Workbench PID illumination height control method integrating illumination adjustment

Abstract

The invention relates to the technical field of intelligent illumination control, in particular to a worktable PID illumination height control method integrating illumination adjustment, which comprises the following steps: S1, continuously monitoring the existence state of a user in a worktable using area through an infrared sensor; s2, collecting a desktop height measurement value and a working area illumination measurement value in real time; s3, inputting the desktop height measurement value into a pre-stored height-illuminance mapping relation table, and outputting a corresponding target illuminance value; s4, calculating an output illumination deviation value; s5, the illumination deviation value is input into a PID controller, and feedforward compensation is carried out in combination with the desktop height change rate; and S6, synchronously controlling a lamp pitch angle and a luminous flux output value according to the lamp adjustment parameters. According to the invention, the illumination of the working area is adjusted in real time and feedforward compensation is carried out in combination with the height change of the desktop, so that the illumination is always stable and accurate, and the response speed, comfort and energy efficiency of the illumination system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent lighting control, and particularly relates to a worktable PID lighting height control method integrated with illumination adjustment. BACKGROUND

[0002] With the continuous development of intelligent technology, the lighting control of the working environment is gradually developing towards automation and intelligence. Traditional lighting systems mostly adopt fixed illumination levels, which fail to dynamically adjust according to actual needs or environmental changes, resulting in waste of energy consumption and instability of lighting effects. In particular, in local lighting environments such as worktables, the flexibility and accuracy of illumination adjustment are crucial for improving work efficiency and comfort.

[0003] In the prior art, although some intelligent lighting systems can adjust according to the sensed ambient light or the presence state of personnel, most systems are only based on simple light sensors or motion sensors and fail to consider the influence of the change in the height of the desktop on the illumination, so they cannot effectively adjust the lighting effect according to the different heights of the desktop in real time, thereby failing to fully optimize the lighting experience. Therefore, there is an urgent need for a worktable PID lighting height control method integrated with illumination adjustment to solve the above problems. SUMMARY

[0004] In order to achieve the above purposes, the present application provides a worktable PID lighting height control method integrated with illumination adjustment.

[0005] A worktable PID lighting height control method integrated with illumination adjustment, comprising the following steps: S1: continuously monitoring the presence state of a user in the use area of a worktable by an infrared sensor and outputting a user presence signal; S2: when the user presence signal of S1 is activated, real-time acquisition of a desktop height measurement value and a work area illumination measurement value; S3: inputting the desktop height measurement value into a pre-stored height-illumination mapping relationship table and outputting a corresponding target illumination value; S4: calculating the difference between the target illumination value and the work area illumination measurement value and outputting an illumination deviation value; S5: inputting the illumination deviation value into a PID controller, combining the change rate of the desktop height for feedforward compensation, and outputting a lamp adjustment parameter; S6: synchronously controlling the pitch angle and the luminous flux output value of the lamp according to the lamp adjustment parameter output by S5.

[0006] Optionally, S1 specifically comprises: S11: fixedly installing an infrared sensor above the use area of the worktable; S12: generating an electrical signal according to the captured thermal radiation signal by the infrared sensor. When the intensity of the electrical signal output by the infrared sensor exceeds a preset threshold, it indicates that a user is present in the working area, and then outputs a user presence signal. When the electrical signal strength is lower than the preset threshold, it indicates that no user has been detected in the working area, and a no-user-in-place signal is output.

[0007] Optionally, S2 specifically includes: S21: When the user presence signal in S1 is received, the desktop height sensor is activated. The desktop height sensor is a laser displacement sensor or an ultrasonic sensor, which is used to monitor the vertical distance between the desktop and the ground in real time in the work area to obtain the current desktop height. S22: Simultaneously activate the illuminance sensor in the work area to measure the light intensity in the work area in real time based on the photoelectric effect, so as to obtain the current illuminance value of the work area.

[0008] Optionally, S3 specifically includes: S31: When the user presence signal in S1 is received, the pre-stored height-illuminance mapping table is called, which records the relationship between different desktop heights and corresponding illuminance values. S32: Input the real-time collected desktop height value into the height-illuminance mapping table, and find and output the target illuminance value corresponding to the current desktop height based on the data in the mapping table; S33: If the desktop height value is not within the preset range in the mapping table, the target illuminance value corresponding to the desktop height is calculated by linear interpolation algorithm.

