CN113141690A - Single-point controllable light-emitting device and system - Google Patents
Single-point controllable light-emitting device and system Download PDFInfo
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H—ELECTRICITY
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
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- H05B47/175—Controlling the light source by remote control
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Abstract
The embodiment of the invention discloses a single-point controllable light-emitting device, which comprises: the control module is used for determining lamplight display data to be displayed and generating a light-emitting control instruction according to the lamplight display data; the light-emitting driving module is connected to the control module and used for receiving the light-emitting control instruction and generating a plurality of driving signals according to the light-emitting control instruction; the luminous bodies are connected to the luminous driving module, each luminous body corresponds to one driving signal, and the luminous bodies are used for being driven to emit light by the corresponding driving signals. Therefore, the driving signal corresponding to each luminous body can be determined according to the received light display data, so that each reflector can be independently controlled, a more refined light control effect and a more refined light display effect are achieved, and the method can adapt to more refined application scenes and has more application possibilities.
Description
Technical Field
The invention relates to the technical field of lamp control, in particular to a single-point controllable light-emitting device and a single-point controllable light-emitting system.
Background
As the market demand for lighting devices, especially controllable lighting devices, increases, the technical demand for controllable lighting devices also tends to be fine-controlled to meet the demands of different application scenarios. In the prior art, most of the lighting equipment with a plurality of light-emitting lamp beads is still driven by a single driving signal, so that the lighting equipment cannot adapt to more delicate application scenes and only can realize rough lighting effect. Therefore, the defects in the prior art need to be solved.
Disclosure of Invention
Compared with the traditional method in which a plurality of light-emitting lamp beads are driven simultaneously by using a single driving signal, the single-point controllable light-emitting device and the single-point controllable light-emitting system can determine the driving signal corresponding to each light-emitting body according to the received light display data, so that each light-reflecting body is controlled independently, a more refined light control effect and a more refined light display effect are achieved, and the single-point controllable light-emitting device and the single-point controllable light-emitting system can adapt to more refined application scenes and have more application possibilities.
In order to solve the above technical problem, a first aspect of the present invention discloses a single-point controllable light emitting device disposed between a control unit and a thyristor unit, the device comprising:
the control module is used for determining lamplight display data to be displayed and generating a light-emitting control instruction according to the lamplight display data;
the light-emitting driving module is connected to the control module and used for receiving the light-emitting control instruction and generating a plurality of driving signals according to the light-emitting control instruction;
the luminous bodies are connected to the luminous driving module, each luminous body corresponds to one driving signal, and the luminous bodies are used for being driven to emit light by the corresponding driving signals.
As an optional implementation manner, in the first aspect of the present invention, the human-computer interaction module is configured to receive an input instruction of a user, so as to generate parameter data in the lighting display data, and display an operation result corresponding to the input instruction;
and/or the presence of a gas in the gas,
and the power supply module is provided with a power supply anti-reverse protection and filter circuit and is used for supplying power to the light-emitting device.
As an optional implementation manner, in the first aspect of the present invention, the light emitting driving module is a PWM driving module; the control module includes:
the receiving unit is used for receiving the lamplight display data;
the image determining unit is used for determining the brightness values of a plurality of light-emitting pixel points in the lamplight image data to be displayed according to the lamplight display data; each luminous pixel point corresponds to one luminous body;
and the PWM analysis unit is used for determining the PWM driving value of each corresponding luminous body according to the brightness value of each luminous pixel point and a preset brightness value-PWM value conversion relation and sending the PWM driving value to the luminous driving module.
As an optional implementation manner, in the first aspect of the present invention, the light emitting driving module includes a plurality of PWM dimming chips, and the driving signal is a current driving signal; the PWM dimming chip is connected with at least one luminous body; the PWM dimming chip is used for generating a corresponding current driving signal when receiving the PWM driving value so as to control the corresponding luminous body to emit light with the brightness value.
As an optional implementation manner, in the first aspect of the present invention, the receiving unit is a DMX communication circuit, and the light display data is DMX data.
In a second aspect of the invention, a lighting system is disclosed, the system comprising a control device and a plurality of single-point controllable lighting devices as disclosed in the first aspect of the invention connected to the control device; and the control device is used for determining the lamplight display data corresponding to each light-emitting device when receiving a total lamplight display instruction, and sending the lamplight display data to the corresponding light-emitting device for light-emitting display.
