Method, device and system for closed-loop control of ultraviolet curing

Abstract

The invention provides a closed-loop control ultraviolet curing method, device and system, a UV light source controller controls a UV light source to turn on based on a preset output power in response to the obtained preset output power, the UV light source collects an actual light intensity value and transmits the actual light intensity value back to the UV light source controller, and the UV light source controller controls the UV light source to turn on based on the preset output power. The UV light source controller detects whether the actual light intensity value reaches a preset value range or not, and if not, the output power is adjusted through PID till the actual light intensity value is adjusted to the preset value range; the light intensity output is controlled by adopting a PID (Proportion Integration Differentiation) adjusting method, and when a detection plate of a light source detects the change of an external condition, the equipment power can be automatically adjusted according to the actual change of a light intensity value, so that the output light intensity is stabilized in a numerical range required by a customer, and the quality abnormity caused by unstable light intensity output is effectively avoided; in addition, the system is based on RS-485, connection of a plurality of modules is achieved, network cabling is simplified, and system expansion and maintenance are facilitated.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of ultraviolet curing control, and in particular to a method, device and system for closed-loop control of ultraviolet curing. Background Art

[0002] Ultraviolet light curing (UV curing) is a technology that uses ultraviolet light to trigger the curing reaction of photosensitive materials (photocuring agents) to quickly harden and cure coatings or adhesives. Ultraviolet light curing equipment mainly includes an ultraviolet light curing module (lamp head) and a control module (controller) that provides power and control signals to the lamp head. The power and signals are transmitted to the lamp head through the system controller, and the ultraviolet electrodeless lamp inside the lamp head emits ultraviolet light to achieve the curing process of UV inks, adhesives and coatings.

[0003] UV curing equipment is relatively complex and requires a high-quality UV light source and a precise control system, especially the control of the brightness value. However, in the existing technology, it is impossible to effectively and stably control the stable output of light intensity after external conditions change, which can easily cause abnormal quality of client products due to unstable actual light intensity output. Summary of the invention

[0004] The object of the present invention is to provide a method, device and system for closed-loop control of ultraviolet curing, so as to at least partially solve the above-mentioned problems.

[0005] According to one aspect of the present invention, a method for closed-loop control of ultraviolet curing is provided, comprising: In response to obtaining the preset output power, the UV light source controller controls the UV light source to turn on the light based on the preset output power. The UV light source collects the actual light intensity value and transmits the actual light intensity value back to the UV light source controller. The UV light source controller detects whether the actual light intensity value reaches the preset value range. If not, the output power is adjusted through PID until the actual light intensity value is adjusted to the preset value range.

[0006] In some embodiments, the method further includes obtaining the preset output power through a touch screen of the UV light source controller, or setting the UV light source controller by remotely controlling the UV light source controller.

[0007] In some embodiments, the method further includes connecting the UV light source controller to the inside of the UV light source and between the two based on an RS-485 communication circuit.

[0008] In some embodiments, the method further includes that the RS-485 communication circuit includes: in the UV light source controller, the CPU2 on the control main board is respectively connected to the touch screen, the remote control module, and the U3 module, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen, and the touch screen communicates with the main control board through the TX and RX ports to control the UV light source to turn on the headlight, turn off the light, standby and turn off the light, and display the system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module uses the TX and RX ports to control the UV light source to turn on, turn off, standby, and turn off the light. The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively.

[0009] In some embodiments, the method further includes: the B port of U3 is further connected to the resistor R10, the A port is connected to the other end of the resistor R10, one end of the resistor R10 is further connected to the resistor R8, the diode D6 and the diode D5, the other end of the resistor R8 is grounded, the other end of the diode D5 is grounded, the other end of the resistor R10 is further connected to the other end of D6, the resistor R9 and the diode D7, the other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded; Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

[0010] In some embodiments, the method further includes, if the actual light intensity value cannot be adjusted to a preset value range by adjusting the output power through PID for more than a predetermined number of times, then outputting a warning message and turning off the light.

