KR20220072726A - Apparatus for controlling high-speed switching led lighting - Google Patents

Abstract

The present invention relates to a high-speed switching LED lighting control device, and a multi-channel LED lighting module comprising a plurality of LED light-emitting channels connected in parallel with each other, each of the plurality of LED light-emitting channels having at least one LED light-emitting device, and a user's request Setting the output level target value of each LED light emitting channel according to the user's specific input signal output according to the A user setting module that sets the clock generation for An output level control module for generating and outputting the target output voltage of each LED light emitting channel for this purpose, and an output level adjusting module in synchronization with the setting information and clock information of the output channel selection and sequence of each LED light emitting channel set by the user setting module By including a high-speed switching control module that controls the high-speed switching of each LED light-emitting channel provided in the multi-channel LED lighting module according to the target value of the output voltage of each LED light-emitting channel output from the It can effectively improve the response speed.

Description

High-speed switching LED lighting control device {APPARATUS FOR CONTROLLING HIGH-SPEED SWITCHING LED LIGHTING}

The present invention relates to a high-speed switching LED lighting control device, and more particularly, to a high-speed switching LED lighting control device capable of high-speed switching control of LED (Light Emitting Diode) lighting for a machine vision camera that is becoming high-speed. .

In general, machine vision technology is a technology in which a system of hardware and software processes the functions of human recognition and judgment, which are given to machines with human vision and judgment functions.

Using such machine vision technology, for example, surface finish inspection of products, tracking physical defects, identification of the number of objects on the conveyor, inspection of textile products, color inspection, printed circuit board (PCB) inspection, photomasks, semiconductor manufacturing, defect existence / Absence check, robot guidance, size and shape check, part omission check, correct mounting, arrangement, completeness check of microscopically minute parts, serial number reading using camera, image board, optical device, image processing software, etc. carry out

As various industrial fields are converted to automation in recent years, machine vision technology is used in almost the entire industry such as aluminum, automobile, mobile phone, logistics, pharmaceutical/medical, food and beverage, consumer goods, wood, fiber, glass, iron, casting, and chemical as well as semiconductor industry. In the production process, not only simple measurement, but also the processing of the acquired image and the judgment processor are widely used for the purpose of the user.

In addition, recent machine vision technology is developing in the direction of higher image resolution and faster shooting. In particular, in image capturing using a line scan camera, high-speed control and a large amount of light are required to photograph an object moving at a high speed.

However, there is a limit in increasing the control speed in a general microcontroller-based control method, and there is a limit in securing a large amount of light in a limited space and area.

Domestic Patent Publication No. 10-2016-0024661 (published on March 7, 2016)

The present invention has been devised to solve the above problems, and an object of the present invention is to perform high-speed control using a hardware programming-based FPGA (Field Programmable Gate Array) for a high-speed switch function, and to By adjusting the brightness of the light and the structure of the hardware switch that can turn on the light only for a short time to suit it, it supports high-speed switch and at the same time adjusts the brightness of the light as well as maintains the ON state of the light continuously at high voltage. An object of the present invention is to provide a high-speed switching LED lighting control device that can prevent damage to the LED lighting.

Another object of the present invention is to provide a high-speed switching LED lighting control device that effectively improves the light quantity and response speed of a high-speed switching LED machine vision system, and enables to freely set and control the brightness and control channel of lighting selectively according to the field situation. is to provide

In order to achieve the above object, an aspect of the present invention includes: a multi-channel LED lighting module including a plurality of LED light emitting channels connected in parallel to each other, each of the plurality of LED light emitting channels having at least one LED light emitting device; Setting the output level target value of each LED light emitting channel according to the user's specific input signal output according to the user's request, selecting the output channel of each LED light emitting channel and setting the sequence for high-speed switching control, and high-speed switching operation signal a user setting module for setting clock generation for generating ; To receive the output level target value of each LED light emitting channel set from the user setting module, and to adjust the brightness of each LED light emitting device provided in each LED light emitting channel based on this, the output voltage target value of each LED light emitting channel is generated and an output level control module to output; and the multi-channel LED according to the output voltage target value of each LED light emitting channel output from the output level control module in synchronization with the setting information and clock information of the output channel selection and order of each LED light emitting channel set from the user setting module It is to provide a high-speed switching LED lighting control device including a high-speed switching control module for controlling the high-speed switching of each LED light-emitting channel provided in the lighting module.

Here, it is preferable that the user setting module outputs a specific input signal of the corresponding user according to the user's request based on a graphical user interface (GUI).

Preferably, the high-speed switching control module can perform high-speed control by using a hardware programming-based FPGA (Field Programmable Gate Array) for the high-speed switching function.

