Energy-saving control method and system for laser page turning pen

Abstract

The invention discloses an energy-saving control method and system for a laser page-turning pen, and relates to the technical field of intelligent control systems.The method comprises the steps that power regulation and control spaces of a laser displayer and a wireless control module of the laser page-turning pen are determined; analyzing the relationship between the laser display brightness and the ambient light, and establishing a laser display energy-saving control module; analyzing the relationship between the signal stability and the communication distance, and establishing a wireless control module energy-saving control module; when the laser page turning pen is activated, energy-saving control is carried out based on the modules. According to the laser page turning pen, the technical problems of too high energy consumption and low use efficiency caused by inaccurate power adjustment in an existing laser page turning pen are solved, and the technical effects of reducing the energy consumption and improving the use efficiency are achieved while the laser page turning pen meets the actual use requirement by accurately adjusting the laser display brightness and the signal transmitting power.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent control systems, and in particular to an energy-saving control method and system for a laser wireless presenter. Background Art

[0002] With the widespread use of laser wireless presenters in scenarios such as meetings and classrooms, users have increasingly higher requirements for their battery life and efficiency. However, existing laser wireless presenters have inaccurate adjustments in the laser display brightness and wireless signal transmission power, resulting in excessive energy consumption of the device and insufficient battery life, affecting the user experience. Traditional laser wireless presenters use fixed power settings and cannot dynamically adjust the power according to ambient light and actual needs, resulting in a waste of battery resources. At the same time, the wireless control module of the laser wireless presenter will increase the signal transmission power at longer communication distances, thereby further increasing energy consumption, but the relationship between signal stability and communication distance is not effectively considered. These problems cause a certain amount of energy efficiency waste in the actual use of laser wireless presenters, and a more intelligent energy-saving control method is urgently needed.

[0003] In the current related technologies, there is a technical problem in laser wireless presenters that the power regulation is not accurate, resulting in excessive energy consumption and low efficiency. Summary of the invention

[0004] The present application solves the technical problems of excessive energy consumption and low efficiency in existing laser wireless presenters due to inaccurate power regulation by providing an energy-saving control method and system for a laser wireless presenter.

[0005] The present application provides an energy-saving control method and system for a laser wireless presenter, including: Determine the laser power control space of the laser display of the target laser wireless presenter and the signal transmission power control space of the wireless control module; analyze the relationship between the laser display brightness and the ambient light based on the laser power control space, and establish a laser display energy-saving control module; analyze the relationship between signal stability and communication distance based on the signal transmission power control space, and establish a wireless control module energy-saving control module; when the target laser wireless presenter is activated, perform energy-saving control based on the laser display energy-saving control module and the wireless control module energy-saving control module.

[0006] The present application also provides an energy-saving control system for a laser wireless presenter, comprising: A signal transmission power control space determination module, the signal transmission power control space determination module is used to determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module; a laser display energy-saving control establishment module, the laser display energy-saving control establishment module is used to analyze the relationship between laser display brightness and ambient light based on the laser power control space, and establish a laser display energy-saving control module; a relationship analysis module, the relationship analysis module is used to analyze the relationship between signal stability and communication distance based on the signal transmission power control space, and establish a wireless control module energy-saving control module; an energy-saving control module, the energy-saving control module is used to perform energy-saving control based on the laser display energy-saving control module and the wireless control module energy-saving control module when the target laser presenter is activated.

[0007] The energy-saving control method and system for a laser wireless presenter proposed in this application first determine the power regulation space of the laser display and wireless control module of the laser wireless presenter; analyze the relationship between the laser display brightness and the ambient light, and establish a laser display energy-saving control module; analyze the relationship between the signal stability and the communication distance, and establish a wireless control module energy-saving control module; when the laser wireless presenter is activated, energy-saving control is performed based on the above modules, and by accurately adjusting the laser display brightness and signal transmission power, the technical effect of reducing energy consumption and improving the use efficiency of the laser wireless presenter while meeting the actual use needs is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the embodiment of the present disclosure, the accompanying drawings of the embodiment of the present disclosure will be briefly introduced below. A flow chart is used in the present application to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can also be added to these processes, or one or more operations can be removed from these processes.

[0009] Figure 1 A schematic diagram of a flow chart of an energy-saving control method for a laser wireless presenter provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of an energy-saving control system for a laser wireless presenter provided in an embodiment of the present application.

[0010] Explanation of the reference numerals: signal transmission power regulation space determination module 10 , laser display energy-saving control establishment module 20 , relationship analysis module 30 , energy-saving control module 40 . DETAILED DESCRIPTION

[0011] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0012] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0013] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict, and the terms "first\second" involved are merely to distinguish similar objects and do not represent a specific ordering of objects. The terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of this application. The terms used herein are for the purpose of describing the embodiments of the present application only.

[0014] The present application embodiment provides an energy-saving control method for a laser wireless presenter. Figure 1 As shown, the method includes: Step S100, determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module. Specifically, to determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module, first of all, for the laser display, it is necessary to collect its hardware specification manual and technical documents, understand the laser diode model, rated power and other information, prepare a high-precision laser power meter and an optical coupling device, measure multiple times in standby or low brightness state and average to determine the minimum power value, and perform the same operation when working stably at the highest brightness to obtain the maximum power value, so as to determine its control space. For the wireless control module, it is necessary to analyze the hardware and consult the technical documents to understand the wireless communication technology standards, etc., build a test environment including a signal generator, a spectrum analyzer, etc., set the transmission power to the lowest level, and measure and convert the minimum transmission power at a certain distance after eliminating interference. Similarly, set it to the highest level to measure the maximum transmission power, so as to determine its control space, provide a basis for subsequent energy-saving control strategies, and achieve energy consumption reduction and energy efficiency improvement.

