LED induction lamp

Abstract

The utility model relates to an LED induction lamp which comprises an LED lamp body. The LED driving circuit is electrically connected with the LED lamp body and is used for controlling the working state of the LED lamp body; the voltage division sampling circuit is electrically connected with the LED lamp body and the LED driving circuit and is used for collecting the corresponding voltage condition of the LED lamp body and adjusting the voltage condition; and the control detection module is electrically connected with the LED driving circuit, the control detection module is provided with a sampling interface, the sampling interface is electrically connected with the voltage division sampling circuit, and the control detection module is used for receiving the acquisition result of the voltage condition so that the control detection module can analyze the acquisition result, and the control detection module reports the acquisition result when the acquisition result is abnormal. The voltage division sampling circuit is additionally arranged to be matched with the sampling interface arranged on the control detection module, the voltage condition of the LED lamp end is sampled in real time, and therefore whether work of the LED lamp is abnormal or not is analyzed, the problem that it is difficult to find out the lamp in time when the lamp is damaged is effectively solved, and the stability of the whole lighting system is guaranteed.

Description

LED sensor light Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an LED sensor light. Background Technology

[0002] In the current lighting market, there are various types of lighting fixtures, among which LED lights are the most widely used due to their simple structure and high technological maturity. However, in large-scale LED lighting applications, such as underground parking lots or buildings, the damage to individual fixtures is difficult to detect and handle in a timely manner. In other words, in scenarios with a large number of LED lights, it is difficult to detect and locate faulty lights in a timely manner, which can easily leave users in the dark when needed, affecting the overall stability and reliability of the lighting system. Summary of the Invention

[0003] In view of this, the main purpose of this utility model is to provide an LED sensor lamp that, by adding a voltage divider sampling circuit and cooperating with the sampling interface set on the control and detection module, samples the voltage at the LED lamp terminal in real time, thereby analyzing whether there are any abnormalities in the operation of the LED lamp, effectively solving the problem of difficulty in timely detection when the lamp is damaged, and ensuring the stability of the entire lighting system.

[0004] This application provides an LED sensor light, including:

[0005] LED lamp body;

[0006] An LED driver circuit is electrically connected to the LED lamp body and is used to control the working state of the LED lamp body.

[0007] The voltage divider sampling circuit is electrically connected to the LED lamp body and the LED driver circuit, and is used to collect and adjust the corresponding voltage of the LED lamp body.

[0008] The control and detection module is electrically connected to the LED driver circuit; and

[0009] The control and detection module is equipped with a sampling interface, which is electrically connected to the voltage divider sampling circuit. The sampling interface is used to receive the sampling results of the voltage condition for analysis by the control and detection module, and the control and detection module reports when the sampling results are abnormal.

[0010] In some embodiments, the LED driving circuit is provided with a driver chip; and

[0011] The VCC pin of the driver chip is electrically connected to one end of the LED body, the OUT1 pin of the driver chip is electrically connected to the other end of the LED body, and the PWM pin of the driver chip is electrically connected to the PWM pin of the control and detection module.

[0012] In some embodiments, the LED driving circuit is equipped with a transistor; and

[0013] The collector of the transistor is electrically connected to one end of the LED body, the emitter of the transistor is grounded, and the base of the transistor is electrically connected to the PWM pin of the control and detection module.

[0014] In some embodiments, the voltage divider sampling circuit includes a first voltage divider resistor, a second voltage divider resistor, a third voltage divider resistor, and a first capacitor;

[0015] One end of the first voltage divider resistor is electrically connected to the target sampling point, and the other end is electrically connected to one end of the second voltage divider resistor and the third voltage divider resistor, respectively. The other end of the second voltage divider resistor is grounded, and the other end of the third voltage divider resistor is electrically connected to the sampling interface.

[0016] One end of the first capacitor is electrically connected between the third voltage divider resistor and the sampling interface, and the other end is grounded.

[0017] In some embodiments, the target sampling point is located between the cathode of the LED lamp body and the OUT1 pin of the driver chip in the LED driver circuit, or the anode of the LED lamp body.

