Light-emitting control module, light-emitting device and light source equipment

Abstract

The embodiment of the utility model provides a light-emitting control module, a light-emitting device and light source equipment. The light-emitting control module is provided with a first interface and is detachably and electrically connected with the light-emitting device through the first interface, the light-emitting control module comprises a control circuit, and a main control module is arranged in the control circuit. The main control module is provided with an IO output port, and the IO output port is used for injecting control signals into a row control signal input port and a column control signal input port of a light-emitting unit array in the light-emitting device. And the main control module is used for interacting with the light source controller, decomposing the light source configuration pattern issued by the light source controller, and outputting a corresponding IO control signal through the IO output port so as to independently control the light emitting unit array in each row and each column. By applying the light-emitting control module, the light-emitting device and the light source equipment provided by the utility model, the development difficulty and resources required to be input when light source equipment with different light-emitting surface sizes is developed can be reduced, and the flexibility of field use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine vision technical field especially is related to light emitting control module, light emitting device and light source equipment. BACKGROUND

[0002] In the field of machine vision, 2.5D light source (program-controlled stripe light source) is mainly applied in defect detection system, and 2.5D light source can produce stripe pattern light to the light of measured object, and then the stripe image reflected by the surface of measured object is captured by camera, and the position of uneven area on the surface of measured object can be calculated by demodulating the stripe image.

[0003] Because the size of measured object is inconsistent under different application scenarios, and the light source equipment for lighting the measured object needs to cover the measured object completely, different sizes of 2.5D light source need to be designed for different sizes of measured object. And according to different actual detection requirements, 2.5D light source needs to emit light of arbitrary stripe pattern, which requires that each row and each column of LED (light-emitting diode) array of 2.5D light source can be controlled individually, so the circuit design inside 2.5D light source is usually complex. If a corresponding model of 2.5D light source is designed for each different size of measured object, the development difficulty is large, and more resources need to be invested. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of light emitting control module, light emitting device and light source equipment, to reduce the development difficulty and the resources needed when developing light source equipment with different light emitting surface size.Specific technical solutions are as follows:

[0005] Firstly, the utility model provides a kind of light emitting control module, with first interface, the first interface is used to be detachably electrically connected with light emitting device;

[0006] The light emitting control module includes control circuit, and the control circuit is provided with N IO output ports in the first interface, and the IO output port is used to inject control signal to row control signal input port and column control signal input port of light emitting unit array in the light emitting device, to control the row and column of light emitting unit array;Wherein, N is not less than the sum of the number of row control signal input port and column control signal input port of the light emitting device.

[0007] Optionally, the control circuit comprises a master module, and a port expansion device is connected to part of output ports of the master module, and the N IO output ports comprise the remaining output ports of the master module and output ports of the port expansion device; or all output ports of the master module are connected with port expansion devices, and the N IO output ports comprise output ports of the port expansion devices.

[0008] Optionally, the port expansion device comprises at least one of a decoder, a CPLD and a FPGA; an input port of the decoder is connected with an output port of the master module, and an output port of the decoder serves as an IO output port of the control circuit; an input port of the CPLD is connected with an input port of the master module, and an output port of the CPLD serves as an IO output port of the control circuit; and an input port of the FPGA is connected with an input port of the master module, and an output port of the FPGA serves as an IO output port of the control circuit.

[0009] Optionally, the control circuit comprises a plurality of parallel master modules, and the plurality of master modules respectively provide part of the N IO output ports.

[0010] Optionally, the control circuit comprises a plurality of cascaded master modules, and the plurality of master modules respectively provide part of the N IO output ports.

[0011] Optionally, the light-emitting control module comprises a plurality of parallel control circuits, each of the control circuits comprises one or more master modules, and the master modules in the plurality of control circuits respectively provide part of the N IO output ports.

[0012] Optionally, the light-emitting control module comprises a plurality of cascaded control circuits, each of the control circuits comprises one or more master modules, and the master modules in the plurality of control circuits respectively provide part of the N IO output ports.

[0013] In a second aspect, the utility model provides a kind of light-emitting device, with second interface, the second interface is used to be detachably electrically connected with light-emitting control module;

[0014] The light-emitting device comprises a light-emitting unit array, and the light-emitting unit array is provided with X row control signal input ports and Y column control signal input ports at the second interface, and the row control signal input ports and the column control signal input ports are used to receive control signals from the IO output ports of the light-emitting control module, so that the light-emitting unit array emits light under the driving of the control signals;Wherein, X+Y is not greater than the number of IO output ports of the light-emitting control module.

[0015] In a third aspect, the utility model provides a kind of light source equipment, including light emitting control module and light emitting device, the light emitting control module has first interface, the light emitting device has second interface, the light emitting control module is detachably electrically connected with the second interface of the light emitting device by the first interface;

[0016] The light emitting control module includes control circuit, and the control circuit is provided with N IO output ports at the first interface;

[0017] The light emitting device includes light emitting unit array, and the light emitting unit array is provided with X row control signal input ports and Y column control signal input ports at the second interface;X+Y≦N;

[0018] X of the N IO output ports is connected with each row control signal input port respectively, and Y of the N IO output ports is connected with each column control signal input port respectively;The row control signal input port and the column control signal input port are used to receive control signal from the IO output port of the light emitting control module, so that the light emitting unit array emits light under the drive of the control signal.

