Industrial led light source programmable constant current and combined stroboscopic control system and method

Abstract

The application discloses an industrial LED light source programmable constant current and combined stroboscopic control system and method. The control system comprises a control sequence generation module, a main control module and an expansion control module. The control sequence generation module is used for providing combined stroboscopic sequence total data to the main control module. The combined stroboscopic sequence total data is composed of main control sub-data corresponding to the main control module and expansion control sub-data corresponding to the expansion control module. The application has the beneficial effect that the combined stroboscopic sequence total data is pre-edited and generated by the control sequence generation module and provided to the main control module, and the combined stroboscopic sequence total data is implemented by the main control module and the expansion control module, so that the combined stroboscopic is achieved.

Description

Technical Field

[0001] This invention relates to industrial LED light sources used in machine vision inspection, and more particularly to a programmable constant current and combined strobe control system and method for industrial LED light sources. Background Technology

[0002] In recent years, machine vision inspection technology has been developing and being applied rapidly, especially in the fields of defect detection and positioning measurement. Machine vision inspection includes the crucial task of industrial LED lighting. Currently, the industry's control methods for industrial LED light sources are increasingly unable to meet the growing and more stringent demands, creating an urgent need for a new, high-speed, and technologically advanced programmable constant current and combined flicker control system and method for industrial LED light sources. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art and provide a novel machine vision inspection method.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A programmable constant current and combined strobe control system for an industrial LED light source, comprising: a control sequence generation module, a main control module, and an extended control module; the control sequence generation module is used to provide the main control module with total combined strobe sequence data, the total combined strobe sequence data being composed of main control sub-data corresponding to the main control module and extended control sub-data corresponding to the extended control module; the main control constant current control unit is associated with an industrial LED light source, and the main control module includes: a main control processing unit and a main control constant current control unit, the main control processing unit being used to receive the total combined strobe sequence data from the control sequence generation module and to split the total combined strobe sequence data into main control sub-data corresponding to the main control module and extended control sub-data. The extended control module includes an extended control processing unit and an extended control constant current control unit. The extended control processing unit receives extended control data corresponding to the extended control module from the main control module and controls the extended control constant current control unit to operate according to the extended control data. The extended control constant current control unit is used to perform constant current control and / or switching control on the industrial LED light source associated with the extended control constant current control unit.

[0005] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the constant current control of the main control constant current control unit is determined based on the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the main control constant current control unit, thereby determining the real-time output current and / or real-time output voltage of the main control constant current control unit; wherein, the constant current control of the main control constant current control unit can use a PID algorithm.

[0006] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the main control constant current control unit includes a main control sampling resistor, which is arranged in the power supply circuit of the industrial LED light source associated with the main control constant current control unit. Using the main control sampling resistor, the main control constant current control unit can sample the real-time operating current of the industrial LED light source associated with the main control constant current control unit.

[0007] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the main control constant current control unit includes: a main control π-type filter, which is used to filter the sampling signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the main control constant current control unit.

[0008] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the constant current control of the extended control constant current control unit is determined based on the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the extended control constant current control unit, thereby determining the real-time output current and / or real-time output voltage of the extended control constant current control unit; wherein, the constant current control of the extended control constant current control unit can use a PID algorithm.

[0009] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the extended control constant current control unit includes: an extended control sampling resistor, which is arranged in the power supply circuit of the industrial LED light source associated with the extended control constant current control unit. Using the extended control sampling resistor, the extended control constant current control unit can sample the real-time operating current of the industrial LED light source associated with the extended control constant current control unit.

[0010] As a preferred embodiment of a programmable constant current and combined strobe control system for industrial LED light sources, the extended control constant current control unit includes: an extended control π-type filter, which is used to filter the sampling signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the extended control constant current control unit.

[0011] This invention discloses a programmable constant current and combined flicker control method for industrial LED light sources, comprising: Step S1: Provide a programmable constant current and combined strobe control system for the industrial LED light source; Step S2: Determine the total data of the combined strobe sequence based on the combined lighting configuration requirements of industrial LED light sources; Step S3: The control sequence generation module provides the combined strobe sequence total data to the main control module.

[0012] Step S4: The main control processing unit receives the total combined strobe sequence data from the control sequence generation module and splits the total combined strobe sequence data into main control sub-data corresponding to the main control module and extended control sub-data corresponding to the extended control module. The main control constant current control unit controls the main control constant current control unit to work according to the main control sub-data corresponding to the main control module. The main control constant current control unit performs constant current control and / or switching control on the industrial LED light source associated with the main control constant current control unit. Step S5: The extended control processing unit receives extended control sub-data corresponding to the extended control module from the main control module, and controls the extended control constant current control unit to work according to the extended control sub-data corresponding to the extended control module. The extended control constant current control unit performs constant current control and / or switching control on the industrial LED light source associated with the extended control constant current control unit.

[0013] Compared with the prior art, the beneficial effects of the present invention are at least as follows: the control sequence generation module pre-edits and generates the total data of the combined strobe sequence and provides it to the main control module; the main control module and the extended control module work together to implement the total data of the combined strobe sequence; and the constant current control module finally effectively controls the LED light source, thereby achieving the control effect of combined strobe and constant current each time the LED light source is lit. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention.

