A pedestrian protection leg type test method, device, terminal and storage medium

Abstract

The present invention relates to a pedestrian protection leg type test method, device, terminal and storage medium. It includes: First, monitoring the height between the lower end of the leg type impactor and the ground reference line; Second, monitoring the inclination angles of the leg type impactor in the X, Y, and Z directions; Third, after the leg type simulation impactor is launched from the equipment launching end, collecting the height between the lower end of the leg type impactor and the ground reference line measured after a set time and the inclination angles of the leg type impactor in the X, Y, and Z directions, and transmitting the signals back to the signal receiving end; Fourth, the signal receiving end integrates with the control end according to the received height between the lower end of the leg type impactor and the ground reference line and the inclination angles of the leg type impactor in the X, Y, and Z directions; The controller executes corresponding operations according to the judgment. The present invention can prevent problems before they occur, trigger recovery through sensing detection to avoid invalid tests, thereby reducing the replacement of test specimens, saving test costs, improving test efficiency, and shortening the development cycle.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobiles, and specifically relates to a pedestrian protection leg type test method, device, terminal and storage medium. Background Art

[0002] The pedestrian protection leg type impact test belongs to the pedestrian protection test project and is an important part of the vehicle safety performance test. The main test objects of this test are the leg type simulation impactor, the vehicle front bumper, the vehicle grille, the vehicle headlight, the vehicle fender, etc. During the test, the equipment launches the leg type impactor module to impact the front end of the vehicle, and the injury value is measured by the sensors inside the leg type. The impactor modules used in the existing pedestrian protection leg type impact tests mainly include two types: Flex-Pli leg type and A-Pli leg type. Among them, the Flex-Pli leg type requires a height of 75 mm from the ground reference line at the first contact moment, and the A-Pli leg type requires a height of 25 mm from the ground reference line at the first contact moment, with an error of ±10 mm for both. The angular error requirements for both impactor modules in the lateral plane and the longitudinal plane are ±2°. Since the leg type impactor module does not have the ability to monitor in real time during the entire flight process after being launched by the equipment, invalid tests often occur.

[0003] In the prior art,

[0004] 1. After each test, the height of the lower end of the leg type impactor module from the ground reference line and the deflection angle are measured from the high-speed video playback, and the impactor cannot be controlled during the test.

[0005] 2. During the test, when the leg type collides fully with the vehicle and then has no restraint, the leg type contacts the rigid object on the ground and causes a secondary collision.

[0006] 3. A gantry structure, a pulley mechanism, a pneumatic mechanism, a pull rope and other mechanisms are adopted, and the trigger extension time is set in advance in the equipment software. When the leg type impactor module contacts the vehicle fully, the pneumatic pressure is used to drive the pull rope to drag back the leg type impactor. It does not have the ability to monitor the state of the impactor in real time. Summary of the Invention

[0007] The present invention provides a pedestrian protection leg type test method, device, terminal and storage medium, which can monitor the height from the ground and the angular deviation in each direction of the leg type before the first contact moment with the vehicle when the leg type simulation impactor flies out. When the height and the angular deviation exceed the allowable range, the leg type impactor is captured and retracted, and the test is aborted, solving the above problems existing in the existing pedestrian protection leg type impact test.

[0008] The technical solution of the present invention is described in conjunction with the accompanying drawings as follows:

[0009] According to the first aspect of the embodiments of the present invention, a pedestrian protection leg type test method is provided, including the following steps:

[0010] Step 1: Install a ranging sensor at the bottom of the leg type simulation impactor, and in the test, real-time monitor the height between the lower end of the leg type impactor and the ground reference line;

[0011] Step 2: Install an inclination sensor at the rear side of the middle part of the leg type simulation impactor, and in the test, real-time monitor the inclination angles of the leg type impactor in the X, Y, and Z directions;

[0012] Step 3: After the leg type simulation impactor is launched by the equipment launching end, the ranging sensor and the inclination sensor collect the height between the lower end of the measured leg type impactor and the ground reference line and the inclination angles of the measured leg type impactor in the X, Y, and Z directions after a set time; after collection, the height between the lower end of the leg type impactor and the ground reference line and the inclination angles of the leg type impactor in the X, Y, and Z directions are transmitted back to the signal receiving end;

