Vector lens zoom dimming control method

Abstract

The present application provides a method for controlling zoom dimming of a vector lens. The method includes obtaining a zoom dimming carrier signal and a zoom dimming phasing signal; performing packet conversion processing on the zoom dimming carrier signal and the zoom dimming phasing signal to obtain a zoom dimming modulation envelope signal; sending the zoom dimming modulation envelope signal to a vector lens zoom controller, and adjusting the duty cycle of the zoom dimming carrier signal to adjust the beam angle of the vector lens. By collecting the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to collect the carrier signal and the phasing signal of the vector lens, and then perform packet conversion processing on the above two signals, and finally input the deflection voltage corresponding to the zoom dimming modulation envelope signal into the vector lens. The beam angle of the vector lens can be adjusted by simply adjusting the duty cycle of the zoom dimming carrier signal, which effectively reduces the difficulty of adjusting the beam angle of the vector lens.

Description

Technical Field

[0001] The present invention relates to the field of dimming technology, and in particular to a vector lens zoom dimming control method. Background Art

[0002] The development of the industry's intelligent lighting system has evolved from the basic dimming and color temperature control through linear or logarithmic curves to the use of miniaturized brushless motor devices in recent years to change the illumination direction of the lamp body. Intelligent lighting control technology is becoming more and more mature, and it is convenient and easy for general users to achieve more accurate and sophisticated light control. With the rapid development of molecular material technology, dynamic beam shaping lens products that can electronically control and adjust the focal length have been derived for the lighting industry. The dynamic beam is shaped by electrical signals to adjust the beam angle, for example, the Chinese patent application with application number CN201080064482.7.

[0003] However, the traditional zoom lens still uses voltage control similar to that of liquid crystal molecules, that is, the voltage of the output control signal for flipping the liquid crystal molecules is increased or decreased, resulting in the need to select corresponding and different control signals at different beam angles, which makes it difficult to control the beam angle of the zoom lens and is not conducive to the rapid adjustment of the beam angle. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a vector lens zoom dimming control method that effectively reduces the difficulty of beam angle adjustment.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A vector lens zoom dimming control method, the method comprising:

[0007] Obtaining a zoom dimming carrier signal and a zoom dimming phasing signal;

[0008] Performing packet conversion processing on the zoom dimming carrier signal and the zoom dimming phasing signal to obtain a zoom dimming modulation envelope signal;

[0009] The zoom dimming modulation envelope signal is sent to the vector lens zoom controller, and the duty cycle of the zoom dimming carrier signal is adjusted to adjust the beam angle of the vector lens.

[0010] In one embodiment, the acquiring of the zoom dimming carrier signal and the zoom dimming phasing signal includes: acquiring a high-frequency zoom dimming pulse width modulation fundamental signal, a first low-frequency zoom dimming pulse width modulation signal, and a second low-frequency zoom dimming pulse width modulation signal.

[0011] In one of the embodiments, the frequency of the high-frequency zoom dimming pulse width modulation fundamental wave signal is 20KHZ to 100KHZ.

[0012] In one embodiment, a phase difference between the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal is 90°.

[0013] In one embodiment, the frequency of the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are equal to each other and are 50 Hz.

[0014] In one embodiment, the packet conversion processing of the zoom dimming carrier signal and the zoom dimming phasing signal to obtain the zoom dimming modulation envelope signal includes: inverting the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal to obtain a first low-frequency inverted signal and a second low-frequency inverted signal, wherein the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal constitute a first envelope signal, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal constitute a second envelope signal.

[0015] In one embodiment, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted to obtain a first low-frequency inverted signal and a second low-frequency inverted signal, and then it also includes: based on the high-frequency zoom dimming pulse width modulation fundamental signal, the first envelope signal and the second envelope signal are respectively processed by AND gate logic to obtain a first AND gate modulated envelope signal and a second AND gate modulated envelope signal.

[0016] In one embodiment, based on the high-frequency zoom dimming pulse width modulation fundamental wave signal, the first envelope signal and the second envelope signal are respectively processed by AND gate logic to obtain a first AND gate modulated envelope signal and a second AND gate modulated envelope signal, and then it also includes: performing low-pass filtering processing on the first AND gate modulated envelope signal and the second AND gate modulated envelope signal to obtain a first low-pass modulated envelope signal and a second low-pass modulated envelope signal.

