perform voltage conversion processing on the output voltage of the battery pack; and the USB-A protocol module 305 is connected between the voltage conversion circuit 304 and the USB-A port 306.

[0049] It should be noted that the USB-A port 306 can be used to supply power to an external device using the USB-A port 306, and the second port module 300 can have one or more USB-A ports 306. Optionally, the USB-A port 306 can also be used to charge the battery pack in the battery module 100. If the second port module 300 includes multiple USB-A ports 306, then the multiple USB-A ports 306 can be connected to the same USB-A protocol module 305, or to different USB-A protocol modules 305. In other words, if the second port module 300 includes multiple USB-A ports 306, then the output voltages of the multiple USB-A ports 306 when supplying power to the outside can be the same or different.

[0050] Optionally, the USB-A protocol module 305 is used to manage and process digital signals of external devices connected to the USB-A port 306, and the voltage conversion circuit 304 is used to transform the output voltage of the battery module 100 to a target output voltage, and output the target output voltage to the USB-A port 306. After the USB-A port 306 is connected to an external device, the USB-A protocol module 305 converts the electrical signal from the USB-A port 306 into a digital signal that can be recognized and processed by a computer or other device, parses and processes the USB communication protocol, ensures normal data transmission and communication flow between devices, monitors errors in the data transmission process, corrects them as much as possible or provides error feedback, and ensures that the data transmission rate meets the negotiation between the device and the host to achieve the best transmission efficiency.

[0051] In some optional embodiments, referring to Figure 5 As shown, the battery module 100 may include a BMS module 102 and a main control circuit 103 in addition to the battery pack 101. The BMS module 102 is electrically connected to the battery pack 101, the main control circuit 103 is electrically connected to the BMS module 102, and the voltage conversion circuit 304 is electrically connected to the BMS module 102 and the main control circuit 103. The USB-A port 306 may also be connected to the main control circuit 103 for communication to feedback port status information to the main control circuit 103. Optionally, the port status information fed back by the USB-A port 306 to the main control circuit 103 may include one or more parameters such as current, voltage, and power.

[0052] In some optional embodiments, referring to Figure 6 As shown, the second port module 300 may include: a power processor 307, a voltage conversion circuit 308 and a Type-C port 309. Among them, the Type-C port 309 is used to connect an external device or a charging power source; the voltage conversion circuit 308 is electrically connected to the Type-C port 309; the power processor 307 is connected between the battery module 100 and the voltage conversion circuit 308, and is used to implement the charge and discharge control of the Type-C port 309. Optionally, the power processor 307 can identify whether to supply power to an external device or to charge the battery module 100, so as to implement the charge and discharge control of the Type-C port 309.

[0053] Optionally, the Type-C port 309 can be communicatively connected to the power processor 307 to feed back port status information (such as one or more parameters such as current, voltage, power, etc.) to the power processor 307.

[0054] Optionally, the Type-C port 309 can be connected to an Emark identification module, and the Emark identification module is electrically connected to the power processor 307. In this case, the Emark identification module can detect and identify the external device connected to the Type-C port 309 and determine its power demand, and then the power processor 307 identifies and confirms the external device according to the Emark identification module, and controls the voltage conversion circuit 308 to output the corresponding voltage.

[0055] In some optional embodiments, a display module may also be provided on the photographic battery. The display module is electrically connected to the battery module 100 and is used to present a battery control interface corresponding to the photographic battery.

[0056] Optionally, the battery control interface corresponding to the photographic battery may display one or more of the following information: the remaining battery power of the photographic battery, the remaining discharge time of the photographic battery, the temperature of the photographic battery, the attribute information of each port of the photographic battery (such as the type of each port, etc.), the power supply status of each port of the photographic battery, abnormal alarm information of the photographic battery, the control corresponding to each port of the photographic battery (the control can be used to turn off the external power supply function of the port, or adjust the external output power of the port, etc.), the switch control of the photographic battery (the switch control can be used to turn on or off the external power supply function of the photographic battery), the status information display mode switching control (the display mode of the battery control interface can be adjusted through the switching control, such as display color, interface layout, etc.), the health status of the photographic battery, the number of times the photographic battery is charged, the number of times the photographic battery is discharged, the remaining life of the photographic battery, the charging threshold of the photographic battery, the discharge threshold of the photographic battery, etc.

