Power supply control system and camera apparatus

Abstract

The utility model relates to a power supply control system and camera equipment, and the system comprises a power supply switching circuit, a switching setting module, and a power input interface. The power supply input end of the power supply switching module is respectively connected with each power supply input interface, and the control end of the power supply switching module is connected with the first end of the micro-control unit; the potential acquisition modules are in one-to-one connection with the power input interfaces; the input end of the switching setting module is connected with the user interaction interface, and the output end of the switching setting module is connected with the third end of the micro-control unit; the switching setting module is used for outputting user-defined power switching conditions and power switching signals to the micro-control unit; the micro-control unit is used for outputting a power switching signal to the power switching module. According to the invention, switching setting conditions self-defined by a user and power supply states acquired by the potential acquisition module can be acquired based on an external user interaction interface, and different power supplies are switched and selected, so that power supply control can be defined according to different application scenes.

Description

Technical Field

[0001] The present application relates to the field of power supply control circuits, and in particular to power supply control systems and camera equipment. Background Art

[0002] With the promotion and application of camera systems, many camera devices are currently deployed in harsh power supply environments. In order to deal with the power supply stability problem of camera devices in different application scenarios, a multi-power input power supply method is usually used to power the camera devices.

[0003] Among them, in the power supply mode based on multiple power inputs, different power switches are often used to control the access of different power sources, and different power sources are connected by switching on different power switches. This method has a complex switching process and cannot realize the definability of power supply control according to different application scenarios.

[0004] There is no effective solution to the problem in related technologies that power supply control cannot be defined for different application scenarios. Utility Model Content

[0005] In this embodiment, a power control system and a camera device are provided to solve the problem in the related art that power supply control cannot be defined for different application scenarios.

[0006] In a first aspect, a power supply control system is provided in this embodiment, including a power supply switching circuit, a switching setting module and at least two power supply input interfaces; wherein:

[0007] The power supply switching circuit includes a power supply switching module, a micro control unit and at least two potential acquisition modules;

[0008] The power input end of the power switching module is connected to each of the power input interfaces respectively, and the control end of the power switching module is connected to the first end of the micro control unit;

[0009] The potential acquisition modules are connected one by one to the power input interface; wherein the input end of each potential acquisition module is connected to one power input interface, and the output end of each potential acquisition module is connected to the second end of the micro control unit;

[0010] The input end of the switching setting module is connected to the user interaction interface, and the output end of the switching setting module is connected to the third end of the micro control unit;

[0011] The switching setting module is used to output a user-defined power switching condition and a power switching signal based on the power switching condition to the micro control unit;

[0012] The micro control unit is used to output a power switching signal to the power switching module.

[0013] In some embodiments, the power switching module includes at least two diodes and at least two electronic switches; the diodes are connected to the power input interface and the electronic switches one by one respectively; wherein:

[0014] The anode of each diode is connected to one of the power input interfaces, and the cathode of each diode is connected to one end of one of the electronic switches;

[0015] The control end of the electronic switch is connected to the first end of the micro control unit.

[0016] In some of the embodiments, the electronic switch is normally in a closed state.

[0017] In some of the embodiments, the switching setting module is a camera main system; a signal input end of the camera main system is connected to the user interaction interface, and a signal output end of the camera main system is connected to the third end of the micro control unit.

[0018] In some of the embodiments, the power control system also includes a system power module; the input end of the system power module is connected to the power output end of the power switching module, and the output end of the system power module is connected to the power supply end of the camera main system.

[0019] In some of the embodiments, the control terminal of the system power module is connected to the fourth terminal of the micro control unit.

[0020] In some embodiments, the power supply switching circuit further includes a clock chip; an output terminal of the clock chip is connected to a fifth terminal of the micro control unit.

[0021] In some embodiments, the power supply switching circuit also includes a light-load power supply module; the input end of the light-load power supply module is connected to the power output end of the power switching module, and the output end of the light-load power supply module is connected to the sixth end of the micro control unit.

[0022] In some embodiments, at least two of the power input interfaces are connected to power supplies of different specifications.

[0023] In a second aspect, a camera device is provided in this embodiment, comprising the power control system described in the first aspect.

