CN118225026B - Detection tool and detection method for skin forming quality of automobile collision dummy chest - Google Patents
Detection tool and detection method for skin forming quality of automobile collision dummy chest Download PDFInfo
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- 210000000038 chest Anatomy 0.000 claims description 117
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention relates to the field of performance detection of collision dummy, in particular to a detection tool and a detection method for the skin forming quality of a chest of an automobile collision dummy. The detection tool includes: the device comprises a rotary platform and lifting slide rail integrated base, a lifting slide rail bracket, an annular slide rail, a fan-shaped embedded slide rail, a scanning detector base, a pitching joint, a scanning detection probe and a skin lifting bracket, wherein the lifting slide rail bracket, the annular slide rail, the fan-shaped embedded slide rail, the scanning detector base, the pitching joint, the scanning detection probe and the skin lifting bracket are arranged on the integrated base; the scanning detector base and the pitching joint are used for driving the scanning detection probe to move so as to realize scanning of the chest skin to be detected; the skin lifting bracket is arranged on the lifting sliding rail bracket and is used for lifting and fixing the chest skin to be tested. The invention can not damage the dummy chest skin, the detection process is objective and reliable, and the quality of the dummy chest skin can be quantified, reliably detected with low cost.
Description
Technical Field
The invention relates to the field of performance detection of collision dummy, in particular to a detection tool and a detection method for the skin forming quality of a chest of an automobile collision dummy.
Background
In recent years, the industrial product of automobiles is rapidly popularized to household users along with the social development, and the traffic safety situation is also increasing. In tests with greater risk and uncertainty to the human body, in order to better acquire human body injury data and guide safety design at lower cost, automobile crash test dummies have become an indispensable test device for evaluating automobile crash safety. In casualties caused by traffic accidents, chest injury is one of the main causes of passenger injury caused by craniocerebral injury.
As the primary contact during a chest crash, chest skin is also the first crash barrier for a crash dummy, which includes a skin layer and a muscle filling layer, which directly contact the outside and respond first in an automobile crash test. The skin of the dummy ensures that relevant signals such as external impact, acceleration and the like are accurately transmitted into the internal sensor, and certain use frequency is ensured, so that the material characteristics and the molding quality of the skin of the dummy have great influence on biomechanical response of the dummy in the whole collision process. Aiming at the flexibility required by the skin and the interlayer on the material characteristics, the method is better solved by means of raw material selection, modulation and the like. However, due to the sealing property and cost of the skin, the currently adopted destructive detection and experience accumulation cannot accurately and conveniently detect the thickness, uniformity and other molding quality of the skin, and further detect the defects of the mold through the detection of skin products, so as to guide the process improvement. If the forming quality such as uniformity of the core collision area cannot be stably ensured, the mechanical response of collision is greatly different, and the reliability of the chest response of the dummy is further affected. Therefore, in order to realize the accuracy of collision response and data and the quantitative detection of product production, and also to discover the potential defects of the mold as soon as possible, the process improvement is guided, the manufacturing cost loss is reduced, the economic benefit is improved, and the detection and evaluation system for the molding quality of the chest skin is deduced.
At present, no quantitative detection method and equipment and no corresponding evaluation method and standard exist for the skin molding quality; fuzzy qualitative assessment is mainly performed depending on the accumulation of experience of a processor and high-cost damage detection, which often causes variability of collision mechanical response and further influences the credibility of the chest response of the dummy.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a detection tool and a detection method for the skin forming quality of a breast of an automobile collision dummy, so as to solve the problem that the skin forming quality of the breast of the existing dummy cannot be quantified, reliably detected and detected at low cost.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the present invention provides a tool for detecting the skin formation quality of a breast of an automobile crash dummy, comprising:
the device comprises a rotary platform and lifting slide rail integrated base, a lifting slide rail bracket, an annular slide rail, a fan-shaped embedded slide rail, a scanning detector base, a pitching joint, a scanning detection probe and a skin lifting bracket, wherein the lifting slide rail bracket, the annular slide rail, the fan-shaped embedded slide rail, the scanning detector base, the pitching joint, the scanning detection probe and the skin lifting bracket are arranged on the lifting slide rail integrated base;
The lifting slide rail bracket, the annular slide rail, the fan-shaped embedded slide rail, the scanning detector base, the pitching joint and the scanning detection probe are sequentially connected; the scanning detector base and the pitching joint are used for driving the scanning detection probe to move so as to realize scanning of the chest skin to be detected;
the skin lifting bracket is arranged on the lifting sliding rail bracket and is used for lifting and fixing the chest skin to be tested.
