Outdoor equipment power supply control circuit, outdoor equipment power supply system and outdoor equipment

Abstract

The present invention discloses an outdoor equipment power supply control circuit, an outdoor equipment power supply system and an outdoor equipment. The outdoor equipment includes an outdoor equipment load. The outdoor equipment power supply control circuit includes: a power input port for accessing a power supply device; a power output port, electrically connected to the outdoor equipment load; a system power supply detection control circuit, respectively connected to the power input port and the power output port; a system power supply detection control circuit, for detecting the type of power supply device accessed by the power input port, and controlling the on / off between the power input port and the power output port according to the detected type of power supply device. The present invention solves the problem that when the power supply device is insufficient to support power supply to the outdoor equipment load, the outdoor equipment load is directly powered off, and even data is lost in severe cases.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic circuits, and in particular to an outdoor equipment power supply control circuit, an outdoor equipment power supply system and outdoor equipment. Background Art

[0002] The loads in outdoor equipment can be adapted to a variety of power supply devices, such as power adapters, solar panels, and mobile power supplies, etc.; the current common state is that the power adapter and solar panel share a charging port. Due to various factors, power supply devices such as solar panels may not be able to support the system power supply for a long time. When the battery does not exist or the power is insufficient, the system will lose power and data will be lost. Summary of the invention

[0003] The main purpose of the present invention is to propose an outdoor equipment power supply control circuit, an outdoor equipment power supply system and an outdoor equipment, aiming to solve the problem that when the power supply equipment is insufficient to support the power supply to the outdoor equipment load, the outdoor equipment load will directly lose power, and even data will be lost in serious cases.

[0004] To achieve the above object, the present invention proposes an outdoor equipment power supply control circuit, which is applied to outdoor equipment. The outdoor equipment includes an outdoor equipment load. The outdoor equipment power supply control circuit includes:

[0005] Power input port, used to connect to power supply equipment;

[0006] A power output port, electrically connected to an outdoor equipment load;

[0007] The system power supply detection control circuit is connected to the power input port and the power output port respectively; the system power supply detection control circuit is used to detect the type of power supply device connected to the power input port, and control the on / off between the power input port and the power output port according to the detected type of power supply device.

[0008] Optionally, the system power supply detection control circuit is specifically used to control the disconnection of the power input port from the power output port when it is detected that the power supply device connected to the power input port is a solar panel;

[0009] When it is detected that the power supply device connected to the power input port is a mobile power supply or a power adapter, the power input port is controlled to be electrically connected to the power output port to supply power to the outdoor device load.

[0010] Optionally, the outdoor equipment power supply control circuit further includes:

[0011] An energy storage system, wherein the energy storage system is connected to the power input port and the power output port respectively, and the energy storage system is used to store the electric energy output by the power supply device.

[0012] Optionally, the system power supply detection control circuit is also used to detect the amount of electricity stored in the energy storage system when it is detected that the power supply device connected to the power input port is a solar panel, and when the amount of electricity stored in the energy storage system is greater than or equal to a first electricity threshold, control the electrical connection between the power input port and the power output port to control the solar panel to supply power to the outdoor equipment load.

[0013] Optionally, the energy storage system comprises:

[0014] A charging chip and an energy storage battery, wherein the input end of the charging chip is connected to the power input port, and the output end of the charging chip is connected to the energy storage battery.

[0015] Optionally, the system power supply detection control circuit is further used to control the energy storage system to supply power to the outdoor equipment load when it is detected that the power supply device connected to the power input port is a solar panel.

[0016] Optionally, the system power supply detection control circuit is further used to detect the power of the solar panel when it is detected that the power supply device connected to the power input port is a solar panel, and control the power input port to be electrically connected to the power output port when it is detected that the power supply device connected to the power input port is a solar panel.

[0017] Optionally, the outdoor equipment power supply control circuit further includes an equipment type identification port;

[0018] The system power supply detection control circuit comprises:

[0019] A power supply control switch, arranged in series between the power input port and the power output port;

[0020] A detection trigger switch, wherein a controlled end of the detection trigger switch is connected to the device type identification port, and an output end of the detection trigger switch is connected to a controlled end of the power supply control switch; the detection trigger switch is used to output a shutdown trigger signal when triggered by a connected solar panel, so as to control the power supply control switch to disconnect the electrical connection between the power input port and the power output port; and to output a start trigger signal when triggered by a connected mobile power supply or power adapter, so as to connect the electrical connection between the power input port and the power output port by the power supply control switch.

