Low-power-consumption solar network camera supporting bidirectional simultaneous power supply

Abstract

A low-power-consumption solar network camera supporting bidirectional simultaneous power supply comprises a shell, the shell is provided with at least one equipment interface, and a circuit module is arranged in the shell. The circuit module comprises a ternary lithium battery module, an AC adapter or an external solar panel power supply input module, a battery charging and power supply management system, an onboard solar charging management system and an onboard solar power supply input module, the on-board solar charging management system and the battery charging and power supply management system can charge the ternary lithium battery module at the same time. According to the embodiment of the utility model, bidirectional simultaneous power supply is supported, and the external solar panel and the onboard solar panel can work cooperatively, so that the charging speed and the energy utilization rate of the equipment are greatly improved, and the equipment can operate efficiently under different illumination conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to real -time monitoring intelligent equipment manufacturing technical field, concretely relates to a kind of low-power solar network camera of supporting bidirectional simultaneous power supply. BACKGROUND

[0002] With the rapid development of network camera monitoring technology, the application field of monitoring system is continuously widened, and is widely used in home security, commercial monitoring, industrial monitoring and other multiple scenes, and users can view and manage the monitoring picture of network camera camera through mobile phone APP or computer terminal equipment in real time, to realize remote monitoring. The existing has the following shortcomings:

[0003] 1, the low-power solar camera product on the current market, most of which adopt external solar panels for power supply, which usually need to be installed separately, and installed through additional support or fixing assembly, which not only increases the complexity of installation, but also may cause wiring cumbersome due to the separation of solar panels and cameras, and need to lay additional power lines or network lines, which greatly increases the construction cost and construction difficulty.

[0004] 2, the existing low-power solar camera product on the market has the problem that embedded solar panels and TYPE-C interface connection external solar panels can only be selected, that is, only one-way power supply is supported, when the external solar panel is inserted, the built-in solar panel cannot work, resulting in waste of solar panel resources;

[0005] 3, some existing low-power solar cameras realize bidirectional power supply through the circuit mode of Schottky diode, but this design has large energy loss, and Schottky diode will produce high voltage drop in the working process, resulting in low charging efficiency of embedded solar panels, prolonging the charging time, which is not conducive to the stable operation of the equipment in all-weather environment.

[0006] 4, most of the existing solar cameras cannot be effectively charged in low-light environment, and usually need to reach a certain threshold of light intensity (such as 50mA or more current output) to start the charging function, resulting in that the equipment cannot maintain normal power supply by using solar energy under weak light conditions, affecting the continuous operation of the monitoring system. INVENTION CONTENTS

[0007] In order to solve the above problems existing in the prior art, the utility model aims at providing a low-power solar network camera supporting bidirectional simultaneous power supply, comprising:

[0008] A shell is provided with at least one device interface, and a circuit module is arranged in the shell, the circuit module comprising:

[0009] A ternary lithium battery module for providing power supply and power storage for a network camera;

[0010] An AC adapter or external solar panel power input module for connecting an external charger or external solar panel and providing power supply for the network camera through at least one device interface;

[0011] A battery charging and power supply management system for connecting the ternary lithium battery module and the AC adapter or external solar panel power input module to provide power supply management for the network camera;

[0012] An on-board solar charging management system for connecting the ternary lithium battery module and the battery charging and power supply management system to manage the on-board solar power input module and charge the ternary lithium battery module;

[0013] An on-board solar power input module including an on-board solar panel embedded in the network camera to convert solar energy into electric energy and provide charging current for the ternary lithium battery module through the on-board solar charging management system;

[0014] Wherein, the on-board solar charging management system and the battery charging and power supply management system can simultaneously charge the ternary lithium battery module.

[0015] Optionally, the battery charging and power supply management system includes a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C14, a capacitor C15, a capacitor C18, a resistor R6, an inductor L1, a TVS diode D4, and a first charging management chip U2, the capacitor C3, the capacitor C4, the capacitor C5, and the capacitor C6 are connected in parallel, one end of the parallel connection is connected to the VBUS pin of the first charging management chip U2, and the other end of the parallel connection is grounded, one end of the capacitor C8, the capacitor C9, the capacitor C10, and the capacitor C11 is grounded, and the other end is connected between the SW pin and the BTST pin of the first charging management chip U2, the inductor L1 is located between the SW pin of the first charging management chip U2 and the capacitor C8, the resistor R6 and the capacitor C7 are connected in series between the SW pin and the BTST pin of the first charging management chip U2, the first end and the second end of the ternary lithium battery module are connected to the BAT pin of the first charging management chip U2, one end of the capacitor C14, and one end of the capacitor C15, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded respectively, and the PMID pin of the first charging management chip U2 is grounded through the capacitor C18;

[0016] The on-board solar charging management system includes a TVS diode D7, a second charging management chip U4, an inductor L2, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C23, a capacitor C24, and a resistor R21. One end of the TVS diode D7, the capacitor C19, the capacitor C20, and the capacitor C21 is grounded, and the other end is connected between the on-board solar power input module and the VIN pin of the second charging management chip U4. The LX pin of the second charging management chip U4 is connected to the ternary lithium battery module through the inductor L2 and the resistor R21. One end of the capacitor C23 and the capacitor C24 is located between the ternary lithium battery module and the resistor R21, and the other end of the capacitor C23 and the capacitor C24 is grounded.