In a second aspect, the invention provides a method for detecting the skin forming quality of a chest of an automobile collision dummy, which comprises the following steps:
Acquiring detection data of the chest skin to be detected in each detection area; the detection data are thickness-travel data, the thickness is the thickness of each detection point of the chest skin to be detected, and the travel is the travel of the scanning detection probe according to a scanning path in the detection process;
And judging whether the chest cortex quantity to be detected is qualified or not according to the detection data and the standard channel.
In a third aspect, the present invention provides a device for detecting the quality of skin formation of a collision dummy's chest, comprising:
The acquisition module is used for acquiring detection data of the chest skin to be detected in each detection area; the detection data are thickness-travel data, the thickness is the thickness of each detection point of the chest skin to be detected, and the travel is the travel of the scanning detection probe according to a scanning path in the detection process;
And the judging module is used for judging whether the chest cortex quantity to be detected is qualified or not according to the detection data and the standard channel.
In a fourth aspect, the present invention provides an electronic device, comprising:
At least one processor, and a memory communicatively coupled to at least one of the processors;
wherein the memory stores instructions executable by at least one of the processors, the instructions being executable by at least one of the processors to enable at least one of the processors to perform the method described above.
In a fifth aspect, the present invention provides a computer readable storage medium having stored thereon computer instructions for causing a computer to perform the above-described method.
Compared with the prior art, the invention has the beneficial effects that:
The detection tool for the skin forming quality of the automobile collision dummy chest provided by the invention adopts an integrated structure of a rotary platform and a lifting slide rail, a lifting slide rail bracket, an annular slide rail, a fan-shaped embedded slide rail, a scanning detector base, a pitching joint, a scanning detection probe and a skin lifting bracket, the scanning detector base and the pitching joint are used for driving the scanning detection probe to move so as to realize scanning of the chest skin to be detected, the lifting and fixing of the chest skin to be detected is realized through the skin lifting bracket, and further, the detection tool is assembled by a plurality of modules, effective matching of the modules is ensured, the omni-directional scanning detection of multiple degrees of freedom is carried out on the skin, the detection tool does not damage the dummy chest skin, the detection process is objective and reliable, and the skin forming quality of the dummy chest can be quantized, reliable and low-cost detected.
The detection method of the skin forming quality of the chest of the automobile collision dummy can be carried out by adopting the detection device, and has at least the same advantages as the device. In addition, the method also sets a specific detection area, designs different detection paths according to different detection areas, fully considers the collision action mode and the action area, and improves the reliability of the detection result. Furthermore, the method is also provided with a standard channel, when the detection data are in the standard channel, the quality of the chest cortex to be detected is judged to be qualified, and when the detection data are not in the standard channel, the stroke index and the limit index are further combined to judge whether the quality of the chest cortex to be detected is qualified.