[0013] Step 4: The signal receiving end is integrated with the control end according to the received height between the lower end of the leg type impactor and the ground reference line and the inclination angles of the leg type impactor in the X, Y, and Z directions; the controller first judges whether the height between the lower end of the leg type impactor and the ground reference line is within the allowable error range of the leg type impactor; if the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg type impactor, then judge whether the inclination angles of the leg type impactor in the X, Y, and Z directions are within the allowable error range of the leg type impactor. If they are within the allowable error range of the leg type impactor, continue the test, link the leg recovery mechanism with the equipment end, and recover the leg type impactor when it does not contact the vehicle; if the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg type impactor, the received height between the lower end of the leg type impactor and the ground reference line and the inclination angles of the leg type impactor in the X, Y, and Z directions are transmitted back to the control end, and the control end triggers the tensioning mechanism to retract the leg type impactor and abort the test.

[0014] Further, the ranging sensor described in Step 1 uses a micro TOF sensor.

[0015] Further, the inclination sensor described in Step 2 uses a three-dimensional gyroscope micro angle sensor.

[0016] Further, the flight distance of the leg type simulation impactor after a set time in Step 3 is 1200 mm.

[0017] Further, the control end sets a delay before the test, and sets different delay times, ground clearance heights, and angle requirements for leg type impactor modules of different sizes and masses.

[0018] Further, the allowable error range of the height of the leg impactor described in step four is specifically as follows: the Flex-Pli leg type range is 75 ± 10 mm; the A-PLI leg type range is 25 ± 10 mm.

[0019] Further, the allowable error range of the angle of the leg impactor described in step four is specifically as follows: the ranges of both the Flex-Pli leg type and the A-PLI leg type are ±2°.

[0020] According to the second aspect of the embodiments of the present invention, a pedestrian protection leg type test device is provided, including:

[0021] A first monitoring module for real-time monitoring of the height between the lower end of the leg impactor and the ground reference line during the test;

[0022] A second monitoring module for real-time monitoring of the inclination angles of the leg impactor in the X, Y, and Z directions during the test;

[0023] An acquisition module for, after the leg type simulation impactor is pushed out by the device emission end, the ranging sensor and the inclination angle sensor to acquire the height between the lower end of the measured leg impactor and the ground reference line and the inclination angles of the measured leg impactor in the X, Y, and Z directions after a set time; after acquisition, transmit the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions to the signal receiving end;

[0024] A judgment execution module for the signal receiving end to be integrated with the control end according to the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions; the controller first judges whether the height between the lower end of the leg impactor and the ground reference line is within the allowable error range of the leg impactor; if the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg impactor, then judge whether the inclination angles of the leg impactor in the X, Y, and Z directions are within the allowable error range of the leg impactor. If they are within the allowable error range of the leg impactor, continue the test, link the leg recovery mechanism with the device end, and recover the leg impactor when it is not in contact with the vehicle; if the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg impactor, transmit the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions to the control end, and the control end triggers the tensioning mechanism to retract the leg impactor and abort the test.

[0025] According to the third aspect of the embodiments of the present invention, a terminal is provided, including:

[0026] One or more processors;

[0027] A memory for storing executable instructions of the one or more processors;

[0028] Wherein, the one or more processors are configured to:

[0029] Execute the method described in the first aspect of the embodiment of the present invention.

[0030] According to the fourth aspect of the embodiment of the present invention, a non-transitory computer-readable storage medium is provided. When the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the method described in the first aspect of the embodiment of the present invention.

[0031] According to the fifth aspect of the embodiment of the present invention, an application program product is provided. When the application program product runs on a terminal, the terminal is enabled to execute the method described in the first aspect of the embodiment of the present invention.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1) The present invention can monitor the ground clearance height of the leg form and the angular deviation in each direction before the first contact moment with the vehicle when the leg form simulation impactor flies out. When the height and angular deviation exceed the allowable range, the leg form impactor is captured and retracted, and the test is aborted;

[0034] 2) The present invention can prevent problems before they occur. By triggering the recovery through sensing detection, invalid tests are avoided, thereby reducing the replacement of test samples, saving test costs, improving test efficiency, and shortening the development cycle. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a flowchart of a pedestrian protection leg form test method according to the present invention;

[0037] Figure 2 It is a schematic diagram of the ground clearance height requirement before the contact moment between the leg form impactor and the vehicle;

[0038] Figure 3 It is a schematic diagram of the inclination angle requirements in each direction before the contact moment between the leg form impactor and the vehicle;

[0039] Figure 4 It is a schematic diagram of the sensor position;

[0040] Figure 5 It is a schematic structural diagram of a pedestrian protection leg form test device according to the present invention;

[0041] Figure 6 It is a schematic block diagram of a terminal structure.