As an alternative embodiment, in the second aspect of the present invention, the total lighting display instruction includes a combination of one or more of total lighting display data, a display mode, a display speed, a display brightness, and a display time; the control device includes:
the data communication module is used for receiving the total light display instruction;
the display data determining module is used for determining a multi-frame total display image from the total lamplight display data according to the display mode;
and the data splitting module is used for splitting each frame of the total display image into a plurality of light display data according to interface rules of the plurality of light emitting devices, and sending each light display data to the corresponding light emitting device.
As an optional implementation manner, in the second aspect of the present invention, the interval time at which the data splitting module sends each frame of the set of lighting display data including a plurality of the lighting display data is the display speed.
As an optional implementation manner, in the second aspect of the present invention, a master-slave communication mode is used between the plurality of light emitting devices, wherein one of the light emitting devices is a master, and the rest of the light emitting devices are connected to the master; the host is used for receiving all the light display data and sending the light display data to the light-emitting device for light-emitting display.
As an alternative embodiment, in the second aspect of the present invention, the control device and the plurality of light emitting devices are connected in series; the control device is used for sending a light display data set consisting of all the light display data to the nearest light-emitting device; except for the last light-emitting device in the series queue, each light-emitting device is used for storing the corresponding light display data for displaying when receiving the light display data set, and sending the light display data set with the stored light display data deleted to the next light-emitting device.
Compared with the prior art, the invention has the following beneficial effects:
the embodiment of the invention discloses a single-point controllable light-emitting device, which comprises: the control module is used for determining lamplight display data to be displayed and generating a light-emitting control instruction according to the lamplight display data; the light-emitting driving module is connected to the control module and used for receiving the light-emitting control instruction and generating a plurality of driving signals according to the light-emitting control instruction; the luminous bodies are connected to the luminous driving module, each luminous body corresponds to one driving signal, and the luminous bodies are used for being driven to emit light by the corresponding driving signals. Compared with the mode of simultaneously driving a plurality of light-emitting lamp beads by using a single driving signal in the traditional method, the light-emitting device with the controllable single point can determine the driving signal corresponding to each light-emitting body according to the received light display data, so that each reflector is independently controlled, a more refined light control effect and a more refined light display effect are realized, the light-emitting device can adapt to a more refined application scene and has more application possibilities.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic functional block diagram of a single-point controllable light emitting device according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a control module according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a receiving unit according to an embodiment of the disclosure;
fig. 4 is a circuit diagram of a light-emitting driving module unit according to an embodiment of the disclosure;
FIG. 5 is a schematic circuit diagram of a human-computer interaction module according to an embodiment of the present invention;
FIG. 6 is a schematic circuit diagram of a power supply module according to an embodiment of the disclosure;
FIG. 7 is a functional block diagram of a lighting system according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a connection of a lighting system according to an embodiment of the present invention;
FIG. 9 is a diagram illustrating a software architecture of a control module according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of another embodiment of a lighting system according to the present disclosure;
FIG. 11 is a schematic diagram of a connection of another lighting system according to an embodiment of the present disclosure;
FIG. 12 is a schematic diagram of a circuit design of a light emitter according to an embodiment of the present invention;
FIG. 13 is a schematic circuit diagram of a driver module according to an embodiment of the present disclosure;
FIG. 14 is a schematic circuit diagram of another power supply module according to the disclosure;
FIG. 15 is a schematic diagram of a connection of another lighting system according to an embodiment of the present disclosure;
fig. 16 is a schematic connection diagram of another lighting system according to an embodiment of the disclosure.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, article, or article that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or article.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Compared with the mode of simultaneously driving a plurality of light-emitting lamp beads by using a single driving signal in the traditional method, the single-point controllable light-emitting device and the single-point controllable light-emitting system can determine the driving signal corresponding to each light-emitting body according to the received light display data, so that each reflector is independently controlled, a more refined light control effect and a more refined light display effect are realized, the single-point controllable light-emitting device and the single-point controllable light-emitting system can adapt to a more refined application scene and have more application possibilities. The following are detailed below.
Example one
Referring to fig. 1, fig. 1 is a schematic diagram of a functional module of a single-point controllable light emitting device according to an embodiment of the present invention. As shown in fig. 1, the single-point controllable light emitting device includes a control module 101, a light emitting driving module 102 and a plurality of light emitters 103, wherein the light emitting driving module 102 is connected to the control module 101, and the plurality of light emitters 103 are connected to the light emitting driving module 102.
Specifically, the control module 101 is configured to determine light display data to be displayed, generate a light emission control instruction according to the light display data, and send the light emission control instruction to the light emission driving module 102. Optionally, the lighting control instruction is used to indicate the lighting parameters of each light emitter 103, and further optionally, the lighting parameters may include one or more of lighting, lighting brightness, and lighting time.