[0015] Step S200, based on the laser power control space, the relationship between the laser display brightness and the ambient light is analyzed, and a laser display energy-saving control module is established. Specifically, professional optical power measurement equipment and brightness detection instruments are used to gradually change the laser output power in the laser power control space of the laser wireless presenter, measure and record the display brightness at different powers, and determine the brightness-power relationship. Next, multiple samples are selected within the display brightness range, and the wireless presenter is placed in a test environment that can accurately control the ambient light brightness, simulating a variety of ambient light conditions, and inviting testers to conduct subjective evaluations of the display clarity and human eye comfort of each sample in different light and record the data. Then, the contrast is calculated based on the ambient light brightness and display brightness samples, and a first response curve of the contrast and ambient light brightness is drawn, and a second response curve of the visual fatigue score and the ambient light brightness is drawn. After that, the two curves are comprehensively analyzed to determine the ambient light brightness range that meets the preset contrast and visual fatigue score thresholds, and an ambient light-display brightness mapping relationship is established with the corresponding display brightness samples. Finally, an energy-saving control module is constructed based on this mapping relationship and brightness-power relationship. The embedded ambient light sensor detects the light brightness in real time, determines the appropriate display brightness and laser power, and accurately controls the laser display drive circuit to achieve a balance between energy saving and visual effects, reduce energy consumption, extend battery life, and improve user experience, in line with the concept of energy saving and environmental protection.

[0016] In a possible implementation, the relationship between laser display brightness and ambient light is analyzed based on the laser power control space, and a laser display energy-saving control module is established. Step S200 further includes step S210, based on the laser power control space, the laser display brightness conversion analysis is performed on the laser display, and a display brightness space and a brightness-power control relationship are generated. Specifically, a high-precision optical power meter and a calibrated brightness measuring instrument are prepared, and the target laser presenter is fixed on a stable test platform and placed in a darkroom environment to eliminate external stray light interference. Then, according to its laser power control space, starting from the minimum control power, the power is gradually increased in fixed increments, such as in the range of 1mW~10mW with a step of 0.5mW, and the power values ​​are set respectively. Each time the power is set, the actual output power is measured with a power meter, and the corresponding display brightness is measured with a brightness measuring instrument, and multiple groups of power and brightness data pairs such as (1mW, brightness value 1) are recorded. Then, all measured display brightness values ​​are summarized and duplicate data is removed to generate the display brightness space of the laser display, which shows its brightness adjustment range. Finally, the large amount of collected data is processed using methods such as data fitting or regression analysis. If the relationship is linear, a linear regression model is used to fit the expression in the form of "display brightness = a*laser power + b". If it is nonlinear, a suitable model is selected based on the characteristics of the data to establish a brightness-power control relationship, providing key support for subsequent energy-saving control and achieving energy saving and display effect optimization.

[0017] Step S220, randomly generate any display brightness in the display brightness space. Specifically, determine the minimum value of the generated display brightness space and maximum value , which is the range boundary value obtained by comprehensive testing and analysis of the display brightness of the laser presenter under different laser powers. Then, according to the programming environment or computing tool used, select a function such as the random module in Python that can generate uniformly distributed random numbers within a specified range, and generate a random decimal between 0 and 1. Finally, use the formula , mapping random decimals to specific brightness values ​​in the display brightness space. For example, a random display brightness value such as 37 nits is calculated under a specific value. Subsequently, tests and analysis of ambient light and display effects will be carried out based on this value to provide key basic data and operating steps for optimizing the energy-saving control strategy of laser displays and balancing energy saving and display quality, thereby ensuring the smooth implementation of the technical solution and achievement of the goal.

[0018] Step S230, analyze the display clarity and human eye comfort of any display brightness under different ambient lights, establish a mapping relationship with any display brightness, and generate an ambient light-display brightness mapping relationship. Specifically, build a test environment that can accurately control the brightness of ambient light, use a light intensity adjustment device to simulate a variety of ambient lights from 10lux to 1000lux, and use a light meter to accurately measure and record the light intensity value. Then, for a specific display brightness, use image analysis technology and visual evaluation equipment to shoot images of the display displaying test patterns under different ambient lights, calculate parameters such as contrast and edge sharpness to quantify display clarity, take average values ​​for multiple measurements, and invite a test team of 20 to 30 people to score the visual comfort under different ambient light conditions based on the comfort rating scale, and obtain the comprehensive evaluation index value of human eye comfort through statistical analysis. Then, based on the actual visual quality requirements and user experience standards, the display clarity threshold and the human eye comfort threshold are determined, and the ambient light brightness values ​​that meet the thresholds are screened out. These values ​​are associated with the display brightness and mapped to form data pairs. After repeating the operation on multiple random display brightnesses, the ambient light-display brightness mapping relationship is improved and presented in the form of a table or function, providing a decision-making basis for energy-saving control of laser displays, so that the laser page-turning pen can automatically adjust the brightness according to the ambient light, balance energy saving and visual effects, and improve energy utilization efficiency and user experience.

[0019] Step S240, the laser display energy-saving control module is established with the ambient light-display brightness mapping relationship and the brightness-power control relationship. Specifically, the ambient light-display brightness mapping relationship data and the brightness-power control relationship data are integrated, the energy-saving control module architecture is designed, and the input, processing logic and output interface are determined. Next, the ambient light sensor is integrated on the laser presenter, and the optical signal it senses is converted into an electrical signal. After amplification, filtering and analog-to-digital conversion preprocessing, the digitized ambient light brightness value is transmitted to the energy-saving control module at a certain time interval. Then, the module receives this value, searches for a match in the ambient light-display brightness mapping relationship table, and determines the target display brightness value with a suitable algorithm. After that, the target power parameter is calculated based on the brightness-power control relationship, and the corresponding power control signal is generated to the laser display drive circuit. Finally, the energy-saving control module is integrated into the laser presenter control system, and its performance is evaluated by joint debugging test, including light change response speed, brightness switching smoothness and power control accuracy, and then the algorithm parameters, lookup table data and hardware interface are optimized accordingly to improve the module performance and achieve energy saving and good user experience.