[0009] Optionally, S31 specifically includes: S311: Obtain actual measurement data of illuminance values ​​in the work area at different desktop heights through experiments, including the pairing results of multiple desktop heights and corresponding illuminance values; S312: Based on experimental data, a linear regression algorithm was used to calculate the relationship model between desktop height and illuminance value. The expression is as follows: ,in, This is the target illuminance value corresponding to the height of the desktop; It is the slope coefficient in a linear regression model; It is the intercept in a linear regression model; It is the desktop height; S313: Apply the relational model to the pre-stored height-illuminance mapping table to store paired data of multiple desktop heights and target illuminance values, forming the height-illuminance mapping table.

[0010] Optionally, S33 specifically includes: S331: When the desktop height value is not within the preset range in the mapping table, first determine the two adjacent known desktop height values, denoted as... and and obtain the corresponding target illuminance value. and ; S332: Employs a linear interpolation algorithm based on adjacent height values. and and the corresponding target illuminance value and Calculate the target illuminance value corresponding to the desktop height that is not within the preset range. ; S333: Output the calculated target illuminance value This serves as a reference value for illuminance adjustment.

[0011] Optionally, the expression for the illuminance deviation value is: ,in, This is the illuminance deviation value, representing the difference between the current illuminance and the target illuminance; It is the target illuminance value; It is the current illuminance value of the working area obtained through S2.

[0012] Optionally, S5 specifically includes: S51: The illuminance deviation value calculated in S4 Input the PID controller, and output the lamp adjustment parameters according to the illuminance deviation value to ensure that the illuminance in the working area reaches the target value; S52: Calculate the rate of change of the desktop height , used for feedforward compensation; S53: Rate of change of desktop height deviation value of illuminance Combined, the output of the PID controller is adjusted to make predictive corrections based on the degree deviation; S54: The PID controller outputs luminaire adjustment parameters based on the feedforward compensation results, including pitch angle adjustment parameters and luminous flux adjustment parameters.

[0013] Optionally, S53 specifically includes: S531: Rate of change of desktop height deviation value of illuminance Combined, according to the preset weighting coefficients and Calculate the corrected illuminance deviation value It is used for predictive correction of control bias, and the calculation formula is: ; S532: The corrected illuminance deviation value Input the PID controller and adjust its output.

[0014] Optionally, S6 specifically includes: S61: Adjust the tilt angle of the lamp according to the pitch angle adjustment parameters to adjust the direction of the beam illumination; S62: Adjust the luminous flux output value of the lamp according to the luminous flux adjustment parameters, that is, control the brightness output of the lamp to ensure that the illuminance reaches the preset target; S63: Synchronously control the pitch angle and luminous flux output of the luminaire to achieve coordinated adjustment of light intensity and illumination angle.

[0015] The beneficial effects of this invention are: This invention, by precisely adjusting the illuminance of the work area, can flexibly adjust the pitch angle and luminous flux output of the lamps based on real-time collected information on desktop height and illuminance deviation, ensuring that the work area always maintains the best lighting effect; by using a PID controller combined with the rate of change of desktop height for feedforward compensation, it can predict the trend of illuminance change in advance, optimize the response speed and stability of the lighting system, and avoid illuminance fluctuations.

[0016] This invention automatically adjusts the illuminance according to changes in desktop height, ensuring that the light intensity always meets work requirements and effectively reducing energy consumption; through intelligent adjustment and real-time compensation, it improves the intelligence level of the lighting system and enhances work efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Fig. 1 This is a schematic diagram of a PID lighting height control method for a workbench according to an embodiment of the present invention; Fig. 2 This is a flowchart illustrating the output lighting adjustment parameters according to an embodiment of the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0020] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0021] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0022] like Figs. 1-2 As shown, a method for PID lighting height control of a workbench with integrated illumination adjustment includes the following steps: S1: Continuously monitors the user's presence status in the workbench area using an infrared sensor and outputs a user presence signal; S1 specifically includes: S11: An infrared sensor is fixedly installed above the workbench's usage area. The infrared sensor uses a device based on the principle of infrared thermal imaging to capture the heat radiation generated by the user and monitor in real time whether there is a user in the work area. S12: An electrical signal is generated based on the captured thermal radiation signal by an infrared sensor. The strength of the signal is related to the user's body temperature and the intensity of thermal radiation. When the intensity of the electrical signal output by the infrared sensor exceeds a preset threshold, it indicates that a user is present in the working area, and then outputs a user presence signal. When the electrical signal strength is lower than the preset threshold, it indicates that no user is detected in the work area, and then outputs a no-user-present signal. By reasonably deploying infrared sensors above the workbench's usage area, it is possible to accurately and in real time monitor whether the user is present, ensuring that the lighting system automatically adjusts according to the user's presence, thereby improving the user experience and energy-saving effect.