[0019] Optionally, the first interface of the light emitting control module and the second interface of the light emitting device are connected by at least one of a connector, a socket and a cable.

[0020] Optionally, the light emitting control module further includes a first power module, and the first power module is provided with a first power interface;The light emitting device further includes a second power module, and the second power module is provided with a second power interface;The first power interface and the second power interface are detachably electrically connected.

[0021] The second power module is used to receive the first power signal of external power supply equipment, and under the drive of the first power signal, the second power signal is injected into the first power interface of the first power module through the second power interface.

[0022] The utility model splits the control part and the light emitting part of light source equipment in related art, and modular design is carried out for the two parts, to provide a light emitting control module, a light emitting device and a light source equipment.The light emitting control module has a first interface that can be detachably electrically connected with the light emitting device, and the light emitting control module includes a control circuit, and the control circuit is provided with N IO output ports at the first interface, and the IO output port is used to inject control signal into the row control signal input port and the column control signal input port of the light emitting unit array in the light emitting device, to control the row and column of the light emitting unit array.

[0023] The light-emitting control module provided by the application can be used in combination with a light-emitting device provided with a light-emitting unit array of various sizes to form a light source device with different light-emitting surface sizes under the condition that N is not less than the sum of the number of row control signal input ports and the number of column control signal input ports of the light-emitting device.

[0024] That is, the light-emitting control module provided by the application is compatible with light-emitting devices of various sizes, so that, compared with a technical solution in which a control part for configuring a control circuit and a light-emitting part for configuring a light-emitting unit array are designed integrally, when the light-emitting control module provided by the application is applied, it is not necessary to design a corresponding control circuit for each size of light-emitting unit array, which can reduce the development difficulty and the required resources when developing a light source device with different light-emitting surface sizes. Moreover, when the light-emitting control module provided by the application is combined with a light-emitting device to form a light source device, and the combined light source device is used to light a measured object, only a single light-emitting control module needs to be combined with light-emitting devices of different sizes to form a light source device with different light-emitting surface sizes to meet different use requirements, which helps to increase the flexibility of on-site use.

[0025] Of course, it is not necessary for any product implementing the application to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0027] Figure 1 It is a schematic diagram of a defect detection system in the related art;

[0028] Figure 2 It is an appearance schematic diagram of a light source device in the related art;

[0029] Figure 3 It is Figure 2 an internal structure schematic diagram of a light source device in the related art;

[0030] Figure 4 It is Figure 1 a light reflection path diagram in the system in the related art;

[0031] Figure 5 It is a structure schematic diagram of a light-emitting control module and a light-emitting device provided by the embodiments of the application;

[0032] Figure 6Another structure schematic view of the light emitting control module and the light emitting device provided by the embodiment of the utility model;

[0033] Figure 7 The first kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model;

[0034] Figure 8 The second kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model;

[0035] Figure 9 The third kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model;

[0036] Figure 10 The fourth kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model;

[0037] Figure 11 The fifth kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model;

[0038] Figure 12 The sixth kind of schematic view of the control circuit in the light emitting control module provided by the embodiment of the utility model.

[0039] Reference signs:

[0040] 1 - light source device, 2 - camera, 3 - light source controller, 4 - industrial computer, 5 - measured object, 11 - control part, 12 - light emitting part, 111 - core board, 121 - LED array;

[0041] 21 - light emitting control module, 22 - light emitting device, 23 - connector, 24 - socket, 25 - cable, 211 - control circuit, 211a - first control circuit, 211b - second control circuit, 211c - third control circuit, 211d - fourth control circuit, 212 - light emitting unit array, 2111 - main control module, 2111a - first main control module, 2111b - second main control module, 2111c - third main control module, 2111d - fourth main control module, 2112 - port expansion device, 213 - first interface, 214 - second interface. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art based on the present application belong to the protection scope of the utility model.

[0043] In the field of machine vision, the 2.5D light source is also called a programmed stripe light source, and the programmed stripe light source is often applied in a defect detection system for an object. To facilitate understanding of the technical solution of the utility model, the defect detection system based on the 2.5D light source and the basic structure of the 2.5D light source in the related art are schematically described below.

[0044] Referring to Figure 1 , the defect detection system based on the 2.5D light source specifically includes a light source device 1, a camera 2, a light source controller 3 and an industrial computer 4.

[0045] The light source device 1 is the core device in the defect detection system. In the related art, the appearance of the light source device 1 is specifically as shown in Figure 2 , the light source device 1 includes a control part 11 and a light-emitting part 12, and the two parts are designed in an integrated manner to facilitate on-site environment construction. The light-emitting part 12 is internally configured with an LED array, the LED array is composed of LED lamp beads arranged in rows and columns, and can emit light in the form of horizontal stripe light, vertical stripe light, dark white light, white light and the like. The control part 11 is used for controlling the LED array of the light-emitting part 12 in rows and columns, and performing signal interaction with the light source controller 3.

[0046] Figure 3 The structure diagram of the control part 11 and the light-emitting part 12 of the light source device 1 is shown in , it can be seen that the light-emitting part 12 is internally configured with an LED array 121, if the number of rows of LED lamp beads in the LED array 121 is X and the number of columns is Y, then X row control signal input ports and Y column control signal input ports can be specifically led out from the LED array 121. In addition, the light-emitting part 12 is internally configured with a power module, which can receive external power input and supply power to the related devices inside the light source device 1.