The tool and the detection method are not only suitable for detecting the chest skin of a dummy, but also suitable for detecting the chest skin of different types of dummy such as Hybrid-III, thor and the like, and different areas of the chest have different evaluation standards.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a tool for detecting the skin formation quality of a chest of an automobile crash dummy;
FIG. 2 is a detail view of a base with a rotary platform and a lifting slide rail;
FIG. 3 is a detail view of the lifting slide rail bracket;
FIG. 4 is a detail view of the annular slide rail and the fan-shaped embedded slide rail;
FIG. 5 is a detailed view of a scanning detector base;
FIG. 6 is a detailed view of a pitch joint;
FIG. 7 is a detail view of the skin lifting carriage;
FIG. 8 is a diagram showing the overall effect of the detection of the skin formation quality of the chest of an automobile crash dummy by a detection tool;
FIG. 9 is a flow chart of a method for detecting the quality of skin formation on the chest of an automobile crash dummy;
FIG. 10 is a chest skin region segmentation map;
FIG. 11 is a schematic structural view of a device for detecting the shaping quality of the skin of the chest of a collision dummy according to the present invention;
fig. 12 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
Exemplary embodiments of the present application will now be described with reference to the accompanying drawings, in which various details of the embodiments of the present application are included to facilitate understanding, and are to be considered merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Example 1
As shown in fig. 1 to 8, the present embodiment provides a detection tool for skin formation quality of a breast of an automobile crash dummy, comprising:
a rotary platform and lifting slide rail integrated base 01, a lifting slide rail bracket 02, an annular slide rail 03, a fan-shaped embedded slide rail 04, a scanning detector base 05, a pitching joint 06, a scanning detection probe 07 and a skin lifting bracket 08 which are arranged on the lifting slide rail integrated base 01;
The lifting slide rail bracket 02, the annular slide rail 03, the fan-shaped embedded slide rail 04, the scanning detector base 05, the pitching joint 06 and the scanning detection probe 07 are sequentially connected; the scanning detector base 05 and the pitching joint 06 are used for driving the scanning detection probe 07 to move so as to realize scanning of the chest skin to be detected;
The skin lifting bracket 08 is arranged on the lifting sliding rail bracket 02 and is used for lifting and fixing the chest skin to be tested.
Further, as shown in fig. 2, the base 01 with integrated rotary platform and lifting slide rail comprises a rotary platform 01-1, a rotary base 01-2 and a lifting track 01-3, wherein the rotary platform 01-1 is arranged on the rotary base 01-2, and the rotary base 01-2 is connected with the lifting track 01-3.
Further, as shown in fig. 3, the lifting slide rail support 02 includes a first lifting motor 02-1 and an annular slide rail support 02-2 which are connected with each other, the number of the first lifting motor 02-1 and the number of the annular slide rail supports 02-2 are four, and the first lifting motor 02-1 is used for driving the lifting slide rail support 02 to move up and down. The lifting slide rail bracket 02 moves up and down along the lifting rail 01-3 under the drive of the first lifting motor 02-1, and the annular slide rail 03, the scanning detector base 05, the fan-shaped embedded slide rail 04 and the scanning detection probe 07 which are connected with the lifting slide rail bracket through bolts move up and down along with the lifting slide rail bracket, so that the instrument has axial freedom degree, and the aim is to enable the skin to be completely scanned and detected axially.
As shown in fig. 4, which is an assembly schematic diagram of the annular slide rail 03 and the fan-shaped embedded slide rail 04, the fan-shaped embedded slide rail 04 can move along the annular slide rail 03 under the driving.
Further, as shown in fig. 5, the scanning detector base 05 includes a first base member 05-1, a second base member 05-2, and a fan-shaped slide rail driving motor 05-3, which are sequentially connected, and is used for driving the scanning detector probe 07 to perform an annular motion.
The scanning detector base 05 is fixedly connected with the fan-shaped embedded slide rail 04 and is driven by the fan-shaped slide rail driving motor 05-3 to move along the annular slide rail 03, so that the scanning detector base 07 is driven to completely scan the skin in the circumferential direction.
Further, as shown in fig. 6, the pitch joint 06 is driven by a joint motor 06-1, and the pitch joint 06 is used to adjust the pitch angle of the scanning probe 07.
The pitching joint 06 is driven by the joint motor 06-1 to enable the scanning detection probe 07 to perform up-down swing arm action, and the pitching joint and the telescopic function of the scanning detection probe together complete the detailed and complete detection of the convex, concave and other curved surfaces of the skin.
