WO2019185045A1 - Transport device collision detection, alarm, and guard method - Google Patents

Abstract

A transport device collision detection, alarm, and guard method, comprising: obtaining an elastic wave signal generated due to a collision of an exterior of a transport device by multiple collision sensors disposed on the transport device, and converting the elastic wave signal into a voltage signal; when an energy value of the voltage signal is greater than a predetermined threshold, obtaining collision data and a running parameter of the transport device; obtaining the collision strength, a collision trajectory, and collision time of the transport device through calculation according to the collision data; and obtaining, according to the collision strength, the collision trajectory, the collision time, and the running parameter, a pre-stored processing scheme, and controlling the transport device to execute a corresponding action according to the processing scheme. The transport device collision detection, alarm, and guard method can effectively detect collision situations of an exterior of a vehicle, and confirm the current state of the vehicle according to these collision situations to help a driver provide a more precise braking scheme and ensure the life and property safety of the driver and passengers. The present invention also relates to an electronic device and a computer-readable storage medium.

Description

Transportation equipment collision detection and early warning protection method Technical field

The present application relates to the field of transportation equipment safety, and in particular to a collision detection and early warning protection method for transportation equipment.

Background technique

In the current society, automobiles have become an important means of transportation for the masses, and their safety issues have been considered by more and more users. In the field of vehicle safety protection, in the prior art, mainly by increasing the number of cars. The thickness of the steel plate, the structure of the car body and other methods make the car more resistant to collision and improve the safety of the vehicle. At the same time, some vehicles also have a preventive protection strategy similar to infrared monitoring, which actively stops when the car and the external vehicle are about to collide. In the prior art, all of them are preventive safety protection, and these protection strategies are also passive protection strategies. When the danger occurs, there are also uncontrollable problems; in addition, the collision of the vehicle is dangerous, and the situation is often unpredictable. At this moment, in the dangerous collision process, the driver or passenger can not quickly and accurately control the protective equipment to protect his life and property safety. He can only listen to the fate of life and expect the car itself to have excellent quality or lighter collision; In the process of danger, how to reduce the loss and control the vehicle protection equipment in real time The public has not been considered.

Based on the above problems, the industry needs a protection method that can help the vehicle to cope with sudden collision time to protect the safety of drivers and passengers.

Summary of the invention

The purpose of the present application is to provide a collision detection and early warning protection method and device for a transportation device for detecting an external collision condition of a transportation device in time, and accurately confirming the current state of the transportation device according to the collision conditions to help the driver to provide a more accurate braking scheme. Safeguard the life and property of drivers and passengers.

In order to achieve the above object, a collision detection and early warning protection method for a transportation device provided by the present application specifically includes: obtaining, by a plurality of collision sensors disposed on the transportation device, an elastic wave signal generated by a collision outside the transportation device, and the elastic wave The wave signal is converted into a voltage signal; when the energy value of the voltage signal is higher than a predetermined threshold, the collision data and the operating parameter of the transportation device are obtained; and the collision force, the collision trajectory and the collision time of the transportation device are calculated according to the collision data; A pre-stored processing scheme is obtained by the collision force, the collision trajectory, the collision time, and the operating parameter, and the transportation device is controlled to perform a corresponding action according to the processing scheme.

The present application also provides an electronic device comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the method described above.

The application also provides a computer readable storage medium storing a computer program for performing the method described above.

The vehicle collision detection and early warning protection method and device provided by the application can effectively detect the external collision situation of the vehicle, and accurately confirm the current state of the vehicle according to the collision conditions, thereby helping the driver to provide a more accurate braking scheme and ensuring the driver and the passenger. Life and property security.

DRAWINGS

The drawings described herein are provided to provide a further understanding of the present application, and constitute a part of this application, and do not constitute a limitation of the application. In the drawing:

1 is a schematic flow chart of a collision detection and early warning protection method for a transportation device provided by the present application;

2 is a schematic flow chart of a collision detection and early warning protection method for a transportation device according to an embodiment of the present application;

3 is a schematic flow chart of a collision detection and early warning protection method for a transportation device according to an embodiment of the present application;

4 is a schematic structural view of a collision detection and early warning protection device for a transportation device provided by the present application;

FIG. 5 is a schematic structural diagram of a collision detection and early warning protection device for a transportation device according to an embodiment of the present application; FIG.

6A-6D are schematic diagrams showing the installation of a collision sensor for a collision detection and early warning protection device for a transportation device according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of a system configuration of an electronic device according to an embodiment of the present application.

detailed description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the present application will be further described in detail below with reference to the embodiments and drawings. The illustrative embodiments of the present application and the description thereof are for explaining the present application, but are not intended to limit the application.