[0023] S2: When the user presence signal of S1 is activated, the desktop height measurement value and the work area illuminance measurement value are collected in real time. S2 specifically includes: S21: Upon receiving the user presence signal in S1, activate the desktop height sensor. The desktop height sensor, which can be a laser displacement sensor or an ultrasonic sensor, is used to monitor the vertical distance between the desktop and the ground in real time within the workbench's usage area, thereby obtaining the current desktop height. The desktop height calculation formula is: ,in, It is the desktop height, which is the vertical distance between the surface of the workbench and the ground; This is the current vertical distance measured by the sensor, representing the distance between the sensor and the desktop; It is a fixed offset between the sensor and the desktop surface, a value that is calibrated during sensor installation; S22: Simultaneously activate the illuminance sensor in the work area to measure the light intensity in the work area in real time based on the photoelectric effect, so as to obtain the current illuminance value of the work area for subsequent processing and adjustment of the illuminance output of the lamps; through precise measurement of desktop height and work area illuminance, it can reflect changes in the working environment in real time, provide accurate parameter support for subsequent lighting control, and ensure efficient adjustment of the lighting system and real-time response to user needs.

[0024] S3: Input the desktop height measurement value into the pre-stored height-illuminance mapping table and output the corresponding target illuminance value; S3 specifically includes: S31: When the user presence signal in S1 is received, the pre-stored height-illuminance mapping table is called. The height-illuminance mapping table records the relationship between different desktop heights and corresponding illuminance values. S32: Input the real-time collected desktop height value into the height-illuminance mapping table, and find and output the target illuminance value corresponding to the current desktop height based on the data in the mapping table; S33: If the desktop height value is not within the preset range in the mapping table, the target illuminance value corresponding to the desktop height is calculated by a linear interpolation algorithm, and the value is output as a reference target for illuminance adjustment. The above steps, by using a pre-stored height-illuminance mapping table, can accurately adjust the illuminance value according to the current desktop height, achieve more precise lighting control, and ensure that the lighting in the work area always meets the user's needs and environmental changes.

[0025] S31 specifically includes: S311: Obtain actual measurement data of illuminance values ​​in the work area at different desktop heights through experiments, including the pairing results of multiple desktop heights and corresponding illuminance values; S312: Based on experimental data, a linear regression algorithm was used to calculate the relationship model between desktop height and illuminance value. The expression is as follows: ,in, This is the target illuminance value corresponding to the height of the desktop; It is the slope coefficient in the linear regression model, representing the degree of influence of changes in desktop height on the degree of influence; It is the intercept in the linear regression model, representing the illuminance value when the table height is zero; It is the desktop height; S313: Apply the relational model to the pre-stored height-illuminance mapping table to store pairing data of multiple desktop heights and target illuminance values, forming a height-illuminance mapping table for subsequent use; through the construction method of the height-illuminance mapping table, a mathematical relationship can be accurately established between different desktop heights and corresponding illuminance values, providing reliable data support for the automatic adjustment lighting system and ensuring that the lighting system is accurately controlled according to changes in user needs and working environment.

[0026] Table 1. Altitude-Illuminance Mapping Relationship

[0027] In Table 1 above, the "desktop height" column represents the vertical distance between the workbench surface and the ground, in centimeters. This data is collected by the sensor in step S2 to measure the current desktop height in real time. The "target illuminance" column represents the target illuminance value of the work area at the corresponding desktop height. These values ​​are calculated based on the experimental data or simulations in step S31 to obtain the mapping relationship between desktop height and illuminance. By constructing such a height-illuminance mapping table, the illuminance can be adjusted in real time according to the desktop height to provide optimal lighting for the work environment. This method ensures the high efficiency of the lighting system, avoids unnecessary energy consumption, and ensures that the work area has appropriate lighting intensity, thereby improving user comfort and work efficiency.