[0047] The control part 11 is internally configured with a core board 111, which is generally a FPGA (Field Programmable Gate Array) control board or the like in actual application. The core board 111 is provided with IO (Input / Output) output ports for connecting with the row control signal input ports and the column control signal input ports of the LED array 121. If the number of the IO output ports provided by the core board 111 is M, then X IO output ports of the M IO output ports are respectively connected with X row control signal input ports of the LED array 121, for injecting row control signals to the control circuit of the LED array 121, and Y IO output ports of the M IO output ports are respectively connected with Y column control signal input ports of the LED array 121, for injecting column control signals to the LED array 121. In the working process of the light source device 1, the core board 111 can control each row and each column of the LED array 121 through the IO output ports, so that the LED array 121 can generate light of any stripe pattern.

[0048] In addition, the core board 111 is also provided with IO ports triggered externally, which are connected with the light source controller 3 through the external interface of the light source device 1. For the IO ports connected with the light source controller 3, the light source controller 3 can send specific control signals to the IO ports of the core board 111 in the working process, so as to control the output signals of the M IO output ports of the core board 111, and then make the LED array 121 of the light emitting part 12 emit light of a stripe pattern corresponding to the specific control signals. In addition, the light source controller 3 can also perform program upgrade on the light source device 1.

[0049] In actual application, according to different actual requirements, the light source device 1 can also be configured with one or more of the following functional modules: a temperature detection module for detecting the operating temperature of the light source device 1; a fan driving module for driving the cooling fan in the light source device 1 to cool the core board 111 and the light source panel of the light source device 1; a reset module for realizing the reset function of the circuit in the light source device 1; a configuration, upgrade and interaction module for realizing the configuration and upgrade of the internal functions of the light source device 1, and the interaction function between the light source device 1 and the light source controller 3; a storage module including DDR (Double Data Rate SDRAM) and FLASH (Flash Memory) or the like, for storing relevant data in the running process of the core board 111. In actual product structure, the above functional modules of the light source device 1 are all controlled by the FPGA in the core board 111.

[0050] In combination Figure 1With Figure 4 The process of detecting surface defects of an object by a defect detection system is exemplarily described. Specifically, the industrial control computer 4 in the defect detection system is a computer device specially used in the field of industrial control, which can detect and control the whole defect detection process. In the defect detection system, the industrial control computer 4 is connected with the light source controller 3 and the camera 2, and is mainly used for triggering the light source controller 3 and controlling the triggering of the camera 2, so that the light source controller 3 and the camera 2 can be synchronized. Figure 1

[0051] In actual application scenarios, the light source controller 3 is generally connected with the computer through a network. When it is necessary to detect defects of the measured object 5, the user can configure specific light source illumination parameters, such as the type of light emitted (fringe light or white light), the specific shape of the fringe, the position and width of the fringe, etc., based on the client provided on the computer connected with the light source controller 3, and then the computer can send the light source illumination parameters to the light source controller 3. The light source controller 3 can form a configuration file according to the light source illumination parameters configured by the user, and send the configuration file to the light source device 1. After the control part 11 of the light source device 1 receives the configuration file sent by the light source controller 3, the core board 111 determines which rows or columns of LED lamp beads in the LED array 121 of the light source device 1 need to be lit by analyzing the configuration file, obtains the row and column information of the LED lamp beads that need to be lit, and outputs the corresponding IO control signal through the IO output port of the FPGA in the core board 111 to control the LED array 121, so that the LED lamp beads in the corresponding rows and columns of the LED array 121 in the light source device 1 are lit under the control of the IO control signal of the core board 111, so that the light source device 1 emits light of the pattern indicated by the light source illumination parameters configured by the user.

[0052] The light emitted by the light source device 1 needs to be specifically irradiated on the surface of the measured object 5 and reflected by the measured object 5, and the camera 2 in the defect detection system is specifically used to collect the pattern of the light reflected by the measured object 5 by using the mirror reflection method. When the light emitted by the light source device 1 is specifically fringe light, the fringe pattern captured by the camera 2 will be deformed accordingly in the case that the surface of the measured object 5 is not a flat surface. By demodulating the stripe pattern captured by the camera 2, the real three-dimensional topography of the measured object 5 can be calculated, so that the fine defects such as concave-convex, scratches, dirt, etc. existing on the surface of the measured object 5 can be detected.

[0053] ​As can be appreciated by those skilled in the art, in order to fully detect whether the surface of the measured object 5 has defects, the light source device 1 needs to emit light that completely covers the measured object 5. In different application scenarios, there are various sizes of measured objects 5, which leads to the need to design light source devices 1 with different light-emitting surface sizes for different sizes of measured objects 5. Specifically, the size of the light-emitting surface of the light source device 1 is the size of the LED array 121 in the light source device 1, and therefore, the size of the LED array 121 (the number of rows and columns of LED lamp beads in the LED array 121) in the light source device 1 with different light-emitting surface sizes is usually different, which further leads to the need to design a corresponding control part 11 according to the actual size of the LED array 121 for the light source device 1 with different light-emitting surface sizes, so that the number of IO output ports provided by the control part 11 and the corresponding internal circuit are adapted to the size of the LED array 121.

[0054] In actual applications, in order to enable the light source device 1 to emit light of any stripe pattern, the control part 11 of the light source device 1 needs to achieve individual control of each row and each column of the LED array 121, which leads to a usually complex circuit design inside the light source device 1. Therefore, if a light source device of a corresponding model is designed for each different size of measured object, the development difficulty is high, and more resources need to be invested.

