A computer control method and apparatus with adaptive performance regulation

By connecting with employees' personal office badges via Bluetooth and monitoring distance, the accuracy and adaptability issues of computer screen lock technology have been resolved, enabling intelligent management and enhanced security of computers, thereby improving office efficiency and energy saving.

CN122363761APending Publication Date: 2026-07-10TIANJIN XINSENMING INFORMATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN XINSENMING INFORMATION TECHNOLOGY CO LTD
Filing Date
2026-04-14
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing computer lock screen technology cannot accurately identify user status, leading to frequent accidental lock screen triggers, which affects work efficiency. Furthermore, performance tuning cannot adapt to the needs of different work scenarios, resulting in resource waste or computational bottlenecks.

Method used

By establishing a Bluetooth connection with employees' personal work badges, the system monitors distance in real time and plots trend curves. Combined with performance preference information, it enables联动 control of computer displays and indicator lights, including adaptive performance adjustment and unlock verification.

Benefits of technology

It achieves precise binding between the computer and the user, avoids accidental screen lock, improves office efficiency, saves energy and reduces consumption, ensures security and convenience, and provides intuitive status feedback.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application belongs to the technical field of computers, and particularly relates to a computer control method and device with adaptive performance adjustment, which is applied to an enterprise office scene, acquires user performance preference information through Bluetooth interaction with an office card that is exclusively configured for the enterprise and uniquely associated with the identity of an employee, and realizes intelligent linkage control. The method comprises the following steps: establishing a Bluetooth connection with the office card and acquiring user performance preference information; continuously collecting data to draw a trend curve by calculating a distance value of a Bluetooth signal in real time; and performing linkage control on a computer display screen, an indicator light and performance according to the distance value, the trend curve and the performance preference, wherein the performance level is divided into two grades, namely fixed operation and adaptive adjustment, the screen is automatically locked when the distance value exceeds a threshold value or the Bluetooth connection is disconnected, and a password encryption verification is required for unlocking. The application realizes accurate identity binding and full-chain security protection, dynamically adapts energy consumption and office performance requirements, and improves the intelligent management level of the device and the smoothness of office interaction.
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Description

Technical Field

[0001] This invention belongs to the field of computer technology, and specifically relates to a computer control method and device with adaptive performance adjustment. Background Technology

[0002] With the widespread adoption of IT-based office systems, computers have become core tools for daily business operations. The security of sensitive content stored on computers, such as business data, customer information, and internal documents, directly impacts corporate interests. Current technologies typically employ manual screen locking (e.g., keyboard shortcuts, mouse operation) or automatic screen locking mechanisms (e.g., timed locking, sensor-triggered locking) to prevent unauthorized access when users leave their workstations. However, when users need to leave temporarily, they may forget to lock the screen, not have time to lock it, or forget whether they have locked it at all. Furthermore, while devices can automatically lock the screen, their performance cannot adaptively adjust. Different office scenarios (e.g., designers running heavy software, administrative staff handling lightweight documents) have significantly different performance requirements. Inappropriate performance allocation can lead to resource idleness under high energy consumption or computational bottlenecks in low-performance modes.

[0003] Currently, mainstream automatic screen locking technologies mainly rely on the following methods: Single sensor triggering: such as using an infrared distance sensor to detect the distance between the user and the screen, and locking the screen when the distance exceeds a threshold; or using facial recognition via a camera, and triggering screen locking when no face is detected; the security of sensitive content is directly related to the interests of enterprises, and the inability to distinguish between "the user briefly getting up" and "completely leaving the workstation", frequent accidental screen locking will reduce office efficiency.

[0004] Universal mobile device Bluetooth linkage: This solution uses the Bluetooth signal strength of user devices such as mobile phones and smart bracelets to determine distance, automatically locking the screen when the device moves away. However, this solution relies on personal user devices and has significant limitations: Poor controllability: Enterprises cannot uniformly configure Bluetooth parameters; users may turn off Bluetooth, have devices that are out of power, or forget to bring the device, causing the function to malfunction; Insufficient security: The binding between mobile devices and user identities is weak; others can borrow the device to unlock the computer, and there is a lack of dedicated unlocking verification mechanisms; Lack of status feedback: Only the computer screen indicates the lock status, which is difficult for users to perceive in a timely manner, and they may easily miss operations due to not noticing the lock.

