WO2021098009A1

WO2021098009A1 - Solar camera

Info

Publication number: WO2021098009A1
Application number: PCT/CN2019/128966
Authority: WO
Inventors: 任斌; 李建浦
Original assignee: 深圳市百年立乐科技有限公司
Priority date: 2019-11-21
Filing date: 2019-12-27
Publication date: 2021-05-27
Also published as: CN110855865A

Abstract

A solar camera. A solar conversion module is provided to collect solar energy, convert the solar energy into electrical energy, and then transmit same to a power supply module. The power supply module is separately connected to a main control module and an external charging output module. After the power supply module is connected to an external electronic device by means of the external charging output module, the solar camera can charge the external electronic device. The present invention solves the technical problem in the prior art that a camera needs an external power supply to work and cannot provide a charging function for an external electronic device, and provides a solar camera that can be self-powered and can supply power to the outside.

Description

Solar camera

Technical field

The present invention relates to the technical field of cameras, in particular to a solar camera.

Background technique

With the continuous development of science and technology, new products with better performance and more comprehensive functions are constantly emerging from application products in various technical fields. As one of the important devices for image acquisition, the camera has superior product performance and more comprehensive auxiliary functions, which has become one of the consideration conditions for consumers to purchase and use.

Therefore, in order to gain the favor of more consumers, how to perform necessary performance optimization or new functions for the camera has become a technical problem that needs to be solved by those skilled in the art during the development of the camera.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a solar camera capable of self-powered and externally powered.

In the first aspect, an embodiment of the present invention provides a solar camera, which includes: a solar conversion module, a power supply module, a main control module, an image acquisition module, and an external charging output module;

The main control module is connected with the image acquisition module to control the working state of the image acquisition module;

The solar energy conversion module is connected to the input end of the power module, so that the solar energy conversion module converts solar energy into electric energy and transmits it to the power module;

The power supply module is respectively connected to the main control module and the external charging output module, and supplies power to the main control module and the external charging output module, respectively.

The solar camera of the embodiment of the present invention has at least the following beneficial effects:

The solar camera in the embodiment of the present invention is provided with a solar energy conversion module for collecting solar energy and converting it into electric energy and then transmitting it to the power module. The power module is respectively connected to the main control module and the external charging output module, and the power module is connected to the outside through the external charging output module. After the electronic device is connected, the solar camera can charge the external electronic device; it solves the technical problem that the camera needs an external power supply in the prior art and cannot provide the charging function for the external electronic device, and provides a self-powered and Solar camera capable of external power supply.

According to some other embodiments of the solar camera of the present invention, the solar camera further includes a wireless transmission module;

The power supply module is connected to the wireless transmission module and is used to provide working power for the wireless transmission module;

The main control module is connected to the wireless transmission module and is used to control the working state of the wireless transmission module.

According to some other embodiments of the solar camera of the present invention, the power module includes a voltage conversion circuit and an energy storage battery;

The energy storage battery is respectively connected to the voltage conversion circuit and the external charging output circuit;

The voltage conversion circuit is respectively connected with the main control module and the wireless transmission module.

According to some other embodiments of the solar camera of the present invention, the wireless transmission module is a WIFI module.

According to some other embodiments of the solar camera of the present invention, the solar energy conversion module includes: a solar energy collection unit, a rectifier unit, and a charging switch control unit;

The solar energy collection unit is connected to the rectification unit, so that the solar energy collection unit converts solar energy into electric energy and then performs rectification processing;

The rectifier unit is connected to the charging switch control unit, and the charging switch control unit is connected to the power supply module for charging the power supply module.

