Automatic window explosion method and system for vehicle and vehicle

Abstract

The invention provides an automatic window explosion method and system for a vehicle and the vehicle, and relates to the technical field of vehicle body control, and the method comprises the steps: obtaining image data in a vehicle driving process, extracting a vehicle feature position, a detection surface feature position and a current vehicle three-dimensional envelope body of the image data through a preset vehicle recognition model; the detection surface is a water surface, and if the vehicle does not wade into water, the detection surface is a driving surface; comparing the relative position relationship between the vehicle feature position and the detection surface feature position with a preset vehicle normal driving position relationship to obtain a conformity result, and comparing the total outer surface area of the current vehicle three-dimensional envelope with the unshielded outer surface area to obtain a shielded area rate, and controlling an exploder to explode according to the conformity result and / or the shielding area rate so as to explode window glass under different accident conditions, so that a self-rescue channel is provided for a driver and passengers in time, and the self-rescue success rate of the driver and passengers after an accident occurs is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body control, and in particular to a vehicle automatic window breaking method, system and vehicle. Background Art

[0002] With the development of the transportation industry, people pay more and more attention to traffic safety. The safety of vehicles has become an important consideration in the vehicle design process. Once an accident occurs in various types of vehicles, it is very likely to threaten the lives of drivers and passengers. At the same time, when the vehicle falls into a pond, overturns or is buried, the doors and windows are difficult to open smoothly due to deformation of the doors or the panic of the drivers and passengers. In this case, it is difficult to provide drivers and passengers with a timely and effective self-rescue channel. In order to avoid the above phenomenon, existing vehicles are equipped with an automatic window explosion system to provide drivers and passengers with a timely and effective self-rescue channel by exploding windows.

[0003] However, the existing automatic window breaking system has limited applicability to different accident scenarios. When the vehicle falls into a pond, overturns or is buried, the automatic window breaking system can only be manually activated by the driver and passengers. Therefore, when the driver and passengers are restricted in their movements, it is difficult for them to break the window glass in time, open the self-rescue channel, and carry out self-rescue in time. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a vehicle automatic window breaking method, system and vehicle, so as to solve the problem that the existing automatic window breaking systems in the prior art have limited applicability to different accident scenarios.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a vehicle automatic window breaking method, comprising:

[0006] Acquire image data during vehicle driving;

[0007] Extracting the vehicle feature position, the detection surface feature position and the current vehicle three-dimensional envelope from the image data, if the vehicle is wading, the detection surface is the water surface, if the vehicle is not wading, the detection surface is the driving surface;

[0008] Comparing the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface with a preset normal driving position relationship of the vehicle to obtain a compliance result;

[0009] Comparing the total outer surface area of ​​the three-dimensional envelope of the current vehicle with the unobstructed outer surface area to obtain an obstructed area ratio;

[0010] Controlling the detonation of the detonator according to the compliance result and / or the shielding area ratio to blast the vehicle window glass;

[0011] Wherein, the detonating device is arranged corresponding to the vehicle window glass.

[0012] In an exemplary embodiment, before extracting the vehicle feature positions and the detection surface feature positions of the image data, the image data is corrected and planarized.

[0013] In an exemplary embodiment, the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface is compared with a preset normal driving position relationship of the vehicle to obtain a compliance result, including:

[0014] The image data includes a vehicle driving image obtained by observing the vehicle from the side of the vehicle;

[0015] Comparing the relative position relationship between the characteristic position of the detection surface and the characteristic position of the vehicle;

[0016] If, in the image data, the characteristic position of the detection surface is higher than the characteristic position of the vehicle or the vehicle driving image does not include the characteristic position of the detection surface, the conformity result is non-conformity.

[0017] In an exemplary embodiment, controlling the detonation of an explosion device to explode according to the compliance result and / or the shielding area ratio to blast the vehicle window glass includes:

[0018] The compliance results include compliance and non-compliance;

[0019] If the compliance result is not met, and / or the shielding area ratio is greater than a preset shielding area warning value, then the vehicle window glass is blasted;

[0020] If the compliance result is compliance, and the occlusion area ratio is less than or equal to the preset occlusion area warning value, no action is taken.