[0011] According to another aspect of the present invention, a closed-loop controlled UV curing device is provided, comprising: The acquisition module is used to acquire the actual light intensity value and transmit the actual light intensity value back to the UV light source controller. The adjustment module is used for responding to obtaining a preset output power. The UV light source controller controls the UV light source to turn on the light based on the preset output power, and is used to detect whether the actual light intensity value reaches the preset value range. If not, the output power is adjusted through PID until the actual light intensity value is adjusted to the preset value range.

[0012] In some embodiments, the device further includes, if the actual light intensity value cannot be adjusted to a preset value range by adjusting the output power through PID for more than a predetermined number of times, then outputting a warning message and turning off the light.

[0013] An embodiment of the present application also provides a closed-loop control system for ultraviolet curing, the system comprising: the device as described above, a power supply, a touch screen or a remote control terminal respectively connected to a UV light source controller module, the power supply providing power for the UV light source controller module, the touch screen or the remote control terminal being used to set a preset output power value, the UV light source controller module being connected to the touch screen and the UV light source module via an RS-485 communication circuit.

[0014] In some embodiments, the system further includes: the RS-485 communication circuit includes: in the UV light source controller, the CPU2 on the control main board is connected to the touch screen, the remote control module, and the U3 module respectively, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen. The touch screen communicates with the main control board through the TX and RX ports to control the UV light source to turn on the headlight, turn off the light, standby and turn off the light, and display the system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module uses the TX and RX ports to control the UV light source to turn on, turn off, standby, and turn off the light. The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively; The B port of U3 is also connected to the resistor R10, and the A port is connected to the other end of the resistor R10. One end of the resistor R10 is connected to the resistor R8, the diode D6 and the diode D5. The other end of the resistor R8 is grounded. The other end of the diode D5 is grounded. The other end of the resistor R10 is connected to the other end of D6, the resistor R9 and the diode D7. The other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded. Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

[0015] The present invention provides a method, device and system for closed-loop control of ultraviolet curing. In response to obtaining a preset output power, a UV light source controller controls the UV light source to turn on the light based on the preset output power. The UV light source collects an actual light intensity value and transmits the actual light intensity value back to the UV light source controller. The UV light source controller detects whether the actual light intensity value reaches a preset value range. If not, the output power is adjusted by PID until the actual light intensity value is adjusted to the preset value range. The PID adjustment method is used to control the light intensity output. When a detection board of the light source detects a change in external conditions, the power of the device can be automatically adjusted according to the actual change in the light intensity value, so that the output light intensity is stabilized within the value range required by the customer, and quality abnormalities caused by unstable light intensity output are effectively avoided. In addition, the system of the present invention is based on RS-485, realizes the connection of multiple modules, simplifies network wiring, and is convenient for system expansion and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a closed-loop controlled UV curing method provided in an embodiment of the present application.

[0017] Figure 2 This is a schematic diagram of the RS-485 communication circuit structure provided in an embodiment of the present application.

[0018] Figure 3 A schematic diagram of a closed-loop controlled UV curing device provided in an embodiment of the present application.

[0019] Figure 4 A schematic diagram of a closed-loop controlled UV curing system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, 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.

[0021] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are descriptions of the structure of the present invention based on the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] The "first" and "second" in this technical solution are only used to distinguish the names of the same or similar structures, or corresponding structures with similar functions, and are not an arrangement of the importance of these structures, nor do they have a ranking, comparison of size, or other meanings.

[0023] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two structures. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the overall idea of ​​the present invention and the specific context of the present solution.

[0024] The present application embodiment provides a closed-loop control method for ultraviolet curing. Specifically, please refer to Figure 1 The basic implementation process of this embodiment is as follows: Step S1: In response to obtaining a preset output power, a UV light source controller controls the UV light source to turn on based on the preset output power.

