Hydraulic lifting slow start and slow stop automatic control system and control method for dental chair

Abstract

This invention provides an automatic control system and method for a hydraulically raised dental chair with a slow start and slow stop mechanism. The system includes: a data acquisition module for correcting the initial height of the dental chair based on the user's height data and acquiring weight parameters for different users based on the initial height correction results; a start / stop control module for constructing a differential start / stop control strategy library based on execution standards and the weight parameters of different users, and conducting multi-dimensional simulated start / stop tests on the hydraulic raising device based on this strategy library; and an optimization and reset module for optimizing the differential start / stop control strategy library based on the multi-dimensional simulated start / stop test results, and automatically controlling the dental chair with a slow start and slow stop based on the optimization results. This significantly reduces vibration during start-up and stop, improves the smoothness of start-up and stop, enhances the user experience, and improves the control effect of the dental chair.

Description

Technical Field

[0001] This invention relates to the field of equipment control and adjustment technology, and in particular to an automatic control system and control method for hydraulic lifting and slow-starting of a dental chair. Background Technology

[0002] Dental chairs are mainly used for oral surgery and examination and treatment of oral diseases. In actual use, dental chairs need to be adjusted to different postures to accommodate different supine positions of patients. The current dental chair posture adjustment is achieved by designing hydraulic cylinders. The posture of the dental chair is adjusted by extending and retracting the hydraulic cylinders.

[0003] However, the current dental chairs have the disadvantage that they cannot automatically adjust their height according to the user's height, resulting in an inconvenient experience for the patient. At the same time, a common drawback of existing dental chairs is that they are not stable when starting up, and there is obvious vibration when the chair starts and stops, which makes the patient feel uncomfortable and greatly reduces the control of the dental chair.

[0004] Therefore, in order to overcome the above-mentioned defects, the present invention provides an automatic control system and control method for hydraulic lifting of dental chairs with slow start and slow stop. Summary of the Invention

[0005] This invention provides an automatic control system and method for a hydraulically raised, gently starting and stopping dental chair. The system adjusts the initial height of the dental chair based on the user's height, facilitating entry and exit for users of different heights. After the initial height adjustment, it collects the weight parameters of different users, allowing for the development of differentiated gently starting and stopping control strategies. Next, based on the execution standard and the user's weight parameters, the corresponding gently starting and stopping control strategies for different users are determined. The hydraulic raising device in the dental chair is then simulated according to the determined strategies, enabling accurate and effective testing of the gently starting and stopping control effect. Finally, the gently starting and stopping control strategy library is optimized based on the simulation test results, ultimately achieving automatic gently starting and stopping control of the dental chair. This significantly reduces vibration during startup and shutdown, improves the smoothness of startup and shutdown, enhances the user experience, and improves the overall control effect of the dental chair.

[0006] This invention provides an automatic control system for hydraulic lifting and slow-starting of a dental chair, comprising:

[0007] The data acquisition module is used to correct the initial height of the dental chair based on the user's height data, and to collect the weight parameters of different users based on the initial height correction results;

[0008] The start-stop control module is used to build a differential start-stop control strategy library based on the execution standard and the weight parameters of different users, and to conduct multi-dimensional simulation start-stop tests on the hydraulic lifting device based on the differential start-stop control strategy library;

[0009] The optimization and reset module is used to optimize the differential start-stop control strategy library based on the results of multi-dimensional simulation start-stop tests, and to automatically control the dental chair to start and stop slowly based on the optimization results.

[0010] Preferably, a hydraulic lifting and slow-start automatic control system for a dental chair includes a data acquisition module comprising:

[0011] The data acquisition unit is used to dynamically capture the user's entire body based on the camera when the user enters the detection area, and to obtain a full-body image of the user based on the dynamic capture results.

[0012] Image parsing unit, used for:

[0013] The user's pose and outline are determined based on the user's full-body image, and multiple evaluation key points are selected based on the user's pose and outline.

[0014] The image distance between key evaluation points is determined based on the user's full-body image, and the positional parameters of the user's body parts are determined based on the user's pose.

[0015] The height data determination unit is used to analyze the image distance between evaluation key points and the positional parameters of user body parts based on a neural network model to obtain user height data, record and store the user height data, and build a height database.

[0016] Preferably, a hydraulic lifting and slow-start automatic control system for a dental chair includes a data acquisition module comprising:

[0017] The posture monitoring unit is used to obtain the user's sitting posture in the dental chair based on the initial height correction result, and to determine the user's stability in the dental chair based on the sitting posture.

[0018] The weight acquisition unit is used for:

[0019] When the stability reaches the preset condition, the user's weight parameters are collected based on the weight sensor, and the collected weight parameters are deduplicated and matched with known weight parameters.

[0020] Weight parameters in different dimensions are obtained based on the deduplication matching results.