Preferably, the high-speed switching control module detects an idle period of a photographing operation for a machine vision camera module installed near the multi-channel LED lighting module, and sets the photographing operation signal of the machine vision camera module to a preset photographing operation standard An automatic reset function may be performed to determine an idle state when no input is received for more than a period of time, remove the state during the photographing operation to maintain the initial state after the determined idle state, and initialize the state to the initial input state.

Preferably, the machine vision camera module is installed to be vertically spaced apart from the moving direction of the subject, so that each light output from each LED light emitting channel provided in the multi-channel LED lighting module is sequentially directed to the subject. It may include at least one line scan camera that acquires an image having a two-dimensional image by scanning the image of the upper surface of the subject in line unit in the irradiated state.

Preferably, at least one of a set value for an output level target of each LED light emitting channel set from the user setting module, a set value for output channel selection and order of each LED light emitting channel, and a set value for clock generation A storage module for storing setting values may be further included.

Preferably, the user's specific input signal output according to the user's request may be provided through an external user terminal.

Preferably, the external user terminal, according to the user's request through a pre-installed user setting related application for high-speed switching LED lighting control, wired or wired or It can be transmitted wirelessly to the user setting module.

Preferably, the multi-channel LED lighting module includes a first LED light-emitting channel for irradiating light to the first surface and upper surface of the subject, and a second LED light-emitting channel for irradiating light to the second surface and upper surface of the subject. It may include a channel, a third LED light emitting channel for irradiating light to the third surface and upper surface of the subject, and a fourth LED light emitting channel for irradiating light to the fourth surface and upper surface of the subject.

Preferably, the high-speed switching control module is configured to change the high-speed switching operation signal for each LED light-emitting channel in order to protect each LED light-emitting device from being damaged due to continuous turning on of each LED light-emitting device provided in each LED light-emitting channel. Each LED light emitting channel can be controlled to perform high-speed switching operation only for a certain operation reference time less than the preset operation reference time.

According to the high-speed switching LED lighting control apparatus of the present invention as described above, high-speed control is performed using a hardware programming-based FPGA (Field Programmable Gate Array) for the high-speed switch function, and a short By controlling the brightness of the light and the hardware switch structure that can turn on the light only at a time, it supports high-speed switch and at the same time adjusts the brightness of the light, as well as the LED by maintaining the ON state of the light continuously at high voltage. There is an advantage in that it is possible to prevent damage to the lighting.

In addition, according to the present invention, it is possible to effectively improve the light quantity and response speed of the high-speed switching LED machine vision system, and there is an advantage that the brightness and control channel of the lighting can be freely set and controlled according to the field situation.

In addition, according to the present invention, the light emission channel selection function allows the machine vision user to freely select the light emission channel for one pulse input according to the environment used, and even if the shooting situation changes in the machine vision field, the protocol It has the advantage of being able to control the lighting just by setting it.

In addition, according to the present invention, there is an advantage that can provide independent operation with a function of generating an operation signal inside the high-speed switching control module when there is no external signal input to ensure the independent operation of the high-speed switching control.

In addition, according to the present invention, in case the start of the page does not match due to noise during operation in the industrial field, when the operation signal is not input for more than a certain time, the operation state is removed and the initial input state is automatically reset to the initial input state. By performing a reset function, there is an advantage in that the phenomenon of continuously moving an image can be eliminated.

1 is an overall block diagram for explaining a high-speed switching LED lighting control device according to an embodiment of the present invention.
2 is a perspective view illustrating an arrangement state of a multi-channel LED lighting module applied to an embodiment of the present invention as an example.
3 is a detailed block diagram illustrating a user terminal applied to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

In the entire specification, when a part "includes" a certain element, this means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art.

Each block in the accompanying block diagram and combinations of steps in the flowchart may be executed by computer program instructions (execution engine), which may be executed by a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment. It may be mounted so that the instructions, which are executed by the processor of a computer or other programmable data processing equipment, create means for performing the functions described in each block of the block diagram or in each step of the flowchart. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. It is also possible to produce an article of manufacture containing instruction means for performing the functions described in each block of the block diagram or each step of the flowchart, the instructions stored in the block diagram.

And, since the computer program instructions may be mounted on a computer or other programmable data processing equipment, a series of operating steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other program It is also possible that instructions for performing the possible data processing equipment provide steps for carrying out the functions described in each block of the block diagram and in each step of the flowchart.

In addition, each block or step may represent a module, segment, or portion of code comprising one or more executable instructions for executing specified logical functions, and in some alternative embodiments the blocks or steps referred to in some alternative embodiments. It should be noted that it is also possible for functions to occur out of sequence. For example, it is possible that two blocks or steps shown one after another may be performed substantially simultaneously, and also the blocks or steps may be performed in the reverse order of the corresponding functions, if necessary.

