A human-machine data measurement method based on an adjustable bench

Abstract

The present invention discloses a human-machine data measurement method based on an adjustable bench, which relates to an adjustable bench and includes: responding to a measurement signal, determining relevant initial data of a driver by adjusting the adjustable bench, and determining human-machine data in the order of the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front loop, the target height of the main loop, the target parameters of the pedals, the target parameters of the front partition, and the target width of the side anti-collision area in combination with the weights associated with all drivers and corresponding constraint conditions. By building an adjustable bench, the actual vehicle driving environment is effectively simulated, and the mutual influence between data is fully considered. The human-machine data measured and processed can take into account the driving needs of all drivers, and can improve the convenience of human-machine data measurement on the basis of meeting the accuracy of measurement data.

Description

Technical Field

[0001] The invention relates to the technical field of formula automobiles, and in particular to a human-machine data measuring method based on an adjustable bench. Background Art

[0002] The Formula Student China is a car design and manufacturing competition for teams of students majoring in automotive engineering or related majors from colleges and universities. Each participating team designs and manufactures a small single-seat leisure racing car with excellent performance in acceleration, braking, and handling in accordance with the competition rules and racing car manufacturing standards. The driver's operating comfort is an important indicator of racing car design.

[0003] Ergonomics is the basis for providing operational comfort. Existing ergonomics solutions mainly use software for simulation design. The resulting model has a certain degree of matching difference with the actual human body data, which makes the evaluation results obtained through the software inconsistent with the actual feedback from the driver. In addition, the existing ergonomics data measurement method has high requirements for the measurement system and is difficult to carry out under limited conditions. Therefore, it is necessary to improve the convenience of ergonomics data measurement on the basis of meeting the accuracy of the measurement data. Summary of the invention

[0004] The present invention provides a human-machine data measurement method based on an adjustable stand, which solves the technical problems that the existing human-machine data measurement method has high requirements for the measurement system, is difficult to meet the measurement requirements under limited conditions, and has low measurement convenience.

[0005] The present invention provides a human-machine data measurement method based on an adjustable stand, which relates to the adjustable stand and includes:

[0006] In response to the measurement signal, measuring the initial seat angles of a plurality of riders by means of the adjustable stand, and determining a target seat angle according to the initial seat angles and a weight associated with each of the riders;

[0007] Determine a steering wheel target parameter based on the seat target angle and the weight, and output a front ring target parameter according to the steering wheel target parameter and a front ring constraint condition;

[0008] After the front ring target parameters are determined, the main ring target height is determined by the front ring target parameters and the main ring constraint conditions, and the pedal target parameters are determined by using the measured pedal initial parameters, the weights, the designed adjustable stroke and the pedal constraint conditions;

[0009] Outputting a front bulkhead target parameter according to the pedal target parameter, the driver's height and the front bulkhead constraint condition;

[0010] After determining the target parameters of the front partition, measure the sharp-turn swing ranges of the riders, and select the maximum sharp-turn swing range as the target width of the side anti-collision area.

[0011] Output the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front ring, the target height of the main ring, the target parameters of the pedal, the target parameters of the front partition, and the target width of the side anti-collision area as human-machine data.

[0012] Optionally, before the step of measuring the initial angles of the seats of multiple riders through the adjustable test bench in response to the measurement signal and determining the target angle of the seat according to the initial angles of the seats and the weights associated with the riders, it includes:

[0013] In response to the adjustable test bench construction request, fix the main ring on the welding platform through bolts and nuts, and press and set the seat on the main ring.

[0014] Fix and install the front partition front ring sliding platform on the welding platform, and build the front partition and the front ring on the front partition front ring sliding platform.

[0015] Fix and install the braking system and the steering system between the front partition and the front ring on the welding platform.

[0016] Optionally, the step of measuring the initial angles of the seats of multiple riders through the adjustable test bench in response to the measurement signal and determining the target angle of the seat according to the initial angles of the seats and the weights associated with the riders includes:

[0017] In response to the measurement signal, adjust the seat to move to the most comfortable positions and the extreme positions of the seats corresponding to multiple riders on the welding platform, and mark all the most comfortable positions and all the extreme positions of the seats on the welding platform and the main ring respectively.

[0018] Measure the horizontal seat distances from each of the most comfortable positions and each of the extreme positions of the seats to the plane where the main ring is located, and the vertical seat distances to the welding platform respectively.

[0019] Use all the horizontal seat distances and the corresponding vertical seat distances, and calculate multiple most comfortable angles and multiple extreme angles of the seats through trigonometric relationships; each of the extreme angles of the seat includes the maximum angle of the seat and the minimum angle of the seat.

[0020] Calculate the first product values of the weights associated with the riders and the most comfortable angles of the seats to which they belong, and perform a summation operation on all the first product values to generate alternative seat angles.

[0021] Construct the acceptable angle range of the seat for each rider by using the maximum angle of all the seats and the corresponding minimum angle of the seat, and determine whether the alternative seat angle is within the acceptable angle range of all the seats;

[0022] If so, use the alternative seat angle as the target seat angle; if not, select the overlapping range of the acceptable angle ranges of all the seats, and select the range endpoint angle with the smallest difference from the alternative seat angle from the overlapping range as the target seat angle.

[0023] Optionally, the step of determining the target steering wheel parameters based on the target seat angle and the weights, and outputting the target front ring parameters according to the target steering wheel parameters and the front ring constraint conditions includes:

[0024] Based on the target seat angle, adjust the steering system to measure the most comfortable distance, the maximum distance, and the minimum distance of the steering wheel for each rider;

[0025] Calculate the second product value of each weight and the corresponding most comfortable distance of the steering wheel, and perform a sum operation on all the second product values to generate an alternative steering wheel distance;

[0026] Form the acceptable distance range of the steering wheel for each rider according to all the maximum distances of the steering wheel and the corresponding minimum distances of the steering wheel, and determine whether the alternative steering wheel distance is within the acceptable distance range of all the steering wheels;

[0027] If so, use the alternative steering wheel distance as the target steering wheel distance;

[0028] If not, determine the distance overlapping range of all the acceptable distance ranges of the steering wheel, and select the range endpoint distance with the smallest difference from the alternative steering wheel distance from the distance overlapping range as the target steering wheel distance;

[0029] Output the target front ring parameters according to the target steering wheel distance and the front ring constraint conditions.

[0030] Optionally, the step of outputting the target front ring parameters according to the target steering wheel distance and the front ring constraint conditions includes:

[0031] Based on the target steering wheel distance, adjust the steering system to measure the most comfortable height, the maximum height, and the minimum height of the steering wheel for each rider;

[0032] Calculate the third product value of each weight and the corresponding most comfortable height of the steering wheel, and perform a sum operation on all the third product values to generate an alternative steering wheel height;

[0033] Construct the acceptable height range of the steering wheel for each driver using all the maximum heights of the steering wheels and the corresponding minimum heights of the steering wheels, and determine whether the alternative height of the steering wheel is within the acceptable height range of all the steering wheels;

[0034] If so, use the alternative height of the steering wheel as the target height of the steering wheel;

[0035] If not, determine the height overlap range of the acceptable height ranges of all the steering wheels, and select the range endpoint height with the smallest difference from the alternative height of the steering wheel as the target height of the steering wheel from the height overlap range;

[0036] Output the front loop target parameters according to the target height of the steering wheel and the front loop constraint conditions.

[0037] Optionally, the step of outputting the front loop target parameters according to the target height of the steering wheel and the front loop constraint conditions includes:

[0038] Based on the target height of the steering wheel, adjust the steering system to measure the most comfortable angle, the maximum angle, and the minimum angle of the steering wheel for each driver;

[0039] Calculate the fourth product value of each weight and the corresponding most comfortable angle of the steering wheel, and perform a sum operation on all the fourth product values to generate an alternative angle of the steering wheel;

[0040] Construct the acceptable angle range of the steering wheel for each driver according to all the maximum angles of the steering wheels and the corresponding minimum angles of the steering wheels, and determine whether the alternative angle of the steering wheel is within the acceptable angle range of all the steering wheels;

[0041] If so, use the alternative angle of the steering wheel as the target angle of the steering wheel;

[0042] If not, determine the angle overlap range of the acceptable angle ranges of all the steering wheels, and select the range endpoint angle with the smallest difference from the alternative angle of the steering wheel as the target angle of the steering wheel from the angle overlap range;

[0043] Jointly determine the target distance of the steering wheel, the target height of the steering wheel, and the target angle of the steering wheel as the target parameters of the steering wheel;

[0044] Based on the target parameters of the steering wheel, adjust the minimum vertical height of the observation board on the front loop to the welding platform according to the front loop constraint conditions, and adjust the maximum horizontal distance between the plane of the front loop and the plane of the main loop;

[0045] Use the minimum vertical height and the maximum horizontal distance as the target parameters of the front loop.