Preferably, the skin lifting bracket 08 is extendable. Further, as shown in fig. 7, the skin lifting bracket 08 includes a second lifting motor 08-1, a first extension motor 08-2, and a second extension motor 08-3, where the second lifting motor 08-1 is used to control the whole chest to be tested to move up and down, the first extension motor 08-2 is used to drive the shoulder of the chest to be tested to move left and right, and the second extension motor 08-3 is used to drive the chest and back of the chest to be tested to move back and forth.
Preferably, the scanning probe 07 is telescopic. Further, the scanning probe 07 is composed of an ultrasonic excitation probe with a telescopic table and a group of four three-dimensional laser scanning probes, so as to complete three-dimensional scanning, area division, path planning and ultrasonic detection of the skin.
Fig. 8 shows an overall effect diagram, and the chest skin to be detected is placed on the rotary table during detection.
The detection tool for the skin forming quality of the automobile collision dummy chest provided by the embodiment adopts an integrated base of a rotary platform and a lifting slide rail, a lifting slide rail support, an annular slide rail, a fan-shaped embedded slide rail, a scanning detector base, a pitching joint, a scanning detection probe and a skin lifting bracket, the scanning detector base and the pitching joint are used for driving the scanning detection probe to move so as to realize scanning of the chest skin to be detected, lifting and fixing of the chest skin to be detected are realized through the skin lifting bracket, further detection of the thickness of the chest skin to be detected is realized, the detection tool is assembled by a plurality of modules, effective cooperation of the modules is guaranteed, multi-degree-of-freedom omnidirectional scanning detection of the skin is carried out, the detection tool does not damage the dummy chest skin, the detection process is objective and reliable, and the skin forming quality of the dummy chest can be quantized, reliable and low-cost detection is realized.
Example 2
Fig. 9 is a flowchart of a method for detecting skin forming quality of a chest of an automobile crash dummy according to the present embodiment, where the method may be performed by a device for detecting skin forming quality of a chest of an automobile crash dummy, and the device may be composed of software and/or hardware and is generally integrated in an electronic device, and the electronic device may be a computer or other mobile terminal (such as a smart phone, a tablet computer, etc.), and for convenience of understanding, each step in the control method of the present embodiment uses the computer as an execution subject.
As shown in fig. 9, the present embodiment provides a method for detecting the molding quality of the chest skin of an automobile crash dummy, which uses the detection tool in embodiment 1 to detect the chest skin to be detected, and includes the following steps:
S110, acquiring detection data of the chest skin to be detected in each detection area; the detection data are thickness-travel data, the thickness is the thickness of each detection point of the chest skin to be detected, and the travel is the travel of the scanning detection probe according to the scanning path in the detection process.
As shown in fig. 10, the detection area includes: the chest protector comprises an area A, an area B, an area C and an area D, wherein the area A is a pendulum collision area, the area B is an airbag buffer collision area, the area C is a safety belt reaction pressure area, and the area D is an area, except the area A, the area B and the area C, of the chest protector to be detected. The above areas are divided based on a pendulum impact area under a calibration working condition, an airbag buffer impact area under a real vehicle impact working condition and a safety belt reaction pressure area, and are closer to the actual working condition. The area A is a circle taking the midpoint of the connecting line of the two breasts as the center of a circle and the contour of the pendulum bob as the diameter; the area B is a statistical area for recording the contact between the safety airbag and the chest through the collision of the real vehicle, and is approximately set to be a circle with the diameter of 300 mm; the region C is a strip region set by taking the average value 45 mm of the standard seat belt 40 to 50 mm bandwidth ranges.
Further, the detection path of each detection area of the chest skin to be detected comprises: the area A is a spiral detection path, and gradually expands to the outer layer by taking the central point of the area A as a starting point; the area B is a ripple detection path, the boundary of the area A is used as a starting point to detect according to a circular path, and the radius step length is used as 5mm to gradually increase; the C area is a linear detection path, and the detection is carried out from the shoulder to the waist according to a straight line perpendicular to the boundary of the C area; the zone D comprises two parts of the front surface and the back surface of the chest skin, the back surface is a fork-shaped detection path, and the front surface is a meter-shaped detection path.