[0021] In an exemplary embodiment, if the blocking area ratio is greater than or equal to a preset blocking area warning value, the vehicle window glass is blasted, further comprising:

[0022] The preset shielding area warning value includes a preset maximum collision shielding area warning value and a preset maximum buried shielding area warning value;

[0023] Obtain the vehicle speed and obtain the vehicle instantaneous speed change rate;

[0024] comparing the instantaneous speed of the vehicle with the warning speed change rate;

[0025] If the instantaneous speed change rate of the vehicle is greater than or equal to the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum collision shielding area warning value, the vehicle window glass is blasted;

[0026] If the instantaneous speed change rate of the vehicle is less than the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum buried shielding area warning value, blast the vehicle window glass;

[0027] The preset maximum collision shielding area is smaller than the preset maximum buried shielding area.

[0028] In an exemplary embodiment, after acquiring the image data during the vehicle driving process, the method further includes:

[0029] The flame is identified through a preset flame recognition model, and the flame area is marked. If the distance between the flame area and the three-dimensional envelope of the current vehicle is less than a preset warning distance, the vehicle window glass is blasted.

[0030] In an exemplary embodiment, a window breaking start inquiry is issued and a user breaking instruction is received before breaking the vehicle window glass, and the vehicle window glass is broken based on the user breaking instruction. If the user breaking instruction is not received within a preset time after the window breaking start inquiry is issued, the vehicle window glass is broken.

[0031] The present invention provides a vehicle automatic window breaking system, comprising:

[0032] An image acquisition module, wherein the image acquisition module is used to acquire image data during the vehicle's driving process;

[0033] An explosive device, the explosive device is arranged corresponding to the window glass of the vehicle, and the explosive device is used to blast the window glass;

[0034] An automatic window-breaking control module is used to extract the vehicle feature position, the detection surface feature position and the current vehicle three-dimensional envelope of the image data. If the vehicle is wading, the detection surface is the water surface, and if the vehicle is not wading, the detection surface is the driving surface; the relative position relationship between the vehicle feature position and the detection surface feature position is compared with the preset vehicle normal driving position relationship to obtain a conformity result; the total outer surface area of ​​the current vehicle three-dimensional envelope and the unobstructed outer surface area are compared to obtain the obstruction area ratio; the detonation device is controlled to detonate according to the conformity result and / or the obstruction area ratio to blast the vehicle window glass.

[0035] In an exemplary embodiment, the detonating device includes a containing shell and a detonating head. The containing shell has a containing cavity and an opening. A temperature-sensitive explosive is arranged in the containing cavity. A heating element for heating the temperature-sensitive explosive is wrapped in the temperature-sensitive explosive. The detonating head facing the vehicle window glass is arranged at the opening.

[0036] The present invention provides a vehicle for implementing the above-mentioned vehicle automatic window breaking method.

[0037] As described above, the vehicle automatic window breaking method, system and vehicle of the present invention have the following beneficial effects: by comparing the relative relationship between the vehicle feature position and the detection surface feature position with the preset vehicle normal driving state position relationship, it can be known whether the vehicle is in a normal driving state, whether rollover, tipping or falling into water, etc. occurs; by obtaining the blocked area rate by the total outer surface area and the unblocked outer surface area of ​​the current vehicle's three-dimensional envelope, it can be known whether the vehicle has collided or been buried, etc. In this way, the vehicle window glass can be automatically broken in different accident situations, and the driver and passengers can be provided with a self-rescue channel in time, thereby improving the success rate of the driver and passengers' self-rescue after the accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Shown is a flow chart of the vehicle automatic window breaking method of the present invention.

[0039] Figure 2 It is a schematic diagram showing the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface according to an embodiment of the present invention.

[0040] Figure 3 Shown is a schematic structural diagram of a vehicle door according to an embodiment of the present invention.

[0041] Figure 4 Shown is a schematic structural diagram of an initiating device according to an embodiment of the present invention.