[0042] In the figure: 1. Distance measuring sensor; 2. Inclination sensor. Specific implementation manners

[0043] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0044] Embodiment 1

[0045] Figure 1 It is a flowchart of a pedestrian protection leg form test method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of pedestrian protection leg form tests. This method can be executed by a pedestrian protection leg form test device in the embodiments of the present invention, and the device can be implemented in software and / or hardware manners.

[0046] Refer to Figure 1 , a pedestrian protection leg form test method, including the following steps:

[0047] Refer to Figure 2 and Figure 4 , Step 1: Install a distance measuring sensor 1 at the bottom of the leg form simulation impactor, and in the test, monitor the height between the lower end of the leg form impactor and the ground reference line in real time;

[0048] Among them, the distance measuring sensor uses a micro TOF sensor. Existing distance measuring sensors calculate the distance to an object by emitting an energy beam that is reflected by the object being measured and calculating the time it takes for the beam to be emitted and reflected back. Common energy beams include ultrasonic waves, lasers, infrared waves, radar, etc. The present invention uses a micro TOF (Time Of Flight) distance measuring sensor, which emits infrared light through an LED and detects the distance by receiving the reflected infrared light, with an accuracy of 1 cm. The distance measuring sensor is fixed on the lower surface of the leg form impactor, and the allowable height error in the system needs to subtract the sensor thickness.

[0049] Refer to Figure 3 and Figure 4 , Step 2: Install an inclination sensor 2 at the rear side of the middle part of the leg form simulation impactor, and in the test, monitor the inclination of the leg form impactor in the X, Y, and Z directions in real time;

[0050] Among them, the inclination sensor uses a three-dimensional gyroscope micro angle sensor and adopts the Kalman filter data fusion algorithm, which can obtain the changes in angles in three directions with an accuracy of 0.01°. The inclination sensor is fixed at the rear side of the leg impactor, and the volume and weight of the sensor are negligible.

[0051] Step 3: After the leg impactor simulator is launched by the equipment launching end, the ranging sensor and the inclination sensor collect the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions measured after a set time; after collection, the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are transmitted back to the signal receiving end.

[0052] Among them, the flight distance of the leg impactor simulator after a set time is 1200 mm.

[0053] Step 4: The signal receiving end is integrated with the control end according to the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions; the controller first judges whether the height between the lower end of the leg impactor and the ground reference line is within the allowable error range of the leg impactor; if the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg impactor, then it judges whether the inclination angles of the leg impactor in the X, Y, and Z directions are within the allowable error range of the leg impactor. If they are within the allowable error range of the leg impactor, the test continues, and the leg recovery mechanism is linked with the equipment end to recover the leg impactor when it does not contact the vehicle; if the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg impactor, the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are transmitted back to the control end, and the control end triggers the tensioning mechanism to retract the leg impactor and abort the test.

[0054] The control end sets a delay before the test, and sets different delay times, ground clearance heights, and angle requirements for leg impactor modules of different sizes and masses.

[0055] When the flight distance of the leg impactor is 1200 mm, distance judgment is first carried out. The control end integration judges whether the height of the bottom end of the leg impactor from the ground at this time meets the allowable range of the set value in the system through the signal obtained by the ranging sensor. The Flex-Pli leg range is 75 ± 10 mm, and the A-PLI leg range is 25 ± 10 mm. If it meets the requirements, the next judgment is carried out.

[0056] If it is monitored that the signal obtained by the ranging sensor does not meet the set value in the system, the control end integration will transmit the signal to trigger the leg recovery mechanism to retract the leg impactor before it touches the front end of the vehicle, achieving the purpose of aborting the test.