[0017] In one embodiment, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are low-pass filtered to obtain a first low-pass modulated envelope signal and a second low-pass modulated envelope signal, and then the first low-pass modulated envelope signal and the second low-pass modulated envelope signal are operationally amplifier processed to obtain the zoom dimming modulated envelope signal.

[0018] In one of the embodiments, the beam angle of the vector lens is 5° to 55°.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] By collecting the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to collect the carrier signal and the phasing signal of the vector lens, and then perform packet conversion processing on the above two signals to form an envelope signal for control by superimposing the zoom dimming carrier signal and the zoom dimming phasing signal. Finally, the deflection voltage corresponding to the zoom dimming modulated envelope signal is input into the vector lens, so as to adjust the deflection angle of the liquid crystal molecules in the vector lens. There is no need to use multiple control signals for multiple beam angles. Only the duty cycle of the zoom dimming carrier signal needs to be adjusted to achieve the adjustment of the beam angle of the vector lens, which effectively reduces the difficulty of adjusting the beam angle of the vector lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 Flow chart of a vector lens zoom dimming control method in one embodiment;

[0023] Figure 2 for Figure 1 A schematic diagram of a signal curve after gate logic processing in the vector lens zoom dimming control method shown;

[0024] Figure 3 for Figure 1 A schematic diagram of a signal curve after low-pass filtering in the vector lens zoom dimming control method shown;

[0025] Figure 4 for Figure 1 The schematic diagram of the signal curve after the operational amplifier processing in the vector lens zoom dimming control method shown;

[0026] Figure 5 FIG. 4 is a circuit diagram of a vector lens for adjusting focus and color temperature in one embodiment. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present invention relates to a vector lens zoom dimming control method. In one embodiment, the vector lens zoom dimming control method includes acquiring a zoom dimming carrier signal and a zoom dimming phasing signal; performing packet conversion processing on the zoom dimming carrier signal and the zoom dimming phasing signal to obtain a zoom dimming modulation envelope signal; sending the zoom dimming modulation envelope signal to a vector lens zoom controller, and adjusting the duty cycle of the zoom dimming carrier signal to adjust the beam angle of the vector lens. .

[0031] See also Figure 1 , which is a flow chart of a vector lens zoom dimming control method according to an embodiment of the present invention. The vector lens zoom dimming control method includes part or all of the following steps.

[0032] S100: Acquire a zoom dimming carrier signal and a zoom dimming phasing signal.

[0033] In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By respectively acquiring the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens.

[0034] S200: Perform packet conversion on the zoom dimming carrier signal and the zoom dimming phasing signal to obtain a zoom dimming modulation envelope signal.

[0035] In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By respectively acquiring the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to form a signal for controlling the beam angle of the vector lens, thereby facilitating the adjustment of the beam angle through the zoom dimming modulation envelope signal.

[0036] S300: Sending the zoom dimming modulation envelope signal to the vector lens zoom controller, and adjusting the duty cycle of the zoom dimming carrier signal to adjust the beam angle of the vector lens.

[0037] In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By respectively acquiring the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to facilitate the subsequent formation of a signal for controlling the beam angle of the vector lens, thereby facilitating the adjustment of the beam angle through the zoom dimming modulation envelope signal. The control amount in the zoom dimming modulation envelope signal is output to the vector lens zoom controller. After adjusting the duty cycle of the zoom dimming carrier signal, it is convenient to adjust the control amount in the zoom dimming modulation envelope signal, thereby facilitating the adjustment of the light speed angle control intensity output by the vector lens zoom controller, and then facilitating the control of the beam angle of the vector lens through the vector lens zoom controller, so that the light output angle change of the vector lens can be achieved through the duty cycle of the zoom dimming carrier signal.