[0025] The UV light source controller first sets the output power of the UV light source through the touch screen or remote control. After the output power is set, it sends a light-on command to the main control board. After receiving the preset power value and the light-on command, the main control board turns on the light according to the preset power. Step S2: The UV light source collects actual light intensity values ​​and transmits the actual light intensity values ​​back to the UV light source controller.

[0026] When the light is turned on, the light detection board inside the UV light source starts to detect the actual output light intensity value and transmits the light intensity value back to the main control board. Step S3: The UV light source controller detects whether the actual light intensity value reaches the preset value range. Step S4: if not, adjust the output power through PID until the actual light intensity value is adjusted to the preset value range.

[0027] The main control board adjusts the actual light intensity value to within the preset value range through PID regulation according to the preset power value, so as to achieve the effect that the actual output light intensity value is consistent with the preset light intensity value. The consistency and stability of product quality can be guaranteed during continuous operation. If the preset light intensity value cannot be reached after continuous adjustment, the main control board will give an alarm prompt and turn off the lights.

[0028] The principle of PID light regulation is to achieve precise control of the brightness of the light source through the combined effects of the three links of proportion (P), integration (I) and differentiation (D). The PID controller performs proportional, integral and differential operations respectively based on the deviation between the target value and the actual feedback value, and weights and combines the results to output the final light control signal. Specifically, the proportional link adjusts the brightness according to the current deviation; the integral link is responsible for eliminating the long-term accumulated deviation; and the differential link predicts future deviation changes and makes adjustments in advance. The three work together to ensure that the brightness of the light source reaches the target value quickly and accurately.

[0029] In some embodiments, the preset output power is obtained through the touch screen of the UV light source controller, or is set by remotely controlling the UV light source controller. The remote controller can send the set power value to the UV light source controller through an interface connected to the UV light source controller CPU.

[0030] In some embodiments, the UV light source controller is connected to the UV light source and the UV light source is connected to each other based on RS-485 communication circuit. Figure 2 In the UV light source controller, the CPU2 on the control mainboard is connected to the touch screen, the remote control module, and the U3 module respectively, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen. The touch screen communicates with the main control board through the TX and RX ports to control the UV light source's headlight on, off, standby, and off operations, and to display system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module uses the TX and RX ports to control the UV light source to turn on, turn off, standby, and turn off the light. The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively.

[0031] In some embodiments, the RS-485 communication circuit further includes: the B port of U3 is further connected to the resistor R10, the A port is connected to the other end of the resistor R10, one end of the resistor R10 is further connected to the resistor R8, the diode D6 and the diode D5, the other end of the resistor R8 is grounded, the other end of the diode D5 is grounded, the other end of the resistor R10 is further connected to the other end of D6, the resistor R9 and the diode D7, the other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded; Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

[0032] Further improve the circuit's surge resistance and anti-static ability, and provide good protection for the circuit.

[0033] In some embodiments, if the actual light intensity value cannot be adjusted to the preset value range by adjusting the output power through PID for more than a predetermined number of times, a warning message is output and the light is turned off.

[0034] Corresponding to the above method embodiment, the embodiment of the present invention further provides a device, and the closed-loop controlled ultraviolet curing device described below and the closed-loop controlled ultraviolet curing method described above can correspond to each other.

[0035] like Figure 3 As shown, the device comprises, The acquisition module 301 is used to acquire the actual light intensity value and transmit the actual light intensity value back to the UV light source controller. The adjustment module 302 is used for responding to obtaining a preset output power. The UV light source controller controls the UV light source to turn on the light based on the preset output power, and is used to detect whether the actual light intensity value reaches the preset value range. If not, the output power is adjusted through PID until the actual light intensity value is adjusted to the preset value range.

[0036] In some embodiments, the UV light source controller first sets the output power of the UV light source through a touch screen or remote control. After the output power is set, a light-on command is sent to the main control board. After receiving the preset power value and the light-on command, the UV light source is turned on according to the preset power.