Figure 1 is an overall block diagram for explaining a high-speed switching LED lighting control device according to an embodiment of the present invention, Figure 2 is an example showing the arrangement state of the multi-channel LED lighting module applied to an embodiment of the present invention It is a perspective view, and FIG. 3 is a detailed block diagram illustrating a user terminal applied to an embodiment of the present invention.

1 to 3, the high-speed switching LED lighting control device according to an embodiment of the present invention is largely a multi-channel LED lighting module 100, a user setting module 200, an output level control module 300, It comprises a high-speed switching control module 400, a power supply module 500, and the like. In addition, the high-speed switching LED lighting control device according to an embodiment of the present invention may further include a storage module 600, the user terminal (20). On the other hand, since the components shown in FIGS. 1 to 3 are not essential, the high-speed switching LED lighting control device according to an embodiment of the present invention may have more or fewer components than that.

Hereinafter, the components of the high-speed switching LED lighting control apparatus according to an embodiment of the present invention will be described in detail as follows.

The multi-channel LED lighting module 100 includes a plurality of LED light-emitting channels (CH1 to CHn) connected in parallel to each other, and each of the plurality of LED light-emitting channels (CH1 to CHn) is at least one LED light-emitting device (LED1 to CHn). LEDn) is included.

In addition, when there are two or more LED light emitting devices (LED1 to LEDn) provided in each LED light emitting channel (CH1 to CHn) forming the multi-channel LED lighting module 100, each LED light emitting device (LED1 to LEDn) is an array may be connected in series and/or in parallel.

That is, the multi-channel LED lighting module 100 may receive the operating voltage output from the high-speed switching control module 400 to operate each LED light emitting device (LED1 to LEDn) of each LED light emitting channel (CH1 to CHn). . In this case, the operating voltage may be applied to the anode of the first LED light emitting device LED1 , and the cathode of the first LED light emitting device LED1 may be connected to the anode of the second LED light emitting device LED2 .

In addition, each LED light emitting device (LED1 to LEDn) provided in each LED light emitting channel (CH1 to CHn) of the multi-channel LED lighting module 100 is, for example, a light emitting diode (Red LED) having a red color, green Light emitting diode (Green LED) having (Green Color), light emitting diode (Blue LED) having blue (Blue Color), light emitting diode (Amber LED) having yellow (Amber Color), the color temperature of the light source in the range of about 2000K to 3500K Implemented as at least one light emitting diode (Light Emitting Diode, LED) of a warm white light emitting diode (LED) with It is preferable to be

In addition, when the multi-channel LED lighting module 100 is applied to a high-speed switching LED machine vision system, as shown in FIG. 2 , the multi-channel LED lighting module 100 is installed on the upper side of the subject 1, and a plurality of As a bar performing a function of irradiating light to the surfaces (eg, first to fourth surfaces, etc.) and the upper surface of a first LED light emitting channel CH1, a second LED light emitting channel CH2 for irradiating light on the second surface (eg, right side) and upper surface of the subject 1, and the subject 1 A third LED light emitting channel (CH3) irradiating light to the third surface (eg, front) and upper surface of the, and the fourth surface (eg, rear) and upper surface of the subject 1 A fourth LED light emitting channel (CH4) may be provided.

In addition, although the first to fourth LED light emitting channels CH1 to CH4 of the multi-channel LED lighting module 100 are not shown in the drawing, 4 of the corresponding subject 1 through a separate jig or support stand It is preferable that the light is irradiated to the side surfaces and the upper surface of the dog by being spaced apart from each other by a certain distance and inclined at a certain angle to the upper portion of each side of the subject 1 .

Each of the LED light emitting channels (CH1 to CHn) of the multi-channel LED lighting module 100 is preferably made in the form of an array of a plurality of LEDs (Light Emitting Diodes) so as to irradiate surface light to the subject 1, The present invention is not limited thereto, and may include, for example, at least one of a fluorescent lamp, an incandescent lamp, a halogen lamp, a mercury lamp, a neon tube lamp, a sodium lamp, a metal halide lamp, and an EL (Electro-Luminescent) lamp.

In addition, the first to fourth LED light emitting channels (CH1 to CH4) of the multi-channel LED lighting module 100 are, for example, a liquid crystal display (LCD), a light emitting diode display (Light Emitting Diode, LED), a thin film transistor Liquid Crystal Display (Thin Film Transistor-Liquid Crystal Display, TFT LCD), Organic Light Emitting Diode (OLED), Flexible Display (Flexible Display), Plasma Display Panel (PDP), Surface Alternate Lighting ( ALiS), Digital Light Source Processing (DLP), Silicon Liquid Crystal (LCoS), Surface Conduction Electron Emission Device Display (SED), Field Emission Display (FED), Laser TV (Quantum Dot Laser, Liquid Crystal Laser), Optoelectric Liquid Display ( FLD), interferometric modulator display (iMoD), thick film dielectric electrical (TDEL), quantum dot display (QD-LED), telescopic pixel display (TPD), organic light emitting transistor (OLET), and/or laser fluorescence display (LPD). At least one may be included, and the present invention is not limited thereto, and any object capable of irradiating surface light to the subject 1 may be included.

