Platform for testing human physiological characteristics and biomechanics in dynamic driving and riding environment

Abstract

The invention particularly relates to a dynamic driving environment human physiological property and biomechanical test platform. The platform comprises a test board; the data monitoring machine is assembled on the right side of the test board; an electrocardiogram monitoring unit; a body temperature monitoring unit; a respiration monitoring unit; a blood pressure monitoring unit; a platform motion monitoring unit; the seat test unit is fixedly assembled at the upper end of the test bench; the vibration generating unit is assembled at the lower end of the test bench; the vibration generating unit comprises: a vibration generating unit; the two double-rotation vibrators are circumferentially and symmetrically assembled on the front side and the rear side of the lower end of the test bench; the four groups of elastic telescopic assemblies are fixedly assembled at four corners of the lower end of the test bench respectively; the elastic telescopic assembly comprises a first elastic part and a second elastic part, the sliding column is fixedly assembled at the lower end of the test bench; the sliding cylinder is assembled on the lower side of the sliding column; the mounting base is fixedly assembled at the lower end of the sliding cylinder; and the spring is fixedly assembled between the sliding column and the mounting base.

Description

Technical Field

[0001] This invention belongs to the field of driving test technology, specifically relating to a dynamic driving environment human physiological characteristics and biomechanical testing platform. Background Technology

[0002] When cars drive on uneven roads, drivers are exposed to continuous low-frequency vertical vibrations caused by factors such as the characteristics of the vehicle's suspension system. Similarly, truck drivers, due to their large loads, long mileage, and complex and variable road conditions, are prone to prolonged exposure to vertical vibrations. This unique vertical vibration load is believed to significantly impact the driver's physiological state, such as cardiovascular function, respiratory rhythm, body temperature regulation, fatigue level, and physical biomechanical load, thus affecting driving safety and occupational health. However, accurately reproducing this specific vibration pattern in a laboratory environment and simultaneously, comprehensively, and without interference, collecting relevant human physiological and biomechanical data to scientifically quantify its impact has always been a challenge in research and practice. Therefore, this paper provides a dynamic driving environment human physiological characteristics and biomechanical testing platform to test data on the human physiological characteristics of truck drivers in a vertical vibration environment. Summary of the Invention

[0003] The purpose of this invention is to provide a dynamic driving environment human physiological characteristics and biomechanical testing platform to solve the problems existing in the background technology.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A dynamic driving environment human physiological characteristics and biomechanical testing platform.

[0006] Including the test bench;

[0007] A data monitoring unit, mounted on the right side of the test bench, is used to display monitoring data;

[0008] Electrocardiogram (ECG) monitoring unit, used for monitoring human heart rate;

[0009] Body temperature monitoring unit, used for monitoring human body surface temperature;

[0010] A respiratory monitoring unit is used to monitor human respiratory rate and respiratory depth.

[0011] Blood pressure monitoring unit, used for monitoring human blood pressure;

[0012] Platform motion monitoring unit, used for platform linear motion monitoring;

[0013] A seat testing unit, which is fixedly mounted on the upper part of the testing platform, is used for human driving tests;

[0014] A vibration generating unit is assembled at the lower end of the test bench;

[0015] The vibration generating unit includes;

[0016] Two double-rotary vibrators are symmetrically mounted on the front and rear sides of the lower end of the test bench, with their two ends facing the left and right sides respectively. The eccentric blocks at both ends of the double-rotary vibrators are symmetrically mounted on the front and rear sides, and the transmission ends on both sides rotate in opposite directions.

[0017] Four sets of elastic telescopic components are respectively fixedly assembled at the four corners of the lower end of the test platform;

[0018] The elastic telescopic component includes;

[0019] A sliding column, which is fixedly assembled at the lower end of the test platform;

[0020] A sliding cylinder is assembled on the lower side of the sliding column and is slidably connected to the sliding column in a vertical manner;

[0021] The mounting base is fixedly assembled to the lower end of the slide cylinder;

[0022] A spring is fixedly assembled between the slide and the mounting base.

[0023] Preferably, the seat testing unit includes;

[0024] A pedal, which is mounted on the upper end of the test bench;

[0025] The bracket is fixedly mounted on the upper end of the test platform;

[0026] A seat cushion, which is fitted onto the upper end of the bracket;

[0027] The backrest is mounted on the upper end of the bracket and is located on the right side of the seat cushion.

[0028] Preferably, the seat testing unit further includes;

[0029] A seat pressure distribution sensor, which is a thin-film sensor, is laid flat on the surface of the seat cushion and is used to test the seat pressure distribution.

[0030] The backrest pressure sensor is a thin-film sensor that is laid flat on the backrest surface to test the backrest pressure.

[0031] A pedal pressure sensor is attached to the surface of the pedal and is used to test the pedal pressure.

[0032] Preferably, the respiratory monitoring unit includes;

[0033] A respiratory sensory transducer is fixed around the human chest cavity;

[0034] A nasal airflow sensor, which is mounted in the nostrils of a person.

[0035] Preferably, the blood pressure monitoring unit includes;

[0036] A finger blood pressure monitor is used to monitor changes in human blood pressure in dynamic environments.