[0046] Optionally, after determining the front loop target parameters, after determining the main loop target height based on the front loop target parameters and the main loop constraint conditions, and determining the pedal target parameters by using the measured initial pedal parameters, the weights, the designed adjustable stroke, and the pedal constraint conditions, the steps include:

[0047] After determining the front loop target parameters, according to the front loop target parameters, adjust the main loop lifting platform of the main loop to the minimum height of the welding platform according to the main loop constraint conditions, and use the minimum height as the main loop target height;

[0048] Adjust the braking system to measure the most comfortable height, the maximum height of the pedal base, the minimum height of the pedal base, the most comfortable spacing of the pedals, the maximum spacing of the pedals, and the minimum spacing of the pedals for each rider;

[0049] Calculate the fifth product value of the weight and the corresponding most comfortable height of the pedal base, and perform a sum operation on all the fifth product values to generate an alternative height of the pedal base; calculate the sixth product value of the weight and the corresponding most comfortable spacing of the pedals, and perform a sum operation on all the sixth product values to generate an alternative spacing of the pedals;

[0050] According to all the maximum heights and the corresponding minimum heights of the pedal bases, and all the maximum spacings and the corresponding minimum spacings of the pedals, construct the acceptable height range of the pedal base and the acceptable spacing range of the pedals corresponding to each rider respectively;

[0051] Judge whether the alternative height of the pedal base is within the acceptable height range of all the pedal bases, and judge whether the alternative spacing of the pedals is within the acceptable spacing range of all the pedals;

[0052] If so, use the alternative height of the pedal base and the alternative spacing of the pedals as the target height of the pedal base and the target spacing of the pedals;

[0053] If not, determine the overlapping range of the base heights of all the acceptable height ranges of the pedal bases, or determine the overlapping range of the spacings of all the acceptable spacing ranges of the pedals;

[0054] Select the range end point height with the smallest difference from the alternative height of the pedal base from the overlapping range of the base heights, or select the range end point spacing with the smallest difference from the alternative spacing of the pedals from the overlapping range of the spacings as the target spacing of the pedals;

[0055] Based on the target height of the pedal base and the target spacing of the pedals, determine the pedal target parameters by using the weights, the designed adjustable stroke, and the pedal constraint conditions.

[0056] Optionally, the step of determining the pedal target parameters by using the weights, the designed adjustable stroke, and the pedal constraint conditions based on the target height of the pedal base and the target spacing of the pedals includes:

[0057] Based on the target height of the pedal base and the target spacing of the pedals, adjust the braking system to measure the most comfortable distances of the pedals of each rider;

[0058] Select the maximum and minimum most comfortable distances of the pedals from all the most comfortable distances of the pedals, perform a difference operation to generate a first difference, and determine whether the first difference is less than or equal to the designed adjustable stroke;

[0059] If so, use the maximum and minimum most comfortable distances of the pedals as the initial pedal target distances;

[0060] If not, calculate the designed adjustable stroke, calculate a second difference with the most comfortable distance of the pedal with a smaller weight among the maximum and minimum most comfortable distances of the pedals, and use the most comfortable distance of the pedal with the smaller weight and the second difference as the initial pedal target distance;

[0061] When the initial pedal target distance meets the pedal constraint conditions, use the initial pedal target distance as the final pedal target distance;

[0062] When the initial pedal target distance does not meet the pedal constraint conditions, update the designed adjustable stroke according to the pedal constraint conditions, and jump to execute the step of performing a difference operation with the most comfortable distance of the pedal with a smaller weight among the maximum and minimum most comfortable distances of the pedals by using the designed adjustable stroke to generate a second difference, and using the most comfortable distance of the pedal with the smaller weight and the second difference as the initial pedal target distance;

[0063] Determine the pedal target parameters based on the final pedal target distance and the weights.

[0064] Optionally, the step of determining the pedal target parameters based on the final pedal target distance and the weights includes:

[0065] Taking the maximum most comfortable distance in the final pedal target distance as the benchmark, use the braking system to measure the most comfortable height, the maximum height, and the minimum height of the pedal application points of all the riders;

[0066] Calculate the seventh product value of the weights and the corresponding most comfortable height of the pedal application points, and perform a sum operation on all the seventh product values to generate an alternative height of the pedal application point;

[0067] Construct the acceptable height range of the pedal application point corresponding to each rider according to the maximum height of all the pedal application points and the corresponding minimum height of the pedal application point, and determine whether the alternative height of the pedal application point is within the acceptable height range of all the pedal application points;

[0068] If so, use the alternative height of the pedal application point as the target height of the pedal application point;

[0069] If not, determine the overlapping range of the application point heights of the acceptable height ranges of all the pedal application points, and select the range endpoint height with the smallest difference from the alternative height of the pedal application point from the acceptable height range of the pedal application point to update as the target height of the pedal application point;

[0070] Combine the target height of the pedal base, the target spacing of the pedals, the final target distance of the pedals, and the target height of the pedal application point, and output as the pedal target parameters.

[0071] Optionally, the step of outputting the target parameters of the front partition according to the pedal target parameters, the rider's height, and the front partition constraint conditions includes:

[0072] Based on the maximum most comfortable distance of the pedals in the pedal target parameters, adjust the minimum horizontal distance from the plane where the front partition is located to the plane where the main ring is located according to the corresponding front partition constraint conditions as the target distance of the front partition;

[0073] When the target distance of the front partition is determined, select the tallest rider according to the heights of all the riders;

[0074] According to the line of sight of the tallest rider, adjust the front partition according to the front partition constraint conditions to determine the corresponding target height of the front partition;

[0075] Combine the target distance of the front partition and the target height of the front partition and output as the target parameters of the front partition.

[0076] It can be seen from the above technical solutions that the present invention has the following advantages:

[0077] By responding to the measurement signal, the present invention determines the relevant initial data of the rider by adjusting the adjustable test bench, combines the weights associated with all riders and the corresponding constraint conditions, and determines the human-machine data in the order of the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front ring, the target height of the main ring, the target parameters of the pedals, the target parameters of the front partition, and the target width of the side anti-collision area. By building an adjustable test bench, the actual vehicle driving environment is effectively simulated, the mutual influence between data is fully considered, and the human-machine data obtained by measurement and data processing can take into account the driving needs of all riders, and can improve the convenience of human-machine data measurement on the basis of meeting the accuracy of measurement data. Description of the Drawings

[0078] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0079] Figure 1 It is a flowchart of the steps of a human-machine data measurement method based on an adjustable bench provided in the first embodiment of the present invention;

[0080] Figure 2 It is a flowchart of the steps of a human-machine data measurement method based on an adjustable bench provided in the second embodiment of the present invention;

[0081] Figure 3 It is a perspective view of an adjustable bench provided in the second embodiment of the present invention;

[0082] Figure 4 It is a perspective view of a welding platform provided in the second embodiment of the present invention;

[0083] Figure 5 It is a perspective view of the main ring provided in the second embodiment of the present invention;

[0084] Figure 6 It is a perspective view of the front partition front ring sliding platform provided in the second embodiment of the present invention;

[0085] Figure 7 It is a perspective view of the front partition provided in the second embodiment of the present invention;

[0086] Figure 8 It is a perspective view of the front ring provided in the second embodiment of the present invention;

[0087] Figure 9 It is a perspective view of the braking system provided in the second embodiment of the present invention;

[0088] Figure 10 It is a perspective view of the steering system provided in the second embodiment of the present invention. Detailed Embodiments

[0089] The embodiments of the present invention provide a human-machine data measurement method based on an adjustable bench, which is used to solve the technical problems that the existing human-machine data measurement methods have high requirements for the measurement system, are difficult to meet the measurement under limited conditions, and have low measurement convenience.

[0090] To make the object, features, and advantages of the present invention more apparent and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0091] Please refer to Figure 1 , Figure 1 which is a flowchart of the steps of a human-machine data measurement method based on an adjustable bench provided in Embodiment 1 of the present invention.

[0092] A human-machine data measurement method based on an adjustable bench provided by the present invention includes:

[0093] Step 101: Respond to the measurement signal, measure the initial seat angles of multiple drivers through the adjustable bench, and determine the target seat angle according to the initial seat angles and the weights associated with each driver.

[0094] The measurement signal refers to a signal for requesting data measurement sent by any terminal that supports human-machine data measurement.

[0095] The adjustable bench refers to an adjustable bench built by simulating a formula racing car. The initial seat angles include the most comfortable seat angle, the maximum seat angle, and the minimum seat angle. The target seat angle refers to the seat angle that fits all drivers.

[0096] It can be understood that the weights associated with each driver can be determined according to the proportion of the scores of the dynamic items in the China Formula Student Competition. Please refer to Table 1 as follows:

[0097] Table 1 Driver Weight Table

[0098]

[0099] In the embodiment of the present invention, when receiving a measurement signal sent by any terminal that supports human-machine data measurement, measure the initial seat angles of multiple drivers through the built adjustable bench, and perform data processing on all the initial seat angles using the weights corresponding to each driver respectively to determine the target seat angle.

[0100] Step 102: Determine the target steering wheel parameters based on the target seat angle and the weights, and output the target front ring parameters according to the target steering wheel parameters and the front ring constraint conditions.