[0042] Explanation of reference numerals: 1. Door outer panel; 2. Window glass; 3. Detonator; 301. Dust cover; 302. Detonator head; 303. Heating element; 304. Temperature-sensitive explosive; 305. Containment shell; 4. Door inner panel. DETAILED DESCRIPTION

[0043] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] See also Figures 1 to 4It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner. The diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. shown in the drawings of the present specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0045] like Figure 1 and Figure 2 As shown, the present invention provides a vehicle automatic window breaking method, comprising:

[0046] Step S110: acquiring image data during the driving process of the vehicle. The image data is acquired by an image acquisition module arranged on the vehicle. The image data includes a vehicle environment image and a vehicle image.

[0047] In an exemplary embodiment, the image data can be acquired by a camera, which is arranged on the roof of the vehicle. Four cameras are arranged on the roof of the vehicle, and the four cameras respectively acquire the front area, the rear area, the left area and the right area of ​​the vehicle. In another exemplary embodiment, the camera can be arranged on the vehicle body through a camera bracket to acquire the image data. The setting position and setting method of the image acquisition module can be adjusted according to the actual usage.

[0048] Step S120: extracting the vehicle feature position, the detection surface feature position and the three-dimensional envelope of the current vehicle from the image data. If the vehicle is wading, the detection surface is the water surface; if the vehicle is not wading, the detection surface is the driving surface.

[0049] It should be noted that vehicle wading includes the vehicle driving or staying on a flooded road or in a river, and vehicle not wading means the vehicle driving on a dry road.

[0050] In an exemplary embodiment, before extracting the vehicle feature positions and the detection surface feature positions of the image data, the image data is corrected and planarized.

[0051] In an exemplary embodiment, since the image data acquired by the vehicle may produce perspective distortion during the driving process, it is difficult to effectively determine the spatial position relationship between objects. The image data is converted into a front view through the IPM algorithm (Interior Point Methods) to ensure the accuracy of the position relationship between objects. After the image data is converted into a front view, the distortion caused by the camera angle in the image data can be eliminated, and the objects in the three-dimensional space can be flattened in the two-dimensional image to obtain more accurate vehicle feature positions and detection surface feature positions.

[0052] In another exemplary embodiment, in view of the fact that the quality and clarity of the image data acquired by the image acquisition module may be affected during the driving of the vehicle, causing the image in the image data to be blurred and other problems. The image acquisition module may use optical image stabilization (OIS) to reduce the jitter by detecting the camera movement in the image acquisition module and applying a compensation offset to the lens or sensor, or may use an algorithm implemented on an image signal processor (ISP) to eliminate severe jitter, which may be an electric image stabilization (EIS) algorithm. The above-mentioned de-shaking method is also called digital image stabilization (DIS), electronic image stabilization (EIS) or video stabilization (VS).

[0053] Step S130: Compare the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface with the preset normal driving position relationship of the vehicle to obtain a compliance result.

[0054] In an exemplary embodiment, the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface is compared with a preset normal driving position relationship of the vehicle to obtain a compliance result, including step S210.

[0055] Step S210: The image data includes a vehicle driving image obtained by observing the vehicle from the side of the vehicle; the relative position relationship between the characteristic position of the detection surface and the characteristic position of the vehicle is compared; if in the image data, the characteristic position of the detection surface is higher than the characteristic position of the vehicle or the vehicle driving image does not include the characteristic position of the detection surface, the compliance result is non-compliance.

[0056] The preset normal driving position relationship of the vehicle includes a characteristic position of the detection surface and a characteristic position of the vehicle, and the characteristic position of the detection surface is lower than the characteristic position of the vehicle.

[0057] Step S140: Compare the total outer surface area and the unobstructed outer surface area of ​​the current vehicle three-dimensional envelope to obtain the obstructed area ratio.

[0058] The occlusion area rate is a quotient obtained by dividing the difference between the total outer surface area of ​​the three-dimensional envelope of the current vehicle and the unoccluded outer surface area by the total outer surface area of ​​the three-dimensional envelope of the current vehicle.

[0059] Step S150: controlling the detonation device according to the compliance result and / or the shielding area ratio to blast the vehicle window glass 2 .

[0060] In an exemplary embodiment, controlling the detonation of the detonation device to explode the vehicle window glass 2 according to the compliance result and / or the shielding area ratio includes step S310.