According to some other embodiments of the solar camera of the present invention, the solar energy collection unit includes a polysilicon plate, the rectifier unit includes a first rectifier diode, and the charge switch control unit includes a first MOS tube, a first resistor, and a second resistor. , A third resistor, a first diode, and a switch control chip; the output end of the polysilicon plate is connected to the cathode of the first rectifier diode, and the anode of the first rectifier diode is respectively connected to the first resistor of the first resistor. One end is connected to the source of the first MOS transistor, and the second end of the first resistor is respectively connected to the first end of the second resistor and the gate of the first MOS transistor. The second terminal is connected to the output terminal of the switch control chip, the output terminal of the power module is connected to the anode of the first diode, and the cathode of the first diode is connected to the output terminal of the third resistor. The first terminal is connected to the input terminal of the switch control chip, the second terminal of the third resistor and the ground terminal of the switch control chip are respectively connected to the power ground, and the drain of the first MOS transistor is connected to the The input terminal of the power supply module is connected.

According to some other embodiments of the solar camera of the present invention, the solar camera further includes an external power input circuit;

The external power input circuit is connected to the power module, and is used to transmit the electric energy of the external input power to the power module.

According to some other embodiments of the solar camera of the present invention, the external power input circuit includes: an external power input interface, an overvoltage protection unit, a voltage stabilizing filter unit, and a charging management unit;

The external power input interface is respectively connected with the overvoltage protection unit, the voltage stabilization filter unit and the charging management unit;

The charging management unit is connected to the power supply module and is used for charging the power supply module.

According to some other embodiments of the solar camera of the present invention, the external power interface is a first USB interface, the overvoltage protection unit is a first bidirectional diode, and the voltage stabilizing filter unit includes a first capacitor, a second capacitor, and The second diode, the charging management unit includes a charging control chip, and the voltage output terminal of the first USB interface is respectively connected to the first terminal of the first bidirectional diode, the anode of the second diode, and the The input terminal of the charging control chip is connected, the cathode of the second diode is respectively connected to the first terminal of the first capacitor, the first terminal of the second capacitor, and the system power supply. The second terminal, the second terminal of the second capacitor, and the second terminal of the first bidirectional diode are respectively connected to the power ground, and the output terminal of the charging management chip is connected to the input terminal of the power module.

According to some other embodiments of the solar camera of the present invention, the main control module is a MB95F636KPMC-G-UNE2 chip.

Description of the drawings

Fig. 1 is a block diagram of a specific embodiment of a solar camera according to an embodiment of the present invention;

2 is a circuit diagram of a specific embodiment of a voltage conversion circuit in a solar camera according to an embodiment of the present invention;

3 is a circuit diagram of another specific embodiment of a voltage conversion circuit in a solar camera according to an embodiment of the present invention;

4 is a circuit diagram of a specific embodiment of a solar energy conversion module in a solar camera according to an embodiment of the present invention;

5 is a circuit diagram of another specific embodiment of a solar energy conversion module in a solar camera according to an embodiment of the present invention;

6 is a circuit diagram of a specific embodiment of an external charging output module in a solar camera according to an embodiment of the present invention;

FIG. 7 is a circuit diagram of a specific embodiment in which an external power input circuit in a solar camera according to an embodiment of the present invention includes an external power input interface, an overvoltage protection unit, and a voltage stabilizing filter unit;

8 is a circuit diagram of a specific embodiment in which a charging management unit is included in an external power input circuit of a solar camera according to an embodiment of the present invention;

FIG. 9 is a schematic circuit diagram of a specific embodiment of a main control module in a solar camera according to an embodiment of the present invention.

Detailed ways

In the following, the concept of the present invention and the technical effects produced by it will be clearly and completely described in conjunction with the embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work belong to The scope of protection of the present invention.

In the description of the embodiments of the present invention, if “first”, “second”, “third”, etc. are involved, it should be understood as used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicit Specify the number of the indicated technical features or implicitly indicate the sequence of the indicated technical features.