[0057] If the control terminal determines through the signal transmitted back by the tilt sensor that the angular deviations of the leg impactor in the X, Y, and Z directions are all within the allowable range of the set value, and the Flex-Pli leg type and A-PLI leg type ranges are both ±2°, the control terminal will not process it and will continue the test. The leg retraction mechanism will retract the leg after the leg impactor makes full contact with the front end of the vehicle.

[0058] When it is detected that the signal obtained by the tilt sensor does not meet the set value in the system, the control terminal will immediately transmit the signal to trigger the leg retraction mechanism to retract the leg impactor before it contacts the front end of the vehicle.

[0059] The method provided in this embodiment can prevent problems before they occur. By triggering the recovery through sensing detection, it can avoid invalid tests, thereby reducing the replacement of test samples, saving test costs, improving test efficiency, and shortening the development cycle.

[0060] Embodiment 2

[0061] Refer to Figure 5 , a pedestrian protection leg type test device, including:

[0062] A first monitoring module for real-time monitoring of the height between the lower end of the leg impactor and the ground reference line during the test;

[0063] A second monitoring module for real-time monitoring of the inclination angles of the leg impactor in the X, Y, and Z directions during the test;

[0064] An acquisition module for, after the leg simulation impactor is launched from the device transmitter, the ranging sensor and the tilt sensor to acquire the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions measured after a set time; after acquisition, transmit the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions back to the signal receiving end;

[0065] A judgment execution module is used to integrate the signal receiving end with the control end after the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are received. The controller first determines whether the height between the lower end of the leg impactor and the ground reference line is within the allowable error range of the leg impactor. If the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg impactor, it further determines whether the inclination angles of the leg impactor in the X, Y, and Z directions are within the allowable error range of the leg impactor. If they are within the allowable error range of the leg impactor, the test continues, and the leg retraction mechanism is linked with the equipment end to retract the leg impactor when it is not in contact with the vehicle. If the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg impactor, the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are transmitted back to the control end, and the control end triggers the tensioning mechanism to retract the leg impactor and abort the test.

[0066] Embodiment III

[0067] Figure 6 It is a structural block diagram of a terminal provided by an embodiment of the present application. The terminal can be the terminal in the above embodiment. The terminal 300 can be a portable mobile terminal, such as a smart phone or a tablet computer. The terminal 300 may also be referred to by other names such as user equipment or portable terminal.

[0068] Generally, the terminal 300 includes a processor 301 and a memory 302.

[0069] The processor 301 may include one or more processing cores, such as a quad-core processor, an octa-core processor, etc. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor. The main processor is a processor used to process data in the wake state, also known as the CPU (Central Processing Unit); the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 301 may further include an AI (Artificial Intelligence) processor, and the AI processor is used to process computational operations related to machine learning.

[0070] The memory 302 may include one or more computer-readable storage media, and the computer-readable storage media may be tangible and non-transitory. The memory 302 may further include high-speed random access memory and non-volatile memory, such as one or more disk storage devices and flash storage devices. In some embodiments, the non-transitory computer-readable storage media in the memory 302 is used to store at least one instruction, and the at least one instruction is used to be executed by the processor 301 to implement a pedestrian protection legform test method provided in this application.

[0071] In some embodiments, the terminal 300 may further optionally include: a peripheral device interface 303 and at least one peripheral device. Specifically, the peripheral device includes at least one of a radio frequency circuit 304, a touch display screen 305, a camera 306, an audio circuit 307, a positioning component 308, and a power supply 309.

[0072] The peripheral device interface 303 may be used to connect at least one peripheral device related to I / O (Input / Output) to the processor 301 and the memory 302. In some embodiments, the processor 301, the memory 302, and the peripheral device interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302, and the peripheral device interface 303 may be implemented on a separate chip or circuit board, and this embodiment does not limit this.

[0073] The radio frequency circuit 304 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 304 communicates with the communication network and other communication devices through electromagnetic signals. The radio frequency circuit 304 converts electrical signals into electromagnetic signals for transmission, or converts the received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 304 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, and so on. The radio frequency circuit 304 can communicate with other terminals through at least one wireless communication protocol. The wireless communication protocol includes but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G, and 5G), a wireless local area network, and / or a WiFi (Wireless Fidelity) network. In some embodiments, the radio frequency circuit 304 may further include a circuit related to NFC (Near Field Communication), which is not limited in this application.