[0028] S33 specifically includes: S331: When the desktop height value is not within the preset range in the mapping table, first determine the two adjacent known desktop height values, denoted as... and and obtain the corresponding target illuminance value. and ,in, ,and and They are heights and The corresponding target illuminance value; S332: Employs a linear interpolation algorithm based on adjacent height values. and and the corresponding target illuminance value and Calculate the target illuminance value corresponding to the desktop height that is not within the preset range. The calculation formula is: ,in, Desktop height not within the preset range The corresponding target illuminance value; and They are heights and The corresponding target illuminance value; It is the desktop height that is not within the preset range of the mapping table; and Is with The two closest known desktop heights; S333: Output the calculated target illuminance value The above steps, using this interpolation algorithm, can accurately calculate the corresponding target illuminance value when the desktop height is outside the preset range, ensuring that the lighting system can automatically adjust the illuminance according to the current environment even under non-standard desktop height conditions, thus guaranteeing optimal working lighting.

[0029] S4: Calculate the difference between the target illuminance value and the measured illuminance value in the working area, and output the illuminance deviation value; The expression for the illuminance deviation value is: ,in, This is the illuminance deviation value, representing the difference between the current illuminance and the target illuminance; It is the target illuminance value; The current illuminance value of the working area is obtained through S2; by accurately calculating the illuminance deviation value, the difference between the current illuminance and the target illuminance can be effectively assessed, providing accurate feedback for PID control and ensuring that the lighting system can adjust in a timely manner according to the deviation value.

[0030] S5: Input the illuminance deviation value into the PID controller, combine it with the rate of change of desktop height for feedforward compensation, and output the lamp adjustment parameters. S5 specifically includes: S51: The illuminance deviation value calculated in S4 Input the PID controller, and output the lamp adjustment parameters according to the illuminance deviation value to ensure that the illuminance in the working area reaches the target value; S52: Calculate the rate of change of the desktop height Used for feedforward compensation, the rate of change The difference between the desktop height values ​​at the previous moment and the current moment is calculated and divided by the time interval to obtain the value, which represents the rate of change of the desktop height. S53: Rate of change of desktop height deviation value of illuminance By combining and adjusting the output of the PID controller, predictive corrections can be made based on the degree deviation, thereby compensating in advance for the impact of degree adjustment due to changes in desktop height. S54: The PID controller outputs luminaire adjustment parameters, including pitch angle adjustment parameters and luminous flux adjustment parameters, based on the results of feedforward compensation. These parameters are used to adjust the lighting intensity in the work area to achieve the target illuminance. By combining the above steps with the rate of change of desktop height for feedforward compensation, the PID controller can more accurately predict the trend of illuminance change and make adjustments in advance. This improves the response speed and stability of the lighting system, ensures that the illuminance in the work area is always maintained at an ideal level, and enhances the user experience and system energy efficiency.

[0031] S51 specifically includes: S511: Receive the illuminance deviation value calculated in S4 And pass it as an input signal to the PID controller; S512: The PID controller calculates the illuminance deviation value. Perform proportional, integral, and derivative calculations, generating proportional, integral, and derivative outputs respectively. The specific calculation process is as follows: ; ; ;in: It is a proportional control output, meaning the output is proportional to the illuminance deviation value; It is the integral control output, which represents the output generated after integrating the control deviation value, and accumulating historical errors; It is a differential control output, representing the response to the rate of change of the control deviation value, and handling rapidly changing errors; These are the gain coefficients of the proportional, integral, and derivative controllers, respectively, which adjust the controller's response to deviations. S513: The PID controller outputs a proportional signal. Integral output and differential output Add them together to get the total control output. This refers to the lighting adjustment parameters, which are expressed as: ,in, These are the adjustment parameters of the luminaire, indicating the adjustment of the luminaire's output value (such as luminous flux, angle, etc.), used to adjust the illuminance level of the work area; S514: Adjustment parameters of the lighting fixtures based on the calculations The control system outputs corresponding lighting adjustment signals to adjust the pitch angle and luminous flux output value of the lighting fixtures to ensure that the illuminance in the working area reaches the target value.