[0005] In office settings, enterprises' core needs for computer control focus on four dimensions: accuracy, controllability, security, and ease of use. They need to reduce misjudgments to ensure office efficiency while supporting unified management of device permissions; they need to ensure unauthorized users cannot access the system while allowing authorized users convenient operation. Existing technologies either lack control due to reliance on personal devices or are difficult to implement due to high hardware costs and poor anti-interference capabilities, thus failing to fully meet the specific needs of office scenarios.

[0006] Therefore, there is an urgent need for a computer control method and device that can adaptively adjust performance to suit office scenarios. This method and device can achieve accurate user status detection through a dedicated carrier, combined with intuitive status feedback and a secure unlocking mechanism, and can adaptively adjust performance. Summary of the Invention

[0007] In view of the above-mentioned shortcomings in the prior art, the present invention provides a computer control method and device with adaptive performance adjustment to solve the problems in the background art.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A computer control method with adaptive performance adjustment, applied to enterprise office scenarios, includes the following steps: Establish a Bluetooth connection with the company-specific and uniquely linked employee ID card, and obtain the user's performance preference information; It receives Bluetooth signals sent by office badges in real time, calculates the distance between the office badge and the computer based on the strength of the Bluetooth signal, and continuously collects distance values ​​at at least 3 time points to plot the trend curve of the distance values. The computer display screen and office badge indicator lights are linked and controlled based on distance values, trend curves, and performance preference information.

[0009] Furthermore, the performance preference information allows users to select a corresponding performance level based on their own needs; the performance levels include: Level 1: The computer's performance is independent of the Bluetooth signal and always operates in the selected power mode; only the computer display screen adaptively adjusts according to the Bluetooth signal. At the second level, the computer's performance is related to the Bluetooth signal, and both the computer's performance and the computer display are adaptively adjusted according to the Bluetooth signal.

[0010] Furthermore, the power operation modes include high-performance mode, balanced performance mode, and energy-saving mode.

[0011] Furthermore, the formula for calculating the distance value is: , Where RSSI is the real-time received Bluetooth signal strength indicator value, A is the reference signal strength value when the office badge is 1 meter away from the computer, n is the signal attenuation factor of the enterprise office environment, and k is the space correction coefficient.

[0012] Furthermore, the rules for determining the trend of a trend curve are as follows: If the distance values ​​at three consecutive time points all satisfy the condition that the difference between the distance value at the next time point and the distance value at the previous time point is a positive value, the trend of change is determined to be from near to far. If all the differences are negative, the trend is determined to be from far to near. If the difference alternates between positive and negative, it is determined to be a distance fluctuation state, and the current computer screen and office badge status are maintained.

[0013] Furthermore, the specific logic of the linkage control is as follows: If the distance value is less than the second preset threshold, the computer display screen is controlled to be in normal working state, the computer performance is kept in the selected power operation mode, and the indicator light of the office badge is controlled to switch to the second state. If the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, control the indicator light of the office badge to switch to the third state; if the trend of change is from near to far, control the computer screen to perform a preparation to turn off the screen operation, including gradually reducing the brightness; if the trend of change is from far to near, control the computer screen to perform a preparation to unlock the screen, keeping it in the wake-up state. If the distance value is greater than the first preset threshold, the indicator light on the office badge is switched to the first state, and the computer display screen is triggered to perform a screen lock operation.

[0014] Furthermore, when the computer screen is locked, if an unlock request containing password information is received, the binding relationship between the password information and the computer login account is verified; if the verification is successful, the computer is unlocked, and the indicator light of the office badge is switched to the fourth state.

[0015] Furthermore, when the performance level is the second level, the linkage control logic also includes performance adaptive adjustment: If the distance value is less than the second preset threshold, maintain the selected power operation mode; If the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, the power operation mode is reduced by one level; if it is in energy-saving mode, it remains unchanged. If the distance value is greater than the first preset threshold, the power control operation mode is set to energy-saving mode.

[0016] Furthermore, the indicator light status of the office badge is as follows: the first status is a solid red light, the second status is a solid green light, the third status is a solid yellow light, and the fourth status is a periodic flashing yellow light.