[0017] Optionally, the first charging management chip U2 is an SGM41513D, and the second charging management chip U4 is an SLM6305.

[0018] Optionally, the device interface is a TYPE-C interface, and the AC adapter or external solar panel power input module includes a TVS diode D1, a resistor R1, and a resistor R4. The CC1 pin of the TYPE-C interface is grounded through the resistor R1, the CC2 pin of the TYPE-C interface is grounded through the resistor R4, one end of the TVS diode D1 is grounded, and the other end is connected to the VBUS pin of the TYPE-C interface.

[0019] Optionally, it further includes a low-power MCU control system, a PIR detection module, a light supplement module, a light collection module, an audio collection and playback module, a CMOS image sensing module, and a low-power WIFI Internet of Things module. Among them,

[0020] The low-power MCU control system is used for system low-power management, system charging management, power detection, PIR detection logic judgment and processing, network camera hibernation management, and working mode management.

[0021] The PIR detection module is used for adaptive adjustment of sensitivity according to the difference between environmental temperature and human body temperature.

[0022] The light supplement module is used for light supplement when the external environmental light intensity is too weak.

[0023] The light collection module is used for converting the collected light analog quantity into digital quantity and transmitting it to the SOC core processing system for algorithm processing.

[0024] The audio collection and playback module is used for playing network camera audio information and picking up audio information of the external environment of the network camera.

[0025] The CMOS image sensing module is configured to convert an optical analog image into a digital MIPI signal and transmit the digital MIPI signal to the SOC core processing system.

[0026] The low-power WIFI Internet of Things module is configured to interact with external server data.

[0027] Optionally, the SOC core processing module is further included.

[0028] The SOC core processing module is configured to transmit and process image videos, audio and SDIO signals.

[0029] Optionally, the SOC core processing module includes a master control chip U29, and the low-power MCU control system, the light supplementing module, the light collecting module, the audio collecting and playing module, the CMOS image sensing module, the low-power WIFI Internet of Things module and the battery charging and power supply management system are all connected to the master control chip U29.

[0030] Optionally, the low-power MCU control system includes a low-power MCU chip U18, a power management chip U19, a chip debugging interface MCU_J1, capacitors C117, C118, C119, C120, C121, C122, C123, C124 and C125, and a resistor R109, one end of each of the capacitors C120, C121, C122, C123, C124 and C125 is grounded, and the other end is connected between a VDD pin between a Vout pin of the power management chip U19 and the low-power MCU chip U18, one end of each of the capacitors C117, C118 and C119 is grounded, and the other end is connected to a Vin pin of the power management chip U19, the resistor R109 is connected between the Vin pin and an EN pin of the power management chip U19, and a GND pin of the power management chip U19 is grounded.

[0031] The low-power MCU chip U18 is of a CS32L015K8V6 type.

[0032] The chip debugging interface MCU_J1 is of an NC / CON5_2D0 interface.

[0033] The power management chip U19 is of an EC6306-33S5 type.

[0034] Optionally, when an input current of the AC adapter or the external solar panel power input module and / or the on-board solar power input module is greater than a preset starting current threshold, the on-board solar charging management system and / or the battery charging and power supply management system charges the ternary lithium battery module.

[0035] Optionally, the device interface is located at the bottom of the shell, the on-board solar panel is located at the top of the shell and is electrically connected with the circuit module, and the external charger or the external solar panel is connected with the device interface through a wired connection mode.

[0036] The on-board solar panel and the external solar panel comprise high-efficiency sunpower solar cell pieces, and the solar cell pieces adopt a back contact structure.

[0037] The present application has the following beneficial effects:

[0038] 1. The present application directly embeds the solar panel into the device body, realizes integrated design, simplifies the installation process of the device, improves the light energy utilization efficiency, and facilitates the movement and deployment of the network camera in different environments.

[0039] 2. Compared with the charging circuit mode built by the Schottky diode of the traditional device, the charging efficiency is low and the charging time is long, and the charging efficiency of the circuit mode built by the Schottky diode is only about 78%. The present application greatly improves the charging conversion efficiency by using the on-board solar charging management module and the battery charging and power supply management module, so that the device can still maintain high charging efficiency under the condition of one-way solar panel charging or AC-DC adapter charging, and the charging conversion efficiency can reach about 92%, thereby effectively shortening the charging time and improving the endurance of the device.