[0057] In some optional embodiments, a key module may also be provided on the photographic battery, and the key module is electrically connected to the battery module 100; wherein the key module is used to turn on or off the display module; and / or the key module is used to turn on or off the external power supply of the photographic battery.

[0058] It should be noted that the above-mentioned embodiments can be implemented separately or in combination. For example, in the embodiment of the present application, the second port module 300 can include one or more ports in the above-mentioned embodiment, and the number of each port can be one or more. Specifically, in an embodiment of the present application, Figure 7 As shown, the first port module 200 of the photographic battery may include a D-Tap input / output port and a V-port input / output port; the second port module 300 may include: a DC12V output port, a DC8V output port, a USB-A output port, a Type-C port 1, and a Type-C port 2. It should be noted that Figure 7The various ports shown in the figure are only examples. In the implementation process, any type and any number of ports can be set according to actual needs, and the output voltage of the port can be set according to actual needs.

[0059] Continue to refer to Figure 7 As shown, the DC12V voltage conversion circuit is connected to the DC12V output port through an anti-reverse connection circuit, and the DC8V voltage conversion circuit is connected to the DC8V output port through an anti-reverse connection circuit. Since an anti-reverse connection circuit is provided between the DC8V output port and the DC8V voltage conversion circuit, and between the DC12V output port and the DC12V voltage conversion circuit, it can be ensured that power is output to the DC output port and transmitted to the external load for power supply only under the correct polarity. If the user connects the power adapter incorrectly, the anti-reverse connection circuit will prevent the power from passing through and protect the device and power supply from damage, thereby improving the safety performance of the battery for photography.

[0060] The DC12V voltage conversion circuit and the DC8V voltage conversion circuit are both connected to the main control circuit 103 and the BMS module 102. The DC8V voltage conversion circuit controls the output of 8V voltage to the DC8V output port to adapt to 8V external loads, such as cameras, 8V lamps, digital products, etc.; the DC12V voltage conversion circuit controls the output of 12V voltage to the DC12V output port to adapt to 12V external loads, such as 12V lamps and digital products, etc.

[0061] Continue to refer to Figure 7 As shown, the USB-A voltage conversion circuit is electrically connected to the main control circuit 103, the BMS module 102, and the USB-A protocol processing module respectively, and the USB-A output port is electrically connected to the USB-A protocol processing module; the USB-A protocol processing module is used to manage and process the digital signal of the external load connected to the USB-A output port, and the USB-A voltage conversion circuit is used to transform the output voltage of the battery pack 101 to the target output voltage, and output the target output voltage to the USB-A output port. After the USB-A output port is connected to the external load, the USB-A protocol processing module converts the electrical signal from the USB-A output port into a digital signal that can be recognized and processed by a computer or other device, parses and processes the USB communication protocol, ensures normal data transmission and communication process between devices, monitors errors in the data transmission process, corrects or provides error feedback as much as possible, and ensures that the data transmission rate meets the negotiation between the device and the host to achieve the best transmission efficiency.

[0062] Continue to refer to Figure 7As shown, the DC-DC power processor 1 is electrically connected to the BMS module 102, the main control circuit 103, the DC-DC voltage conversion circuit 1 and the Emark identification module respectively, and the Type-C port 1 is electrically connected to the DC-DC voltage conversion circuit 1 and the Emark identification module respectively; the DC-DC voltage conversion circuit 1 is used to transform the output voltage of the battery pack 101 to the target output voltage, and output the target output voltage to the Type-C port 1, the Emark identification module is used to detect and identify the external device connected to the Type-C port 1, and determine its power supply requirements, the DC-DC power processor 1 identifies and confirms the external device according to the Emark identification module, and controls the DC-DC voltage conversion circuit 1 to output the target output voltage. Specifically, when the Type-C port 1 is connected to an external load, the Emark identification module detects and identifies the external device connected to the Type-C port 1, determines its power supply requirements, and outputs a digital signal to the DC-DC power processor 1. After receiving the signal, the DC-DC power processor 1 transmits the control signal to the DC-DC voltage conversion circuit 1, and controls the DC-DC voltage conversion circuit 1 to output the voltage required by the external device. It can be seen that the technical solution of the embodiment of the present application can automatically identify the needs of external devices and output the corresponding voltage, effectively improving the output and input functions of the Type-C port 1, and realizing the fast discharge function of the Type-C port. At the same time, the Type-C port 1 can not only charge mobile phones, laptops and other devices, but also charge the battery pack 101.