[0018] In some embodiments, the control detection module includes:

[0019] The sensing unit is used to detect target movement;

[0020] The wireless control unit is electrically connected to the sensing unit and the LED driving circuit, and is used to control the working state of the sensing unit, receive the motion detection results detected by the sensing unit, and send control signals to the LED driving circuit according to the motion detection results.

[0021] In some embodiments, the wireless control unit is any one of a Wi-Fi unit, a BT unit, a Zigbee unit, or a Lora unit;

[0022] The sensing unit can be either a radar unit or an infrared unit.

[0023] In some embodiments, it also includes:

[0024] The ACDC circuit is electrically connected to the control and detection module, and is used to connect to the mains power and convert it into DC power.

[0025] In some embodiments, it also includes:

[0026] The rectifier circuit is electrically connected to the AC / DC circuit and the LED driver circuit.

[0027] In some embodiments, the rectifier circuit is a full-wave rectifier bridge.

[0028] Technical effects of this utility model:

[0029] This application adds a voltage divider sampling circuit to collect the corresponding voltage of the LED lamp, thereby enabling the detection of the LED lamp's status based on the voltage condition. Specifically, it includes: an LED lamp body; an LED driver circuit, electrically connected to the LED lamp body, used to control the working state of the LED lamp body; a voltage divider sampling circuit, electrically connected to the LED lamp body and the LED driver circuit, used to collect and adjust the corresponding voltage of the LED lamp body; and a control detection module, electrically connected to the LED driver circuit, which is equipped with a sampling interface. The sampling interface is electrically connected to the voltage divider sampling circuit to receive the voltage sampling results for analysis by the control detection module, and the control detection module reports when the sampling results are abnormal. In other words, this application, by setting up a voltage divider sampling circuit and a reserved sampling interface on the control detection module to cooperate, collects the voltage of the lamp body through the voltage divider sampling circuit and receives the sampling results through the reserved sampling interface of the control detection module. This allows the control detection module to promptly report when an LED lamp abnormality is detected based on the sampling results, enabling timely handling and effectively solving the problem of LED lamp damage being difficult to detect over a long period of time. In large-scale LED lighting applications, especially in underground parking lots and buildings, faulty lights can be detected promptly among a large number of LEDs, preventing users from experiencing prolonged periods of darkness and ensuring the stability and practicality of the lighting system.

[0030] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0031] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0032] Figure 1 shows a circuit structure diagram of an LED sensor lamp according to an embodiment of this application;

[0033] Figure 2 shows another circuit structure diagram of an LED sensor lamp according to an embodiment of this application;

[0034] Figure 3 shows a circuit structure diagram of the LED driving circuit in an LED sensor lamp according to an embodiment of this application;

[0035] Figure 4 shows another structural schematic diagram of the LED driving circuit in an LED sensor lamp according to an embodiment of this application. Detailed Implementation

[0036] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0037] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0038] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0039] As shown in Figure 1, this application embodiment provides an LED sensor light, including:

[0040] LED lamp body;

[0041] LED driver circuit 100 is electrically connected to LED lamp body and is used to control the working state of LED lamp body;

[0042] The voltage divider sampling circuit 200 is electrically connected to the LED lamp body and the LED driver circuit 100, and is used to collect and adjust the corresponding voltage of the LED lamp body.

[0043] The control and detection module 300 is electrically connected to the LED driver circuit 100; and

[0044] The control detection module 300 is equipped with a sampling interface, which is electrically connected to the voltage divider sampling circuit 200. It is used to receive the sampling results of the voltage condition for analysis by the control detection module 300, and the control detection module 300 reports when the sampling results are abnormal.

[0045] This embodiment adds a voltage divider sampling circuit 200 to collect the corresponding voltage status of the LED lights, thereby monitoring the LED light status. The sampling results are then returned to the control and detection module 300 in real time via a reserved sampling interface. This allows the control and detection module 300 to analyze the sampling results and promptly report any anomalies, enabling timely handling and effectively solving the problem of LED light damage being difficult to detect for extended periods. In large-scale LED light applications, especially in underground parking lots and buildings, the cooperation between the voltage divider sampling circuit 200 and the sampling interface enables timely detection of faulty LEDs among a large number of lights, preventing users from experiencing prolonged periods of darkness and ensuring the stability and practicality of the lighting system.