[0038] In the above embodiment, the carrier signal and the phasing signal of the vector lens are collected by the zoom dimming carrier signal and the zoom dimming phasing signal, and then the two signals are subjected to packet conversion processing to form an envelope signal for control by superimposing the zoom dimming carrier signal and the zoom dimming phasing signal. Finally, the deflection voltage corresponding to the zoom dimming modulated envelope signal is input into the vector lens, so as to adjust the deflection angle of the liquid crystal molecules in the vector lens. There is no need to use multiple control signals for multiple beam angles. Only the duty cycle of the zoom dimming carrier signal needs to be adjusted to achieve adjustment of the beam angle of the vector lens, thereby effectively reducing the difficulty of adjusting the beam angle of the vector lens.

[0039] In one embodiment, the acquisition of the zoom dimming carrier signal and the zoom dimming phasing signal includes: acquiring a high-frequency zoom dimming pulse width modulation fundamental signal, a first low-frequency zoom dimming pulse width modulation signal, and a second low-frequency zoom dimming pulse width modulation signal. In this embodiment, the zoom dimming carrier signal is a fundamental signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is a basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is a reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is a harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is a secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is a zoom control signal for the vector lens to adjust the beam angle. By respectively acquiring the zoom dimming carrier signal and the zoom dimming phasing signal, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount of the beam angle control of the vector lens. The zoom dimming carrier signal is a high-frequency zoom dimming pulse width modulation fundamental wave signal, and the zoom dimming phasing signal includes a first low-frequency zoom dimming pulse width modulation signal and a second low-frequency zoom dimming pulse width modulation signal. The first low-frequency zoom dimming pulse width modulation signal is the first low-frequency signal for the vector lens to adjust the beam angle, and the second low-frequency zoom dimming pulse width modulation signal is the second low-frequency signal for the vector lens to adjust the beam angle. The first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are both based on the high-frequency zoom dimming pulse width modulation fundamental wave signal to generate corresponding control envelope signals, so that the beam angle of the vector lens can be changed by adjusting the high-frequency zoom dimming pulse width modulation fundamental wave signal. In another embodiment, the single-chip microcomputer supports 16-bit PWM duty cycle output and advanced timer phase-shift PWM generation. An independent timer can provide two different frequency outputs at the same time. The single-chip microcomputer can also transparently transmit with the wireless module serial port protocol, support the expansion of multi-platform wireless module solutions, access APP and AI voice control, and facilitate the generation of high-frequency zoom dimming pulse width modulation fundamental wave signal, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal.

[0040] In another embodiment, the frequency of the high-frequency zoom dimming pulse width modulation fundamental signal is 20KHZ to 100KHZ, and the frequency of the first low-frequency zoom dimming pulse width modulation signal is equal to that of the second low-frequency zoom dimming pulse width modulation signal and is 50HZ. By controlling the output of the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal under the high-frequency fundamental signal of the high-frequency zoom dimming pulse width modulation fundamental signal, it is convenient to adjust the beam angle of the vector lens.

[0041] In another embodiment, the phase difference between the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal is 90°. The first low-frequency zoom dimming pulse width modulation signal is the first low-frequency signal for the vector lens to adjust the beam angle, and the second low-frequency zoom dimming pulse width modulation signal is the second low-frequency signal for the vector lens to adjust the beam angle. By changing the phase of the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal, it is convenient to provide two control signals with phase difference for the beam angle control of the vector lens. In another embodiment, the first low-frequency zoom dimming pulse width modulation signal is a low-frequency pulse width modulation signal of 50HZ, and the second low-frequency zoom dimming pulse width modulation signal is a low-frequency pulse width modulation signal of 50HZ with a rising edge phase shift of 90°.

[0042] In one embodiment, the zoom dimming carrier signal and the zoom dimming phasing signal are subjected to packet conversion processing to obtain a zoom dimming modulation envelope signal, including: respectively inverting the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal to obtain a first low-frequency inverted signal and a second low-frequency inverted signal, wherein the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal constitute a first envelope signal, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal constitute a second envelope signal. In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is a harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is a secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is a zoom control signal for the vector lens to adjust the beam angle. By acquiring the zoom dimming carrier signal and the zoom dimming phasing signal respectively, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to facilitate the subsequent formation of a signal for controlling the beam angle of the vector lens, so as to facilitate the adjustment of the beam angle through the zoom dimming modulation envelope signal. The first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted. Specifically, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively passed through an inverter to form two inverted pulse width modulation signals again, that is, the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal are two identical signals with a phase difference of 180°, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal are also two identical signals with a phase difference of 180°. In this way, the first envelope signal and the second envelope signal are both two opposite pulse width adjustment signals, and there is also a 90° phase difference between the first envelope signal and the second envelope signal, which is convenient for forming two groups of different control signals, thereby facilitating the adjustment of the beam angle of the vector lens through the above four envelope signals.