[0017] The present invention also discloses a computer control device with adaptive performance adjustment, including a memory, a processor, and a computer program stored in the memory; The steps of implementing the above-described adaptive performance adjustment computer control method when the processor executes a computer program.

[0018] Compared with the prior art, the present invention has the following advantages: 1. By establishing a Bluetooth connection with the employee's unique and exclusive office ID card, the computer is precisely bound to a specific employee, solving the problems of traditional infrared sensors being unable to identify the owner's information and the identity confusion caused by ordinary Bluetooth solutions relying on personal devices. At the same time, combined with the automatic screen locking mechanism when the distance value exceeds the first preset threshold and the password verification process when unlocking, as well as the performance adaptive adjustment logic under the second level, it effectively prevents the risk of unauthorized personnel accessing the computer after the employee leaves, and avoids ineffective energy consumption in the unattended state, forming a dual protection system of security and energy saving of identity binding, distance monitoring, performance adaptation and unlock verification.

[0019] 2. By judging the employee's status through distance changes, the computer screen and performance are adaptively adjusted. When the employee leaves, the computer screen gradually reduces brightness to reduce energy consumption, and when the employee approaches, it remains awake and gradually brightens to facilitate quick operation. This avoids operation interruptions caused by frequent screen locking and also allows employees to select performance levels according to their individual needs, avoiding operation interruptions caused by frequent adjustments. It takes into account energy-saving requirements and improves the intelligent management level of office equipment.

[0020] 3. By linking the different states of the office badge indicator lights with the computer status, employees can perceive the current status of the equipment in real time. This solves the problem that traditional solutions only provide prompts on the computer screen, making it difficult for users to notice changes in status in a timely manner. This allows employees to more conveniently grasp the dynamics of the equipment and improves the smoothness of office interaction. Attached Figure Description

[0021] Figure 1 This is a flowchart of a computer control method with adaptive performance adjustment according to the present invention; Figure 2 This is a schematic diagram of the structure of the office badge of the present invention; Figure 3 This is a diagram showing the corresponding status of the computer display screen and the office badge indicator lights in this invention. Figure 4 This is a schematic diagram of the structure of a computer control device with adaptive performance adjustment according to the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation to this application; for better illustration of the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0024] In the attached drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this application. For those ordinary skilled in the art, the specific meanings of the above terms can be understood according to specific situations.

[0025] In the description of the present invention, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the connection inside two components or the interaction relationship between two components. For those ordinary skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Embodiment 1: In some solutions, when controlling a computer, an infrared sensor is used to detect the presence of a user, which can achieve power-off when a person leaves, but cannot identify the information of the machine owner, cannot achieve power-on when a person comes, and there are drawbacks such as the screen turning off as soon as leaving a specific position; there are also some solutions that connect to the user's mobile phone, bracelet, etc. via Bluetooth, but there are still problems such as the screen turning off when the distance is greater than a certain specific threshold, and there is still a dependence on the user's personal device and a lack of status feedback: only the locked screen state is prompted through the computer screen, and it is difficult for the user to perceive it in a timely manner. The present invention, a computer control method and device with adjustable adaptive performance, is applied to the enterprise office scenario, and realizes the linkage control of the computer display screen and the office badge indicator light through Bluetooth interaction with the employee's exclusive office badge, while ensuring the unlocking security.

[0027] Such as Figure 1-4As shown, this invention discloses a computer control method and device with adaptive performance adjustment, which is mainly applied in enterprise office scenarios. It aims to achieve adaptive and coordinated control of computer performance, display screen and indicator lights by interacting with the computer via Bluetooth through the company's exclusive office ID card and combining user performance preferences, so as to take into account office efficiency, energy saving and consumption reduction and safety of use.