1, in the embodiment of the present invention, the solar camera includes: a solar conversion module, a power supply module, a main control module, an image acquisition module, and an external charging output module. Among them, the solar energy conversion module is connected to the power module, and is used to convert the solar energy into electric energy and then transmitted to the power module; the power module is connected to the external charging output module and the main control module respectively, and both are used to charge the external charging output module and the main control module. The control module is powered; the main control module is connected with the image acquisition module and is used to control the working state of the image acquisition module. In the embodiment of the present invention, the solar energy conversion module is connected to the power supply module to convert solar energy into electric energy to provide working power for the camera itself, and then the external power output module is connected to the power supply module to store the power supply module in the solar camera. The electric energy is used to charge external electronic devices, which solves the technical problem that the camera needs an external power supply to provide working power for itself and cannot provide charging functions to external electronic devices in the prior art, and provides a self-powered and external power supply Solar camera.

In some embodiments, the solar camera further includes a wireless transmission module, which is provided with a wireless transmission module that can be used to transmit image information collected by the solar camera to an external device through wireless transmission, and a wireless transmission module is provided to enable the solar camera to be installed independently Use, fully realize wireless installation and use (power supply is powered by solar conversion module, and data transmission is transmitted through wireless transmission module). In the embodiment of the present invention, the wireless transmission module can be set as a WIFI module, the power module is connected to the WIFI module, and is used to provide working power for the WIFI module, and the main control module is connected to the WIFI module to control the working state of the WIFI module.

In some embodiments, the power module of the solar camera includes an energy storage battery and a voltage conversion circuit. The solar conversion module is connected to the energy storage battery and transmits the converted electric energy to the energy storage battery. The energy storage battery is connected to the voltage conversion circuit and the external The charging output module is connected, and the voltage conversion circuit converts the voltage delivered by the energy storage battery and outputs it to the above-mentioned main control module and WIFI module to provide working voltage for it. Among them, the energy storage battery is a lithium battery.

2, in the embodiment of the present invention, the voltage conversion circuit includes a resistor R1, a resistor R2, a resistor R3, an inductor L1, a voltage conversion chip U1, and a capacitor C1 to a capacitor C5; among them, the voltage conversion chip U1 is a SY8089 chip, and the resistor R2 The first end is connected to the main control module, the second end of the resistor R2 is respectively connected to the first end of the capacitor C5 and the enable end EN of the voltage conversion chip U1, and the first end of the capacitor C1 is respectively connected to the first end of the capacitor C2, The voltage input terminal IN of the voltage conversion chip U1 and the system power supply VCC_SYS are connected, the second end of the capacitor C1 and the second end of the capacitor C2 are respectively connected to the power ground, the inductor pin LX of the voltage conversion chip U1 and the first end of the inductor L1 Connected, the output feedback pin FB of the voltage conversion chip U1 is respectively connected to the first end of the resistor R3 and the first end of the resistor R1, and the second end of the resistor R3 is respectively connected to the ground terminal GND and the power ground of the voltage conversion chip U1, The second end of the resistor R1 is used as the output end of the voltage conversion circuit, which is respectively connected to the second end of the inductor L1, the first end of the capacitor C3, and the first end of the capacitor C4. The second end of the capacitor C3 and the first end of the capacitor C4 are connected to each other. The two ends are respectively connected to the power ground. In this embodiment, the output voltage is controlled by setting the resistance R1 and the resistance R3. The output voltage can be expressed as: VOUT=0.6*(1+R1/R3). In this embodiment, the resistance R1 and the resistance are set. The value of R3 makes the voltage conversion circuit output 3.3V to supply power to the WIFI module and the main control module.

In some embodiments, the image acquisition module includes a DSP processing module and a sensor. Referring to FIG. 3, the above-mentioned voltage conversion circuit is set to multiple outputs to supply power to the DSP processor and the sensor at the same time, according to different specific settings of the power supply object. The resistance value of the output adjustment resistor (equivalent to changing the value of the resistor R1 and the resistor R3) can correspond to the specific output voltage. In this embodiment, by setting a three-output voltage conversion circuit, the output 3.3V is the WIFI module and the main control module Power supply, output 1.8V to supply power for the sensor, and output 1V to supply power for the DSP processor. Obviously, in other similar situations, correspondingly adding multiple outputs to supply power to different devices is also a technical solution protected by the present invention.