[0021] Preferably, a hydraulic lifting and slow-start automatic control system for a dental chair includes a start / stop control module comprising:

[0022] The data analysis unit is used to obtain the execution standards set by the management terminal for the dental chair, and to parse the text content of the execution standards to obtain the working height of the dental chair under different working conditions.

[0023] The start / stop strategy formulation unit is used for:

[0024] Obtain the factory configuration parameters and safety considerations of the dental chair, and determine the minimum start-stop standards corresponding to the weight parameters of different users based on the factory configuration parameters and safety considerations;

[0025] Based on the minimum start-stop standard, the working height of the dental chair under different working conditions is divided into stages, and based on the stage division results, the range of slow start-stop speed variation of the dental chair under no vibration is determined.

[0026] Based on the results of the change range of the slow start and slow stop speed, the amount of oil passing through the hydraulic lifting device in the dental chair at each stage is determined, and the quantitative index value of the graded opening of the solenoid valve in the hydraulic lifting device is determined based on the amount of oil passing.

[0027] The strategy library construction unit is used to determine the slow start and slow stop control strategy for different users' weight parameters based on the graded opening quantitative index value, and to obtain a differentiated slow start and slow stop control strategy library based on the slow start and slow stop control strategy.

[0028] Preferably, a hydraulic lifting and slow-start automatic control system for dental chairs includes a strategy library construction unit comprising:

[0029] Extended strategies construct sub-units for:

[0030] The text parsing results based on the execution standard determine the backrest tilt of the dental chair for users with different body proportions, and generate angle adjustment instructions corresponding to users with different body proportions based on the backrest tilt.

[0031] At the same time, the system acquires real-time weight feedback parameters from the weight sensor on the dental chair, and generates a dental chair reset command when the real-time weight feedback parameters return to zero for a set threshold time.

[0032] The strategy library improves the sub-unit, which is used to build a slow start and slow stop extended control strategy based on angle adjustment commands and dental chair reset commands, and connects the slow start and slow stop extended control strategy with the slow start and slow stop control strategy in the differential slow start and slow stop control strategy library.

[0033] This invention provides an automatic control method for the hydraulic lifting and slow-start / slow-stop mechanism of a dental chair, comprising:

[0034] The initial height of the dental chair is corrected based on the user's height data, and the weight parameters of different users are collected based on the initial height correction results.

[0035] A differential start-stop control strategy library was constructed based on the execution standards and the weight parameters of different users, and a multi-dimensional simulation start-stop test was conducted on the hydraulic lifting device based on the differential start-stop control strategy library;

[0036] Based on the results of multi-dimensional simulation start-stop tests, the differential start-stop control strategy library was optimized, and the dental chair was automatically controlled for slow start-stop based on the optimization results.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. By initially adjusting the height of the dental chair based on the user's height, it facilitates the entry and exit of users of different heights. After the initial height adjustment, the weight parameters of different users are collected to facilitate the development of differentiated start-stop control strategies for the dental chair based on their weight. Secondly, based on the execution standards and the weight parameters of different users, the corresponding start-stop control strategies for different users are determined. The hydraulic lifting device in the dental chair is simulated according to the determined start-stop control strategies to accurately and effectively test the effect of the start-stop control. Finally, the start-stop control strategy library is optimized based on the simulation test results, ultimately achieving automatic start-stop control of the dental chair based on the optimization results. This significantly reduces the vibration of the dental chair during start-up and stop, improves the smoothness of start-stop operation, enhances the user experience, and improves the control effect of the dental chair.

[0039] 2. By analyzing the execution standards set for the dental chair by the management terminal, the working height of the dental chair under different working conditions can be accurately and effectively determined. Secondly, by effectively determining the minimum start-stop standards corresponding to the weight parameters of different users based on the factory configuration parameters and safety considerations of the dental chair, it is possible to divide the lifting process of the dental chair into stages according to the minimum start-stop standards. Based on the stage division results, the range of slow start and slow stop speed changes of the dental chair in different stages can be locked. Finally, based on the determined range of slow start and slow stop speed changes, the amount of oil passing through the hydraulic lifting device in the dental chair can be locked. Ultimately, the slow start and slow stop control strategy of the dental chair can be accurately and effectively formulated according to the amount of oil passing through different stages, which greatly reduces the vibration of the dental chair during start-up and stop, improves the smoothness of start-up and stop, and enhances the user experience.

[0040] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0041] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0042] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0043] Figure 1 This is a structural diagram of an automatic control system for hydraulic lifting and slow-starting of a dental chair according to an embodiment of the present invention;

[0044] Figure 2 This is a structural diagram of a module in an automatic control system for hydraulic lifting and slow-starting of a dental chair, as described in an embodiment of the present invention.