In the description of the present specification, the description of the terms "an embodiment", "a specific embodiment", "such as" and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present application. At least one embodiment or example. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The order of the steps involved in the embodiments is used to schematically illustrate the implementation of the present application, and the order of the steps is not limited, and may be appropriately adjusted as needed.

Please refer to FIG. 1 , the present application provides a collision detection and early warning protection method for a transportation device, which specifically includes: S101 obtains an elastic wave signal generated by a collision outside the transportation device by using a plurality of collision sensors disposed on the transportation device, and The elastic wave signal is converted into a voltage signal; S102 obtains collision data and an operating parameter of the transportation device when the energy value of the voltage signal is higher than a predetermined threshold; S103 calculates a collision strength and a collision of the transportation device according to the collision data. a trajectory and a collision time; S104 obtains a pre-stored processing scheme by the collision force, the collision trajectory, the collision time, and the operating parameter, and controls the transportation device to perform a corresponding action according to the processing scheme. In the above embodiment, the transportation device may be a vehicle, and the collision sensor is disposed on a vehicle casing; the collision sensor may be disposed inside the casing of the transportation device or in the interlayer, and the piezoelectric ceramic sensor and the piezoelectric device may be adopted. A thin film sensor, a piezoelectric crystal sensor or other piezoelectric sensor has the main purpose of collecting elastic wave signals generated by collisions on the outer casing of the transportation equipment, and accurately analyzing the elastic wave signals to obtain the existence of the transportation equipment. Collision behavior; the collision time can be recorded by a processing circuit connected to the sensor and associated with other collision data for judging and recording the accident situation; in the process, any object will be specific when colliding with the transportation device The elastic wave signal can effectively distinguish the collision degree of the transportation equipment by the above-mentioned way in the actual work, and help the driver to know the collision condition of the transportation equipment in time; at the same time, further calculate and analyze the elastic wave signal and the collision sensor according to the present application. Obtain the collision strength and collision of the transportation equipment Parameters such as trace and collision time, combined with the operating parameters of the transportation equipment, can distinguish the current state of the transportation equipment and the dangerous situation existing in the next specific period. Based on these conditions, the predetermined treatment scheme can be used. When the collision of the transportation equipment occurs, the assisting driver can more accurately determine the subsequent control scheme of the transportation equipment, and avoid the unnecessary loss again after the collision of the transportation equipment.

In the above embodiment, controlling the transport device to perform a corresponding action according to the processing scheme includes: controlling, according to the processing scheme, the transport device to perform a transport device action record and/or an alert action; wherein the transport device action record Including but not limited to sampling and recording of images, sounds, etc.; the alarm actions include, but are not limited to, live sound alarms, short message notifications, and alarm information transmitted to the remote background through the communication module.

It is worth noting that the above-mentioned transportation equipment operating parameters may further include relevant information of the transportation equipment in a predetermined period before the collision occurs, the weight of the transportation equipment, the environmental data of the transportation equipment, the number and distribution of passengers in the transportation equipment, and the transportation equipment is occurring. In the event of a collision, the subsequent movement of the transport equipment can be calculated by the above-mentioned elastic wave signal. According to the subsequent trend of the transport equipment and the operating parameters of the transport equipment, the risk that the passengers and objects in the transport equipment may exist in the subsequent trend can be analyzed, based on the risk. Advance control of the transport equipment in advance to carry out corresponding control and treatment, to minimize the loss of personnel and property; of course, in actual work, the staff can further add relevant data on the safety of transport equipment as a reference, for example, the position of the vehicle airbag, the vehicle The information on the collision resistance of the body structure and the angle and strength of the collision of the vehicle body are compared and analyzed to obtain an optimal treatment plan. This application does not impose any specific restrictions.

Since the elastic wave signal is derived from vibration, the quality of the transport equipment also ensures that some minor collisions will not affect it. For this reason, in actual work, such as the slight collision of the elastic wave signal generated by the rain on the transport equipment, it is not necessary. Subsequent collision analysis processing, for the problem, the application performs filtering by the above step S102, which mainly performs data interception of a slight collision by setting a threshold value, thereby avoiding unnecessary calculation processing work in the later stage; the threshold value can mainly be transmitted according to Conditions such as the quality of the equipment are obtained by multiple tests in advance, and this application will not be described too much here.