Specifically, the light-emitting driving module 102 is configured to receive the light-emitting control instruction, generate a plurality of driving signals corresponding to the plurality of light-emitting bodies 103 according to the light-emitting control instruction, and send the driving signals to the corresponding light-emitting bodies 103 to drive the light-emitting bodies to emit light.
In a specific implementation manner of the embodiment of the present invention, the control module 101 is an MCU controller with a model of STC8G2K32S4, and a circuit schematic diagram thereof is shown in fig. 2. The LED lamp is a core control processing chip of a light-emitting device, is provided with an internal crystal oscillator 32MHZ, an EPROM, a timer, an IIC interface, a serial port and the like, and is mainly characterized by 45-path hardware PWM and high refreshing frequency.
As an alternative embodiment, the light emitting driving module 102 is a PWM driving module; as shown in fig. 1, the control module 101 includes:
a receiving unit 1011 for receiving the light display data;
an image determining unit 1012, configured to determine, according to the lighting display data, brightness values of a plurality of light-emitting pixels in lighting image data to be displayed; each luminous pixel point corresponds to one luminous body;
the PWM analyzing unit 1013 is configured to determine, according to the luminance value of each light-emitting pixel point and according to a preset luminance value-PWM value conversion relationship, a PWM driving value of each corresponding light-emitting body, and send the PWM driving value to the light-emitting driving module 102.
Optionally, the receiving unit 1011 is a DMX communication circuit, and the light display data is DMX data. In conjunction with the above embodiments, a circuit diagram of an implementation of the receiving unit 1011 can be referred to fig. 3, which receives the DMX signal from the host or the console or transmits the DMX signal through the 485 differential control chip.
As an alternative embodiment, the light-emitting driving module 102 includes a plurality of PWM dimming chips, and the driving signal is a current driving signal. Specifically, each PWM dimming chip is connected to at least one light emitting body, wherein the PWM dimming chip is configured to generate a corresponding current driving signal when receiving the PWM driving value, so as to control the corresponding light emitting body to emit light at a brightness value.
In combination with the above specific embodiment, a specific implementation circuit diagram of the light-emitting driving module 102 may refer to fig. 4, in the specific embodiment, the plurality of light-emitting bodies 103 are 35 LED lamp beads, which are arranged in a 5 × 7 rectangular array, and then the light-emitting driving module 102 employs 12 three-way linear constant-current chips with the model number of X30-ESOP8 to respectively control each LED lamp bead, and the driving capability of the chip is strong, so that the working current of a channel corresponding to each LED lamp bead can reach 300 mA.
As an alternative implementation manner, in the embodiment of the present invention, the lighting display data may include one or more of a combination of a display mode, a display time, display data, a display speed, and a display brightness. Specifically, the display mode may be a plurality of preset display modes for indicating a plurality of display effects of the light emitting device, and optionally, the display effects may include, but are not limited to, static character effects and dynamic character effects, where the static character effects may include effects of numbers 0 to 9, letters a to Z, arrows left, right, left turn, right turn, and the like, and the dynamic character effects may include effects of numbers 0 to 9 jump, letters a to Z jump, arrows indicating left and right flow, and the like.
Optionally, the display data may be real-time transmission or preset display data, for example, display data in a DMX format. Alternatively, the display speed may be set by receiving a user command, which may be in 1-24 steps, corresponding to 1-24 frames of data per second. Alternatively, the display brightness may be 0% -100%, corresponding to each brightness dimension in off-on.
As an alternative embodiment, as shown in fig. 1, the apparatus further includes:
and the human-computer interaction module 104 is used for receiving an input instruction of a user so as to generate parameter data in the light display data. Optionally, the parameter data includes one or more of a display mode, a display time, a display speed, and a display brightness.
With reference to the above specific implementation scheme, a specific implementation circuit diagram of the human-computer interaction module 104 can refer to fig. 5, which is a key display circuit and has a function of an artificial desktop, and the key display circuit has 4 keys, an OLED display screen and a DMX communication port, and the DMX communication port selects an RJ485 terminal, so that DMX data communication and download burning interfaces can be performed, thereby facilitating program upgrade well, and the installed product does not need to be dismounted every time, improving production effect and facilitating product upgrade.
As an alternative embodiment, as shown in fig. 1, the apparatus further includes:
and a power supply module 105 for supplying power to the light emitting device. With reference to fig. 6, in particular, a power supply reverse protection and filter circuit is disposed in the power supply module 105, and its main functions are to prevent the reverse protection of the positive and negative connections of the power supply, and filter the power supply and interference signals, so as to supply power to each module in the light-emitting device.