On the other hand, the subject 1 is preferably made of a polyhedral article having a plurality of faces. For example, although the test object 1 in one embodiment of the present invention is applied as a battery (Battery) in the form of a flat cuboid, it is not limited thereto, and a plurality of surfaces (eg, left side, right side, front side, rear side, flat surface, Any object (or article) in the form of a polyhedron having a bottom surface, etc.) is applicable.

The user setting module 200 sets the output level target value of each LED light emitting channel (CH1 to CHn) by a user's specific input signal output according to the user's request, and each LED light emitting channel (CH1 to CHn) for high-speed switching control. CHn) performs a function of selecting an output channel and setting an order, and setting a clock generation for generating a high-speed switching operation signal.

In addition, the user setting module 200 preferably outputs a specific input signal of the user according to the user's request based on a graphic user interface (GUI), for example, through a separate display screen and a switch input. do.

The output level control module 300 receives the output level target value of each LED light emitting channel (CH1 to CHn) set from the user setting module 200 and based on this, each LED provided in each LED light emitting channel (CH1 to CHn) In order to control the brightness of the light emitting devices (LED1 to LEDn), it performs a function of generating and outputting a target output voltage value of each LED light emitting channel (CH1 to CHn).

The high-speed switching control module 400 outputs from the output level control module 300 in synchronization with the setting information and clock information of the output channel selection and order of each LED light emitting channel (CH1 to CHn) set from the user setting module 200 . It performs a function of controlling the high-speed switching of each LED light emitting channel (CH1 to CHn) provided in the multi-channel LED lighting module 100 according to the output voltage target value of each LED light emitting channel (CH1 to CHn).

In addition, it is preferable that the high-speed switching control module 400 performs high-speed control using a hardware programming-based FPGA (Field Programmable Gate Array) for the high-speed switching function.

In addition, the high-speed switching control module 400 protects the damage of each LED light emitting device (LED1 to LEDn) due to the continuous turning on of each LED light emitting device (LED1 to LEDn) provided in each LED light emitting channel (CH1 to CHn) In order to do this, when the high-speed switching operation signal for each LED light emitting channel (CH1 to CHn) is changed, each LED light emitting channel (CH1 to CHn) is activated only for a certain operation reference time less than the preset operation reference time (preferably, about 1 ms). It is possible to perform a function of controlling the high-speed switching operation.

That is, the high-speed switching control module 400 applies a plurality of semiconductor elements (eg, a buffer, a resistor, a capacitor, etc.) for a predetermined time of about 1 ms or less at the moment the operation signal is changed. It may be provided to protect the light from being continuously turned on due to the user's negligence. At this time, among the plurality of semiconductor devices, the capacitor preferably serves to prevent the input of the operation signal from being maintained, and the resistor serves to maintain the operation signal in the low state. Preferably, the maximum pulse input time of hardware can be determined by adjusting the values of the capacitor and the resistor.

In addition, the high-speed switching control module 400 detects the idle period of the shooting operation for the machine vision camera module 30 installed in the vicinity of the multi-channel LED lighting module (CH1 to CHn), the corresponding machine vision camera module (30) The state during the shooting operation is removed to maintain the initial state after the determined idle state is determined as an idle state when the shooting operation signal of An automatic reset function to initialize can be performed.

At this time, as shown in FIG. 2 , the machine vision camera module 30 is installed vertically spaced apart from the moving direction of the subject 1 by a certain distance, and the first provided in the multi-channel LED lighting module 100 is Scan the image of the upper surface of the subject 1 by line in a state in which each light output from the to fourth LED light emitting channels CH1 to CH4 is sequentially irradiated to the subject 1 ) to preferably include at least one line scan camera that acquires an image having a two-dimensional image.

In addition, the machine vision camera module 30 corresponds to a state in which any one of the first to fourth LED light emitting channels (CH1 to CH4) provided in the multi-channel LED lighting module 100 is irradiated with light in the corresponding order. An imaging surface of the subject 1 is photographed, and a line-scan image of the photographed subject 1 is transmitted.

This machine vision camera module 30 does not acquire an image in units of areas, but through a single line, that is, a one-dimensional linear structure CMOS (Complementary Metal Oxide Semiconductor) or CCD (Charge Coupled Device) image sensor. As a camera module of a method of acquiring a two-dimensional image by scanning in line units, in order to generate an image of the subject 1 by the machine vision camera module 30, the machine vision camera module 30 or the The subject 1 is moved at a constant speed, and the entire image of the subject 1 is generated as an image by combining images taken of a portion of the subject 1 at the moment of movement.