[0028] Specifically, this embodiment first provides a computer control method with adaptive performance adjustment, applied to an enterprise office scenario, including the following steps: Step S1: Establish a Bluetooth connection with the company-specific and uniquely associated employee ID card, and obtain the user's performance preference information; like Figure 1 , Figure 2 As shown in this embodiment of the invention, the company assigns each employee a unique office badge associated with their identity. The office badge, in addition to the existing identity recognition module, incorporates a Bluetooth module and indicator lights. In most companies, employees are assigned office badges for identity verification and access control. This embodiment connects the existing office badge to a computer via a Bluetooth module, with indicator lights displaying the status. After the computer starts, it automatically scans for matching Bluetooth signals from nearby office badges. After the employee confirms the connection through the computer's interactive interface, a stable Bluetooth communication link is established between the computer and the office badge. Simultaneously, the computer accesses a preset performance preference selection interface, allowing users to select the corresponding performance level based on their work needs. Performance levels include a first level and a second level. The first level is suitable for scenarios with consistently stable computer performance requirements, such as designers using heavy design software, where this level ensures performance remains stable regardless of environmental changes. The second level is suitable for low-load daily office work or energy-saving scenarios, such as administrative staff processing documents and sending / receiving emails, where this level allows performance to adaptively adjust to the user's status. The power operation modes corresponding to the performance level include high-performance mode, balanced performance mode, and energy-saving mode. In high-performance mode, the computer outputs its full hardware performance to support complex tasks. Balanced performance mode strikes a balance between performance and energy consumption. Energy-saving mode maintains basic operation with minimal energy consumption. Users can select the corresponding operation mode from the three modes according to their actual office scenarios. The three power operation modes corresponding to the performance level are all existing conventional technologies, and this invention aims to adaptively adjust them.

[0029] Step S2: Receive the Bluetooth signal sent by the office badge in real time, calculate the distance between the office badge and the computer based on the strength of the Bluetooth signal; continuously collect the distance values ​​at at least 3 time points, and plot the trend curve of the distance values.

[0030] During the Bluetooth connection maintenance, the computer receives the Bluetooth signal sent by the office badge in real time, and calculates the distance between the badge and the computer based on the signal strength. The formula for calculating the distance is as follows: , Among them, RSSI is the real-time received Bluetooth signal strength indicator value; A is the reference signal strength value when the office badge is 1 meter away from the computer. This value is obtained by averaging the signal strength after collecting the signal strength multiple times with the office badge and computer at a distance of 1 meter in the corporate office environment; n is the signal attenuation factor of the corporate office environment. Since obstacles such as walls and office equipment in the office area will attenuate the Bluetooth signal, this factor is determined by conducting signal attenuation tests on the office environment; k is the space correction coefficient, which is used to adapt to the layout differences of different office spaces, such as the correction between open areas and partitioned areas.

[0031] The computer collects distance values ​​at fixed time intervals. The preset collection interval can be set to 500ms. Distance values ​​are collected continuously at least 3 time points to plot the distance value trend curve, and the distance change trend is determined based on the trend curve. If the distance values ​​at three consecutive time points all have positive differences between the distance values ​​at each subsequent time point (e.g., t1 = 0.9 meters, t2 = 1.3 meters, t3 = 1.8 meters, with differences of 0.4 meters and 0.5 meters respectively, the trend is determined to be from near to far. If the differences are all negative (e.g., t1 = 2.0 meters, t2 = 1.5 meters, t3 = 1.0 meters, with differences of -0.5 meters respectively, the trend is determined to be from far to near. If the differences alternate between positive and negative (e.g., t1 = 1.0 meters, t2 = 1.3 meters, t3 = 1.1 meters, with differences of 0.3 meters and -0.2 meters), the distance is determined to be fluctuating. In this case, the current computer screen and employee badge status should be maintained to avoid frequent control operations caused by small user movements, thus improving the user experience.

[0032] Step S3: Control the computer display screen and the office badge indicator light in a coordinated manner based on the distance value and the trend of change; like Figure 3 As shown, the computer display screen and office badge indicator lights are linked and controlled based on distance values, trend curves, and performance preference information.

[0033] The linkage control is based on distance values, trend curves, and performance preference information. The first and second preset thresholds are configured by the enterprise according to the office scenario. For example, the second preset threshold can be set to 1.2 meters, corresponding to the distance range of an employee normally operating a computer, and the first preset threshold can be set to 4.0 meters, corresponding to the distance range of an employee leaving their workstation.