Therefore, by implementing the embodiment of the invention, compared with a mode of simultaneously driving a plurality of light-emitting lamp beads by using a single driving signal in the traditional method, the method can determine the driving signal corresponding to each light-emitting body according to the received light display data, thereby realizing the independent control of each light-reflecting body, further realizing more refined light control effect and light display effect, being suitable for more refined application scenes and having more application possibilities.
Example two
The embodiment of the invention discloses a lighting system, which comprises a control device 20 and a plurality of single-point controllable lighting devices 10 connected to the control device 20, as shown in fig. 7. As shown in fig. 1, the single-point controllable light emitting device 10 includes a control module 101, a light emitting driving module 102 and a plurality of light emitters 103, wherein the light emitting driving module 102 is connected to the control module 101, and the plurality of light emitters 103 are connected to the light emitting driving module 102.
Specifically, the control module 101 is configured to determine light display data to be displayed, generate a light emission control instruction according to the light display data, and send the light emission control instruction to the light emission driving module 103. Optionally, the lighting control instruction is used to indicate the lighting parameters of each light emitter 103, and further optionally, the lighting parameters may include one or more of lighting, lighting brightness, and lighting time. Specifically, the light-emitting driving module 103 is configured to receive a light-emitting control instruction, generate a plurality of driving signals corresponding to the plurality of light-emitting bodies 103 according to the light-emitting control instruction, and send the driving signals to the corresponding light-emitting bodies 103 to drive the light-emitting bodies to emit light.
As an alternative embodiment, the light emitting driving module 102 is a PWM driving module; as shown in fig. 1, the control module 101 includes:
a receiving unit 1011 for receiving the light display data; optionally, the receiving unit 1011 is a DMX communication circuit, and the light display data is DMX data.
An image determining unit 1012, configured to determine, according to the lighting display data, brightness values of a plurality of light-emitting pixels in lighting image data to be displayed; each luminous pixel point corresponds to one luminous body;
the PWM analyzing unit 1013 is configured to determine, according to the luminance value of each light-emitting pixel point and according to a preset luminance value-PWM value conversion relationship, a PWM driving value of each corresponding light-emitting body, and send the PWM driving value to the light-emitting driving module 102.
As an alternative embodiment, the light-emitting driving module 102 includes a plurality of PWM dimming chips, and the driving signal is a current driving signal. Specifically, each PWM dimming chip is connected to at least one light emitting body, wherein the PWM dimming chip is configured to generate a corresponding current driving signal when receiving the PWM driving value, so as to control the corresponding light emitting body to emit light at a brightness value.
Optionally, as shown in fig. 1, the apparatus further includes:
and the human-computer interaction module 104 is used for receiving an input instruction of a user to generate parameter data in the light display data and displaying an operation result corresponding to the input instruction. Optionally, the parameter data includes one or more of a display mode, a display time, a display speed, and a display brightness.
A power supply module 105, configured to supply power to the light emitting device 10. Specifically, the power supply module 105 is provided with a power supply reverse protection and filter circuit, which mainly functions to prevent reverse protection of positive and negative connections of the power supply, and filter the power supply and interference signals, so as to supply power to each module in the light-emitting device.
Specifically, the technical details of each module in the single-point controllable light emitting device 10 can be referred to in the description of the first embodiment, and are not described herein again.
Specifically, in the embodiment of the present invention, the control device 20 is configured to determine the lighting display data corresponding to each light-emitting device 10 when receiving the total lighting display instruction, and send the lighting display data to the corresponding light-emitting device 10 for lighting display.
In an alternative embodiment, the total light display instruction includes a combination of one or more of total light display data, display mode, display speed, display brightness, and display time. Specifically, the display mode may be a plurality of preset display modes for indicating a plurality of display effects of the light emitting device, and optionally, the display effects may include, but are not limited to, static character effects and dynamic character effects, where the static character effects may include effects of numbers 0 to 9, letters a to Z, arrows left, right, left turn, right turn, and the like, and the dynamic character effects may include effects of numbers 0 to 9 jump, letters a to Z jump, arrows indicating left and right flow, and the like.
Optionally, the display data may be real-time transmission or preset display data, for example, display data in a DMX format. Alternatively, the display speed may be set by receiving a user command, which may be in 1-24 steps, corresponding to 1-24 frames of data per second. Alternatively, the display brightness may be 0% -100%, corresponding to each brightness dimension in off-on.