[0040] 3. The present application supports bidirectional simultaneous power supply, and the external solar panel and the built-in solar panel can work cooperatively to greatly improve the charging speed and energy utilization rate of the device, and ensure that the device can operate efficiently under different light conditions.

[0041] 4. The present application adopts the on-board solar charging management module and the battery charging and power supply management module which are optimized in design, can start the charging function when the light is weak, and can charge the device in cloudy or low-light environment, thereby significantly improving the endurance and adaptability of the device, and ensuring the stable operation of the system in different environments. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0043] Figure 1is a structural block diagram of the embodiment of the utility model;

[0044] Figure 2 is the circuit diagram of the on-board solar charging management system, ternary lithium battery module, AC adapter or external solar panel power input module, battery charging and power management system, on-board solar power input module of the utility model;

[0045] Figure 3 is the circuit diagram of the low-power MCU control system of the utility model;

[0046] Figure 4 is the circuit diagram of the SOC core processing module of the utility model;

[0047] Figure 5 is the circuit diagram of the audio acquisition and playing module of the utility model;

[0048] Figure 6 is the circuit diagram of the CMOS image sensing module of the utility model;

[0049] Figure 7 is the circuit diagram of the low-power WIFI Internet of Things module of the utility model;

[0050] Figure 8 is the circuit diagram of the light collection module of the utility model;

[0051] Figure 9 is the circuit diagram of the light supplement module of the utility model;

[0052] Figure 10 is the circuit diagram of the PIR detection module of the utility model;

[0053] Figure 11 is the circuit diagram of the DC-DC conversion circuit of the utility model;

[0054] Figure 12 is the partial structural schematic view of the low-power solar network camera supporting bidirectional simultaneous power supply of the utility model;

[0055] Figure 13 is the structural schematic view of the low-power solar network camera supporting bidirectional simultaneous power supply of the utility model;

[0056] Figure 14 is the partial structural schematic view of another view of the low-power solar network camera supporting bidirectional simultaneous power supply of the utility model.

[0057] Reference signs:

[0058] 1, housing; 2, device interface; 3, external solar panel; 4, on-board solar panel; 5, connecting line; 100, ternary lithium battery module; 200, on-board solar charging management system; 300, AC adapter or external solar panel power input module; 400, battery charging and power management system; 500, on-board solar power input module; 600, low-power MCU control system; 700, light supplementing module; 800, light collection module; 900, audio collection and playing module; 1000, CMOS image sensing module; 1100, low-power WIFI Internet of Things module; 1200, SOC core processing module; 1300, PIR detection module. DETAILED DESCRIPTION

[0059] The utility model will be described further in detail below in combination with the drawings.

[0060] The specific embodiments are merely an explanation of the utility model, and are not a limitation of the utility model. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

[0061] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0062] Therefore, the detailed description of the embodiments of the utility model provided in the drawings below is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0063] The technical scheme in the embodiments of the application will be described clearly and completely below in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0064] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. All directional indications (such as upper, lower, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, and the like in a certain posture (as shown in the drawings); it should be noted that when a component is referred to as "fixed to", "provided on", or "connected to" another component, it can be directly on another component or there can be a middle component. When a component is considered as "connected" to another component, it can be directly connected to another component, or there can be one or more middle components between them. The terms "vertical", "horizontal", "left", "right", and the like used in the present application are only for illustrative purposes, and are not the only implementation.

[0065] As Figures 1-14 shown, to solve the problems existing in the prior art, the utility model provides a low -power solar network camera that can realize two -way power supply simultaneously, realizes product in embedded board -mounted small -power solar panel can alone give product charge, simultaneously and external big -power solar panel also can through connecting line 5 simultaneously give product charge (reference Figures 12-14 ), and board -mounted solar panel charging efficiency is as high as 92%.

[0066] Referring to Figure 1 , Figures 12-14 , the utility model provides a low -power solar network camera that can realize two -way power supply simultaneously embodiment includes:

[0067] The shell 1 is provided with at least one device interface 2, and the shell 1 is provided with a circuit module, and the circuit module comprises:

[0068] The ternary lithium battery module 100 is used to provide power supply and power storage for the network camera;

[0069] The AC adapter or external solar panel power input module 300 is connected to the external charger or external solar panel and provides power supply for the network camera through at least one device interface 2;

[0070] The battery charging and power supply management system 400 is connected to the ternary lithium battery module 100 and the AC adapter or external solar panel power input module 300, and is used to provide power supply management for the network camera;

[0071] The on-board solar charging management system 200 is connected with the ternary lithium battery module 100 and the battery charging and power supply management system 400, and is used for managing the on-board solar power input module 500 and charging the ternary lithium battery module 100.