[0043] Further, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted to obtain a first low-frequency inverted signal and a second low-frequency inverted signal, and then further includes: based on the high-frequency zoom dimming pulse width modulation fundamental wave signal, the first envelope signal and the second envelope signal are respectively processed by AND gate logic to obtain a first AND gate modulated envelope signal and a second AND gate modulated envelope signal. In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By acquiring the zoom dimming carrier signal and the zoom dimming phasing signal respectively, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to facilitate the subsequent formation of a signal for controlling the beam angle of the vector lens, so as to facilitate the adjustment of the beam angle through the zoom dimming modulation envelope signal. The first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted. Specifically, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively passed through an inverter to form two inverted pulse width modulation signals again, that is, the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal are two identical signals with a phase difference of 180°, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal are also two identical signals with a phase difference of 180°. In this way, the first envelope signal and the second envelope signal are both two opposite pulse width adjustment signals, and there is also a 90° phase difference between the first envelope signal and the second envelope signal, which is convenient for forming two groups of different control signals, thereby facilitating the adjustment of the beam angle of the vector lens through the above four envelope signals.In the case where the high-frequency zoom dimming pulse width modulation fundamental wave signal is used as the reference signal, the first envelope signal is passed through an AND gate logic operation circuit to obtain the first AND gate modulated envelope signal, and the second envelope signal is passed through an AND gate logic operation circuit to obtain the second AND gate modulated envelope signal, so as to facilitate the superposition operation of the first envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the first AND gate modulated envelope signal, and the superposition operation of the second envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the second AND gate modulated envelope signal, see the attachment for details. Figure 2 , thereby facilitating the logic gate control of the first envelope signal and the second envelope signal, and further facilitating the formation of the required control signal for adjusting the beam angle of the vector lens.

[0044] Furthermore, based on the high-frequency zoom dimming pulse width modulation fundamental wave signal, the first envelope signal and the second envelope signal are respectively processed by AND gate logic to obtain a first AND gate modulated envelope signal and a second AND gate modulated envelope signal, and then the method further includes: performing low-pass filtering on the first AND gate modulated envelope signal and the second AND gate modulated envelope signal to obtain a first low-pass modulated envelope signal and a second low-pass modulated envelope signal. In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By acquiring the zoom dimming carrier signal and the zoom dimming phasing signal respectively, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to facilitate the subsequent formation of a signal for controlling the beam angle of the vector lens, so as to facilitate the adjustment of the beam angle through the zoom dimming modulation envelope signal. The first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted. Specifically, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively passed through an inverter to form two inverted pulse width modulation signals again, that is, the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal are two identical signals with a phase difference of 180°, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal are also two identical signals with a phase difference of 180°. In this way, the first envelope signal and the second envelope signal are both two opposite pulse width adjustment signals, and there is also a 90° phase difference between the first envelope signal and the second envelope signal, which is convenient for forming two groups of different control signals, thereby facilitating the adjustment of the beam angle of the vector lens through the above four envelope signals.In the case where the high-frequency zoom dimming pulse width modulation fundamental wave signal is the reference signal, the first envelope signal is passed through an AND gate logic operation circuit to obtain the first AND gate modulated envelope signal, and the second envelope signal is passed through an AND gate logic operation circuit to obtain the second AND gate modulated envelope signal, so as to facilitate the superposition operation of the first envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the first AND gate modulated envelope signal, and the superposition operation of the second envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the second AND gate modulated envelope signal, thereby facilitating the logic gate control of the first envelope signal and the second envelope signal, and then facilitating the formation of the required control signal for adjusting the beam angle of the vector lens. The first AND gate modulated envelope signal and the second AND gate modulated envelope signal are signals obtained after the AND gate logic operation, and then low-pass filtering is performed. Specifically, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal pass through a low-pass filtering circuit, as shown in the attachment for details. Figure 3 , so as to filter the first AND gate modulated envelope signal and the second AND gate modulated envelope signal, so that the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are the required specified low-frequency signals, thereby facilitating the formation of a fixed-frequency amplitude modulation signal of a specified frequency, for example, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are 0~3.3V fixed-frequency amplitude modulation signals.

