Novel solar charging management driver with radar sensing function

Abstract

The utility model is suitable for the technical field of radar detection, and provides a novel solar charging management driver with a radar sensing function. Comprising an MCU circuit, a solar panel, a radar circuit, a charging control unit, a battery, an LED lamp panel and an LED control unit, the radar circuit is connected with the MCU circuit and the solar panel, the charging control unit is connected with the solar panel, the battery and the MCU circuit, and the LED control unit is connected with the MCU circuit and the LED lamp panel. By adopting the mode, a relatively stable sensing distance can be kept without being influenced by the environment temperature, the use experience is improved, and the maintenance work of daily use is reduced.

Description

Technical Field

[0001] The present application belongs to the field of radar detection technology, and more specifically, relates to a novel solar charging management driver with radar sensing function. Background Art

[0002] The induction night light can bring great lighting convenience when getting up at night. It can solve the problem of no light when resting and the need for light when getting up. Therefore, as people's requirements for quality of life increase, the demand for induction night lights is increasing.

[0003] Existing induction night lights are mainly based on passive infrared detector (PIR) technology and dry cell battery technology. PIR technology is greatly affected by temperature. When the ambient temperature is close to human body temperature, the sensing distance is unstable or there is no sensing distance. The disadvantage of dry cell batteries is that they have low power and need to be replaced frequently, which is not economical. People will forget to change the batteries after a long time and stop using them. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a novel solar charging management driver with radar sensing function, aiming to solve the technical problems of unstable sensing and inconvenient use in the prior art.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a new type of solar charging management driver with radar sensing function is provided, including: an MCU circuit, a solar panel, a radar circuit, a charging control unit, a battery, an LED light board and an LED control unit, the radar circuit is connected to the MCU circuit and the solar panel, the charging control unit is connected to the solar panel, the battery and the MCU circuit, and the LED control unit is connected to the MCU circuit and the LED light board.

[0006] Optionally, the MCU circuit includes an MCU and a battery voltage detection circuit arranged in the MCU, the battery voltage detection circuit is used to detect the voltage of the battery, and the MCU is used to perform control according to the detected voltage of the battery.

[0007] Optionally, the solar charging management driver further includes a manual switch, wherein the first end and the third end of the manual switch are connected together and connected to the MCU, and the second end and the fourth end of the manual switch are connected together and grounded.

[0008] Optionally, the charging control unit includes: a first switching tube, a first resistor and a second resistor, the first end of the first switching tube is connected to one end of the first resistor and is connected to the MCU through the second resistor, the other end of the first resistor is grounded and connected to the negative pole of the solar panel and the negative pole of the battery, the third end of the first switching tube is connected to the positive pole of the solar panel, and the second end of the first switching tube is connected to the positive pole of the battery and the positive pole of the LED light board.

[0009] Optionally, the LED control unit includes: a second switch tube, a third resistor and a fourth resistor, the first end of the second switch tube is connected to the MCU through the third resistor and is grounded through the fourth resistor, the third end of the second switch tube is connected to the negative pole of the LED light board, and the second end of the second switch tube is grounded.

[0010] Optionally, the first switch tube and the second switch tube are NMOS tubes, the first end is a gate of the NMOS tube, the second end is a drain of the NMOS tube, and the third end is a source of the NMOS tube.

[0011] Optionally, the radar circuit includes: a radar chip, a fifth resistor and a sixth resistor, one end of the fifth resistor is connected to the positive pole of the solar panel, the other end of the fifth resistor is connected to the radar chip and grounded through the sixth resistor, and the radar chip communicates with the MCU via IIC.

[0012] Optionally, the radar circuit further includes a seventh resistor and a first capacitor, one end of the seventh resistor is connected to the positive electrode of the battery, the other end of the seventh resistor is connected to the radar chip and is grounded through the first capacitor.

[0013] Optionally, the radar circuit further includes an antenna, which is communicatively connected to the radar chip.

[0014] Optionally, the radar circuit also includes: an eighth resistor, a ninth resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor; the first pin of the radar chip is grounded through the second capacitor and connected to the first end of the third capacitor through the eighth resistor; the second pin of the radar chip is grounded through the fourth capacitor and connected to the second end of the third capacitor through the ninth resistor, the third pin of the radar chip is connected to the first end of the third capacitor through the fifth capacitor, and the fourth pin of the radar chip is connected to the second end of the third capacitor through the sixth capacitor.