或

In the case of a collision of the transportation device, the magnitude of the collision will directly determine the degree of the vehicle body and the safety of the passenger. For this reason, a calculation method for the collision force is also provided in an embodiment of the present application, where The frequency of the elastic wave signal converts the elastic wave signal into a voltage signal of a corresponding frequency or a voltage signal of an equal frequency. In this embodiment, the method for calculating the collision force in the above step S103 is mainly to help calculate the energy value of the elastic wave signal by converting the elastic wave signal into a corresponding frequency voltage signal, and then confirming the energy value of the elastic wave signal. The velocity at the time of the collision, specifically, the energy value of the collision data is obtained according to the amplitude of the collision data, and the collision strength of the transportation device is obtained according to the energy value of the collision data. In actual operation, one or more piezoelectric sensors C ₁ to C _n may be used to convert the respective received elastic wave signals into voltage signals D ₁ to D _n which are consistent with the frequency of the elastic wave signals received therefrom, and then according to The fluctuation values of the voltage signals D ₁ to D _n respectively calculate the energy values E ₁ to E _{n of the} respective voltage signals, and finally accumulate and/or average one or more of the energy values E ₁ to E _n to obtain The final total energy value of the elastic wave (when only one energy value E ₁ is obtained, the accumulation and averaging or 1*E ₁ /1 is no longer performed), and the total energy value of the elastic wave can be generated in response to the transportation device. The pressure information, thus obtaining the actual strength information; it is worth noting that, in the above process, the method of calculating the energy value according to the voltage signal can be mainly calculated by the following formula:

or

In the above formula, m is the number of signal points collected; n is the number of signal points determined by selecting the wavelength of the voltage signal of a predetermined length according to actual conditions, and those skilled in the art can select settings according to actual needs, and the present application does not further limit here. ; E is the energy value of the voltage signal.

When the collision occurs in the transportation device, the collision direction and the angle also intuitively determine the subsequent movement direction and the risk trend of the transportation device. For this reason, please refer to FIG. 2, in an embodiment of the present application, the step S103 is based on the collision data. Calculating the collision trajectory of the transportation device further comprises: obtaining a collision trajectory of the vehicle according to the position of the collision sensor receiving the elastic wave signal and the order in which the collision sensor receives the elastic wave signal. In this embodiment, since the position of the collision sensor is preset and confirmed, and when the vehicle collides, the elastic wave signal received by the specific number of collision sensors must be strong, thereby receiving according to the collision sensor. The time to the elastic wave signal sorts the collision sensors that receive the highest amplitude elastic wave signal, and then obtains the actual collision trajectory according to the position of the collision sensor. For example, the collision sensors A1, A2, and A3 receive at times B1, B2, and B3, respectively. To the elastic wave signal which is larger than the elastic wave signal received by the other collision sensors, the order of the collision sensors at this moment is A1 to A2 to A3, and then according to the actual position of the collision sensors, starting from A1, The actual collision trajectory is obtained with A3 as the end point.

Referring to FIG. 3, in the other embodiment of the present application, calculating the collision trajectory of the transport device according to the collision data may further include: obtaining, by using the collision data, a signal characteristic value of the voltage signal. And comparing the signal characteristic value with the pre-stored reference feature value, obtaining a collision coordinate position according to the comparison result; and obtaining the collision trajectory according to the collision coordinate position. Specifically, the feature model may be established by a machine learning algorithm and/or a deep learning algorithm according to the voltage signal obtained by the previous collision target position, and the signal characteristic value of the voltage signal is obtained according to the voltage signal and the feature model calculation. The feature value extraction module may establish a feature model by a machine learning algorithm and/or a depth learning algorithm according to the voltage signal obtained by colliding the predetermined position and the corresponding reference feature value. Specifically, in actual work, the staff may acquire an elastic wave signal generated by the collision at a specified position in advance, and convert the elastic wave signal into a voltage signal, and use the voltage signal as an input signal to pass the machine learning algorithm and/or depth. The learning algorithm performs training to obtain a feature model for extracting signal feature values in the voltage signal, and may also manually analyze a feature portion having a higher difference in the voltage signal to obtain a feature value corresponding to the voltage signal, the feature value That is, the reference characteristic value corresponding to the voltage signal; the voltage signal can be used as an input at this time, and the reference feature value is used as an output, and the feature model is established by a deep learning algorithm or a machine learning algorithm; In the case of a collision, the calculated voltage signal can be calculated by the feature model analysis to obtain a corresponding signal characteristic value. Of course, in actual work, a voltage signal generated by a massive collision can also be acquired, and a characteristic model can be obtained by using the voltage signal through a machine learning algorithm and/or a deep learning algorithm, which can be generated by the feature model and the actual touch of the user later. The voltage signal is calculated to obtain the signal characteristic value of the collision, and the real position is obtained according to the characteristic value of the signal; the present application is not specifically limited herein, and those skilled in the art may select and use according to actual needs.

