Outdoor wall washing lamp driving circuit with feedback function

Abstract

The utility model discloses an outdoor wall washing lamp drive circuit with a feedback function, which comprises a control system, a main control module and an acquisition module, the main control module is bidirectionally connected with the control system, the acquisition module is bidirectionally connected with the main control module, the acquisition module is used for acquiring lamp information, and the lamp information is transmitted to the main control module. And the main control module is used for receiving the lamp information and feeding back data obtained through internal operation to the control system. By arranging the acquisition module, various operation data of the lamp can be acquired, processed and transmitted to the main control module, and the main control module feeds back the information of the lamp to the control system, so that a user can detect the operation condition of the lamp in real time, and the operation management quality and level of the outdoor wall washing lamp are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of lighting technology, in particular to a driving circuit for an outdoor wall washer lamp with a feedback function. Background Art

[0002] At present, outdoor wall washer lamps have been widely used in places that require large-area floodlighting, such as decorating building facades, staircase contours, river embankments, open-air squares, parks, stages, etc. While the demand is increasing, the failure rate is also rising continuously. Often, when repairing, a large amount of time and manpower are required to find the faulty lamps. Therefore, there is an urgent need for a lamp driving circuit with information feedback to solve this problem. Content of the Utility Model

[0003] The technical solution for solving the technical problem of the utility model is to provide a driving circuit for an outdoor wall washer lamp with a feedback function, which can feedback the state of the outdoor wall washer lamp in real time.

[0004] The purpose of the utility model is achieved by adopting the following technical scheme:

[0005] A driving circuit for an outdoor wall washer lamp with a feedback function includes a control system, a main control module and a collection module. The main control module is bidirectionally connected to the control system, and the collection module is bidirectionally connected to the main control module. The collection module is used to collect lamp information and send the collected lamp information to the main control module. The main control module is used to receive the lamp information and feedback the data obtained through internal operation to the control system.

[0006] Further, the collection module includes a current detection circuit, a voltage detection circuit and a temperature detection circuit.

[0007] Further, it also includes a constant current module and a light source module. The main control module is connected to the constant current module, and the constant current module is connected to the light source module.

[0008] Further, it also includes a power supply module, which is used to supply power to the main control module, the constant current module and the light source module.

[0009] Further, it also includes a communication module. The main control module is bidirectionally connected to the control system through the communication module.

[0010] Further, the main control module uses a single-chip microcomputer.

[0011] Further, the model of the single-chip microcomputer is AT32F103CBT6D.

[0012] Compared with the prior art, the beneficial effect of the utility model lies in:

[0013] In the present utility model, the control system issues relevant instructions to the main control module. After receiving the instructions, the main control module sends signals to the acquisition module. The acquisition module collects information of the lamps according to the sent signals, and then sends the collected information to the main control module. After receiving the information fed back by the acquisition module, the main control module performs internal operations and feeds the calculated data back to the control system, achieving a real-time detection effect. By setting the acquisition module, various operating data of the lamps can be collected, processed and transmitted to the main control module, and the main control module then feeds back the basic information of the lamps to the control system. Therefore, users can detect the operating status of the lamps in real time. When a fault is detected, it is convenient to process in time, effectively improving the operation management quality and level of outdoor wall washing lights. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic diagram of the functional circuit of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0015] Figure 2 FIG. is a schematic diagram of the main control module of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0016] Figure 3 FIG. is a schematic diagram of the current detection circuit of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0017] Figure 4 FIG. is a schematic diagram of the voltage detection circuit of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0018] Figure 5 FIG. is a schematic diagram of the temperature detection circuit of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0019] Figure 6 FIG. is a schematic diagram of the light source module of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0020] Figure 7 FIG. is a schematic diagram of the communication module of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0021] Figure 8 FIG. is a schematic diagram of the power supply module of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0022] Figure 9 FIG. is a schematic diagram of the constant current module of an outdoor wall washing light driving circuit with a feedback function provided by the present utility model;

[0023] In the figure: 10, control system; 20, main control module; 30, acquisition module; 40, power supply module; 50, constant current module; 60, light source module. Specific implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0025] In the description of the present application, it should be understood that if terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0026] In the description of the present application, it should be understood that if terms such as "first" and "second" are only used for descriptive purposes, they cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, if terms such as "installation", "connection", and "connection" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0028] Such as Figure 1As shown in the figure, a driving circuit for an outdoor wall washing lamp with a feedback function provided by the present utility model includes a control system 10, a main control module 20, and a collection module 30. The main control module 20 is bidirectionally connected to the control system 10, and the collection module 30 is bidirectionally connected to the main control module 20. The collection module 30 is used to collect lamp information and send the collected lamp information to the main control module 20. The main control module 20 is used to receive the lamp information and feedback the data obtained through internal operation to the control system 10 to perform real-time monitoring of the lamp.