In this embodiment, the detection path is designed according to the collision mode and the area of action. The area A is a core collision area under the calibration or collision working conditions, and has direct influence on the reliability of collision response. Therefore, in order to avoid great variability in chest response and ensure reliability of results, the region requires high molding quality, so detailed and accurate uniformity detection is required. Therefore, for the detection path of which the area A is designed to be spiral, the probe starts from the center point and gradually expands towards the outer layer densely. The weight of the area B is inferior to that of the area A, and the area B is in a circular ring shape, so that the area B is designed into a ripple detection path, the area A boundary is used as a starting point to detect according to the circular path, and the area A boundary is used as a radius step length to gradually increase. The C area is long, so that the probe is a linear detection path, and the probe detects from the shoulder to the waist according to a straight line perpendicular to the boundary of the C area. The area D comprises a front part and a back part of the chest skin, and the back part does not relate to the frontal collision working condition, so that a fork-shaped path is taken for detection; the front surface adopts a meter-shaped detection path. The repeated detection of the overlapping area does not interfere with the detection result.
After the chest skin to be tested is fixed on the detection tool of the embodiment 1, the detection tool performs region division and path planning on the chest skin in the above manner. It should be understood that the specific conditions of the detection areas and the detection paths corresponding to the chest skin of the dummy of different models are different, but the shapes of the areas and the paths are the same, and only the size of the areas and the path travel are scaled. And when the three-dimensional scanning is finished, determining the area division, the area and the path planning and the journey. Thus, the position of the probe on the chest skin can be determined by the stroke, which facilitates subsequent determination of the relevant defect location.
And S120, judging whether the chest cortex quantity to be detected is qualified or not according to the detection data and the standard channel.
Further, the standard channel is obtained by the following way:
Detecting a plurality of groups of chest skins with qualified molding quality in a calibration test, and calculating standard data;
Setting standard factors of all detection areas according to the detection areas;
and determining the standard channel according to the standard data and the standard factor.
According to the structural analysis of collision response, the influence degree of each detection area on the response is different, and the weight is as follows in turn. Therefore, the requirements for molding quality are that A is higher than B and C is higher than D, so that the chest skin detection area is tested、、、Respectively endowing standard factors. Wherein,(The same applies below), and。
Multiple groups of chest skins with excellent performance in collision and calibration experiments are selected for multiple forming quality detection. The detection paths are applied to each area to obtain a plurality of qualified waveform curves, then numerical average statistics is carried out on the same-line curves in the same area, and each standard curve is obtainedThe standard curve is a thickness-travel curve (mm-mm), usingAnd (3) representing. The standard channels for each region were then obtained using the standard factor by the following formula:
The standard channel is taken as follows:
the standard channel is a curve section obtained by standard curve through standard factors under each weight, the shape is a waveform band, and the bandwidths are in turn 。
Further, the step of judging whether the thickness of the chest skin to be detected is qualified according to the detection data and the standard channel comprises the following steps:
If the detection data are in the standard channel, judging that the chest cortex quantity to be detected is qualified;
If the detection data are not in the standard channel, calculating whether the travel index and the limit index are smaller than a preset threshold value, and if so, judging that the chest cortex quantity to be detected is qualified; if not, judging that the quality of the chest skin to be detected is unqualified;
The travel index is used for representing the proportion of a defect travel interval to the total travel, the defect travel interval is a part exceeding the standard channel in the total travel, and the total travel is the total travel of the detection probe; the limit index is used for representing deviation between exceeding data and standard data, wherein the exceeding data is data which is not in the standard channel, and the standard data is the average value of detection data of a plurality of groups of qualified chest skins.
It will be appreciated that the travel index corresponds to one preset threshold, and the limit index corresponds to another preset threshold, which may be the same or different.
Specifically, assume that the curve to be measured is（) If (if)All in standard channels of each zoneAnd if the chest skin is in the inner condition, the chest skin is qualified. If an excess portion (higher or lower) occurs（) Taking the actual effect and economic benefit into consideration, the subsequent detection calculation is performed.