[0032] S53 specifically includes: S531: Rate of change of desktop height deviation value of illuminance Combined, according to the preset weighting coefficients and Calculate the corrected illuminance deviation value It is used for predictive correction of control bias, and the calculation formula is: ; S532: The corrected illuminance deviation value Input the PID controller and adjust its output to adjust the illuminance based on the predictive correction results to cope with rapid changes in desktop height. By combining the rate of change of desktop height with the illuminance deviation value, the PID controller can adjust the illuminance in advance according to the trend of desktop height change, optimize the response time and accuracy of the lighting system, and thus achieve predictive correction of illuminance changes.

[0033] The PID controller outputs lighting adjustment parameters based on the feedforward compensation results, including: Based on the corrected illuminance deviation value The PID controller outputs the pitch angle adjustment parameters of the lamps respectively. and luminous flux adjustment parameters The calculation is performed through the following steps: Pitch angle adjustment, the PID controller adjusts based on the corrected illuminance deviation value. Calculate the required lamp tilt angle adjustment parameters. The adjustment parameters are proportional to the illuminance deviation. The specific calculation formula is as follows: ,in, It is the pitch angle adjustment value of the lamp, which indicates the tilt angle of the lamp relative to the horizontal plane; It is a proportionality coefficient related to the luminaire's adjustment sensitivity, indicating the degree to which changes in illuminance affect the luminaire's pitch angle; Luminous flux adjustment, the PID controller adjusts the illuminance deviation value accordingly. Calculate luminous flux adjustment parameters The formula is: ,in: It is the luminous flux adjustment value of the lamp, which indicates the intensity of the light output by the lamp; It is a proportionality coefficient related to the luminous flux adjustment sensitivity of the lamp, indicating the degree of influence of illuminance changes on luminous flux output.

[0034] S6: Synchronously control the lamp tilt angle and luminous flux output value according to the lamp adjustment parameters output by S5; S6 specifically includes: S61: Based on the pitch angle adjustment parameters, control the tilt angle of the lamp to adjust the direction of the beam illumination, ensuring that the illumination area and illumination angle of the lamp meet the target requirements; S62: Adjust the luminous flux output value of the lamp according to the luminous flux adjustment parameters, that is, control the brightness output of the lamp to ensure that the illuminance reaches the preset target; S63: Synchronously control the pitch angle and luminous flux output of the luminaires to achieve coordinated adjustment of light intensity and illumination angle, ensuring stable illuminance in the work area and meeting target illuminance requirements; the above steps, by synchronously adjusting the pitch angle and luminous flux output of the luminaires, ensure that the lighting system can quickly respond to environmental changes, accurately adjust the illuminance level, optimize the lighting effect in the work area, and improve user comfort and work efficiency.

[0035] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0036] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for controlling the PID lighting height of a workbench with integrated illumination adjustment, characterized in that, Includes the following steps: S1: Continuously monitors the user's presence status in the workbench area using an infrared sensor and outputs a user presence signal; S2: When the user presence signal of S1 is activated, the desktop height measurement value and the work area illuminance measurement value are collected in real time. S3: Input the desktop height measurement value into the pre-stored height-illuminance mapping table and output the corresponding target illuminance value; S4: Calculate the difference between the target illuminance value and the measured illuminance value in the working area, and output the illuminance deviation value; S5: Input the illuminance deviation value into the PID controller, combine it with the rate of change of desktop height for feedforward compensation, and output the lamp adjustment parameters. S6: Synchronously control the lamp tilt angle and luminous flux output value based on the lamp adjustment parameters output by S5.

2. The method for PID lighting height control of a workbench with integrated illumination adjustment according to claim 1, characterized in that, S1 specifically includes: S11: An infrared sensor is fixedly installed above the workbench's usage area; S12: Generates an electrical signal based on the captured thermal radiation signal using an infrared sensor; When the intensity of the electrical signal output by the infrared sensor exceeds a preset threshold, it indicates that a user is present in the working area, and then outputs a user presence signal. When the electrical signal strength is lower than the preset threshold, it indicates that no user has been detected in the working area, and a no-user-in-place signal is output.