In some embodiments, the solar energy conversion module includes a solar energy collection unit, a rectifier unit, and a charging switch control unit. Among them, the solar energy collection unit converts solar energy into electric energy and then rectifies the energy by the rectifier unit, and the electric energy output by the rectifier unit is controlled by the charging switch control unit to charge the energy storage battery. Specifically, referring to FIG. 4, the solar energy collection unit in this embodiment includes a polysilicon plate SOLAR1, the rectifier unit includes a first rectifier diode D1, and the charging switch control unit includes a first MOS tube Q1, a first resistor R12, and a second resistor R51. , The third resistor R19, the first diode D6 and the switch control chip U5. In this embodiment, the switch control chip is an LN61C-N3602MR chip. The output terminal of the polysilicon plate SOLAR1 is connected to the anode of the first rectifier diode D1, and the cathode of the first rectifier diode D1 is respectively connected to the first end of the first resistor R12 and the source of the first MOS transistor Q1. The first resistor R12 The second end of the second resistor R51 is connected to the first end of the second resistor R51 and the gate of the first MOS transistor Q1. The second end of the second resistor R51 is connected to the output end of the opening control chip U5. The output end of the power module VCC_BAT Connected to the anode of the first diode D6, the cathode of the first diode D6 is respectively connected to the first end of the third resistor R19 and the input end of the switch control chip U5, the second end of the third resistor R19, the switch control The ground terminal of the chip U5 is respectively connected to the power ground, and the drain of the first MOS transistor Q1 is connected to the energy storage battery as the output terminal of the solar energy conversion module for charging the energy storage battery. By providing the above-mentioned solar energy conversion module, the overcharge and overdischarge of the energy storage battery can be prevented, and the electric energy converted by the polysilicon plate can be boosted to charge the energy storage battery.

In addition, referring to FIG. 5, in some embodiments, multiple polysilicon panels may be provided for solar energy harvesting and multiple rectifier diodes may be provided to rectify the current output by the multiple polysilicon panels. The implementation process principle and the above-mentioned solar energy conversion module may be mutually compatible. Refer to the correspondence, so I won’t repeat it here.

6, in some embodiments, the external charging output module of the solar camera includes a charging transformer chip IC100, capacitors C101 to 108, resistors R101, resistors R102, light emitting diodes D101, inductors L101, and a charging output interface. In this embodiment, the charging and transforming chip IC100 is an IP5305 chip. Specifically, the first end of the capacitor C101 is respectively connected to the first end of the resistor R101, the first end of the capacitor C103, and the VIN pin of the charging and transforming chip IC100, and the energy storage battery BAT is respectively connected to the charging and transforming chip IC100LED1 pins, The anode of the light emitting diode D101, the first end of the inductor L101, and the first end of the resistor R102 are connected, and the cathode of the light emitting diode D101 is connected to the second end of the capacitor C101, the second end of the resistor R101, the second end of the capacitor C103, and the charging The PGND pin of the transformer IC100 is connected to the power ground, the second end of the inductor L101 is connected to the SW pin of the charging transformer IC100, and the second end of the resistor R102 is connected to the BAT pin and the capacitor of the charging transformer IC100. The first end of C104 is connected, and the second end of capacitor C104 is respectively connected to the second end of capacitor C105, the second end of capacitor C106, the second end of capacitor C107, the second end of capacitor C108, and the power ground. The VOUT pin of the charging transformer chip IC100 is connected to the first end of the capacitor C106, the first end of the capacitor C107, the first end of the capacitor C108, and the charging output interface J101. The charging output interface J101 is a TYPE-A interface, namely USB interface. In this embodiment, a charging transformer chip IC100 is provided to boost the voltage output by the energy storage battery to 5V and output it to the charging output interface J101 to supply power to the external electronic device.