[0101] The steering wheel target parameters refer to the steering wheel parameters suitable for all drivers. The front loop constraint conditions include: the highest point of the steering wheel at any steering angle must be lower than the highest point of the front loop, and the distance between the front loop and the front of the steering wheel shall not exceed 250 mm (9.8 inches). The front loop target parameters refer to the front loop parameters suitable for all drivers.

[0102] In an embodiment of the present invention, after determining the seat target angle, under the condition that the adjustable bench is at the seat target angle, measure the initial steering wheel parameters of all drivers, and determine the steering wheel target parameters by performing data processing on the initial steering wheel parameters through the weights of the drivers. Under the condition that the adjustable bench is simultaneously at the seat target angle and the steering wheel target parameters, output the front loop target parameters on the premise of meeting the front loop constraint conditions.

[0103] Step 103: After determining the front loop target parameters, determine the main loop target height through the front loop target parameters and the main loop constraint conditions, and determine the pedal target parameters by using the measured initial pedal parameters, weights, designed adjustable stroke, and pedal constraint conditions.

[0104] The main loop constraint conditions refer to that when sitting normally and fastening the seat belt, the helmets of all drivers and the heads of the male 95th percentile template must meet the following requirements: there must be a distance of at least 50.8 mm (2 inches) from the connection line between the top of the front loop and the top of the main loop; the helmet cannot extend backward beyond the plane where the main loop is located.

[0105] The main loop target height refers to the main loop height suitable for all drivers.

[0106] The initial pedal parameters include the pedal base height, pedal spacing, pedal distance, and pedal force application point height.

[0107] The designed adjustable stroke refers to the adjustable stroke of the pedal from the plane where the main loop is located.

[0108] The pedal constraint conditions include: adjust the seat to the rearmost position, adjust the pedal to the foremost position, and place a circle with a bottom diameter of 200 mm at the bottom of the seat so that the distance from the center of the circle to the rearmost end face of the pedal is not less than 915 mm (36 inches).

[0109] In an embodiment of the present invention, after determining the front loop target parameters, adjust and maintain the adjustable bench under the conditions of the seat target angle, the steering wheel target parameters, and the front loop target parameters. Adjust the adjustable bench according to the constraints of the main loop constraint conditions to determine the main loop target height, measure the initial pedal parameters of all drivers through the adjustable bench, and perform data processing according to the weights of the drivers, the designed adjustable stroke, and the pedal constraint conditions to determine the pedal target parameters.

[0110] It can be understood that after adjusting the adjustable mount to the target seat angle, the target steering wheel parameters, and the target front ring parameters, the target height of the main ring can be determined first and then the target pedal parameters can be determined, or the target pedal parameters can be determined first and then the target height of the main ring can be determined.

[0111] Step 104: Output the target front bulkhead parameters according to the target pedal parameters, the driver's height, and the front bulkhead constraint conditions.

[0112] The front bulkhead constraint conditions include: when the driver's feet touch but do not step on the pedals (the adjustable pedals must be in the most forward position), the front bulkhead plane must be in front of the driver's feet; when the tallest driver drives the racing car in a normal driving position, when looking forward through the top of the front ring, the front bulkhead cannot be seen, and at the same time, the design requirements of the buffer block and the anti-intrusion plate are met.

[0113] It can be understood that the normal driving position means that the driver sits on the seat, with the back against the seat, steps on the pedals, holds the steering wheel, and looks straight ahead. The design requirements of the buffer block and the anti-intrusion plate mean that the buffer structure must meet the following requirements: a. It is at least 200 mm (7.8 inches) long in the front-rear direction of the racing car; b. Within 200 mm (7.8 inches) in front of the front bulkhead, it is at least 100 mm (3.9 inches) high and 200 mm (7.8 inches) wide; c. The buffer structure is safely connected to the anti-intrusion plate or directly connected to the front bulkhead. The outer contour of the anti-intrusion plate is related to the way it is connected to the front bulkhead: if the buffer components are welded to the front bulkhead, then they must cross the axes of the front bulkhead pipe fittings in all directions; if the buffer components are bolted to the front bulkhead, then they must be exactly the same as the outer contour dimensions of the front bulkhead.

[0114] The target front bulkhead parameters refer to the front bulkhead parameters that are suitable for all drivers.

[0115] In the embodiment of the present invention, under the conditions that the adjustable mount is at the target seat angle, the target steering wheel parameters, the target front ring parameters, the target height of the main ring, and the target pedal parameters, the adjustable mount is adjusted in combination with the driver's height to determine the target front bulkhead parameters that meet the front bulkhead constraint conditions.

[0116] Step 105: When the target front bulkhead parameters are determined, measure the sharp-turn swing range of each driver, and select the largest sharp-turn swing range as the target width of the side anti-collision area.

[0117] The sharp-turn swing range refers to the left-right swing range of the driver's arm when simulating the sharp-turn direction operation.

[0118] The target width of the side anti-collision area refers to the width of the side anti-collision area that is suitable for all drivers. Among them, the side anti-collision area is defined as the area on the side of the vehicle between the front ring and the main ring, from 240 mm to 320 mm above the lowest point of the vehicle frame inside the cockpit.

[0119] In the embodiment of the present invention, under the conditions of adjusting the adjustable bench to the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front ring, the target height of the main ring, the target parameters of the pedal, and the target parameters of the front partition, measure the sharp-turn swing range when all drivers simulate the sharp-turn operation, compare all the sharp-turn swing ranges, and select the largest sharp-turn swing range as the target width of the side anti-collision area.

[0120] Step 106: Output the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front ring, the target height of the main ring, the target parameters of the pedal, the target parameters of the front partition, and the target width of the side anti-collision area as human-machine data.

[0121] In the embodiment of the present invention, in response to the measurement signal, determine the relevant initial data of the driver by adjusting the adjustable bench, combine the weights associated with all drivers and the corresponding constraint conditions, and determine the human-machine data in the order of the target angle of the seat, the target parameters of the steering wheel, the target parameters of the front ring, the target height of the main ring, the target parameters of the pedal, the target parameters of the front partition, and the target width of the side anti-collision area. By building an adjustable bench to effectively simulate the real vehicle driving environment and fully considering the mutual influence between data, the human-machine data obtained by measurement and data processing can take into account the driving needs of all drivers and improve the convenience of human-machine data measurement on the basis of meeting the accuracy of measurement data.

[0122] Please refer to Figure 2 , Figure 2 which is the step flowchart of a method for measuring human-machine data based on an adjustable bench provided in the second embodiment of the present invention.

[0123] A method for measuring human-machine data based on an adjustable bench provided by the present invention includes:

[0124] Step 201: In response to the request for building the adjustable bench, fix the main ring on the welding platform through bolts and nuts, and press and set the seat on the main ring.

[0125] The request for building the adjustable bench refers to the request information sent by the demand side that can support building the adjustable bench.

[0126] Refer to Figures 3 - 5 , build the main ring 2 and the seat 3 on the welding platform 1.

[0127] In an embodiment of the present invention, in response to a request for building an adjustable bench, the first aluminum profile 2.1 is horizontally fixed on the welding platform 1 through bolts and nuts with the mounting holes 1.1 on the welding platform 1. Two groups of first linear guide rails 2.3 are respectively fixed on two second aluminum profiles 2.2 through hexagon socket head cap screws and nuts. Then, the two second aluminum profiles 2.2 are vertically installed and fixed at both ends of the first aluminum profile 2.1 through two first aluminum profile brackets 2.4 and bolts and nuts. Tensioning brackets 2.5, bearing seats 2.6, two groups of first synchronous belt pulleys 2.7 and a first belt 2.8 are respectively installed inside the two second aluminum profiles 2.2. The two groups of first synchronous belt pulleys 2.7 are respectively installed at the upper and lower ends inside each second aluminum profile 2.2. The two groups of first synchronous belt pulleys 2.7 on each second aluminum profile 2.2 are connected by the first belt 2.8. The first synchronous belt pulleys 2.7 at the lower ends inside the two second aluminum profiles 2.2 are connected by a rotating shaft 2.9. A first motor 2.10 is fixedly installed in the mounting holes 1.1 on the welding platform 1. The first motor 2.10 is connected to the rotating shaft 2.9 through a second belt 2.11. The main ring lifting platform 2.12 is fixedly connected to the first slider 2.13 on the first linear guide rail 2.3 through screws. Both ends of the main ring lifting platform 2.12 are connected to the first belt 2.8 through a belt clamping bracket 2.14. A camera 2.15 is magnetically installed on the main ring lifting platform 2.12. It can be understood that the seat 3 includes a seat cushion and a backrest. The seat cushion of the seat 3 is placed on the welding platform, and the backrest of the seat 3 is pressed against the side of the second aluminum profile 2.2 on the main ring 2 where the first linear guide rail 2.3 is installed.

[0128] Step 202: Fix and install a front partition front ring sliding platform on the welding platform, and build a front partition and a front ring on the front partition front ring sliding platform.

[0129] Refer to Figure 3 、 Figures 6 - 8 , build a front partition front ring sliding platform 4, a front partition 5 and a front ring 6 on the welding platform 1.