The detection calculation is as follows:
After a large number of experiments and calculations, the invention provides two uniformity defect evaluation indexes which are respectively stroke indexes and limit indexes, wherein the preset threshold values of the two indexes are all percentage values smaller than 1, so that the follow-up detection work is facilitated. And sets the travel weight factor Quality weight factorAnd (2) and，。
The evaluation formula of the travel index phi q is as follows:
; wherein, is a main body And the defective travel interval is the defective travel interval.
When the phi q is smaller than the preset threshold, the defect travel interval can be accepted, the collision response is extremely small, almost no consideration is given, and the chest skin travel index is qualified, otherwise, the chest skin travel index is unqualified.
The evaluation formula of the limit index qq is:
; wherein, D i out is the thickness of the defect point in the defect run interval, which is the number of measurement points in the total run.
The limit index is used for representing deviation between the exceeding data and the standard data, and the larger the deviation is, the more obvious the defect is and the larger the influence is. And when the omega q is smaller than a preset threshold value, the chest skin limit index is qualified, and otherwise, the chest skin limit index is unqualified.
If the stroke index and the limit index of the chest skin to be detected are both qualified, the molding quality of the chest skin is qualified, otherwise, the chest skin is unqualified.
In addition, the detection result is fed back to the defect of the forming die according to the unqualified position, so that subsequent correction is facilitated, and improvement of the processing technology is guided. For example, for portions that exceed acceptable channels, it may be due to the actual manufacturing dimensions of the mold exceeding the limit deviation; it is also possible that air bubbles are created, creating cavities in the chest skin, which may be caused by the lack of mold vent locations, or by the sequence of the infusion process.
The detection method for the skin forming quality of the chest of the automobile collision dummy provided by the embodiment is carried out by adopting the detection device, and has at least the same advantages as the device. In addition, the method also sets a specific detection area, designs different detection paths according to different detection areas, fully considers the collision action mode and the action area, and improves the reliability of the detection result. Furthermore, the method is also provided with a standard channel, when the detection data are in the standard channel, the quality of the chest cortex to be detected is judged to be qualified, and when the detection data are not in the standard channel, the stroke index and the limit index are further combined to judge whether the quality of the chest cortex to be detected is qualified.
The tool and the detection method are not only suitable for detecting the chest skin of a dummy, but also suitable for detecting the chest skin of different types of dummy such as Hybrid-III, thor and the like, and different areas of the chest have different evaluation standards.
Example 3
As shown in fig. 11, the present embodiment provides a detection apparatus for collision dummy chest skin shaping quality, comprising:
An acquisition module 201, configured to acquire detection data of the chest skin to be detected in each detection area; the detection data are thickness-travel data, the thickness is the thickness of each detection point of the chest skin to be detected, and the travel is the travel of the scanning detection probe according to a scanning path in the detection process;
And the judging module 202 is used for judging whether the chest cortex quantity to be detected is qualified or not according to the detection data and the standard channel.
The device is used for executing the method, and therefore has at least the functional module and the beneficial effects corresponding to the method.
Example 4
As shown in fig. 12, the present embodiment provides an electronic device including:
at least one processor; and
A memory communicatively coupled to at least one of the processors; wherein,
The memory stores instructions executable by at least one of the processors to enable the at least one processor to perform the method described above. At least one processor in the electronic device is capable of performing the above-described method and thus has at least the same advantages as the above-described method.
Optionally, the electronic device further includes an interface for connecting the components, including a high-speed interface and a low-speed interface. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions executing within the electronic device, including instructions stored in or on memory to display graphical information of a GUI (GRAPHICAL USER INTERFACE ) on an external input/output device, such as a display device coupled to the interface. In other embodiments, multiple processors may be used with multiple memories, and/or multiple buses may be used with multiple memories, if desired. Also, multiple electronic devices (e.g., as a server array, a set of blade servers, or a multi-processor system) may be connected, with each device providing some of the necessary operations. One processor 301 is illustrated in fig. 12.