[0046] In some embodiments, the LED driving circuit 100 is provided with a driving chip U1; and

[0047] The VCC pin of the driver chip U1 is electrically connected to one end of the LED lamp body, the OUT1 pin of the driver chip U1 is electrically connected to the other end of the LED lamp body, and the PWM pin of the driver chip U1 is electrically connected to the PWM pin of the control detection module 300.

[0048] In this embodiment, the LED driving circuit adjusts the state of the LED lamp body through an LED driving chip. The VCC pin (pin 1) of the LED driving chip U1 is electrically connected to one end of the LED lamp body to apply a driving voltage. The OUT1 pin (pin 2) of the LED driving chip U1 is a constant current source output, electrically connected to the other end of the LED lamp body to provide a constant power supply. Furthermore, the PWM pin (pin 3) of the LED driving chip U1 is used to control the magnitude of the constant current source and is electrically connected to the PWM control pin of the control and detection module 300. This allows the control and detection module 300 to output a PWM control signal through its PWM pin, controlling the LED driving circuit 100. Thus, the LED driving circuit 100 controls the LED lamp body, meeting the requirements for constant current drive and precise dimming in large-scale application scenarios such as underground parking lots. The preferred model of the driving chip is MT7860 / SM2123EG / KP18055ESPA.

[0049] In some embodiments, the LED driver circuit includes a transistor Q1; and

[0050] The collector of transistor Q1 is electrically connected to one end of the LED lamp body, the emitter of transistor Q1 is grounded, and the base of transistor Q1 is electrically connected to the PWM pin of the control and detection module 300.

[0051] In this embodiment, the LED driving circuit 100 uses transistor Q1 to adjust the current flowing through the LED body. When the duty cycle of the PWM signal input to the base of transistor Q1 changes, the current flowing through the LED body will change, thereby achieving the adjustment of the brightness of the LED body.

[0052] It should be noted that the PWM signal output by the control and detection circuit 300 can adjust the driving current provided to the LED by the LED driver circuit 100. Furthermore, when the driving current changes in the link, the corresponding voltage sampled by the voltage divider sampling circuit 200 is different. Therefore, by reporting the voltage sampling result to the control and detection module 300 through the sampling interface, the control and detection module 300 can detect the state of the LED based on this. When the LED malfunctions, such as when the LED burns out, the link is essentially open-circuited, and there is no current. Therefore, regardless of how the brightness is adjusted, the voltage at the sampling node will not change, indicating that the LED has malfunctioned.

[0053] In some embodiments, the voltage divider sampling circuit 200 includes a first voltage divider resistor R4, a second voltage divider resistor R1, a third voltage divider resistor R3, and a first capacitor C1.

[0054] One end of the first voltage divider resistor R4 is electrically connected to the target sampling point, and the other end is electrically connected to one end of the second voltage divider resistor R1 and the third voltage divider resistor R3 respectively. The other end of the second voltage divider resistor R1 is grounded, and the other end of the third voltage divider resistor R3 is electrically connected to the sampling interface.

[0055] One end of the first capacitor C1 is electrically connected between the third voltage divider resistor R3 and the sampling interface, and the other end is grounded.

[0056] In this embodiment, the voltage divider sampling circuit 200 is used to collect the voltage at the LED terminal and adjust the voltage to a reasonable range to meet the normal reception requirements of the sampling interface. Simultaneously, the module analyzes the detection results to determine if there are any abnormalities in the LED's operation and reports them promptly if any are found. Specifically, the voltage divider sampling circuit 200 includes a first voltage divider resistor R4, a second voltage divider resistor R1, and a third voltage divider resistor R3. One end of the first voltage divider resistor R4 is electrically connected to the target sampling point to monitor the corresponding voltage of the LED. The other end of the first voltage divider resistor R4 is electrically connected to one end of the second voltage divider resistor R1 and the third voltage divider resistor R3, respectively. The other end of the second voltage divider resistor R1 is grounded, and the other end of the third voltage divider resistor R3 is electrically connected to the ADC acquisition pin of the control detection module 300. In practical applications, the resistance values ​​of each voltage divider resistor can be adjusted appropriately according to the actual situation to ensure that the sampling voltage range is within the detection range of the module. Furthermore, the control detection module 300 has a reserved sampling interface for connecting to the external voltage divider sampling circuit 200. This sampling interface is directly connected to the ADC pin of the module, so that the collected voltage is input into the module through the ADC pin and the analog signal is digitized through analog-to-digital conversion for subsequent processing, thereby enabling the determination of the LED lamp body's status.

