CN209767872U - Lamp area with controllable single lamp - Google Patents

Abstract

the utility model discloses a controllable lamp area of single lamp, include: the lighting module comprises a control module and a plurality of lighting modules, the lighting modules comprise lighting units connected with the control module, the voltage conversion units supply power to the control module, the control module can be connected with an external data unit to acquire lighting data, the control modules can be connected with one another to transmit the lighting data, and the control modules control the corresponding lighting units to work according to the lighting data. The purpose of independently controlling the light-emitting units to work is achieved, and complex use requirements are met.

Description

A single-lamp controllable light strip

technical field

The utility model relates to the field of lighting, in particular to a single lamp controllable lamp belt.

Background technique

Light strips are widely used in decoration, lighting and other fields due to their advantages of small size, high brightness, and energy saving. In the prior art, the light-emitting points on the light strip can only be turned on/off together or achieve the effect of a simple running water lamp, and the light-emitting points cannot be controlled individually, resulting in the inability to display each light-emitting point on the light strip according to the demand. Different brightness and color, to achieve complex and diverse display effects to meet the needs of use.

Utility model content

In order to solve the above problems, the utility model provides a single lamp controllable light strip, which can realize the control of a single lighting module to meet the use requirements.

The technical solution adopted by the utility model to solve the technical problem is: a light belt with single lamp controllable, including: a voltage conversion unit connected to an external power supply and several lighting modules, and the lighting module includes a control module and a control module. The light-emitting unit connected to the module, the voltage conversion unit supplies power to the control module, the control module can be connected to the external data unit to obtain lighting data, the control modules can be connected to each other to transmit lighting data, and the control module controls the corresponding light-emitting unit to work according to the lighting data .

Further, the control modules of the several lighting modules are connected in sequence and the first control module is connected to the external data unit to obtain lighting data, and the subsequent control modules obtain lighting data from the previous control module and pass it to the next control module.

Further, the control module includes a processing unit, a latch connected to the processing unit, and a drive module connected to the light emitting unit, and the processing unit is connected to the external data unit or the processing unit of the previous control module to obtain lighting data and transmit it to The latch, the driving module is connected with the latch to obtain lighting data and drive the light emitting unit to work according to the lighting data.

Further, the drive module includes a gray scale adjustment unit and an amplification unit connected to the light emitting unit, the gray scale adjustment unit is connected to a latch to obtain lighting data and generate a PWM signal according to the lighting data, the amplification unit is connected to the gray scale adjustment unit The unit is connected to amplify the PWM signal to drive the light-emitting unit to work.

Further, the lighting module further includes a shaping unit, and the two adjacent control modules are connected through the shaping unit to shape the transmitted lighting data.

Further, the light emitting unit includes red LEDs, green LEDs and blue LEDs all connected to the control module.

Further, a filter capacitor is also included, one end of the filter capacitor is respectively connected to one pole of the external power supply and the voltage input terminal of the voltage conversion unit, and the other end of the filter capacitor is respectively connected to the other pole of the external power supply and the ground terminal of the voltage conversion unit .

Further, the input voltage of the voltage conversion unit is 5V to 24V.

The beneficial effects of the utility model are: the lighting module includes a control module and a light-emitting unit connected to the control module, the control module can receive lighting data from an external data unit, and the control modules of different lighting modules can be connected to each other to transmit lighting data. The lighting data includes the data content corresponding to each lighting module one by one. After the control module obtains the lighting data, it controls the light-emitting unit to work according to the corresponding data content. If the external data unit changes a certain data content in the output lighting data, the corresponding control module After receiving, the module controls the light-emitting unit to produce corresponding changes according to the changed data content, so as to achieve the purpose of individually controlling the work of the light-emitting unit and meet complex use requirements.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a circuit diagram of the utility model.

Detailed ways

Referring to FIG. 1 and FIG. 2 , a single-lamp controllable light strip includes: a voltage conversion unit 40 connected to an external power source and several lighting modules 10 , the lighting modules 10 include a control module 20 and are connected to the control module 20 The light emitting unit 30, the voltage conversion unit 40 supplies power to the control module 20, the control module 20 can receive lighting data from the external data unit, the control modules 20 can be connected to each other to transmit the lighting data, and the control module 20 controls the corresponding lighting data according to the lighting data Unit 30 works.

The lighting module 10 includes a control module 20 and a light emitting unit 30 connected to the control module 20. The control module 20 can be connected to an external data unit to obtain lighting data. The control modules 20 of different lighting modules 10 are connected to each other to transmit lighting data. The data includes the data content corresponding to each lighting module 10 one-to-one. After the control module 20 obtains the lighting data, it controls the light emitting unit 30 to work according to the corresponding data content. If the external data unit changes a certain data content in the output lighting data, the corresponding After receiving, the control module 20 controls the light emitting unit 30 to produce corresponding changes according to the changed data content, so as to achieve the purpose of individually controlling the work of the light emitting unit 30 and meet complex use requirements.