[0029] In this embodiment, the control system 10 issues relevant instructions to the main control module 20. After receiving the relevant instructions, the main control module 20 issues a signal to the collection module 30. The collection module 30 collects the information of the lamp according to the issued signal, and then sends the collected information to the main control module 20. After receiving the information fed back by the collection module 30, the main control module 20 performs internal operation and then feeds the calculated data back to the control system 10 to achieve a real-time detection effect. By setting the collection module 30, various operating data of the lamp can be collected, processed, and transmitted to the main control module 20. The main control module 20 then feeds back the basic information of the lamp to the control system 10. Therefore, users can detect the operating status of the lamp in real time. When a fault is detected, it is convenient to handle in time, effectively improving the operation management quality and level of the outdoor wall washing lamp.

[0030] As a preferred embodiment, the collection module 30 includes a current detection circuit, a voltage detection circuit, and a temperature detection circuit. Refer to Figure 3 , Figure 3 For the current detection circuit: The single-chip microcomputer U1 (AT32F103CBT6D) detects the voltage across R28, and obtains the voltage difference through different ground wire loops (GND, AGND), which is fed back to the pins of the single-chip microcomputer U1 (AT32F103CBT6D) to calculate the current value passed by the lamp; D5 is a 5V voltage regulator diode, C8 is a filter capacitor, and R27 is a current-limiting resistor; Refer to Figure 4 , Figure 4 For the voltage detection circuit: The single-chip microcomputer U1 (AT32F103CBT6D) detects the voltage between the RVF and R14 resistors and calculates the voltage value currently passed by the lamp through comparison; D6 is a 5V voltage regulator diode, and C9 is a filter capacitor; Refer to Figure 5 , Figure 5 For the temperature detection circuit: NTC is a thermistor. When the temperature of the lamp changes, the resistance value of NTC will also change according to different temperatures. The higher the temperature, the smaller the resistance value; The voltage between NTC and R15 also changes with the change of the resistance value of NTC; The single-chip microcomputer calculates the current temperature situation of the lamp by comparing the voltage values of VDD with NTC and R15; C10 is a filter capacitor.

[0031] As a preferred embodiment, it further includes a constant current module 50 and a light source module 60. The main control module 20 is connected to the constant current module 50, and the constant current module 50 is connected to the light source module 60. Refer to Figure 6 and Figure 9 , this module is composed of a chip U4 (UCS7804H), an LED light source and its peripheral circuits. This module receives data sent by the upper-level single-chip microcomputer U1 (AT32F103CBT6D) to the DIM pin of pin 2, and then outputs to the LED light source through R-1, G-1, B-1; sends data to the next-level constant current chip through the DOUT pin of pin 4; R16 is a voltage-dividing resistor, C11 and C12 are filtering capacitors, R20 and R24 are signal current-limiting resistors; RS1 is a sampling resistor; RR1, RR2, RG1, and RB1 are current-limiting resistors for the lamp beads.

[0032] As a preferred embodiment, it further includes a power supply module 40, and the power supply module 40 is used to supply power to the main control module 20, the constant current module 50 and the light source module 60. Refer to Figure 8 , the circuit of the power supply module 40 is mainly composed of step-down voltage-regulating chips U2 (HT7150-1), U8 (AMS117) and their peripheral circuits. The circuit stabilizes the externally input DC voltage to 5VDC, and then performs another step-down voltage regulation to 3.3V; the first-stage step-down conversion to 5V is mainly to supply power to the chip U3 (SN75176B), and at the same time as the input voltage for the next-stage voltage conversion; the second-stage step-down converts the voltage output by the first stage into 3.3V as the power supply source for the single-chip microcomputer U1 (AT32F103CBT6D); C5 and C22 are input filtering capacitors, C19 and C2 are filtering energy storage capacitors for outputting 5V voltage, and at the same time serve as the input capacitors for the U8 chip; C3 and C2 are filtering energy storage capacitors for outputting 3.3V voltage.