[0045] Further, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are respectively subjected to low-pass filtering to obtain a first low-pass modulated envelope signal and a second low-pass modulated envelope signal, and then further comprises: performing operational amplifier processing on the first low-pass modulated envelope signal and the second low-pass modulated envelope signal to obtain the zoom dimming modulated envelope signal. In this embodiment, the zoom dimming carrier signal is the fundamental wave signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the basic signal for the vector lens to adjust the beam angle, that is, the zoom dimming carrier signal is the reference processing signal for the vector lens to adjust the beam angle. The zoom dimming phasing signal is the harmonic signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the secondary signal for the vector lens to adjust the beam angle, that is, the zoom dimming phasing signal is the zoom control signal for the vector lens to adjust the beam angle. By acquiring the zoom dimming carrier signal and the zoom dimming phasing signal respectively, it is convenient to sample the main control signal in the process of adjusting the beam angle of the vector lens, so as to facilitate the subsequent driving of the beam angle adjustment of the vector lens, thereby reducing the signal collection amount for the beam angle control of the vector lens. The zoom dimming carrier signal and the zoom dimming phasing signal are processed by packet conversion to integrate the two signals, so as to facilitate the subsequent formation of a signal for controlling the beam angle of the vector lens, so as to facilitate the adjustment of the beam angle through the zoom dimming modulation envelope signal. The first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively inverted. Specifically, the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively passed through an inverter to form two inverted pulse width modulation signals again, that is, the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal are two identical signals with a phase difference of 180°, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal are also two identical signals with a phase difference of 180°. In this way, the first envelope signal and the second envelope signal are both two opposite pulse width adjustment signals, and there is also a 90° phase difference between the first envelope signal and the second envelope signal, which is convenient for forming two groups of different control signals, thereby facilitating the adjustment of the beam angle of the vector lens through the above four envelope signals.In the case where the high-frequency zoom dimming pulse width modulation fundamental wave signal is used as the reference signal, the first envelope signal is passed through an AND gate logic operation circuit to obtain the first AND gate modulated envelope signal, and the second envelope signal is passed through an AND gate logic operation circuit to obtain the second AND gate modulated envelope signal, so as to facilitate the superposition operation of the first envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the first AND gate modulated envelope signal, and the superposition operation of the second envelope signal and the high-frequency zoom dimming pulse width modulation fundamental wave signal to obtain the second AND gate modulated envelope signal, thereby facilitating the logic gate control of the first envelope signal and the second envelope signal, and further facilitating the formation of the required control signal for adjusting the beam angle of the vector lens. The first AND gate modulated envelope signal and the second AND gate modulated envelope signal are signals obtained after AND gate logic operation, and then low-pass filtering is performed. Specifically, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal pass through a low-pass filtering circuit to facilitate filtering of the first AND gate modulated envelope signal and the second AND gate modulated envelope signal, so that the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are the required specified low-frequency signals, thereby facilitating the formation of a fixed-frequency amplitude modulation signal of a specified frequency. For example, the first AND gate modulated envelope signal and the second AND gate modulated envelope signal are 0-3.3V fixed-frequency amplitude modulation signals. In this way, the first low-pass modulation envelope signal and the second low-pass modulation envelope signal are then subjected to operational amplifier processing. Specifically, the first low-pass modulation envelope signal and the second low-pass modulation envelope signal are passed through an in-phase proportional operation circuit to facilitate amplifying the amplitudes of the first low-pass modulation envelope signal and the second low-pass modulation envelope signal, so that the signal amplitude corresponding to the zoom dimming modulation envelope signal is increased. For example, the zoom dimming modulation envelope signal is a signal obtained by amplifying the amplitudes of the first low-pass modulation envelope signal and the second low-pass modulation envelope signal. The zoom dimming modulation envelope signal is two groups of phase-shifted amplitude modulation signals. See the attachment for details. Figure 4 ,, and the amplitude modulation function in the zoom dimming modulation envelope signal is realized by the duty cycle of the zoom dimming carrier signal, that is, by adjusting the duty cycle of the high-frequency zoom dimming pulse width modulation fundamental signal, it is convenient to adjust the amplitude modulation function of the two groups of phase shift signals received by the vector lens zoom controller, so as to facilitate changing the deflection angle of the liquid crystal molecules in the vector lens, and then facilitate the deflection adjustment of the liquid crystal molecules in the two vertical directions in the vector lens to achieve the adjustment of the beam angle of the vector lens. Among them, the zoom dimming modulation envelope signal is two groups of phase shift signals, each group of phase shift signals is two opposite signals, and the amplitudes of the two signals are controlled at 0~20V, that is, the signal voltage difference of each group of phase shift signals is ±20V.