[0015] Figure 2 This is a flowchart of a method according to an embodiment of the present invention. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. It should be noted that these descriptions of embodiments are intended to aid in understanding the invention and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] Please see Figure 1 The figure shows a programmable constant current and combined strobe control system for an industrial LED light source.

[0018] The control system specifically includes: a switching power supply 1, a control sequence generation module 2, a main control module 3, and an extended control module 4. The number of extended control modules 4 is not limited to one. In this embodiment, there are three extended control modules 4.

[0019] The switching power supply 1 is used to provide power to the main control module 3, the extended control module 4, etc.

[0020] The control sequence generation module 2 is used to provide the main control module 3 with the total combined strobe sequence data. The total combined strobe sequence data consists of the main control sub-data corresponding to the main control module 3, the extended control sub-data corresponding to the extended control module 4, etc.

[0021] Preferably, the control sequence generation module 2 can be an industrial computer or other microcontrollers with communication functions.

[0022] The main control module 3 includes a main control processing unit and a main control constant current control unit 31. The number of main control constant current control units 31 is not limited to one. Each main control constant current control unit 31 is associated with an industrial LED light source. In this embodiment, there are eight main control constant current control units 31.

[0023] The main control processing unit receives the total combined strobe sequence data from the control sequence generation module 2 and splits the total combined strobe sequence data into main control sub-data corresponding to the main control module 3 and extended control sub-data corresponding to the extended control module 4. The main control processing unit controls the main control constant current control unit 31 to operate according to the main control sub-data corresponding to the main control module 3.

[0024] The main control constant current control unit 31 is used to perform constant current control and / or switching control on the industrial LED light source associated with the main control constant current control unit 31.

[0025] Preferably, the constant current control of the main control constant current control unit 31 is determined by the real-time output current and / or real-time output voltage of the industrial LED light source associated with the main control constant current control unit 31. The constant current control of the main control constant current control unit 31 may employ a PID algorithm.

[0026] Preferably, the main control constant current control unit 31 includes a main control sampling resistor. The main control sampling resistor can be a resistor with high precision. The main control sampling resistor is arranged in the power supply circuit of the industrial LED light source associated with the main control constant current control unit 31. For example, the main control sampling resistor and the industrial LED light source associated with the main control constant current control unit 31 are connected in series, that is, the main control sampling resistor and the industrial LED light source associated with the main control constant current control unit 31 have the same operating current. Using the main control sampling resistor, the main control constant current control unit 31 can sample the real-time operating current of the industrial LED light source associated with the main control constant current control unit 31.

[0027] Preferably, the main control constant current control unit 31 includes a main control π-type filter. The main control π-type filter is used to filter the sampled signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the main control constant current control unit 31.

[0028] The extended control module 4 includes an extended control processing unit and an extended control constant current control unit 41. The number of extended control constant current control units 41 is not limited to one. Each extended control constant current control unit 41 is associated with an industrial LED light source. In this embodiment, there are eight extended control constant current control units 41.

[0029] The extended control processing unit is used to receive extended control sub-data from the main control module 3 corresponding to the extended control module 4, and control the extended control constant current control unit 41 to work according to the extended control sub-data corresponding to the extended control module 4.

[0030] The extended control constant current control unit 41 is used to perform constant current control and / or switching control on the industrial LED light source associated with the extended control constant current control unit 41.

[0031] Preferably, the constant current control of the extended control constant current control unit 41 is determined by analyzing the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the extended control constant current control unit 41 to determine the real-time output current and / or real-time output voltage of the extended control constant current control unit 41. The constant current control of the extended control constant current control unit 41 may utilize a PID algorithm.

[0032] Preferably, the extended control constant current control unit 41 includes an extended control sampling resistor. The extended control sampling resistor can be a resistor with high precision. The extended control sampling resistor is arranged in the power supply circuit of the industrial LED light source associated with the extended control constant current control unit 41. For example, the extended control sampling resistor and the industrial LED light source associated with the extended control constant current control unit 41 are connected in series, meaning that the extended control sampling resistor and the industrial LED light source associated with the extended control constant current control unit 41 have the same operating current. Using the extended control sampling resistor, the extended control constant current control unit 41 can sample the real-time operating current of the industrial LED light source associated with the extended control constant current control unit 41.

[0033] Preferably, the extended control constant current control unit 41 includes an extended control π-type filter. The extended control π-type filter is used to filter the sampled signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the extended control constant current control unit 41.

[0034] Preferably, the main control module 3 further includes a main control communication unit 32. The extended control module 4 further includes an extended control communication unit 42 that communicates with the main control communication unit 32. The extended control data corresponding to the extended control module 4 enters the extended control processing unit through the main control communication unit 322 and the extended control communication unit 42.

[0035] Please see Figure 2 The figure illustrates a programmable constant current and combined flicker control method for industrial LED light sources. The control method specifically includes: Step S1: Provide an industrial LED light source for a programmable constant current and combined strobe control system.

[0036] Step S2: Determine the total data of the combined strobe sequence based on the combined lighting configuration requirements of industrial LED light sources.

