阅读说明：本技术 免老化控制系统及光功率自动调节的方法、存储介质 (Aging-free control system, method for automatically adjusting optical power and storage medium ) 是由 王兴红 邹海涛 于 2020-11-30 设计创作，主要内容包括：本发明公开了免老化控制系统及光功率自动调节的方法、存储介质,本发明旨在通过监控到激光器输出光功率效率发生变化时,通过调节功率可调驱动电路来驱动电流从而调节光功率,避免光功率随使用时间而变化,节省能耗,同时光功率无法达到预设功率阈值时,还可以通过增益可调放大电路来增益光电信号的幅度,以使信号接收机接收到信号大小基本不变,从而最大限度延长激光器寿命,延长使用时间。(The invention discloses an aging-free control system, a method for automatically adjusting optical power and a storage medium, and aims to adjust the optical power by adjusting a power adjustable driving circuit to drive current when the output optical power efficiency of a laser changes, so that the optical power is prevented from changing along with the use time, the energy consumption is saved, and meanwhile, when the optical power cannot reach a preset power threshold, the amplitude of a photoelectric signal can be increased through an adjustable gain amplifying circuit, so that the size of the signal received by a signal receiver is basically unchanged, the service life of the laser is prolonged to the maximum extent, and the use time is prolonged.)

1. The aging-free control system is characterized by comprising a controller, a power adjustable driving circuit, a transmitting light source, a receiving light source and a gain adjustable amplifying circuit;

the power adjustable driving circuit is used for receiving current control of the controller so as to enable the light power of the light emitted by the emission light source to be equal to a preset power threshold value;

the gain adjustable amplifying circuit is used for receiving the gain control of the controller after the optical power of the light emitted by the emitting light source is not equal to a preset power threshold value, so that the amplitude of the adjusted photoelectric signal is equal to a preset amplitude threshold value.

2. The burn-in free control system of claim 1, wherein the emission light source is a laser or a light emitting diode.

3. The burn-in free control system of claim 2, wherein the laser comprises a laser light and a laser diode, the laser diode connected to the laser light.

4. The burn-in free control system of claim 3, wherein the laser diode is integrally formed with the laser light.

5. The burn-in free control system of claim 3, wherein the laser diode is disposed separately from the laser light.

6. The burn-in free control system of claim 1, wherein the receiving light source is a photodiode.

7. A method for automatically adjusting optical power, which is applied to the aging-free control system as claimed in any one of claims 1-6, wherein the method comprises:

acquiring the optical power of the transmitting light source and the amplitude of the signal of the receiving light source;

if the optical power of the light emitted by the emission light source is not equal to the preset power threshold, the controller adjusts the optical power of the emission light source through the power-adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold;

if the adjusted optical power is not equal to the preset power threshold, the controller adjusts the amplitude of the photoelectric signal emitted by the receiving light source through the gain-adjustable amplifying circuit, so that the adjusted amplitude of the photoelectric signal is equal to the preset amplitude threshold.

8. The method according to claim 7, wherein if the optical power of the light emitted by the emission light source is not equal to the preset power threshold, the controller adjusts the optical power of the emission light source through the power adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold specifically comprises:

acquiring a preset power threshold;

calculating the optical power of the light emitted by the emission light source;

if the optical power is not equal to the preset power threshold, the controller controls the laser to increase the output current of the emission light source or decrease the output current of the emission light source through the power adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold.

9. The method according to claim 7, wherein if the adjusted optical power is not equal to the preset power threshold, the controller adjusts the amplitude of the optical-electrical signal emitted by the receiving light source through the gain-adjustable amplifying circuit, so that the adjusted amplitude of the optical-electrical signal is equal to the preset amplitude threshold specifically includes:

if the adjusted optical power is not equal to the preset power threshold, acquiring a preset amplitude threshold;

acquiring a photoelectric signal sent by the receiving light source, and calculating the amplitude of the photoelectric signal;

the controller amplifies or reduces the amplitude of the photoelectric signal sent by the receiving light source through the gain-adjustable amplifying circuit, so that the amplitude of the adjusted photoelectric signal is equal to a preset amplitude threshold value.

10. A computer-readable storage medium storing one or more programs for execution by a processor to perform the steps of the method for automatic optical power adjustment according to any one of claims 7-9.

Technical Field

The present invention relates to the field of information technology, and in particular, to an aging-free control system, a method for automatically adjusting optical power, and a storage medium.

Background

When the laser is used in precision instruments, especially medical equipment, and parameters are measured by using a laser scattering and transmission method, the laser is usually subjected to aging treatment, so that the output light power of the laser is basically stable.