The voltage conversion unit 40 may be a DC-DC converter, a switching power supply and other devices capable of converting voltage. The lighting data output by the external data unit can be provided with an identification code, so that the control module 20 can know the data content of the corresponding part according to the identification code, so as to achieve a one-to-one correspondence.

As a preferred embodiment, the control modules 20 of the several lighting modules 10 are connected sequentially and the first control module 20 is connected to an external data unit to obtain lighting data, and the subsequent control modules 20 obtain lighting data from the previous control module 20 And pass to the next control module 20.

By sequentially connecting the control modules 20 of several lighting modules 10, and connecting the first control module 20 with the external data unit, the lighting data output by the external data unit is received by the first control module 20, and then the first control module 20 will illuminate The data is transmitted to the control module 20 of the next lighting module 10, and the subsequent control modules 20 are transmitted successively. This connection method can make the structure simpler and conform to the physical structure of the light strip.

When the control modules 20 are connected sequentially, the external data unit outputs lighting data to the first control module 20, and the first control module 20 intercepts a part of the data content of the lighting data and passes the remaining data content to the next control module 20, and the next The control module 20 then intercepts a part of the data content of the lighting data and transmits the remaining data content after the interception to the next control module 20, and so on, so that the lighting data output by the external data unit can be realized without being provided with an identification code. The one-to-one correspondence between the content and the lighting module 10 does not require the identification data of the control module 20 , reducing functional requirements.

As a preferred embodiment of the control module 20, the control module 20 includes a processing unit 21, a latch 22 connected to the processing unit 21, and a drive module 23 connected to the light emitting unit 30, the processing unit 21 is connected to the external data unit or the last The processing unit 21 of the control module 20 is connected to obtain the lighting data and transmit it to the latch 22 , and the driving module 23 is connected to the latch 22 to obtain the lighting data and drive the light emitting unit 30 to work according to the lighting data.

When working, the processing unit 21 acquires lighting data from the external data unit or the processing unit 21 of the previous control module 20, and transmits the data content corresponding to the lighting data to the latch 22, and then transmits the lighting data to the next control module 20 The processing unit 21 and the driving module 23 drive the light emitting unit 30 to work according to the lighting data in the latch 22 . The processing unit 21 can be a device capable of processing data such as a single-chip microcomputer or FPGA, and the lighting data can be directly burned into a chip such as a single-chip microcomputer. At this time, the external data unit is the storage unit in the chip. The drive module 23 may be an adjustable constant current drive chip or other device that can generate currents of different magnitudes according to different input signals at the input terminal to change the luminance of the light emitting unit 30 .

As a preferred embodiment of the driving module 23, the driving module 23 includes a grayscale adjustment unit 24 and an amplification unit 25 connected to the light emitting unit 30. The grayscale adjustment unit 24 is connected to the latch 22 to obtain lighting data and The lighting data generates a PWM signal, and the amplifying unit 25 is connected with the gray scale adjusting unit 24 to amplify the PWM signal to drive the light emitting unit 30 to work.

During operation, the grayscale adjustment unit 24 acquires lighting data from the latch 22 and generates PWM signals with different duty ratios, and the grayscale adjustment unit 24 transmits the generated PWM signals to the amplifying unit 25 for amplification processing, so that the PWM signals The light emitting unit 30 can be driven to function. By changing the duty ratio of the PWM signal, the light emitting brightness of the light emitting unit 30 can be changed. The grayscale adjustment unit 24 may be a device such as a single chip microcomputer, FPGA or PWM chip, which can generate PWM signals with different duty ratios according to input data. The amplifying unit 25 may be a circuit or device capable of amplifying input signals, such as an amplifying circuit composed of a triode and a resistor.

In order to keep the lighting data transmitted between the control modules 20 accurate, the lighting module 10 further includes a shaping unit 11, and adjacent control modules 20 are connected through the shaping unit 11 to shape the lighting data transmitted.

The processing unit 21 of the control module 20 transmits the illumination data to the shaping unit 11 for shaping, and then the shaping unit 11 transmits the shaped illumination data to the processing unit 21 of the next control module 20 . The waveform of the lighting data is corrected by the shaping unit 11, so that the distortion generated during the transmission of the lighting data by multiple processing units 21 will not gradually accumulate, preventing errors in the lighting data, keeping the accuracy of the lighting data, and avoiding the failure of the final lighting unit 30 work in the desired state. The shaping unit 11 may be a circuit with a waveform correction function composed of a Schmitt inverter or other devices with a waveform correction function.