[0057] In addition, since the voltage signal output from the voltage divider network consisting of the first voltage divider resistor R4, the second voltage divider resistor R1, and the third voltage divider resistor R3 has certain fluctuations and noise, the addition of the first capacitor C1 for isolation and filtering makes the voltage signal reaching the 300ADC pin of the control and detection module smoother and more stable, which helps to improve the accuracy of ADC sampling. The third voltage divider resistor R3 and the first capacitor C1 form an RC filter circuit. Utilizing the charging and discharging characteristics of the first capacitor C1 and the current-limiting characteristics of the resistor, the signal after voltage division is filtered to remove high-frequency noise, making the signal input to the ADC pin smoother and more stable.

[0058] In some embodiments, the target sampling point is set between the cathode of the LED body D1 and the OUT1 pin of the driver chip U1 in the LED driver circuit 100, or the anode of the LED body D1.

[0059] It should be noted that, in practical applications, the target voltage sampling point of the voltage divider sampling circuit 200 can be adjusted according to the actual situation, which will be explained in detail below.

[0060] In one scenario, as shown in Figure 3, the target sampling point is set between the cathode of the LED body D1 and the OUT1 pin of the driver chip. That is, a voltage divider network is formed by the first voltage divider resistor R4, the second voltage divider resistor R1, and the third voltage divider resistor R3. One end of the first voltage divider resistor R4 is electrically connected between the LED body D1 and the OUT1 pin of the LED driver chip U1. The other end of the first voltage divider resistor R4 is electrically connected to one end of the second voltage divider resistor R1 and the third voltage divider resistor R3 respectively. The other end of the second voltage divider resistor R1 is grounded, and the other end of the third voltage divider resistor R3 is electrically connected to the ADC pin of the control and detection module 300. In this embodiment, a voltage divider sampling circuit 200 is reserved between the OUT1 pin and the LED cathode. The voltage divider sampling circuit 200 collects the voltage of the OUT1 pin to ground. By monitoring this voltage through the ADC, it determines whether the LED is abnormal, i.e., whether the LED body is open-circuited, short-circuited, or aging. The voltage divider resistor values ​​are adjusted to ensure that the sampling voltage is within the ADC range of the module (e.g., 0–3.3V). When an LED malfunctions, the sampled voltage will deviate significantly from the normal value, and the module will report the fault accordingly.

[0061] It should be noted that the LED driver chip U1 controls the LED brightness and operating status by adjusting the current. Changes in the driving current will also change the voltage of the corresponding sampling node. Since different LED operating voltages result in different sampling node voltages, the voltage of the sampling node will also vary. Therefore, after the voltage of the target sampling node is acquired by the voltage divider sampling circuit 200, the voltage divider sampling circuit 200 adjusts the resistance value according to the actual situation to ensure that the sampling voltage range is within the module's detection range. When the LED malfunctions, such as burning out, the module's sampling voltage will show an abnormal state, thus enabling timely reporting and processing of the abnormal result. In practical use, this allows for timely detection of LED light faults, which is especially convenient in large-scale application scenarios, such as underground parking lots, where faulty lights can be identified among a large number of LEDs in a timely manner, preventing users from experiencing prolonged periods of darkness when needed and maintaining normal user needs.