[0063] Optionally, refer to Figure 7 As shown, the photographic battery may also include a Type-C port 2, wherein the DC-DC power processor 2 is electrically connected to the BMS module 102, the main control circuit 103, and the DC-DC voltage conversion circuit 1, respectively, and the Type-C port 2 is electrically connected to the DC-DC voltage conversion circuit 1; the DC-DC voltage conversion circuit 2 is used to transform the output voltage of the battery pack 101 to the target output voltage, and output the target output voltage to the Type-C port 2, thereby realizing the fast discharge function of the Type-C port 2. At the same time, the Type-C port 2 can not only charge mobile phones, laptops and other devices, but also charge the battery pack 101.

[0064] Continue to refer to Figure 7As shown, the D-Tap input and output port and the V-port input and output port are electrically connected to the BMS module 102, respectively. The D-Tap input and output port and the V-port input and output port are mainly used to power photographic equipment and photographic fill-in lights. The BMS module 102 monitors the electrical parameters of the battery pack 101, and controls the input and output of the battery pack 101 according to the electrical parameters of the battery pack 101. When the electrical parameters of the battery pack 101 are abnormal, the connection with the external load is disconnected. When the D-Tap input and output port and the V-port input and output port are connected to the external load, if there is no abnormality, the BMS module 102 controls the output voltage of the battery pack 101, and outputs the output voltage to the D-Tap input and output port and the V-port input and output port, and supplies power to the external load through the D-Tap input and output port and the V-port input and output port.

[0065] Optionally, refer to Figure 7 As shown, the photographic battery may further include a display module, which is electrically connected to the main control circuit 103 and is used to display the electrical parameter information of the battery pack 101 and each port. For example, the charge and discharge status information of each port, as well as the power, voltage, current, power and other information of the battery pack 101 may be displayed, so that the user can better manage and use the battery and avoid running out of power or encountering battery health problems at critical moments.

[0066] Optionally, refer to Figure 7 As shown, the photographic battery may further include a key module, which is electrically connected to the main control circuit 103 and is used to control the opening or closing of the photographic battery, so that the user can better manage and use the battery. Optionally, the key module may also open or close the display module, thereby allowing the user to view or hide the battery status information at any time as needed.

[0067] Optionally, refer to Figure 7 As shown, the photographic battery may further include a Bluetooth module 400, which is electrically connected to the main control circuit 103 and is used to communicate with the battery control terminal. After the Bluetooth module 400 is connected to the battery control terminal, the battery control terminal can read the battery's power, voltage, current, temperature, port voltage and current status and other information, and can control the opening or closing of the photographic battery, as well as control each port, to achieve remote control of the photographic battery.

[0068] It should be noted that the photographic battery in the embodiment of the present application may be a V-mount battery, or may be other types of batteries that are mainly used to power photographic equipment.

[0069] The following combination Figure 8The control method of the photographic battery including the first port module and the second port module in the embodiment of the present application is described in detail. The control method of the photographic battery can be executed by the main control circuit in the photographic battery, or can also be executed by the battery control terminal connected to the photographic battery in communication. Figure 8 As shown, the control method of the photographic battery at least includes steps S810 to S820, which are described in detail as follows:

[0070] In step S810, the total output power of the photographic battery and the power supply status of the first port module and the second port module are obtained.

[0071] In some optional embodiments, the power supply status of the first port module and the second port module can be obtained through the electrical connection circuit between each port included in the first port module and the second port module. Optionally, the power supply status may include whether it is in a power supply state. In addition to obtaining the power supply status, one or more parameters such as power supply voltage, power supply current, output power, etc. can also be obtained.

[0072] In step S820, if the first port module and the second port module are both in the external power supply state and the total output power of the photographic battery is higher than the first power threshold, the port in the second port module is controlled to be powered off so that the total output power of the photographic battery is lower than the first power threshold.

[0073] In this embodiment, when the total output power of the photographic battery exceeds a preset first power threshold, one or some ports in the second port module are controlled to be powered off, thereby effectively preventing the occurrence of overload of the photographic battery, avoiding the risk of battery overheating, performance degradation or even damage due to excessive power, and ensuring that the photographic equipment powered by the first port module has priority in obtaining sufficient power support.

[0074] In some optional embodiments, when controlling the ports in the second port module to be powered off, the ports in the second port module may be controlled to be powered off in sequence according to a set sequence until the total output power of the photographic battery is lower than the first power threshold. The set sequence includes any one of the following: the sequence of external power supply start time from late to early, and the power-off sequence set by the user.