[0015] The beneficial effect of the new solar charging management driver with radar sensing function provided by the present application is that: compared with the existing technology, the new solar charging management driver with radar sensing function of the present application applies radar Doppler technology plus lithium battery self-charging technology, and maintains a relatively stable sensing distance without being affected by ambient temperature. Through solar self-charging technology, the lithium battery can be automatically charged under light conditions when other lighting is turned on during the day or at night, thereby improving the user experience and reducing the maintenance work of daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical features of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a novel solar charging management driver with radar sensing function provided in an embodiment of the present application;

[0018] Figure 2 A connection diagram of the MCU circuit in the novel solar charging management driver with radar sensing function provided in an embodiment of the present application;

[0019] Figure 3 This is a connection diagram of a radar circuit in a novel solar charging management driver with radar sensing function provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and Examples. The following examples are only used to illustrate the present application, but are not used to limit the scope of protection of the present application. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without paying creative work should all belong to the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In the description of this application, it should be understood that the numbers in this document, such as "first", "second", etc., are only used to distinguish the objects described, have no sequential or technical meaning, and cannot be understood as stipulating or implying the importance of the objects described.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In the description of this application, the term "plurality" refers to two or more than two. In addition, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0026] Reference Figure 1 In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a new type of solar charging management driver with radar sensing function, including: an MCU circuit, a solar panel, a radar circuit, a charging control unit, a battery, an LED light board and an LED control unit, the radar circuit is connected to the MCU circuit and the solar panel, the charging control unit is connected to the solar panel, the battery and the MCU circuit, and the LED control unit is connected to the MCU circuit and the LED light board.

[0027] The battery of this application is preferably a 18650 battery. The MCU circuit communicates with the radar circuit through IIC. The radar circuit senses the movement of people and detects the ambient light intensity by the voltage of the solar panel. When someone moves and the ambient light is detected at night, the radar circuit outputs a high level to the MCU circuit, and the MCU circuit controls the LED light on or off in combination with the battery power. If the radar detects that the ambient light is during the day, even if someone moves, the radar circuit does not output a high level. The entire sensing process is stable and is not affected by the ambient temperature to maintain a relatively stable sensing distance. The MCU circuit also detects the battery power and automatically charges the lithium battery under light conditions when other lighting is turned on during the day or at night. In this way, the radar-sensing night light with solar charging in this application can enhance the user experience, reduce the maintenance work of daily use, and is easy to use.

[0028] Optionally, the MCU circuit includes an MCU and a battery voltage detection circuit arranged in the MCU, the battery voltage detection circuit is used to detect the voltage of the battery, and the MCU is used to perform control according to the detected voltage of the battery.

[0029] The new solar charging management driver with radar sensing function also includes a manual switch K1, the first end and the third end of the manual switch K1 are connected together and connected to the MCU U2, and the second end and the fourth end of the manual switch K1 are connected together and grounded GND. The button of the manual switch K1 controls the power on and off. Manually press the button of the manual switch K1 to turn on the night light. After turning on, the MCU configures the radar chip U1 through IIC, and then the radar can sense the movement of people and detect the ambient light intensity by the voltage of the solar panel.

[0030] See also Figure 2 The charging control unit includes: a first switch tube Q1, a first resistor R1 and a second resistor R2. The first end of the first switch tube Q1 is connected to one end of the first resistor R1 and is connected to the MCU U2 through the second resistor R2. The other end of the first resistor R1 is grounded GND and is connected to the negative electrode S- of the solar panel and the negative electrode B- of the battery. The third end of the first switch tube Q1 is connected to the positive electrode S+ of the solar panel. The second end of the first switch tube Q1 is connected to the positive electrode B+ of the battery and the positive electrode L+ of the LED light board. When the radar circuit detects that there is light during the day or at night when other lighting lamps are turned on, the PB3 pin of the MCU U2 outputs a high level, controls the first switch tube Q1 to be turned on, and the solar panel charges the battery, and outputs a high level to the positive electrode L+ of the LED light board. Otherwise, the PB3 pin of the MCU U2 outputs a low level, controls the first switch tube Q1 to be turned off, and the solar panel stops charging the battery.