Due to its physical characteristics, lasers suffer from optical power variations immediately after use or after a period of use. When the laser is used in precision measurement, the variation of the optical power can significantly affect the measurement result. In order to avoid the variation of the optical power with the use time, the laser is usually aged before being used, so that the output optical power is basically stable, but the aging consumes a lot of time and energy.

Accordingly, the prior art is yet to be developed and improved.

Disclosure of Invention

Therefore, it is necessary to provide an aging-free control system, a method for automatically adjusting optical power, and a storage medium, for solving the technical problems of long time consumption and large energy consumption of the conventional aging method.

In order to achieve the purpose, the embodiment of the invention adopts the following technical scheme:

an aging-free control system comprises a controller, a power adjustable driving circuit, a transmitting light source, a receiving light source and a gain adjustable amplifying circuit;

the power adjustable driving circuit is used for receiving current control of the controller so as to enable the light power of the light emitted by the emission light source to be equal to a preset power threshold value;

the gain adjustable amplifying circuit is used for receiving the gain control of the controller after the optical power of the light emitted by the emitting light source is not equal to a preset power threshold value, so that the amplitude of the adjusted photoelectric signal is equal to a preset amplitude threshold value.

The aging-free control system is characterized in that the emission light source is a laser or a light emitting diode.

Exempt from ageing control system, wherein, the laser instrument includes laser lamp and laser diode, laser diode connect in the laser lamp.

The aging-free control system is characterized in that the laser diode and the laser lamp are integrally formed.

The aging-free control system is characterized in that the receiving light source is a photodiode.

The aging-free control system is characterized in that the light emitter is a laser or a light emitting diode.

The application also provides a method for automatically adjusting the optical power, which is applied to the aging-free control system, and the method comprises the following steps:

acquiring the optical power of the transmitting light source and the amplitude of the signal of the receiving light source;

if the optical power of the light emitted by the emission light source is not equal to the preset power threshold, the controller adjusts the optical power of the emission light source through the power-adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold;

if the adjusted optical power is not equal to the preset power threshold, the controller adjusts the amplitude of the photoelectric signal emitted by the receiving light source through the gain-adjustable amplifying circuit, so that the adjusted amplitude of the photoelectric signal is equal to the preset amplitude threshold.

The method for automatically adjusting optical power, wherein if the optical power of the light emitted by the emission light source is not equal to the preset power threshold, the controller adjusts the optical power of the emission light source through the power-adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold specifically includes:

acquiring a preset power threshold;

calculating the optical power of the light emitted by the emission light source;

if the optical power is not equal to the preset power threshold, the controller controls the laser to increase the output current of the laser or decrease the output current of the laser through the power adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold.

The method for automatically adjusting optical power, wherein if the adjusted optical power is not equal to a preset power threshold, the controller adjusts the amplitude of the optical-electrical signal sent by the receiving light source through the gain-adjustable amplifying circuit, so that the adjusting the amplitude of the optical-electrical signal to be equal to the preset amplitude threshold specifically includes:

if the adjusted optical power is not equal to the preset power threshold, acquiring a preset amplitude threshold;

acquiring a photoelectric signal sent by the receiving light source, and calculating the amplitude of the photoelectric signal;

the controller amplifies or reduces the amplitude of the photoelectric signal sent by the receiving light source through the gain-adjustable amplifying circuit, so that the amplitude of the adjusted photoelectric signal is equal to a preset amplitude threshold value.

Based on the method for automatically adjusting optical power, the present application further provides a computer-readable storage medium storing one or more programs, where the programs are executed by a processor to implement the steps in the method for automatically adjusting optical power.

The embodiment of the invention has the following beneficial effects:

the invention discloses an aging-free control system, a method for automatically adjusting optical power and a storage medium, and aims to adjust the optical power by monitoring that the output optical power efficiency of a laser changes and driving current by adjusting a power adjustable driving circuit, avoid the change of the optical power along with service time, save energy consumption, and gain the amplitude of a photoelectric signal by a gain adjustable amplifying circuit when the optical power cannot reach a preset power threshold value so that the size of the signal received by a signal receiver is basically unchanged, thereby prolonging the service life of the laser to the maximum extent and prolonging the service time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a block diagram of a non-aging control system according to the present invention.

Fig. 2 is a flowchart of a method for automatically adjusting optical power according to the present invention.