Alternatively, as shown in fig. 7, the control device 20 includes:
the data communication module 201 is used for receiving a total light display instruction;
the display data determining module 202 is configured to determine a multi-frame total display image from the total lighting display data according to the display mode;
and the data splitting module 203 is configured to split each frame of the total display image into a plurality of lighting display data according to interface rules of the plurality of light-emitting devices, and send each lighting display data to the corresponding light-emitting device.
Optionally, the data splitting module 203 sends the interval time of each frame of the light display data set including the plurality of light display data as the display speed.
In an alternative embodiment, as shown in fig. 7, a plurality of light emitting devices 10 are all connected to a control device and are connected to each other, a master-slave communication mode is set between the plurality of light emitting devices 10, one of the light emitting devices 10 is a master, and the remaining light emitting devices 10 are slaves and are all connected to the master, wherein the master is configured to receive all light display data and send the light display data to the light emitting devices for light emitting display, and specifically, the master can retain the light display data corresponding to the master for display and send the other light display data to the corresponding slaves for display.
Optionally, a plurality of light emitting devices 10 are connected through a 485 communication bus, a connection schematic diagram of a specific embodiment of the invention may refer to fig. 8, in this embodiment, the light emitting devices 10 may be set to a host function mode, or may be set to a DMX function mode, specifically, the 485 communication bus only allows one light emitting device to serve as a host to transmit data, and any one light emitting device may serve as a host, and the other light emitting devices serve as slaves to receive data. The number of slave machines of the 485 communication bus is unlimited, and a signal amplifier can be added if the 485 communication bus is not enough in signal weak carrying capacity.
Specifically, in the embodiment, any one light-emitting device on the 485 communication bus is set to work in a host functional mode through key operation of the human-computer interaction module, and the host functional mode can set a display mode comprising static characters, dynamic characters, an LED switch and an LED test; the other light-emitting devices work in a DMX function mode through key setting, the address of the DMX equipment is 1-14, the maximum channel number of each light-emitting device is 35CH, namely the maximum channel number 14 multiplied by 35 is 490CH, and the maximum channel number cannot exceed 512 CH. In this mode, the character lamp can automatically identify whether the signal is a host signal or a signal of a control device, and automatically select the number of received channels and the mode according to different main control equipment. In the control device control mode, all the light emitting devices on the 485 bus are set to the DMX mode, i.e., the receive signal mode. In the master-slave mode, the light-emitting device master outputs data to control light emission, and the output data is sent to other light-emitting devices serving as slaves through a 485 communication bus, so that the master-slave light-emitting effect is consistent. In the case of control by the control device, the desired data transmission may be edited or manually operated, and the light-emitting device controls the light-emitting body to emit light when receiving the data.
Meanwhile, with reference to the specific implementation in the first embodiment of the above connection structure of the light emitting device 10 in the embodiment of the present invention, a flow diagram of a software architecture in the control module 101 of the light emitting device 10 can be referred to fig. 9, where the flow implementation of the software architecture includes:
starting: and the system is electrified to turn on the lamp and start to enter the running program.
Initializing the system and restoring the state: after the power-on delay waits for the system hardware to work stably, starting a watchdog, carrying out variable zero clearing initialization, initialization of a timer, serial port interruption, hardware PWM (corresponding to 35 LEDs), EEPROM, IIC, ADC and other related registers of 35CH, defining and assigning variables, and initializing an OLED display mode; the last shutdown data stored in the EEPROM memory is read and comprises related data such as a main function key value, a device DMX physical address, a DMX mode, a static character value, a dynamic character value, a brightness value, a speed value, a Chinese and English display mode, whether a display mark value is closed or not, whether the display mark value is reversed or not and the like, the state before the last shutdown is restored according to the stored data, the LED and the IIC interface are controlled to be lightened by the PWM value of 35CH, the OLED is driven to display, and preparation is made for entering a main program.
③ the main program cycle begins: and monitoring the watchdog regularly, preparing to enter a main program, and entering a circular operation function through a main program inlet.
Fourthly, key operation processing: and calling a key processing function, circularly scanning whether a key is pressed to enter the operation, outputting the data selected by the operation and storing the data in an EEPROM (electrically erasable programmable read-only memory), and otherwise, exiting.
