CN215892182U - Radar response night-light - Google Patents

Abstract

The utility model discloses a radar induction night light, relates to the technical field of radar detection, and solves the technical problems that an LED induction light is difficult to keep working when power failure occurs and is used in a sheltered environment. The device comprises an LED lamp bead, a radar sensor, an upper cover, a light-transmitting cover, a base and a battery; the upper cover, the base and the light-transmitting cover form a containing cavity, and the LED lamp beads, the radar sensor and the battery are located in the containing cavity; the light-transmitting cover is positioned on the side surface of the accommodating cavity and can transmit light rays emitted by the LED lamp beads; the battery supplies power to the LED lamp bead and the radar sensor; the radar sensor can sense the activity of a human body, and the LED lamp beads are turned on or off. The utility model keeps work during power failure, is used in a sheltered environment and has the advantages of the traditional radar induction lamp and the infrared induction lamp.

Description

Radar response night-light

Technical Field

The utility model relates to the technical field of radar detection, in particular to a radar induction night light.

Background

With the release of new energy-saving policies of governments, incandescent lamps and energy-saving lamps gradually quit the market and are replaced by LED lamp beads, public area illumination such as community corridors and underground garages will be comprehensively replaced by LED induction lamps in the near future, and the microwave radar induction lamps have the functions of not exposing probes, sensing sensitivity and intelligently identifying light and occupy favorable positions in the LED induction lamp market under the advantages of no influence of ambient temperature and the like.

The existing radar induction night light is powered by mains supply, cannot work when power is cut off, is greatly limited by a power supply and is influenced by a power line, the radar induction night light cannot move on a large scale, and the detection range is small. The infrared induction night light can be powered by a battery, so that the problem that a power supply is limited and can only work when being electrified is solved, but the infrared induction night light can only be used in an environment without shielding.

In the process of implementing the utility model, the utility model people find that at least the following problems exist in the prior art:

the existing LED induction lamp is difficult to keep working when power failure occurs, and is used in a sheltering environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a radar induction night light lamp to solve the technical problems that an LED induction lamp in the prior art is difficult to keep working in a power failure state and is used in a sheltering environment. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a radar induction night light which comprises an LED lamp bead, a radar inductor, an upper cover, a light-transmitting cover, a base and a battery, wherein the LED lamp bead is arranged on the upper cover; the upper cover, the base and the light-transmitting cover form a containing cavity, and the LED lamp beads, the radar sensor and the battery are located in the containing cavity; the light-transmitting cover is positioned on the side surface of the accommodating cavity and can transmit light rays emitted by the LED lamp beads; the battery supplies power to the LED lamp bead and the radar sensor; the radar sensor can sense the activity of a human body, and the LED lamp beads are turned on or off.

Optionally, a first PCBA board and a second PCBA board are further arranged in the accommodating cavity, the first PCBA board is provided with a controller, and the second PCBA board is provided with an LED lamp bead driving circuit; the battery is electrically connected with the controller and is positioned below the first PCBA board; the controller can receive the induction signal of the radar sensor and turn on or turn off the LED lamp beads through the LED lamp bead driving circuit.

Optionally, the first PCBA board and the second PCBA board are perpendicular to each other; the number of the second PCBA boards is five, and a regular pentagon is formed; the upper cover, the light-transmitting cover and the base are all plum-blossom-shaped.

Optionally, the first PCBA board is further provided with a function switching circuit, and the function switching circuit can switch the state of the LED lamp bead, including a state switch, a brightness adjusting switch and a lamp-on delay switch; the lighting delay switch is controlled by an internal clock circuit of the controller.

Optionally, the first PCBA board is further provided with an ambient light brightness sensor, the ambient light brightness sensor is capable of detecting the brightness of ambient light, and when the ambient light brightness exceeds a set threshold, the sensing function of the radar sensor is capable of being closed.

Optionally, the ambient light brightness sensor includes a photo resistor and a circuit thereof, and is connected to a ninth pin and an eleventh pin of the signal processing chip and a twenty-first pin of the controller, respectively.

Optionally, the radar sensor and the ambient light brightness sensor are connected to the controller through the signal processing chip, and the signal processing chip is of a type BISS 0001.