[0072] The on-board solar power input module 500 comprises an on-board solar panel 4 embedded in the network camera, converts solar energy into electric energy, and provides charging current for the ternary lithium battery module 100 through the on-board solar charging management system 200.

[0073] The on-board solar charging management system 200 and the battery charging and power supply management system 400 can simultaneously charge the ternary lithium battery module 100.

[0074] The embodiment of the utility model discloses a solar panel is directly embedded in the device body, realizes integrated design, simplifies the installation process of equipment, improves the light energy utilization efficiency, and the network camera is convenient for moving and deployment under different environments, compared with the circuit mode of charging of traditional equipment using schottky diode, there is the problem of low charging efficiency and long charging time, wherein the charging efficiency of the circuit mode of charging using schottky diode is only about 78%. The utility model discloses a on-board solar charging management module and battery charging and power supply management module, which greatly improves the charging conversion efficiency, so that the equipment can still maintain high charging efficiency under the condition of single solar panel charging or AC-DC adapter charging, and the charging conversion efficiency can reach about 92%, thereby effectively shortening the charging time and improving the endurance of the equipment. The embodiment of the utility model supports bidirectional simultaneous power supply, and the external solar panel 3 and the built-in solar panel can work cooperatively, which greatly improves the charging speed and energy utilization rate of the equipment, and ensures that the equipment can operate efficiently under different light conditions. The on-board solar charging management module and battery charging and power supply management module of the utility model are designed to start the charging function when the light is weak, so that the equipment can still be charged under cloudy or low-light environment, which significantly improves the endurance and adaptability of the equipment, thereby ensuring the stable operation of the system under different environments.

[0075] Optionally, the battery charging and power supply management system 400 comprises a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C14, a capacitor C15, a capacitor C18, a resistor R6, an inductor L1, a TVS diode D4, and a first charging management chip U2, one end of the capacitor C3, the capacitor C4, and the capacitor C5 connected in parallel is connected to the VBUS pin of the first charging management chip U2, the other end of the capacitor C3, the capacitor C4, and the capacitor C5 connected in parallel is grounded, one end of the capacitor C8, the capacitor C9, and the capacitor C10 is grounded respectively, the other end of the capacitor C8, the capacitor C9, and the capacitor C10 is connected between the SW pin and the BTST pin of the first charging management chip U2, the inductor L1 is located between the SW pin of the first charging management chip U2 and the capacitor C8, the resistor R6 and the capacitor C7 are connected in series between the SW pin and the BTST pin of the first charging management chip U2, the first end and the second end of the ternary lithium battery module 100 are connected to the BAT pin of the first charging management chip U2, one end of the capacitor C14, and one end of the capacitor C15, the other end of the capacitor C14 and the capacitor C15 is grounded respectively, the PMID pin of the first charging management chip U2 is grounded through the capacitor C18.

[0076] The on-board solar charging management system 200 comprises a TVS diode D7, a second charging management chip U4, an inductor L2, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C23, a capacitor C24, and a resistor R21, one end of the TVS diode D7, the capacitor C19, the capacitor C20, and the capacitor C21 is grounded respectively, the other end is connected between the on-board solar power input module 500 and the VIN pin of the second charging management chip U4, the LX pin of the second charging management chip U4 is connected to the ternary lithium battery module 100 through the inductor L2 and the resistor R21, one end of the capacitor C23 and the capacitor C24 is located between the ternary lithium battery module 100 and the resistor R21, the other end of the capacitor C23 and the capacitor C24 is grounded respectively.

[0077] Optionally, the first charging management chip U2 is SGM41513D, and the second charging management chip U4 is SLM6305.

[0078] Specifically, the on-board solar charging management module is used for managing the lithium battery charging related management work of the solar panel embedded in the product shell structure, and realizes the charging of the lithium battery by the solar energy. It is one of the important modules of the utility model patent. After a large number of selection tests, the SLM6305 is finally used in the design of this module system. SLM6305 is a 2.5A lithium ion battery charger with a wide voltage input adapter. It uses a 550kHz fixed frequency synchronous step-down converter, so it has a charging efficiency of up to 92% or more, and the self-heating is very small. It integrates 28V high voltage devices, which can effectively prevent chip damage caused by surge voltage or misconnection of high voltage adapter, and has very high safety. SLM6305 includes a complete charging termination circuit, automatic recharge and a 4.2V preset charging voltage with a precision of ±1%, and integrates various functions such as anti-backflow protection, output short circuit protection, chip and battery temperature protection. SLM6305 has a built-in anti-backflow circuit, which effectively prevents the problem of leakage current in the bidirectional power supply process, and is an excellent choice for small power solar panel charging management. At the same time, a weak light detection circuit is also designed in the product, which is determined and controlled by the MCU control system through U5 and the peripheral auxiliary circuit. When the product detects that the input sunlight is relatively weak, the charging function at this time may be relatively unstable, and the MCU control will control the on-board solar charging management system 200 to stop charging. When the light reaches a certain requirement, it will be restored, effectively ensuring the normal operation of the charging system.