[0075] For example, the second port module includes a DC8V output port and a DC12V output port, and the DC12V output port is first connected to an external device for power supply, and the DC8V output port is later connected to an external device for power supply. When controlling the ports in the second port module to be powered off, the DC8V output port can be controlled to be powered off first. If the total output power of the photographic battery is still higher than the first power threshold, the DC12V output port can be controlled to be powered off.

[0076] Optionally, the power-off sequence customized by the user may be set according to actual needs. For example, a setting interface may be provided to the user, and the user may adjust the power-off sequence of each port on the setting interface.

[0077] In some optional embodiments, if the total output power of the photographic battery is still higher than the first power threshold after all ports in the second port module are powered off, the output current of the photographic battery is obtained, and when the output current is higher than the set current threshold, the photographic battery is controlled to stop supplying power to the outside. The technical solution of this embodiment effectively prevents overheating, damage, or even safety accidents that may be caused by the photographic battery continuing to work under high current conditions, further ensures the safety and stability of the photographic battery, reduces the risk of premature aging of the battery due to long-term overload work, prolongs the service life of the battery, and reduces the frequency and cost of replacing the battery.

[0078] In some optional embodiments, if the first port module is not in an external power supply state, the second port module is in an external power supply state, and the total output power of the photographic battery is higher than the second power threshold, then the ports in the second port module are controlled to be powered off in a set order until the total output power of the photographic battery is lower than the second power threshold. The technical solution of this embodiment can also effectively prevent the occurrence of overload of the photographic battery, avoiding the risk of battery overheating, performance degradation or even damage due to excessive power.

[0079] In some optional embodiments, a display module is also provided on the photographic battery, and the display module is used to present a battery control interface corresponding to the photographic battery, so that the power adjustment instruction set by the user for the designated port in the second port module can be received through the battery control interface, and then the output power of the designated port can be controlled according to the power adjustment instruction. The technical solution of this embodiment allows the user to adjust the power of the designated port in the second port module through an intuitive and easy-to-use battery control interface, which not only meets the specific requirements of different devices or application scenarios for power output, but also improves the satisfaction of user experience. At the same time, by adjusting the output power of the port, it can ensure that the connected device operates within the optimal power range, which not only avoids energy waste, but also reduces the risk of device damage or performance degradation due to power mismatch, which is of great significance for extending battery life, protecting equipment, and improving the stability and reliability of the overall system.

[0080] In some optional embodiments, a Bluetooth module is also provided on the photographic battery, and the Bluetooth module is used to communicate with the battery control terminal. The battery control terminal displays a battery control interface corresponding to the photographic battery. Then, the battery status information of the photographic battery can be sent to the battery control terminal via the Bluetooth module, so that the battery control terminal presents the battery status information on the battery control interface, and then receives the control instructions triggered by the user on the battery control interface through the Bluetooth module, so as to control the charging and discharging process of the photographic battery based on the control instructions.

[0081] The technical solution of the above-mentioned embodiment enables the battery status information to be sent to the battery control terminal in real time through the Bluetooth module and presented intuitively on the battery control interface, so that the user can grasp the real-time status of the battery at any time, so as to reasonably arrange the shooting plan and avoid interrupting the shooting due to insufficient battery power. At the same time, the control instructions triggered by the user on the battery control interface (such as charging start, charging stop, discharge mode adjustment, etc.) are quickly transmitted to the photographic battery through the Bluetooth module, realizing the precise control of the charging and discharging process of the photographic battery and improving the control efficiency of the photographic battery. The graphical display and intuitive operation buttons on the battery control interface also lower the threshold for use, so that even non-professionals can easily get started. This portable operation method not only improves the user's work efficiency, but also enhances the user's experience.

[0082] In some optional embodiments, the control instructions may include power adjustment instructions for a specified port in the second port module, and the output power of the specified port may be controlled according to the power adjustment instructions. This can meet the specific requirements of different devices or application scenarios for power output and realize personalized settings for different ports.