[0046] In another embodiment, the beam angle of the vector lens is 5° to 55°, wherein the beam angle corresponds one-to-one to the duty cycle of the zoom dimming carrier signal. For example, when the duty cycle of the zoom dimming carrier signal is 50%, the beam angle of the vector lens is 30°, which is convenient for providing multi-angle beam angles for the vector lens.

[0047] In the actual adjustment process of the beam angle of the vector lens, the beam angle of the vector lens is changed according to the duty cycle of the zoom dimming carrier signal, that is, the light output angle of the vector lens is controlled by the duty cycle of the zoom dimming carrier signal, so that the light output size and range of the vector lens can be adjusted by changing the duty cycle of the zoom dimming carrier signal. However, after the adjustment of the beam angle of the vector lens is completed, the color temperature of the mixed light source needs to be adjusted again, resulting in more operating steps. Moreover, when the beam angle is small, which is generally suitable for a soothing environment, the operator needs to reset the color temperature according to the site, resulting in poor convenience of use.

[0048] In order to facilitate synchronous focus adjustment and color temperature adjustment, the zoom dimming modulation envelope signal is sent to the vector lens zoom controller, and the duty cycle of the zoom dimming carrier signal is adjusted to adjust the beam angle of the vector lens, and the following steps are also included:

[0049] Acquiring a gas flow rate sensing value of the vector lens;

[0050] Detecting whether the gas flow rate sensor value is less than or equal to a preset flow rate;

[0051] When the gas flow rate sensor value is less than or equal to the preset flow rate, obtaining the ambient light brightness of the vector lens;

[0052] Detecting whether the ambient light brightness is less than or equal to a preset light brightness;

[0053] When the ambient light illuminance is less than or equal to the preset light illuminance, a duty cycle reduction signal is sent to the vector lens zoom controller to adjust the duty cycle of the zoom dimming carrier signal to a low duty cycle to reduce the beam angle and color temperature of the vector lens.

[0054] In this embodiment, the gas flow rate sensor is the gas flow rate of the environment in which the vector lens is located, that is, the gas flow rate sensor is the speed of the air flow in the environment in which the vector lens is located, that is, the gas flow rate sensor corresponds to the wind speed in the environment in which the vector lens is located. The gas flow rate sensor is less than or equal to the preset flow rate, indicating that the air flow rate in the environment in which the vector lens is located is relatively low, that is, indicating that the vector lens is in a low wind environment. At this time, the ambient light brightness of the vector lens is to obtain the light in the environment in which the vector lens is located, and also to determine the brightness of the environment of the vector lens, so as to facilitate the determination of the environment in which the vector lens is currently located. The ambient light brightness is less than or equal to the preset light brightness, indicating that the environment in which the vector lens is located is an environment with low wind speed and low brightness, that is, the environment in which the vector lens is located is a relatively soothing environment, for example, museums and exhibition halls focus on lighting sculptures, artworks or paintings. In order to match the current environment, a duty cycle reduction signal is sent to the vector lens zoom controller to adjust the duty cycle of the zoom dimming carrier signal to a low duty cycle to reduce the beam angle and color temperature of the vector lens. The beam angle of the vector lens corresponds to the color temperature, that is, when the beam angle of the vector lens is reduced, the color temperature of the vector lens is also reduced, so that by reducing the duty cycle of the zoom dimming carrier signal, the beam angle and color temperature can be reduced together, so that the beam angle of the light output by the vector lens is a small range of beam angles, for example, the light speed angle is 5° to 12°, and the light is warm light, which is more adapted to the environment in which the vector lens is located, and there is no need to adjust the beam angle and color temperature of the vector lens twice.