[0020] In one possible implementation, the display clarity and human eye comfort of any display brightness under different ambient lights are analyzed, a mapping relationship with any display brightness is established, and an ambient light-display brightness mapping relationship is generated. Step S230 further includes step S231, based on any display brightness, a test is performed to collect multiple groups of display brightness samples, wherein any group of display brightness samples includes ambient light brightness and visual fatigue scores. Specifically, a closed test space that can precisely control ambient light is built, equipped with light adjustment equipment such as an intelligent dimming system, a laser page turner fixture and a comfortable observation area are installed, and the distance between the tester and the laser page turner screen is set to about 0.5 to 1 meter. Then recruit about 20 to 30 testers of different ages, genders, and vision conditions and train them to familiarize them with the visual fatigue rating scale. Then set the display brightness of the laser wireless presenter to a specific value and keep it unchanged. Use a light adjustment device to change the ambient light brightness in steps of 50 lux, from 50 lux to 1000 lux. Each brightness value is stable for 5 minutes. During this period, use a light meter to measure and record the ambient light brightness value. After that, ask the testers to score according to their visual experience, and summarize and count the comprehensive visual fatigue score to form a data pair including the ambient light brightness value and the comprehensive visual fatigue score. Repeat this process to obtain multiple groups of display brightness samples for different ambient light brightnesses, and then repeat the entire test for multiple random display brightnesses to expand the sample library, provide a data basis for subsequent research and energy-saving control, improve the performance and user experience of laser wireless presenters, and meet energy-saving and environmental protection requirements.

[0021] Step S232, performing contrast calculation based on any display brightness and the ambient light brightness, generating a first response curve of contrast to ambient light brightness. Specifically, multiple sets of ambient light brightness data at a specific display brightness are obtained, and accurately measured using a high-precision light meter to ensure that the error does not exceed ±5 lux, providing accurate parameters for subsequent calculations. Then, according to the formula (in To fix the display brightness value, is the ambient light brightness value), calculate the corresponding contrast value for each set of ambient light brightness data , and obtain a series of ( ) data pairs. Then, use professional data analysis software or tools, such as Excel, Python data analysis library, etc., to select the appropriate fitting function type according to the data distribution characteristics. If the approximate linearity is obtained by linear regression fitting, Form an expression and draw a straight line. If it is nonlinear, try quadratic function, exponential function, etc., measure the goodness of fit with the least squares method, select the best function form to draw the curve, and generate the first response curve of contrast with ambient light brightness. It can intuitively show the change pattern of contrast with ambient light brightness, provide key reference basis for laser display performance analysis and energy-saving control strategy formulation, help it improve display quality and energy utilization efficiency, and meet practical application needs.

[0022] Step S233, based on the ambient light brightness and the visual fatigue score, generate a second response curve of the visual fatigue score with respect to the ambient light brightness. Specifically, different ambient light brightnesses and their corresponding visual fatigue score data under a specific display brightness are collected and accurately grouped according to the ambient light brightness value. Next, the average value of the score data of each ambient light brightness group is calculated as a comprehensive score value to reduce the influence of individual differences, and the standard deviation can also be calculated to understand the degree of dispersion. Then, using data analysis software or tools, the ambient light brightness is used as the independent variable and the comprehensive score value is used as the dependent variable for curve fitting, and linear, quadratic, logarithmic, exponential and other function models are tried according to the data distribution, and the best model is selected by the goodness of fit index, and the second response curve of the visual fatigue score with respect to the ambient light brightness is drawn accordingly. Finally, the curve is verified and optimized, and the reserved data is substituted into the fitting function to calculate the predicted score and compare it with the actual score. If the error is large, the data, function selection and other factors are reviewed, and the optimization fitting process is adjusted to improve the accuracy of the curve, so as to provide a favorable basis for the formulation of energy-saving control strategies for laser displays, achieve energy saving and performance improvement under the premise of ensuring visual comfort, and improve user satisfaction.

[0023] Step S234, combining the first response curve and the second response curve, identifying the overlapping ambient light brightness when the contrast meets the preset contrast threshold and the visual fatigue score meets the preset score. Specifically, comprehensively analyze the display quality requirements of the laser display, the visual characteristics of the human eye, industry standards and user experience surveys, and determine the appropriate preset contrast critical value and the preset visual fatigue score critical value. Next, extract data points from the generated first response curve of ambient light brightness and contrast, and the second response curve of ambient light brightness and visual fatigue score, and use professional tools to plot the two in the same coordinate system to clearly show their trends. Then, along the ambient light brightness axis, compare the contrast value of the first response curve and the preset contrast critical value, as well as the visual fatigue score of the second response curve and the preset visual fatigue score critical value, and find the ambient light brightness value that simultaneously meets the contrast reaching or exceeding the preset value and the visual fatigue score within the preset range. The area where these values ​​are located is the overlapping area, and the corresponding ambient light brightness is what is required. Finally, if necessary, set lighting conditions similar to the brightness of the overlapping ambient light in the actual laser wireless presenter test environment, invite testers to make subjective evaluations of display clarity and visual fatigue, and compare the actual test results with the previous data and theoretical analysis results. If there are large differences, re-examine the preset critical values, curve fitting and other influencing factors, and adjust and optimize the analysis process to improve the accuracy of identifying the brightness of the overlapping ambient light, provide accurate and reliable basis for subsequent laser display energy-saving control strategies, enhance the comprehensive performance and practicality of the laser wireless presenter, and achieve better energy-saving effects and user experience.