Optionally, the first PCBA board is further provided with a power management module, and the power management module is electrically connected with the controller and the battery; the power management module can be used for carrying out charging management on the battery and prompting the charging state and the low-voltage state of the battery through the LED lamp beads.

Optionally, the radar sensor is connected to a third pin of the power management module, an eleventh pin, a twelfth pin, a thirteenth pin, and a fourteenth pin of the signal processing chip, and a fourteenth pin of the controller, respectively.

Optionally, the controller is a CA51F351P6 chip, and a fourteenth pin, a sixteenth pin and an eighteenth pin of the CA51F351P6 chip are respectively connected to the radar sensor and the battery charging status indicator lamp; the controller is also provided with an overheating protection circuit for the LED lamp bead, and the overheating protection circuit comprises a thermistor and a circuit thereof.

The implementation of one of the technical schemes of the utility model has the following advantages or beneficial effects:

the radar sensor adopted by the utility model senses the human body activity through microwave reflection, and can be used in a shielded environment by matching with the LED lamp beads, thereby being more convenient for residents to live in a dim light and dark environment. The battery ensures the normal use of the utility model in power failure, and the application range is wider. Thereby taken into account and kept work when having the power failure, used under the environment that has the sheltering from, had the advantage of traditional radar response lamp and infrared induction lamp simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a functional block diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a first internal structure of an embodiment of the present invention;

FIG. 4 is a second internal structural schematic of an embodiment of the present invention;

FIG. 5 is a pin diagram of a controller chip according to an embodiment of the utility model;

FIG. 6 is a pin diagram of a signal processing chip according to an embodiment of the present invention;

FIG. 7 is a diagram of a radar signal input pin according to an embodiment of the present invention;

FIG. 8 is a second PCBA board chip pin diagram in accordance with an embodiment of the present invention;

FIG. 9 is a diagram of multiple sets of second PCBA board chip pins according to an embodiment of the present invention;

fig. 10 is a circuit diagram of a group of LED lamp bead driving circuits according to an embodiment of the present invention;

FIG. 11 is a pin diagram of a power management module chip according to an embodiment of the utility model;

FIG. 12 is a circuit diagram of a low battery voltage prompt according to an embodiment of the present invention;

FIG. 13 is a functional switching circuit diagram of an embodiment of the present invention;

FIG. 14 is a pin diagram of a toggle switch according to an embodiment of the present invention;

FIG. 15 is a diagram of a USB charging interface pin of a battery according to an embodiment of the present invention;

FIG. 16 is a circuit diagram of an LED lamp bead overheating protection circuit according to an embodiment of the present invention;

FIG. 17 is a circuit diagram of the controller internal clocks of an embodiment of the present invention;

in the figure: 1. LED lamp beads; 2. a radar sensor; 3. an upper cover; 4. a light-transmitting cover; 5. a base; 6. A first PCBA board; 7. a second PCBA board; 8. a battery; 9. a shield.

Detailed Description

In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the utility model may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc. consistent with certain aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," and the like are used in the orientations and positional relationships illustrated in the accompanying drawings for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the elements so referred to must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "coupled" and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, a unitary connection, a mechanical connection, an electrical connection, a communicative connection, a direct connection, an indirect connection via intermediate media, and may include, but are not limited to, a connection between two elements or an interactive relationship between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to explain the technical solution of the present invention, the following description is made by way of specific examples, which only show the relevant portions of the embodiments of the present invention.

The first embodiment is as follows:

as shown in fig. 1, 2, 3 and 4, the utility model provides a radar induction night light, which comprises an LED lamp bead 1, a radar inductor 2, an upper cover 3, a light-transmitting cover 4, a base 5 and a battery 8. The radar sensor 2 senses human body activity, and when the human body activity information is sensed, the LED lamp beads 1 are turned on; if not, the system is closed, a protective cover 9 is arranged above the radar sensor 2, and the preferred working frequency band of the radar sensor 2 is 5.8 GHz. And the upper cover 3, the light-transmitting cover 4 and the base 5 play a role in protecting the LED lamp beads 1 and the radar sensor 2. The battery 8 supplies power to the LED lamp bead 1 and the radar sensor 2, and normal work of the LED lamp bead and radar sensor device is achieved. The battery is a rechargeable lithium battery, a dry battery or a power supply matched with a USB interface. The battery has high adaptability, and can freely select a rechargeable power supply or a storage battery for charging. Upper cover 3, base 5 and printing opacity cover 4 form and hold the cavity, and LED lamp pearl 1, radar sensor 2 are located and hold the cavity. The light-transmitting cover 4 is located on the side face of the accommodating cavity and can emit light rays through the LED lamp beads 1. Specifically, LED lamp pearl 1 is in the side parallel arrangement who holds the cavity, sets up printing opacity cover 4 in the side that holds the cavity, makes things convenient for the light that LED lamp pearl 1 sent to shine around through printing opacity cover 4. Radar inductor 2 can respond to human activity, and LED lamp pearl 1 is opened or is closed. Specifically, LED lamp pearl 1 judges whether the light is on according to the signal of 2 responses of radar sensor. The utility model adopts the 5.8GHz radar sensor to sense the signal frequency more accurately and more stably. 5.8 GHz's radar sensor possesses low-power consumption, anti-interference, does not fear the advantage of sheltering from, through the human activity of microwave reflection response, cooperation LED lamp pearl can be used under the environment that has the shelter from, more makes things convenient for resident's life under dim light and dark environment. The battery ensures the normal use of the utility model in power failure, and the application range is wider. Therefore, the utility model keeps work during power failure, is used in a sheltered environment and has the advantages of the traditional radar induction lamp and the infrared induction lamp.

As an optional implementation manner, as shown in fig. 3, 4, 8, and 10, a first PCBA board 6 is disposed in the accommodating cavity, a controller is disposed on the first PCBA board 6, and an LED lamp bead driving circuit is disposed on the second PCBA board 7. Specifically, fig. 8 shows a pin diagram of a second PCBA board chip, the second PCBA board 7 is connected to the USB small board, and when the radar controller 2 senses the human body activity information, an eleventh pin (i.e., a VO pin) of the second PCBA board 7 chip outputs a high level signal; the LED lamp bead driving circuit shown in fig. 10 is disposed on the second PCBA board 7, and the LED lamp bead driving circuit can drive the LED lamp bead 1 to turn on or turn off according to the received high level signal; the battery is LED lamp pearl 1, radar sensor 2 and first PCBA board 6, the power supply of second PCBA board 7. The controller can receive the signal of radar sensor 2 to drive LED lamp pearl 1 illumination through LED lamp pearl drive circuit. As shown in fig. 4 and 13, the battery 8 is electrically connected with the LED lamp bead driving circuit and the controller, and the battery 8 is located below the first PCBA board 6; the controller can receive the induction signal of the radar inductor 2 and turn on or turn off the LED lamp beads 1 through the LED lamp bead driving circuit; specifically, as shown in fig. 9 and 10, each group of LED lamp beads 1 (i.e., on the same second PCBA board 7) has two LED lamp beads 1, and five groups of ten LED lamp beads 1 are arranged inside the side edge of the accommodating cavity to provide lighting service, including LED1-LED2 and LED6-LED13, wherein one group of LED lamp beads 1 is arranged on the USB platelet (LED4 and LED 5).

As an alternative embodiment, as shown in fig. 2, 3, and 9, the first PCBA board 6 and the second PCBA board 7 are perpendicular to each other, so that the structure of the present invention is more compact and the space utilization rate is high. The number of the second PCBA boards 7 is five, and a regular pentagon is formed; the upper cover 3, the light-transmitting cover 4 and the base 5 are all plum blossom-shaped, so that the appearance of the utility model is more beautiful.

As an optional implementation manner, as shown in fig. 13, 14, and 17, the first PCBA board 6 is further provided with a function switching circuit, and the function switching circuit can switch the state of the LED lamp bead 1, and includes a state switch, a brightness adjusting switch, and a lighting delay switch; the lighting delay switch is controlled by an internal clock circuit of the controller; specifically, any one of the output terminals of VO, VO _1, and LED _ ON shown in fig. 13 outputs a high level signal, and can light up LED lamp bead 1. Fig. 14 is a toggle switch diagram that enables free switching of "auto", "normally on", and "off" functions. VO is the output end in the normal bright mode, VO _1 is the output end of the signal processing chip in the automatic mode, and LED _ ON is the output end in the intelligent judgment mode of the controller. A user can set the function switching circuit into one of three modes of automatic, normally on and power off by toggling the switch, the LED lamp can be illuminated according to high level signals input in different modes when the LED lamp is used, and the LED lamp is turned off when the LED lamp is not used, so that the radar induction night light is more energy-saving and environment-friendly; luminance can be adjusted through reducing or increasing LED lamp pearl 1, can change the time of time delay through bright lamp delay switch, through setting up the inside clock of controller that figure 17 shows, can adjust the time of bright lamp.