[0034] When the distance value is less than the second preset threshold, it indicates that the employee is within the normal operating range of the computer. At this time, the computer is within the employee's operating range. The computer display is in normal working condition, the computer's performance is maintained in the power operation mode selected by the user, and the indicator light on the office badge is switched to the second state, indicating that the current interaction state is safe and normal.

[0035] When the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, it indicates that the employee is within a medium distance range from the computer and is temporarily leaving or returning to their workstation. At this time, the indicator light on the employee badge is switched to the third state. If the trend is from near to far, it indicates that the employee is leaving. The computer screen is controlled to perform a screen-off operation, gradually reducing the screen brightness to the lock state. If the trend is from far to near, it indicates that the employee is approaching. The computer screen is controlled to gradually brighten, performing a screen-unlock operation, and remaining in a wake-up state so that the employee can quickly operate when they approach.

[0036] When the distance value exceeds the first preset threshold or the connection is lost, it indicates that the employee has moved away from the computer, posing an information security risk. At this time, the indicator light on the employee badge is switched to the first state, and the computer is triggered to perform a screen lock operation to prevent unauthorized personnel from accessing the computer content.

[0037] The linkage control logic differs depending on the performance level.

[0038] When the performance level is at the first level, the computer's performance is independent of the Bluetooth signal and always operates in the user-selected power mode. Only the computer display adaptively adjusts based on the Bluetooth signal.

[0039] When the performance level is level two, the linkage control logic also includes performance adaptive adjustment: When the distance value is less than the second preset threshold, the selected power operation mode is maintained to ensure the performance support of the current office task.

[0040] When the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, the power operation mode is downgraded by one level. If the current mode is high performance, it is downgraded to balanced performance mode. If the current mode is balanced performance mode, it is downgraded to energy saving mode. If the current mode is energy saving mode, it remains unchanged.

[0041] When the distance value is greater than the first preset threshold, the power control operation mode is switched to energy-saving mode.

[0042] Additionally, when the computer is locked (i.e., the distance exceeds the first preset threshold or the connection is lost), if an unlock request containing password information is received (e.g., an employee enters a password via keyboard), the binding relationship between the password information and the computer login account must be verified. Specifically, the entered password information is processed using the SHA-256 irreversible encryption algorithm to obtain an encrypted password string, which is then compared with a preset mapping table of login accounts and encrypted passwords. If the encrypted password matches the encrypted password of the corresponding login account in the mapping table, the verification is successful. At this point, the computer is unlocked, and the indicator light on the employee badge switches to the fourth state, indicating successful unlocking. After unlocking, the computer performance directly returns to the power operation mode selected before unlocking. The control mechanism can only be restored when the distance is less than the second preset threshold, i.e., when the employee wearing the employee badge returns to the normal operating range near the computer.

[0043] The indicator lights on the office badge correspond one-to-one with the computer's operating status. The first status is a solid red light, corresponding to an employee's long absence or a locked computer, clearly indicating that the computer is unused and locked. The second status is a solid green light, corresponding to an employee's normal work and the computer being in normal working condition, indicating that the computer can be operated normally. The third status is a solid yellow light, corresponding to a transitional state when an employee temporarily leaves or returns, indicating that the computer is ready for use or is about to turn off the screen. The fourth status is a periodic flashing yellow light, with a flashing frequency of up to 2Hz, corresponding to a successful unlock. It should be noted that the first, second, third, and fourth statuses of the indicator lights are not limited to red, green, yellow, and flashing yellow lights. This invention is only an example for illustrative purposes, and adjustments should be made as needed in actual applications.

[0044] like Figure 4 As shown, this embodiment of the invention also provides a computer control device with adaptive performance adjustment, including a memory, a processor, and a computer program stored in the memory. The memory can be a solid-state drive, a hard disk drive, or flash memory, used to store data such as the computer program, user performance preference information, threshold parameters, login account and encrypted password mapping table, ensuring stable data storage and fast retrieval. The processor can be a central processing unit (CPU), which establishes a data connection with the memory via a bus. When the device starts, it loads the computer program from the memory and runs it. During program execution, it calls the data stored in the memory to achieve steps such as Bluetooth connection with the employee ID card, distance calculation, trend judgment, linkage control, and unlock verification. The processor can also interact with the computer's display screen, input devices, and employee ID card at the hardware level through interface circuits to ensure the effective execution of each control command.