Function mode processing: calling all function functions, judging whether the function mode is an online function mode (slave machine or DMX mode), if the function mode is the online function mode, receiving data of a host machine or a DMX console (namely the control device 20) through a serial interface, and if the received data is the host machine data, outputting 35CH LED data to synchronously display the consistent effect with the host machine, so that the synchronous work of the master machine mode and the slave machine mode of a plurality of character lamps is realized. The character lamps receive data of corresponding channels according to local DMX physical addresses, each character lamp occupies 35CH data at most, wherein the setting of the DMX physical addresses is 1-14, 14 × 35CH 490CH does not exceed 512CH, and the character lamps are designed according to DMX standard format data 512 CH. When the data of the DMX console is received, the LED data of the output 35CH displays the corresponding effect. If the function mode is the single machine function mode, the function of the single machine function mode is called. And if the judgment is that the dynamic character mode calls a dynamic character processing function, the dynamic character processing function is called according to the selected dynamic character effect, wherein the dynamic character effect comprises the running change of numbers 0-9, the running change of letters A-Z and the left-right flow indicated by an arrow, the calling speed processing function automatically operates and outputs 35CH LED data according to the selected speed value in a combined manner, 1-24 speed values are designed according to the visual delay of human eyes, 1 frame data is output at the slowest speed per second, and 24 frame data is output at the fastest speed per second 24. If the static character mode calls the static character processing function, the LED data of the 35CH is operated and output according to the selected static character effects including numbers 0-9, letters A-Z, arrow left, right, left turn, right turn and the like.
Sixthly, OLED data display processing: and calling an OLED processing function, and driving and controlling OLED display through an IIC interface according to the selected functional mode, the Chinese and English display mode, the forward and reverse display mode or the online no-signal prompt and the like.
Processing brightness data and outputting an LED: and calling a brightness processing function, and multiplying and dividing the selected brightness V value by 0-100% and the data per CH of 35CH by 100% to obtain an output value of the PWM. And calling PWM processing functions, and assigning values to each single PWM register according to the output value of PWM, wherein the number of the registers is 35. The LED brightness of each point is controlled to be 0-100% by outputting a PWM value.
And finally: the master function is exited.
In a specific embodiment, the connection mode of the control device 20 and the plurality of light emitting devices 10 can be as shown in fig. 10, wherein the control device 20 is connected to the plurality of groups of light emitting devices 10 through a plurality of video slave controllers respectively through video communication lines, the control device 20 reads and processes video file data, which can be data of a memory card or a host computer server, and divides and processes the data into a plurality of parts to be sent to the respective video slave controllers through video buses, wherein the video communication buses can be DVI, VGA, HDMI or 485 differential communication lines, and optionally, the control device 20 can also be connected with the plurality of video slave controllers through wireless communication.
The video slave controller converts received video file data into a DMX data format through a video communication bus, and forwards the DMX data format to each group of light-emitting devices 10 through a 485 communication bus, wherein the DMX equipment address of each light-emitting device 10 is 1-14.
Each group of light-emitting devices 10 is connected with a corresponding video sub-controller in parallel through a 485 communication bus, and the video sub-controllers are connected with the control device 20 in parallel through video communication buses. Each set of light emitting devices 10 is set in the DMX operation mode by a key and set to DMX physical addresses 1 to 14, respectively. The number of groups of light emitting devices 10 may be unlimited, and depends on the data processing capability of the control device 20 and the number of video splitters and ports, and the address of each light emitting device 10 in each group is not allowed to be repeated. Optionally, the addresses of the video slave controllers are sequentially set, and the addresses are set in a manner of adding 1 item by item from 1.
Specifically, the control device 20 reads data of the memory card or the upper computer server, comprehensively divides the data according to the number of the video branch controllers, video effect data, and a position light distribution map of character lights, and then sends each piece of data to the video branch controllers through the video communication bus according to a specified format, and the video branch controllers receive the local data and send the data converted into a DMX512 format to each light-emitting device 10 in sequence. The light-emitting device 10 drives the PWM output from 1CH to 35CH to control the LED lamp beads according to the received data sequence.
EXAMPLE III
The embodiment of the invention discloses a light-emitting system, which is similar to the light-emitting system in the second embodiment, except that in the second embodiment, as shown in fig. 11, a control device 20 and a plurality of light-emitting devices 10 are connected in series; the control device 20 is used for sending the light display data set composed of all the light display data to the nearest light-emitting device 10; except for the last light-emitting device 10 in the series queue, each light-emitting device 10 is configured to store the light display data corresponding to the light-emitting device 10 for display when receiving the light display data set, and send the light display data set from which the stored light display data is deleted to the next light-emitting device 10.
Therefore, the embodiment of the present invention can realize the series control of the plurality of light emitting devices 10, can be used for the light emitting control of the linear light emitting pattern, and can realize more convenient linear light emitting control in the application of the scene.