[0024] Compared with the related art, the present embodiment provides a power control system and a camera device. The power control system includes a power supply switching circuit, a switching setting module and at least two power input interfaces; wherein: the power supply switching circuit includes a power supply switching module, a micro control unit and at least two potential acquisition modules; the power input end of the power supply switching module is respectively connected to each power input interface, and the control end of the power supply switching module is connected to the first end of the micro control unit; the potential acquisition module is connected to the power input interface one by one; wherein, the input end of each potential acquisition module is connected to a power input interface, and the output end of each potential acquisition module is connected to the second end of the micro control unit; the input end of the switching setting module is connected to the user interaction interface, and the output end of the switching setting module is connected to the third end of the micro control unit; the switching setting module is used to output a user-defined power switching condition and a power switching signal based on the power switching condition to the micro control unit; the micro control unit is used to output a power switching signal to the power switching module. It is possible to obtain a user-defined switching setting condition based on an external user interaction interface, and switch and select different power supplies based on the micro control unit, the switching setting condition, and the power state collected by the potential acquisition module, so that the power supply control can be defined for different application scenarios.

[0025] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 is a schematic diagram of the structure of the power supply control system provided in this embodiment;

[0028] Figure 2 It is a structural schematic diagram of a dual DC power supply sharing system in the related art;

[0029] Figure 3 is a structural schematic diagram of another power supply control system provided by this embodiment;

[0030] Figure 4 This is a schematic diagram of the structure of another source control system provided by this embodiment. DETAILED DESCRIPTION

[0031] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0032] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of 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. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0033] In this embodiment, a power supply control system is provided. Figure 1 Schematic diagram of the structure of the power supply control system 10 provided in this embodiment. Figure 1 As shown, the power control system 10 includes a power supply switching circuit 11, a switching setting module 121 and at least two power input interfaces; wherein:

[0034] The power supply switching circuit 11 includes a power switching module 111, a micro control unit and at least two potential acquisition modules; the power input end of the power switching module 111 is respectively connected to each power input interface, and the control end of the power switching module 111 is connected to the first end of the micro control unit; the potential acquisition modules are connected to the power input interfaces one by one; wherein, the input end of each potential acquisition module is connected to a power input interface, and the output end of each potential acquisition module is connected to the second end of the micro control unit; the input end of the switching setting module 121 is connected to the user interaction interface, and the output end of the switching setting module 121 is connected to the third end of the micro control unit; the switching setting module 121 is used to output a user-defined power switching condition to the micro control unit, and a power switching signal based on the power switching condition; the micro control unit is used to output a power switching signal to the power switching module 111.

[0035] Specifically, in the power supply switching circuit 11, the power supply switching module 111 is used to complete the switching of different power supplies so as to use different power supplies to power the camera device. Figure 1 In the embodiment, the power switching module 111 is connected to the first power input interface J1 and the second power input interface J2 respectively. Specifically, the power switching module 111 can be composed of components such as switches, diodes, resistors or field effect transistors. Microcontroller Unit (MCU) is abbreviated as MCU. Figure 1 It is represented as a microcontroller unit U6, which is also called a single-chip microcomputer or a single-chip microcomputer. The frequency and specifications of the central processing unit (CPU) are appropriately reduced, and peripheral interfaces such as memory, timer, USB, A / D conversion, UART, PLC, DMA, and even LCD drive circuits are integrated on a single chip.

[0036] In this embodiment, the microcontroller unit is used to send a power switching signal to the power switching module 111 to control the power switching module 111 to implement power switching. The power switching signal is generated by the switching setting module 121 after information processing, and is sent to the microcontroller unit by the switching setting module 121. Among them, the power switching signal can be a power switching information instruction. The potential acquisition module is used to collect status information of each connected power supply through the power input interface, such as power supply power, voltage, and whether the power supply is connected. Specifically, the potential acquisition module can be composed of hardware components such as sensors and analog-to-digital converters to realize the collection of power status information. The number of power input interfaces is at least two, and one power input interface is connected to one power supply. The specific number of power supplies that can be connected can be set according to the needs of the actual application scenario. It can be understood that the number of potential acquisition modules can be set accordingly according to the number of power input interfaces. For example Figure 1 In the embodiment, the input end of the potential acquisition module U1 is connected to the first power input interface J1, the input end of the potential acquisition module U2 is connected to the second power input interface J2, and the output ends of the potential acquisition module U1 and the potential acquisition module U2 are both connected to Figure 1 The potential acquisition module acquires the state information of the corresponding power supply based on the connection with the power input interface, and transmits the acquired state information of the corresponding power supply to the micro control unit based on the connection with the micro control unit.