3. The PID lighting height control method for an integrated light-adjustable workbench according to claim 1, characterized in that, S2 specifically includes: S21: When the user presence signal in S1 is received, the desktop height sensor is activated. The desktop height sensor is a laser displacement sensor or an ultrasonic sensor, which is used to monitor the vertical distance between the desktop and the ground in real time in the work area to obtain the current desktop height. S22: Simultaneously activate the illuminance sensor in the work area to measure the light intensity in the work area in real time based on the photoelectric effect, so as to obtain the current illuminance value of the work area.

4. The PID lighting height control method for an integrated light-adjustable workbench according to claim 1, characterized in that, S3 specifically includes: S31: When the user presence signal in S1 is received, the pre-stored height-illuminance mapping table is called, which records the relationship between different desktop heights and corresponding illuminance values. S32: Input the real-time collected desktop height value into the height-illuminance mapping table, and find and output the target illuminance value corresponding to the current desktop height based on the data in the mapping table; S33: If the desktop height value is not within the preset range in the mapping table, the target illuminance value corresponding to the desktop height is calculated by linear interpolation algorithm.

5. The PID lighting height control method for an integrated lighting adjustment workbench according to claim 4, characterized in that, S31 specifically includes: S311: Obtain actual measurement data of illuminance values ​​in the work area at different desktop heights through experiments, including the pairing results of multiple desktop heights and corresponding illuminance values; S312: Based on experimental data, a linear regression algorithm was used to calculate the relationship model between desktop height and illuminance value. The expression is as follows: ,in, This is the target illuminance value corresponding to the height of the desktop; It is the slope coefficient in a linear regression model; It is the intercept in a linear regression model; It is the desktop height; S313: Apply the relational model to the pre-stored height-illuminance mapping table to store paired data of multiple desktop heights and target illuminance values, forming the height-illuminance mapping table.

6. The PID lighting height control method for an integrated light-adjustable workbench according to claim 5, characterized in that, Specifically, S33 includes: S331: When the desktop height value is not within the preset range in the mapping table, first determine the two adjacent known desktop height values, denoted as... and and obtain the corresponding target illuminance value. and ; S332: Employs a linear interpolation algorithm based on adjacent height values. and and the corresponding target illuminance value and Calculate the target illuminance value corresponding to the desktop height that is not within the preset range. ; S333: Output the calculated target illuminance value This serves as a reference value for illuminance adjustment.

7. The method for PID lighting height control of a workbench with integrated illumination adjustment according to claim 1, characterized in that, The expression for the illuminance deviation value is: ,in, This is the illuminance deviation value, representing the difference between the current illuminance and the target illuminance; It is the target illuminance value; It is the current illuminance value of the working area obtained through S2.

8. The method for PID lighting height control of a workbench with integrated illumination adjustment according to claim 9, characterized in that, S5 specifically includes: S51: The illuminance deviation value calculated in S4 Input the PID controller, and output the lamp adjustment parameters according to the illuminance deviation value to ensure that the illuminance in the working area reaches the target value; S52: Calculate the rate of change of the desktop height , used for feedforward compensation; S53: Rate of change of desktop height deviation value of illuminance Combined, the output of the PID controller is adjusted to make predictive corrections based on the degree deviation; S54: The PID controller outputs luminaire adjustment parameters based on the feedforward compensation results, including pitch angle adjustment parameters and luminous flux adjustment parameters.

9. A method for PID lighting height control of a workbench with integrated illumination adjustment according to claim 8, characterized in that, Specifically, S53 includes: S531: Rate of change of desktop height deviation value of illuminance Combined, according to the preset weighting coefficients and Calculate the corrected illuminance deviation value It is used for predictive correction of control bias, and the calculation formula is: ; S532: The corrected illuminance deviation value Input the PID controller and adjust its output.

10. A method for controlling the PID lighting height of a workbench with integrated illumination adjustment according to claim 9, characterized in that, S6 specifically includes: S61: Adjust the tilt angle of the lamp according to the pitch angle adjustment parameters to adjust the direction of the beam illumination; S62: Adjust the luminous flux output value of the lamp according to the luminous flux adjustment parameters, that is, control the brightness output of the lamp to ensure that the illuminance reaches the preset target; S63: Synchronously control the pitch angle and luminous flux output of the luminaire to achieve coordinated adjustment of light intensity and illumination angle.

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