[0079] Specifically, the battery charging and power supply management system 400 is the power supply management part of the IPC system and the lithium battery charging management including the external power supply through the TYPE-C input, including battery trickle charging, constant current charging, constant voltage charging and other management parts. It is one of the important modules of the utility model patent. The battery charging and power supply management system 400 will be connected with the AC adapter or external solar panel 3 power input, ternary lithium battery module 100, on-board solar charging management system 200 and MCU, and comprehensively realize the charging of the lithium battery of the product and the power supply management of the system. The charging current size, charging state detection and display, NTC protection of this system are all controlled by the MCU control system. SGM41513D is comprehensively selected in this embodiment to realize it.

[0080] SGM41513D is a high-voltage, high-efficiency 93.8% switch-mode lithium battery charging management IC with a switching frequency of 1.5MHz. It has a solar charging dynamic management function and an internal current anti-backflow module. When the device is equipped with an embedded on-board solar panel 4, such as a fixed 1.2W panel, under certain light conditions, the on-board solar panel 4 will convert solar energy into electrical energy, which will be stored in the ternary lithium battery module 100 for system use under the joint control of the SLM6305 management system and the MCU control system. The MCU control system can realize charging input detection, charging state judgment, charging opening and closing of the SLM6305 management system. In some areas with insufficient light, if the end user wants to increase the charging power supply to the system by externally connecting an external solar panel 3, they can insert a solar panel of the desired size through the TYPE-C input port, such as 2W / 3W / 5W / 10W. In this application scenario, under certain light intensity, the embedded on-board solar panel 4 and the external solar panel 3 can both provide charging current to the system, and there will be no interference or influence between them, with a maximum charging efficiency of 92% and 93.8% respectively, completely achieving a 1+1=2 superposition state. In this application scenario, the battery charging and power management system 400 and the on-board solar charging management system 200 will work simultaneously and be comprehensively controlled by the MCU control management system.

[0081] Optionally, the device interface 2 is a TYPE-C interface, and the AC adapter or external solar panel power input module 300 includes a TVS diode D1, a resistor R1, and a resistor R4. The CC1 pin of the TYPE-C interface is grounded through the resistor R1, the CC2 pin of the TYPE-C interface is grounded through the resistor R4, and one end of the TVS diode D1 is grounded and the other end is connected to the VBUS pin of the TYPE-C interface.

[0082] Optionally, it further includes a low-power MCU control system 600, a PIR detection module 1300, a light supplementing module 700, a light collection module 800, an audio collection and playback module 900, a CMOS image sensing module 1000, and a low-power WIFI Internet of Things module 1100.

[0083] The low-power MCU control system 600 is responsible for system low-power management, system charging management, power detection, PIR detection logic judgment and processing, network camera sleep management, and working mode management.

[0084] Further, the PIR detection module 1300 is used for adaptive adjustment of sensitivity according to the difference between the ambient temperature and the human body temperature; the PIR detection module 1300 is a human body pyroelectric detection module, when a human body or the like enters the monitoring area of the product, pyroelectric energy is released, the PIR detection module 1300 of the embodiment converts the pyroelectric energy value into weak analog quantity, and then performs secondary operational amplification and threshold comparison to generate a trigger signal, and then the trigger signal is given to the MCU control system. After the MCU receives the trigger signal, if it is judged that an event is triggered, the system video recording and collecting function is further started.

[0085] Further, the light supplementing module 700 is used for light supplementing when the external environment light intensity is too weak; the light supplementing module 700 is an IPC light supplementing system, when the external environment light intensity is too weak, the light supplementing module 700 is started to keep sufficient light conditions for collecting pictures.

[0086] Further, the light collecting module 800 is used for converting the collected light analog quantity into digital quantity and transmitting to the SOC core processing system for algorithm processing.

[0087] Further, the audio collecting and playing module 900 is used for playing the audio information of the network camera and picking up the audio information of the external environment of the network camera; the audio collecting and playing module 900 is responsible for realizing local playing of remote sound and picking up of local environment sound, and transmits the related audio information to the SOC core processing system to complete sound coding and decoding, and then can remotely listen to the on-site sound through the low-power WIFI Internet of Things module 11002.4G wireless communication module communication, and can also remotely transmit the sound to the on-site to realize the function of two-way intercom, and the audio collecting and playing module 900 is in a power-down state in the low-power mode.