[0021] The present invention also provides an outdoor equipment power supply system, comprising a solar panel and the outdoor equipment power supply control circuit as described above;

[0022] The solar panel is connected to the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, it outputs a first indication signal to the outdoor equipment power supply control circuit;

[0023] The outdoor equipment power supply control circuit is used to disconnect the electrical connection between the solar panel and the outdoor equipment load when the first marking signal is received.

[0024] The present invention also provides an outdoor device, comprising a solar panel and the outdoor device power supply control circuit as described above;

[0025] Alternatively, it includes the outdoor equipment power supply system as described above.

[0026] The present invention detects the type of power supply device connected to the power input port by setting a system power supply detection control circuit, and controls the on / off between the power input port and the power output port according to the detected type of power supply device, so as to disconnect the electrical connection between the power supply device and the outdoor device load when it is detected that the connected power supply device is a device that cannot directly power the outdoor device load. The present invention solves the problem that when the power supply device is insufficient to support power supply to the outdoor device load, the outdoor device load is directly powered off, and even data is lost in severe cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A functional structure diagram of an embodiment of a power supply control circuit for outdoor equipment according to the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the circuit structure of an embodiment of a power supply control circuit for outdoor equipment.

[0030] Description of Figure Numbers:

[0031] Label name Label name 10 System power supply detection control circuit VBUS_5V Power input port 11 Power supply control switch VBUS_5V_P Power output port 12 Detection trigger switch USB_P Device Type Identification Port 20 Energy Storage System U1 Charging chip 30 Electrical connector BT1 Energy Storage Batteries 100 Outdoor equipment load

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] The present invention provides an outdoor equipment power supply control circuit, which is applied to outdoor equipment. The outdoor equipment includes an outdoor equipment load 100 .

[0038] Reference Figure 1 and Figure 2 In one embodiment of the present invention, the outdoor equipment power supply control circuit includes:

[0039] Power input port VBUS_5V, used to connect to power supply equipment;

[0040] The power output port VBUS_5V_P is electrically connected to the outdoor equipment load 100;

[0041] The system power supply detection control circuit 10 is connected to the power input port VBUS_5V and the power output port VBUS_5V_P respectively; the system power supply detection control circuit 10 is used to detect the type of power supply device connected to the power input port VBUS_5V, and control the on / off between the power input port VBUS_5V and the power output port VBUS_5V_P according to the detected type of power supply device.

[0042] In this embodiment, the outdoor device can be a doorbell, a surveillance camera, a speaker or other outdoor device. The outdoor device can also be provided with an electrical connector 30, which can be electrically connected to the power supply device. The electrical connector 30 can be implemented using a USB interface, specifically a Type-C interface, a mini USB interface, a Type-A interface, a Type-B interface or other electrical connectors 30 that can be charged. The electrical connector 30 has at least a power input port VBUS_5V. The electrical connector 30 can be connected to different power supply devices, such as solar panels, power adapters, mobile power supplies, etc., that is, the power supply devices of this embodiment, such as power adapters and solar panels, can share a Type-C interface at the input end, so when one of the two exists, all power supply paths are the same, and both can power the entire system and charge the energy storage system 20 in the outdoor device, such as a battery; when working, the power adapter and the mobile power supply can provide stable power to the outdoor device load 100. The solar panel can convert solar energy into direct current power through the photovoltaic effect of solar cells and output it to the outdoor device through the power input port VBUS_5V, so as to power the outdoor device load 100 in the outdoor device. It is understandable that the power that solar panels can generate is limited, and the power generated by solar panels will also fluctuate due to the weather and the intensity of sunlight. In addition, due to the area of ​​the solar panels, the power of the solar panels is not too large, and the solar panels cannot support the power supply of the outdoor device load 100 for a long time. Once the battery does not exist or the battery power is insufficient, the outdoor device load 100 will lose power and cannot work normally, and in serious cases, even cause data loss.

[0043] To this end, this embodiment sets a system power supply detection control circuit 10, the input end of the power supply detection control circuit is connected to the power input port VBUS_5V, and the output end of the power supply detection control circuit is connected to the power output port VBUS_5V_P of the electrical connector 30. When the system power supply detection control circuit 10 controls the power input port VBUS_5V and the power output port VBUS_5V_P to be electrically connected, the power supply device can be electrically connected to the outdoor device load 100 through the power input port VBUS_5V and the power output port VBUS_5V_P, so that the power supply device supplies power to the outdoor device load 100. On the contrary, when the system power supply detection control circuit 10 controls the power input port VBUS_5V and the power output port VBUS_5V_P to be electrically disconnected, a current loop cannot be formed between the power supply device and the outdoor device load 100, so that the power supply device cannot directly supply power to the outdoor device load 100.