[0024] Step S235, associate and map any of the display brightnesses with the ambient light brightness to generate the ambient light-display brightness mapping relationship. Specifically, collect test data for specific display brightnesses under different ambient light brightnesses, including ambient light brightness values ​​measured by a high-precision light meter, visual fatigue scores given by testers and statistically processed, and calculated contrast values, while ensuring that the data is accurate, complete, and well classified. Next, based on the display effect and user experience requirements, determine key indicator thresholds such as the minimum contrast threshold and the upper threshold of the visual fatigue score, as a basis for screening. Then, for each specific display brightness value, traverse its corresponding ambient light brightness data, screen out ambient light brightness values ​​that meet the threshold conditions, and form a range of light conditions that can guarantee visual effects and comfort at the display brightness. Afterwards, pair the screened ambient light brightness values ​​with the specific display brightness values ​​one by one, construct an ambient light-display brightness mapping relationship, and enrich this relationship by repeating the operation for multiple different display brightnesses. Finally, mathematical modeling and actual scene sampling tests are performed on the mapping relationship to optimize and verify, and function fitting is used to find the best mathematical expression to facilitate calculation. The deviation is adjusted based on the test results, and the relationship model is improved to provide precise guidance for the energy-saving control of laser displays, balance energy saving and display effects, and improve user experience and energy utilization efficiency.

[0025] Step S300, based on the signal transmission power control space, the relationship between signal stability and communication distance is analyzed, and a wireless control module energy-saving control module is established. Specifically, an open and obstacle-free test site is built, a plurality of evenly distributed signal receiving points are set, and a high-precision signal strength meter and a communication quality analyzer are prepared. Then, according to the signal transmission power control space of the wireless control module, the test signal is sent to the receiving point at each power level from the lowest transmission power according to a reasonable step size, and the signal strength value and signal stability index values ​​such as bit error rate and packet loss rate of each receiving point are recorded synchronously with an instrument. Then, a large amount of collected data is analyzed, a curve of signal strength changing with communication distance is drawn, and a quantitative relationship model of signal stability and communication distance is established by statistical analysis and curve fitting methods, such as function expressions such as "bit error rate = f (communication distance)". Finally, based on the relationship analysis results combined with application requirements and energy-saving goals, an energy-saving control module is designed, and the signal stability threshold range is set. When the communication distance changes, the real-time signal stability index is monitored and compared with the threshold. When the threshold is exceeded, the required transmission power is calculated according to the relationship model, and the power is adjusted after appropriate delay and step size to avoid frequent adjustments, thereby ensuring stable, reliable and efficient communication, improving the performance, energy utilization efficiency and practicality of the wireless control module, and meeting market demand.

[0026] In a possible implementation, the relationship between signal stability and communication distance is analyzed based on the signal transmission power control space, and a wireless control module energy-saving control module is established. Step S300 further includes step S310, randomly generating any signal transmission power in the signal transmission power control space. Specifically, the technical specifications and hardware parameters of the wireless control module are analyzed to determine the minimum value of its signal transmission power control space. and maximum value , these two boundary values ​​limit the range of subsequent random values, ensuring that the generated power value is safe and effective for the device. Next, based on the programming environment or computing tools used, select a method such as the random module in Python that can generate uniformly distributed random numbers within a specified range, and first generate a random decimal r between 0 and 1. Finally, use the formula Map random decimals to specific signal transmission power values ​​in the control space For example, under specific values, a random power value such as 9.5mW can be calculated. Subsequently, the signal stability and communication distance test analysis will be carried out based on this, providing key data and operational guidance for optimizing the energy-saving control strategy of the wireless control module and balancing energy saving and communication quality, thus ensuring the effective implementation of the technical solution and the achievement of the goal.

[0027] Step S320, analyze the signal stability of any signal transmission power at different distances to generate a communication distance-transmission power mapping relationship. Specifically, build an open test site with no obvious obstacles and little electromagnetic interference, use high-precision measuring instruments to mark the distance points that increase at a certain interval (such as 5 meters), starting from 1 meter to the expected maximum test distance, and set a receiving device with high-precision signal detection and quality analysis functions at each distance point, and connect it to the data acquisition center. Then set the signal transmission power of the wireless control module to a randomly generated specific value and keep it unchanged, start transmitting the signal from the closest distance point, collect the received signal strength, bit error rate, packet loss rate and other stability index data at each distance point multiple times (such as 10 to 20 times) and take the average value for recording. Then analyze the data in depth, draw a curve of signal strength changing with communication distance, analyze the relationship between bit error rate, packet loss rate and communication distance, and use statistical analysis and curve fitting methods to establish a corresponding function expression to describe its quantitative relationship. Finally, the above operation is repeated for multiple different random transmission powers, and the associated relationship models are integrated to generate a communication distance-transmission power mapping relationship, which is presented in the form of a table or function. This provides a decision-making basis for the wireless control module to dynamically adjust the power according to the communication distance, achieve energy-saving optimization, and improve performance, thereby meeting the needs of actual application scenarios.

[0028] Step S330, construct the energy-saving control module of the wireless control module with the communication distance-transmission power mapping relationship. Specifically, the communication distance-transmission power mapping relationship data obtained in the early stage is sorted and summarized, and the energy-saving control module framework of the wireless control module is designed accordingly, and the input (receiving real-time communication distance information), processing logic (calculating the appropriate transmission power according to the mapping relationship) and output interface (sending power adjustment instructions) are clarified. Then, in the actual operating environment, the distance measurement sensor or wireless communication system ranging technology is used to monitor in real time and transmit the communication distance to the energy-saving control module as a digital signal. Then, after receiving the module, the module searches or calculates the optimal transmission power value in the mapping relationship, and also fine-tunes it in combination with the real-time signal quality index. After that, an instruction is generated and sent to the power adjustment unit, which responds quickly to precise control and adjusts the transmission power to the target value. Finally, the module performance is continuously monitored, including energy consumption, communication quality stability and response speed, and optimized and adjusted accordingly, such as optimizing the mapping relationship, algorithm or adjusting the transmission power strategy, to balance energy saving and communication, improve overall performance and user experience, and meet market demand.