That is, in the case of a machine vision system that applies the first to fourth LED light emitting channels (CH1 to CH4) and the machine vision camera module 30 that are illuminated on four sides to photograph the subject 1, which is an object being transported, As shown in FIG. 2, when the moving subject 1 is photographed sequentially while the lighting is controlled and line images taken when the lighting of the same location is turned on, the effect of obtaining an image photographed from four sides in a still state to get

Since such an image capture can be taken during transport without stopping the object to be photographed, there is no additional process in the production site and image capture and reading can be performed during transport, so the effect of improving the production yield is very large.

The above-described high-speed switching control module 400 generates a pulse width modulation (PWM) control signal according to the output voltage target value of each LED light emitting channel (CH1 to CHn) output from the output level control module 300 . and high-speed switching control for controlling on/off high-speed switching operations of a plurality of driving switches (eg, high-current semiconductors such as FETs or IGBTs) according to the generated pulse width modulation (PWM) control signal By outputting the signal, it is possible to perform a function of high-speed control of the output current supplied to each LED light emitting device (LED1 to LEDn) provided in each LED light emitting channel (CH1 to CHn) by minimizing the delay in response speed.

At this time, in relation to high-speed control, in one embodiment of the present invention, the case of a machine vision system that uses four-sided illumination and applies a line scan camera to photograph a moving object has been described as an example, but this To help, only one application case is given as an example, and the range of high-speed video shooting is not limited by the type of lighting, the number of channels, etc., and can be freely set by the software setting.

On the other hand, in the case of each LED light emitting device (LED1 to LEDn) provided in each LED light emitting channel (CH1 to CHn), a large amount of current can flow by applying a large power in the form of a pulse in a short time, and instantaneously When a large amount of current flows, the brightness of each of the LED light emitting devices (LED1 to LEDn) also has an effect of increasing as much as the current flowing rate.

And, as a method for supplying a large current to each LED light emitting device (LED1 to LEDn), a charging capacitor is provided on the output side, and the output voltage of the DC-DC converter is changed by setting control of the user setting module 200 . A high-voltage circuit capable of supplying sufficient current to each LED light emitting device (LED1 to LEDn) can be configured to configure a high-current circuit. This method can be used as a function to supply sufficient current to the output side or to adjust the brightness as needed.

And, the power supply module 500 is each of the above-described modules, that is, the multi-channel LED lighting module 100, the user setting module 200, the output level control module 300, the high-speed switching control module 400, and / Alternatively, the bar performs a function of supplying power required for the operation of the storage module 600, etc., and converts commercial alternating current (AC) power (eg, AC 220V or 380V, etc.) to direct current (DC) and/or for continuous power supply. It is preferably implemented to be converted into alternating current (AC) power, but is not limited thereto, and may be implemented including a conventional portable battery (Battery).

In addition, the power supply module 500 may include a power management unit (not shown) that protects components from external power shock and outputs a constant voltage. The power management unit may include an ESD (Electro Static Damage) protector, a power detector, a rectifier, and a power breaker.

Here, the ESD protector is configured to protect electronic components from static electricity or sudden power shock. The power detector is configured to send a cutoff signal to the power breaker when a voltage outside the allowable voltage range is introduced, and to transmit a step-up or step-down signal to the rectifier according to a voltage change within the allowable voltage range. The rectifier is configured to perform a step-up or step-down rectification operation according to a signal from the power sensor so that a constant voltage is supplied by minimizing the fluctuation of the input voltage. The power breaker is configured to cut off the power supplied from the battery according to the cut-off signal transmitted from the power sensor.

In addition, the storage module 600 is a set value for the output level target of each LED light emitting channel (CH1 to CHn) set from the user setting module 200, the output channel selection and order of each LED light emitting channel (CH1 to CHn) It performs a function of storing at least one set value among set values and/or set values for clock generation.

The storage module 600 is, for example, a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (eg SD or XD memory). etc.), Random Access Memory (RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), It may include a readable storage medium of at least one type of a magnetic memory, a magnetic disk, and an optical disk.

In addition, the user terminal 20 may perform a function of transmitting a specific input signal of the corresponding user output according to the user's request to the user setting module 200 .

That is, the user terminal 20 transmits a specific input signal of the corresponding user for user setting of the high-speed switching LED lighting control according to the user's request through the pre-installed user setting related application for the high-speed switching LED lighting control. It can be transmitted to the user setting module 200 by wire and/or wireless through (10).