[0044] The system power supply detection control circuit 10 can detect the type of power supply device connected to the power input port VBUS_5V by judging whether the type of power supply device is a solar panel, a power adapter or a mobile power supply. Specifically, the system power supply detection control circuit 10 can detect the current voltage value of the external device connected to the electrical connector 30, and the system power supply detection control circuit 10 can identify the type of power supply device of the current peripheral device according to the current voltage value and the mapping relationship between the preset different voltage values ​​and different interface types. It should be noted that when different power supply devices are connected to the electrical connector 30, the voltage value detected by the voltage detection circuit will be different. Therefore, in this embodiment, the corresponding relationship between each power supply device type and the voltage value can be pre-defined, and the type of power supply device connected can be determined based on the mapping relationship. In a specific embodiment, the electrical connector 30 can be provided with a device type identification port USB_P, and the system power supply detection control circuit 10 can determine the type of power supply device connected according to the level of the device type identification port USB_P, or the different voltage values. The system power supply detection control circuit 10 determines whether the connected power supply device is a device that can directly supply power to the outdoor device load 100 according to the detected power supply device type. If so, the power supply input port VBUS_5V is controlled to be electrically connected to the power output port VBUS_5V_P, thereby controlling the power supply device connected to the power input port VBUS_5V to directly supply power to the outdoor device load 100. Otherwise, the power supply input port VBUS_5V is controlled to be electrically disconnected from the power output port VBUS_5V_P. At this time, the power supply device connected to the power input port VBUS_5V will not directly supply power to the outdoor device load 100.

[0045] The present invention detects the type of power supply device connected to the power input port VBUS_5V by setting a system power supply detection control circuit 10, and controls the on / off between the power input port VBUS_5V and the power output port VBUS_5V_P according to the detected power supply device type, so as to disconnect the electrical connection between the power supply device and the outdoor device load 100 when it is detected that the connected power supply device is a device that cannot directly power the outdoor device load 100. The present invention solves the problem that when the power supply device is insufficient to support power supply to the outdoor device load 100, the outdoor device load 100 is directly powered off, and even data is lost in severe cases.

[0046] Reference Figure 1 and Figure 2 In one embodiment, the system power supply detection control circuit 10 is specifically used to control the disconnection of the power input port VBUS_5V and the power output port VBUS_5V_P when it is detected that the power supply device connected to the power input port VBUS_5V is a solar panel;

[0047] When it is detected that the power supply device connected to the power input port VBUS_5V is a mobile power supply or a power adapter, the power input port VBUS_5V is controlled to be electrically connected to the power output port VBUS_5V_P to supply power to the outdoor device load 100 .

[0048] In this embodiment, the power supply of the solar panel is unstable, so the solar panel is defined as a power supply device that cannot directly supply power to the outdoor device load 100, while the power output of the power adapter and the mobile power supply is relatively stable, so the power adapter and the mobile power supply are power supply devices that directly supply power to the outdoor device load 100. When the system power supply detection control circuit 10 determines that the connected power supply device is a mobile power supply or a power adapter, the power input port VBUS_5V is controlled to be electrically connected to the power output port VBUS_5V_P, and the mobile power supply or the power adapter can be electrically connected to the outdoor device load 100 through the power input port VBUS_5V and the power output port VBUS_5V_P, so that the power supply device supplies power to the outdoor device load 100. When the system power supply detection control circuit 10 determines that the connected power supply device is a solar panel, the power input port VBUS_5V is controlled to be disconnected from the power output port VBUS_5V_P, and a current loop cannot be formed between the solar panel and the outdoor device load 100, so that the solar panel cannot directly supply power to the outdoor device load 100.

[0049] Reference Figure 1 and Figure 2 In one embodiment, the outdoor equipment power supply control circuit further includes:

[0050] The energy storage system 20 is connected to the power input port VBUS_5V and the power output port VBUS_5V_P respectively, and the energy storage system 20 is used to store the electric energy output by the power supply device.

[0051] In this embodiment, in the outdoor equipment power supply control circuit, depending on the connected power supply equipment, the energy storage system 20 may be set or not set. For example, when the connected power supply equipment is a power adapter, the energy storage system 20 may be set. When the connected power supply equipment is a mobile power supply or a solar panel, the energy storage system 20 may be set. The energy storage system 20 is directly connected to the power input port VBUS_5V. When a power supply equipment is connected, the energy storage system 20 can store the electric energy provided by the power supply equipment. At this time, the power supply equipment may be one or a combination of solar panels, mobile power supplies and power adapters.