[0031] The LED control unit includes: a second switch tube Q2, a third resistor R3 and a fourth resistor R4, the first end of the second switch tube Q2 is connected to the MCU U2 through the third resistor R3, and is grounded GND through the fourth resistor R4, the third end of the second switch tube Q2 is connected to the cathode L- of the LED light board, and the second end of the second switch tube Q2 is grounded GND. When the LED lamp of the LED light board needs to be lit, the PB0 pin of the MCU U2 outputs a high level to control the second switch tube Q2 to be turned on, so that the cathode of the LED light board is grounded GND.

[0032] The first switch tube Q1 and the second switch tube Q2 are NMOS tubes, the first end is the gate of the NMOS tube, the second end is the drain of the NMOS tube, and the third end is the source of the NMOS tube.

[0033] See also Figure 3 The radar circuit includes: a radar chip U1, a fifth resistor R5 and a sixth resistor R6, one end of the fifth resistor R5 is connected to the positive electrode S+ of the solar panel, the other end of the fifth resistor R5 is connected to the radar chip U1, and is grounded GND through the sixth resistor R6, and the radar chip U1 communicates with the MCU U2 in IIC. The LIGHT_IN pin of the radar chip U1 divides the voltage of the solar panel through the fifth resistor R5 and the sixth resistor R6 to detect the ambient light intensity.

[0034] The radar circuit further includes a seventh resistor R7 and a first capacitor C1, one end of the seventh resistor R7 is connected to the positive electrode B+ of the battery, the other end of the seventh resistor R7 is connected to the radar chip U1, and is grounded GND through the first capacitor C1. The battery supplies power to the VBAT pin of the radar chip U1 through the seventh resistor R7.

[0035] The first pin VDD of MCU U2 is connected to the positive electrode B+ of the battery to power MCU U2. At the same time, the internal DAC voltage is divided and compared with the internal 0.5V reference of the chip to detect the battery power. If the battery is fully charged, the charging control unit is turned off. If the battery power is too low, the LED light of the LED light board will not light up even if someone senses it, in order to protect the battery and prevent damage to the battery due to over-discharge.

[0036] The radar circuit also includes an antenna Antenna, which is communicatively connected to the radar chip U1.

[0037] The radar circuit also includes: an eighth resistor R8, a ninth resistor R9, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6; the first pin TIA_VCP of the radar chip U1 is grounded to GND through the second capacitor C2, and is connected to the first end of the third capacitor C3 through the eighth resistor R8; the second pin TIA_VCN of the radar chip U1 is grounded to GND through the fourth capacitor C4, and is connected to the second end of the third capacitor C3 through the ninth resistor R9, the third pin FLIT_VIN of the radar chip U1 is connected to the first end of the third capacitor C3 through the fifth capacitor C5, and the fourth pin FLIT_VIP of the radar chip U1 is connected to the second end of the third capacitor C3 through the sixth capacitor C6.

[0038] The radar circuit further includes a seventh capacitor and an eighth capacitor, and the fifth pin VBAT_S of the radar chip U1 is connected to the ground GND through the seventh capacitor. The sixth pin FLIT_VO of the radar chip U1 is connected to the TP detection terminal and is connected to the ground GND through the eighth capacitor.

[0039] In the novel solar charging management driver with radar sensing function in the embodiment of the present application, the MCU circuit configures the radar through the IIC, and the radar can sense the movement of people and detect the ambient light intensity by the voltage of the solar panel. When someone moves and the ambient light is detected as night, the radar outputs a high level to the MCU, and the MCU controls the LED light on or off based on the battery power status; if the radar detects that the ambient light is daytime, even if someone moves, the radar does not output a high level; the MCU constantly detects the battery power, and when it is fully charged, the charging circuit is turned off; if the battery power is too low, the LED will not be lit even if someone senses it, so as to protect the battery and prevent battery damage caused by over-discharge.