[0055] Furthermore, the detecting whether the gas flow rate sensor value is less than or equal to a preset flow rate further includes:

[0056] When the gas flow rate sensor value is greater than the preset flow rate, obtaining the ambient illumination height of the vector lens;

[0057] Detecting whether the ambient irradiation height is greater than or equal to a preset irradiation height;

[0058] When the ambient illumination height is greater than or equal to the preset illumination height, a duty cycle increase signal is sent to the vector lens zoom controller to adjust the duty cycle of the zoom dimming carrier signal to a high duty cycle to increase the beam angle and color temperature of the vector lens.

[0059] In this embodiment, the gas flow rate sensor is the gas flow rate of the environment in which the vector lens is located, that is, the gas flow rate sensor is the speed of the air flow in the environment in which the vector lens is located, that is, the gas flow rate sensor corresponds to the wind speed in the environment in which the vector lens is located. The gas flow rate sensor is greater than the preset flow rate, indicating that the air flow rate in the environment in which the vector lens is located is relatively high, that is, it indicates that the vector lens is in a fast wind environment. At this time, the environmental illumination height of the vector lens is to obtain the height of the environment in which the vector lens is located, and also to determine the environmental position of the vector lens, so as to facilitate the determination of the environment in which the vector lens is currently located. The environmental illumination height is greater than the preset illumination height, indicating that the environment in which the vector lens is located is an environment with high wind speed and high position, that is, the environment in which the vector lens is located is a relatively open environment, for example, stadiums, subways, airports, public buildings, etc. require a transparent and bright lighting environment. In order to match the current environment, a duty cycle increase signal is sent to the vector lens zoom controller to adjust the duty cycle of the zoom dimming carrier signal to a high duty cycle to increase the beam angle and color temperature of the vector lens. The beam angle of the vector lens corresponds to the color temperature, that is, when the beam angle of the vector lens increases, the color temperature of the vector lens is also increased, so that by increasing the duty cycle of the zoom dimming carrier signal, the beam angle and color temperature can be improved together, so that the beam angle of the light output by the vector lens is a wide range of beam angles, for example, the light speed angle is 48° to 55°, and the light is a cold color light, which is convenient for providing a wide range and far-penetrating irradiation light, which is more adapted to the environment in which the vector lens is located, and there is no need to adjust the beam angle and color temperature of the vector lens twice.

[0060] In another embodiment, the signals generated by the focus adjustment and color temperature adjustment of the vector lens and the corresponding processing circuit are shown in the attached Figure 5. Among them, U1 is a single-chip microcomputer device with multiple timers and advanced phase shift output functions, which can simultaneously output two PWM signals with different frequencies and settable phases, namely, a high-frequency zoom dimming pulse width modulation fundamental signal, a first low-frequency zoom dimming pulse width modulation signal and a second low-frequency zoom dimming pulse width modulation signal; U3 and U4 are inverters, which are used to invert the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal respectively; U2A to U2D are AND gate logic operation circuits, which are used to perform AND gate logic processing on the first envelope signal and the second envelope signal respectively; R2, C3 and C4 form a low-pass filter circuit, which is used to perform low-pass filter processing on the first AND gate modulated envelope signal and the second AND gate modulated envelope signal respectively; U7 is four independent high-gain frequency compensation logic operational amplifiers, wherein amplifier 1 and peripheral circuit R13, R9 and R10 form a common-phase proportional operation circuit, which is used to perform operational amplifier processing on the first low-pass modulated envelope signal and the second low-pass modulated envelope signal respectively.