[0055] To solve the problem of high development difficulty and more resources invested in redesigning a light source device of a corresponding model for different sizes of measured objects, the present application is directed to Figure 2 to Figure 3 The basic structure of the light source device 1 is improved, and the control part 11 and the light-emitting part 12 are modularly designed in two parts, and a light-emitting control module, a light-emitting device, and a light source device are provided. The following will be described in conjunction with specific embodiments.

[0056] Referring to Figure 5 The present application embodiment provides a light-emitting control module 21, which has a first interface 213 for detachable electrical connection with a light-emitting device 22.

[0057] The light-emitting control module 21 includes a control circuit 211, which provides N IO output ports at the first interface 213, and the IO output ports are used to inject control signals to the row control signal input end and the column control signal input end of the light-emitting unit array 212 in the light-emitting device 22, so as to control the row and column of the light-emitting unit array 212.

[0058] The control circuit 211 can be understood as a core board integrated in the light emitting control module 21, and is used to control the light emitting unit array 212 in the light emitting device 22. The light emitting unit array 212 in the light emitting device 22 can be an LED array composed of LED lamp beads, or an array composed of other forms of light emitting elements.

[0059] In the embodiment of the present application, if the light emitting control module 21 is used to control the light emitting unit array 212 in the light emitting device 22, the IO output ports of the control circuit 211 need to be connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212 in the light emitting device 22 in a one-to-one manner.

[0060] For example, if the number of rows of the light emitting unit array 212 in the light emitting device 22 is X, and the number of columns is Y, the light emitting unit array 212 can have X row control signal input ports and Y column control signal input ports. In the embodiment of the present application, X IO output ports of the N IO output ports of the light emitting control module 21 are connected to the X row control signal input ports of the light emitting unit array 212 in a one-to-one manner, and Y IO output ports of the N IO output ports are connected to the Y column control signal input ports of the light emitting unit array 212 in a one-to-one manner.

[0061] Those skilled in the art can understand that, in the case that the IO output ports of the control circuit 211 are connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212 in the light emitting device 22 in a one-to-one manner, by controlling the potential of the output signal of each IO output port of the light emitting control module 21 connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212, the light emitting unit in any row and / or any column of the light emitting unit array 212 can be turned on, so that the light emitting device 22 can emit light of any stripe pattern.

[0062] The embodiments of the present application do not specifically limit the control mode of the light-emitting control module 21 when controlling the rows and columns of the light-emitting unit array 212. In one example, the anodes of each row and column of light-emitting units of the light-emitting unit array 212 are connected to a power supply, the cathodes are connected to ground through a cathode control circuit, and the row control signal input end and the column control signal input end are led out from the cathode control circuit of each row and column of light-emitting units. The conduction or disconnection of the cathode control circuit of any row or column of light-emitting units is controlled by the output signal of the IO output port of the light-emitting control module 21. The cathode control circuit can be built by a transistor or a MOS tube. When the light-emitting control module 21 injects a high-level signal into the cathode control circuit of a certain light-emitting unit through the IO output port, the cathode control circuit is turned on, the cathode of the light-emitting unit is connected to ground, and thus the row of light-emitting units is lit. When the light-emitting control module 21 injects a low-level signal into the cathode control circuit of a certain light-emitting unit through the IO output port, the cathode control circuit is turned off, the cathode of the light-emitting unit is not connected to ground, and thus the light-emitting unit is not lit. In actual application, during the process of controlling the light-emitting unit array 212 to emit specific pattern light by the light-emitting control module 21, the output signal of the IO output port of the light-emitting control module 21 can be maintained in a constant high or low state, or can be a PWM (Pulse Width Modulation) wave of a certain frequency. When the light-emitting control module 21 controls the light-emitting unit array 212 in the form of a PWM wave, the core board of the light-emitting control module 21 can adjust the on-off time of the light-emitting unit (generally in milliseconds or nanoseconds, which is not perceived by the human eye) by adjusting the duty cycle of the PWM wave, so as to realize the effect of adjusting the brightness of the light-emitting unit array 212.

[0063] Based on the above description, it can be understood that, in order to ensure that the light-emitting control module 21 can realize individual control for each row and each column in the light-emitting unit array 212 of the light-emitting device 22, it should be ensured that N is not less than the sum of the number of row control signal input ports and the number of column control signal input ports of the light-emitting device 22, that is, N≧X+Y.

[0064] In actual application scenarios, the number of IO output ports provided by the control circuit in the light-emitting control module can be designed according to actual needs. After the design of the light-emitting control module is completed, under the condition that the number of IO output ports provided by the light-emitting control module is not less than the sum of the number of row control signal input ports and the number of column control signal input ports of the light-emitting device, the light-emitting control module can be combined with light-emitting devices of various sizes (the size of the light-emitting device refers to the number of rows and columns of the light-emitting unit array in the light-emitting device) to form light source devices with different light-emitting surface sizes.