[0040] In summary, the new solar charging management driver with radar sensing function in the embodiment of the present application includes: an MCU circuit, a solar panel, a radar circuit, a charging control unit, a battery, an LED light board and an LED control unit. The radar circuit is connected to the MCU circuit and the solar panel, the charging control unit is connected to the solar panel, the battery and the MCU circuit, and the LED control unit is connected to the MCU circuit and the LED light board. By applying the radar's Doppler technology and the lithium battery self-charging technology, a relatively stable sensing distance can be maintained without being affected by the ambient temperature. Through the solar self-charging technology, the lithium battery can be automatically charged under light conditions when other lighting is turned on during the day or at night, thereby improving the user experience and reducing the maintenance work of daily use.

[0041] The above is only a preferred implementation of the present application, but the protection scope of the present application is not limited thereto. It should be pointed out that for those skilled in the art, several equivalent obvious variations and / or equivalent replacements can be made without departing from the technical principles of the present application. These obvious variations and / or equivalent replacements should also be regarded as the protection scope of the present application.

Claims

1. A new solar charging management driver with radar sensing function, characterized in that: The solar charging management driver includes: an MCU circuit, a solar panel, a radar circuit, a charging control unit, a battery, an LED light board and an LED control unit. The radar circuit is connected to the MCU circuit and the solar panel, the charging control unit is connected to the solar panel, the battery and the MCU circuit, and the LED control unit is connected to the MCU circuit and the LED light board.

2. The solar charging management driver according to claim 1, characterized in that: The MCU circuit includes an MCU and a battery voltage detection circuit arranged in the MCU, the battery voltage detection circuit is used to detect the voltage of the battery, and the MCU is used to perform control according to the detected voltage of the battery.

3. The solar charging management driver according to claim 2, characterized in that: The solar charging management driver also includes a manual switch, wherein the first end and the third end of the manual switch are connected together and connected to the MCU, and the second end and the fourth end of the manual switch are connected together and grounded.

4. The solar charging management driver according to claim 2, characterized in that: The charging control unit includes: a first switch tube, a first resistor and a second resistor, wherein the first end of the first switch tube is connected to one end of the first resistor and is connected to the MCU through the second resistor, the other end of the first resistor is grounded and connected to the negative electrode of the solar panel and the negative electrode of the battery, the third end of the first switch tube is connected to the positive electrode of the solar panel, and the second end of the first switch tube is connected to the positive electrode of the battery and the positive electrode of the LED light board.

5. The solar charging management driver according to claim 4, characterized in that: The LED control unit includes: a second switch tube, a third resistor and a fourth resistor, the first end of the second switch tube is connected to the MCU through the third resistor and is grounded through the fourth resistor, the third end of the second switch tube is connected to the negative pole of the LED light board, and the second end of the second switch tube is grounded.

6. The solar charging management driver according to claim 5, characterized in that: The first switch tube and the second switch tube are NMOS tubes, the first end is a gate of the NMOS tube, the second end is a drain of the NMOS tube, and the third end is a source of the NMOS tube.

7. The solar charging management driver according to claim 2, characterized in that: The radar circuit includes: a radar chip, a fifth resistor and a sixth resistor, one end of the fifth resistor is connected to the positive pole of the solar panel, the other end of the fifth resistor is connected to the radar chip and grounded through the sixth resistor, and the radar chip communicates with the MCU through IIC.

8. The solar charging management driver according to claim 7, characterized in that: The radar circuit also includes a seventh resistor and a first capacitor, one end of the seventh resistor is connected to the positive electrode of the battery, the other end of the seventh resistor is connected to the radar chip and is grounded through the first capacitor.

9. The solar charging management driver according to claim 7, characterized in that: The radar circuit also includes an antenna, which is communicatively connected to the radar chip.

10. The solar charging management driver according to claim 7, characterized in that: The radar circuit also includes: an eighth resistor, a ninth resistor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor; the first pin of the radar chip is grounded through the second capacitor and connected to the first end of the third capacitor through the eighth resistor; the second pin of the radar chip is grounded through the fourth capacitor and connected to the second end of the third capacitor through the ninth resistor, the third pin of the radar chip is connected to the first end of the third capacitor through the fifth capacitor, and the fourth pin of the radar chip is connected to the second end of the third capacitor through the sixth capacitor.

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