In a specific implementation of the embodiment of the present invention, the plurality of light emitting bodies 103 of the light emitting device 10 are 30 LED beads, which are integrated into a 30-way LED module, and the schematic diagram thereof can refer to fig. 12, where the LED1 is a 30-way common-anode LED module, the pins 31 and 32 are anodes of LEDs, and the pins 1 to 30 are cathodes of 30-way LEDs, and the bottom of the packaging manner has a large heat dissipation pad, so that the packaging manner has good heat conduction and small volume, and is very suitable for being used as a small-volume lamp, and can achieve a higher resolution after being spliced into a light emitting display screen.
In this embodiment, the control module 101 and the light-emitting driving module 102 may be integrated into a driver module, and a circuit diagram thereof may refer to fig. 13, specifically, in this embodiment, the driver module includes three driver modules of UCS1912B, the driver module is a 12-channel LED single-wire cascade driving chip, and circuits such as an MCU digital interface, a data latch, and an LED high-voltage driving are integrated inside the driver module, and the peripheral controller controls individual brightness change of the chip, and the cascade control implements dot matrix light-emitting video display of the spliced display screen. The method is characterized by comprising the following steps: 1. single-wire data transmission, the interference resistance is strong, and infinite cascade connection can be realized. 2. And the internal shaping forwards data, and the transmission distance between a point and a point is long. 3. The baud rate of the communication transmission frequency is 800Kbit/S, and 1024 points can be controlled; 4. the output interface PWM can adjust 256 groups of gray scales, and the refreshing frequency is 1.8 KhZ/S. In fig. 12, U1, U2, and U3 are driver modules that mainly receive data, forward data, and drive LEDs. Pin 1 of UCS1912B is the VDD supply terminal and supplies power to the chip after voltage reduction and C1 filtering by R1. Pin 16 is a receive data DIN port that receives the DMX controller 12CH data and shapes other data for forwarding to the next UCS1912B chip via the DOUT port. 256 levels of brightness variation can be achieved individually for each of the 12 PWM ports on pins 3-8 and 9-15, respectively, where a resistor is connected in series with each port to protect the chip from dropping power.
Alternatively, in this embodiment, an implementation circuit diagram of the power supply module 105 can be seen in fig. 14, which has a power supply reverse protection and filter circuit, and mainly functions to prevent reverse protection of positive and negative connections of the power supply, filter the power supply and interference signals, and provide power to each module. The D1-IN4007 diode is used for power supply reverse protection, and when the positive electrode and the negative electrode of a power line are connected reversely, the circuit is cut off to work through the unidirectional conductive characteristic of the diode so as to protect the whole circuit. The C2, C3 and C4 are used as capacitors to realize power supply filtering.
Alternatively, in this embodiment, the control device 20 is configured to process video file data and send the data to the 30-way LED module light via a DMX single-core communication line in DMX format. The method is characterized by comprising the following steps: 1.16 bit gray control setting, and the software carries Gamma correction processing. 2. The method supports various points, lines and surface light sources, supports various rules and specially-shaped data processing. 3. The communication port supports data transmission including 1024 pixels. 4. And the SD card effect file and the data sent by the upper computer controller are supported to be played. 5, the DMX controller can be used singly or in cascade connection.
In this embodiment, the light emitting device 10 is a 30-channel LED module lamp, and the control device 20 is a DMX controller, and the connection mode can be referred to fig. 15, wherein a plurality of 30-channel LED module lamps are connected in series with the DMX controller, and a video file is edited in advance by using host-dedicated software according to the number of the LED connected in series, the splicing shape, the control effect, and the LED color (for example, monochrome or color), and saved in the SD card in a prescribed LED format. When the LED lamp works, the DMX controller reads data of the SD card and sends the data to the 30 paths of LED module lamps according to the DMX format, each 30 paths of LED module lamps receive the data of the lamp, and the data are shaped and then forwarded to the next lamp until the last lamp obtains the data and displays the data.