Please refer to Figure 5, because the source of the elastic wave signal is directly related to the vibration of the transport equipment. For this reason, the vibration of the transport equipment during driving and start-stop will also have elastic wave signals, such as engine vibration and transportation equipment. Active or passive bumps, etc.; at this time, the elastic wave signals generated by the vibrations are not generated by the collision, and belong to the internal noise of the transportation equipment itself, in order to avoid the influence of the internal helium on the calculation of the actual collision data in the later period, In an embodiment, the transport equipment collision detection and early warning protection method may further include: obtaining a vehicle engine vibration frequency or amplitude range, and obtaining vehicle interior noise data according to the vehicle engine vibration frequency or amplitude range, Comparing the voltage signal with the internal noise data to obtain the collision data; and/or comparing the elastic wave signals received by at least three of the collision sensors on the same component of the vehicle, when the difference ratio between the two is greater than When the threshold is predetermined, the elastic wave signal is converted into a voltage signal. In this embodiment, since the internal noise of the vehicle 501 has the same direction of the elastic wave signal of the same component in the vehicle body and the signal size is proportional, for this reason, the elastic wave signals obtained by at least three collision sensors 502 on the same component of the vehicle 501. If the difference is proportional, it means that the vibration is caused by the noise inside the vehicle, and the elastic wave signals are discarded until the difference between the two is greater than a predetermined ratio, and it is proved that there is an external collision at present; wherein the collision sensor 502 is in the vehicle. The mounting position on each component of 501 can be specifically shown in FIGS. 6A to 6D. The mounting manner of the collision sensor 502 regarding the vehicle door 601 is described in FIG. 6A, and the vehicle housing 602 is shown in FIG. 6B. The mounting manner of the collision sensor 502, the mounting manner of the collision sensor 502 of the hood cover or the trunk lid 603 is given in Fig. 6C, and the mounting manner of the collision sensor 502 of the front and rear bumpers 604 is shown in Fig. 6D. Of course, in actual work, the staff can also adjust the installation position of each collision sensor 502 according to actual needs. This application is only a simple example here. It does not define any specific installation position thereof. Further, since the main internal noise of the vehicle is caused by components such as an engine, the magnitude of the elastic wave generated by the vibration frequency or amplitude range of the engine itself can be confirmed, and the internal noise generated by the elastic wave is confirmed according to the magnitude of the elastic wave. Data, in the event of a collision to generate an elastic wave signal, the internal noise data can be filtered out in the elastic wave signal to calculate the collision data to accurately the actual collision result, of course, to improve the calculation efficiency, or only the acquisition is higher than The elastic wave signal lower than the internal noise data is used as collision data to avoid interference caused by noise inside the vehicle. Of course, there are other methods for reducing internal noise in the actual work, such as confirming the intensity and direction of the elastic wave signal generated by the internal noise in advance, and when the elastic wave signals are detected subsequently, the screening is performed by comparison. The application will not be detailed here.

In the actual work, the occasional bump or emergency stop of the transport equipment during the driving process may also cause the elastic wave signal to be generated in the transport equipment casing, but the elastic wave signal is not the actual collision signal. For this reason, in an embodiment of the present application, Converting the elastic wave signal into a voltage signal further includes: obtaining a mounting position of the collision sensor having the highest output energy value according to the energy value of the voltage signal; obtaining a voltage signal output by the at least one collision sensor according to the installation position of the collision sensor, And calculating, by the voltage signal, a ratio of voltage signals output by all the collision sensors on the transportation device; when the ratio is greater than a predetermined threshold, converting the elastic wave signal into a voltage signal. That is to say, when the sensor detects the signal, it is judged by the combination relationship of the plurality of sensor responses whether it is the actual collision of the vehicle body or the sensor response signal caused by the external environment noise or interference. For example, when the transportation device receives the voltage signal collected by the collision sensor, the maximum response signal, that is, the voltage signal with the highest energy value is confirmed by comparison analysis, and the collision sensor corresponding to the voltage signal is taken as the core to determine whether the installed position is There are other collision sensors, for example, the collision sensor corresponding to the voltage signal with the highest energy value is installed in the door, and the voltage signal collected by other collision sensors at the door is further obtained; then the voltage signals are further generated. Comparing with the voltage signal collected by all the collision sensors of the transportation equipment, calculating the ratio of the voltage signals of all the collision sensor outputs, if the ratio is greater than the set threshold, it may be considered as an actual collision, otherwise it is external Interference occurs, such as the aforementioned bumps or external sound interference, so the response energy is more balanced, rather than concentrated near the collision point; thereby further eliminating the impact of interference signals on subsequent transportation equipment control.