[0037] If the actual light intensity value cannot be adjusted to the preset value range by PID adjusting the output power for more than a predetermined number of times, a warning message will be output and the light will be turned off.

[0038] Corresponding to the above method embodiment, the embodiment of the present invention further provides a system. The closed-loop controlled ultraviolet curing system described below and the closed-loop controlled ultraviolet curing method described above can be referred to each other.

[0039] like Figure 4 As shown, the system includes, As the device described above, the power supply 401, the touch screen 402 or the remote control terminal (not shown) connected to the UV light source controller module 403 respectively, The power supply provides power to the UV light source controller module. The touch screen or remote control terminal is used to set the preset output power value. The UV light source controller module is connected to the touch screen and UV light source module 404 via an RS-485 communication circuit.

[0040] The RS-485 communication circuit includes: in the UV light source controller, the CPU2 on the control main board is connected to the touch screen, the remote control module, and the U3 module respectively, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen. The touch screen communicates with the main control board through the TX and RX ports to control the UV light source to turn on the headlight, turn off the light, standby and turn off the light, and display the system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module uses the TX and RX ports to control the UV light source to turn on, turn off, standby, and turn off the light. The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively; The B port of U3 is also connected to the resistor R10, and the A port is connected to the other end of the resistor R10. One end of the resistor R10 is connected to the resistor R8, the diode D6 and the diode D5. The other end of the resistor R8 is grounded. The other end of the diode D5 is grounded. The other end of the resistor R10 is connected to the other end of D6, the resistor R9 and the diode D7. The other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded. Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

[0041] Furthermore, in some embodiments, if the actual light intensity value cannot be adjusted to the preset value range by adjusting the output power through PID for more than a predetermined number of times, a warning message is output and the light is turned off.

[0042] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0043] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0044] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A closed-loop controlled UV curing method, characterized in that: The method comprises: In response to obtaining the preset output power, the UV light source controller controls the UV light source to turn on the light based on the preset output power. The UV light source collects the actual light intensity value and transmits the actual light intensity value back to the UV light source controller. The UV light source controller detects whether the actual light intensity value reaches the preset value range. If not, the output power is adjusted through PID until the actual light intensity value is adjusted to the preset value range.

2. The method according to claim 1, characterized in that: The preset output power is obtained through the touch screen of the UV light source controller, or is set by remotely controlling the UV light source controller.

3. The method according to claim 2, characterized in that: The UV light source controller is connected to the inside of the UV light source and the two are connected based on an RS-485 communication circuit.

4. The method according to claim 3, characterized in that: The RS-485 communication circuit includes: in the UV light source controller, the CPU2 on the control main board is connected to the touch screen, the remote control module, and the U3 module respectively, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen. The touch screen communicates with the main control board through the TX and RX ports to control the UV light source to turn on the headlight, turn off the light, standby and turn off the light, and display the system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module controls the UV light source to turn on, turn off, standby, and turn off the light through the TX and RX ports; The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively.

5. The method according to claim 4, characterized in that: The B port of U3 is also connected to the resistor R10, and the A port is connected to the other end of the resistor R10. One end of the resistor R10 is connected to the resistor R8, the diode D6 and the diode D5. The other end of the resistor R8 is grounded. The other end of the diode D5 is grounded. The other end of the resistor R10 is connected to the other end of D6, the resistor R9 and the diode D7. The other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded. Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

6. The method according to claim 1, characterized in that: If the actual light intensity value cannot be adjusted to the preset value range by PID adjusting the output power for more than a predetermined number of times, a warning message will be output and the light will be turned off.

7. A closed-loop controlled UV curing device, characterized in that: The device comprises: The acquisition module is used to acquire the actual light intensity value and transmit the actual light intensity value back to the UV light source controller. The adjustment module is used for responding to obtaining a preset output power. The UV light source controller controls the UV light source to turn on the light based on the preset output power, and is used to detect whether the actual light intensity value reaches the preset value range. If not, the output power is adjusted through PID until the actual light intensity value is adjusted to the preset value range.