[0074] The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, videos, and any combination thereof. The touch display screen 305 also has the ability to collect touch signals on or above the surface of the touch display screen 305. The touch signals can be input to the processor 301 as control signals for processing. The touch display screen 305 is used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard. In some embodiments, the touch display screen 305 can be one, provided on the front panel of the terminal 300; in other embodiments, the touch display screen 305 can be at least two, respectively provided on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display screen 305 can be a flexible display screen, provided on a curved surface or a folded surface of the terminal 300. Even, the touch display screen 305 can be set to an irregular non-rectangular shape, that is, a special-shaped screen. The touch display screen 305 can be prepared using materials such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode).

[0075] The camera component 306 is used to collect images or videos. Optionally, the camera component 306 includes a front camera and a rear camera. Generally, the front camera is used to implement video calls or selfies, and the rear camera is used to take photos or videos. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth camera, and a wide-angle camera, so as to implement the function of background blurring by fusing the main camera and the depth camera, and implement panoramic shooting and VR (Virtual Reality) shooting functions by fusing the main camera and the wide-angle camera. In some embodiments, the camera component 306 may further include a flash. The flash can be a single-color temperature flash or a two-color temperature flash. The two-color temperature flash refers to the combination of a warm light flash and a cold light flash, which can be used for light compensation under different color temperatures.

[0076] The audio circuit 307 is used to provide an audio interface between the user and the terminal 300. The audio circuit 307 may include a microphone and a speaker. The microphone is used to collect sound waves of the user and the environment, and convert the sound waves into electrical signals and input them to the processor 301 for processing, or input them to the radio frequency circuit 304 to achieve voice communication. For the purpose of stereo collection or noise reduction, there may be multiple microphones, which are respectively arranged at different parts of the terminal 300. The microphone can also be an array microphone or an omnidirectional collection type microphone. The speaker is used to convert the electrical signal from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker can be a traditional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for uses such as ranging. In some embodiments, the audio circuit 307 may further include a headphone jack.

[0077] The positioning component 308 is used to locate the current geographical location of the terminal 300 to achieve navigation or LBS (Location Based Service). The positioning component 308 can be a positioning component based on the US GPS (Global Positioning System), China's Beidou system, or Russia's Galileo system.

[0078] The power supply 309 is used to supply power to each component in the terminal 300. The power supply 309 can be alternating current, direct current, a disposable battery, or a rechargeable battery. When the power supply 309 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0079] Those skilled in the art can understand that Figure 6 the structure shown in Figure 6 does not constitute a limitation on the terminal 300, and it may include more or fewer components than shown in the figure, or combine some components, or adopt a different component arrangement.

[0080] Example 4

[0081] In an exemplary embodiment, a computer-readable storage medium is further provided, on which a computer program is stored, and when the program is executed by a processor, it implements a pedestrian protection leg type test method provided in all inventive embodiments of the present application.

[0082] Any combination of one or more computer-readable media can be adopted. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection having one or more wires, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, apparatus, or device.

[0083] The computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal can take various forms, including - but not limited to - an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and this computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device.

[0084] The program code contained on the computer-readable medium can be transmitted by any suitable medium, including - but not limited to - wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0085] Computer program code for performing the operations of the present invention may be written in one or more programming languages or combinations thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and also including conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0086] Embodiment Five

[0087] In an exemplary embodiment, there is also provided an application program product including one or more instructions that can be executed by the processor 301 of the above device to complete the above method for a pedestrian protection legform test.