[0061] The color temperature phase-cut circuit is composed of a level amplifier composed of triodes and a MOS phase-cut circuit. Taking the fundamental wave PWM1 as the input signal, that is, the high-frequency zoom dimming pulse width modulation fundamental wave signal, R30, R28 and Q6 play the role of standby balanced leakage current, avoiding the situation where the leakage current is inconsistent in the cold color temperature and warm color temperature states when the light source is turned off. R26, R27, R29, D3, Q2 and Q5 play the role of cold color temperature level amplification and conversion, so that the PWM1 3.3V signal is amplified to 15V, and the output ground AGND is used as the reference ground; similarly, R24, R25, D2, Q1 and Q4 are the level amplification and conversion of the warm color temperature circuit. D1, Q3 and R23 are cold color temperature MOS phase-cutting circuits, where D1 and the preceding R27 divide the 15V voltage to stabilize the PWM signal of Q3 Vgs at 12V, keep the device at an appropriate operating voltage, and effectively reduce Rds(on) in the high-level on state; R23 acts on the dummy load to provide an effective load current branch under no-load and light-load conditions to prevent the front-stage DC / DC circuit from entering a false protection state; similarly, D4, Q7 and R31 are warm color temperature MOS phase-cutting circuits, and the final output is connected to the positive and negative poles of the cold and warm circuits of the light source.

[0062] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vector lens zoom dimming control method, characterized in that: include: Acquire a zoom dimming carrier signal and a zoom dimming phasing signal, wherein the zoom dimming carrier signal is a high-frequency zoom dimming pulse width modulation fundamental wave signal, and the zoom dimming phasing signal includes a first low-frequency zoom dimming pulse width modulation signal and a second low-frequency zoom dimming pulse width modulation signal; The zoom dimming carrier signal and the zoom dimming phasing signal are subjected to packet conversion processing to obtain a zoom dimming modulation envelope signal, specifically comprising the following steps: the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal are respectively subjected to inversion processing to obtain a first low-frequency inverted signal and a second low-frequency inverted signal, wherein the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal form a first envelope signal, and the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal form a second envelope signal; Based on the high-frequency zoom dimming pulse width modulation fundamental wave signal, the first envelope signal and the second envelope signal are respectively subjected to AND gate logic processing to obtain a first AND gate modulated envelope signal and a second AND gate modulated envelope signal, wherein the AND gate logic processing of the first envelope signal is that the high-frequency zoom dimming pulse width modulation fundamental wave signal is respectively subjected to AND gate logic operation with the first low-frequency zoom dimming pulse width modulation signal and the first low-frequency inverted signal, and the AND gate logic processing of the second envelope signal is that the high-frequency zoom dimming pulse width modulation fundamental wave signal is respectively subjected to AND gate logic operation with the second low-frequency zoom dimming pulse width modulation signal and the second low-frequency inverted signal; Performing low-pass filtering processing on the first AND gate modulated envelope signal and the second AND gate modulated envelope signal respectively to obtain a first low-pass modulated envelope signal and a second low-pass modulated envelope signal; Performing operational amplifier processing on the first low-pass modulation envelope signal and the second low-pass modulation envelope signal respectively to obtain the zoom dimming modulation envelope signal; The zoom dimming modulation envelope signal is sent to the vector lens zoom controller, and the duty cycle of the zoom dimming carrier signal is adjusted to adjust the beam angle of the vector lens.

2. The vector lens zoom dimming control method according to claim 1, characterized in that: The frequency of the high-frequency zoom dimming pulse width modulation fundamental wave signal is 20KHZ to 100KHZ.

3. The vector lens zoom dimming control method according to claim 1, characterized in that: The phase difference between the first low-frequency zoom dimming pulse width modulation signal and the second low-frequency zoom dimming pulse width modulation signal is 90°.

4. The vector lens zoom dimming control method according to claim 1, characterized in that: The frequency of the first low-frequency zoom dimming pulse width modulation signal is equal to that of the second low-frequency zoom dimming pulse width modulation signal and is 50 Hz.

5. The vector lens zoom dimming control method according to claim 1, characterized in that: The beam angle of the vector lens is 5° to 55°.

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