[0037] Step S3: The control sequence generation module 2 provides the combined strobe sequence total data to the main control module 3.

[0038] Step S4: The main control processing unit receives the total combined strobe sequence data from the control sequence generation module 2 and splits the total combined strobe sequence data into main control sub-data corresponding to the main control module 3 and extended control sub-data corresponding to the extended control module 4. It then controls the main control constant current control unit 31 to operate according to the main control sub-data corresponding to the main control module 3. The main control constant current control unit 31 performs constant current control and / or switching control on the industrial LED light source associated with it.

[0039] Step S5: The extended control processing unit receives extended control sub-data corresponding to the extended control module 4 from the main control module 3, and controls the extended control constant current control unit 41 to operate according to the extended control sub-data corresponding to the extended control module 4. The extended control constant current control unit 41 performs constant current control and / or switching control on the industrial LED light source associated with the extended control constant current control unit 41.

[0040] The above description merely illustrates embodiments of the present invention and is quite specific and detailed; however, it should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this invention should be determined by the appended claims.

Claims

1. A programmable constant current and combined strobe control system for industrial LED light sources, used for machine vision inspection, characterized in that, include: The system comprises a control sequence generation module, a main control module, and an extended control module. The control sequence generation module provides the main control module with total combined strobe sequence data, which consists of main control sub-data corresponding to the main control module and extended control sub-data corresponding to the extended control module. The main control module includes a main control processing unit and a main control constant current control unit. The main control processing unit receives the total combined strobe sequence data from the control sequence generation module and splits it into main control sub-data corresponding to the main control module and extended control sub-data corresponding to the extended control module. The main control processing unit controls the main control constant current control unit based on the main control sub-data corresponding to the main control module. The main control constant current control unit performs constant current control and switching control on the industrial LED light source associated with it. The constant current control of the main control constant current control unit is based on the actual situation of the industrial LED light source associated with it. The main control constant current control unit determines the real-time output current and / or real-time output voltage based on the real-time operating current and / or real-time operating voltage of the main control constant current control unit; wherein, the constant current control of the main control constant current control unit uses a PID algorithm; the extended control module includes: an extended control processing unit and an extended control constant current control unit. The extended control processing unit is used to receive extended control sub-data corresponding to the extended control module from the main control module, and controls the operation of the extended control constant current control unit according to the extended control sub-data corresponding to the extended control module. The extended control constant current control unit is used to perform constant current control and switching control on the industrial LED light source associated with the extended control constant current control unit. The constant current control of the main control constant current control unit determines the real-time output current and / or real-time output voltage of the main control constant current control unit based on the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the main control constant current control unit; wherein, the constant current control of the main control constant current control unit uses a PID algorithm.

2. The industrial LED light source programmable constant current and combined strobe control system according to claim 1, characterized in that, The main control constant current control unit includes a main control sampling resistor, which is arranged in the power supply circuit of the industrial LED light source associated with the main control constant current control unit. Using the main control sampling resistor, the main control constant current control unit can sample the real-time operating current of the industrial LED light source associated with the main control constant current control unit.

3. The programmable constant current and combined strobe control system for industrial LED light sources according to claim 1, characterized in that, The main control constant current control unit includes a main control π-type filter, which is used to filter the sampling signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the main control constant current control unit.

4. The programmable constant current and combined strobe control system for industrial LED light sources according to claim 1, characterized in that, The extended control constant current control unit includes an extended control sampling resistor, which is arranged in the power supply circuit of the industrial LED light source associated with the extended control constant current control unit. Using the extended control sampling resistor, the extended control constant current control unit can sample the real-time operating current of the industrial LED light source associated with the extended control constant current control unit.

5. The programmable constant current and combined strobe control system for industrial LED light sources according to claim 1, characterized in that, The extended control constant current control unit includes an extended control π-type filter, which is used to filter the sampled signals of the real-time operating current and / or real-time operating voltage of the industrial LED light source associated with the extended control constant current control unit.

6. A method for programmable constant current and combined flicker control of an industrial LED light source, characterized in that, include: Step S1: Provide a programmable constant current and combined strobe control system for the industrial LED light source as described in any one of claims 1 to 5; Step S2: Determine the total data of the combined strobe sequence based on the combined lighting configuration requirements of industrial LED light sources; Step S3: The control sequence generation module provides the main control module with the total data of the combined strobe sequence; Step S4: The main control processing unit receives the total combined strobe sequence data from the control sequence generation module and splits the total combined strobe sequence data into main control sub-data corresponding to the main control module and extended control sub-data corresponding to the extended control module. The main control constant current control unit controls the main control constant current control unit to work according to the main control sub-data corresponding to the main control module. The main control constant current control unit performs constant current control and / or switching control on the industrial LED light source associated with the main control constant current control unit. Step S5: The extended control processing unit receives extended control sub-data corresponding to the extended control module from the main control module, and controls the extended control constant current control unit to work according to the extended control sub-data corresponding to the extended control module. The extended control constant current control unit performs constant current control and / or switching control on the industrial LED light source associated with the extended control constant current control unit.

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