[0033] As a preferred embodiment, it further includes a communication module, and the main control module 20 is bidirectionally connected to the control system 10 through the communication module. Refer to Figure 7 , the communication module of this embodiment is composed of a U3 chip and its peripheral circuits. The communication module receives the instructions sent by the control system 10 to control the constant current module 50 to achieve lighting; through the on-off of the matrix switch module 4, the dynamic effect of the corresponding LED lamp group is realized.

[0034] As a preferred embodiment, the main control module 20 uses a single-chip microcomputer.

[0035] Specifically, the model of the single-chip microcomputer is AT32F103CBT6D.

[0036] Refer to Figure 2, the main control module 20 is a main control system composed of a single-chip microcomputer U1 (AT32F103CBT6D) and its peripheral circuits; U1 (AT32F103CBT6D) continuously detects and acquires the voltage value fed back by the circuit of the acquisition module 30 through the AD sampling function pins AD_4, AD_5, and AD_8, and obtains the voltage value through the internal algorithm of the single-chip microcomputer and feeds it back to the control system 10, so that the information parameters obtained by the acquisition module 30 can be seen; through the 43 and 22 pins of the single-chip microcomputer U1 (AT32F103CBT6D), different data strings are sent to the constant current module 50 to achieve different control effects; C4, C27, C25, and C26 are filter capacitors; R6 and C1 form the reset circuit of the single-chip microcomputer; R1, R2, and R3 form an automatic coding short circuit; R8 and R4 are current-limiting resistors; R5 and R9 are pull-down resistors for signals; P1 is the software programming port.

[0037] Based on the above structure, the drive circuit uses the AT32F103CBT6D single-chip microcomputer chip as the main control module 20, receives the information sent by the acquisition module 30 through the pins of the single-chip microcomputer, and sends the data obtained through the internal operation of the single-chip microcomputer back to the control system 10. Therefore, users can detect the operating status of the lamp in real time. The drive circuit is compatible with multiple control protocols, including the RDM communication protocol and the DMX512 protocol; it has a status feedback function and can detect information such as the current, voltage, temperature, and power of the lamp in real time.

[0038] In terms of lighting control: A set of data is sent to the constant current module 50 by using the RX pin of the single-chip microcomputer. Different lighting control effects are achieved by the constant current module 50 receiving the information sent by the single-chip microcomputer. Multiple groups of constant current modules 50 can also be added according to the requirements of different pixel segments to achieve the effect of multi-segment control.

[0039] In the specific content of the above specific implementation manner, the technical features can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not conflict, they should be considered to be within the scope described in this specification.

[0040] The specific content of the above specific implementation manner only expresses several implementation manners of the present invention. Its description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An outdoor wall washer lamp driving circuit with feedback function, characterized in that: The invention comprises a control system (10), a main control module (20) and a collection module (30), wherein the main control module (20) is bidirectionally connected to the control system (10), and the collection module (30) is bidirectionally connected to the main control module (20), wherein the collection module (30) is used to collect lamp information and send the collected lamp information to the main control module (20), and the main control module (20) is used to receive the lamp information and feed back data obtained through internal calculation to the control system (10).

2. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 1, characterized in that: The acquisition module (30) comprises a current detection circuit, a voltage detection circuit and a temperature detection circuit.

3. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 1, characterized in that: It also comprises a constant current module (50) and a light source module (60), the main control module (20) being connected to the constant current module (50), and the constant current module (50) being connected to the light source module (60).

4. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 3, characterized in that: It also comprises a power supply module (40), wherein the power supply module (40) is used to supply power to the main control module (20), the constant current module (50) and the light source module (60).

5. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 1, characterized in that: It also comprises a communication module, through which the main control module (20) is bidirectionally connected to the control system (10).

6. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 1, characterized in that: The main control module (20) adopts a single chip microcomputer.

7. The outdoor wall washer lamp driving circuit with feedback function as claimed in claim 6, characterized in that: The model of the single chip microcomputer is AT32F103CBT6D.

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