[0061] Step S310: The compliance result includes compliance and non-compliance; if the compliance result is non-compliance, and / or the blocking area ratio is greater than the preset blocking area warning value, the vehicle window glass 2 is blasted; if the compliance result is compliance, and the blocking area ratio is less than or equal to the preset blocking area warning value, the detonator does not operate.

[0062] By blasting the vehicle window glass 2 according to the compliance result and / or the shielding area ratio, different accident scenarios can be adapted to leave a self-rescue channel for the driver and passengers in time, thereby improving the timeliness of the driver and passengers' self-rescue.

[0063] It should be noted that the "upper" and "lower" used in this application are relative directional terms. When projected onto the vehicle, the upper part of the vehicle is the roof and the lower part of the vehicle is the wheels; when projected onto the external environment where the vehicle is traveling, the part close to the sky is the upper part, and the part close to the driving surface is the lower part.

[0064] From daily life, we know that when the vehicle is not traveling through water, the characteristic position of the vehicle should be above the characteristic position of the detection surface. When the vehicle is traveling through water, the characteristic position of the vehicle may be lower or higher than the characteristic position of the detection surface.

[0065] There are several different situations when driving in water:

[0066] In the first case, the vehicle is driven into a river, lake or sea due to a malfunction or other unexpected situation, and when the water level overflows the characteristic position of the vehicle, the window glass 2 is blasted; in the second case, the vehicle is driven on a road with accumulated water, and when the accumulated water rises and overflows the characteristic position of the vehicle, the window glass 2 is blasted; in the third case, the vehicle accidentally falls into a river, lake or sea, and the water level overflows the characteristic position of the vehicle, the window glass 2 is blasted. In this embodiment, the characteristic position of the vehicle is the position of the vehicle above the door sill line and moved upward by a preset blasting distance, and the selection of the characteristic position of the vehicle can be adjusted according to different vehicle categories and models.

[0067] By the same token, when the vehicle overturns, due to the reversal of the up and down of the image data coordinate system obtained by the image acquisition module, the vehicle feature position will be reversed in order with the detection surface feature position. After the reversal, the relative position relationship between the vehicle feature position and the detection surface feature position changes, and the vehicle feature position is lower than the detection surface feature position. The compliance result is non-compliance, then the window glass 2 is blasted; when the vehicle rolls over, one side of the vehicle faces the sky, so the vehicle driving image on that side does not include the detection surface feature position. By blasting the window glass 2, a self-rescue channel is opened for the driver and passengers.

[0068] In an exemplary embodiment, if the shielding area ratio is greater than or equal to the preset shielding area, the vehicle window glass 2 is shattered, including step S410 and step S420.

[0069] Step S410: Acquire the vehicle speed and obtain the vehicle instantaneous speed change rate.

[0070] Step S420: The preset shielding area warning value includes a preset maximum collision shielding area warning value and a preset maximum buried shielding area warning value; compare the vehicle instantaneous speed with the warning speed change rate; if the vehicle instantaneous speed change rate is greater than or equal to the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum collision shielding area warning value, blast the vehicle window glass 2; if the vehicle instantaneous speed change rate is less than the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum buried shielding area warning value, blast the vehicle window glass 2; wherein, the preset maximum collision shielding area warning value is less than the preset maximum buried shielding area warning value.

[0071] In an exemplary embodiment, if a vehicle suddenly collides, when the collision occurs, the collision object will block the outer surface area of ​​the current vehicle's three-dimensional envelope. The above-mentioned blockage may be the damaged part of the vehicle during the collision, or the part of the vehicle that is buried after the collision, or the part of the vehicle that is suddenly buried by an external object. After comparing the partially blocked current vehicle three-dimensional envelope with the preset vehicle three-dimensional envelope, the total outer surface area of ​​the current vehicle three-dimensional envelope and the unblocked outer surface area are compared. The difference between the total outer surface area and the unblocked outer surface area is the blocked outer surface area of ​​the current vehicle three-dimensional envelope, and the quotient of the blocked outer surface area and the total outer surface area is the blocked area rate. Since a smaller blocking area rate can also cause greater damage during a collision, the preset maximum collision blocking area warning value is less than the preset maximum buried blocking area warning value during the judgment. At the same time, since the probability of misjudgment is relatively high when only the blocking area is determined during a collision, for example, a cloth block blocks the vehicle surface during driving, the instantaneous speed change rate of the vehicle is increased for auxiliary judgment, which can increase the credibility of the collision scenario judgment to a certain extent. In an exemplary embodiment, a pressure sensor may be provided on the vehicle to measure whether the stress on the vehicle during the collision is greater than the collision pressure warning value, so as to further increase the credibility of the collision scenario judgment.