[0088] Further, the CMOS image sensing module 1000 is used for converting an optical analog image into a digital MIPI signal and transmitting to the SOC core processing system; the CMOS image sensing module 1000 is an image collecting and processing system, outputs a raw format image, the effective pixel window is 2688Hx1520V, supports complex on-chip operations such as windowing, horizontal or vertical mirroring, etc. The raw format optical image is transmitted to the SOC system through the MIPI channel to further complete image compression and coding processing. The module is in a power-down mode in the case that the product is in no PIR triggering or remote wake-up, so as to reduce the product power consumption.

[0089] Further, the low-power WIFI Internet of Things module is used for data interaction with an external server. The low-power WIFI Internet of Things module 1100 supports a low-power 2.4G WiFi4 communication module of an IEEE 802.11b / g / n protocol, supports single-space stream transmission, a 400ns short guard interval and a 20MHz channel bandwidth. Local data processed by the SOC is communicated with the server through the WiFi IOT, so as to realize remote data transmission and flexibly establish a wireless monitoring communication environment. In the case that the product is in a low-power mode without PIR triggering or remote wake-up, the module communicates with the AP through DTIM information to keep the IPC in a low-power state.

[0090] Optionally, the SOC core processing module 1200 is further included.

[0091] The SOC core processing module 1200 is used for transmitting and processing images, videos, audio and SDIO signals.

[0092] Further, the SOC core processing module 1200 includes a master control chip U29, and the low-power MCU control system 600, the light supplementing module 700, the light collection module 800, the audio collection and playing module 900, the CMOS image sensing module 1000, the low-power WIFI Internet of Things module 1100 and the battery charging and power supply management system 400 are connected to the master control chip U29.

[0093] In the embodiment, the SOC core processing system adopts a Linux system. The low-power WIFI Internet of Things module 1100 processes the MIPI signal transmitted in a compression and coding manner by using H264 or H265 technology, and transmits the processed signal to the low-power WIFI Internet of Things module 1100 in a SIDO signal communication format. The low-power WIFI Internet of Things module 1100 uploads the video picture information to a background server. A user can access the monitoring picture information in a real time manner through the server. The SOC core processing system can also process the audio playing and collecting module signal, and upload the video picture information to the background server through the low-power WIFI Internet of Things module 1100. The user can access the product through the server in a manner of accessing the server, and then monitor or interact the local real-time video or sound information. The SOC core processing system is also responsible for light intensity data processing, light supplementing system control, communication with the low-power MCU to obtain local power data uploaded to the server, and completion of the IPC low-power mode and normal working mode switching with the low-power MCU. The SOC core processing system can also complete pet detection, movement detection and human shape detection and other intelligent algorithm processing. The SOC core processing system is in a power-off state in the case that the product is in a low-power mode without PIR triggering or remote wake-up, so as to reduce the product power consumption.

[0094] Optionally, the low-power MCU control system 600 comprises a low-power MCU chip U18, a power management chip U19, a chip debugging interface MCU J1, a capacitor C117, a capacitor C118, a capacitor C119, a capacitor C120, a capacitor C121, a capacitor C122, a capacitor C123, a capacitor C124, a capacitor C125, and a resistor R109. One end of the capacitor C120, the capacitor C121, the capacitor C122, the capacitor C123, the capacitor C124, and the capacitor C125 is grounded, and the other end is connected between the VDD pin between the Vout pin of the power management chip U19 and the low-power MCU chip U18. One end of the capacitor C117, the capacitor C118, and the capacitor C119 is grounded, and the other end is connected to the Vin pin of the power management chip U19. The resistor R109 is connected between the Vin pin and the EN pin of the power management chip U19. The GND pin of the power management chip U19 is grounded.

[0095] The model of the low-power MCU chip U18 is CS32L015K8V6.

[0096] The chip debugging interface MCU J1 adopts an NC / CON5_2D0 interface.

[0097] The model of the power management chip U19 is EC6306-33S5.

[0098] Optionally, when the input current of the AC adapter or external solar panel power supply input module 300 and / or the on-board solar power supply input module 500 is greater than a preset starting current threshold, the on-board solar charging management system and / or the battery charging and power supply management system 400 charges the ternary lithium battery module 100. In this embodiment, by setting the preset starting current threshold, charging of the ternary lithium battery is started only when the input current is greater than the threshold; in this way, energy waste caused by blind charging attempts when the light is too weak or the power supply power is insufficient can be avoided, and by designing the threshold as a flexible parameter, the subsequent higher or lower input current requirements can be ensured to be forward-looking and compatible, thereby effectively solving the problem that the bidirectional power supply solar network camera does not start the charging function when the solar panel charging power is low.

[0099] Optionally, the preset starting current threshold is 0-100 mA.

[0100] Preferably, the preset starting current threshold is 1-5 mA.

[0101] Optionally, the device interface 2 is located at the bottom of the shell 1, the on-board solar panel 4 is located at the top of the shell 1 and is electrically connected with the circuit module, and the external charger or the external solar panel is connected with the device interface 2 in a wired connection mode.

