LED lamp interaction control circuit

Abstract

The utility model discloses an LED lamp interaction control circuit comprising a controller and a plurality of LED detection control circuits connected to the controller. Each LED detection control circuit comprises an MCU unit, a resistor R1, a differential chip U1, a switching chip U3, a fuse F1, a fuse F2, a resistor R4, a transient voltage suppressor T1, a transient voltage suppressor T2, a resistor R2, a differential chip U2, a fuse F3, a fuse F4, a transient voltage suppressor T3 and a transient voltage suppressor T4. According to the LED lamp interaction control circuit, signal detection can be carried out through the sensor, and the display mode of the LED lamp assembly can be adjusted according to the detection signal.

Description

Technical Field

[0001] The utility model specifically relates to an interactive control circuit for LED lamps. Background Art

[0002] LED advertising is advertising words or pictures made up of light-emitting diodes. For example, we usually see electronic large-screen advertisements on the street or some bright advertising words and signs with colorful lights on the roadside. As a new media advertising form, LED advertising is a perfect combination of new media technology and outdoor advertising. It relies on visual images to spread information and attract the audience's desire to buy through image expression. However, the existing LED display screen generally displays pre-set fixed content, and the display method is relatively simple. Utility Model Content

[0003] The utility model provides an LED lamp interactive control circuit to solve the above-mentioned problems, and adopts the following technical solutions:

[0004] An LED lamp interactive control circuit comprises: a controller and a plurality of LED detection control circuits connected to the controller, each of the LED detection control circuits comprises: an MCU unit, a resistor R1, a differential chip U1, a switching chip U3, a fuse F1, a fuse F2, a resistor R4, a transient voltage suppressor T1, a transient voltage suppressor T2, a resistor R2, a differential chip U2, a fuse F3, a fuse F4, a transient voltage suppressor T3, and a transient voltage suppressor T4;

[0005] The MCU unit is connected to the controller through a data bus, one end of the resistor R1 is grounded and the other end is connected to port 1 and port 3 of the differential chip U1, the MCU unit is connected to port 4 of the differential chip U1, port 5 of the differential chip U1 is connected to the fuse F1 and the transient voltage suppressor T2, port 6 of the differential chip U1 is connected to the transient voltage suppressor T1 and port 1 of the switching chip U3, port 2 of the switching chip U3 is connected to the fuse F2, port 3 and port 4 of the switching chip U3 are respectively connected to the MCU unit, the other ends of the transient voltage suppressor T1 and the transient voltage suppressor T2 are grounded, the other ends of the fuses F1 and F2 are connected to the LED lamp assembly, and the two ends of the resistor R4 are respectively connected to port 5 and port 6 of the differential chip U1;

[0006] One end of the resistor R2 is grounded and the other end is connected to port 1, port 3 of the differential chip U2 and the MCU, port 2 and port 4 of the differential chip U2 are connected to the MCU, port 5 of the differential chip U2 is connected to the fuse F3 and the transient voltage suppressor T3, port 6 of the differential chip U2 is connected to the fuse F4 and the transient voltage suppressor T4, the other ends of the transient voltage suppressor T3 and the transient voltage suppressor T4 are grounded, and the other ends of the fuse F3 and the fuse F4 are connected to the first sensor.

[0007] Furthermore, the LED detection control circuit further comprises: a resistor R3, a fuse F5, a capacitor C1 and a diode T5;

[0008] One end of the resistor R3 is connected to the MCU and grounded through the capacitor C1, the other end of the resistor R3 is connected to the fuse F5 and the cathode of the diode T5, the anode of the diode T5 is grounded, and the other end of the fuse F5 is connected to another sensor.

[0009] Furthermore, the LED lamp assembly is a single LED lamp.

[0010] Furthermore, the LED lamp assembly is a rectangular LED display screen including a plurality of LED lamps.

[0011] Furthermore, the model of the MCU unit is STM32F103.

[0012] Furthermore, the differential chip U1 and the differential chip U2 are of the MAX485ESA type.

[0013] Furthermore, the model of the switch chip U3 is SGM3157YC6.

[0014] Furthermore, the sensor is one of an infrared sensor, a microwave radar, an ultrasonic radar, a sound sensor, a wind speed sensor, a noise sensor and a temperature sensor.

[0015] Furthermore, the types of sensors connected to each LED detection control circuit are different.