[0045] Figure 3 This is a flowchart of an automatic control method for the hydraulic lifting and slow-starting of a dental chair according to an embodiment of the present invention. Detailed Implementation

[0046] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0047] Example 1:

[0048] This embodiment provides an automatic control system for the hydraulic lifting and slow-start / slow-stop mechanism of a dental chair, such as... Figure 1 As shown, it includes:

[0049] The data acquisition module is used to correct the initial height of the dental chair based on the user's height data, and to collect the weight parameters of different users based on the initial height correction results;

[0050] The start-stop control module is used to build a differential start-stop control strategy library based on the execution standard and the weight parameters of different users, and to conduct multi-dimensional simulation start-stop tests on the hydraulic lifting device based on the differential start-stop control strategy library;

[0051] The optimization and reset module is used to optimize the differential start-stop control strategy library based on the results of multi-dimensional simulation start-stop tests, and to automatically control the dental chair to start and stop slowly based on the optimization results.

[0052] In this embodiment, adjusting the initial height of the dental chair based on the user's height data refers to adjusting the height of the dental chair according to the different heights of different users. This height adjustment is to facilitate users of different heights to get in and out of the dental chair, and is unrelated to the dentist's requirements for adjusting the height of the dental chair during the patient's treatment.

[0053] In this embodiment, the weight parameter refers to the weight of different users.

[0054] In this embodiment, the execution criteria are pre-set and are used to characterize the optimal height that the dental chair needs to maintain during use, as well as the degree of backrest tilt.

[0055] In this embodiment, the differential start-stop control strategy library refers to a database constructed using start-stop control strategies corresponding to users with different weight parameters. Different weights correspond to different start-stop control strategies, with the aim of ensuring that the dental chair can adapt to users of different weights.

[0056] In this embodiment, the hydraulic lifting device is pre-set and installed at the bottom of the dental chair for raising and lowering the dental chair.

[0057] In this embodiment, the multidimensional simulated start-stop test refers to the gradual start-stop control for users of different weights to ensure that the dental chair can operate stably and efficiently.

[0058] In this embodiment, optimizing the differential start-stop control strategy library based on the multidimensional simulation start-stop test results refers to adjusting and improving the differential start-stop control strategies that have defects in the differential start-stop control strategy library according to the multidimensional simulation start-stop test results, so as to ensure that the dental chair can start and stop stably.

[0059] The working principle and beneficial effects of the above technical solution are as follows: First, the initial height of the dental chair is corrected based on the user's height, facilitating entry and exit for users of different heights. Second, after the initial height correction, the weight parameters of different users are collected, allowing for the development of differentiated start-stop control strategies for the dental chair based on these parameters. Third, based on the execution standards and the weight parameters of different users, the corresponding start-stop control strategies are determined. Fourth, the hydraulic lifting device in the dental chair is simulated according to the determined start-stop control strategies, enabling accurate and effective testing of the start-stop control effect. Finally, the start-stop control strategy library is optimized based on the simulation test results, ultimately achieving automatic start-stop control of the dental chair based on the optimized results. This significantly reduces vibration during start-up and stop, improves the smoothness of start-stop operation, enhances the user experience, and improves the control effect of the dental chair.

[0060] Example 2:

[0061] Based on Example 1, this example provides an automatic control system for the hydraulic lifting and slow-start / slow-stop mechanism of a dental chair, such as... Figure 2 As shown, the data acquisition module includes:

[0062] The data acquisition unit is used to dynamically capture the user's entire body based on the camera when the user enters the detection area, and to obtain a full-body image of the user based on the dynamic capture results.

[0063] Image parsing unit, used for:

[0064] The user's pose and outline are determined based on the user's full-body image, and multiple evaluation key points are selected based on the user's pose and outline.

[0065] The image distance between key evaluation points is determined based on the user's full-body image, and the positional parameters of the user's body parts are determined based on the user's pose.

[0066] The height data determination unit is used to analyze the image distance between evaluation key points and the positional parameters of user body parts based on a neural network model to obtain user height data, record and store the user height data, and build a height database.

[0067] In this embodiment, the detection area is pre-defined; it is the area before the user sits in the dental chair, and it is the area where the camera captures a full-body image of the user.

[0068] In this embodiment, dynamic capture refers to tracking the user through a camera after the user enters the detection area to obtain a full-body image of the user.

[0069] In this embodiment, user posture refers to the user's current body posture, such as standing upright or bending the legs.

[0070] In this embodiment, the user contour refers to the position of the boundaries of the user's body parts in the full-body image of the user.

[0071] In this embodiment, multiple evaluation key points refer to parameters used to determine the user's height, which are determined based on the user's posture and user profile. For example, these could be the location of a point on the top of the head, a point on the bottom of the feet, or a point on the shoulder.

[0072] In this embodiment, the position parameter of the user's body part refers to the position of different tissue parts of the user's body in the image, specifically the position of the head, feet, and shoulders while sitting, etc.