As a preferred embodiment of the light emitting unit 30 , the light emitting unit 30 includes red LEDs, green LEDs and blue LEDs all connected to the control module 20 .

When the red LED, the green LED and the blue LED are working, they emit colored light with different brightness for mixing, so that the mixed light can form different hues to meet the use requirements. During operation, the gray scale adjustment unit 24 generates three PWM signals according to the illumination data of the latch 22 and after being amplified by the amplifying unit 25, the three PWM signals respectively drive the red LED, the green LED and the blue LED to emit light.

In order to avoid damage to the voltage conversion unit 40 when the input voltage of the external power supply fluctuates, a filter capacitor 41 is also included, one end of the filter capacitor 41 is connected to one pole of the external power supply and the voltage input end of the voltage conversion unit 40, and the other end of the filter capacitor 41 They are respectively connected to the other pole of the external power supply and the ground terminal of the voltage converting unit 40 .

One end of the filter capacitor 41 is connected to one pole of the external power supply and the voltage input terminal of the voltage conversion unit 40, and the other end of the filter capacitor 41 is connected to the other pole of the external power supply and the ground terminal of the voltage conversion unit 40, so that the external power input When the voltage fluctuates, the fluctuating part is filtered by the filter capacitor 41 without affecting the voltage conversion unit 40, thereby maintaining the stable operation of the voltage conversion unit 40 and avoiding damage due to input voltage fluctuations.

As a preferred implementation manner, the input voltage of the voltage converting unit 40 is 5V to 24V.

The input voltage range of the voltage conversion unit 40 is 5V to 24V, which can be used under different external power supply conditions and expand the application range.

The lighting module 10 can be an SK6813 chip, and at this time, the external data unit can be a controller of the SK6813.

The above-mentioned embodiments are only preferred solutions of the utility model, and the utility model also has other implementation solutions. Those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present utility model, and these equivalent modifications or replacements are all included in the scope set by the claims of the present application.

Claims (8)

1. A light strip controllable by a single lamp, characterized in that it comprises: a voltage conversion unit (40) connected to an external power supply and several lighting modules (10), and the lighting module (10) includes a control module (20 ) and the light emitting unit (30) connected to the control module (20), the voltage conversion unit (40) supplies power to the control module (20), the control module (20) can receive lighting data from the external data unit, and the control module (20) They can be connected to each other to transmit lighting data, and the control module (20) controls the corresponding light emitting unit (30) to work according to the lighting data. 2. A single-lamp controllable light strip according to claim 1, characterized in that: the control modules (20) of the several lighting modules (10) are connected in sequence and the first control module (20) is connected to the external The data unit is connected to obtain lighting data, and the subsequent control module (20) obtains the lighting data from the previous control module (20) and transmits it to the next control module (20). 3. The single-lamp controllable light strip according to claim 2, characterized in that: the control module (20) includes a processing unit (21), a latch (22) connected to the processing unit (21) ) and the drive module (23) connected with the light emitting unit (30), the processing unit (21) is connected with the external data unit or the processing unit (21) of the previous control module (20) to obtain lighting data and transmit it to the latch (22), the driving module (23) is connected with the latch (22) to acquire lighting data and drive the light emitting unit (30) to work according to the lighting data. 4. The single-lamp controllable light strip according to claim 3, characterized in that: the driving module (23) includes a gray scale adjustment unit (24) and an amplifier connected to the light emitting unit (30). unit (25), the grayscale adjustment unit (24) is connected with the latch (22) to obtain lighting data and generates a PWM signal according to the lighting data, and the amplification unit (25) is connected with the grayscale adjustment unit (24) to convert the PWM signal Amplify and drive the light emitting unit (30) to work. 5. The light strip controllable by a single lamp according to claim 2, characterized in that: the lighting module (10) further includes a shaping unit (11), and one of the two adjacent control modules (20) are connected by a shaping unit (11) to shape the transmitted lighting data. 6. The single-lamp controllable light strip according to claim 1, characterized in that: the light emitting unit (30) includes red LEDs, green LEDs and blue LEDs all connected to the control module (20). 7. A single-lamp controllable light strip according to claim 1, characterized in that it further comprises a filter capacitor (41), one end of the filter capacitor (41) is respectively connected to one pole of an external power supply and a voltage conversion unit ( 40), the other end of the filter capacitor (41) is respectively connected to the other pole of the external power supply and the grounding end of the voltage conversion unit (40). 8. The single-lamp controllable light strip according to claim 1, characterized in that: the input voltage of the voltage conversion unit (40) is 5V to 24V.