[0052] Reference Figure 1 and Figure 2 In one embodiment, the system power supply detection control circuit 10 is further used to detect the amount of electricity stored in the energy storage system 20 when it is detected that the power supply device connected to the power input port VBUS_5V is a solar panel, and when the amount of electricity stored in the energy storage system 20 is greater than or equal to a first electricity threshold, control the electrical connection between the power input port VBUS_5V and the power output port VBUS_5V_P to control the solar panel to supply power to the outdoor device load 100.

[0053] In this embodiment, when the connected power supply device is a solar panel, the solar panel gives priority to providing power to the energy storage system 20. When the amount of power stored in the energy storage system 20 is sufficient (greater than or equal to the first power threshold), or the solar panel charges the energy storage system 20, so that the amount of power stored in the energy storage system 20 is sufficient (greater than or equal to the first power threshold), the power input port VBUS_5V is controlled to be electrically connected to the power output port VBUS_5V_P, so that the solar panel can provide power to the outdoor device load 100. At this time, the solar panel can continue to provide power to the energy storage system 20, and also provide power to the outdoor device load 100, until the energy storage system 20 is full, the energy storage system 20 can stop receiving the power output by the solar panel, the energy storage system 20 turns off its own charging function, and the solar panel only provides power to the outdoor device load 100. Among them, the first power threshold can be set to any value between 95% and 100%. It is understandable that when the amount of electricity stored in the energy storage system 20 is greater than or equal to the first electricity threshold, the power of the solar panel can also be detected, and whether the solar panel can provide stable electricity to the outdoor device load 100 is determined according to the current power of the solar panel. If so, the power input port VBUS_5V is controlled to be electrically connected to the power output port VBUS_5V_P. Otherwise, it means that the power of the solar panel is less than the power required by the outdoor device load 100, that is, the energy storage system 20 can only maintain one of charging or powering the outdoor device load 100 at the same time. At this time, the energy storage system 20 is powered first, that is, the power input port VBUS_5V is controlled to be electrically disconnected from the power output port VBUS_5V_P. In this embodiment, the power of the solar panel can be determined by detecting the current light intensity through an ambient light sensor, or by detecting the current output power of the solar panel through a power meter. For example, during a period of strong light and high power, the solar panel can be controlled to supply power to both the outdoor equipment load 100 and the energy storage system 20. During a period of weak light and low power, the solar panel can be controlled to supply power only to the energy storage system 20.

[0054] Reference Figure 1 In one embodiment, the energy storage system 20 includes:

[0055] A charging chip U1 and an energy storage battery BT1, wherein the input end of the charging chip U1 is connected to the power input port VBUS_5V, and the output end of the charging chip U1 is connected to the energy storage battery BT1.

[0056] The charging chip U1 is used to convert the electric energy output by the power supply device into the electric energy required by the outdoor equipment and then output it to the energy storage battery BT1 for storage. Specifically, the charging chip U1 can perform DC-DC conversion, filtering, and other processing on the electric energy connected to the power input terminal of the electrical connector 30. The charging chip U1 can adjust the charging current and charging voltage during charging, so that the charging of the energy storage battery BT1 can be in different stages. Optionally, the charging process of the charging chip U1 includes but is not limited to a pre-charging stage, a constant current charging stage, and a constant voltage charging stage. The pre-charging stage is used to pre-charge (recovery charging) fully discharged battery cells. Pre-charging is usually performed when the battery voltage is lower than about 3V. In the constant current charging stage, when the battery voltage rises to a predetermined charging threshold, for example 3V, the charging current is increased for constant current charging. In the constant current charging stage, the battery voltage gradually increases with the constant current charging process.

[0057] Reference Figure 1 and Figure 2 In one embodiment, the system power supply detection control circuit 10 is also used to control the energy storage system 20 to supply power to the outdoor device load 100 when it is detected that the power supply device connected to the power input port VBUS_5V is a solar panel.