In summary, the application of the collision detection and early warning protection method of the transportation equipment provided in the present application to the actual work may specifically include the following process: during the normal driving process, when the collision sensor collects an elastic wave signal exceeding a threshold value. When the acquisition channel is opened for 5ms, the elastic wave signal energy is calculated by the prefabricated algorithm, and the energy is accumulated to obtain the collision force E1; the high frequency detection is continued for several times after the collision signal, is it still There is a continuous collision signal; if it is not detected, the high frequency detection step is terminated, and the normal detection state is entered, indicating that the collision is an accidental event and not a collision accident. If continuous detection is present, the continuous collision force E1 is obtained according to the above steps. , E2, ..., En, until the collision disappears; at the same time, the position of the collision signal is marked as the 1, 2, ..., n contact point, the position information of the contact point is synchronized in the calculation of energy Calculated, the first, 2, ..., n contact point coordinates (x1, 2, ..., n, y1, 2, ..., n), simultaneously, this The time of the collision signal is marked as the first, second, ..., and n time points, and the one-to-one correspondence of the time points corresponds to the above-mentioned collision force and the contact point position, and at different time points, the abscissa is drawn, and the collision position, The velocity is a relationship graph of the ordinate; the graph is sent to the vehicle central control system, and the vehicle condition information, the road condition information, and the above relationship graph are transmitted to the big data through the networking function of the central control system, through the big data Analyze and judge, give the optimal treatment plan, and the central control system performs the corresponding action according to the treatment plan.

In an embodiment of the present application, the collision detection and early warning protection method of the transportation device may further include: obtaining, according to the frequency and the change of the voltage signal in the collision data, an object type that collides with the transportation device; The object category, the collision velocity, the collision trajectory, the collision time, and the operating parameter obtain a pre-stored processing scheme, and the transportation device is controlled to perform a corresponding action according to the processing scheme. Wherein, the object category refers to which type of object the collision of the transport equipment collides with; for example, with people, vehicles, buildings, trees, etc., and other factors that cause the elastic wave signal to be received by the piezoelectric sensor, For example, road bumps, rain and snow hail, switch doors, vehicle activities, whistle, road stone splashes, etc., through signal processing analysis, can determine different data types, further eliminate interference, and make corresponding disposal measures; as for signals The processing analysis process can be determined based on the difference of the elastic wave signals generated by collisions of different objects, and the specific method will be described later, and will not be described in detail herein.

In the above embodiment, the main method for obtaining the object type colliding with the transport device according to the frequency and the change of the voltage signal in the collision data is as follows: comparing the frequency of the voltage signal in the collision data with a predetermined threshold, according to The comparison result determines the hardness of the object colliding with the transport device; comparing the hardness of the object with the pre-stored data, the object class is obtained based on the correlation between the two. Specifically, the identification of the object class can be obtained according to the frequency of the signal and the variation law of the signal. Judging from the signal frequency, for example, when the main frequency component of the signal is low frequency, it is judged to be a soft object, which can be considered as a collision with a person. When the main frequency component of the signal is a high frequency, it is judged to be a hard object, which can be considered as Vehicle or building; judged according to the law of signal change. For example, when the main energy of the signal is in the initial part of the signal, the collision object is considered to be a hard object and does not deform, and can be regarded as a fixed object, such as a building. When the main energy of the signal is at the tail of the signal, it is considered that the colliding object is a deformable or moving object, such as a person or a vehicle.

In an embodiment of the present application, the collision detection and early warning protection method of the transportation device may further include: calculating, by using a time difference method, a collision position of the transportation device by using a voltage signal collected by the plurality of collision sensors; The collision position and the collision force are compared with a predetermined threshold, and the transportation device is controlled to perform a corresponding action according to the comparison result; in this embodiment, the previous collision velocity data may be further combined, for example, the energy received by the piezoelectric sensor. Or the energy on a specific frequency segment is used to calculate the collision strength, which can be used to determine the damage degree of the transportation equipment or the damage degree to the person and the object. When the collision force is greater than a certain threshold, the braking action needs to be performed, and further consideration can be made for the alarm (including Notify the relevant responsible party) or hedge. The combination of a plurality of piezoelectric sensor signals, the time difference method and the like can be used to locate the position where the collision occurs, and further can determine whether the damage of the transport equipment body or the damage to the person and the object is caused by the position information, thereby making control transportation. The equipment performs measures such as braking, alarming, and emergency hedging.