[0037] In addition, in the present embodiment, a switching setting module 121 is also provided. Specifically, the switching setting module 121 may be a circuit structure having a communication function and an information processing function, such as a camera main system of the camera device itself, or other data processing devices having computing power and storage space. The input end of the switching setting module 121 is connected to the user interaction interface, so as to obtain the power switching condition input by the user based on the user interaction interface. Afterwards, the switching setting module 121 processes and judges the information of the user-defined power switching condition in combination with the power status information fed back by the micro-control unit, and transmits the power switching instruction information after the judgment to the micro-control unit based on the connection with the micro-control unit, and then the micro-control unit controls the power switching module 111 to perform power switching control.

[0038] In addition, the microcontroller unit can also be connected to more modules, so that on the basis of obtaining the power state information collected by the potential collection module, other information is collected based on the user-defined power switching conditions, and then sent to the switching setting module 121 in combination with the power state information, and the power switching module 111 is controlled to perform power switching based on the power switching instruction information output by the switching setting module 121 after information processing. For example, the time information is combined with the power state information, and the power switching is controlled based on the user-defined power switching conditions.

[0039] Next, Figure 1 As an example, the process of realizing power switching of the power control system of this embodiment is described. The potential acquisition module U1 acquires the status information of the power connected to the first power input interface J1; the potential acquisition module U2 acquires the status information of the power connected to the second power input interface J2. After that, the potential acquisition module U1 and the potential acquisition module U2 respectively send the status information collected by each to the micro control unit U6. The user inputs the customized power switching condition through the user interaction interface J3. For example, use a power supply with a voltage within a preset voltage range, or use a power supply with a power higher than a preset power. After the switching setting module 121 processes the information of the power switching condition input by the user according to the hardware characteristics of the micro control unit U6, it is sent to the micro control unit U6, and then the micro control unit U6 exchanges the status information corresponding to each power collected to the switching setting module 121. Based on the power switching condition set by the user and the status information corresponding to each power supply, the switching setting module 121 determines the power supply that needs to be selected for power supply, and exchanges the information to the micro control unit U6 for power switching control. For example, it is determined that the power supply connected to the first power input interface J1 is used for power supply. The micro control unit U6 sends a power switching signal to the power switching module 111. For example, a disconnect control signal may be sent to the electronic switch corresponding to the second power input interface J2 in the power switching module 111, so that the power control system uses the power corresponding to the first power input interface J1 for power supply.

[0040] In the related art, different power switches are often used to connect different power supplies. Different power switches are switched on to connect different power supplies. Figure 2 FIG. 1 is a schematic diagram of a dual DC power supply sharing system in the related art. Figure 2 As shown, in the related art, two power switches K3 and K4 are used to control the access of two power supplies P1 and P2. K3 and K4 are not turned on at the same time. During the switching process, switch K5 is turned on to ensure that the load R1 is not disconnected. In addition, K5 is connected to the power supplies P1 and P2 through diodes D3 and D4. Therefore, in the related art, the switching process is complicated, and it is impossible to judge the power state and realize power switching based on the power state. It is also impossible to realize user-defined power switching according to different power switching conditions input by the user, so the power switching cannot be defined.

[0041] In this embodiment, the potential acquisition module collects the status information of each power supply, and uses the user interaction interface to obtain the user-defined power switching conditions. Then, based on the information interaction between the switching setting module 121 and the micro control unit, the micro control unit outputs a power switching signal to the power switching module 111, so that the power switching can be defined and the power switching can be realized based on the power status and user needs, thereby increasing the application scenarios applicable to the power switching control and improving the user experience.

[0042] The power control system 10 provided in this embodiment can obtain user-defined switching setting conditions based on an external user interaction interface, and use a microcontroller unit to switch and select different power supplies based on the switching setting conditions and the power status collected by the potential acquisition module, thereby realizing definable power supply control for different application scenarios.

[0043] In one embodiment, the power switching module 111 includes at least two diodes and at least two electronic switches; the diodes are connected to the power input interface and the electronic switch one by one respectively; wherein: the positive electrode of each diode is connected to a power input interface, and the negative electrode of each diode is connected to one end of an electronic switch; the control end of the electronic switch is connected to the first end of the micro control unit.