[0058] In this embodiment, in the process of charging the energy storage system 20 by the solar panel, in order to maintain the normal operation of the outdoor device load 100, the energy storage system 20 can be used to power the outdoor device load 100 in this embodiment, and when the power adapter is connected, the power adapter simultaneously powers the energy storage system 20 and the outdoor device load 100, and at this time the energy storage system 20 does not power the outdoor device load 100. It can be understood that when the power supply device connected to the electrical connector 30 is a solar panel, in order to ensure the stable power supply of the outdoor device load 100, the energy storage system 20 is preferentially controlled in this embodiment to power the outdoor device load 100. However, in actual application, the power of the energy storage system 20 may be too low to support the power supply of the outdoor device load 100. In order to ensure that the outdoor equipment load 100 will not lose power due to too low power of the energy storage system 20, or even lose data in serious cases, the present embodiment can first determine the amount of power stored in the energy storage system 20. In order to prevent the outdoor equipment load 100 from being unable to work normally due to low power stored in the energy storage system 20, when the power of the energy storage system 20 is lower than the minimum working power threshold, that is, the power of the energy storage system 20 is insufficient, the energy storage system 20 is powered first, and the power supply function of the energy storage system 20 to the outdoor equipment load 100 is turned off to prevent the outdoor equipment load 100 from further consuming the power of the energy storage system 20. Therefore, when it is determined that the power supply device connected to the electrical connector 30 is a solar panel, the amount of power stored in the energy storage system 20 is detected, and when the detected amount of power stored in the energy storage system 20 is less than the minimum working power threshold, the energy storage system 20 is controlled to stop supplying power to the outdoor equipment load 100. Specifically, when it is detected that the electrical connector 30 is connected to the power supply device, such as the power supply device is inserted into the Type-C interface of the outdoor device, the power of the energy storage system 20 is detected, and the power of the energy storage system 20 is compared with the minimum working power threshold. When the power stored in the energy system is less than the minimum working power threshold, the energy storage system 20 only receives the power from the solar panels, and does not transmit power to the outdoor device load 100. At the same time, the solar panels only supply power to the energy storage system 20, and do not supply power to the outdoor device load 100. Since the solar panels only supply power to the energy storage system 20, it will not be cut off frequently. The solar panels charge the energy storage system 20 instead of supplying power to the outdoor device load 100, which can improve the endurance of the energy storage system 20. Among them, the minimum working power threshold is the minimum power required for the outdoor device load 100 to work normally. When the outdoor device load 100 is lower than the minimum working power threshold, it cannot work normally.

[0059] In one embodiment, the system power supply detection control circuit 10 may also control the energy storage system 20 to supply power to the outdoor equipment load 100 when the detected power stored in the energy storage system 20 is greater than or equal to a second power threshold.

[0060] In this embodiment, the power of the solar panel cannot maintain the power supply of the outdoor device load 100 and the energy storage system 20 at the same time. When it is determined that the power of the energy storage system 20 is greater than or equal to the second power threshold, the energy storage system 20 can shut down or maintain its own charging function, and at the same time control the energy storage system 20 to supply power to the outdoor device load 100, and continue to judge the power of the energy storage system 20:

[0061] When the power of the energy storage system 20 is less than the second preset power threshold, the energy storage system 20 is controlled to start its own charging function, and at the same time the energy storage system 20 is controlled to stop supplying power to the outdoor equipment load 100, and the energy storage system 20 starts charging at this time;

[0062] When the power of the energy storage system 20 is greater than or equal to the second preset power threshold, the energy storage system 20 is controlled to supply power to the outdoor device load 100 until the power of the energy storage system 20 is less than the second preset power threshold. The second preset power threshold indicates that the power of the energy storage system 20 is about to reach the power value of the minimum working power threshold, which prevents the outdoor device load 100 from continuing to be charged when the energy storage system 20 reaches the minimum working power threshold, causing the energy storage system 20 to directly power off due to low power. And when the power of the energy storage system 20 is less than the second preset power threshold, the microcontroller in the outdoor device load 100 can also be triggered to store data to prevent system data loss due to instantaneous power failure.

[0063] Reference Figure 1 and Figure 2 In one embodiment, the system power supply detection control circuit 10 is further used to detect the power of the solar panel when it is detected that the power supply device connected to the power input port VBUS_5V is a solar panel, and control the power input port VBUS_5V to be electrically connected to the power output port VBUS_5V_P when it is detected that the power of the solar panel is greater than or equal to a first power threshold.