[0073] The working principle and beneficial effects of the above technical solution are as follows: After the user enters the detection area, the camera is controlled to capture a full-body image of the user, thus facilitating the determination of the user's height. Secondly, by analyzing the captured full-body image of the user, multiple key assessment points and the positional parameters of the user's body parts are accurately and effectively determined. Finally, based on the determined image distances of the key assessment points and the positional parameters of the user's body parts, the user's height data is accurately and effectively acquired. The acquired height data of different users is recorded and stored, enabling the accurate and effective construction of a height database. This facilitates the determination of the initial height correction scheme for the dental chair based on the constructed height database, providing convenience and assurance for correcting the initial height of the dental chair.

[0074] Example 3:

[0075] Based on Embodiment 2, this embodiment provides a hydraulic lifting and slow-start automatic control system for dental chairs, including a height data determination unit, comprising:

[0076] The proportion determination subunit is used to retrieve the height database and perform difference analysis on the height data of users in the height database to obtain the body proportions of users of different heights.

[0077] The correction range determination subunit is used to determine the optimal height range of the dental chair corresponding to different height data based on ergonomic standards and the body proportions of users with different heights, and to generate height adjustment instructions based on the optimal height range of the dental chair.

[0078] The height adjustment subunit is used to control the dental chair to make initial height corrections based on height control commands.

[0079] In this embodiment, difference analysis refers to analyzing different height data, that is, only one sample is taken for the same height data.

[0080] In this embodiment, the height ratio is used to characterize the ratio of the user's lower body to upper body.

[0081] In this embodiment, the ergonomic standard is known in advance and is used to characterize the optimal height of the dental chair for users of different heights (the height of the dental chair when the user is in the dental chair).

[0082] The working principle and beneficial effects of the above technical solution are as follows: By analyzing the height data of users in the height database, the body proportions of users with different heights can be accurately and effectively determined. Secondly, based on ergonomic standards and body proportions, the optimal height range of the dental chair can be rigorously and reliably determined. Finally, a height adjustment command is generated based on the determined optimal height range of the dental chair, and the initial height of the dental chair can be accurately and effectively corrected according to the height adjustment command. This ensures that the dental chair can adapt to users of different heights getting in and out of the dental chair, thus guaranteeing the comfort of users getting in and out of the dental chair.

[0083] Example 4:

[0084] Based on Example 1, this example provides an automatic control system for hydraulic lifting and slow-starting of a dental chair, including a data acquisition module:

[0085] The posture monitoring unit is used to obtain the user's sitting posture in the dental chair based on the initial height correction result, and to determine the user's stability in the dental chair based on the sitting posture.

[0086] The weight acquisition unit is used for:

[0087] When the stability reaches the preset condition, the user's weight parameters are collected based on the weight sensor, and the collected weight parameters are deduplicated and matched with known weight parameters.

[0088] Weight parameters in different dimensions are obtained based on the deduplication matching results.

[0089] In this embodiment, determining the stability of a user on a dental chair based on sitting posture means judging whether the user is sitting stably on the dental chair based on the user's sitting posture, that is, whether the full weight has been applied to the dental chair.

[0090] In this embodiment, the preset conditions are pre-set and are used as a metric to measure whether the user is sitting stably on the dental appliance, such as the size of the contact area.

[0091] In this embodiment, the known weight parameter is the weight that has been collected previously.

[0092] In this embodiment, deduplication matching refers to matching the currently collected weight parameters with known weight parameters, and omitting the existing weight parameters in the known weight parameters based on the matching result.

[0093] The working principle and beneficial effects of the above technical solution are as follows: By analyzing the user's sitting posture in the dental chair, the stability of the user on the chair can be accurately and effectively determined. Secondly, when the stability reaches the preset conditions, the user's weight parameters are collected through a weight sensor, and the collected weight parameters are matched with known weight parameters to eliminate duplicates. Finally, the weight parameters of different weights can be accurately and effectively obtained, which facilitates the formulation of a slow start and stop control strategy for the dental chair based on different weight parameter values, thereby improving the smoothness of the start and stop of the dental chair and improving the user experience.

[0094] Example 5:

[0095] Based on Example 1, this example provides a hydraulic lifting and slow-start automatic control system for dental chairs, including a start / stop control module comprising:

[0096] The data analysis unit is used to obtain the execution standards set by the management terminal for the dental chair, and to parse the text content of the execution standards to obtain the working height of the dental chair under different working conditions.

[0097] The start / stop strategy formulation unit is used for:

[0098] Obtain the factory configuration parameters and safety considerations of the dental chair, and determine the minimum start-stop standards corresponding to the weight parameters of different users based on the factory configuration parameters and safety considerations;

[0099] Based on the minimum start-stop standard, the working height of the dental chair under different working conditions is divided into stages, and based on the stage division results, the range of slow start-stop speed variation of the dental chair under no vibration is determined.

[0100] Based on the results of the change range of the slow start and slow stop speed, the amount of oil passing through the hydraulic lifting device in the dental chair at each stage is determined, and the quantitative index value of the graded opening of the solenoid valve in the hydraulic lifting device is determined based on the amount of oil passing.