As an optional implementation, the first PCBA board 6 is further provided with an ambient light brightness sensor, as shown in fig. 6, the ambient light brightness sensor can detect the brightness of ambient light, and when the ambient light brightness exceeds a set threshold, the sensing function of the radar sensor 2 can be turned off; specifically, the ambient light brightness sensor changes the size of the photosensitive resistor through the sensitivity of the photosensitive resistor to light, the photosensitive resistor is connected with the signal processing chip, and when the resistance value reaches a set threshold value (input voltage VC >0.2VDD), the output level can be triggered and transmitted to the controller. The type of the photoresistor used by the utility model is GL-5537.

As an alternative embodiment, as shown in fig. 5 and fig. 6, the ambient light level sensor includes a photo-resistor and its circuit, which are respectively connected to a ninth pin (VC pin, trigger disable terminal, which allows triggering when the input voltage VC >0.2VDD), an eleventh pin (VDD pin, i.e. positive terminal of the operating power supply) of the signal processing chip and a twenty-first pin of the controller. Specifically, the ambient light brightness sensor transmits the received signal to the signal processing chip and the controller, when the weak light or dark condition is met, the radar sensor 2 senses the human activity signal and transmits the signal to the controller, and the controller drives the LED lamp bead driving circuit to open the LED lamp bead 1.

As an alternative embodiment, as shown in fig. 5 and 6, the radar sensor 2 and the ambient light sensor are connected to the controller through a signal processing chip, and the model of the signal processing chip is BISS 0001. Specifically, the BISS0001 is a high-performance sensor signal processing integrated circuit, and is capable of converting a received sensor signal into a signal that can be recognized by a controller and transmitting the signal to the controller.

As an alternative embodiment, as shown in fig. 11, 12 and 15, the first PCBA board 6 is further provided with a power management module, and the power management module is electrically connected with the controller and the battery; the power management module can carry out charge management on the battery and prompt the charging state and the low-voltage state of the battery through the LED lamp beads 1. Specifically, three LED lamp beads are used for prompting the charging state and the low-voltage state of the battery, and the bright orange lamp (LED5) prompts when the battery is charged, the bright green lamp (LED4) prompts when the battery is full, and the bright red lamp (LED3) prompts when the battery is low-voltage. The power management module is connected with a USB charging port shown in fig. 15, the USB charging port is provided on the USB platelet, and the battery can be charged through the USB charging port.

As an alternative embodiment, as shown in fig. 6 and 7, the radar sensor 2 is connected to the third pin of the power management module, the eleventh pin, the twelfth pin, the thirteenth pin and the fourteenth pin of the signal processing chip, and the fourteenth pin of the controller, respectively. Specifically, as shown in fig. 6, one end of the radar sensing signal is connected to the power supply of the controller, and the other end is grounded. After the radar sensing signal is reflected back, the radar sensing signal can be amplified in a first-level mode and a second-level mode (an eleventh pin, a twelfth pin, a thirteenth pin and a fourteenth pin of the signal processing chip), the amplified signal can be identified by the controller, meanwhile, the ambient light brightness is judged, and if the ambient light brightness reaches a set light brightness threshold value, the signal is output to the controller to be processed. The controller judges whether the LED lamp bead driving circuit drives the LED lamp beads to illuminate or not according to the input signals.