[0064] In this embodiment, the voltage and current outputted by the solar energy obtained by the solar panel after photoelectric conversion are nonlinear. As the sunshine conditions change, the solar panel outputs a larger power of electric energy after photoelectric conversion, that is, when the sunshine is sufficient, the solar panel can absorb more solar energy and convert it into charging electric energy to the greatest extent. When the power of the solar panel is sufficient (greater than or equal to the first power threshold) to meet the requirements of supplying power to the energy storage system 20 and the outdoor equipment load 100 at the same time, the power input port VBUS_5V and the power output port VBUS_5V_P can be controlled to be electrically connected so that the solar energy panel is connected to the outdoor equipment load 100. Once the power of the solar panel is less than the first power threshold, the power input port VBUS_5V and the power output port VBUS_5V_P are controlled to be disconnected electrically. At this time, the power supply device connected to the power input port VBUS_5V only charges the energy storage system 20, and does not directly supply power to the outdoor equipment load 100.

[0065] Reference Figure 2 , in one embodiment, the outdoor equipment power supply control circuit further includes a device type identification port USB_P;

[0066] The system power supply detection control circuit 10 comprises:

[0067] A power supply control switch 11 is arranged in series between the power input port VBUS_5V and the power output port VBUS_5V_P;

[0068] A detection trigger switch 12, wherein the controlled end of the detection trigger switch 12 is connected to the device type identification port USB_P, and the output end of the detection trigger switch 12 is connected to the controlled end of the power supply control switch 11; the detection trigger switch 12 is used to output a shutdown trigger signal when triggered by the connected solar panel, so as to control the power supply control switch 11 to disconnect the electrical connection between the power input port VBUS_5V and the power output port VBUS_5V_P; and when triggered by the connected mobile power supply or power adapter, output a start trigger signal so as to connect the power supply control switch 11 to the electrical connection between the power input port VBUS_5V and the power output port VBUS_5V_P.

[0069] In this embodiment, the power supply control switch 11 can be optionally implemented by a PMOS tube Q14, and the detection trigger switch 12 can be implemented by two switch tubes, an NMOS tube Q15 and a PMOS tube Q16. The gate of the NMOS tube Q15 is connected to the power input terminal and the device type identification port USB_P of the electrical connector 30, and the source of the NMOS tube Q15 is connected to the power input port VBUS_5V through a pull-up resistor R1. The drain of the NMOS tube Q15 is connected to a power access terminal USB_P_BLE that can be connected to a load, such as a microcontroller in the outdoor device load 100, and is connected to the power output terminal VSYS_3V3 of the outdoor device load 100. The voltage of the power output terminal VSYS_3V3 of the outdoor device load 100 is lower than the electric energy voltage connected to the power input port VBUS_5V. In one embodiment, a pull-up resistor R2 can also be provided in series between the power output terminal VSYS_3V3 of the outdoor device load 100 and the power access terminal USB_P_BLE of the microcontroller. The gate of the PMOS tube Q16 is connected to the source of the NMOS tube Q15 and the power input port VBUS_5V, the source of the PMOS tube Q16 is connected to the controlled end of the power supply control switch 11, and the drain of the PMOS tube Q16 is grounded. It can be understood that a pull-down resistor is provided in the solar panel, and the pull-down resistor is connected to the device type identification port USB_P of the electrical connector 30, and the pull-down resistor is connected to the gate of the NMOS tube Q15.

[0070] When a common power adapter is connected, the device type identification port USB_P is connected without a pull-down resistor, and the power input port VBUS_5V outputs a high-level signal to the NMOS tube Q15 through the pull-up resistor R1, that is, the gate voltage of the NMOS tube Q15 is pulled up, and the NMOS tube Q15 is controlled to be turned on, thereby lowering the gate voltage of the PMOS tube Q16, and the PMOS tube Q16 is controlled to be turned on. The gate of the PMOS tube Q14 is pulled down by the low level output by the PMOS tube Q16 and turned on, and the power input terminal VBUS_5V is turned on to the power output terminal VUBS_5V_P, thereby supplying power to the entire outdoor device load 100.

[0071] When the solar panel is inserted, since the device type identification port USB_P has a pull-down resistor, the gate voltage of the NMOS tube Q15 is clamped at a low level, so that the NMOS tube Q15 will not be turned on, and the gate voltage of the PMOS tube Q16 is high (pulled up by the power input terminal VBUS_5V), the PMOS tube Q16 is turned off, and the gate of the PMOS tube Q14 is pulled up by the high level connected to the power input port VBUS_5V and cut off, the power input port VBUS_5V will not be turned on to the power output port VBUS_5V_P, and the solar panel will not supply power to the outdoor device load 100.