[0083] In some optional embodiments, the battery status information displayed in the battery control interface may include at least one of the following information: the remaining battery power of the photographic battery, the remaining discharge time of the photographic battery, the temperature of the photographic battery, the attribute information of each port of the photographic battery, the power supply status of each port of the photographic battery, the abnormal alarm information of the photographic battery, the controls corresponding to each port of the photographic battery, the switch control of the photographic battery, the status information display mode switching control, the health status of the photographic battery, the number of times the photographic battery is charged, the number of times the photographic battery is discharged, the remaining life of the photographic battery, the charging threshold of the photographic battery, and the discharge threshold of the photographic battery.

[0084] In some optional embodiments, if it is detected that there is a target port in the second port module whose output power is higher than the third power threshold, the target port is controlled to be powered off. The technical solution of this embodiment can effectively avoid the risk of equipment damage caused by excessive port output power, which is crucial for protecting the external device connected to the port and the photographic battery itself, ensuring the safety and stability of the device. It can also achieve precise control of the output power of each port, and realize refined management of the photographic battery.

[0085] In some optional embodiments, if a shutdown instruction is received for the target port in the second port module, the target port is controlled to be powered off. The technical solution of this embodiment enables the system to quickly identify and respond to the shutdown instruction and accurately control the power-off process of the specified target port. Optionally, the user can issue a shutdown instruction through the battery control terminal or a related interface, and the power-off status of the port can also be displayed in real time on the control interface. This intuitive operation feedback enhances the user's sense of control and improves the overall user experience.

[0086] In a specific application scenario, refer to Figure 7 As shown, assuming that the second port module includes a DC12V output port, a DC8V output port, a USB-A output port, a Type-C port 1, and a Type-C port 2, these ports and the first port module are all supplying power to the outside, and the total output power is greater than 125W (the value is only an example), then the display module of the photographic battery and / or the interface of the battery control terminal may prompt that the remaining power is insufficient and the power is about to be cut off. The power cut follows the principle of first cutting off the controllable port and then cutting off the uncontrollable port. For the controllable port: follow the principle of cutting off the power first after the last insertion, and start cutting off the power from the last inserted port. If the output power is still greater than 125W after all the controllable ports are disconnected, the battery can continue to supply power. If the output current exceeds 14A (the value is only an example), the photographic battery performs overcurrent protection, and the BMS module cuts off the entire battery output to the outside. At this time, the photographic battery is powered off as a whole. In this case, the display module of the photographic battery can continue to display, or it can be turned off and no longer display, and it can resume work after reconnecting to the device.

[0087] Assuming that the first port module does not supply power to the outside, and only the DC12V output port, DC8V output port, USB-A output port, Type-C port 1 and Type-C port 2 in the second port module are supplying power to the outside, and the total output power is greater than 110W (the value is only an example), then the display module of the photographic battery and / or the interface of the battery control terminal may prompt that the remaining power is insufficient and the power is about to be cut off. The power is cut off according to the principle of powering off the last inserted port first, starting from the last inserted port, until the output power is less than 110W, the prompt information on the display module of the photographic battery and / or the interface of the battery control terminal disappears, and the battery operation returns to normal.

[0088] Optionally, in an embodiment of the present application, the user can also control one or more parameters of the closing, opening and output power of each port through the display module of the photographic battery and / or the interface of the battery control terminal. This can achieve effective control of the photographic battery, improve the safety of use and power supply efficiency of the photographic battery while expanding the use scenarios of the photographic battery.

[0089] The following describes an embodiment of the device of the present application, which can be used to execute the control method of the photographic battery in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the control method of the photographic battery in the above embodiment of the present application.

[0090] Fig. 9 A block diagram of a control device for a photographic battery according to an embodiment of the present application is shown, wherein the photographic battery includes a first port module for supplying power to photographic equipment and a second port module for supplying power to an external device. The control device for a photographic battery can be applied to a main control circuit in a photographic battery, or can also be applied to a battery control terminal that is communicatively connected to the photographic battery.

[0091] Reference Fig. 9 As shown, a control device 900 for a photographic battery according to an embodiment of the present application includes: an acquisition unit 902 and a control unit 904 .

[0092] Among them, the acquisition unit 902 is configured to obtain the total output power of the photographic battery and the power supply status of the first port module and the second port module; the control unit 904 is configured to control the port in the second port module to be powered off if the first port module and the second port module are both in an external power supply state and the total output power of the photographic battery is higher than a first power threshold, so that the total output power of the photographic battery is lower than the first power threshold.

[0093] In some embodiments of the present application, based on the aforementioned scheme, the control unit 904 is configured to: control the ports in the second port module to be powered off in sequence according to a set order until the total output power of the photographic battery is lower than the first power threshold; wherein the set order includes any one of the following methods: the order of the start time of external power supply from late to early, and the power-off order set by the user.