In a further embodiment, more than 30 LED module lamps can be introduced to realize a larger screen of the light-emitting display for video animation, which is suitable for various display shapes and scenes. The connection diagram of the device can refer to fig. 16, wherein the video master controller mainly reads and processes video file data, which may be data of a memory card or an upper computer server. The data are divided and processed into a plurality of copies and sent to each DMX controller through a video bus, wherein the video communication bus can be a DVI, VGA, HDMI or 485 differential communication line and the like, and can also be in a wireless communication mode. The DMX controller mainly converts received video file data into a DMX data format through a video communication bus and forwards the DMX data to each LED module lamp through a single-core communication bus. The working principle of the whole device is as follows: 1. the LED module lamps of each series loop are connected with the corresponding DMX controller in a series mode through a single-core communication line, and the DMX controllers are connected with the video master controller in a video communication bus hand-in-hand parallel mode. 2. The video master controller reads data of a memory card or an upper computer server, comprehensively divides the data according to the number of the DMX controllers, video effect data and a position light distribution diagram of character lights, and then sends each part of data to the DMX controllers through a video communication bus according to a specified format. The DMX controller receives the local data and transmits the data converted into DMX512 format to each LED module lamp in sequence. The data received by the LED module lamp sequentially drive the PWM output to control the LED from 1CH to 30CH, and other data are shaped and forwarded to the next LED module lamp.
The above-described embodiments of the apparatus are merely illustrative, and the modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above detailed description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on such understanding, the above technical solutions may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, where the storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM), or other disk memories, CD-ROMs, or other magnetic disks, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
Finally, it should be noted that: the single-point controllable light emitting device and the system disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, and are only used for illustrating the technical solutions of the present invention, not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A single point controllable light emitting device, said device comprising:
the control module is used for determining lamplight display data to be displayed and generating a light-emitting control instruction according to the lamplight display data;
the light-emitting driving module is connected to the control module and used for receiving the light-emitting control instruction and generating a plurality of driving signals according to the light-emitting control instruction;
the luminous bodies are connected to the luminous driving module, each luminous body corresponds to one driving signal, and the luminous bodies are used for being driven to emit light by the corresponding driving signals.
2. A single point controllable lighting device as claimed in claim 1, further comprising:
the man-machine interaction module is used for receiving an input instruction of a user to generate parameter data in the lamplight display data and displaying an operation result corresponding to the input instruction;
and/or the presence of a gas in the gas,
and the power supply module is provided with a power supply anti-reverse protection and filter circuit and is used for supplying power to the light-emitting device.
3. The single-point controllable lighting device according to claim 2, wherein said lighting driving module is a PWM driving module; the control module includes:
the receiving unit is used for receiving the lamplight display data;
the image determining unit is used for determining the brightness values of a plurality of light-emitting pixel points in the lamplight image data to be displayed according to the lamplight display data; each luminous pixel point corresponds to one luminous body;
and the PWM analysis unit is used for determining the PWM driving value of each corresponding luminous body according to the brightness value of each luminous pixel point and a preset brightness value-PWM value conversion relation and sending the PWM driving value to the luminous driving module.
4. The single-point controllable lighting device according to claim 3, wherein the lighting driving module comprises a plurality of PWM dimming chips, and the driving signal is a current driving signal; the PWM dimming chip is connected with at least one luminous body; the PWM dimming chip is used for generating a corresponding current driving signal when receiving the PWM driving value so as to control the corresponding luminous body to emit light with the brightness value.
5. A single point controllable lighting device as claimed in claim 3, wherein said receiving unit is a DMX communication circuit and said light display data is DMX data.
6. A lighting system comprising a control means and a plurality of single point controllable lighting devices according to any one of claims 1 to 5 connected to the control means; and the control device is used for determining the lamplight display data corresponding to each light-emitting device when receiving a total lamplight display instruction, and sending the lamplight display data to the corresponding light-emitting device for light-emitting display.
7. The lighting system according to claim 6, wherein the total lighting display instruction comprises a combination of one or more of total lighting display data, display mode, display speed, display brightness, and display time; the control device includes:
the data communication module is used for receiving the total light display instruction;
the display data determining module is used for determining a multi-frame total display image from the total lamplight display data according to the display mode;
and the data splitting module is used for splitting each frame of the total display image into a plurality of light display data according to interface rules of the plurality of light emitting devices, and sending each light display data to the corresponding light emitting device.
8. The lighting system, as set forth in claim 7, wherein the data splitting module sends the set of lighting display data comprising a plurality of lighting display data per frame at the display speed.
9. The lighting system according to claim 6, wherein a master-slave communication mode is adopted between the plurality of lighting devices, one of the lighting devices is a master, and the rest of the lighting devices are connected to the master; the host is used for receiving all the light display data and sending the light display data to the light-emitting device for light-emitting display.
10. The lighting system, as set forth in claim 6, wherein the control device is connected in series with the plurality of lighting devices; the control device is used for sending a light display data set consisting of all the light display data to the nearest light-emitting device; except for the last light-emitting device in the series queue, each light-emitting device is used for storing the corresponding light display data for displaying when receiving the light display data set, and sending the light display data set with the stored light display data deleted to the next light-emitting device.
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