[0029] In one possible implementation, the signal stability of any signal transmission power at different distances is analyzed to generate a communication distance-transmission power mapping relationship. Step S320 further includes step S321, in which the signal stability of any signal transmission power at different distances is tested. According to the test results, a signal stability index is used as the dependent variable and the communication distance is used as the independent variable to establish a signal stability curve. Specifically, an open, flat, and electromagnetically interference-free site is selected as the test area. A high-precision rangefinder or tape measure is used to mark distance points from 1 meter away from the signal source in 5-meter steps to the expected maximum distance (such as 50 meters). Each point is equipped with a device with high-sensitivity receiving and precise analysis functions, and the power of the signal transmitting device is set to a specific value. Then, start the transmitter, and start from the nearest test point. The receiving devices at each point will collect data synchronously. The signal will be received for 1 minute at each point, and the signal strength will be measured and recorded every 10 seconds. , bit error rate , Packet loss rate Then, according to actual needs, select one or more of signal strength, bit error rate, packet loss rate, etc. as dependent variables, and organize the data to form ( , ) data pairs. Finally, use professional software or tools to take the communication distance as the independent variable, Perform curve fitting for the dependent variable, select the appropriate function type (such as linear, quadratic, exponential, etc.) according to the data trend to determine the best fitting parameters, draw the signal stability curve, and intuitively display the change pattern of signal stability index with communication distance, providing a basis for optimizing the performance of the wireless communication system.

[0030] Step S322, based on the signal stability curve, a communication distance that meets the preset signal stability threshold is generated, and associated with any of the signal transmission powers to generate the communication distance-transmission power mapping relationship. Specifically, the preset signal stability threshold is determined in combination with the application requirements and performance standards of the wireless communication system, such as a low bit error rate threshold for high-precision data transmission scenarios, a low packet loss rate threshold for signal continuity, and a suitable signal strength threshold for ordinary transmission, as a basis for judging whether the communication distance meets the standard. Next, a large number of data points are extracted from the existing signal stability curve to lay the foundation for subsequent analysis. Then, along the communication distance dimension, the signal stability index data is compared with the preset threshold one by one, the communication distance that meets the conditions is recorded, and the effective communication distance range under a specific transmission power is determined. Finally, the communication distance that meets the threshold is associated with the corresponding transmission power, and the data is recorded in a table. After repeated operations on multiple transmission powers, a complete mapping relationship is generated, which provides accurate guidance for the wireless control module to adjust the power according to the communication distance, balances energy saving and communication quality, improves system performance and reliability, meets the needs of various application scenarios, and promotes the development of wireless communication technology.

[0031] In a possible implementation, the signal stability test at different distances is performed on any signal transmission power, and according to the test results, the signal stability index is used as the dependent variable and the communication distance is used as the independent variable to establish a signal stability curve. Step S321 further includes step S3211, performing communication tests on the wireless control module at multiple distances, receiving the proportion of error data in the transmission data packet, the proportion of data packets that are not successfully received by the receiving end, and the time delay of signal propagation, and performing data standardization processing, and then performing weighted fusion to generate multiple signal stability indicators corresponding to the multiple distances. Specifically, an open and electromagnetically interference-free site is selected, and test distance points from near to far (such as 1 meter to 50 meters) are marked with high-precision instruments, and two identical and configured wireless control modules are prepared as transceivers and data acquisition equipment and analysis software. Then, at each distance point, the transmitting end sends a fixed data packet, and the receiving end continuously receives and records the data packet information and time delay. After multiple tests, the error data ratio and the proportion of unsuccessfully received data packets in each test at each distance point are statistically calculated, and the average value is taken as the final value. At the same time, after removing outliers from the time delay data, the average time delay and standard deviation are calculated, and then the average value is taken. Then, the original data of these three indicators are processed using the Min-Max standardization method to unify their numerical ranges. Finally, based on the communication system's emphasis on signal stability, the weighted coefficients of the three indicators are determined and the sum is 1. The signal stability index is calculated for each distance point according to the weighted formula. These indicators can reflect the module signal stability at different distances, provide a basis for communication performance analysis, and promote the development of wireless communications.

[0032] Step S3212, generating the test results with the multiple distances and the multiple signal stability indicators. Specifically, the multiple signal stability indicator data obtained from the communication test of the wireless control module at multiple distances are systematically sorted and summarized to ensure that the distance is accurately associated with the corresponding indicator data, laying the foundation for generating the test results. It is crucial to ensure the accuracy and completeness of the data. Then, according to the test purpose and audience, select the appropriate result presentation method. If it is for technical personnel, you can choose a detailed data table, with rows representing the test distance and columns showing the signal stability indicators and derived data at each distance, which is convenient for accurate analysis; if it is for non-technical personnel, use intuitive charts, such as line charts to show the trend of indicators changing with distance, or bar charts to compare key indicators, to help them quickly understand the general performance. Then, deeply analyze the sorted data, calculate the average value, maximum value, standard deviation and other statistics of each indicator in different distance ranges, grasp the overall distribution and discreteness, analyze the law of indicator changes with distance, and write a text description based on this, summarize and evaluate the module signal stability performance, point out the advantages and disadvantages and put forward improvement suggestions, so that the test results have guiding significance. Finally, the result presentation method is combined with the text description of the analysis summary to generate a complete test result report covering the basic information of the test, ensuring that the data charts are accurate and clear, and the text descriptions are rigorous and clear. After proofreading and review, it is made professional, readable and usable, providing key support for the development and application of modules, enhancing their market competitiveness and application value, and promoting the development and innovation of wireless communication technology.