[0130] In an embodiment of the present invention, a rectangular frame composed of a third aluminum profile 4.1, two fourth aluminum profiles 4.2 and a fifth aluminum profile 4.3 is fixed on the welding platform 1 through four second aluminum profile brackets 4.4. Second linear guide rails 4.5 are respectively installed on the fourth aluminum profiles 4.2. A first mounting plate 4.6 and a second mounting plate 4.7 are respectively fixedly installed on the second sliders 4.9 of the second linear guide rails 4.5. A first motor bracket 4.10 is installed in the middle of the third aluminum profile 4.1. A second motor 4.13 is installed on the first motor bracket 4.10. A synchronous telescopic ball screw 4.8 is installed in the middle of the bottom surfaces of the first mounting plate 4.6 and the second mounting plate 4.7. The synchronous telescopic ball screw 4.8 is connected to the second motor 4.13 through a first coupling 4.11.

[0131] Fix the first ball screw 5.2 to two sixth aluminum profiles 5.1 through the first support 5.3 and the first mounting bracket 5.4 to form a front partition assembly, where the driving end of the first ball screw 5.2 is equipped with a second synchronous pulley 5.5. Vertically install the sixth aluminum profiles 5.1 of the two groups of front partition assemblies at both ends of the first mounting plate 4.6 through the third aluminum profile bracket 5.6, where the driving end of the first ball screw 5.2 is close to the welding platform 1, and the second synchronous pulleys 5.5 of the two groups of front partition assemblies are connected by a third belt 5.7. Install a third motor 5.9 at one end of the first mounting plate 4.6, and connect the third motor 5.9 to the second synchronous pulley 5.5 close to the third motor 5.9 through a fourth belt 5.8. Fix the front partition lifting platform 5.10 to the first lead screw nut 5.11 of the first ball screw 5.2 with screws.

[0132] It can be understood that the driving end of the first ball screw 5.2 refers to the input end of the motor driving force of the first ball screw 5.2.

[0133] Fix the second ball screw 6.2 to two seventh aluminum profiles 6.1 through the second support 6.3 and the second mounting bracket 6.4 to form a front ring assembly, where the driving end of the second ball screw 6.2 is equipped with a third synchronous pulley 6.5. Vertically install the seventh aluminum profiles 6.1 of the two groups of front ring assemblies at both ends of the second mounting plate 4.7 through the fourth aluminum profile bracket 6.6, where the driving end of the second ball screw 6.2 is close to the welding platform 1, and the third synchronous pulleys 6.5 of the two groups of front ring assemblies are connected by a fifth belt 6.7. Install a fourth motor 6.9 at one end of the second mounting plate 4.7, and connect the fourth motor 6.9 to the third synchronous pulley 6.5 close to the fourth motor 6.9 through a sixth belt 6.8. Fix the front ring lifting platform 6.10 to the second lead screw nut 6.11 of the second ball screw 6.2 with screws, and install a control button 6.12 and an observation plate 6.13 on the front ring lifting platform 6.10.

[0134] It can be understood that the driving end of the second ball screw 6.2 refers to the input end of the motor driving force of the second ball screw 6.2.

[0135] Step 203: Fix and install a braking system and a steering system between the front partition and the front ring on the welding platform.

[0136] Refer to Figure 3 、 Figures 9 - 10 , build a braking system 7 and a steering system 8 on the welding platform 1.

[0137] In the embodiment of the present invention, near the side of the first mounting plate 4.6 between the front partition 5 and the front ring 6, two first light electric control translation stages 7.1 are symmetrically mounted on the welding platform 1 inside the fourth aluminum profile 4.2. Third mounting plates 7.2 are respectively mounted on the upper surfaces of the two first light electric control translation stages 7.1. A rod-guided servo electric cylinder 7.3 and two eighth aluminum profiles 7.4 are fixedly connected to form a braking assembly, and the eighth aluminum profiles 7.4 in two groups of braking assemblies are respectively vertically mounted on the third mounting plates 7.2, and a ninth aluminum profile 7.5 is fixedly connected to the upper middle part of the eighth aluminum profile 7.4. The rod-guided servo electric cylinders 7.3 in the two groups of braking assemblies face each other inwardly, and the rod ends of the rod-guided servo electric cylinders 7.3 are close to the welding platform 1. Two tenth aluminum profiles 7.6 are respectively fixedly connected to the electric cylinder movable end mounting plates 7.7 at the movable ends of the rod-guided servo electric cylinders 7.3 in the two groups of braking assemblies, and third linear guides 7.8 are respectively mounted on the two tenth aluminum profiles 7.6. A third ball screw 7.9 is fixedly mounted in the middle of the bottom end of the pedal 7.10 to form a pedal assembly, and the two bottom ends of the pedal 7.10 in the pedal assembly are symmetrically mounted on the third sliders 7.11 of the third linear guides 7.8. A second motor bracket 7.12 is mounted at one end of the two tenth aluminum profiles 7.6, and a fifth motor 7.13 is mounted on the second motor bracket 7.12. The third ball screw 7.9 is connected to the fifth motor 7.13 through a second coupling 7.14.

[0138] It can be understood that the ninth aluminum profile 7.5 is arranged in the upper middle part of the eighth aluminum profile 7.4, and it only needs to be higher than the pedal 7.10. The movable end of the rod-guided servo electric cylinder 7.3 refers to the end where the rod in the rod-guided servo electric cylinder moves.

[0139] A second light electric control translation stage 8.1 is centrally mounted on the welding platform 1 between the braking system 7 and the front ring 6. A concave mounting plate 8.2 is mounted on the upper surface of the second light electric control translation stage 8.1, and a screw-lifting type worm screw lift 8.3 is mounted on the concave mounting plate 8.2. A third motor bracket 8.4 and a sixth motor 8.5 are mounted on the flange near the braking system side of the screw-lifting type worm screw lift 8.3, and an eleventh aluminum profile 8.6 is mounted on the flange near the front ring side. The eleventh aluminum profile 8.6 is vertically connected to the twelfth aluminum profile 8.7 through a handle-equipped movable hinge 8.8. A steering wheel mounting plate 8.9 is mounted on the upper surface of the twelfth aluminum profile 8.7, and a steering wheel 8.10 is mounted at one end of the steering wheel mounting plate 8.9 close to the front ring.

[0140] It can be understood that the synchronous telescopic ball screw 4.8 on the front partition front ring sliding platform 4 passes through the bottom of the tenth aluminum profile 7.6 of the braking system and the groove of the concave mounting plate 8.2 of the steering system.

[0141] Step 204: In response to the measurement signal, measure the initial seat angles of multiple riders through an adjustable bench, and determine the target seat angles based on the initial seat angles and the weights associated with each rider.

[0142] Optionally, step 204 includes the following sub-steps:

[0143] In response to the measurement signal, adjust the seat to move on the welding platform to the most comfortable positions and the limit positions of the seats corresponding to multiple riders respectively, and mark the most comfortable positions of all seats and the limit positions of all seats on the welding platform and the main ring respectively;

[0144] Measure the horizontal seat distances from the most comfortable positions and the limit positions of each seat to the plane of the main ring, and the vertical seat distances to the welding platform respectively;

[0145] Use the horizontal seat distances and the corresponding vertical seat distances of all seats to calculate the most comfortable angles and the limit angles of multiple seats through trigonometric relations; each limit angle of the seat includes the maximum angle of the seat and the minimum angle of the seat;

[0146] Calculate the first product values of the weights associated with each rider and the most comfortable angles of the seats to which they belong, and perform a summation operation on all the first product values to generate alternative seat angles;

[0147] Construct the acceptable angle ranges of the seats corresponding to each rider using the maximum angles and the corresponding minimum angles of all seats, and determine whether the alternative seat angles are within the acceptable angle ranges of all seats;

[0148] If so, use the alternative seat angles as the target seat angles; if not, select the overlapping range of the acceptable angle ranges of all seats, and select the range endpoint angle with the smallest difference from the alternative seat angles from the overlapping range as the target seat angles.

[0149] The most comfortable position of the seat refers to the most comfortable position of the rider in the seat parameters. The limit position of the seat refers to the limit position that the rider can accept in the seat parameters. The most comfortable angle of the seat refers to the seat angle corresponding to the most comfortable position of the seat. The limit angle of the seat refers to the seat angle corresponding to the limit position of the seat. The alternative seat angle refers to the seat angle obtained by calculating the weights using the seat measurement data of all riders. The acceptable angle range of the seat refers to the angle interval composed of the maximum angle and the minimum angle of the seat corresponding to the limit position of the seat.