[0065] That is, the light emitting control module provided by the embodiments of the present application can be compatible with light emitting devices of various sizes, so that, compared with the technical solution of integrally designing the control part for configuring the control circuit and the light emitting part for configuring the light emitting unit array, when the light emitting control module provided by the embodiments of the present application is applied, it is not necessary to design a corresponding control circuit for each size of the light emitting unit array, which can reduce the development difficulty and the required resources when developing light source devices with different light emitting surface sizes. Moreover, when the light emitting control module provided by the embodiments of the present application is combined with the light emitting device to form a light source device, and the combined light source device is used to light the measured object, only a single light emitting control module needs to be combined with light emitting devices of different sizes to form light source devices with different light emitting surface sizes to meet different use requirements, which helps to increase the flexibility of on-site use.

[0066] When the light emitting control module 21 and the light emitting device 22 are combined for use, the embodiments of the present application do not limit the specific connection form of the light emitting control module 21 and the light emitting device 22, as long as the light emitting control module 21 can inject control signals into each row control signal input port and column control signal input port of the light emitting device 22.

[0067] Specifically, to facilitate the combination of the light emitting control module 21 and the light emitting device 22, the light emitting device can have a second interface 214 corresponding to the first interface 213, and the light emitting unit array 212 in the light emitting device can provide each row control signal input port and column control signal input port at the second interface 214.

[0068] In one example, as shown in Figure 6 The first interface 213 of the light emitting control module 21 and the second interface 214 of the light emitting device 22 can be electrically connected through at least one of the connector 23, the socket 24 or the cable 25.

[0069] In some embodiments, to improve the degree of freedom in space position when the light emitting control module 21 and the light emitting device 22 are connected, one of the light emitting control module 21 and the light emitting device 22 can be further connected to the interface of the other through a cable 25 of a certain length after being connected to the connector 23 or the socket 24 through its interface.

[0070] In some embodiments, in addition to the electrical connection between the light-emitting control module 21 and the light-emitting device 22 through the connector 23, the socket 24 or the cable 25 described above, a structure that can be combined in structure can be designed for the light-emitting control module 21 and the light-emitting device 22, so that the user can use them in an integrated form, which is convenient for the user to build the on-site environment. For example, a protruding structure can be provided on the side of the light-emitting control module 21 provided with the first interface 213, and a corresponding groove can be provided on the side of the light-emitting device 22 provided with the second interface 214, so that the user can structurally connect the light-emitting control module 21 and the light-emitting device 22, so that they are spliced into an integrated structure.

[0071] In addition, as shown in Figure 6 In addition to the IO output port, the control circuit 211 of the light-emitting control module 21 also provides an IO port triggered externally, and this part of the IO port is connected with the light source controller 3 through the external interface of the light-emitting control module 21. Among them, for the IO port connected with the light source controller 3 (for the sake of description, this part of the IO port will be called external IO port in the following), the light source controller 3 can send a specific control signal to the external IO port during the working process, so as to control the output signal of the N IO output ports of the control circuit 211, and then make the light-emitting unit array 212 of the light-emitting device 22 emit light rays of the stripe pattern corresponding to the specific control signal.

[0072] The process of controlling the light-emitting unit array 212 in the light-emitting device 22 will be further described in detail in combination with the application scenarios shown in Figure 1

[0073] ​As mentioned above, the light emitting control module 21 and the light emitting device 22 combined together meet the condition that the number N of IO output ports provided by the control circuit 211 of the light emitting control module 21 is not less than the sum X+Y of the number X of row control signal input ports and the number Y of column control signal input ports of the light emitting unit array 212 of the light emitting device 22. It is easy to understand that when N=X+Y, each of the N IO output ports provided by the control circuit 211 is connected to a row control signal input port or a column control signal input port of the light emitting unit array 212, and when N>X+Y, only part of the N IO output ports provided by the control circuit 211 is connected to a row control signal input port or a column control signal input port of the light emitting unit array 212. In actual applications, each of the IO output ports provided by the control circuit 211 generally has a respective port number. In one example, for the case of N>X+Y, in order to facilitate the management of each IO output port, the first X+Y IO output ports among the N IO output ports can be connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212 in the order of the port numbers from small to large.

[0074] As an example, after X+Y IO output ports among the N IO output ports provided by the light emitting control module 21 are connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212 in a one-to-one manner, the connection relationship between the port numbers of the IO output ports of the light emitting control module 21 and the row numbers of the row control signal input ports and the column numbers of the column control signal input ports of the light emitting unit array can be recorded by a connection relationship file. For example, the following connection relationship can be recorded by the connection relationship file: the IO output port with the port number i is connected to the row control signal input port of the mth row, the IO output port with the port number j is connected to the column control signal input port of the nth column, and so on.

[0075] As can be understood by those skilled in the art, the pattern of light emitted by the light emitting unit array 212 of the light emitting device 22 is determined by the potentials of the control signals output by the IO output ports of the control circuit 211 of the light emitting control module 21 connected to the row control signal input ports and the column control signal input ports of the light emitting unit array 212. Thus, in one example, in order to facilitate the light emitting control module 21 to output control signals matching the light pattern configured by the user, the corresponding connection relationship file can be configured inside the light emitting control module 21 after the combination of the light emitting control module 21 and the light emitting device 22 is completed. In the case where the connection relationship file is configured inside the light emitting control module 21, the process of the user controlling the light emitting device 22 to emit light with a specific stripe pattern is as follows:

[0076] As described above, the light source controller 3 is generally connected with the computer through the network. First, the user configures the specific light source lighting parameters through the computer, and the computer issues the light source lighting parameters to the light source controller 3. The light source controller 3 generates a configuration file according to the light source lighting parameters configured by the user and issues the configuration file to the light emitting control module 21. After receiving the configuration file, the light emitting control module 21 determines the row number and / or column number of the light emitting unit in the light emitting unit array 212 of the light emitting device 22 that needs to be lit by parsing the configuration file, and determines the light emitting unit corresponding to the row number and / or column number to be lit according to the pre-configured connection relationship file. The control signal that each IO output port of the main control module 2111 in the control circuit 211 should have is then output through the IO output port of the main control module 2111. Under the drive of the control signal of each IO output port of the control circuit 211 in the light emitting control module 21, the light emitting unit corresponding to the row number and / or column number in the light emitting array of the light emitting device 22 will be lit. Thus, based on the above control process, the light emitting array of the light emitting device 22 can emit light of any stripe pattern.