[0033] Step S400, when the target laser presenter is activated, energy-saving control is performed based on the laser display energy-saving control module and the wireless control module energy-saving control module. Specifically, a distance-measuring module based on wireless communication technology (such as low-power Bluetooth, radio frequency identification, etc.) is deployed on the target laser presenter and the multimedia display device respectively. After the laser presenter is started, it continuously sends a wireless signal containing identification information. After receiving the signal, the multimedia display device uses a signal strength indication algorithm and a pre-stored signal strength and distance corresponding model, and after multiple measurements, averages, filters, and other processing, it combines a dynamic calibration mechanism to identify the real-time communication distance, and the error is controlled within a certain range (such as within 1 meter). Secondly, a light brightness sensor with high sensitivity, wide dynamic range, and a sunshade or special optical path design is installed on the multimedia display device, and data is collected at a certain time interval (such as every second). After pre-processing such as denoising and calibration, the measurement error is ensured to be within an acceptable range (such as ±10lux) to obtain real-time light brightness. Finally, the control unit of the multimedia display device receives and verifies the data from the above two modules through the data fusion and processing module, and triggers corresponding operations according to the preset logic and functional requirements, according to the communication distance and light brightness, such as adjusting the transmission power, display device parameters or the sensitivity of the wireless presenter, etc., to achieve intelligent interaction, improve user experience, meet the needs of different scenarios, and promote the system to develop towards intelligence and humanity.

[0034] In a possible implementation, when the target laser wireless presenter is activated, energy-saving control is performed based on the laser display energy-saving control module and the wireless control module energy-saving control module, and step S400 further includes step S410, when the target laser wireless presenter is activated, the real-time communication distance from the target laser wireless presenter to the multimedia display device and the real-time light brightness are identified. Specifically, when the target laser wireless presenter is activated, firstly, a calibrated high-precision wireless signal transceiver module is built into it and the multimedia display device, respectively, and a signal strength and distance mapping table generated based on experimental testing is entered. The laser wireless presenter sends a signal pulse containing a specific identifier at a fixed frequency. After receiving it, the multimedia display device records the signal strength and timestamp, uses multi-antenna technology and diversity algorithm to optimize the signal, and then calculates the preliminary communication distance in combination with the mapping table. Multiple measurement values ​​are fused through methods such as Kalman filtering to obtain an accurate and stable real-time communication distance and store it. At the same time, the multimedia display device is installed with a high-sensitivity light brightness sensor with automatic gain control, temperature compensation and calibration functions. The sensor starts synchronously when the laser wireless presenter is activated, samples are taken at fixed intervals, and the original light signal is pre-processed and corrected with the calibration coefficient. After data filtering and outlier detection algorithm processing, the average value is taken as the real-time light brightness value for storage, providing a basis for subsequent system function adjustments, realizing intelligent interaction, meeting the usage requirements of different environments, and improving user experience and equipment practicality.

[0035] Step S420, input the real-time light brightness into the laser display energy-saving control module to match the power control parameters of the laser display, generate the target power control parameters, input the real-time communication distance into the wireless control module energy-saving control module to match the signal transmission power, and generate the target communication control parameters. Specifically, the sample data of different light brightness values ​​and laser display power control parameters are pre-stored in the laser display energy-saving control module. After the module is initialized, the acquired real-time light brightness data is pre-processed to remove noise, convert the format and unify the units, and then use intelligent algorithms such as neural networks to match the light brightness in the sample set as input, combine the weighted fine-tuning of the display working state, generate the target power control parameters and send them to the power management unit, so as to accurately adjust the display power, and continuously monitor the light changes to re-match the parameters. At the same time, the energy-saving control module of the wireless control module also pre-stores the mapping data of communication distance and signal transmission power. After initialization, it verifies and pre-processes the real-time communication distance data, and uses the search and fitting algorithm to determine the transmission power value that matches the distance in the database. Taking into account the dynamic nature of the communication environment, it adaptively adjusts according to the communication quality index, and determines the target communication control parameters and sends them to the power regulation unit to accurately adjust the power through closed-loop feedback control. The module also optimizes algorithms and strategies based on feedback information to achieve efficient energy saving and stable communication, thereby improving user experience and equipment application scope.

[0036] Step S430, the laser display is controlled with the target power control parameter, and the wireless control module is controlled with the target communication control parameter. Specifically, for the laser display, the target power control parameter is first obtained from the energy-saving control module, and is transmitted in a specific format and then parsed into actual control instructions by the control unit, such as the brightness of the laser light source and the power supply parameter. Then, the control unit interacts with the hardware driver accordingly to adjust the power of the laser light source and the power supply so that the display reaches the corresponding state according to the ambient light. During operation, the display effect and power consumption are monitored by the built-in sensor, and the feedback is given to the control unit. If there is a deviation, the parameters are fine-tuned and the hardware is readjusted to ensure its optimal operation. For the wireless control module, the target communication control parameter is received from the energy-saving control module and converted into a form suitable for the hardware and protocol. The RF transmitting unit accurately adjusts the transmission power accordingly, such as controlling the power size according to the communication distance and based on environmental factors. During operation, the signal strength, bit error rate and other indicators are continuously monitored, and compared with the expected, if there is a communication quality problem, the mechanism is automatically triggered to readjust the transmission power, switch channels or change the modulation and coding mode, dynamically save energy and ensure communication stability, improve equipment performance and adaptability, and provide technical support for the system.

[0037] The embodiment of the present application adopts the method of determining the power regulation space of the laser display and the wireless control module of the laser wireless presenter; analyzing the relationship between the laser display brightness and the ambient light, and establishing a laser display energy-saving control module; analyzing the relationship between the signal stability and the communication distance, and establishing a wireless control module energy-saving control module; when the laser wireless presenter is activated, energy-saving control is performed based on the above modules, thereby achieving the technical effect of reducing energy consumption and improving the use efficiency of the laser wireless presenter while meeting the actual use needs by accurately adjusting the laser display brightness and the signal transmission power.