[0150] In an embodiment of the present invention, in response to a measurement signal, the seat is adjusted to move on a welding platform to determine the most comfortable positions and the limit positions of the seats corresponding to multiple riders. The seat cushion positions corresponding to the most comfortable positions and the limit positions of the seats are marked on the welding platform, and the backrest pressing positions corresponding to the most comfortable positions and the limit positions of the seats are marked on the main ring. The horizontal distances of the seats from all the cushion positions to the plane where the main ring is located are measured respectively, and the vertical distances of the seats from all the backrest pressing positions to the welding platform are measured respectively. Trigonometric functions are used to calculate the horizontal distances of the seats and the corresponding vertical distances of the seats to obtain the corresponding most comfortable angles, maximum angles, and minimum angles of the seats. The first multiplication value is obtained by multiplying the weight of the rider and the corresponding most comfortable angle of the seat, and the sum of the first multiplication values of all riders is calculated to obtain the alternative angle of the seat. The acceptable angle ranges of the seats corresponding to each rider are constructed with the maximum angle and the minimum angle of the seat as the interval endpoints, and it is determined whether the alternative angle of the seat is within all the acceptable angle ranges of the seats. If so, the alternative angle of the seat is directly used as the target angle of the seat; if not, the overlapping range of the acceptable angle ranges of the seats is determined, and the range endpoint angle with the smallest difference from the acceptable angle range of the seat among the interval endpoints of the overlapping range is used as the target angle of the seat.

[0151] Step 205: Determine the target parameters of the steering wheel based on the target angle of the seat and the weight, and output the target parameters of the front ring according to the target parameters of the steering wheel and the front ring constraint conditions.

[0152] Optionally, step 205 includes the following sub-steps:

[0153] Based on the target angle of the seat, adjust the steering system to measure the most comfortable distance, the maximum distance, and the minimum distance of the steering wheel corresponding to each rider;

[0154] Calculate the second multiplication value of each weight and the corresponding most comfortable distance of the steering wheel, and calculate the sum of all the second multiplication values to generate the alternative distance of the steering wheel;

[0155] Form the acceptable distance ranges of the steering wheel corresponding to each rider according to all the maximum distances and the corresponding minimum distances of the steering wheel, and determine whether the alternative distance of the steering wheel is within all the acceptable distance ranges of the steering wheel;

[0156] If so, use the alternative distance of the steering wheel as the target distance of the steering wheel;

[0157] If not, determine the distance overlapping range of all the acceptable distance ranges of the steering wheel, and select the range endpoint distance with the smallest difference from the alternative distance of the steering wheel from the distance overlapping range as the target distance of the steering wheel;

[0158] Output the target parameters of the front ring according to the target distance of the steering wheel and the front ring constraint conditions.

[0159] Optionally, step 205 further includes the following sub-steps:

[0160] Based on the target distance of the steering wheel, adjust the steering system to measure the most comfortable height, the maximum height, and the minimum height of the steering wheel corresponding to each driver;

[0161] Calculate the third product value of each weight and the corresponding most comfortable height of the steering wheel, and perform a sum operation on all the third product values to generate an alternative height of the steering wheel;

[0162] Construct the acceptable height range of the steering wheel corresponding to each driver by using all the maximum heights of the steering wheel and the corresponding minimum heights of the steering wheel, and determine whether the alternative height of the steering wheel is within the acceptable height range of all the steering wheels;

[0163] If so, use the alternative height of the steering wheel as the target height of the steering wheel;

[0164] If not, determine the height overlap range of the acceptable height range of all the steering wheels, and select the range endpoint height with the smallest difference from the alternative height of the steering wheel as the target height of the steering wheel;

[0165] Output the front loop target parameters according to the target height of the steering wheel and the front loop constraint conditions.

[0166] Optionally, step 205 further includes the following sub-steps:

[0167] Based on the target height of the steering wheel, adjust the steering system to measure the most comfortable angle, the maximum angle, and the minimum angle of the steering wheel corresponding to each driver;

[0168] Calculate the fourth product value of each weight and the corresponding most comfortable angle of the steering wheel, and perform a sum operation on all the fourth product values to generate an alternative angle of the steering wheel;

[0169] Construct the acceptable angle range of the steering wheel corresponding to each driver according to all the maximum angles of the steering wheel and the corresponding minimum angles of the steering wheel, and determine whether the alternative angle of the steering wheel is within the acceptable angle range of all the steering wheels;

[0170] If so, use the alternative angle of the steering wheel as the target angle of the steering wheel;

[0171] If not, determine the angle overlap range of the acceptable angle range of all the steering wheels, and select the range endpoint angle with the smallest difference from the alternative angle of the steering wheel as the target angle of the steering wheel;

[0172] Jointly determine the target distance of the steering wheel, the target height of the steering wheel, and the target angle of the steering wheel as the target parameters of the steering wheel;

[0173] Based on the target parameters of the steering wheel, adjust the minimum vertical height from the observation board on the front ring to the welding platform according to the front ring constraint conditions, and adjust the maximum horizontal distance from the plane where the front ring is located to the plane where the main ring is located.

[0174] Use the minimum vertical height and the maximum horizontal distance as the target parameters of the front ring.

[0175] The most comfortable distance of the steering wheel, the most comfortable height of the steering wheel, and the most comfortable angle of the steering wheel refer to the most comfortable front - rear distance, the most comfortable height, and the most comfortable angle among the steering wheel parameters for the driver.

[0176] The maximum distance of the steering wheel, the minimum distance of the steering wheel, the maximum height of the steering wheel, the minimum height of the steering wheel, the maximum angle of the steering wheel, and the minimum angle of the steering wheel refer to the maximum front - rear distance, the minimum front - rear distance, the maximum height, the minimum height, the maximum angle, and the minimum angle that the driver can accept among the steering wheel parameters.

[0177] The alternative distance of the steering wheel, the alternative height of the steering wheel, and the alternative angle of the steering wheel refer to the front - rear distance, the height, and the angle of the steering wheel obtained by calculating the weighted values using the steering wheel measurement data of all drivers.

[0178] The acceptable distance range of the steering wheel, the acceptable height range of the steering wheel, and the acceptable angle range of the steering wheel refer to the front - rear distance interval, the height interval, and the angle interval respectively composed of the maximum distance and the minimum distance of the steering wheel, the maximum height and the minimum height of the steering wheel, and the maximum angle and the minimum angle of the steering wheel.

[0179] In the embodiment of the present invention, under the condition that the adjustable bench is at the target angle of the seat, with the plane where the main ring is located as the reference, control the second light - type electric translation stage through the control buttons on the front ring to adjust the front - rear distance between the center of the steering wheel and the plane where the main ring is located, determine the most comfortable distance, the maximum distance, and the minimum distance of the steering wheel corresponding to each driver. Multiply each weight by the corresponding most comfortable distance of the steering wheel to obtain the second multiplication value, and calculate the sum of all the second multiplication values to obtain the alternative distance of the steering wheel. Use the maximum distance and the minimum distance of the steering wheel as the interval endpoints to construct the acceptable distance range of the steering wheel corresponding to each driver. If it is determined that the alternative distance of the steering wheel is within all the acceptable distance ranges of the steering wheel, then use the alternative distance of the steering wheel as the target distance of the steering wheel. If it is determined that it is not, then construct the distance overlapping range of all the acceptable distance ranges of the steering wheel, and use the range endpoint distance with the smallest difference from the alternative distance of the steering wheel in the distance overlapping range as the target distance of the steering wheel.

[0180] Under the condition that the adjustable bench is at the target seat angle and the target steering wheel distance, the height between the center of the steering wheel and the welding platform is adjusted by controlling the screw-lifting type worm screw lifter through the control buttons on the front ring, and the most comfortable height, the maximum height and the minimum height of the steering wheel corresponding to each driver are determined. The third product value of each weight and the corresponding most comfortable height of the steering wheel is calculated, and the sum value operation is performed to obtain the alternative height of the steering wheel. The maximum height of the steering wheel and the corresponding minimum height of the steering wheel are used as the interval endpoints to form the acceptable height range of the steering wheel corresponding to each driver, and it is judged whether the alternative height of the steering wheel is within the acceptable height range of the steering wheel. If so, the alternative height of the steering wheel is used as the target height of the steering wheel; if not, the height overlapping range is generated according to all the acceptable height ranges of the steering wheel, and the range endpoint height with the smallest difference from the alternative height of the steering wheel is selected from the height overlapping range as the target height of the steering wheel.

[0181] Under the condition that the adjustable bench is at the target seat angle, the target steering wheel distance and the target steering wheel height, the angle between the steering wheel mounting plate and the horizontal plane is adjusted by adjusting the movable hinge with a handle, and the most comfortable angle, the maximum angle and the minimum angle of the steering wheel corresponding to each driver are measured by using an angle gauge. The fourth product value of each weight and the corresponding most comfortable angle of the steering wheel is calculated, and the sum value of all the fourth product values is used as the alternative angle of the steering wheel. The maximum angle of the steering wheel and the minimum angle of the steering wheel are used to form the acceptable angle range of the steering wheel. When it is determined that the alternative angle of the steering wheel is within all the acceptable angle ranges of the steering wheel, the alternative angle of the steering wheel is used as the target angle of the steering wheel. When it is determined that it is not within, the range endpoint angle with the smallest difference from the alternative angle of the steering wheel in the angle overlapping range of all the acceptable angle ranges of the steering wheel is used as the target angle of the steering wheel.