[0101] The strategy library construction unit is used to determine the slow start and slow stop control strategy for different users' weight parameters based on the graded opening quantitative index value, and to obtain a differentiated slow start and slow stop control strategy library based on the slow start and slow stop control strategy.

[0102] In this embodiment, the text content refers to the specific text content corresponding to the execution standard.

[0103] In this embodiment, the working height of the dental chair under different working conditions refers to the height that the dental chair needs to reach when performing different treatments, that is, the seat height required by the dentist when performing different treatments on the patient.

[0104] In this embodiment, the factory configuration parameters are known in advance and are used to characterize the working parameters of the dental chair under different conditions and the specific configuration of the dental chair, including the height adjustment range and the power adjustment range.

[0105] In this embodiment, safety considerations refer to the environmental conditions that the dental chair needs to meet when it is in operation, such as ensuring effective support for the user and the stability of the dental chair.

[0106] In this embodiment, the minimum start-stop standard refers to the minimum support force that the hydraulic lifting device in the dental chair needs to provide when lifting and lowering users with different parameters, that is, to ensure that the user can be lifted and lowered without sudden high-speed start-up.

[0107] In this embodiment, dividing the working height of the dental chair under different working conditions into stages based on the minimum start-stop standard refers to dividing the working height of the dental chair according to the minimum start-stop standard of the dental chair, specifically into an acceleration stage, a smooth lifting stage, and a deceleration stage.

[0108] In this embodiment, the slow start and slow stop speed change range refers to the change in speed from the stable and vibration-free start speed of the dental chair under the lowest start and stop standard to the smooth lifting speed, and the change in speed from the smooth lifting speed to zero. The purpose is to control the amount of oil passing through the hydraulic lifting device according to the speed change, so as to achieve the purpose of slow start and slow stop.

[0109] In this embodiment, the amount of oil passing through is a key parameter that directly affects the supporting force of the hydraulic lifting device. The higher the amount of oil passing through during startup, the more obvious the vibration phenomenon will be. Therefore, it is necessary to control the amount of oil passing through to achieve the effect of slow start and slow stop.

[0110] In this embodiment, the solenoid valve is a tool in the dental chair that controls the amount of oil passing through, and it is preset.

[0111] In this embodiment, the graded opening quantitative index value refers to the degree of opening of the solenoid valve in each stage of the stage division result, thereby realizing the control of the oil flow in different stages.

[0112] The working principle and beneficial effects of the above technical solution are as follows: By analyzing the execution standards set by the management terminal for the dental chair, the working height of the dental chair under different working conditions can be accurately and effectively determined. Secondly, by effectively determining the minimum start-stop standard corresponding to the weight parameters of different users based on the factory configuration parameters and safety considerations of the dental chair, it is easy to divide the lifting process of the dental chair into stages according to the minimum start-stop standard. Based on the stage division results, the range of slow start and slow stop speed changes of the dental chair in different stages can be locked. Finally, the amount of oil passing through the hydraulic lifting device in the dental chair can be locked based on the determined range of slow start and slow stop speed changes. Ultimately, the slow start and slow stop control strategy of the dental chair can be accurately and effectively formulated according to the amount of oil passing through different stages, which greatly reduces the vibration of the dental chair during start-up and stop, improves the smoothness of the start-stop of the dental chair, and improves the user experience.

[0113] Example 6:

[0114] Based on Example 5, this example provides an automatic control system for the hydraulic lifting and slow-start / slow-stop mechanism of a dental chair, including a strategy library construction unit:

[0115] Extended strategies construct sub-units for:

[0116] The text parsing results based on the execution standard determine the backrest tilt of the dental chair for users with different body proportions, and generate angle adjustment instructions corresponding to users with different body proportions based on the backrest tilt.

[0117] At the same time, the system acquires real-time weight feedback parameters from the weight sensor on the dental chair, and generates a dental chair reset command when the real-time weight feedback parameters return to zero for a set threshold time.

[0118] The strategy library improves the sub-unit, which is used to build a slow start and slow stop extended control strategy based on angle adjustment commands and dental chair reset commands, and connects the slow start and slow stop extended control strategy with the slow start and slow stop control strategy in the differential slow start and slow stop control strategy library.

[0119] In this embodiment, the backrest tilt is determined according to the execution standards set by the management terminal for the dental chair, and is used to characterize the degree of tilt that the user needs to maintain in the dental chair.

[0120] In this embodiment, obtaining the real-time weight feedback parameters of the dental chair from the weight sensor refers to monitoring the real-time weight on the dental chair through the weight sensor, so as to facilitate timely monitoring of this action when the user leaves the dental chair, thereby facilitating the determination of resetting the dental chair.