[0077] As can be understood from the foregoing description, the more IO output ports provided by the control circuit 211 of the light emitting control module 21, the larger size of the light emitting device 22 that the light emitting control module 21 can be used with, and the more different sizes of the light emitting device 22 that the light emitting control module 21 can be compatible with. In some embodiments of the present application, in order to enable the light emitting control module 21 to provide a larger number of IO output ports through the control circuit 211, the IO output ports in the light emitting device 22 can be designed to be scalable. The present application does not limit the specific form of the scalable design. In the following, several different scalable design schemes of the IO output ports are described respectively in conjunction with specific embodiments:

[0078] In an embodiment of the present application, as shown in Figure 7 the control circuit 211 includes a main control module 2111, and some output ports of the main control module 2111 are connected with a port expansion device 2112. The N IO output ports provided by the control circuit 211 include the remaining output ports of the main control module 2111 and the output ports of the port expansion device 2112.

[0079] The main control module 2111 is the core component of the control circuit 211 in the light emitting control module 21, and is used to provide the output signal outputted by the control circuit 211. The scalable design of the IO output ports in the light emitting device 22 in the embodiments of the present application can be specifically understood as the port expansion design for the output ports of the main control module 2111.

[0080] In Figure 7In the schematic diagram, the input ports of the port expansion device 2112 are connected with the output ports of the master module 2111, and the output ports of the port expansion device 2112 serve as the IO output ports of the control circuit 211. In addition, the remaining output ports of the master module 2111 which are not connected with the port expansion device 2112 also serve as the IO output ports of the control circuit 211.

[0081] If the number of the input ports of the port expansion device 2112 is denoted as a, and the number of the output ports of the port expansion device 2112 is denoted as b, it is generally satisfied that b>a. Thus, by connecting one port expansion device 2112 on the output port of the master module 2111, the one expansion device can expand the a output ports originally provided by the master module 2111 into b output ports, and the number of the IO output ports provided by the control circuit 211 is increased by b-a.

[0082] In addition, in actual application, as shown in the schematic diagram, all the output ports of the master module 2111 can be connected with the port expansion device 2112, and the IO output ports provided by the control circuit 211 are specifically the output ports of the port expansion devices 2112 connected with the master module 2111. Figure 8

[0083] For the scenario of Figure 7 to Figure 8 , the control signal inputted by the outside (for example, the light source controller 3) is received by the master module 2111, so as to realize the control of the output signal of the N IO output ports provided by the control circuit 211.

[0084] For example, the port expansion device 2112 can specifically include at least one of a decoder, a CPLD (Complex Programmable Logic Device) and an FPGA. In combination with Figure 7 and Figure 8 , it can be easily understood that, when the decoder is used as the port expansion device 2112, the input ports of the decoder are connected with the output ports of the master module 2111, and the output ports of the decoder serve as the IO output ports of the control circuit 211; when the CPLD is used as the port expansion device 2112, the input ports of the CPLD are connected with the input ports of the master module 2111, and the output ports of the CPLD serve as the IO output ports of the control circuit 211; similarly, when the FPGA is used as the port expansion device 2112, the input ports of the FPGA are connected with the input ports of the master module 2111, and the output ports of the FPGA serve as the IO output ports of the control circuit 211.

[0085] ​In an embodiment of the present application, the control circuit 211 comprises a plurality of cascaded master modules 2111, and each of the plurality of master modules 2111 provides part of the N IO output ports of the control circuit 211.

[0086] The cascading between the master modules 2111 can be understood as connecting the input of one master module 2111 to the output of another master module 2111.

[0087] Figure 9 An example of cascading two master modules is given, in which the input port of the second master module 2111b is connected to the output port of the first master module 2111a, the output port of the second master module 2111b serves as an IO output port of the control circuit 211, and the remaining output ports of the first master module 2111a also serve as IO output ports of the control circuit 211. When the number of IO output ports that the second master module 2111b can provide is greater than the number of output ports occupied by the second master module 2111b from the first master module 2111a, the number of IO output ports that the first master module 2111a can originally provide can be effectively expanded. In actual application, other master modules can be further cascaded on the remaining output ports of the first master module 2111a and / or the output ports of the second master module 2111b.

[0088] For the scenario of Figure 9 , the control signal input from the outside (for example, the light source controller 3) is received by the first master module 2111a, so as to realize the control of the output signal of the N IO output ports provided by the control circuit 211.

[0089] In an embodiment of the present application, the control circuit 211 comprises a plurality of parallel master modules 2111, and each of the plurality of master modules 2111 provides part of the N IO output ports.