[0016] The utility model is beneficial in that the provided LED lamp interactive control circuit can detect signals through sensors and adjust the display mode of the LED lamp assembly according to the detection signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of an LED light interactive control circuit provided by the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] Benru Figure 1 The LED light interactive control circuit of the present application is shown, comprising: a controller and a plurality of LED detection control circuits connected to the controller. The plurality of LED detection control circuits are connected to the controller in a cascade manner.

[0021] Specifically, each LED detection control circuit includes: an MCU unit, a resistor R1, a differential chip U1, a switching chip U3, a fuse F1, a fuse F2, a resistor R4, a transient voltage suppressor T1, a transient voltage suppressor T2, a resistor R2, a differential chip U2, a fuse F3, a fuse F4, a transient voltage suppressor T3, and a transient voltage suppressor T4. In this application, the model of the MCU unit is STM32F103, the model of the differential chip U1 and the differential chip U2 are MAX485ESA, and the model of the switching chip U3 is SGM3157YC6.

[0022] Among them, the MCU unit is connected to the controller through a data bus, one end of the resistor R1 is grounded and the other end is connected to port 1 and port 3 of the differential chip U1, the MCU unit is connected to port 4 of the differential chip U1, port 5 of the differential chip U1 is connected to fuse F1 and transient voltage suppressor T2, port 6 of the differential chip U1 is connected to transient voltage suppressor T1 and port 1 of the switching chip U3, port 2 of the switching chip U3 is connected to fuse F2, port 3 and port 4 of the switching chip U3 are respectively connected to the MCU unit, the other end of the transient voltage suppressor T1 and the transient voltage suppressor T2 are grounded, the other end of the fuse F1 and the fuse F2 are connected to the LED lamp assembly, and the two ends of the resistor R4 are respectively connected to port 5 and port 6 of the differential chip U1. One end of the resistor R2 is grounded and the other end is connected to the 1st and 3rd ports of the differential chip U2 and the MCU. The 2nd and 4th ports of the differential chip U2 are connected to the MCU. The 5th port of the differential chip U2 is connected to the fuse F3 and the transient voltage suppressor T3. The 6th port of the differential chip U2 is connected to the fuse F4 and the transient voltage suppressor T4. The other ends of the transient voltage suppressor T3 and the transient voltage suppressor T4 are grounded, and the other ends of the fuse F3 and the fuse F4 are connected to the first sensor. It can be understood that the sensor connected to this part of the circuit is a sensor with a differential signal output.

[0023] After the MCU unit is initialized, each IO function is set. If the connected lamp assembly is a serial lamp, the switching signal of the MCU unit outputs a PWM signal to the switching chip U3. At this time, the serial signal of the MCU unit is given to the lamp assembly through the switching chip U3 and the fuse F2. If the connected lamp assembly is a DMX512 lamp, the switching signal of the MCU unit outputs a low level to the switching chip U3, and the switching chip U3 changes the connection device. The MCU unit sends the DMX512 lamp signal at the same time and then passes through the differential chip U1, the switching chip U3 and the fuse F2 to the lamp assembly.

[0024] Let's take the lamp assembly as a DMX512 lamp as an example. Data is given to the MCU unit through the data bus. The MCU unit sets the input and output direction controller pin as output, and sends out UART query instructions through the output pin. The UART query instructions are converted into differential signals through the differential chip U2, and the differential signals are then given to the sensor through the protection circuit transient voltage suppressor T3, transient voltage suppressor T4, fuses F3, F4. After issuing the instruction, the MCU unit sets the differential chip U2 as input, allowing the sensor to return data to the MCU unit through the differential signal line. The MCU unit analyzes and processes the returned data. After the processing is completed, the MCU unit converts the DMX512 lamp signal into a differential signal through the differential chip U1 (the differential signal is highly immune to external electromagnetic interference and has strong anti-interference ability), and the differential signal is then given to the lamp assembly through the subsequent circuit.

[0025] As a preferred embodiment, the LED detection control circuit further includes: a resistor R3, a fuse F5, a capacitor C1 and two transient voltage suppressors T5. One end of the resistor R3 is connected to the MCU and grounded through the capacitor C1, the other end of the resistor R3 is connected to the fuse F5 and the negative electrode of the transient voltage suppressor T5, the positive electrode of the transient voltage suppressor T5 is grounded, and the other end of the fuse F5 is connected to another sensor. This part of the circuit is used to prevent static electricity and lightning strikes, and this part of the circuit is used to connect level change sensors.