[0088] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and their equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. A pedestrian protection leg type test method, characterized in that, It includes the following steps: Step 1: Install a ranging sensor at the bottom of the leg-shaped simulation impactor to monitor the height between the lower end of the leg-shaped impactor and the ground reference line in real time during the test; Step 2: Install an inclination sensor at the rear side of the middle part of the leg-shaped simulation impactor to monitor the inclination angles of the leg-shaped impactor in the X, Y, and Z directions in real time during the test; Step 3: After the leg-shaped simulation impactor is launched from the equipment launching end, the ranging sensor and the inclination sensor collect the height between the lower end of the leg-shaped impactor and the ground reference line measured after a set time and the inclination angles of the leg-shaped impactor in the X, Y, and Z directions measured; after collection, the height between the lower end of the leg-shaped impactor and the ground reference line and the inclination angles of the leg-shaped impactor in the X, Y, and Z directions are transmitted back to the signal receiving end; Step 4: The signal receiving end integrates with the control end according to the received height between the lower end of the leg-shaped impactor and the ground reference line and the inclination angles of the leg-shaped impactor in the X, Y, and Z directions; the controller first judges whether the height between the lower end of the leg-shaped impactor and the ground reference line is within the allowable error range of the leg-shaped impactor; if the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg-shaped impactor, then judge whether the inclination angles of the leg-shaped impactor in the X, Y, and Z directions are within the allowable error range of the leg-shaped impactor. If they are within the allowable error range of the leg-shaped impactor, continue the test, link the leg recovery mechanism with the equipment end, and recover the leg-shaped impactor when it does not contact the vehicle; if the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg-shaped impactor, transmit the received height between the lower end of the leg-shaped impactor and the ground reference line and the inclination angles of the leg-shaped impactor in the X, Y, and Z directions back to the control end, and the control end triggers the tensioning mechanism to retract the leg-shaped impactor and abort the test.

2. The pedestrian protection leg type test method according to claim 1, characterized in that The ranging sensor described in Step 1 uses a micro TOF sensor.

3. A pedestrian protection leg type test method according to claim 1, characterized in that, The inclination sensor described in Step 2 uses a three-dimensional gyroscope micro angle sensor.

4. A pedestrian protection leg type test method according to claim 1, characterized in that The flight distance of the leg-shaped simulation impactor after a set time in Step 3 is 1200 mm.

5. A pedestrian protection leg type test method according to claim 1, characterized in that, The control end sets a delay before the test in Step 4, and sets different delay times, ground clearance heights, and angle requirements for leg-shaped impactor modules of different sizes and masses.

6. A pedestrian protection leg type test method according to claim 1, characterized in that The specific allowable error range of the height of the leg-shaped impactor in Step 4 is: the Flex-Pli leg type range is 75 ± 10 mm; the A-PLI leg type range is 25 ± 10 mm.

7. A pedestrian protection leg type test method according to claim 1, characterized in that The specific allowable error range of the angle of the leg-shaped impactor in Step 4 is: both the Flex-Pli leg type and the A-PLI leg type ranges are ±2°.

8. A pedestrian protection leg type test device, characterized in that, It includes: The first monitoring module is used to monitor the height between the lower end of the leg-shaped impactor and the ground reference line in real time during the test; The second monitoring module is used to monitor the inclination angles of the leg-shaped impactor in the X, Y, and Z directions in real time during the test; The acquisition module is used to collect the height between the lower end of the leg impactor and the ground reference line measured after a set time and the inclination angles of the leg impactor in the X, Y, and Z directions by the ranging sensor and the inclination sensor after the leg impactor is launched from the device transmitting end; after the acquisition, the height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are transmitted back to the signal receiving end; The judgment and execution module is used to integrate the signal receiving end with the control end according to the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions; the controller first judges whether the height between the lower end of the leg impactor and the ground reference line is within the allowable error range of the leg impactor; if the height between the lower end of the impactor and the ground reference line is within the allowable error range of the leg impactor, then it judges whether the inclination angles of the leg impactor in the X, Y, and Z directions are within the allowable error range of the leg impactor. If they are within the allowable error range of the leg impactor, continue the test, link the leg recovery mechanism with the device end, and recover the leg impactor when it is not in contact with the vehicle; if the height between the lower end of the impactor and the ground reference line is not within the allowable error range of the leg impactor, the received height between the lower end of the leg impactor and the ground reference line and the inclination angles of the leg impactor in the X, Y, and Z directions are transmitted back to the control end, and the control end triggers the tensioning mechanism to retract the leg impactor and abort the test.

9. A terminal, characterized in that, Comprising: One or more processors; A memory for storing executable instructions of the one or more processors; Wherein, the one or more processors are configured to: Execute a pedestrian protection leg impact test method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to execute a pedestrian protection leg impact test method according to any one of claims 1 to 7.

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