[0037] Preferably, the platform motion monitoring unit includes;

[0038] A vibration sensor, which is mounted on a test bench, is used to monitor the state of the test bench when it moves.

[0039] Preferably, the body temperature monitoring unit includes;

[0040] Skin temperature patch sensors are installed in contact with the human body to monitor real-time body temperature.

[0041] Advantages of this invention:

[0042] The advantages of this device lie in its ability to simulate the unique vertical linear vibration environment of a large truck, and under this dynamic condition, to achieve synchronous, real-time, and integrated monitoring of multi-dimensional physiological signals of the human body, such as heart rate, respiration, body temperature, and blood pressure, as well as key biomechanical parameters, such as the pressure distribution of the seat, backrest, and pedals. Through the specific arrangement of the dual-head vibration motors combined with the design of the four corner elastic telescopic components, the motion freedom of the test platform is effectively restricted, ensuring that the vibration direction is mainly vertical, accurately simulating the core vibration characteristics of truck driving. At the same time, all data is centrally displayed and recorded through a data monitoring unit, providing a highly integrated and highly simulated experimental platform and comprehensive data support for studying the impact of truck vibration on ergonomics, comfort, fatigue, and safety. Attached Figure Description

[0043] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0044] Figure 1 This is a schematic diagram of the structure of a dynamic driving environment human physiological characteristics and biomechanical testing platform according to the present invention;

[0045] Figure 2 This is a cross-sectional structural schematic diagram of a dynamic driving environment human physiological characteristics and biomechanical testing platform according to the present invention.

[0046] Figure 3 This is an experimental schematic diagram of the present invention;

[0047] Figure 4 This refers to the seat pressure sensor in this invention;

[0048] Figure 5 This is the vibration sensor used in this invention.

[0049] The symbols for the main components are explained below:

[0050] Test bench 1, data monitoring machine 11, seat test unit 12, pedal 121, bracket 122, seat cushion 123, backrest 124, vibration generating unit 13, double rotary vibrator 131, elastic telescopic component 132, slide column 1321, slide cylinder 1322, mounting base 1323, spring 1324. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0052] like Figure 1-2 As shown, the present invention provides a dynamic driving environment human physiological characteristics and biomechanical testing platform, including a test bench 1;

[0053] The data monitoring unit 11 is mounted on the right side of the test bench 1 and is used to display monitoring data;

[0054] Electrocardiogram (ECG) monitoring unit, used for monitoring human heart rate;

[0055] Body temperature monitoring unit, used for monitoring human body surface temperature;

[0056] The body temperature monitoring unit includes;

[0057] Skin temperature patch sensors are installed in contact with the human body to monitor real-time body temperature.

[0058] A respiratory monitoring unit is used to monitor human respiratory rate and respiratory depth.

[0059] The respiratory monitoring unit includes;

[0060] A respiratory sensory transducer is fixed around the human chest cavity;

[0061] A nasal airflow sensor, which is mounted in the nostrils of a person.

[0062] Blood pressure monitoring unit, used for monitoring human blood pressure;

[0063] The blood pressure monitoring unit includes;

[0064] A finger blood pressure monitor is used to monitor changes in human blood pressure in dynamic environments.

[0065] Platform motion monitoring unit, used for platform linear motion monitoring;

[0066] The platform motion monitoring unit includes:

[0067] A vibration sensor, mounted on test bench 1, is used to monitor the state of test bench 1 during movement. The vibration sensor is secured with rigid gaskets and then glued to the test point.

[0068] The seat testing unit 12 is fixedly mounted on the upper end of the test bench 1 and is used for human driving tests.

[0069] Seat test unit 12 includes;

[0070] The pedal 121 is mounted on the upper end of the test bench 1;

[0071] The bracket 122 is fixedly assembled on the upper end of the test bench 1;

[0072] Seat cushion 123, which is mounted on the upper end of bracket 122;

[0073] The backrest 124 is mounted on the upper end of the bracket 122 and is located on the right side of the seat cushion 123.

[0074] Seat test unit 12 also includes;

[0075] The seat pressure distribution sensor is a thin-film sensor that is laid flat on the surface of the seat cushion 123 to test the seat pressure distribution.

[0076] The backrest pressure sensor is a thin-film sensor that is laid flat on the surface of the backrest 124 to test the backrest pressure.

[0077] A pedal pressure sensor is attached to the surface of pedal 121 and is used to test pedal pressure.

[0078] Vibration generating unit 13 is assembled at the lower end of test bench 1;

[0079] The vibration generating unit 13 includes:

[0080] Two double rotary vibrators 131 are symmetrically mounted on the front and rear sides of the lower end of the test bench 1, with their two ends facing the left and right sides respectively. The eccentric blocks at both ends of the double rotary vibrators 131 are symmetrically mounted on the front and rear sides, and the transmission ends on both sides rotate in opposite directions.