Fig. 3 is a block diagram of a terminal device according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 illustrates a block diagram of a non-aging control system provided in the present invention, and as shown in fig. 1, the non-aging control system includes: the device comprises a controller 10, a power adjustable driving circuit 1, a transmitting light source 2, a receiving light source 3 and a gain adjustable amplifying circuit 4, wherein the controller 10 controls the power adjustable driving circuit 1, the transmitting light source 2 and the gain adjustable amplifying circuit 4 respectively, the power adjustable driving circuit 1 and the transmitting light source 2 are arranged at a transmitting end, the receiving light source 3 and the gain adjustable amplifying circuit 4 are arranged at a receiving end, light emitted by the transmitting light source is transmitted to a photodiode 3 through scattering or projection of an object to be detected, a photoelectric signal passing through the photodiode 3 is transmitted to the gain adjustable amplifying circuit for gain control, and therefore the signal after the gain control is transmitted to a signal receiver 5.

Further, the power adjustable driving circuit 1 is used for current control of the receiving system 10, so that the optical power of the light emitted by the emitting light source 2 is equal to a preset power threshold. In the embodiment of the present application, the power tunable driving circuit 1 may be adapted and configured according to different environments, for example, it may include an oscillator, an amplifier, and the like, and may also include a driver, a differential amplifier, and the like.

The preset power threshold is the maximum power value of the emitted light 2 source.

Emitting light source 2 does exempt from the lighting apparatus of ageing control system self-bring, specifically, emitting light source 2 is laser instrument or emitting diode, wherein, the laser instrument includes laser lamp 21 and laser diode 22, laser diode 22's input connect in one end in two output of laser lamp 21. The output end of the laser diode 22 is connected with the controller 10. The other end of the two output ends of the laser lamp 21 is connected with an object to be detected. The object to be measured, which may be an LED lamp, transmits light to the photodiode 31 by scattering or projection.

In some embodiments, the laser light 21 and the laser diode 22 are integrally formed.

In other embodiments, the laser light 21 and the laser diode 22 are separate.

Further, the receiving light source 3 is a photodiode 31.

Further, the gain-adjustable amplifier circuit 4 is configured to receive gain control of the controller 10 after the optical power of the light emitted by the emission light source 2 is not equal to the preset power threshold, so that the amplitude of the adjusted photoelectric signal is equal to the preset amplitude threshold. The gain adjustable amplifying circuit 4 can be set according to the environment requirement, for example, it includes a variable gain device and an operational amplifier, etc., it may also include a driver and an adjustable amplifier, etc.

Based on the above aging-free control system, the present application also provides an automatic optical power adjustment method, as shown in fig. 2, fig. 2 illustrates a flowchart of an automatic optical power adjustment method provided by the present invention. In fig. 2, the method comprises:

and S10, acquiring the optical power of the transmitting light source and the amplitude of the signal of the receiving light source.

Specifically, the emission light source 2 is a laser or a light emitting diode, the laser includes a laser lamp 21 and a laser diode 22, and an input end of the laser diode 22 is connected to one of two output ends of the laser lamp 21. The output end of the laser diode 22 is connected with the controller 10. The other end of the two output ends of the laser lamp 21 is connected with an object to be detected. The object to be measured, which may be an LED lamp, transmits light to the photodiode 31 by scattering or projection.

And S20, if the optical power of the light emitted by the emission light source is not equal to the preset power threshold, the controller adjusts the optical power of the emission light source through the power adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold.

In particular, the power threshold refers to the maximum power value at which the laser 2 can operate normally. Before measurement, the aging-free control system monitors the emergent light power of the laser through a laser diode 22 of the laser 2, and if the power is lower than or higher than the set power, the controller 10 in the aging-free control system controls the driving current of the laser through a power adjustable driving circuit, so that the output light power of the laser is increased or reduced.

Illustratively, step S20 specifically includes:

s21, acquiring a preset power threshold;

s22, calculating the optical power of the light emitted by the emission light source;

and S23, if the optical power is not equal to the preset power threshold, the controller controls the laser to increase the output current of the laser or decrease the output current of the laser through the power adjustable driving circuit, so that the adjusted optical power is equal to the preset power threshold.

Namely, the aging-free control system monitors the optical power output by the laser 2 in advance, and judges whether the optical power output by the laser 2 is equal to a preset power threshold value or not, so as to ensure that the optical power is stabilized within the preset power threshold value range. If the optical power output by the laser 2 is greater than or equal to the preset power threshold, it indicates that the optical power is changing, and therefore, the aging-free control system needs to perform current control through the power adjustable driving circuit 1, and increase or decrease the output current according to a preset control algorithm by adjusting the magnitude of the current output by the laser 2, so that the adjusted optical power output by the laser is stabilized at the preset power threshold.