[0062] In another scenario, as shown in Figure 4, the target sampling point is set at the anode of LED body D1. It should be noted that in this embodiment, a current-limiting resistor R9 is also provided, with one end of R9 electrically connected to the anode of LED body D1 and the other end connected to VCC to prevent excessive current from flowing into the LED branch. Specifically, the target sampling point is set between the current-limiting resistor R9 and the anode of LED body D1. It should also be noted that the cathode of LED body D1 is electrically connected to the collector of transistor Q1, the emitter of transistor Q1 is grounded, and the base of transistor Q1 is electrically connected to the PWM pin of the control and detection module 300. By changing the duty cycle of the PWM signal, the current flowing through the LED body will change, thereby adjusting the LED brightness. The voltage signal sampled by the voltage divider sampling circuit 200 is input from ADC_IN to the ADC pin of the control and detection module 300. By analyzing the ADC_IN input signal, the LED operating status can be monitored, and corresponding processing can be implemented. This allows for timely detection of LED body faults, preventing faulty lights from remaining untreated for extended periods.

[0063] In some embodiments, the control detection module 300 includes:

[0064] Sensing unit 310 is used to detect target movement;

[0065] The wireless control unit 320 is electrically connected to the sensing unit 310 and the LED driving circuit 100. It is used to control the working state of the sensing unit 310, receive the motion detection results detected by the sensing unit 310, and send control signals to the LED driving circuit 100 according to the motion detection results.

[0066] In large-scale LED lighting applications, such as underground parking garages or buildings, manual control of the switches is often the primary mode of operation, which easily leads to situations where lights are left on or off for extended periods. Leaving them on for too long results in enormous power consumption, while leaving them off for too long can leave users stranded in the dark when needed.

[0067] Therefore, this embodiment provides an LED sensor light that combines wireless control with object sensing into an integrated module and is applied in the LED sensor light. This enables the detection of object movement and sends a control signal to the LED driver circuit 100 based on the detection result, thereby controlling the operation of the LED light.

[0068] Specifically, as shown in Figure 2, the control and detection module 300 integrates a sensing unit 310 and a wireless control unit 320. The sensing unit 310 can detect target movement, such as the movement of a person or vehicle. Specifically, after detecting target movement, the sensing unit 310 outputs a continuous fluctuating signal; if the signal fluctuates continuously, it indicates object movement, and if the signal remains unchanged, no object is moving. Furthermore, the sensing unit 310 reports the detection result to the wireless control unit 320, which outputs a control signal to control the LED driver circuit 100, thereby controlling the LED light. The control signal is a PWM signal, which dynamically adjusts the LED light's brightness by changing the PWM signal's duty cycle. It should also be noted that the wireless control unit 320 in this embodiment can also control the sensitivity and sensing range of the sensing unit 310. That is, through wireless signals, it is possible not only to remotely control the LED light's on / off state, adjust the lighting duration and brightness, but also to configure the sensing unit circuit's monitoring sensitivity and sensing range, meeting the application requirements while achieving energy-saving goals.

[0069] On the one hand, the sensing unit 310 in the control and detection module 300 can control the lighting scene, triggering the lighting condition only when the target moves, i.e., when a person or vehicle moves. This not only meets normal usage needs but also achieves energy saving. On the other hand, the wireless control unit 320 in the control and detection module 300 can configure the lighting duration and brightness of the LED light, and can also achieve global, regional, or individual control of the LED light, meeting the network access requirements of the LED light. Simultaneously, since the control and detection module 300 can adjust the driving current provided to the LED light body by adjusting the PWM duty cycle, the voltage of the corresponding sampling node will also change as the driving current in the link changes. Since the LED sensor light is generally in a dim or off state, it only lights up when the sensing unit 320 senses movement in the surrounding area. Therefore, the current in the LED link is different in these two states, and the voltage of the sampling point will also change. If the LED light is burnt out, the voltage of the sampling node will not change regardless of the brightness adjustment when there is no current, indicating that the light is burnt out. In large-scale application scenarios, faulty lights can be identified and replaced in a timely manner, thereby ensuring the practicality and stability of the lighting system.

[0070] In some embodiments, the wireless control unit 320 is any one of a WI-FI unit, a BT unit, a Zigbee unit, or a LoRa unit;

[0071] The sensing unit 310 can be either a radar unit or an infrared unit.