As an alternative embodiment, as shown in fig. 5, the controller is a CA51F351P6 chip, and a fourteenth pin, a sixteenth pin and an eighteenth pin of the CA51F351P6 chip are respectively connected to the radar sensor 2 and the battery charging status indicator light; the controller is also provided with an overheating protection circuit for the LED lamp bead 1, and the overheating protection circuit comprises a thermistor and a circuit thereof. The temperature sensor shown in fig. 16 is used for protecting the LED lamp bead 1, and once the ambient temperature of the LED lamp bead 1 is found to be too high, the risk of burning out the LED lamp bead 1 due to overheating exists, so that the brightness can be timely reduced, and the temperature can be reduced. A8/16/32K Flash program memory is arranged in a CA51F351P6 chip, can be repeatedly programmed for multiple times, and integrates function modules such as an ADC (analog to digital converter), an LCD (liquid crystal display)/LED (light emitting diode) driver, a Touch Key, a PWM (pulse width modulation), a UART (universal asynchronous receiver transmitter), an RTC (real time clock), a Low Voltage Detection (LVD) and the like. Three power saving modes of IDLE, STOP and low-speed operation are supported, and the power saving control method can be better suitable for different power consumption requirements of the power saving control device. The controller receives the transmission signals of the ambient light brightness sensor, the radar sensing sensor 2, the power management module and the like, and manages and controls the work of each part according to the prior art.

The embodiment is only a specific example and does not indicate such an implementation of the utility model.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A radar induction night light is characterized by comprising an LED lamp bead, a radar inductor, an upper cover, a light-transmitting cover, a base and a battery; the upper cover, the base and the light-transmitting cover form a containing cavity, and the LED lamp beads, the radar sensor and the battery are located in the containing cavity; the light-transmitting cover is positioned on the side surface of the accommodating cavity and can transmit light rays emitted by the LED lamp beads; the battery supplies power to the LED lamp bead and the radar sensor; the radar sensor can sense the activity of a human body, and the LED lamp beads are turned on or off.

2. The radar sensing night light of claim 1, wherein a first PCBA board and a second PCBA board are further arranged in the accommodating cavity, a controller is arranged on the first PCBA board, and an LED lamp bead driving circuit is arranged on the second PCBA board; the battery is electrically connected with the controller and is positioned below the first PCBA board; the controller can receive the induction signal of the radar sensor and turn on or turn off the LED lamp beads through the LED lamp bead driving circuit.

3. The radar-sensing night light of claim 2, wherein the first PCBA board and the second PCBA board are perpendicular to each other; the number of the second PCBA boards is five, and a regular pentagon is formed; the upper cover, the light-transmitting cover and the base are all plum-blossom-shaped.

4. The radar induction night light of claim 2, wherein the first PCBA board is further provided with a function switching circuit, and the function switching circuit can switch the state of the LED lamp bead and comprises a state switch, a brightness adjusting switch and a light-on delay switch; the lighting delay switch is controlled by an internal clock circuit of the controller.

5. The radar-sensing night light of claim 2, wherein the first PCBA board is further provided with an ambient light sensor capable of detecting the intensity of ambient light, and capable of turning off the sensing function of the radar sensor when the intensity of ambient light exceeds a set threshold.

6. The radar-sensing night light of claim 5, wherein the ambient light sensor comprises a photo resistor and a circuit thereof, and is connected to a ninth pin and an eleventh pin of the signal processing chip and a twenty-first pin of the controller, respectively.

7. The radar-sensing night light of claim 6, wherein the radar sensor and the ambient light brightness sensor are connected with the controller through the signal processing chip, and the signal processing chip is of a BISS0001 model.

8. The radar-sensing night light of claim 7, wherein the first PCBA board is further provided with a power management module, and the power management module is electrically connected with the controller and the battery; the power management module can be used for carrying out charging management on the battery and prompting the charging state and the low-voltage state of the battery through the LED lamp beads.

9. The radar-sensing night light of claim 8, wherein the radar sensor is respectively connected to a third pin of the power management module, an eleventh pin, a twelfth pin, a thirteenth pin, a fourteenth pin of the signal processing chip, and a fourteenth pin of the controller.

10. The radar-sensing night light of claim 2, wherein the controller is of a type of a CA51F351P6 chip, and a fourteenth pin, a sixteenth pin and an eighteenth pin of the CA51F351P6 chip are respectively connected with the radar sensor and the battery charging state indicator light; the controller is also provided with an overheating protection circuit for the LED lamp bead, and the overheating protection circuit comprises a thermistor and a circuit thereof.

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