[0094] In some embodiments of the present application, based on the aforementioned scheme, the control unit 904 is also configured to: if after all ports in the second port module are powered off, the total output power of the photographic battery is still higher than the first power threshold, then obtain the output current of the photographic battery; when the output current is higher than the set current threshold, control the photographic battery to stop supplying external power.

[0095] In some embodiments of the present application, based on the aforementioned scheme, the control unit 904 is further configured as follows: if the first port module is not in an external power supply state, the second port module is in an external power supply state, and the total output power of the photographic battery is higher than a second power threshold, then control each port in the second port module to be powered off in a set order until the total output power of the photographic battery is lower than the second power threshold.

[0096] In some embodiments of the present application, based on the aforementioned scheme, a display module is also provided on the photographic battery, and the display module is used to present a battery control interface corresponding to the photographic battery; the control unit 904 is also configured to: receive a power adjustment instruction set by the user for a designated port in the second port module through the battery control interface; and control the output power of the designated port according to the power adjustment instruction.

[0097] In some embodiments of the present application, based on the aforementioned scheme, a Bluetooth module is also provided on the photographic battery, and the Bluetooth module is used to communicate with the battery control terminal, and a battery control interface corresponding to the photographic battery is displayed on the battery control terminal; the control unit 904 is also configured to: send the battery status information of the photographic battery to the battery control terminal via the Bluetooth module, so that the battery control terminal presents the battery status information on the battery control interface; receive the control instructions triggered by the user on the battery control interface via the Bluetooth module; and control the charging and discharging process of the photographic battery based on the control instructions.

[0098] In some embodiments of the present application, based on the aforementioned solution, the control instruction includes a power adjustment instruction for a designated port in the second port module; and the control unit 904 is configured to: control the output power of the designated port according to the power adjustment instruction.

[0099] In some embodiments of the present application, based on the aforementioned scheme, the battery status information includes at least one of the following information: the remaining battery power of the photographic battery, the remaining discharge time of the photographic battery, the temperature of the photographic battery, the attribute information of each port of the photographic battery, the power supply status of each port of the photographic battery, the abnormal alarm information of the photographic battery, the controls corresponding to each port of the photographic battery, the switch control of the photographic battery, the status information display mode switching control, the health status of the photographic battery, the number of times the photographic battery is charged, the number of times the photographic battery is discharged, the remaining life of the photographic battery, the charging threshold of the photographic battery, and the discharge threshold of the photographic battery.

[0100] In some embodiments of the present application, based on the above solution, the control unit 904 is further configured to: if it is detected that there is a target port in the second port module whose output power is higher than a third power threshold, control the target port to be powered off.

[0101] In some embodiments of the present application, based on the above solution, the control unit 904 is further configured to: if a shutdown instruction for the target port in the second port module is received, control the target port to be powered off.

[0102] Fig.10 A schematic diagram of the structure of a computer system of an electronic device suitable for implementing an embodiment of the present application is shown. The electronic device may be the main control circuit in the photographic battery in the aforementioned embodiment, or may be a battery control terminal that is communicatively connected to the photographic battery.

[0103] It should be noted that Fig.10 The computer system 1000 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0104] like Fig.10As shown, the computer system 1000 may include a central processing unit (CPU) 1001, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1002 or the program loaded from the storage part 1008 to the random access memory (RAM) 1003, such as executing the method described in the above embodiment. In the RAM 1003, various programs and data required for system operation are also stored. The CPU 1001, the ROM 1002 and the RAM 1003 are connected to each other through the bus 1004. The input / output (I / O) interface 1005 is also connected to the bus 1004.

[0105] The following components can be connected to the I / O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 1007 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to the I / O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1010 as needed, so that a computer program read therefrom is installed into the storage section 1008 as needed.

[0106] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program is used to perform the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part 1009, and / or installed from a removable medium 1011. When the computer program is executed by a central processing unit (CPU) 1001, various functions defined in the system of the present application are executed.

[0107] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a computer program, which may be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a computer-readable computer program is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0108] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of the boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and a computer program.

[0109] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0110] As another aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more computer programs, and when the above one or more computer programs are executed by an electronic device, the electronic device implements the method described in the above embodiment.

[0111] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0112] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable an electronic device to execute the method according to the implementation methods of the present application.