At this time, the communication network 10 is a communication network that is a high-speed backbone network of a large-scale communication network capable of large-capacity, long-distance voice and data services, and includes Wi-Fi, WiGig, It may be a next-generation wireless communication network including WiBro (Wireless Broadband Internet, Wibro) and Wimax (World Interoperability for Microwave Access, Wimax).

The Internet includes the TCP/IP protocol and various services existing in its upper layers, namely HTTP (Hyper Text Transfer Protocol), Telnet, FTP (File Transfer Protocol), DNS (Domain Name System), SMTP (Simple Mail Transfer Protocol), It means a worldwide open computer network structure that provides SNMP (Simple Network Management Protocol), NFS (Network File Service), NIS (Network Information Service), etc., and the user terminal 20 is connected to the user setting module 200. provide an environment that enables Meanwhile, the Internet may be a wired or wireless Internet, or may be a core network integrated with a wired public network, a wireless mobile communication network, or a portable Internet.

If the communication network 10 is a mobile communication network, it may be a synchronous mobile communication network or an asynchronous mobile communication network. As an example of the asynchronous mobile communication network, a wideband code division multiple access (WCDMA) type communication network may be used. In this case, although not shown in the drawings, the mobile communication network may include, for example, a Radio Network Controller (RNC). Meanwhile, although the WCDMA network is taken as an example, it may be a next-generation communication network such as a cellular-based 3G network, an LTE network, a 4G network, or a 5G network, and other IP-based IP networks. The communication network 10 serves to mutually transmit signals and data between the user terminal 20 and the user setting module 200 .

On the other hand, the communication network 10, for example, Bluetooth (Bluetooth), ZigBee (ZigBee), Beacon (Beacon), UWB (Ultra Wideband), RFID (Radio Frequency Identification), and / or at least one short-range of infrared (IR) communication A communication method may also be used.

The external user terminal 20 is preferably made of at least one mobile terminal device of a smart phone, a smart pad, or a smart note that communicates through the wireless Internet or the portable Internet, In addition to , personal PCs, notebook PCs, Palm PCs, mobile game consoles (mobile play-stations), DMB (Digital Multimedia Broadcasting) phones with communication functions, tablet PCs, iPads, etc. Alternatively, it may comprehensively mean all wired and wireless home appliances/communication devices having a user interface for accessing the user setting module 200 .

That is, the user terminal 20, as shown in Figure 3, the wireless communication module 21, A / V (Audio / Video) input module 22, the user input module 23, the sensing module 24, It may include an output module 25 , a storage module 26 , an interface module 27 , a terminal control module 28 , and a power supply module 29 . Meanwhile, since the components shown in FIG. 3 are not essential, the user terminal 20 may have more components or fewer components.

Hereinafter, the components of the user terminal 20 will be described in detail as follows.

The wireless communication module 21 may include one or more modules that enable wireless communication between the user terminal 20 and the user setting module 200 . For example, the wireless communication module 21 may include a broadcast reception module 21a, a mobile communication module 21b, a wireless Internet module 21c, a short-range communication module 21d, and a location information module 21e.

The broadcast reception module 21a transmits a broadcast signal (for example, a TV broadcast signal, a radio broadcast signal, a data broadcast signal, etc.) and/or broadcast from an external broadcast management server through various broadcast channels (eg, a satellite channel, a terrestrial channel, etc.) Receive relevant information.

The mobile communication module 21b transmits/receives wireless signals to and from at least one of a base station, a user terminal 20, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text/multimedia message.

The wireless Internet module 21c is a module for wireless Internet access, and may be built-in or external to the user terminal 20 . As the wireless Internet technology, for example, WLAN (Wi-Fi), Wibro, Wimax, HSDPA, LTE, etc. may be used.

The short-range communication module 21d is a module for short-range communication, for example, Bluetooth communication, ZigBee communication, UWB (Ultra Wideband) communication, RFID (Radio Frequency Identification) communication, or infrared (IR) communication. can be used

The location information module 21e is a module for confirming or obtaining the location of the user terminal 20 , and may obtain current location information of the user terminal 20 using a global positioning system (GPS) or the like.

On the other hand, according to the control of the terminal control module 28, the user setting module 200 using a specific application program stored in the storage module 26 through the aforementioned wireless communication module 21 and/or a wired communication module (not shown). ) and data transmission and reception.

The A/V input module 22 is a module for inputting an audio signal or a video signal, and may basically include a camera unit 22a, a microphone unit 22b, and the like. The camera unit 22a processes an image frame such as a still image or a moving image obtained by an image sensor in a video call mode or a photographing mode. The microphone unit 22b receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, and the like, and processes it as electrical voice data.