The memory 302 is used as a computer readable storage medium, and can be used to store a software program, a computer executable program, and a module, such as program instructions/modules corresponding to the method for detecting the skin formation quality of the chest of the car crash dummy in the embodiment of the invention. The processor 301 executes various functional applications of the apparatus and data processing by running software programs, instructions and modules stored in the memory 302, i.e. the detection method of the skin formation quality of the chest of the car crash dummy is implemented as described above.
Memory 302 may include primarily a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application program required for functionality; the storage data area may store data created according to the use of the terminal, etc. In addition, memory 302 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 302 may further include memory located remotely from processor 301, which may be connected to the device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The electronic device may further include: an input device 303 and an output device 304. The processor 301, memory 302, input device 303, and output device 304 may be connected by a bus or other means, for example in fig. 12.
The input means 303 may receive input digital or character information, and the output means 304 may include a display device, an auxiliary lighting means (e.g., LED), a tactile feedback means (e.g., vibration motor), and the like. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device may be a touch screen.
Example 5
The present embodiment provides a computer-readable storage medium having stored thereon computer instructions for causing the computer to perform the above-described method. The computer instructions on the computer-readable storage medium are for causing a computer to perform the above method and thus have at least the same advantages as the above method.
Any combination of one or more computer readable media may be employed in the present invention. The medium may be a computer readable signal medium or a computer readable storage medium. The medium can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the medium include: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF (Radio Frequency) and the like, or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution disclosed in the present application can be achieved, and are not limited herein.
The above embodiments do not limit the scope of the present application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of the present application.
Claims (9)
1. A tool for detecting the skin shaping quality of a breast of an automobile collision dummy, comprising:
The device comprises a rotary platform and lifting slide rail integrated base (01), and a lifting slide rail bracket (02), an annular slide rail (03), a fan-shaped embedded slide rail (04), a scanning detector base (05), a pitching joint (06), a scanning detection probe (07) and a skin lifting bracket (08) which are arranged on the lifting slide rail integrated base (01);
the lifting slide rail bracket (02), the annular slide rail (03), the fan-shaped embedded slide rail (04), the scanning detector base (05), the pitching joint (06) and the scanning detection probe (07) are sequentially connected; the scanning detector base (05) and the pitching joint (06) are used for driving the scanning detection probe (07) to move so as to realize scanning of the chest skin to be detected;
The skin lifting bracket (08) is arranged on the lifting sliding rail bracket (02) and is used for lifting and fixing the chest skin to be tested.
2. The detection tool for the skin forming quality of the chest of the automobile crash dummy according to claim 1, wherein the rotary platform and lifting slide rail integrated base (01) comprises a rotary platform (01-1), a rotary base (01-2) and a lifting rail (01-3), the rotary platform (01-1) is arranged on the rotary base (01-2), and the rotary base (01-2) is connected with the lifting rail (01-3).
3. The detection tool for the skin forming quality of the chest of the automobile crash dummy according to claim 1, wherein the lifting slide rail bracket (02) comprises a first lifting motor (02-1) and an annular slide rail bracket (02-2) which are connected with each other, the number of the first lifting motor (02-1) and the number of the annular slide rail bracket (02-2) are four, and the first lifting motor (02-1) is used for driving the lifting slide rail bracket (02) to move up and down.
4. The detection tool for the skin forming quality of the chest of the automobile crash dummy according to claim 1, wherein the scanning detector base (05) comprises a first base part (05-1), a second base part (05-2) and a fan-shaped slide rail driving motor (05-3) which are connected in sequence, and the scanning detector base is used for driving the scanning detection probe (07) to perform annular movement;
The pitching joint (06) is driven by a joint motor (06-1), and the pitching joint (06) is used for adjusting the pitching angle of the scanning detection probe (07).
5. The detection tool for the skin forming quality of the chest of the automobile crash dummy according to claim 1, wherein the skin lifting bracket (08) comprises a second lifting motor (08-1), a first extension motor (08-2) and a second extension motor (08-3), the second lifting motor (08-1) is used for controlling the chest to be detected to move up and down integrally, the first extension motor (08-2) is used for driving the shoulder of the chest to be detected to move left and right, and the second extension motor (08-3) is used for driving the chest and back of the chest to be detected to move back and forth.