Please refer to FIG. 4 , the present application further provides a collision detection and early warning protection device for a transportation device, the device comprising a data acquisition module, an analysis module, a calculation module and a plurality of collision sensors; the collision sensor is disposed on the transportation device Obtaining an elastic wave signal generated by a collision outside the transportation device, and converting the elastic wave signal into a voltage signal; the data acquisition module is configured to obtain a collision when an energy value of the voltage signal is higher than a predetermined threshold An operation parameter of the data and the transportation device; the analysis module is configured to calculate a collision force, a collision trajectory and a collision time of the transportation device according to the collision data; the calculation module is configured to pass the collision force, the collision trajectory, The collision time and the operating parameter obtain a pre-stored processing scheme, and the transportation device is controlled to perform a corresponding action according to the processing scheme; wherein the transportation device may be a vehicle.

In the above embodiment, the collision sensor comprises: converting the elastic wave signal into a voltage signal of a corresponding frequency or a voltage signal of a proportional frequency according to a frequency of the elastic wave signal. The analysis module 403 then calculates the energy value of the collision data according to the amplitude of the collision data, and obtains the collision strength of the vehicle according to the energy value of the collision data. The specific process is described in detail in the above embodiments, and the present application will not be described too much herein.

In an embodiment of the present application, the analyzing module includes: calculating a collision trajectory of the vehicle according to a position of the collision sensor receiving the elastic wave signal and a sequence of receiving the elastic wave signal by the collision sensor. And/or obtaining a signal characteristic value of the voltage signal by using the collision data; comparing the signal characteristic value with a pre-stored reference feature value, obtaining a collision coordinate position according to the comparison result; obtaining the Collision trajectory.

In an embodiment of the present application, the vehicle collision detection and early warning protection device further includes a denoising module, wherein the denoising module is configured to receive an elastic wave signal received by at least three of the collision sensors having a distance less than a predetermined threshold. In the case of a pairwise comparison, when the difference ratio between the two is greater than a predetermined threshold, the elastic wave signal is converted into a voltage signal. And/or comparing the elastic wave signals received by at least three of the collision sensors on the same component of the vehicle, and converting the elastic wave signal into a voltage signal when the difference ratio between the two is greater than a predetermined threshold.

The vehicle collision detection and early warning protection method and device provided by the application can effectively detect the external collision situation of the vehicle, and accurately confirm the current state of the vehicle according to the collision conditions, thereby helping the driver to provide a more accurate braking scheme and ensuring the driver and the passenger. Life and property security.

The present application further provides an electronic device, which may be a desktop computer, a tablet computer, a mobile terminal, etc., and the embodiment is not limited thereto. In this embodiment, the electronic device may refer to the implementation of the foregoing method and the foregoing apparatus, and the content thereof is incorporated herein, and the details are not described again.

FIG. 7 is a schematic block diagram of a system configuration of an electronic device 600 according to an embodiment of the present application. As shown in FIG. 7, the electronic device 600 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100. It should be noted that the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.

In one embodiment, processes such as voltage signal analysis and subsequent control scheme output may be integrated into central processor 100. The central processing unit 100 may be configured to perform control of obtaining collision data and an operating parameter of the transportation device when the energy value of the voltage signal is higher than a predetermined threshold; and calculating a collision strength of the transportation device according to the collision data. a collision trajectory and a collision time; obtaining a pre-stored processing scheme by the collision force, the collision trajectory, the collision time, and the operating parameter, and controlling the transportation device to perform a corresponding action according to the processing scheme.

The converting the elastic wave signal into a voltage signal comprises: the collision sensor converting the elastic wave signal into a voltage signal of a corresponding frequency or a voltage signal of an equal frequency according to a frequency of the elastic wave signal.

The calculating the collision strength of the transportation device according to the collision data comprises: obtaining an energy value of the collision data according to the amplitude value of the collision data, and obtaining a collision strength of the vehicle according to the energy value of the collision data.

Wherein, calculating the collision trajectory of the transportation device according to the collision data comprises: obtaining a collision trajectory of the vehicle according to the position of the collision sensor receiving the elastic wave signal and the order in which the collision sensor receives the elastic wave signal.