[0026] As a preferred embodiment, the LED lamp assembly is a single LED lamp. The MCU unit can control the brightness of the single LED lamp according to the signal of the sensor.

[0027] As another optional embodiment, the LED light assembly is a rectangular LED display screen including a plurality of LED lights. The MCU unit can control the display content of the LED display screen according to the signal of the sensor. Specifically, the display content of the LED display screen can be preset in advance. When the corresponding signal is detected, the LED display screen is controlled to display the corresponding content. The control circuit of the present application can detect signals through sensors and adjust the display mode of the LED light assembly according to the detection signal. The sensor is one of an infrared sensor, a microwave radar, an ultrasonic radar, a sound sensor, a wind speed sensor, a noise sensor and a temperature sensor. These sensors are used to detect different types of signals. It can be understood that these sensors can be used to detect user behavior and display corresponding content according to the detection results, thereby improving the interactive effect of the LED display screen.

[0028] As a preferred implementation, the types of sensors connected to each LED detection control circuit are different, so that different LED detection control circuits detect detection signals of different types of sensors.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. An LED light interactive control circuit, characterized in that: It comprises: a controller and a plurality of LED detection control circuits connected to the controller, each of the LED detection control circuits comprises: an MCU unit, a resistor R1, a differential chip U1, a switching chip U3, a fuse F1, a fuse F2, a resistor R4, a transient voltage suppressor T1, a transient voltage suppressor T2, a resistor R2, a differential chip U2, a fuse F3, a fuse F4, a transient voltage suppressor T3, and a transient voltage suppressor T4; The MCU unit is connected to the controller through a data bus, one end of the resistor R1 is grounded and the other end is connected to port 1 and port 3 of the differential chip U1, the MCU unit is connected to port 4 of the differential chip U1, port 5 of the differential chip U1 is connected to the fuse F1 and the transient voltage suppressor T2, port 6 of the differential chip U1 is connected to the transient voltage suppressor T1 and port 1 of the switching chip U3, port 2 of the switching chip U3 is connected to the fuse F2, port 3 and port 4 of the switching chip U3 are respectively connected to the MCU unit, the other ends of the transient voltage suppressor T1 and the transient voltage suppressor T2 are grounded, the other ends of the fuses F1 and F2 are connected to the LED lamp assembly, and the two ends of the resistor R4 are respectively connected to port 5 and port 6 of the differential chip U1; One end of the resistor R2 is grounded and the other end is connected to port 1, port 3 of the differential chip U2 and the MCU, port 2 and port 4 of the differential chip U2 are connected to the MCU, port 5 of the differential chip U2 is connected to the fuse F3 and the transient voltage suppressor T3, port 6 of the differential chip U2 is connected to the fuse F4 and the transient voltage suppressor T4, the other ends of the transient voltage suppressor T3 and the transient voltage suppressor T4 are grounded, and the other ends of the fuse F3 and the fuse F4 are connected to the first sensor.

2. The LED light interactive control circuit according to claim 1, characterized in that: The LED detection control circuit also includes: a resistor R3, a fuse F5, a capacitor C1 and a diode T5; One end of the resistor R3 is connected to the MCU and grounded through the capacitor C1, the other end of the resistor R3 is connected to the fuse F5 and the cathode of the diode T5, the anode of the diode T5 is grounded, and the other end of the fuse F5 is connected to another sensor.

3. The LED lamp interactive control circuit according to claim 1, characterized in that: The LED lamp assembly is a single LED lamp.

4. The LED lamp interactive control circuit according to claim 1, characterized in that: The LED lamp assembly is a rectangular LED display screen including a plurality of LED lamps.

5. The LED lamp interactive control circuit according to claim 1, characterized in that: The model of the MCU unit is STM32F103.

6. The LED lamp interactive control circuit according to claim 1, characterized in that: The models of the differential chip U1 and the differential chip U2 are MAX485ESA.

7. The LED lamp interactive control circuit according to claim 1, characterized in that: The model of the switch chip U3 is SGM3157YC6.

8. The LED lamp interactive control circuit according to claim 1, characterized in that: The sensor is one of an infrared sensor, a microwave radar, an ultrasonic radar, a sound sensor, a wind speed sensor and a temperature sensor.

9. The LED lamp interactive control circuit according to claim 8, characterized in that: The type of sensor connected to each LED detection control circuit is different.

Images