[0044] Specifically, Figure 3 FIG. 3 is a schematic diagram of the structure of another power supply control system 30 provided in this embodiment. Figure 3 As shown, in Figure 1On the basis, the power switching module 111 includes a diode D1, a diode D2, an electronic switch K1 and an electronic switch K2. Among them, the positive electrode of the diode D1 is connected to the first power input interface J1, the negative electrode of the diode D1 is connected to one end of the electronic switch K1, and the other end of the electronic switch K1 is connected to the circuit structure that needs power supply. The positive electrode of the diode D2 is connected to the first power input interface J2, the negative electrode of the diode D2 is connected to one end of the electronic switch K2, and the other end of the electronic switch K2 is connected to the circuit structure that needs power supply. It can be understood that in order to clearly describe the structure of the power switching module of this embodiment, Figure 3 In this paper, two diodes and two electronic switches are used as examples. Figure 3 The structure shown can also be provided with more diodes and electronic switches according to more power input interfaces, and the present embodiment does not limit the number of diodes and electronic switches. The present embodiment introduces diodes into the circuit structure, and when multiple power supplies are connected at the same time, based on the anti-reverse function of the diode, the power control system 30 will take the high-potential power supply to supply power to the subsequent circuit. Based on this, it is possible to avoid the high-potential power supply from crosstalking the low-potential power supply. In addition, the microcontroller unit is connected to the control end of the electronic switch, so as to control the on and off of the electronic switch, thereby realizing the switching of the power supply.

[0045] In one embodiment, the electronic switch is normally in a closed state. Figure 3 Take the example for explanation. The electronic switch K1 and the electronic switch K2 are normally closed. Due to the existence of the anti-reverse diode D1 and the anti-reverse diode D2, when multiple power supplies are connected to the power control system 30, the power control system 30 will take the power supply with a high potential to power the subsequent circuit. After the user inputs the customized power switching condition, the switching setting module 121 will determine the selected power supply according to the power switching condition, at least in combination with the state information of the power supply collected by the potential acquisition module, so that the micro control unit U6 controls the electronic switch corresponding to the unselected power supply to be disconnected. For example, the micro control unit U6 needs to use the power supply corresponding to the first power input interface J1 for power supply, and then controls the electronic switch K2 to be disconnected. Based on this, the present embodiment can realize power switching based on the connection relationship between the micro control unit, the electronic switch and the diode, and allow multiple power supplies with different voltages to be connected together.

[0046] Additionally, in one embodiment, the switch setting module 121 is a camera main system; a signal input terminal of the camera main system is connected to the user interaction interface, and a signal output terminal of the camera main system is connected to the third terminal of the micro control unit.

[0047] Figure 4 FIG. 4 is a schematic diagram of the structure of another source control system 40 provided in this embodiment. Figure 4 As shown, Figure 4 exist Figure 3Based on the above, the camera main system U5 is used as the switching setting module 121. The camera main system U5 is connected to the user interaction interface J3, receives the user-defined power switching conditions input by the user, performs information processing, and then transmits the processed data to the micro control unit U6 based on the communication with the micro control unit U6. In this embodiment, by using the camera main system as the switching setting module to process the power switching conditions input by the user, it is possible to reuse the existing structure of the camera device itself, thereby avoiding the introduction of additional data processing devices for information processing, thereby reducing the complexity of the system and the hardware cost.

[0048] In one embodiment, the power control system 40 further includes a system power module; the input end of the system power module is connected to the power output end of the power switching module 111, and the output end of the system power module is connected to the power supply end of the camera main system. Figure 4 In the embodiment, the system power module U4 is connected to the electronic switch K1 and the electronic switch K2, so that the power corresponding to the electronic switch in the closed state can supply power to the camera main system U5 through the system power module U4. Figure 4 In the embodiment, the power control system 40 is divided into a power supply switching circuit 11 and a main system circuit 12 which are independent of each other, wherein the main system circuit 12 includes a switching setting module 121 (i.e. Figure 4 Therefore, in this embodiment, the power supply switching circuit and the main system circuit are independently set, which can realize the controllable setting of the system circuit power supply.

[0049] In one embodiment, the control terminal of the system power module is connected to the fourth terminal of the micro control unit. Figure 4 As shown, the enable terminal (EN terminal) of the micro control unit U6 is connected to the control terminal of the system power module U4, so the micro control unit can turn off the system power module U4, thereby achieving low power consumption of the camera device.