Calculating the collision trajectory of the transportation device according to the collision data comprises: obtaining a signal characteristic value of the voltage signal by using the collision data; comparing the signal characteristic value with a pre-stored reference eigenvalue, and obtaining according to the comparison result Collision coordinate position; obtaining the collision trajectory according to the collision coordinate position.

The central processing unit 100 may be further configured to perform control of obtaining a vehicle engine vibration frequency or amplitude range, obtaining vehicle interior noise data according to the vehicle engine vibration frequency or amplitude range, and the voltage signal and the Comparing the internal noise data, obtaining the collision data; and comparing the elastic wave signals received by at least three of the collision sensors on the same component of the vehicle, and when the difference ratio is greater than a predetermined threshold, the elastic wave is Converting a signal into a voltage signal; and obtaining an object class that collides with the transport device according to a frequency and a change of the voltage signal in the collision data; by the object class, the collision force, the collision trajectory, The collision time and the operating parameter obtain a pre-stored processing scheme, and the transportation device is controlled to perform a corresponding action according to the processing scheme.

The obtaining, by the frequency and the change of the voltage signal in the collision data, the object type that collides with the transportation device includes: comparing a frequency of the voltage signal in the collision data with a predetermined threshold, and determining, according to the comparison result, The hardness of the object that the transport device collides; the hardness of the object is compared with the pre-stored data, and the object class is obtained according to the correlation between the two.

The central processing unit 100 may be further configured to: control, by using a voltage signal collected by the plurality of collision sensors, a collision position obtained by the collision of the transportation device by using a time difference method; and the collision position and the The collision force is compared with a predetermined threshold, and the transportation device is controlled to perform a corresponding action according to the comparison result.

The central processing unit 100 can also be configured to control to control the transportation device to perform a transportation device action record and/or an alert action according to the processing scheme; wherein the transport device action record includes, but is not limited to, an image, Sampling and recording of sounds; the alarm actions include, but are not limited to, live sound alarms, short message notifications, and alarm information transmitted to the remote background through the communication module.

As shown in FIG. 7, the electronic device 600 may further include: a communication module 110, an input unit 120, a collision sensor 130, a display 160, and a power source 170. It should be noted that the electronic device 600 does not have to include all the components shown in FIG. 7; in addition, the electronic device 600 may further include components not shown in FIG. 7, and reference may be made to the prior art.

As shown in FIG. 7, central processor 100, also sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device that receives input and controls various components of electronic device 600. The operation of the part.

The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device. The above-mentioned information related to the failure can be stored, and a program for executing the related information can be stored. And the central processing unit 100 can execute the program stored by the memory 140 to implement information storage or processing and the like.

Input unit 120 provides input to central processor 100. The input unit 120 is, for example, a button or a touch input device. The power source 170 is used to provide power to the electronic device 600. The display 160 is used to display a display object such as an image or a character. The display device 160 can be, for example, a touch device such as an LCD display. The input unit 120 can be integrated with the display device 160 to implement a touch display function, but is not limited thereto.

The memory 140 can be a solid state memory such as a read only memory (ROM), a random access memory (RAM), a SIM card, or the like. It is also possible to store a memory that can be selectively erased and provided with more data even when the power is turned off, and an example of the memory is sometimes referred to as an EPROM or the like. Memory 140 can also be some other type of device. Memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage section 142 for storing an application and a function program or a flow for executing an operation of the electronic device 600 by the central processing unit 100.

The memory 140 may also include a data storage portion 143 for storing data such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage portion 144 of the memory 140 may include various drivers for the communication function of the electronic device and/or for performing other functions of the electronic device such as a messaging application, an address book application, and the like.

The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via the antenna 111. A communication module (transmitter/receiver) 110 is coupled to the central processing unit 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal, including but not limited to WIFI, 3G, 4G, 5G or GPRS network.

Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a Bluetooth module, and/or a wireless local area network module, may be provided in the same electronic device. The communication module (transmitter/receiver) 110 also issues a designated signal via the central processor 100 to obtain a corresponding command, thereby realizing the usual telecommunication function. Piezoelectric sensor 130 can include any suitable piezoelectric sensing element, such as a thin film piezoelectric sensor or the like.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The specific embodiments of the present invention have been described in detail with reference to the specific embodiments of the present application. It is to be understood that the foregoing description is only The scope of protection, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application are intended to be included within the scope of the present application.