[0182] The target distance of the steering wheel, the target height of the steering wheel and the target angle of the steering wheel are determined as the target parameters of the steering wheel. Under the condition that the adjustable bench is at the target seat angle and the target parameters of the steering wheel, the minimum vertical height from the upper edge of the observation board to the welding platform is adjusted by controlling the fourth motor to adjust the front ring lifting platform through the control buttons on the front ring according to the front ring constraint conditions, and the maximum horizontal distance from the plane where the front ring is located to the plane where the main ring is located is adjusted by controlling the front partition front ring sliding platform to adjust the second mounting plate through the control buttons on the front ring according to the front ring constraint conditions. The minimum vertical height and the maximum horizontal distance are used as the target parameters of the front ring.

[0183] Step 206: After determining the target parameters of the front ring, the target height of the main ring is determined through the target parameters of the front ring and the main ring constraint conditions, and the target parameters of the pedal are determined by using the measured initial parameters of the pedal, weights, designed adjustable stroke and pedal constraint conditions.

[0184] Optionally, step 206 includes the following sub-steps:

[0185] After determining the front ring target parameters, according to the front ring target parameters, adjust the minimum height from the main ring lifting platform to the welding platform of the main ring according to the main ring constraint conditions, and take the minimum height as the main ring target height;

[0186] Adjust the braking system to measure the most comfortable height of the pedal base, the maximum height of the pedal base, the minimum height of the pedal base, the most comfortable pedal spacing, the maximum pedal spacing, and the minimum pedal spacing of each rider;

[0187] Calculate the fifth product value of the weight and the corresponding most comfortable height of the pedal base, and perform a sum operation on all the fifth product values to generate an alternative height of the pedal base; calculate the sixth product value of the weight and the corresponding most comfortable pedal spacing, and perform a sum operation on all the sixth product values to generate an alternative pedal spacing;

[0188] According to all the maximum heights of the pedal base and the corresponding minimum heights of the pedal base, as well as all the maximum pedal spacings and the corresponding minimum pedal spacings, construct the acceptable height range of the pedal base and the acceptable spacing range of the pedal corresponding to each rider respectively;

[0189] Judge whether the alternative height of the pedal base is within the acceptable height range of all the pedal bases, and judge whether the alternative pedal spacing is within the acceptable spacing range of all the pedals;

[0190] If so, take the alternative height of the pedal base and the alternative pedal spacing as the target height of the pedal base and the target pedal spacing;

[0191] If not, determine the overlapping range of the base heights of all the acceptable height ranges of the pedal base, or determine the overlapping range of the spacings of all the acceptable spacing ranges of the pedals;

[0192] Select the range end point height with the smallest difference from the alternative height of the pedal base from the overlapping range of the base heights, or select the range end point spacing with the smallest difference from the alternative pedal spacing from the overlapping range of the spacings as the target pedal spacing;

[0193] Based on the target height of the pedal base and the target pedal spacing, determine the target parameters of the pedal by using the weight, the designed adjustable stroke, and the pedal constraint conditions.

[0194] Optionally, step 206 further includes the following sub-steps:

[0195] Based on the target height of the pedal base and the target pedal spacing, adjust the braking system to measure the most comfortable pedal distance of each rider;

[0196] Select the maximum most comfortable pedal distance and the minimum most comfortable pedal distance from all the most comfortable pedal distances for difference operation to generate a first difference, and judge whether the first difference is less than or equal to the designed adjustable stroke;

[0197] If so, take the maximum pedal most comfortable distance and the minimum pedal most comfortable distance as the initial pedal target distance;

[0198] If not, calculate the designed adjustable stroke, the second difference from the pedal most comfortable distance with a smaller weight among the maximum pedal most comfortable distance and the minimum pedal most comfortable distance, and use the pedal most comfortable distance with a smaller weight and the second difference as the initial pedal target distance;

[0199] When the initial pedal target distance meets the pedal constraint conditions, take the initial pedal target distance as the final pedal target distance;

[0200] When the initial pedal target distance does not meet the pedal constraint conditions, update the designed adjustable stroke according to the pedal constraint conditions, and jump to execute the step of generating the second difference by performing a difference operation on the designed adjustable stroke and the pedal most comfortable distance with a smaller weight among the maximum pedal most comfortable distance and the minimum pedal most comfortable distance, and using the pedal most comfortable distance with a smaller weight and the second difference as the initial pedal target distance;

[0201] Determine the pedal target parameters based on the final pedal target distance and the weight.

[0202] Optionally, step 206 further includes the following sub-steps:

[0203] Based on the maximum pedal most comfortable distance in the final pedal target distance, measure the most comfortable height, the maximum height, and the minimum height of the pedal application point of all riders through the braking system;

[0204] Calculate the seventh product value of the weight and the corresponding most comfortable height of the pedal application point, and perform a sum operation on all the seventh product values to generate the alternative height of the pedal application point;

[0205] Construct the acceptable height range of the pedal application point corresponding to each rider according to all the maximum heights of the pedal application point and the corresponding minimum heights of the pedal application point, and determine whether the alternative height of the pedal application point is within the acceptable height range of all the pedal application points;

[0206] If so, take the alternative height of the pedal application point as the target height of the pedal application point;

[0207] If not, determine the overlapping range of the application point heights of the acceptable height range of each pedal application point, and select the height of the range end point with the smallest difference from the alternative height of the pedal application point from the acceptable height range of the pedal application point to update as the target height of the pedal application point;

[0208] Combine the target height of the pedal base, the pedal target spacing, the final pedal target distance, and the target height of the pedal application point, and output as the pedal target parameters.

[0209] The most comfortable height of the pedal base, the most comfortable spacing of the pedals, the most comfortable distance of the pedals, and the most comfortable height of the pedal force application point refer to the most comfortable height of the base, the most comfortable spacing, the most comfortable front-to-back distance, and the most comfortable height of the force application point among the pedal parameters for the rider.

[0210] The maximum height of the pedal base, the minimum height of the pedal base, the maximum spacing of the pedals, the minimum spacing of the pedals, the maximum height of the pedal force application point, and the minimum height of the pedal force application point refer to the maximum height of the base, the minimum height of the base, the maximum spacing, the minimum spacing, the maximum height of the force application point, and the minimum height of the force application point that the rider can accept among the pedal parameters.

[0211] The alternative height of the pedal base, the alternative spacing of the pedals, and the alternative height of the pedal force application point refer to the height of the pedal base, the spacing of the pedals, and the height of the pedal force application point obtained by weight calculation using the pedal measurement data of all riders.

[0212] The acceptable height range of the pedal base and the acceptable spacing range of the pedals refer to the height interval and the spacing interval respectively composed of the maximum height and the minimum height of the pedal base, and the maximum spacing and the minimum spacing of the pedals.

[0213] The initial pedal target distance refers to the pedal target distance that satisfies the constraint of the designed adjustable stroke.

[0214] In the embodiment of the present invention, under the conditions that the adjustable bench is at the seat target angle, the steering wheel target parameters, and the front ring target parameters, the first motor is controlled through the control button of the front ring according to the main ring constraint condition to adjust the main ring lifting platform to the minimum height of the welding platform, and the minimum height is used as the main ring target height.

[0215] When the adjustable bench is at the target angle of the seat, the target parameters of the steering wheel, and the target parameters of the front loop, the fifth motor and the servo electric cylinder with a guide rod are respectively controlled through the control buttons on the front loop to determine the most comfortable height, the maximum height, the minimum height of the pedal base, the most comfortable spacing, the maximum spacing, and the minimum spacing of the pedals for each driver, where the height of the pedal base is zero with the welding platform as the reference point. The respective weights are multiplied by the most comfortable height of the pedal base and the most comfortable spacing of the pedals to obtain the corresponding fifth product value and sixth product value, and the sum value operations are respectively performed on all the fifth product values and all the sixth product values to generate the alternative height of the pedal base and the alternative spacing of the pedals. The maximum height of the pedal base and the corresponding minimum height of the pedal base, the maximum spacing of the pedals and the corresponding minimum spacing of the pedals are respectively selected to construct the acceptable height range of the pedal base and the acceptable spacing range of the pedals. It is respectively determined whether the alternative height of the pedal base and the alternative spacing of the pedals are within the corresponding acceptable height range of the pedal base and the acceptable spacing range of the pedals. If so, the alternative height of the pedal base and the alternative spacing of the pedals are used as the target height of the pedal base and the target spacing of the pedals; if the alternative height of the pedal base is not within the acceptable height range of the pedal base, the overlapping range of the base heights of all the acceptable height ranges of the pedal base is determined, and the height of the range endpoint with the smallest difference from the alternative height of the pedal base is used as the target height of the pedal base; if the alternative spacing of the pedals is not within the acceptable spacing range of the pedals, the overlapping range of the spacings of all the acceptable spacing ranges of the pedals is determined, and the spacing of the range endpoint with the smallest difference from the alternative spacing of the pedals is selected from the overlapping range of the spacings as the target spacing of the pedals.