[0102] The on-board solar panel 4 and the external solar panel comprise high-efficiency sunpower solar cell pieces, the solar cell pieces adopt a back contact structure, the on-board solar panel 4 is a low-power solar panel embedded in a product body structure and is integrated with the product as a stable source of system solar input. This module receives solar light, converts light energy into electric energy, and then stores the electric energy in the ternary lithium battery module 100 after processing by the on-board solar charging management module. Meanwhile, the sunpower cell pieces used in the on-board solar panel 4 have an excellent photoelectric conversion efficiency of more than 25%, and can generate a large working current under weak light. The surface process adopts an ETFE process, which can prevent the solar surface from being corroded by acid rain, salt, etc., and has strong anti-aging properties. It provides long-term and stable protection for continuous power supply of the product.

[0103] The logic control function principle of the embodiment of the utility model is as follows:

[0104] The low-power MCU control system 600 is responsible for system low-power management, system charging management, electric quantity detection, PIR detection logic judgment and processing, IPC sleep and working mode management, etc. In the low-power mode, only the low-power MCU control system 600, the low-power WIFI Internet of Things module 1100, the PIR detection module 1300, the battery charging and power supply management system 400 and the ternary lithium battery module 100 are in the low-power working mode, and other modules are in the power-off state, so that the product power consumption can be greatly saved. In the normal working mode, the above-mentioned systems are in the normal power supply mode. In the normal working mode, the terminal user can remotely wake up the product into the normal working mode through the APP; another way is that when a person or an object moves within the range of 8m designed by the product, the product PIR detection module 1300 detects and wakes up the product into the normal working mode.

[0105] After the product is triggered by the PIR detection module 1300 or remotely woken up by the user, the low-power MCU control system 600 switches the product from the low-power mode to the normal working mode, including waking up the low-power WIFI Internet of Things module 1100, re-powering the CMOS image sensing module 1000, the SOC core processing system and the audio acquisition and playing module, etc.

[0106] After the CMOS image sensor module 1000 is powered on, real-time video pictures of the scene are captured, and optical images are converted into output raw format images. If the light intensity is insufficient during the image capture process, resulting in unclear captured pictures, the system will start the light supplement module 700 to supplement light, so as to maintain sufficient light conditions for the captured picture effect. Then the captured and processed raw format optical images are transmitted to the SOC core processing system through the MIPI channel. The SOC core processing system will further complete image compression and encoding processing by using H264 or H265 encoding technology. Then the video picture information is transmitted to the low-power WIFI Internet of Things module 1100 in the SIDO signal communication format, the low-power WIFI Internet of Things module 1100 uploads the video picture information to the background server, and the user can access the monitoring picture information in real time through the server. The SOC core processing system can also process the monitoring picture information through the audio playing and capturing module signal, and upload the video picture information to the background server through the low-power WIFI Internet of Things module 1100. The user can access the product by accessing the server through the mobile phone APP, and then watch or interact with the local real-time video or sound information. At the same time, the SOC core processing system can also complete pet detection, movement detection and human shape detection and other intelligent algorithm operation processing.

[0107] The above is only used to illustrate the technical scheme of the present application, but not limit the present application. Other modifications or equivalent replacements to the technical scheme of the present application made by those skilled in the art should be covered in the scope of the claims of the present application, as long as they do not deviate from the spirit and scope of the present application.

Claims

1. A low power solar network camera supporting bi-directional simultaneous power supply, characterized in that, The application relates to a low-power solar network camera supporting bidirectional simultaneous power supply, which comprises a shell provided with at least one device interface, a circuit module arranged in the shell, and the circuit module comprises: a ternary lithium battery module for providing power supply and power storage for the network camera; an AC adapter or external solar panel power input module connected with an external charger or external solar panel and providing power supply for the network camera through the at least one device interface; a battery charging and power supply management system connected with the ternary lithium battery module and the AC adapter or external solar panel power input module and used for providing power supply management for the network camera; an on-board solar charging management system connected with the ternary lithium battery module and the battery charging and power supply management system and used for managing the on-board solar power input module and charging management of the ternary lithium battery module; an on-board solar power input module comprising an on-board solar panel embedded in the network camera, converting solar energy into electric energy and providing charging current for the ternary lithium battery module through the on-board solar charging management system; wherein the on-board solar charging management system and the battery charging and power supply management system can simultaneously charge the ternary lithium battery module.