8. The device according to claim 7, characterized in that: If the actual light intensity value cannot be adjusted to the preset value range by PID adjusting the output power for more than a predetermined number of times, a warning message will be output and the light will be turned off.

9. A closed-loop control system for ultraviolet curing, characterized in that: The system comprises: The device according to any one of claims 7 to 8, wherein the power supply, the touch screen or the remote control terminal are respectively connected to the UV light source controller module, The power supply provides power to the UV light source controller module. The touch screen or remote control terminal is used to set the preset output power value. The UV light source controller module is connected to the touch screen and the UV light source module via an RS-485 communication circuit.

10. The system according to claim 9, characterized in that The system comprises: The RS-485 communication circuit includes: in the UV light source controller, the CPU2 on the control main board is connected to the touch screen, the remote control module, and the U3 module respectively, wherein the VCC port of the CPU2 is connected to the VCC port of the touch screen, the GND port is connected to the GND port of the touch screen, the TX1 port is connected to the RX port of the touch screen, and the RX1 port is connected to the TX port of the touch screen. The touch screen communicates with the main control board through the TX and RX ports to control the UV light source to turn on the headlight, turn off the light, standby and turn off the light, and display the system parameters in real time; The TX2 port of CPU2 is connected to the RX port of the remote control module, and RX2 is connected to the TX port. The remote control module controls the UV light source to turn on, turn off, standby, and turn off the light through the TX and RX ports; The TX port of CPU2 is connected to the RXD port of U3 module, the 485EN port is connected to the RE port and DE port of U3 module, and the RX port is connected to the TXD port of U3 module for communication with U3 module; The VDD1 port of the U3 module is connected to VCC to power the module, the GND1 port is connected to GND, and a capacitor C6 is connected between VCC and GND for filtering. The PV port is connected to resistor R13, and resistor R13 is connected to VCC. GND1 is grounded, the VDD2 port is connected to VCC, the GND2 port is connected to GND, and a capacitor C5 is connected between VCC and GND for filtering. The CPU1 of the light detection board inside the UV light source is connected to the operational amplifier U2 and the U1 module respectively, the ADC IN port of the CPU1 is connected to the capacitor C3 and the resistor R4, the other end of the capacitor C3 is grounded for filtering, the other end of R4 is connected to the resistor R5 and the port 1 of the operational amplifier U2, the other end of the resistor R5 is connected to the resistor R6, the capacitor C4 and the resistor R7, the other end of the resistor R6 is connected to GND, the other end of the resistor R7 is connected to the capacitor C4, the port 4 of U2 and the photosensor D4, and the other end of the photosensor D4 is connected to the port 3 of U2 and GND; The RX port of CPU1 is connected to the DI port of U1, the 485EN port is connected to the DE port and RE port of U1, and the TX port is connected to the RO port of U1 for communication with U1. The VCC port of U1 is connected to VCC for power supply. Capacitors C1 and C2 are connected between VCC and GND for filtering. Capacitors C1 and C2 are connected in parallel. The GND port of U1 is connected to GND. Among them, the A port and B port of U1 are connected to the A port and B port of U3 respectively; The B port of U3 is also connected to the resistor R10, and the A port is connected to the other end of the resistor R10. One end of the resistor R10 is connected to the resistor R8, the diode D6 and the diode D5. The other end of the resistor R8 is grounded. The other end of the diode D5 is grounded. The other end of the resistor R10 is connected to the other end of D6, the resistor R9 and the diode D7. The other end of the resistor R9 is connected to VCC, and the other end of the diode D7 is grounded. Port A of U1 is also connected to resistor R1, resistor R2, diode D1 and diode D2. The other end of resistor R1 is connected to VCC, and the other end of diode D1 is connected to GND. Port B of U1 is connected to resistor R3, the other end of resistor R2, the other end of diode D2 and diode D3. The other end of diode D3 is connected to GND, and the other end of resistor R3 is connected to GND.

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