7 and 8, in the embodiment of the present invention, the solar camera includes an external power input circuit, the external power input circuit is connected to the energy storage battery, used to transmit the power of the external input power to the power module, specifically, the external power input The circuit includes an external power input interface, an overvoltage protection unit, a voltage stabilization filter unit, and a charging management unit; in the embodiment of the present invention, the external power interface is the first USB interface, the overvoltage protection unit is the first bidirectional diode D4, and the voltage stabilization filter The unit includes a first capacitor C12, a second capacitor C13, and a second diode D2. The charging management unit includes a charging control chip U18 and peripheral circuits. Among them, the charging control chip U18 is a TP4056 chip. Specifically, the voltage output terminal VCC of the first USB interface is respectively connected to the first terminal of the first bidirectional diode D4, the anode of the second diode D2, the VCC pin of the charging control chip U18, and the CE pin of the charging control chip U18. The cathode of the second diode D2 is connected to the first end of the first capacitor C12, the first end of the second capacitor C12, and the system power supply. The second end of the first capacitor C12 and the second end of the second capacitor C12 are connected to each other. The terminal and the second terminal of the first bidirectional diode D4 are respectively connected to the power ground. In the embodiment of the present invention, the peripheral circuit of the charging management unit includes: a light-emitting diode LED13, a resistor R59, a resistor R60, a resistor R61, a capacitor C50, and a capacitor C51; wherein the anode of the light-emitting diode LED13 is respectively connected to the VCC pin of the charging control chip U18 , The CE pin of the charging control chip U18 and the first end of the capacitor C51 are connected, the cathode of the light emitting diode LED13 is connected to the first end of the resistor R60, and the second end of the resistor R60 is respectively connected to the first end of the resistor R61 and the charging control chip U18

The second end of the resistor R61 is connected to the main control module, the PROG pin of the charging control chip U18 is connected to the first end of the resistor R59, and the BAT pin of the charging control chip U18 is connected to the first end of the capacitor C50, respectively. The energy storage battery is connected, the second end of the capacitor C50, the second end of the capacitor C51, and the second end of the resistor R59 are respectively connected to the power ground, and the PAD pin, GND pin, and TEMP pin of the charging control chip U18 are respectively connected to Power ground connection. In the embodiment of the present invention, after the 5V input power is obtained through the external power input interface, the voltage is reduced to 4.2V by the charging control chip U18 to charge the energy storage battery.

Combining the above-mentioned external charging output module and external power input circuit (refer to Figure 6 to Figure 8), the VIN pin of the charging transformer chip IC100 is connected to the VCC pin of the charging control chip U18 and the CE of the charging control chip U18 respectively. The pin connection can continue to charge the energy storage battery while the energy storage battery is being discharged.

In addition, in some embodiments, the solar camera is also provided with an infrared LED light, an infrared sensor circuit, and a human body sensor circuit. The infrared circuit senses ambient light by using a photodiode, and sends the sensing signal to the main control module. The received induction signal controls the turning on or off of the infrared LED light. The human body sensing circuit obtains human body temperature information through infrared detection and transmits it to the main control module, and the main control module controls the solar camera of the embodiment of the present invention to enter the working mode. The infrared LED lamp, infrared sensor circuit, and human body sensor circuit described in this embodiment can all be applied to solar cameras using existing mature technologies, with the purpose of making the solar cameras more energy-saving and beneficial to prolonging the working time of the solar cameras. In the embodiment of the present invention, the main control module is a MB95F636KPMC-G-UNE2 chip, and its specific pin diagram can refer to FIG. 9.