[0090] The parallel of the master modules 2111 can be understood as that each master module 2111 receives the control signal input from the outside during operation, and the output signal of each IO output port provided by each master module 2111 is controlled by the control signal received by itself. Figure 10 An example is given, which includes a third master module 2111c and a fourth master module 2111d in parallel, and the output ports of the third master module 2111c and the fourth master module 2111d each serve as an IO output port of the control circuit 211. In actual application, a larger number of parallel master modules 2111 can also be further arranged, which is not limited in the present application.

[0091] In actual application, a plurality of master modules 2111 with cascade relationship and parallel relationship can be simultaneously set in the control circuit 211 according to actual requirements, and after the master modules 2111 with cascade relationship and / or parallel relationship are set, the output port of the master module 2111 can be further connected with the port expander 2112.

[0092] In an embodiment of the present application, the light emitting control module 21 comprises a plurality of cascaded control circuits 211, each of which comprises one or more master modules 2111, and the master modules 2111 in the plurality of control circuits 211 provide part of the IO output ports in the N IO output ports.

[0093] The plurality of control circuits 211 in the embodiment of the present application can be understood as a plurality of core boards integrated in the light emitting control module 21, and the related circuits designed on each core board are referred to as a control circuit 211. Thus, the cascade of the control circuits 211 can be understood as the cascade of the core boards. The cascade between the core boards means connecting the input of one core board to the output of another core board.

[0094] Figure 11 An example of the cascade of two core boards is given, in which the input port of the second control circuit 211b on one core board is connected with the output port of the first control circuit 211a on another core board, the output port of the master module 2111 in the second control circuit 211b serves as the IO output port provided by the light emitting control module 21, and the remaining output port of the master module 2111 in the first control circuit 211a also serves as the IO output port provided by the light emitting control module 21. When the number of IO output ports that can be provided by the second control circuit 211b is greater than the number of output ports occupied by the second control circuit 211b from the first control circuit 211a, the number of IO output ports that can be originally provided by the first control circuit 211a can be effectively expanded. In actual application, other master modules 2111 can be further cascaded on the remaining output port of the first control circuit 211a and / or the output port of the second control circuit 211b.

[0095] In the case of the cascade of the control circuit 211, one or more processing modules can be set in each control circuit 211. When a plurality of processing modules are set in one control circuit 211, the different processing modules can be set in parallel or in cascade as described above.

[0096] For the scenario of Figure 11 , the control signal input by the outside (for example, the light source controller 3) is received by the first control circuit 211a, so as to realize the control of the output signal of the N IO output ports provided by the light emitting control module 21.

[0097] In one embodiment of the present application, the light-emitting control module 21 comprises a plurality of parallel control circuits 211, each of which comprises one or more master modules 2111, and the master modules 2111 in the plurality of control circuits 211 provide part of the IO output ports in the N IO output ports.

[0098] The parallel control circuits 211 in the present application can be understood as that a plurality of core boards are integrated in the light-emitting control module 21, and the related circuits designed on each core board are referred to as a control circuit 211. Thus, the parallel of the control circuits 211 can be understood as the parallel of the core boards.

[0099] The parallel of the control circuits 211 can be understood as that each control circuit 211 receives the control signals inputted from the outside during operation, and the output signals of each IO output port provided by each control circuit 211 are controlled by the control signals received by each control circuit 211. Figure 12 An example is given, which includes a third control circuit 211c and a fourth control circuit 211d in parallel, and the output ports of the third control circuit 211c and the fourth control circuit 211d are both IO output ports of the light-emitting control module 21. In actual application, a larger number of parallel control circuits 211 can be further provided, which is not limited in the present application.

[0100] In some embodiments of the present application, the light-emitting control module 21 further comprises a first power module, and the first power module is provided with a first power interface; and the light-emitting device 22 further comprises a second power module, and the second power module is provided with a second power interface; the first power interface and the second power interface are detachably electrically connected. The second power module of the light-emitting device 22 can receive external power input, and inject a power signal to the first interface of the first power module through the second power interface, so that the power modules in the light-emitting control module 21 and the light-emitting device 22 can both receive the power signal, and supply power to the related devices in the respective interiors. In actual application, the second power interface can be directly connected to the first power interface to transmit the power signal to the first power interface, or the first power interface can be connected to the second power interface through the socket 24, the connector 23 or the cable 25, so that the second power module of the light-emitting device 22 can receive external power input, and input the power signal to the socket 24, the connector 23 or the cable 25 through the second power interface, so that the power signal is sent to the power module of the light-emitting control module 21. Figure 6

[0101] ​In some examples, the external power input can be received by the first power module of the light emitting control module 21, and the power signal is transmitted to the second power module of the light emitting device 22, or the light emitting control module 21 and the light emitting device 22 respectively receive the external power input based on the respective power module.

[0102] In some embodiments of the present application, the core board of the light emitting control module 21 can also be configured with modules such as the temperature detection module and the fan driving module as described above, which can be referred to the foregoing description.

[0103] Based on the same inventive concept, the present application also provides a light emitting device. Referring to Figure 5 , the light emitting device 22 has a second interface 214 for detachable electrical connection with the light emitting control module 21.

[0104] The light emitting device 22 includes a light emitting unit array 212, which is provided with X row control signal input ports and Y column control signal input ports at the second interface 214, the row control signal input ports and the column control signal input ports being used to receive control signals from the IO output ports of the light emitting control module 21, so that the light emitting unit array 212 emits light under the driving of the control signals; wherein X+Y is not greater than the number of IO output ports of the light emitting control module 21.