[0038] In the above, refer to Figure 1 The energy saving control method of a laser wireless presenter according to an embodiment of the present invention is described in detail. Figure 2 An energy-saving control system of a laser wireless presenter according to an embodiment of the present invention is described.

[0039] An energy-saving control system for a laser wireless presenter according to an embodiment of the present invention is used to solve the technical problem of excessive energy consumption and low efficiency in existing laser wireless presenters due to inaccurate power regulation. By accurately adjusting the laser display brightness and signal transmission power, the laser wireless presenter can reduce energy consumption and improve efficiency while meeting actual usage requirements. An energy-saving control system for a laser wireless presenter includes: a charging test data acquisition module 10, a charging time prediction network configuration module 20, a constraint step setting module 30, an unknown population A construction module 40, a historical population B construction module 50, a dual population optimization module 60, and a lithium battery multi-stage charging control module 70.

[0040] The signal transmission power control space determination module 10 is used to determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module.

[0041] The laser display energy-saving control establishment module 20 is used to analyze the relationship between the laser display brightness and the ambient light based on the laser power regulation space, and establish a laser display energy-saving control module.

[0042] The relationship analysis module 30 is used to analyze the relationship between signal stability and communication distance based on the signal transmission power control space, and establish a wireless control module energy-saving control module.

[0043] The energy-saving control module 40 is used to perform energy-saving control based on the laser display energy-saving control module and the wireless control module energy-saving control module when the target laser presenter is activated.

[0044] The specific configuration of the laser display energy-saving control establishment module 20 will be described in detail below. As described above, the relationship between the laser display brightness and the ambient light is analyzed based on the laser power control space, and the laser display energy-saving control module is established. The laser display energy-saving control establishment module 20 further includes: a display brightness space generation unit, the display brightness space generation unit is used to perform laser display brightness conversion analysis on the laser display based on the laser power control space, generate a display brightness space, and a brightness-power control relationship; an arbitrary display brightness generation unit, the arbitrary display brightness generation unit is used to randomly generate any display brightness in the display brightness space; a mapping relationship establishment unit, the mapping relationship establishment unit is used to analyze the display clarity and human eye comfort of any display brightness under different ambient lights, establish a mapping relationship with any display brightness, and generate an ambient light-display brightness mapping relationship; an energy-saving control module establishment unit, the energy-saving control module establishment unit is used to establish the laser display energy-saving control module with the ambient light-display brightness mapping relationship and the brightness-power control relationship.

[0045] Among them, the display clarity and human eye comfort of different ambient lights are analyzed for any display brightness, a mapping relationship with any display brightness is established, and an ambient light-display brightness mapping relationship is generated. The mapping relationship establishment unit further includes: a display brightness sample acquisition subunit, the display brightness sample acquisition subunit is used to perform a test based on any display brightness, and collect multiple groups of display brightness samples, wherein any group of display brightness samples includes ambient light brightness and visual fatigue score; a contrast calculation subunit, the contrast calculation subunit is used to perform contrast calculation based on any display brightness and the ambient light brightness, and generate a contrast with respect to the ambient light brightness. A first response curve; a second response curve generating subunit, the second response curve generating subunit is used to generate a second response curve of the visual fatigue score with respect to the ambient light brightness based on the ambient light brightness and the visual fatigue score; a contrast threshold identification subunit, the contrast threshold identification subunit is used to combine the first response curve with the second response curve to identify the overlapping ambient light brightness when the contrast meets the preset contrast threshold and the visual fatigue score meets the preset score; an association mapping subunit, the association mapping subunit is used to perform association mapping between any display brightness and the ambient light brightness to generate the ambient light-display brightness mapping relationship.

[0046] The specific configuration of the relationship analysis module 30 will be described in detail below. As described above, the relationship analysis between signal stability and communication distance is performed based on the signal transmission power control space, and a wireless control module energy-saving control module is established. The relationship analysis module 30 further includes: any signal transmission power generation unit, the any signal transmission power generation unit is used to randomly generate any signal transmission power in the signal transmission power control space; a signal stability analysis unit, the signal stability analysis unit is used to perform signal stability analysis on the any signal transmission power at different distances, and generate a communication distance-transmission power mapping relationship; an energy-saving control module construction unit, the energy-saving control module construction unit is used to construct the wireless control module energy-saving control module with the communication distance-transmission power mapping relationship.

[0047] Among them, the signal stability analysis of any signal transmission power at different distances is performed to generate a communication distance-transmission power mapping relationship, and the signal stability analysis unit further includes: a signal stability curve construction subunit, the signal stability curve construction subunit is used to test the signal stability of any signal transmission power at different distances, and according to the test results, the signal stability index is used as the dependent variable and the communication distance is used as the independent variable to establish a signal stability curve; a communication distance generation subunit, the communication distance generation subunit is used to generate a communication distance that meets the preset signal stability threshold based on the signal stability curve, and associate and map with any signal transmission power to generate the communication distance-transmission power mapping relationship. A communication test microunit, the communication test microunit is used to perform communication tests on the wireless control module at multiple distances, receive the proportion of erroneous data in the transmission data packet, the proportion of data packets that are not successfully received by the receiving end, and the time delay of signal propagation, and perform data standardization processing, and then perform weighted fusion to generate multiple signal stability indicators corresponding to the multiple distances; a test result generation microunit, the test result generation microunit is used to generate the test results with the multiple distances and the multiple signal stability indicators.