[0072] In some embodiments, the system power supply detection control circuit 10 also includes resistors R3 and R4, the resistor R3 is arranged in series between the power input port VBUS_5V and the input end and the controlled end of the power supply control switch 11 (that is, between the source and the gate of the PMOS tube), and the resistor R4 is arranged in series between the controlled end of the power supply control switch 11 and the output end of the detection trigger switch 12 (that is, between the gate of the PMOS tube Q14 and the source of the NMOS tube Q15). This embodiment uses the ID pull-down function based on the ID signal on the solar panel to distinguish the type of power supply equipment connected to the type-c, thereby cutting off the power supply path from the solar panel to the outdoor device load 100, so that the solar panel only supplies power to the charging chip U1 and does not supply power to the outdoor device load 100; and, the system power supply detection control circuit 10 of this embodiment is implemented by MOS tubes Q14, Q15, Q16, resistor R1, etc., and when the outdoor device load 100 is not running, the hardware architecture can also be used to control the disconnection of the outdoor device load 100 from the solar panel path without adding other chips for control. Even when the energy storage system 20 does not exist, the system power supply detection control circuit 10 can be used to cut off the power supply path between the solar panel and the outdoor device load 100, thereby solving the problem of insufficient power supply capacity of the solar panel, causing product failure and blank recorded data.

[0073] Of course, in other embodiments, the system power supply detection control circuit 10 can also be implemented by a microcontroller and a switch tube, such as a single-chip microcomputer, DSP and other microprocessors. The microcontroller can control the on / off of the power supply device and the electrical connector by controlling the on / off of the switch tube. The microcontroller can be integrated with a software program for implementing data analysis and comparison to process the type of power supply equipment detected, the power of the energy storage system 20, and the power data of the solar panel, and generate corresponding control signals to control the on / off of the switch tube.

[0074] The present invention also provides an outdoor equipment power supply system, comprising a solar panel and the outdoor equipment power supply control circuit as described above;

[0075] The solar panel is connected to the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, it outputs a first indication signal to the outdoor equipment power supply control circuit;

[0076] The outdoor equipment power supply control circuit is used to disconnect the electrical connection between the solar panel and the outdoor equipment load 100 when receiving the first marking signal.

[0077] The detailed structure of the outdoor equipment power supply control circuit can refer to the above-mentioned embodiment, which will not be repeated here; it can be understood that since the above-mentioned outdoor equipment power supply control circuit is used in the outdoor equipment power supply system of the present invention, the embodiment of the outdoor equipment power supply system of the present invention includes all technical solutions of all embodiments of the above-mentioned outdoor equipment power supply control circuit, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0078] In this embodiment, a pull-down resistor is provided in the solar panel, and the pull-down resistor is connected to the device type identification port USB_P of the electrical connector 30, and the pull-down resistor is connected to the system power supply detection control circuit 10 in the outdoor device power supply control circuit. When the solar panel is connected to the power input port VBUS_5V of the electrical connector 30, a low-level signal, i.e., a first indication signal, is output to the system power supply detection control circuit 10. When the first indication signal is received, it indicates that the type of power supply device connected to the power input port VBUS_5V is a solar panel. At this time, the power input port VBUS_5V is controlled to be disconnected from the power output port VBUS_5V_P, and a current loop cannot be formed between the solar panel and the outdoor device load 100, so that the solar panel cannot directly supply power to the outdoor device load 100. On the contrary, when a mobile power supply or a power adapter is connected to the power input port of the electrical connector, since no pull-down resistor is provided, a low-level signal will not be output. Therefore, when the power supply device is connected to the electrical connector and the first indication signal is not received, it indicates that the type of power supply device connected to the power input port is a mobile power supply or a power adapter.

[0079] The present invention further proposes an outdoor device, including an outdoor device load 100 and the outdoor device power supply control circuit as described above; or, including the outdoor device power supply system as described above. The detailed structure of the outdoor device power supply control circuit and the outdoor device power supply system can refer to the above embodiment, and will not be repeated here; it can be understood that since the above outdoor device power supply control circuit and the outdoor device power supply system are used in the outdoor device of the present invention, the embodiment of the outdoor device of the present invention includes all technical solutions of all embodiments of the above outdoor device power supply control circuit and the outdoor device power supply system, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0080] In this embodiment, the outdoor equipment load 100 may include but is not limited to outdoor equipment buttons, microcontrollers, outdoor equipment speakers, power management circuits, clock circuits, etc. In some embodiments, the outdoor equipment load 100 may also be provided with a display screen, a wireless communication module, etc. Among them, the power management circuit is connected to the power output port VBUS_5V_P of the outdoor equipment power supply control circuit, and the power management circuit may be provided with multiple output terminals for providing the required working voltage to the outdoor equipment buttons, microcontrollers, outdoor equipment speakers and clock circuits, etc., so as to drive each circuit module to work. The microcontroller may be the control center of the outdoor equipment load 100, and the microcontroller may also be connected to the power supply device through the electrical connector 30 for communication, such as a power adapter, a mobile power supply, etc. During the operation, the power management circuit operates in different modes according to the control signal of the microcontroller, such as standby mode, normal working mode or shutdown, etc. It can be understood that the power supply device may provide 5V or higher power, and the power supply of the microcontroller such as a single-chip microcomputer, a DSP, etc. is usually 3.3V. The power management circuit of the outdoor equipment load 100 can step down the input power and provide the microcontroller with the working voltage required by the microcontroller.