[0105] For more description of the light emitting device 22, please refer to the foregoing embodiment of the light emitting control module 21, which will not be repeated here.

[0106] Based on the same inventive concept, the present application also provides a light source device. Referring to Figure 5 , the light source device includes a light emitting control module 21 and a light emitting device 22, the light emitting control module 21 has a first interface 213, the light emitting device 22 has a second interface 214, and the light source controller is detachably electrically connected with the second interface 214 of the light emitting device 22 through the first interface 213;

[0107] The light emitting control module 21 includes a control circuit 211, which is provided with N IO output ports at the first interface 213;

[0108] The light emitting device 22 includes a light emitting unit array 212, which is provided with X row control signal input ports and Y column control signal input ports at the second interface 214; X+Y≦N;

[0109] X of the N IO output ports are connected with each row control signal input port respectively, Y of the N IO output ports are connected with each column control signal input port respectively; the row control signal input port and the column control signal input port are used for receiving control signals from the IO output port of the light emitting control module 21, so that the light emitting unit array 212 emits light under the driving of the control signals.

[0110] More description about the light source device can refer to the foregoing embodiment of the light emitting control module 21, which will not be repeated here.

[0111] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A light emission control module, characterized by, The light-emitting device has a first interface for detachable electrical connection with the light-emitting control module. The light-emitting control module comprises a control circuit, the control circuit is provided with N IO output ports at the first interface, the IO output ports are used for injecting control signals to row control signal input ports and column control signal input ports of a light-emitting unit array in the light-emitting device to control the light-emitting unit array in rows and columns; wherein N is not less than the sum of the number of row control signal input ports and column control signal input ports of the light-emitting device.

2. The light emission control module of claim 1, wherein, The control circuit comprises a master control module, part of the output ports of the master control module are connected with a port expansion device, the N IO output ports comprise the remaining output ports of the master control module and the output ports of the port expansion device; or all the output ports of the master control module are connected with a port expansion device, and the N IO output ports comprise the output ports of the port expansion device.

3. The light emission control module of claim 2, wherein, The port expansion device comprises at least one of a decoder, a CPLD and a FPGA. The input ports of the decoder are connected with the output ports of the master control module, and the output ports of the decoder serve as the IO output ports of the control circuit; the input ports of the CPLD are connected with the input ports of the master control module, and the output ports of the CPLD serve as the IO output ports of the control circuit; the input ports of the FPGA are connected with the input ports of the master control module, and the output ports of the FPGA serve as the IO output ports of the control circuit.

4. The light emission control module of claim 1, wherein, The control circuit comprises a plurality of parallel master control modules, and the plurality of master control modules respectively provide part of the N IO output ports.

5. The light emission control module of claim 1, wherein, The control circuit comprises a plurality of cascaded master control modules, and the plurality of master control modules respectively provide part of the N IO output ports.

6. The light emission control module of claim 1, wherein, The light-emitting control module comprises a plurality of parallel control circuits, each of the control circuits comprises one or more master control modules, and the master control modules in the plurality of control circuits respectively provide part of the N IO output ports.

7. The light emission control module of claim 1, wherein, The light-emitting control module comprises a plurality of cascaded control circuits, each of the control circuits comprises one or more master control modules, and the master control modules in the plurality of control circuits respectively provide part of the N IO output ports.

8. A light emitting device, characterized by The light-emitting device has a second interface for detachable electrical connection with the light-emitting control module. The light-emitting device comprises a light-emitting unit array, the light-emitting unit array is provided with X row control signal input ports and Y column control signal input ports at the second interface, the row control signal input ports and the column control signal input ports are used for receiving control signals from the IO output ports of the light-emitting control module, so that the light-emitting unit array emits light under the driving of the control signals; wherein X+Y is not greater than the number of IO output ports of the light-emitting control module.

9. A light source device, characterized by comprising: The application relates to a light-emitting control module and a light-emitting device, the light-emitting control module has a first interface, the light-emitting device has a second interface, and the light-emitting control module is detachably electrically connected with the second interface of the light-emitting device through the first interface. The light-emitting control module comprises a control circuit, and the control circuit is provided with N IO output ports at the first interface. The light-emitting device comprises a light-emitting unit array, and the light-emitting unit array is provided with X row control signal input ports and Y column control signal input ports at the second interface; X+Y<=N. X of the N IO output ports are respectively connected with each of the row control signal input ports, and Y of the N IO output ports are respectively connected with each of the column control signal input ports; the row control signal input ports and the column control signal input ports are used for receiving control signals from the IO output ports of the light-emitting control module, so that the light-emitting unit array emits light under the drive of the control signals.

10. The light source apparatus according to claim 9, wherein The first interface of the light-emitting control module is connected with the second interface of the light-emitting device through at least one of a connector, a socket and a cable.

11. The light source apparatus according to claim 9, wherein The light-emitting control module further comprises a first power module, and the first power module is provided with a first power interface; the light-emitting device further comprises a second power module, and the second power module is provided with a second power interface; the first power interface is detachably electrically connected with the second power interface. The second power module is used for receiving a first power signal of an external power supply device, and injecting a second power signal into the first power interface of the first power module through the second power interface under the drive of the first power signal.

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