[0121] In this embodiment, the threshold is set in advance. For example, it can be the duration for which the weight parameter on the dental chair remains at the 0 level after it changes from 0. For example, it can be that after the weight parameter is zeroed, the dental chair will be controlled to reset after five minutes. Resetting means restoring the dental chair to its initial state, so that it is convenient for the next user to get on and off the dental chair.

[0122] In this embodiment, the slow start and slow stop extended control strategy refers to the control strategy for resetting the dental chair.

[0123] In this embodiment, the connection point docking refers to docking the slow start and slow stop extended control strategy with the slow start and slow stop control strategy. That is, after the working height of the dental chair is adjusted, the backrest tilt of the dental chair is adjusted, and after the user finishes using the dental chair, the dental chair is reset in a timely and effective manner.

[0124] The working principle and beneficial effects of the above technical solution are as follows: First, by determining the backrest tilt angle for users with different body proportions based on the text parsing results of the execution standard's text content, an angle adjustment command is generated to adjust the angle of the dental chair backrest based on the backrest tilt angle. Second, real-time weight feedback parameters from the dental chair are obtained, facilitating the timely generation of a dental chair reset command when there is no user on the chair. Finally, a soft-start / soft-stop extended control strategy is constructed based on the obtained angle adjustment command and dental chair reset command, and this extended control strategy is integrated with the constructed soft-start / soft-stop control strategy to achieve effective control of the dental chair, improving the smoothness of the dental chair's start and stop, enhancing the user experience, and improving the control effect of the dental chair.

[0125] Example 7:

[0126] Based on Example 1, this example provides a hydraulic lifting and slow-start automatic control system for dental chairs, including a start / stop control module comprising:

[0127] Simulated test unit, used for:

[0128] Based on the weight parameters of different users, substitutes of the same weight were retrieved, and a simulated test scenario of the dental chair was constructed based on the substitutes.

[0129] Based on the simulated test scenario, the hydraulic lifting device in the dental chair was subjected to multiple multi-dimensional simulated start-stop tests at high frequency according to the differential start-stop control strategy library, and the operating status of the dental chair was acquired in real time during each simulated start-stop test in different dimensions.

[0130] The simulation results analysis unit is used for:

[0131] The lifting speed and vibration amplitude of the dental chair during each start-stop operation are determined based on the operating status of the dental chair. The pass rate of the slow start-stop control of the dental chair is determined based on the number of simulated start-stop operations and the lifting speed and vibration amplitude of the dental chair during each start-stop operation.

[0132] In this embodiment, the substitute can be an item with the same weight parameter value as different users.

[0133] In this embodiment, the simulated test scenario refers to the environment in which the dental chair is tested for slow start and slow stop control.

[0134] In this embodiment, the vibration amplitude is used to characterize the severity of vibration that occurs when the dental chair is started, i.e., the size of the vibration swing.

[0135] In this embodiment, the qualification rate of the dental chair's slow start and slow stop control, determined based on the number of simulated start and stop times, the lifting speed of the dental chair in each instance, and the vibration amplitude of the slow start and slow stop, is determined by the proportion of qualified lifting speeds and vibration amplitudes of the dental chair to the total number of simulated start and stop times.

[0136] The working principle and beneficial effects of the above technical solution are as follows: By retrieving substitutes of equivalent weight to the weight parameters of different users, the simulated test scenario of the dental chair can be accurately and effectively constructed. Secondly, based on the constructed differential start-stop control strategy library, the hydraulic lifting device in the dental chair is subjected to multi-frequency, multi-dimensional simulated start-stop tests, and the operating status after each simulated start-stop test is monitored in real time. Finally, the pass rate of the dental chair is analyzed based on the monitored operating status, so as to accurately and effectively evaluate the differential start-stop control effect of the dental chair. It also facilitates timely adjustment of the differential start-stop control strategy library of the dental chair when the control effect does not meet the requirements.

[0137] Example 8:

[0138] Based on Example 1, this example provides an automatic control system for hydraulic lifting and slow-starting of a dental chair, including an optimization and reset module, comprising:

[0139] The result retrieval subunit is used to retrieve the multi-dimensional simulated start-stop test results, and to determine the pass rate of the slow start-stop control based on the multi-dimensional simulated start-stop test results. When the pass rate of the slow start-stop control is less than the expected set value, the optimization direction and optimization parameters of the hydraulic lifting device in the dental chair are determined based on the operating status of the dental chair during each different dimension simulated start-stop test.

[0140] The optimization subunit is used to optimize the parameters of the differential start-stop control strategy library based on the optimization direction and the optimization parameters in the optimization direction.

[0141] In this embodiment, the expected set value is pre-set and is used to characterize the minimum standard that the pass rate of the slow start and slow stop control of the dental chair needs to be achieved.

[0142] In this embodiment, the optimization direction refers to the type of parameters for optimizing the hydraulic lifting device in the dental chair.