The user input module 23 is a module for generating input data for operation control of the user terminal 20 , and in particular, for any one of data management information displayed through the display unit 25a of the output module 25 . Performs a function of inputting a selection signal, for example, by using a touch panel (static pressure/electrostatic) type input by the user's touch or a separate input device (eg, keypad dome switch, jog wheel, jog switch, etc.) can be entered.

The sensing module 24 includes the opening/closing state of the user terminal 20 , the location of the user terminal 20 , the presence or absence of user contact, the user's touch action on a specific part, the orientation of the user terminal 20 , and the A sensing signal for controlling the operation of the user terminal 20 is generated by detecting the current state of the user terminal 20 such as acceleration/deceleration. This sensing signal may be transmitted to the terminal control module 28, and may become a basis for the terminal control module 28 to perform a specific function.

The output module 25 is a module for generating an output related to visual, auditory or tactile sense, and basically includes a display unit 25a, a sound output unit 25b, an alarm unit 25c, and a haptic unit 25d. can

The display unit 25a is for displaying and outputting information processed by the user terminal 20. For example, when the user terminal 20 is in a call mode, a user interface (UI) or a graphical user interface (GUI) related to a call is displayed. and, in the case of a video call mode or a shooting mode, a captured and/or received image, UI, or GUI is displayed.

The sound output unit 25b may output audio data received from the wireless communication module 21 or stored in the storage module 26 in, for example, call signal reception, call mode or recording mode, voice recognition mode, broadcast reception mode, etc. .

The alarm unit 25c may output a signal for notifying the occurrence of an event in the user terminal 20 . Examples of events generated in the user terminal 20 include call signal reception, message reception, key signal input, touch input, and the like.

The haptic unit 25d generates various tactile effects that the user can feel. A representative example of the tactile effect generated by the haptic unit 25d is vibration. The intensity and pattern of vibration generated by the haptic unit 25d are controllable.

The storage module 26 may store a program for the operation of the terminal control module 28 and may temporarily store input/output data (eg, phonebook, message, still image, video, etc.).

In addition, the storage module 26 may store data related to vibration and sound of various patterns output when a touch input on the touch screen is input, and may store a user setting related application program for controlling high-speed switching LED lighting.

In addition, the storage module 26 may store source data for the formation of user setting related information for high-speed switching LED lighting control, and user setting related data for high-speed switching LED lighting control is composed of images and sounds. can be made, and the process and result of generating related data for user setting for high-speed switching LED lighting control can also be stored.

The storage module 26 is a flash memory type, hard disk type, multimedia card micro type, card type memory (eg, SD or XD memory, etc.), RAM (RAM), SRAM, ROM (ROM), EEPROM, PROM , a magnetic memory, a magnetic disk, and an optical disk may include at least one type of storage medium.

The interface module 27 serves as a passage with all external devices connected to the user terminal 20 . The interface module 27 receives data from an external device or receives power and transmits it to each component inside the user terminal 20 or transmits data inside the user terminal 20 to an external device.

The terminal control module 28 generally controls the overall operation of the user terminal 20, and performs related control and processing for, for example, voice call, data communication, video call, and execution of various applications.

That is, the terminal control module 28 controls the user setting related application program for high-speed switching LED lighting control stored in the storage module 26 to be executed, and executes the user setting related application program for the high-speed switching LED lighting control. Through this, it performs a control function to request generation of user setting related data for high-speed switching LED lighting control and to receive user setting related data for high-speed switching LED lighting control.

In addition, the terminal control module 28 is a video, audio or sound in the process of generating user setting related data for controlling the high-speed switching LED lighting desired by the user through the execution of the user setting related application program for the high-speed switching LED lighting control. A function of controlling the auxiliary elements including at least one to be output through at least one of the display unit 25a and other output devices (eg, the sound output unit 25b, the alarm unit 25c, the haptic unit 25d, etc.) carry out

Also, the terminal control module 28 may constantly monitor the charging current and the charging voltage of the battery unit 29a and temporarily store the monitoring values in the storage module 26 . In this case, the storage module 26 preferably stores battery specification information (product code, rating, etc.) as well as battery charge state information such as monitored charging current and charging voltage.

The power module 29 receives external power and internal power under the control of the terminal control module 28 to supply power necessary for the operation of each component. The power module 29 supplies power from the built-in battery unit 29a to each component to operate, and the battery can be charged using a charging terminal (not shown).

Various embodiments described herein may be implemented in a computer-readable recording medium using, for example, software, hardware, or a combination thereof.

According to the hardware implementation, the embodiments described herein are ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays) , processors, controllers, micro-controllers, microprocessors, and may be implemented using at least one of an electrical unit for performing a function. In some cases, such embodiments may be implemented by the terminal control module 28 .

According to the software implementation, embodiments such as a procedure or function may be implemented together with a separate software module for performing at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software code may be stored in the storage module 26 and executed by the terminal control module 28 .