[0045] The above are merely embodiments of the present invention. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The scope of protection in this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all prior art in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A computer control method with adaptive performance adjustment, characterized in that, When applied to enterprise office scenarios, the following steps are included: Establish a Bluetooth connection with the company-specific and uniquely linked employee ID card, and obtain the user's performance preference information; It receives Bluetooth signals sent by office badges in real time, calculates the distance between the office badge and the computer based on the strength of the Bluetooth signal, and continuously collects distance values ​​at at least 3 time points to plot the trend curve of the distance values. The computer screen and office badge indicator lights are linked and controlled based on distance values, trend curves, and performance preference information.

2. The computer control method with adaptive performance adjustment according to claim 1, characterized in that: The performance preference information allows users to select a corresponding performance level based on their own needs; the performance levels include: Level 1: The computer's performance is independent of the Bluetooth signal and always operates in the selected power mode; only the computer display screen adaptively adjusts according to the Bluetooth signal. At the second level, the computer's performance is related to the Bluetooth signal, and both the computer's performance and the computer display are adaptively adjusted according to the Bluetooth signal.

3. The computer control method with adaptive performance adjustment according to claim 2, characterized in that: The power operation modes are high-performance mode, balanced performance mode, and energy-saving mode.

4. The computer control method with adaptive performance adjustment according to claim 1, characterized in that: The formula for calculating the distance value is: , Where RSSI is the real-time received Bluetooth signal strength indicator value, A is the reference signal strength value when the office badge is 1 meter away from the computer, n is the signal attenuation factor of the enterprise office environment, and k is the space correction coefficient.

5. The computer control method with adaptive performance adjustment according to claim 1, characterized in that: The trend determination rule for the trend curve is as follows: If the distance values ​​at three consecutive time points all satisfy the condition that the difference between the distance value at the next time point and the distance value at the previous time point is a positive value, the trend of change is determined to be from near to far. If all the differences are negative, the trend is determined to be from far to near. If the difference alternates between positive and negative, it is determined to be a distance fluctuation state, and the current computer screen and office badge status are maintained.

6. The computer control method with adaptive performance adjustment according to claim 5, characterized in that: The specific logic of the linkage control is as follows: If the distance value is less than the second preset threshold, the computer display screen is controlled to be in normal working state, the computer performance is kept in the selected power operation mode, and the indicator light of the office badge is controlled to switch to the second state. If the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, control the indicator light of the office badge to switch to the third state; if the trend of change is from near to far, control the computer screen to perform a preparation to turn off the screen operation, including gradually reducing the brightness; if the trend of change is from far to near, control the computer screen to perform a preparation to unlock the screen, keeping it in the wake-up state. If the distance value is greater than the first preset threshold, the indicator light on the office badge is switched to the first state, and the computer display screen is triggered to perform a screen lock operation.

7. The computer control method with adaptive performance adjustment according to claim 6, characterized in that: When the computer screen is locked, if an unlock request containing password information is received, the binding relationship between the password information and the computer login account is verified; if the verification is successful, the computer is unlocked and the indicator light of the office badge is switched to the fourth state.

8. A computer control method with adaptive performance adjustment according to claim 2 or 6, characterized in that: When the performance level is the second level, the linkage control logic also includes performance adaptive adjustment: If the distance value is less than the second preset threshold, maintain the selected power operation mode; If the distance value is greater than the second preset threshold and less than or equal to the first preset threshold, the power operation mode is reduced by one level; if it is in energy-saving mode, it remains unchanged. If the distance value is greater than the first preset threshold, the power control operation mode is set to energy-saving mode.

9. The computer control method with adaptive performance adjustment according to claim 6, characterized in that: The indicator light states of the office badge are as follows: the first state is a solid red light, the second state is a solid green light, the third state is a solid yellow light, and the fourth state is a periodic flashing yellow light.

10. A computer control device with adaptive performance adjustment, characterized in that, This includes memory, processor, and computer programs stored in memory; When the processor executes a computer program, it implements the steps of the computer control method with adaptive performance adjustment as described in any one of claims 1 to 9.