6. A method for detecting the skin formation quality of a breast of an automobile crash dummy, characterized in that the detection is carried out by using the detection tool according to any one of claims 1 to 5, the method comprising:
Acquiring detection data of the chest skin to be detected in each detection area; the detection data are thickness-travel data, the thickness is the thickness of each detection point of the chest skin to be detected, and the travel is the travel of the scanning detection probe according to a scanning path in the detection process;
judging whether the chest cortex quantity to be detected is qualified or not according to the detection data and the standard channel;
The standard channel is obtained by adopting the following modes:
Detecting a plurality of groups of chest skins with qualified molding quality in a calibration test, and calculating standard data;
Setting standard factors of all detection areas according to the detection areas;
and determining the standard channel according to the standard data and the standard factor.
7. The method of detecting according to claim 6, wherein the detection region includes: the chest protector comprises an area A, an area B, an area C and an area D, wherein the area A is a pendulum collision area, the area B is an airbag buffer collision area, the area C is a safety belt reaction pressure area, and the area D is an area, except the area A, the area B and the area C, of the chest protector to be detected.
8. The method according to claim 7, wherein the detection path of each detection area of the chest skin to be detected comprises: the area A is a spiral detection path, and gradually expands to the outer layer by taking the central point of the area A as a starting point; the area B is a ripple detection path, the boundary of the area A is used as a starting point to detect according to a circular path, and the radius step length is used as 5mm to gradually increase; the C area is a linear detection path, and the detection is carried out from the shoulder to the waist according to a straight line perpendicular to the boundary of the C area; the zone D comprises two parts of the front surface and the back surface of the chest skin, the back surface is a fork-shaped detection path, and the front surface is a meter-shaped detection path.
9. The method according to claim 6, wherein the step of determining whether the thickness of the chest skin to be measured is acceptable according to the detection data and the standard channel comprises:
If the detection data are in the standard channel, judging that the chest cortex quantity to be detected is qualified;
If the detection data are not in the standard channel, calculating whether the travel index and the limit index are smaller than a preset threshold value, and if so, judging that the chest cortex quantity to be detected is qualified; if not, judging that the quality of the chest skin to be detected is unqualified;
The travel index is used for representing the proportion of a defect travel interval to the total travel, the defect travel interval is a part exceeding the standard channel in the total travel, and the total travel is the total travel of the detection probe; the limit index is used for representing deviation between exceeding data and standard data, wherein the exceeding data is data which is not in the standard channel, and the standard data is the average value of detection data of a plurality of groups of qualified chest skins.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107131988A (en) * | 2017-05-18 | 2017-09-05 | 湖南大学 | A kind of crash dummy chest pressure Distribution Test system and method for testing |
| CN115165388A (en) * | 2022-06-22 | 2022-10-11 | 中汽研汽车检验中心（天津）有限公司 | Crash dummy chest skin calibration device, calibration method and storage medium |
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| JP6020500B2 (en) * | 2014-03-25 | 2016-11-02 | 株式会社豊田中央研究所 | Deformation analyzer |
| US10229616B2 (en) * | 2015-08-31 | 2019-03-12 | Humanetics Innovative Solutions, Inc. | Method for creating customized chest response finite element model for anthropomorphic test devices involving creating finite element model for crash test dummy |
| CN115218811B (en) * | 2022-09-19 | 2023-01-06 | 中汽研汽车检验中心（天津）有限公司 | Dummy rib deformation measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131988A (en) * | 2017-05-18 | 2017-09-05 | 湖南大学 | A kind of crash dummy chest pressure Distribution Test system and method for testing |
| CN115165388A (en) * | 2022-06-22 | 2022-10-11 | 中汽研汽车检验中心（天津）有限公司 | Crash dummy chest skin calibration device, calibration method and storage medium |
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