In summary, a solar camera in the embodiment of the present invention is provided with a solar conversion module for collecting solar energy and converting it into electric energy and then transmitting it to the power module. The power module is connected to the main control module and the external charging output module respectively, and the power module passes through After the external charging output module is connected to the external electronic device, the solar camera can charge the external electronic device; it solves the technical problem that the camera needs an external power source to work in the prior art and cannot provide the charging function for the external electronic device. A solar camera capable of self-powered and externally powered.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. Kind of change. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

Claims

A solar camera is characterized by comprising: a solar conversion module, a power supply module, a main control module, an image acquisition module and an external charging output module;

The main control module is connected with the image acquisition module to control the working state of the image acquisition module;

The solar energy conversion module is connected to the input end of the power module, so that the solar energy conversion module converts solar energy into electric energy and transmits it to the power module;

The power supply module is respectively connected to the main control module and the external charging output module, and supplies power to the main control module and the external charging output module, respectively.
The solar camera of claim 1, wherein the solar camera further comprises a wireless transmission module;

The power supply module is connected to the wireless transmission module and is used to provide working power for the wireless transmission module;

The main control module is connected to the wireless transmission module and is used to control the working state of the wireless transmission module.
The solar camera according to claim 2, wherein the power module includes a voltage conversion circuit and an energy storage battery;

The energy storage battery is respectively connected to the voltage conversion circuit and the external charging output circuit;

The voltage conversion circuit is respectively connected with the main control module and the wireless transmission module.
The solar camera according to claim 2 or 3, wherein the wireless transmission module is a WIFI module.
The solar camera according to any one of claims 1 to 3, wherein the solar energy conversion module comprises: a solar energy collection unit, a rectifier unit, and a charging switch control unit;

The solar energy collection unit is connected to the rectification unit, so that the solar energy collection unit converts solar energy into electric energy and then performs rectification processing;

The rectifier unit is connected to the charging switch control unit, and the charging switch control unit is connected to the power supply module for charging the power supply module.
The solar camera of claim 5, wherein the solar energy collection unit includes a polysilicon plate, the rectifier unit includes a first rectifier diode, and the charging switch control unit includes a first MOS tube, a first resistor, The second resistor, the third resistor, the first diode and the switch control chip; the output end of the polysilicon plate is connected to the cathode of the first rectifier diode, and the anode of the first rectifier diode is connected to the first rectifier diode respectively. The first end of the resistor is connected to the source of the first MOS transistor, and the second end of the first resistor is respectively connected to the first end of the second resistor and the gate of the first MOS transistor. The second end of the two resistors is connected to the output end of the switch control chip, the output end of the power module is connected to the anode of the first diode, and the cathode of the first diode is connected to the first diode respectively. The first end of the three resistors are connected to the input end of the switch control chip, the second end of the third resistor and the ground end of the switch control chip are respectively connected to the power ground, and the drain of the first MOS transistor Connect with the input end of the power module.
The solar camera according to any one of claims 1 to 3, wherein the solar camera further comprises an external power input circuit;

The external power input circuit is connected to the power module, and is used to transmit the electric energy of the external input power to the power module.
The solar camera according to claim 7, wherein the external power input circuit comprises: an external power input interface, an overvoltage protection unit, a voltage stabilizing filter unit, and a charging management unit;

The external power input interface is respectively connected with the overvoltage protection unit, the voltage stabilization filter unit and the charging management unit;

The charging management unit is connected to the power supply module and is used for charging the power supply module.
The solar camera according to claim 8, wherein the external power interface is a first USB interface, the overvoltage protection unit is a first bidirectional diode, and the voltage stabilizing filter unit includes a first capacitor, a second A capacitor and a second diode, the charging management unit includes a charging control chip, and the voltage output terminal of the first USB interface is connected to the first terminal of the first bidirectional diode and the anode of the second diode respectively. , The input terminal of the charging control chip is connected, the cathode of the second diode is respectively connected to the first terminal of the first capacitor, the first terminal of the second capacitor, and the system power supply. The second end of the capacitor, the second end of the second capacitor, and the second end of the first bidirectional diode are respectively connected to the power ground, and the output end of the charging management chip is connected to the input end of the power module.
The solar camera according to any one of claims 1 to 3, wherein the main control module is a MB95F636KPMC-G-UNE2 chip.