[0081] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An outdoor equipment power supply control circuit, applied to outdoor equipment, wherein the outdoor equipment includes an outdoor equipment load, characterized in that: The outdoor equipment power supply control circuit comprises: Power input port, used to connect to power supply equipment; A power output port, electrically connected to an outdoor equipment load; An energy storage system, the energy storage system is connected to the power input port and the power output port respectively, and the energy storage system is used to store the electric energy output by the power supply device; A system power supply detection control circuit is connected to the power input port and the power output port respectively; the system power supply detection control circuit is used to control the power input port to disconnect electrically from the power output port when it is detected that the power supply device connected to the power input port is a solar panel; when it is detected that the power supply device connected to the power input port is a mobile power supply or a power adapter, control the power input port to connect electrically with the power output port to supply power to the outdoor device load; when it is detected that the power supply device connected to the power input port is a solar panel, detect the amount of electricity stored in the energy storage system, and when the amount of electricity stored in the energy storage system is greater than or equal to a first electricity threshold, control the power input port to connect electrically with the power output port to control the solar panel to supply power to the outdoor device load; And when it is detected that the power supply device connected to the power input port is a solar panel, the amount of electricity stored in the energy storage system is detected, and when the amount of electricity stored in the energy storage system is less than the minimum working power threshold, the energy storage system is controlled to store the electric energy output by the power supply device, and the energy storage system is controlled to stop supplying power to the outdoor equipment load, and the power input port is controlled to disconnect electrically from the power output port.

2. The outdoor equipment power supply control circuit according to claim 1, characterized in that: The energy storage system comprises: A charging chip and an energy storage battery, wherein the input end of the charging chip is connected to the power input port, and the output end of the charging chip is connected to the energy storage battery.

3. The outdoor equipment power supply control circuit according to claim 1, characterized in that: The system power supply detection control circuit is also used to control the energy storage system to supply power to the outdoor equipment load when it is detected that the power supply device connected to the power input port is a solar panel.

4. The outdoor equipment power supply control circuit according to claim 1, characterized in that: The system power supply detection control circuit is also used to detect the power of the solar panel when it is detected that the power supply device connected to the power input port is a solar panel, and control the power input port to be electrically connected to the power output port when it is detected that the power of the solar panel is greater than or equal to a first power threshold.

5. The outdoor equipment power supply control circuit according to any one of claims 1 to 4, characterized in that: The outdoor equipment power supply control circuit also includes an equipment type identification port; The system power supply detection control circuit comprises: A power supply control switch, arranged in series between the power input port and the power output port; A detection trigger switch, wherein a controlled end of the detection trigger switch is connected to the device type identification port, and an output end of the detection trigger switch is connected to a controlled end of the power supply control switch; the detection trigger switch is used to output a shutdown trigger signal when triggered by a connected solar panel, so as to control the power supply control switch to disconnect the electrical connection between the power input port and the power output port; and to output a start trigger signal when triggered by a connected mobile power supply or power adapter, so as to connect the electrical connection between the power input port and the power output port by the power supply control switch.

6. An outdoor equipment power supply system, characterized in that: It comprises a solar panel and an outdoor equipment power supply control circuit as claimed in any one of claims 1 to 5; The solar panel is connected to the outdoor equipment power supply control circuit, and when the solar panel is connected to the outdoor equipment power supply control circuit, it outputs a first indication signal to the outdoor equipment power supply control circuit; The outdoor equipment power supply control circuit is used to disconnect the electrical connection between the solar panel and the outdoor equipment load when the first marking signal is received.

7. An outdoor device, characterized in that: It comprises a solar panel and an outdoor equipment power supply control circuit as claimed in any one of claims 1 to 5; Alternatively, it comprises the outdoor equipment power supply system as claimed in claim 6.

Images