In the embodiment of the present application, the preset power threshold includes a maximum power value of the laser 2 or a minimum power value of the laser 2. The settings can be configured as desired.

And S30, if the adjusted optical power is not equal to the preset power threshold, the controller adjusts the amplitude of the photoelectric signal emitted by the receiving light source through the gain-adjustable amplifying circuit, so that the amplitude of the adjusted photoelectric signal is equal to the preset amplitude threshold.

In particular, the amplitude refers to the absolute value of the deviation of the signal from the X-axis, and the amplitude threshold refers to the maximum absolute value of the deviation of the signal from the X-axis. If the system cannot make the optical power equal to the preset power threshold value or the optical power cannot be stabilized in the region where the preset power threshold value is located by adjusting the output current, such as (power threshold value-5, power threshold value +5), therefore, the controller 10 adjusts the signal amplitude of the photoelectric signal output by the photodiode 3 at the receiving end through the gain-adjustable amplifying circuit 4, so that the amplitude of the adjusted photoelectric signal is equal to the preset amplitude threshold value.

Illustratively, step S30 specifically includes:

s31, if the adjusted optical power is not equal to the preset power threshold, acquiring a preset amplitude threshold;

s32, acquiring the photoelectric signal sent by the receiving light source, and calculating the amplitude of the photoelectric signal;

s33, the controller 10 amplifies or reduces the amplitude of the optical-electrical signal emitted by the receiving light source through the gain-adjustable amplifying circuit, so that the amplitude of the adjusted optical-electrical signal is equal to a preset amplitude threshold.

Because part of the lasers are provided with the light intensity feedback circuit, the light intensity of the lasers can be stabilized at a certain value. However, the feedback system has a certain limit on the stable output optical power only by the light intensity feedback circuit, the limit is that the adjustment of the light intensity by the feedback system has a certain range, the adjustment is ineffective after the light intensity is out of the range, and the aging-free control system can continue to adjust within a certain range after the light intensity feedback circuit reaches the adjustment limit, so that the service life of the laser is prolonged to the maximum extent.

Therefore, the controller 10 in the aging-free control system obtains the photo-electric signal sent by the receiving light source, calculates the amplitude of the photo-electric signal, and once it is monitored that the amplitude of the photo-electric signal is not equal to the preset amplitude threshold, amplifies or reduces the amplitude of the photo-electric signal sent by the photodiode 31 through gain control so as to stabilize the signal amplitude in the preset amplitude threshold interval or equal to the preset amplitude threshold.

It should be noted that, when performing the current control and the gain control, the controller 10 may control the current and the gain according to the actual product accumulation control parameters, and these parameters may be used to control the current and the gain respectively, or may control both the current and the gain simultaneously. For example: and generating a curve with a certain relation between the optical power and the amplitude value of the photoelectric signal. And searching the curve according to the current photoelectric power and the amplitude value of the photoelectric signal to obtain the current adjustment quantity and the gain, so that the output optical power of the laser is stable, and the service life is prolonged.

Therefore, based on steps S10-S30, the present application makes the size of the signal received by the receiver substantially unchanged by adjusting the driving power or adjusting the gain of the amplifying circuit when the output optical power efficiency of the laser changes, so as to achieve the aging-free function, prolong the service life and save the energy consumption, and at the same time, the light intensity feedback circuit can continue to adjust within a certain range after reaching the adjustment limit, thereby prolonging the service life of the laser to the maximum extent.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Based on the above method, the present application further provides a computer-readable storage medium applied to a terminal device, as shown in fig. 3, fig. 3 shows a block diagram of a terminal device, which includes at least one processor (processor) 20; a display screen 21; and a memory (memory)22, and may further include a communication Interface (Communications Interface)23 and a bus 24. The processor 20, the display 21, the memory 22 and the communication interface 23 can communicate with each other through the bus 24. The display screen 21 is configured to display a user guidance interface preset in the initial setting mode. The communication interface 23 may transmit information. The processor 20 may call logic instructions in the memory 22 to perform the methods in the embodiments described above.

Furthermore, the logic instructions in the memory 22 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.

The memory 22, which is a computer-readable storage medium, may be configured to store a software program, a computer-executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present invention. The processor 20 executes the functional application and data processing, i.e. implements the method in the above-described embodiments, by executing the software program, instructions or modules stored in the memory 22.

The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an application program required for operating the voice customer service system, at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 22 may include a high speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be transient storage media.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.