If the user terminal 20 is made of a smart phone, the smart phone is different from a general mobile phone (aka feature phone), it is possible to download various application programs desired by the user, use it freely, and delete it. As a phone based on an open operating system, not only commonly used functions such as voice/video calls and internet data communication, but also all mobile phones with mobile office functions or all internet phones that do not have voice calls but can access the internet Or it is preferable to understand it as a communication device including a tablet PC (Tablet PC).

As described above, since a smartphone uses an open operating system, a user can install and manage various application programs arbitrarily, unlike a mobile phone with a closed operating system.

Although a preferred embodiment of the high-speed switching LED lighting control device according to the present invention has been described above, the present invention is not limited thereto, and various modifications are made within the scope of the claims, the detailed description of the invention, and the accompanying drawings. It is possible to practice and also belongs to the present invention.

100: multi-channel LED lighting module,
200: user setting module,
300: output level control module,
400: high-speed switching control module,
500: power supply module,
600: storage module

Claims (10)

a multi-channel LED lighting module comprising a plurality of LED light-emitting channels connected in parallel to each other, each of the plurality of LED light-emitting channels having at least one LED light-emitting device;
Setting the output level target value of each LED light emitting channel according to the user's specific input signal output according to the user's request, selecting the output channel and setting the order of each LED light emitting channel for high-speed switching control, and high-speed switching operation signal a user setting module for setting clock generation for generating ;
To receive the output level target value of each LED light emitting channel set from the user setting module and to adjust the brightness of each LED light emitting device provided in each LED light emitting channel based on this, the output voltage target value of each LED light emitting channel is generated and an output level control module to output; and
The multi-channel LED lighting according to the output voltage target value of each LED light-emitting channel output from the output level control module in synchronization with the setting information and clock information of the output channel selection and sequence of each LED light-emitting channel set from the user setting module A high-speed switching LED lighting control device comprising a high-speed switching control module for controlling high-speed switching of each LED light-emitting channel provided in the module.
According to claim 1,
The user setting module, a graphical user interface (Graphical User Interface, GUI) based on the user's request according to the user's specific input signal, characterized in that for outputting a high-speed switching LED lighting control device.
According to claim 1,
The high-speed switching control module, a high-speed switching LED lighting control device, characterized in that performing high-speed control using a hardware programming-based FPGA (Field Programmable Gate Array) for the high-speed switching function.
According to claim 1,
The high-speed switching control module detects an idle period of a photographing operation for a machine vision camera module installed near the multi-channel LED lighting module, and inputs a photographing operation signal of the machine vision camera module longer than a preset photographing operation reference time High-speed switching, characterized in that when it is not determined as an idle state, an automatic reset function is performed to remove the state during the shooting operation and initialize to the initial input state so as to maintain the first state after the determined idle state LED lighting control.
5. The method of claim 4,
The machine vision camera module is installed vertically spaced apart from the moving direction of the subject, and each light output from each LED light emitting channel provided in the multi-channel LED lighting module is sequentially irradiated to the subject. High-speed switching LED lighting control device, characterized in that it comprises at least one line scan camera for acquiring an image with a two-dimensional image by scanning the upper surface image of the subject in line unit.
According to claim 1,
At least one set value of the set value for the output level target of each LED light emitting channel set from the user setting module, the set value of the output channel selection and order of each LED light emitting channel, and the set value for clock generation High-speed switching LED lighting control device, characterized in that it further comprises a storage module to store.
According to claim 1,
A high-speed switching LED lighting control device, characterized in that the user's specific input signal output according to the user's request is provided through an external user terminal.
8. The method of claim 7,
The external user terminal transmits a specific input signal of the user for user setting of the high-speed switching LED lighting control according to the user's request through a pre-installed user setting related application for controlling the high-speed switching LED lighting by wire or wirelessly. High-speed switching LED lighting control device, characterized in that it is transmitted to the user setting module.
According to claim 1,
The multi-channel LED lighting module includes a first LED light emitting channel for irradiating light to the first surface and upper surface of the subject, a second LED light emitting channel for irradiating light to the second surface and upper surface of the subject, the corresponding High-speed switching comprising a third LED light-emitting channel for irradiating light to a third surface and upper surface of the subject, and a fourth LED light-emitting channel for irradiating light to the fourth surface and upper surface of the subject LED lighting control.
According to claim 1,
The high-speed switching control module, in order to protect each LED light-emitting device from damage due to the continuous turning on of each LED light-emitting device provided in each LED light-emitting channel, is preset when the high-speed switching operation signal for each LED light-emitting channel is changed. A high-speed switching LED lighting control device, characterized in that the high-speed switching operation of each LED light-emitting channel is controlled only for a certain operation reference time less than the operation reference time.

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