2. The low-power solar network camera supporting bidirectional simultaneous power supply according to claim 1, wherein: the battery charging and power supply management system comprises a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C14, a capacitor C15, a capacitor C18, a resistor R6, an inductor L1, a TVS diode D4 and a first charging management chip U2, the capacitor C3, the capacitor C4 and the capacitor C5 are connected in parallel, one end of the parallel connection is connected with a VBUS pin of the first charging management chip U2, the other end of the parallel connection is grounded, one end of the capacitor C8, the capacitor C9, the capacitor C10 and the capacitor C11 is grounded respectively, the other end is connected between a SW pin and a BTST pin of the first charging management chip U2, the inductor L1 is located between the SW pin of the first charging management chip U2 and the capacitor C8, the resistor R6 and the capacitor C7 are connected in series between the SW pin and the BTST pin of the first charging management chip U2, a first end and a second end of the ternary lithium battery module are connected with a BAT pin of the first charging management chip U2, one end of the capacitor C14 and one end of the capacitor C15, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded respectively, and a PMID pin of the first charging management chip U2 is grounded through the capacitor C18. The on-board solar charging management system includes a TVS diode D7, a second charging management chip U4, an inductor L2, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C23, a capacitor C24, and a resistor R21. One end of the TVS diode D7, the capacitor C19, the capacitor C20, and the capacitor C21 is grounded, and the other end is connected between the on-board solar power input module and the VIN pin of the second charging management chip U4. The LX pin of the second charging management chip U4 is connected to the ternary lithium battery module through the inductor L2 and the resistor R21. One end of the capacitor C23 and the capacitor C24 is between the ternary lithium battery module and the resistor R21, and the other end of the capacitor C23 and the capacitor C24 is grounded.

3. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 2, characterized in that, The first charging management chip U2 is an SGM41513D, and the second charging management chip U4 is an SLM6305.

4. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 1, characterized in that, The device interface is a TYPE-C interface, and the AC adapter or external solar panel power input module includes a TVS diode D1, a resistor R1, and a resistor R4. The CC1 pin of the TYPE-C interface is grounded through the resistor R1, the CC2 pin of the TYPE-C interface is grounded through the resistor R4, one end of the TVS diode D1 is grounded, and the other end is connected to the VBUS pin of the TYPE-C interface.

5. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 1, characterized in that, It also includes a low-power MCU control system, a PIR detection module, a light supplement module, a light collection module, an audio collection and playback module, a CMOS image sensing module, and a low-power WIFI Internet of Things module. Among them, The low-power MCU control system is responsible for system low-power management, system charging management, power detection, PIR detection logic judgment and processing, network camera sleep management, and working mode management; The PIR detection module adjusts the sensitivity adaptively according to the temperature difference between the environment and the human body; The light supplement module supplements light when the external environmental light intensity is too weak; The light collection module converts the collected light analog quantity into digital quantity and transmits it to the SOC core processing system for algorithm processing; The audio collection and playback module plays the audio information of the network camera and picks up the audio information of the external environment of the network camera; The CMOS image sensing module converts optical analog images into digital MIPI signals and transmits them to the SOC core processing system; The low-power WIFI Internet of Things module is used for data interaction with external servers.

6. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 5, characterized in that, It also includes a SOC core processing module. The SOC core processing module is used for transmission and operation processing of image video, audio, and SDIO signals.

7. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 6, characterized in that, The SOC core processing module includes a master control chip U29, and the low-power MCU control system, the light supplement module, the light collection module, the audio collection and playback module, the CMOS image sensing module, the low-power WIFI Internet of Things module, and the battery charging and power management system are all connected to the master control chip U29.

8. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 5, characterized in that, The low-power MCU control system comprises a low-power MCU chip U18, a power management chip U19, a chip debugging interface MCU J1, capacitors C117, C118, C119, C120, C121, C122, C123, C124 and C125, and a resistor R109; one end of each of the capacitors C120, C121, C122, C123, C124 and C125 is grounded, and the other end is connected between a VDD pin between a Vout pin of the power management chip U19 and the low-power MCU chip U18; one end of each of the capacitors C117, C118 and C119 is grounded, and the other end is connected to a Vin pin of the power management chip U19; the resistor R109 is connected between the Vin pin and an EN pin of the power management chip U19; and a GND pin of the power management chip U19 is grounded. The low-power MCU chip U18 is of a CS32L015K8V6 type. The chip debugging interface MCU J1 adopts an NC / CON5_2D0 interface. The power management chip U19 is of an EC6306-33S5 type.

9. The low power solar network camera supporting bidirectional simultaneous power supply of claim 1, wherein, When the input current of the AC adapter or external solar panel power supply input module and / or the on-board solar power supply input module is greater than a preset starting current threshold, the on-board solar charging management system and / or the battery charging and power supply management system charges the ternary lithium battery module.

10. The low power solar network camera supporting bidirectional simultaneous power supply according to claim 1, characterized in that, The device interface is located at the bottom of the shell, the on-board solar panel is located at the top of the shell and is electrically connected with the circuit module, and the external charger or the external solar panel is connected with the device interface in a wired connection mode; wherein, The on-board solar panel and the external solar panel comprise high-efficiency sunpower solar cell pieces, and the solar cell pieces adopt a back contact structure.

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