[0048] The specific configuration of the energy-saving control module 40 will be described in detail below. As described above, when the target laser presenter is activated, energy-saving control is performed based on the laser display energy-saving control module and the wireless control module energy-saving control module, and the energy-saving control module 40 further includes: a real-time communication distance identification unit, which is used to identify the real-time communication distance from the target laser presenter to the multimedia display device and the real-time light brightness when the target laser presenter is activated; a target power control parameter generation unit, which is used to input the real-time light brightness into the laser display energy-saving control module to match the power control parameters of the laser display, generate the target power control parameters, input the real-time communication distance into the wireless control module energy-saving control module to match the signal transmission power, and generate the target communication control parameters; a display control unit, which is used to control the laser display with the target power control parameters and control the wireless control module with the target communication control parameters.

[0049] An energy-saving control system for a laser wireless presenter provided in an embodiment of the present invention can execute an energy-saving control method for a laser wireless presenter provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0050] Although the present application makes various references to certain modules in the system according to the embodiments of the present application, any number of different modules may be used and run on the user terminal and / or server, and the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0051] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A method for energy saving control of a laser wireless presenter, characterized in that: include: Determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module; Analyze the relationship between laser display brightness and ambient light based on the laser power control space, and establish a laser display energy-saving control module; Based on the signal transmission power control space, the relationship between signal stability and communication distance is analyzed, and a wireless control module energy-saving control module is established; When the target laser presenter is activated, energy saving control is performed based on the laser display energy saving control module and the wireless control module energy saving control module.

2. The energy-saving control method of a laser wireless presenter according to claim 1, characterized in that: Based on the laser power control space, the relationship between the laser display brightness and the ambient light is analyzed, and a laser display energy-saving control module is established, including: Performing laser display brightness conversion analysis on the laser display based on the laser power control space to generate a display brightness space and a brightness-power control relationship; Randomly generate any display brightness in the display brightness space; Performing display clarity and human eye comfort analysis on any display brightness under different ambient lights, establishing a mapping relationship with any display brightness, and generating an ambient light-display brightness mapping relationship; The laser display energy-saving control module is established based on the ambient light-display brightness mapping relationship and the brightness-power control relationship.

3. The energy-saving control method of a laser wireless presenter according to claim 2, characterized in that: Performing display clarity and human eye comfort analysis on any display brightness under different ambient lights, establishing a mapping relationship with any display brightness, and generating an ambient light-display brightness mapping relationship, including: Performing a test based on any of the display brightness, collecting multiple groups of display brightness samples, wherein any group of display brightness samples includes ambient light brightness and visual fatigue score; Calculate the contrast ratio based on the display brightness and the ambient light brightness to generate a first response curve of the contrast ratio with respect to the ambient light brightness; Based on the ambient light brightness and the visual fatigue score, generating a second response curve of the visual fatigue score with respect to the ambient light brightness; Combining the first response curve and the second response curve, identifying the brightness of the overlapping ambient light when the contrast meets a preset contrast threshold and the visual fatigue score meets a preset score; An association mapping is performed between any display brightness and the ambient light brightness to generate the ambient light-display brightness mapping relationship.

4. The energy-saving control method of a laser wireless presenter according to claim 1, characterized in that: Based on the signal transmission power control space, the relationship between signal stability and communication distance is analyzed, and a wireless control module energy-saving control module is established, including: Randomly generate any signal transmission power within the signal transmission power control space; Performing signal stability analysis on the transmission power of any of the signals at different distances to generate a communication distance-transmission power mapping relationship; The wireless control module energy-saving control module is constructed based on the communication distance-transmission power mapping relationship.

5. The energy-saving control method of a laser wireless presenter according to claim 4, characterized in that: The signal stability analysis of any signal transmission power at different distances is performed to generate a communication distance-transmission power mapping relationship, including: Performing a signal stability test at different distances on any of the signal transmission powers, and establishing a signal stability curve based on the test results, taking the signal stability index as the dependent variable and the communication distance as the independent variable; A communication distance that meets a preset signal stability threshold is generated based on the signal stability curve, and is associated and mapped with any signal transmission power to generate the communication distance-transmission power mapping relationship.

6. The energy-saving control method of a laser wireless presenter according to claim 5, characterized in that: The signal stability test of any signal transmission power at different distances is performed, including: Conducting communication tests on the wireless control module at multiple distances, receiving the proportion of erroneous data in the transmitted data packet, the proportion of data packets that are not successfully received by the receiving end, and the time delay of signal propagation, performing data standardization processing, and then performing weighted fusion to generate multiple signal stability indicators corresponding to the multiple distances; The test result is generated based on the multiple distances and the multiple signal stability indicators.

7. The energy-saving control method of a laser wireless presenter according to claim 1, characterized in that: When the target laser presenter is activated, energy-saving control is performed based on the laser display energy-saving control module and the wireless control module energy-saving control module, including: When the target laser presenter is activated, the real-time communication distance from the target laser presenter to the multimedia display device and the real-time light brightness are identified; Input the real-time light brightness into the laser display energy-saving control module to match the power control parameters of the laser display and generate target power control parameters; input the real-time communication distance into the wireless control module energy-saving control module to match the signal transmission power and generate target communication control parameters; The laser display is controlled by the target power control parameter, and the wireless control module is controlled by the target communication control parameter.

8. An energy-saving control system for a laser wireless presenter, characterized in that: The system is used to implement the energy-saving control method of a laser wireless presenter according to any one of claims 1 to 7, and the system comprises: A signal transmission power control space determination module, wherein the signal transmission power control space determination module is used to determine the laser power control space of the laser display of the target laser presenter and the signal transmission power control space of the wireless control module; A laser display energy-saving control establishment module, the laser display energy-saving control establishment module is used to analyze the relationship between laser display brightness and ambient light based on the laser power control space, and establish a laser display energy-saving control module; A relationship analysis module, the relationship analysis module is used to analyze the relationship between signal stability and communication distance based on the signal transmission power control space, and establish a wireless control module energy-saving control module; An energy-saving control module, wherein the energy-saving control module is used to perform energy-saving control based on the laser display energy-saving control module and the wireless control module energy-saving control module when the target laser wireless presenter is activated.

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