[0216] When the adjustable bench is at the seat target angle, steering wheel target parameters, front ring target parameters, pedal base target height, and pedal target spacing, use the control button on the front ring to control the first light electric translation stage to adjust the distance between the pedal and the plane where the main ring is located, and determine the most comfortable pedal distance for each driver. Compare all the most comfortable pedal distances, select the maximum and minimum most comfortable pedal distances, and calculate the first difference between the two. Determine whether the first difference is less than or equal to the designed adjustable stroke. If so, use it as the initial pedal target distance and continue to determine whether the pedal constraint conditions are met; if not, compare the weights corresponding to the maximum most comfortable pedal distance and the minimum most comfortable pedal distance, calculate the second difference between the designed adjustable stroke and the most comfortable pedal distance with the smaller weight between the two, use the most comfortable pedal distance with the smaller weight and the second difference as the initial pedal target distance, and determine whether the pedal constraint conditions are met. If the initial pedal target distance meets the pedal constraint conditions, output it as the final pedal target distance; if not, update the designed adjustable stroke according to the pedal constraint conditions, and jump to execute the step of using the designed adjustable stroke to perform a difference operation with the most comfortable pedal distance with the smaller weight among the maximum and minimum most comfortable pedal distances to generate the second difference, and use the most comfortable pedal distance with the smaller weight and the second difference as the initial pedal target distance.

[0217] When the adjustable bench is at the maximum most comfortable pedal distance among the seat target angle, steering wheel target parameters, front ring target parameters, pedal base target height, pedal target spacing, and final pedal target distance, use the braking system to measure the most comfortable height, maximum height, and minimum height of the pedal force application point corresponding to the metatarsophalangeal joint when all drivers step on the pedal. Perform a sum operation on all the seventh multiplication values according to the seventh multiplication value of each weight and the corresponding most comfortable height of the pedal force application point to obtain the alternative height of the pedal force application point. Form the acceptable height range of the pedal force application point corresponding to each driver with the maximum height and the corresponding minimum height of the pedal force application point, and determine whether the calculated alternative height of the pedal force application point is within the acceptable height range of all pedal force application points. If so, use the alternative height of the pedal force application point as the target height of the pedal force application point; if not, determine the overlapping range of the force application point heights of each acceptable height range of the pedal force application point, and select the range end point height with the smallest difference from the alternative height of the pedal force application point to update it as the target height of the pedal force application point. Output the pedal base target height, pedal target spacing, final pedal target distance, and pedal target force application point height as the pedal target parameters.

[0218] Step 207: Output the front partition target parameters according to the pedal target parameters, driver height, and front partition constraint conditions.

[0219] Optionally, step 207 includes the following sub-steps:

[0220] Based on the maximum most comfortable pedal distance among the pedal target parameters, adjust the minimum horizontal distance from the plane where the front bulkhead is located to the plane where the main ring is located according to the corresponding front bulkhead constraint conditions, and use it as the front bulkhead target distance;

[0221] After determining the front bulkhead target distance, select the tallest driver according to the heights of all drivers;

[0222] According to the line of sight of the tallest driver, adjust the front bulkhead according to the front bulkhead constraint conditions to determine the corresponding front bulkhead target height;

[0223] Output the combination of the front bulkhead target distance and the front bulkhead target height as the front bulkhead target parameters.

[0224] In the embodiment of the present invention, under the condition of the maximum most comfortable pedal distance among the seat target angle, the steering wheel target parameters, the front ring target parameters, the pedal base target height, the pedal target spacing, the pedal target force application point height, and the final pedal target distance of the adjustable test bench, select the driver corresponding to the maximum most comfortable pedal distance in the final pedal target distance to measure the front bulkhead target distance. Control the movement of the first mounting plate through the control button on the front ring according to the front bulkhead constraint conditions, and determine the minimum horizontal distance from the plane where the front bulkhead is located to the plane where the main ring is located as the front bulkhead target distance. In addition, compare the heights of all drivers, select the tallest driver to measure the front bulkhead target height, control the movement of the front bulkhead lifting platform through the control button on the front ring. When the line of sight of the tallest driver meets the front bulkhead constraint conditions, determine the vertical height from the upper edge of the front bulkhead lifting platform to the welding platform as the front bulkhead target height. Output the front bulkhead target distance and the front bulkhead target height as the front bulkhead target parameters.

[0225] Step 208: After determining the front bulkhead target parameters, measure the sharp-turn swing range of each driver, and select the largest sharp-turn swing range as the target width of the side collision prevention area.

[0226] In the embodiment of the present invention, the specific implementation process of step 208 is similar to that of step 105, and will not be elaborated here.

[0227] Step 209: Output the seat target angle, the steering wheel target parameters, the front ring target parameters, the main ring target height, the pedal target parameters, the front bulkhead target parameters, and the target width of the side collision prevention area as human-machine data.

[0228] In the embodiment of the present invention, the specific implementation process of step 209 is similar to that of step 106, and will not be elaborated here.

[0229] Optionally, after determining the human-machine data, the Human Posture Analysis module in the human-machine engineering module of CATIA can be used to analyze the driving posture score of the obtained human-machine data and obtain the comfort verification result, and corresponding adjustments can be made according to the verification result feedback.

[0230] In the embodiment of the present invention, in response to the adjustable bench building request, the main ring, seat, front bulkhead front ring sliding platform, braking system and steering system are built on the welding platform, and the front bulkhead and front ring are installed on the front bulkhead front ring sliding platform to form an adjustable bench. And in response to the measurement signal, the relevant initial data of the driver are determined by adjusting the adjustable bench, and in combination with the weights associated with all drivers and the corresponding constraint conditions, the human-machine data are determined in the order of the seat target angle, steering wheel target parameters, front ring target parameters, main ring target height, pedal target parameters, front bulkhead target parameters and side anti-collision area target width. By building an adjustable bench, the actual vehicle driving environment is effectively simulated, and the mutual influence between data is fully considered. The human-machine data measured and processed can take into account the driving needs of all drivers, and the convenience of human-machine data measurement can be improved on the basis of meeting the measurement data accuracy.

[0231] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A human-machine data measurement method based on an adjustable bench, characterized in that Relates to an adjustable mount, including: In response to a measurement signal, measuring the initial seat angles of multiple drivers through the adjustable mount, and determining the target seat angles according to the initial seat angles and the weights associated with each driver; Determining the target steering wheel parameters based on the target seat angles and the weights, and outputting the target front loop parameters according to the target steering wheel parameters and the front loop constraint conditions; After determining the target front loop parameters, determining the target main loop height through the target front loop parameters and the main loop constraint conditions, and determining the target pedal parameters by using the measured initial pedal parameters, the weights, the designed adjustable stroke, and the pedal constraint conditions; Outputting the target front bulkhead parameters according to the target pedal parameters, the driver's height, and the front bulkhead constraint conditions; After determining the target front bulkhead parameters, measuring the sharp turn swing ranges of each driver, and selecting the maximum sharp turn swing range as the target width of the side collision prevention area; Outputting the target seat angles, the target steering wheel parameters, the target front loop parameters, the target main loop height, the target pedal parameters, the target front bulkhead parameters, and the target width of the side collision prevention area as human-machine data; Before the step of, in response to a measurement signal, measuring the initial seat angles of multiple drivers through the adjustable mount, and determining the target seat angles according to the initial seat angles and the weights associated with each driver, includes: In response to a request for setting up the adjustable mount, fixing the main loop on the welding platform by bolts and nuts, and pressing and setting a seat on the main loop; Fixing and installing a front bulkhead front loop sliding platform on the welding platform, and setting up a front bulkhead and a front loop on the front bulkhead front loop sliding platform; Fixing and installing a braking system and a steering system between the front bulkhead and the front loop on the welding platform; The step of, in response to a measurement signal, measuring the initial seat angles of multiple drivers through the adjustable mount, and determining the target seat angles according to the initial seat angles and the weights associated with each driver, includes: In response to a measurement signal, adjusting the seat to move to the most comfortable positions and the limit positions of the seats corresponding to multiple drivers on the welding platform, and respectively marking all the most comfortable positions and all the limit positions of the seats on the welding platform and on the main loop; Respectively measuring the horizontal seat distances from each of the most comfortable positions and the limit positions of the seats to the plane where the main loop is located, and the vertical seat distances to the welding platform; Using all the horizontal seat distances and the corresponding vertical seat distances, calculating multiple most comfortable seat angles and multiple limit seat angles through trigonometric relations; each of the limit seat angles includes a maximum seat angle and a minimum seat angle; Calculating the first multiplication values of the weights associated with each driver and the corresponding most comfortable seat angles, and performing a summation operation on all the first multiplication values to generate alternative seat angles; Constructing an acceptable seat angle range corresponding to each driver by using all the maximum seat angles and the corresponding minimum seat angles, and determining whether the alternative seat angles are within all the acceptable seat angle ranges; If so, use the alternative seat angle as the target seat angle; if not, select the overlapping range of all the acceptable seat angle ranges, and select the range endpoint angle with the smallest difference from the alternative seat angle from the overlapping range as the target seat angle.