[0143] In this embodiment, the optimization parameter refers to the specific degree of optimization of the dental chair in the optimization direction, that is, the specific adjustment value of the control parameters of the hydraulic lifting device in the dental chair.

[0144] The working principle and beneficial effects of the above technical solution are as follows: By analyzing the obtained multi-dimensional simulated start-stop test results, when the pass rate of the slow start-stop control does not meet the set value, the optimization direction of the hydraulic lifting device of the dental chair and the optimization parameters in the optimization direction are accurately and effectively determined. Finally, based on the determined optimization direction and the optimization parameters in the optimization direction, the parameters of the differential slow start-stop control strategy library are optimized. This ensures that when the differential slow start-stop control strategy library does not meet the requirements, it is corrected in a timely manner, improving the smoothness of the start-stop of the dental chair, improving the user experience, and also improving the control effect of the dental chair.

[0145] Example 9:

[0146] Based on Example 1, this example provides an automatic control system for hydraulic lifting and slow-starting of a dental chair, including an optimization and reset module, comprising:

[0147] The docking unit is used to dock the differential start-stop control strategy library with the main control center in the dental chair, and to build an adaptive strategy access protocol for the main control center to access the differential start-stop control strategy library based on the docking results.

[0148] The automatic control unit is used to retrieve effective start-stop control strategies from the differential start-stop control strategy library based on the upper-level monitoring data and according to the adaptive strategy access protocol, and to automatically control the dental chair to start and stop automatically based on the effective start-stop control strategies.

[0149] In this embodiment, the main control center is pre-set and is a dental chair control system used to control the raising and lowering process of the dental chair according to a differential start-stop control strategy library.

[0150] In this embodiment, the adaptive strategy access protocol refers to the process of retrieving the corresponding slow start and slow stop control strategy from the differential slow start and slow stop control strategy library based on the real-time weight parameters on the dental chair. The purpose is to select an appropriate slow start and slow stop control strategy to control the current working state of the dental chair.

[0151] In this embodiment, the upper-level monitoring data refers to the monitored weight parameter of the current user on the dental chair.

[0152] In this embodiment, the effective slow start and slow stop control strategy refers to a strategy applicable to controlling the current dental chair, and is one of the differential slow start and slow stop control strategy libraries.

[0153] The working principle and beneficial effects of the above technical solution are as follows: By connecting the differential start-stop control strategy library with the main control center in the dental chair, and constructing an adaptive strategy access protocol for the differential start-stop control strategy library based on the connection results, the effective start-stop control strategies for controlling the dental chair are effectively retrieved through the adaptive strategy access protocol based on the upper-level monitoring data. Finally, the dental chair is automatically controlled to start and stop gradually based on the retrieved effective start-stop control strategies, thus ensuring the control effect of the dental chair and improving the smoothness of the start and stop of the dental chair.

[0154] Example 10:

[0155] This embodiment provides an automatic control method for the slow start and slow stop of hydraulic lifting in dental chairs, such as... Figure 3 As shown, it includes:

[0156] Step 1: Adjust the initial height of the dental chair based on the user's height data, and collect the weight parameters of different users based on the initial height adjustment results;

[0157] Step 2: Construct a differential start-stop control strategy library based on the execution standard and the weight parameters of different users, and conduct multi-dimensional simulation start-stop tests on the hydraulic lifting device based on the differential start-stop control strategy library;

[0158] Step 3: Optimize the differential start-stop control strategy library based on the multi-dimensional simulation start-stop test results, and automatically control the dental chair to start and stop slowly based on the optimization results.

[0159] The working principle and beneficial effects of the above technical solution are as follows: First, the initial height of the dental chair is corrected based on the user's height, facilitating entry and exit for users of different heights. Second, after the initial height correction, the weight parameters of different users are collected, allowing for the development of differentiated start-stop control strategies for the dental chair based on these parameters. Third, based on the execution standards and the weight parameters of different users, the corresponding start-stop control strategies are determined. Fourth, the hydraulic lifting device in the dental chair is simulated according to the determined start-stop control strategies, enabling accurate and effective testing of the start-stop control effect. Finally, the start-stop control strategy library is optimized based on the simulation test results, ultimately achieving automatic start-stop control of the dental chair based on the optimized results. This significantly reduces vibration during start-up and stop, improves the smoothness of start-stop operation, enhances the user experience, and improves the control effect of the dental chair.