[0081] Four sets of elastic telescopic components 132 are respectively fixedly assembled at the four corners of the lower end of the test bench 1;

[0082] The elastic telescopic component 132 includes;

[0083] The sliding column 1321 is fixedly assembled at the lower end of the test bench 1;

[0084] The slide cylinder 1322 is mounted on the lower side of the slide column 1321 and is slidably connected to the slide column 1321 in a vertical manner;

[0085] Mounting base 1323 is fixedly assembled to the lower end of slide cylinder 1322;

[0086] Spring 1324 is fixedly mounted between slide column 1321 and mounting base 1323.

[0087] During the test, the tester first enters the test area, sits on the seat test unit 12, adjusts his / her posture, and simulates driving. Then, the tester is fitted with a skin temperature sensor patch for ECG monitoring, a respiratory sensor tape and nasal airflow sensor for respiratory monitoring, and a finger blood pressure monitor for blood pressure monitoring, and connected to the data monitoring unit 11. At the same time, it is ensured that the seat pressure distribution sensor, backrest pressure sensor, and pedal pressure sensor on the seat test unit 12 are all installed in place and connected to the data monitoring unit 11.

[0088] After verifying that all sensor connections are correct, the vibration generating unit 13 is activated, and the two double rotary vibrators 131 begin to work. The eccentric blocks at both ends of the motor rotate synchronously in opposite directions. The horizontal force is counteracted by the two circumferentially symmetrical double rotary vibrators 131, thus generating only the vertical force. Together with the four sets of elastic telescopic components 132 fixed at the four corners of the lower end of the test bench 1, the entire test bench 1 is driven to simulate the typical vertical linear vibration of a large truck during driving.

[0089] The vibration sensor of the platform motion monitoring unit monitors and records the vertical linear velocity of the test bench 1 in real time. During the continuous vibration test, the data monitoring unit 11 synchronously collects and displays the human heart rate from the electrocardiogram monitoring unit, the real-time body surface temperature from the body temperature monitoring unit, the respiratory rate and depth from the respiratory monitoring unit, the dynamic blood pressure changes from the blood pressure monitoring unit, the pressure distribution data from the seat, backrest, and pedal pressure sensors, and the linear velocity data of the platform motion. After the test, the vibration generating unit 13 is stopped, the subject leaves the test bench, and all sensor data are collected to analyze the comprehensive impact of vertical vibration under the truck driving environment on human physiological and biomechanical indicators.

[0090] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A dynamic driving environment human physiological characteristics and biomechanical testing platform, characterized in that: Including the test bench; A data monitoring unit, mounted on the right side of the test bench, is used to display monitoring data; Electrocardiogram (ECG) monitoring unit, used for monitoring human heart rate; Body temperature monitoring unit, used for monitoring human body surface temperature; A respiratory monitoring unit is used to monitor human respiratory rate and respiratory depth. Blood pressure monitoring unit, used for monitoring human blood pressure; Platform motion monitoring unit, used for platform linear motion monitoring; A seat testing unit, which is fixedly mounted on the upper part of the testing platform, is used for human driving tests; A vibration generating unit is assembled at the lower end of the test bench; The vibration generating unit includes; Two double-rotary vibrators are symmetrically mounted on the front and rear sides of the lower end of the test bench, with their two ends facing the left and right sides respectively. The eccentric blocks at both ends of the double-rotary vibrators are symmetrically mounted on the front and rear sides, and the transmission ends on both sides rotate in opposite directions. Four sets of elastic telescopic components are respectively fixedly assembled at the four corners of the lower end of the test platform; The elastic telescopic component includes; A sliding column, which is fixedly assembled at the lower end of the test platform; A sliding cylinder is assembled on the lower side of the sliding column and is slidably connected to the sliding column in a vertical manner; The mounting base is fixedly assembled to the lower end of the slide cylinder; A spring is fixedly assembled between the slide and the mounting base.

2. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 1, characterized in that: The seat testing unit includes: A pedal, which is mounted on the upper end of the test bench; A bracket, which is fixedly assembled on the upper end of the test platform; A seat cushion, which is fitted onto the upper end of the bracket; The backrest is mounted on the upper end of the bracket and is located on the right side of the seat cushion.

3. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 2, characterized in that: The seat testing unit also includes; A seat pressure distribution sensor, which is a thin-film sensor, is laid flat on the surface of the seat cushion and is used to test the seat pressure distribution. The backrest pressure sensor is a thin-film sensor that is laid flat on the backrest surface to test the backrest pressure. A pedal pressure sensor is attached to the surface of the pedal and is used to test the pedal pressure.

4. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 3, characterized in that: The respiratory monitoring unit includes; A respiratory sensory transducer is fixed around the human chest cavity; A nasal airflow sensor, which is mounted in the nostrils of a person.

5. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 4, characterized in that: The blood pressure monitoring unit includes: A finger blood pressure monitor is used to monitor changes in human blood pressure in dynamic environments.

6. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 5, characterized in that: The platform motion monitoring unit includes: A vibration sensor, which is mounted on a test bench, is used to monitor the state of the test bench when it moves.

7. The dynamic driving environment human physiological characteristics and biomechanical testing platform according to claim 6, characterized in that: The body temperature monitoring unit includes: Skin temperature patch sensors are installed in contact with the human body to monitor real-time body temperature.

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