[0072] It should be noted that, during the wading process of the above-mentioned vehicle, since the detection surface is the water surface, the part of the vehicle below the characteristic position of the detection surface is also displayed in a blurred state, which can be regarded as an obstructed state, but the image of the above situation is quite different from the image of collision and burial. For example, when wading, the position of the water surface around the vehicle is relatively similar within a certain fluctuation range, so the wading can be distinguished from the collision and burial scenes. At the same time, since the image data will record the process of the water surface submerging the characteristic position of the vehicle, the timing of the blasting of the window glass 2 can be accurately obtained. For another example, by establishing a wading model, the vehicle body position and water characteristics can be analyzed to identify whether the vehicle is in the water.

[0073] In an exemplary embodiment, after acquiring the image data of the vehicle during driving, step S510 is further included.

[0074] Step S510: The flame is identified by a preset flame identification model and the flame area is marked. If the distance between the flame area and the three-dimensional envelope of the current vehicle is less than a preset warning distance, the vehicle window glass 2 is blasted.

[0075] In an exemplary embodiment, flames in vehicle images can be detected based on a convolutional neural network and the flame area can be marked. The radiation area is a radiation envelope that wraps a preset three-dimensional envelope of the vehicle. The distance between any point on the radiation envelope and the preset three-dimensional envelope of the vehicle is a preset detection distance. The preset detection distance can be adjusted according to actual usage needs.

[0076] In an exemplary embodiment, before the window glass 2 is broken, a window breaking start inquiry is issued, and a user breaking instruction is received. The window glass 2 is broken based on the user breaking instruction. If the user breaking instruction is not received within a preset time after the window breaking start inquiry is issued, the window glass 2 is broken. Before the window glass 2 is broken, the user is asked whether to perform the window breaking operation, which can avoid the window breaking operation after misjudging the accident scene, causing unnecessary economic losses to the user, and increasing the practicality and applicability of the vehicle automatic window breaking method. For example, the user is asked whether the window needs to be broken through an alarm sound or a human voice, such as issuing a query "Do you need to break the window now?" If the user answers "yes", the window glass 2 is broken, and if the user answers "no", no action is taken; or a vehicle control screen inquiry prompt box is added to the above setting, such as prompting "Do you want to break the window glass 2? Yes / No", if the user selects "yes", the window glass 2 is broken, and if the user selects "no", no action is taken. When the user chooses not to break the vehicle window glass 2, the event of starting to break the vehicle window glass 2 is marked as a non-starting event.

[0077] In an exemplary embodiment, a button for manually blasting the window glass 2 is provided on the vehicle, and the user can click the button to manually blast the window glass 2 to compensate for the situation in which the window glass 2 is not blasted in time when the window glass 2 needs to be blasted in the vehicle's automatic window blasting method.

[0078] To summarize, by comparing the relative relationship between the vehicle feature position and the detection surface feature position with the preset vehicle normal driving state position relationship, it can be known whether the vehicle is in a normal driving state, whether it has rolled over, tipped over or fallen into the water, etc. By obtaining the blocked area rate by combining the total outer surface area of ​​the current vehicle's three-dimensional envelope and the unobstructed outer surface area, it can be known whether the vehicle has collided or been buried, etc. In this way, the window glass can be automatically blasted in different accident situations, providing the driver and passengers with a self-rescue channel in time, thereby improving the success rate of the driver and passengers' self-rescue after an accident.