2. The human-machine data measurement method based on an adjustable bench according to claim 1, wherein, The step of determining the target steering wheel parameters based on the target seat angle and the weights and outputting the target front loop parameters according to the target steering wheel parameters and the front loop constraint conditions includes: Based on the target seat angle, adjust the steering system to measure the most comfortable distance, the maximum distance, and the minimum distance of the steering wheel corresponding to each driver. Calculate the second product of each weight and the corresponding most comfortable distance of the steering wheel, and perform a summation operation on all the second products to generate an alternative steering wheel distance. Form the acceptable steering wheel distance ranges corresponding to each driver according to all the maximum steering wheel distances and the corresponding minimum steering wheel distances, and determine whether the alternative steering wheel distance is within all the acceptable steering wheel distance ranges. If so, use the alternative steering wheel distance as the target steering wheel distance. If not, determine the distance overlapping range of all the acceptable steering wheel distance ranges, and select the range endpoint distance with the smallest difference from the alternative steering wheel distance from the overlapping range as the target steering wheel distance. Output the target front loop parameters according to the target steering wheel distance and the front loop constraint conditions.

3. The human-machine data measurement method based on an adjustable bench according to claim 2, wherein The step of outputting the target front loop parameters according to the target steering wheel distance and the front loop constraint conditions includes: Based on the target steering wheel distance, adjust the steering system to measure the most comfortable height, the maximum height, and the minimum height of the steering wheel corresponding to each driver. Calculate the third product of each weight and the corresponding most comfortable height of the steering wheel, and perform a summation operation on all the third products to generate an alternative steering wheel height. Construct the acceptable steering wheel height ranges corresponding to each driver using all the maximum steering wheel heights and the corresponding minimum steering wheel heights, and determine whether the alternative steering wheel height is within all the acceptable steering wheel height ranges. If so, use the alternative steering wheel height as the target steering wheel height. If not, determine the height overlapping range of all the acceptable steering wheel height ranges, and select the range endpoint height with the smallest difference from the alternative steering wheel height from the overlapping range as the target steering wheel height. Output the target front loop parameters according to the target steering wheel height and the front loop constraint conditions.

4. The human-machine data measurement method based on an adjustable bench according to claim 3, wherein The step of outputting the target front loop parameters according to the target steering wheel height and the front loop constraint conditions includes: Based on the target steering wheel height, adjust the steering system to measure the most comfortable angle, the maximum angle, and the minimum angle of the steering wheel corresponding to each driver. Calculate the fourth product of each weight and the corresponding most comfortable angle of the steering wheel, and perform a summation operation on all the fourth products to generate an alternative steering wheel angle. Construct the acceptable steering wheel angle ranges corresponding to each driver based on all the maximum steering wheel angles and the corresponding minimum steering wheel angles, and determine whether the alternative steering wheel angle is within all the acceptable steering wheel angle ranges; If so, use the alternative steering wheel angle as the target steering wheel angle; If not, determine the overlapping angle range of all the acceptable steering wheel angle ranges, and select the range endpoint angle with the smallest difference from the alternative steering wheel angle as the target steering wheel angle from the overlapping angle range; Combine the target steering wheel distance, the target steering wheel height, and the target steering wheel angle to determine the target steering wheel parameters; Based on the target steering wheel parameters, adjust the minimum vertical height from the viewing plate on the front ring to the welding platform according to the front ring constraint conditions, and adjust the maximum horizontal distance from the plane of the front ring to the plane of the main ring; Use the minimum vertical height and the maximum horizontal distance as the target front ring parameters.

5. The human-machine data measurement method based on an adjustable bench according to claim 1, wherein The steps of determining the target main ring height through the target front ring parameters and the main ring constraint conditions, and then determining the target pedal parameters using the measured initial pedal parameters, the weights, the designed adjustable stroke, and the pedal constraint conditions after determining the target front ring parameters include: After determining the target front ring parameters, according to the target front ring parameters, adjust the minimum height from the main ring lifting platform of the main ring to the welding platform according to the main ring constraint conditions, and use the minimum height as the target main ring height; Adjust the braking system to measure the most comfortable height, the maximum height, the minimum height of the pedal base, the most comfortable pedal spacing, the maximum pedal spacing, and the minimum pedal spacing for each driver; Calculate the fifth product value of the weight and the corresponding most comfortable height of the pedal base, and perform a sum operation on all the fifth product values to generate an alternative pedal base height; calculate the sixth product value of the weight and the corresponding most comfortable pedal spacing, and perform a sum operation on all the sixth product values to generate an alternative pedal spacing; Construct the acceptable pedal base height ranges and the acceptable pedal spacing ranges corresponding to each driver based on all the maximum pedal base heights and the corresponding minimum pedal base heights, and all the maximum pedal spacings and the corresponding minimum pedal spacings; Determine whether the alternative pedal base height is within all the acceptable pedal base height ranges, and determine whether the alternative pedal spacing is within all the acceptable pedal spacing ranges; If so, use the alternative pedal base height and the alternative pedal spacing as the target pedal base height and the target pedal spacing; If not, determine the overlapping base height range of all the acceptable pedal base height ranges, or determine the overlapping spacing range of all the acceptable pedal spacing ranges; Select the range endpoint height with the smallest difference from the alternative pedal base height as the target pedal base height from the overlapping base height range, or select the range endpoint spacing with the smallest difference from the alternative pedal spacing as the target pedal spacing from the overlapping spacing range; Based on the target height of the pedal base and the target spacing of the pedals, the pedal target parameters are determined by using the weights, the designed adjustable stroke, and the pedal constraint conditions.

6. The human-machine data measurement method based on an adjustable bench according to claim 5, wherein, The step of determining the pedal target parameters by using the weights, the designed adjustable stroke, and the pedal constraint conditions based on the target height of the pedal base and the target spacing of the pedals includes: Based on the target height of the pedal base and the target spacing of the pedals, adjust the braking system to measure the most comfortable distance of the pedals of each rider; Select the maximum and minimum most comfortable distances of the pedals from all the most comfortable distances of the pedals to perform a difference operation to generate a first difference, and determine whether the first difference is less than or equal to the designed adjustable stroke; If so, use the maximum and minimum most comfortable distances of the pedals as the initial pedal target distances; If not, calculate the designed adjustable stroke and the second difference between the designed adjustable stroke and the most comfortable distance of the pedal with the smaller weight among the maximum and minimum most comfortable distances of the pedals, and use the most comfortable distance of the pedal with the smaller weight and the second difference as the initial pedal target distance; When the initial pedal target distance satisfies the pedal constraint conditions, use the initial pedal target distance as the final pedal target distance; When the initial pedal target distance does not satisfy the pedal constraint conditions, update the designed adjustable stroke according to the pedal constraint conditions, and jump to execute the step of performing a difference operation between the designed adjustable stroke and the most comfortable distance of the pedal with the smaller weight among the maximum and minimum most comfortable distances of the pedals to generate a second difference, and using the most comfortable distance of the pedal with the smaller weight and the second difference as the initial pedal target distance; Determine the pedal target parameters by using the final pedal target distance and the weights.

7. The human-machine data measurement method based on an adjustable bench according to claim 6, wherein The step of determining the pedal target parameters by using the final pedal target distance and the weights includes: Based on the maximum most comfortable distance in the final pedal target distance, use the braking system to measure the most comfortable height, the maximum height, and the minimum height of the pedal application points of all the riders; Calculate the seventh product of the weights and the corresponding most comfortable heights of the pedal application points, and perform a sum operation on all the seventh products to generate an alternative height of the pedal application point; Construct an acceptable height range of the pedal application points corresponding to each rider according to all the maximum heights of the pedal application points and the corresponding minimum heights of the pedal application points, and determine whether the alternative height of the pedal application point is within the acceptable height range of all the pedal application points; If so, use the alternative height of the pedal application point as the target height of the pedal application point; If not, determine the overlapping range of the application point heights of the acceptable height ranges of the pedal application points, and select the range endpoint height with the smallest difference from the alternative height of the pedal application point in the acceptable height range of the pedal application points to update as the target height of the pedal application point; Combine the target height of the pedal base, the target spacing of the pedals, the final pedal target distance, and the target height of the pedal application point, and output as the pedal target parameters.

8. The human-machine data measurement method based on an adjustable bench according to claim 1, characterized in that The step of outputting the front bulkhead target parameters according to the pedal target parameters, the rider's height, and the front bulkhead constraint conditions includes: Taking the maximum most comfortable pedal distance in the pedal target parameters as a reference, adjusting the minimum horizontal distance from the plane where the front bulkhead is located to the plane where the main ring is located according to the corresponding front bulkhead constraint conditions as the front bulkhead target distance; After determining the front bulkhead target distance, selecting the tallest rider according to the heights of all the riders; According to the sight line situation of the tallest rider, adjusting the front bulkhead to determine the corresponding front bulkhead target height according to the front bulkhead constraint conditions; Combining the front bulkhead target distance and the front bulkhead target height and outputting them as the front bulkhead target parameters.

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