[0160] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A hydraulic lifting and slow-start automatic control system for a dental chair, characterized in that, include: The data acquisition module is used to correct the initial height of the dental chair based on the user's height data, and to collect the weight parameters of different users based on the initial height correction results; The start-stop control module is used to build a differential start-stop control strategy library based on the execution standard and the weight parameters of different users, and to conduct multi-dimensional simulation start-stop tests on the hydraulic lifting device based on the differential start-stop control strategy library; The optimization and reset module is used to optimize the differential start-stop control strategy library based on the results of multi-dimensional simulation start-stop test, and to automatically control the dental chair to start and stop slowly based on the optimization results. The start / stop control module includes: The data analysis unit is used to obtain the execution standards set by the management terminal for the dental chair, and to parse the text content of the execution standards to obtain the working height of the dental chair under different working conditions. The start / stop strategy formulation unit is used for: Obtain the factory configuration parameters and safety considerations of the dental chair, and determine the minimum start-stop standards for the dental chair when lifting users with different weight parameters based on the factory configuration parameters and safety considerations; Based on the minimum start-stop standard, the working height of the dental chair under different working conditions is divided into stages, and based on the stage division results, the range of slow start-stop speed variation of the dental chair under no vibration is determined. Based on the results of the change range of the slow start and slow stop speed, the amount of oil passing through the hydraulic lifting device in the dental chair at each stage is determined, and the quantitative index value of the graded opening of the solenoid valve in the hydraulic lifting device is determined based on the amount of oil passing. The strategy library construction unit is used to determine the slow start and slow stop control strategy for different users' weight parameters based on the graded opening quantitative index value, and to obtain a differentiated slow start and slow stop control strategy library based on the slow start and slow stop control strategy.

2. The automatic control system for hydraulic lifting and slow-start / slow-stop of a dental chair according to claim 1, characterized in that, The data acquisition module includes: The data acquisition unit is used to dynamically capture the user's entire body based on the camera when the user enters the detection area, and to obtain a full-body image of the user based on the dynamic capture results. Image parsing unit, used for: The user's pose and outline are determined based on the user's full-body image, and multiple evaluation key points are selected based on the user's pose and outline. The image distance between key evaluation points is determined based on the user's full-body image, and the positional parameters of the user's body parts are determined based on the user's pose. The height data determination unit is used to analyze the image distance between evaluation key points and the positional parameters of user body parts based on a neural network model to obtain user height data, record and store the user height data, and build a height database.

3. The automatic control system for hydraulic lifting and slow-start / slow-stop of a dental chair according to claim 1, characterized in that, The data acquisition module includes: The posture monitoring unit is used to obtain the user's sitting posture in the dental chair based on the initial height correction result, and to determine the user's stability in the dental chair based on the sitting posture. The weight acquisition unit is used for: When the stability reaches the preset condition, the user's weight parameters are collected based on the weight sensor, and the collected weight parameters are deduplicated and matched with known weight parameters. Weight parameters in different dimensions are obtained based on the deduplication matching results.

4. The automatic control system for hydraulic lifting and slow-start / slow-stop of a dental chair according to claim 1, characterized in that, The strategy library building unit includes: The extended strategy constructs sub-units for: The text parsing results based on the execution standard determine the backrest tilt of the dental chair for users with different body proportions, and generate angle adjustment instructions corresponding to users with different body proportions based on the backrest tilt. At the same time, the system acquires real-time weight feedback parameters from the weight sensor on the dental chair, and generates a dental chair reset command when the real-time weight feedback parameters return to zero for a set threshold. The strategy library improves the sub-unit, which is used to build a slow start and slow stop extended control strategy based on angle adjustment command and dental chair reset command, and connects the slow start and slow stop extended control strategy with the slow start and slow stop control strategy in the differential slow start and slow stop control strategy library.

5. A method for automatic control of hydraulic lifting and slow-start / slow-stop operation of a dental chair, characterized in that, include: The initial height of the dental chair is corrected based on the user's height data, and the weight parameters of different users are collected based on the initial height correction results. A differential start-stop control strategy library was constructed based on the execution standards and the weight parameters of different users, and a multi-dimensional simulation start-stop test was conducted on the hydraulic lifting device based on the differential start-stop control strategy library; Based on the results of multi-dimensional simulation start-stop test, the differential start-stop control strategy library is optimized, and the dental chair is automatically controlled for start-stop based on the optimization results. Among them, a library of differentiated start-stop control strategies is constructed based on execution standards and the weight parameters of different users, including: The system obtains the execution standards set for the dental chair by the management terminal, and parses the text content of the execution standards to obtain the working height of the dental chair under different working conditions. Obtain the factory configuration parameters and safety considerations of the dental chair, and determine the minimum start-stop standards for the dental chair when lifting users with different weight parameters based on the factory configuration parameters and safety considerations; Based on the minimum start-stop standard, the working height of the dental chair under different working conditions is divided into stages, and based on the stage division results, the range of slow start-stop speed variation of the dental chair under no vibration is determined. Based on the results of the change range of the slow start and slow stop speed, the amount of oil passing through the hydraulic lifting device in the dental chair at each stage is determined, and the quantitative index value of the graded opening of the solenoid valve in the hydraulic lifting device is determined based on the amount of oil passing. Based on the graded opening quantitative index value, a gradual start and stop control strategy is determined for different users' weight parameters, and a differential gradual start and stop control strategy library is obtained based on the gradual start and stop control strategy.

Images