Claims (15)

A collision detection and early warning protection method for a transportation device, characterized in that the method comprises: Obtaining an elastic wave signal generated by a collision outside the transportation device by using a plurality of collision sensors disposed on the transportation device, and converting the elastic wave signal into a voltage signal; Obtaining collision data and operating parameters of the transportation device when the energy value of the voltage signal is higher than a predetermined threshold; Calculating a collision force, a collision trajectory, and a collision time of the transportation device according to the collision data; A pre-stored processing scheme is obtained by the collision force, the collision trajectory, the collision time, and the operating parameter, and the transportation device is controlled to perform a corresponding action according to the processing scheme. The collision detection and early warning protection method for a transportation device according to claim 1, wherein the transportation device is a vehicle. The collision detection and early warning protection method for a transport device according to claim 2, wherein converting the elastic wave signal into a voltage signal comprises: the collision sensor transmitting the elastic wave signal according to a frequency of the elastic wave signal Converted to a voltage signal of a corresponding frequency or a voltage signal of a proportional frequency. The collision detection and early warning protection method for a transportation device according to claim 3, wherein calculating the collision strength of the transportation device according to the collision data comprises: calculating the energy of the collision data according to the amplitude of the collision data And obtaining a collision strength of the vehicle according to the energy value of the collision data. The collision detection and early warning protection method for a transportation device according to claim 2, wherein calculating the collision trajectory of the transportation device according to the collision data comprises: receiving a collision sensor position according to the received elastic wave signal and receiving the collision sensor The sequence of the elastic wave signals is calculated to obtain the collision trajectory of the vehicle. The collision detection and early warning protection method of the transportation device according to claim 2, wherein calculating the collision trajectory of the transportation device according to the collision data comprises: obtaining a signal characteristic value of the voltage signal by using the collision data; Comparing the signal feature value with the pre-stored reference feature value, obtaining a collision coordinate position according to the comparison result; obtaining the collision trajectory according to the collision coordinate position. The collision detection and early warning protection method for a transportation device according to claim 2, wherein the method further comprises: obtaining a vibration frequency or a range of amplitude of the vehicle engine, and obtaining an in-vehicle according to the vibration frequency or amplitude range of the vehicle engine The noise data is compared with the internal noise data to obtain the collision data. The collision detection and early warning protection method for a transport device according to claim 2, wherein converting the elastic wave signal into a voltage signal further comprises: obtaining a collision sensor having the highest output energy value according to the energy value of the voltage signal a mounting position; obtaining a voltage signal output by the at least one collision sensor according to the installation position of the collision sensor, and calculating a ratio of voltage signals output by all of the collision sensors on the transportation device; when the ratio is When it is greater than a predetermined threshold, the elastic wave signal is converted into a voltage signal. The collision detection and early warning protection method for a transportation device according to claim 2, wherein the method further comprises: comparing elastic wave signals received by at least three of the collision sensors on the same component of the vehicle, When the difference ratio between the two is greater than a predetermined threshold, the elastic wave signal is converted into a voltage signal. The collision detection and early warning protection method for a transportation device according to claim 1, wherein the method further comprises: obtaining an object category colliding with the transportation device according to a frequency and a change of a voltage signal in the collision data; Obtaining a pre-stored processing scheme by the object category, the collision velocity, the collision trajectory, the collision time, and the operating parameter, and controlling the transportation device to perform a corresponding action according to the processing scheme. The collision detection and early warning protection method for a transport device according to claim 10, wherein the object type that collides with the transport device according to the frequency and the change of the voltage signal in the collision data comprises: the collision The frequency of the voltage signal in the data is compared with a predetermined threshold, and the hardness of the object colliding with the transport device is determined according to the comparison result; the hardness of the object is compared with the pre-stored data, and the object class is obtained according to the correlation between the two. The collision detection and early warning protection method for a transportation device according to claim 1, wherein the method further comprises: calculating, by using a time difference method, a collision signal of the transportation device by using a voltage signal collected by the plurality of collision sensors. a collision position; comparing the collision position and the collision force with a predetermined threshold, and controlling the transportation device to perform a corresponding action according to the comparison result. The collision detection and early warning protection method for a transportation device according to claim 1, wherein controlling the transportation device to perform a corresponding action according to the processing scheme comprises: controlling the transportation device to perform a transportation device action record according to the processing scheme And/or an alarm action; wherein the transportation device action record includes, but is not limited to, sampling and recording of images, sounds, etc.; the alarm actions include but are not limited to live sound alarms, short message notifications, and alarm information transmitted to the remote background through the communication module. . An electronic device comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, wherein the processor performs the method of claim 1. A computer readable storage medium storing a computer program for performing the method of claim 1.

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