[0113] For example, the electronic device may be the main control circuit in the photographic battery in the aforementioned embodiment, or a battery control terminal connected to the photographic battery in communication, then the electronic device may execute Figure 8 The control method of the photographic battery shown in .

[0114] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0115] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for controlling a photographic battery, characterized in that: The photographic battery comprises a first port module for supplying power to photographic equipment and a second port module for supplying power to an external device. The control method comprises: Acquire the total output power of the photographic battery and the power supply status of the first port module and the second port module; If the first port module and the second port module are both in an external power supply state, and the total output power of the photographic battery is higher than a first power threshold, the port in the second port module is controlled to be powered off so that the total output power of the photographic battery is lower than the first power threshold.

2. The method for controlling a photographic battery according to claim 1, characterized in that: Controlling the port in the second port module to be powered off so that the total output power of the photographic battery is lower than the first power threshold includes: Controlling each port in the second port module to be powered off in sequence according to a set order until the total output power of the photographic battery is lower than the first power threshold; The setting sequence includes any one of the following modes: the sequence of external power supply start time from late to early, and the power-off sequence set by the user.

3. The control method of a photographic battery according to claim 1, characterized in that: The control method further comprises: If the total output power of the photographic battery is still higher than the first power threshold after all ports in the second port module are powered off, then obtaining the output current of the photographic battery; When the output current is higher than a set current threshold, the photographic battery is controlled to stop supplying power to the outside.

4. The control method of a photographic battery according to claim 1, characterized in that: The control method further comprises: If the first port module is not in an external power supply state, the second port module is in an external power supply state, and the total output power of the photographic battery is higher than a second power threshold, each port in the second port module is controlled to be powered off in a set order until the total output power of the photographic battery is lower than the second power threshold.

5. The control method of a photographic battery according to claim 1, characterized in that: The photographic battery is also provided with a display module, and the display module is used to present a battery control interface corresponding to the photographic battery; the control method further includes: Receiving, through the battery control interface, a power adjustment instruction set by a user for a designated port in the second port module; The output power of the designated port is controlled according to the power adjustment instruction.

6. The method for controlling a photographic battery according to claim 1, wherein: The photographic battery is also provided with a Bluetooth module, and the Bluetooth module is used to communicate with a battery control terminal, and the battery control terminal displays a battery control interface corresponding to the photographic battery; the control method further includes: Sending the battery status information of the photographic battery to the battery control terminal through the Bluetooth module, so that the battery control terminal presents the battery status information on the battery control interface; Receiving a control instruction triggered by a user on the battery control interface through the Bluetooth module; The charging and discharging process of the photographic battery is controlled based on the control instruction.

7. The method for controlling a photographic battery according to claim 6, wherein: The control instruction includes a power adjustment instruction for a specified port in the second port module; The charging and discharging process of the photographic battery is controlled based on the control instruction, including: controlling the output power of the designated port according to the power adjustment instruction.

8. The method for controlling a photographic battery according to claim 6, wherein: The battery status information includes at least one of the following information: The remaining battery power of the photographic battery, the remaining discharge time of the photographic battery, the temperature of the photographic battery, the attribute information of each port of the photographic battery, the power supply status of each port of the photographic battery, the abnormal alarm information of the photographic battery, the controls corresponding to each port of the photographic battery, the switch control of the photographic battery, the status information display mode switching control, the health status of the photographic battery, the number of times the photographic battery has been charged, the number of times the photographic battery has been discharged, the remaining life of the photographic battery, the charging threshold of the photographic battery, and the discharging threshold of the photographic battery.

9. The method for controlling a photographic battery according to any one of claims 1 to 8, characterized in that: The control method further comprises: If it is detected that there is a target port in the second port module whose output power is higher than a third power threshold, controlling the target port to be powered off; and / or If a shutdown instruction for the target port in the second port module is received, the target port is controlled to be powered off.

10. A control device for a photographic battery, characterized in that: The photographic battery comprises a first port module for supplying power to photographic equipment and a second port module for supplying power to an external device, and the control device comprises: an acquisition unit configured to acquire the total output power of the photographic battery and the power supply status of the first port module and the second port module; The control unit is configured to control the port in the second port module to be powered off if both the first port module and the second port module are in an external power supply state and the total output power of the photographic battery is higher than a first power threshold, so that the total output power of the photographic battery is lower than the first power threshold.

Images