[0050] Additionally, in one embodiment, the power supply switching circuit 11 further includes a clock chip; the output terminal of the clock chip is connected to the fifth terminal of the micro control unit.

[0051] like Figure 4As shown, a clock chip U7 (RTC chip) can be introduced into the power supply switching circuit 11, so as to support the user to add time information into the power supply switching condition. For example, the duration of power supply of different power supplies can be set as the power supply switching condition, so that the micro control unit U6 can obtain time information based on the connection with the clock chip U7, and thereby realize the power supply switching control. Among them, the power supply state information collected by the potential acquisition module and the clock information of the clock chip U7 can be combined at the same time to realize the power supply switching control according to the power supply switching condition, or the power supply state information provided by the potential acquisition module can be used alone, or the clock information can be used alone for power supply switching control, which can be determined according to the power supply switching condition set by the user.

[0052] In this embodiment, by introducing the clock chip U7 into the power supply switching circuit 11, power switching control is performed based on the clock information provided by the clock chip U7, which can be combined with the potential acquisition module to achieve diversification of power switching conditions.

[0053] In addition, in one embodiment, the power supply switching circuit 11 further includes a light-load power supply module; the input end of the light-load power supply module is connected to the power output end of the power switching module, and the output end of the light-load power supply module is connected to the sixth end of the micro control unit. Figure 1 As shown, the light-load power supply module U3 is connected to the micro control unit U6 to supply power to the micro control unit U6.

[0054] In particular, in one embodiment, at least two power input interfaces are connected to power supplies of different specifications. Figure 1 The first power input interface J1 and the second power input interface J2 can be connected to power supplies of different specifications, so as to cope with different usage scenarios and different power requirements and improve the adaptability of the power control system.

[0055] In one embodiment, a camera device is further provided, comprising the power control system provided by any of the above embodiments.

[0056] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and will not be repeated in this embodiment.

[0057] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0058] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0059] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0060] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0061] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A power control system, It is characterized in that It includes a power supply switching circuit, a switching setting module and at least two power input interfaces; wherein: The power supply switching circuit includes a power supply switching module, a micro control unit and at least two potential acquisition modules; The power input end of the power switching module is connected to each of the power input interfaces respectively, and the control end of the power switching module is connected to the first end of the micro control unit; The potential acquisition modules are connected one by one to the power input interface; wherein the input end of each potential acquisition module is connected to one power input interface, and the output end of each potential acquisition module is connected to the second end of the micro control unit; The input end of the switching setting module is connected to the user interaction interface, and the output end of the switching setting module is connected to the third end of the micro control unit; The switching setting module is used to output a user-defined power switching condition and a power switching signal based on the power switching condition to the micro control unit; The micro control unit is used to output a power switching signal to the power switching module.

2. The power control system according to claim 1, It is characterized in that The power switching module includes at least two diodes and at least two electronic switches; the diodes are connected to the power input interface and the electronic switches one by one respectively; wherein: The anode of each diode is connected to one of the power input interfaces, and the cathode of each diode is connected to one end of one of the electronic switches; The control end of the electronic switch is connected to the first end of the micro control unit.

3. The power control system according to claim 2, It is characterized in that The electronic switch is normally in a closed state.

4. The power control system according to claim 1, It is characterized in that The switching setting module is a camera main system; a signal input end of the camera main system is connected to the user interaction interface, and a signal output end of the camera main system is connected to the third end of the micro control unit.

5. The power control system according to claim 4, It is characterized in that The power control system further comprises a system power module; the input end of the system power module is connected to the power output end of the power switching module, and the output end of the system power module is connected to the power supply end of the camera main system.

6. The power supply control system according to claim 5, It is characterized in that The control end of the system power module is connected to the fourth end of the micro control unit.

7. The power control system according to claim 1, It is characterized in that The power supply switching circuit also includes a clock chip; the output end of the clock chip is connected to the fifth end of the micro control unit.

8. The power control system according to claim 1, It is characterized in that The power supply switching circuit also includes a light-load power supply module; the input end of the light-load power supply module is connected to the power output end of the power switching module, and the output end of the light-load power supply module is connected to the sixth end of the micro control unit.

9. The power supply control system according to any one of claims 1 to 8, It is characterized in that At least two of the power input interfaces are connected to power supplies of different specifications.

10. A camera device, It is characterized in that A power supply control system comprising any one of claims 1 to 9.

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