[0072] In this embodiment, the wireless control unit 320 preferably establishes a connection with the smart device using any one of the following: a Wi-Fi unit, a BT unit, a Zigbee unit, or a LoRa unit, and controls the sensitivity and sensing range of the sensing unit 310. Simultaneously, it can also meet the network access requirements of LED lights, enabling global, regional, or individual LED light control. Furthermore, when an abnormality in the LED light is detected by the voltage divider sampling circuit 200, it can be reported through the wireless control unit 320, preventing problematic LED lights from going undetected or unreplaced for extended periods in practical applications. Additionally, a radar unit or infrared unit is preferred for object movement detection. Further, the control detection module 300 is preferably a Bluetooth radar module, combining Bluetooth with a radar chip. When the radar detects movement, it outputs a continuous wave signal; the closer the object is to the radar, the stronger the wave. The Bluetooth (BT) module determines the presence of a person by detecting the magnitude of the signal wave. If the signal fluctuates continuously, it indicates that an object is moving; if the signal remains unchanged, it indicates that no object is moving. The threshold value for the Bluetooth module to determine the signal can be changed via Bluetooth on the mobile phone. The lower the threshold, the farther the sensing distance, meeting more practical needs and making it more versatile.

[0073] In some embodiments, it also includes:

[0074] The ACDC circuit 400 is electrically connected to the control and detection module 300 to connect to mains power and convert it into DC power.

[0075] In this embodiment, the control and detection module 300 is powered by the ACDC circuit 400. Specifically, the ACDC circuit 400 is connected to the mains power and converts the mains power into DC power to power the control and detection module 300, enabling the control and detection module 300 to operate normally under the stable DC power provided by the ACDC circuit 400.

[0076] In some embodiments, it also includes:

[0077] The rectifier circuit 500 is electrically connected to the AC / DC circuit 400 and the LED driver circuit 100.

[0078] In this embodiment, the rectifier circuit 500 is connected to mains power, such as 220V 50Hz sinusoidal AC. After passing through the rectifier circuit 500, the AC power is converted into pulsating DC power and output to the ACDC circuit 400 and the LED driver circuit 100. The ACDC circuit 400 further processes the pulsating DC power output from the rectifier circuit 500 into a stable DC power supply that can provide to the control and detection module 100. That is, after filtering and voltage regulation by the ACDC circuit 400, the pulsating DC power output from the rectifier circuit 500 is converted into a DC voltage that meets the operating requirements of the control and detection module 300. Furthermore, the LED lamp requires appropriate driving current and voltage to emit light normally. The pulsating DC power output from the rectifier circuit 500 serves as the input to the LED driver circuit 100 to ensure that the LED lamp emits light normally.

[0079] In some embodiments, the rectifier circuit 500 is a full-wave rectifier bridge.

[0080] In this embodiment, the rectifier circuit 500 is preferably a full-wave rectifier bridge. The input terminal of the full-wave rectifier bridge is connected to the mains power, and both half cycles of the AC power are rectified, resulting in higher voltage stability and smaller voltage fluctuations, which can provide a more stable power supply for subsequent circuits.

[0081] In summary, this application uses the ACDC circuit 400 to generate DC power to power the control and detection module 300. The control and detection module 300 outputs control signals to control the LED driver circuit 100, thereby controlling the LED lamp body. Specifically, the wireless control unit 320 in the control and detection module 300 is responsible for networking, controlling the LED's operating status, and configuring the operating status of the sensing unit 310. The sensing unit 310 in the control and detection module 300 is responsible for detecting human movement or other object movement and reporting the detection results to the wireless terminal. A voltage divider sampling circuit 200 is also included to collect the corresponding voltage at the LED terminal and adjust the voltage to a reasonable range to meet the normal reception requirements of the sampling interface. Furthermore, the control and detection module 300 can analyze the detection results to determine if there are any abnormalities in the LED lamp's operation and report them promptly when abnormalities are detected.

[0082] Therefore, the LED sensor light of this application is particularly suitable for applications such as underground parking lots and buildings. On the one hand, the wireless control unit 320 can configure the lighting duration and brightness requirements of the LED light, enabling global, regional, or individual control of the LED light, meeting the network access requirements of the LED, and controlling the sensitivity and sensing range of the sensing unit circuit. On the other hand, the sensing unit 310 can control the lighting scenario of the LED light, turning it on only when people or vehicles are moving, and turning it off when there are no relevant triggering conditions, thus achieving energy-saving goals. Furthermore, the voltage divider sampling circuit 200 and the sampling interface can work together to promptly detect LED anomalies and report them through the wireless control unit 320, avoiding situations where faulty lights go undetected and unrepaired for extended periods in practical applications, and ensuring the overall stability of the lighting system.

[0083] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "a," "an," "the," and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion. The terms "connected," "linked," "coupled," and similar words used in this application are not limited to physical or mechanical connections but include electrical connections, whether direct or indirect. The term "multiple" used in this application refers to two or more, and "and / or" describes the relationship between related objects, indicating that three relationships may exist. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The terms "first," "second," "third," etc. used in this application are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0085] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications or improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An LED sensor light, characterized in that, include: LED lamp body; An LED driver circuit is electrically connected to the LED lamp body and is used to control the working state of the LED lamp body. A voltage divider sampling circuit is electrically connected to the LED lamp body and the LED driver circuit, used to collect and adjust the corresponding voltage of the LED lamp body; a control detection module is electrically connected to the LED driver circuit; and the control detection module is provided with a sampling interface, which is electrically connected to the voltage divider sampling circuit, used to receive the sampling results of the voltage conditions for analysis by the control detection module, and the control detection module reports when the sampling results are abnormal.

2. The LED sensor light according to claim 1, characterized in that, The LED driving circuit is equipped with a driving chip; the VCC pin of the driving chip is electrically connected to one end of the LED body, the OUT1 pin of the driving chip is electrically connected to the other end of the LED body, and the PWM pin of the driving chip is electrically connected to the PWM pin of the control and detection module.

3. The LED sensor light according to claim 1, characterized in that, The LED driving circuit is equipped with a transistor; the collector of the transistor is electrically connected to one end of the LED body, the emitter of the transistor is grounded, and the base of the transistor is electrically connected to the PWM pin of the control and detection module.

4. The LED sensor light according to claim 1, characterized in that, The voltage divider sampling circuit includes a first voltage divider resistor, a second voltage divider resistor, a third voltage divider resistor, and a first capacitor; one end of the first voltage divider resistor is electrically connected to the target sampling point, and the other end is electrically connected to one end of the second voltage divider resistor and the third voltage divider resistor, respectively; the other end of the second voltage divider resistor is grounded, and the other end of the third voltage divider resistor is electrically connected to the sampling interface. One end of the first capacitor is electrically connected between the third voltage divider resistor and the sampling interface, and the other end is grounded.

5. The LED sensor light according to claim 4, characterized in that, The target sampling point is set between the cathode of the LED lamp body and the OUT1 pin of the driver chip in the LED driver circuit, or the anode of the LED lamp body.

6. The LED sensor light according to any one of claims 1-5, characterized in that, The control and detection module includes: a sensing unit for detecting target movement; and a wireless control unit electrically connected to the sensing unit and the LED driving circuit for controlling the working state of the sensing unit, receiving the movement detection result detected by the sensing unit, and sending a control signal to the LED driving circuit according to the movement detection result.

7. The LED sensor light according to claim 6, characterized in that, The wireless control unit is any one of a WI-FI unit, a BT unit, a Zigbee unit, or a Lora unit; the sensing unit is any one of a radar unit or an infrared unit.

8. The LED sensor light according to claim 7, characterized in that, Also includes: The ACDC circuit is electrically connected to the control and detection module, and is used to connect to the mains power and convert it into DC power.

9. The LED sensor light according to claim 8, characterized in that, Also includes: The rectifier circuit is electrically connected to the AC / DC circuit and the LED driver circuit.

10. The LED sensor light according to claim 9, characterized in that, The rectifier circuit is a full-wave rectifier bridge.

Images