[0079] like Figure 3 and Figure 4 As shown, the present invention provides a vehicle automatic window breaking system, comprising:

[0080] An image acquisition module, the image acquisition module is used to acquire image data during the vehicle's driving process, the image data including the vehicle environment image and the vehicle image;

[0081] An explosive device 3, the explosive device 3 is arranged corresponding to the vehicle window glass 2, and the explosive device 3 is used to blast the vehicle window glass 2;

[0082] Automatic window-breaking control module, the automatic window-breaking control module is used to extract the vehicle feature position, the detection surface feature position and the current vehicle three-dimensional envelope of the image data. If the vehicle is wading, the detection surface is the water surface, and if the vehicle is not wading, the detection surface is the driving surface; the relative position relationship between the vehicle feature position and the detection surface feature position is compared with the preset vehicle normal driving position relationship to obtain a compliance result; the total outer surface area of ​​the current vehicle's three-dimensional envelope and the unobstructed outer surface area are compared to obtain the obstruction area ratio; the detonation device is controlled to detonate according to the compliance result and / or the obstruction area ratio to blast the vehicle window glass 2.

[0083] In an exemplary embodiment, the detonator 3 includes a housing 305 and a detonator head 302. The housing 305 has a housing cavity and an opening. A temperature-sensitive detonator 304 is arranged in the housing cavity. A heating element 303 for heating the temperature-sensitive detonator is wrapped in the temperature-sensitive detonator 304. The detonator head 302 facing the vehicle window glass 2 is arranged at the opening. When the detonator 3 is started, the heating element 303 heats the temperature-sensitive detonator 304 to detonate the temperature-sensitive detonator 304, and pushes the detonator head 302 out of the opening to blast the vehicle window glass 2. A dust cover 301 is also arranged at the opening of the housing 305. The dust cover 301 is made of paper, tin foil, and other materials that are easily penetrated. The vehicle door is sequentially provided with a vehicle door outer panel 1, a vehicle window glass 2, and a vehicle door inner panel 4 along its thickness direction. The detonator 3 is arranged between the vehicle window glass 2 and the vehicle door inner panel 4. The heating element 303 may be a resistance wire. When the resistance wire is set on the heating circuit, when the heating circuit is turned on, the resistance wire generates heat and heats the temperature-sensitive explosive 304. The temperature-sensitive explosive 304 may be pyrotechnics, etc. The type of the temperature-sensitive explosive 304 may be adjusted according to actual needs. In an exemplary embodiment, the detonator head 302 has a conical impact head, and the tip of the conical impact head faces the vehicle window glass 2.

[0084] The present invention also provides a vehicle for implementing the above-mentioned vehicle automatic window breaking method.

[0085] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A vehicle automatic window breaking method, characterized in that: include: Acquire image data during vehicle driving; Extracting the vehicle feature position, the detection surface feature position and the current vehicle three-dimensional envelope from the image data, if the vehicle is wading, the detection surface is the water surface, if the vehicle is not wading, the detection surface is the driving surface; Comparing the relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface with a preset normal driving position relationship of the vehicle to obtain a compliance result; Comparing the total outer surface area of ​​the three-dimensional envelope of the current vehicle with the unobstructed outer surface area to obtain an obstructed area ratio; Controlling the detonation of the detonator according to the compliance result and / or the shielding area ratio to blast the vehicle window glass; Wherein, the detonating device is arranged corresponding to the vehicle window glass.

2. The vehicle automatic window breaking method according to claim 1, characterized in that: Before extracting the vehicle feature position and the detection surface feature position of the image data, the image data is corrected and planarized.

3. The vehicle automatic window breaking method according to claim 1, characterized in that: The relative position relationship between the characteristic position of the vehicle and the characteristic position of the detection surface is compared with a preset normal driving position relationship of the vehicle to obtain a compliance result, including: The image data includes a vehicle driving image obtained by observing the vehicle from the side of the vehicle; Comparing the relative position relationship between the characteristic position of the detection surface and the characteristic position of the vehicle; If, in the image data, the characteristic position of the detection surface is higher than the characteristic position of the vehicle or the vehicle driving image does not include the characteristic position of the detection surface, the conformity result is non-conformity.

4. The vehicle automatic window breaking method according to claim 1, characterized in that: Controlling the detonation of the detonator according to the compliance result and / or the shielding area ratio to blast the vehicle window glass includes: The compliance results include compliance and non-compliance; If the compliance result is not met, and / or the shielding area ratio is greater than a preset shielding area warning value, then the vehicle window glass is blasted; If the compliance result is compliance, and the shielding area ratio is less than or equal to the preset shielding area warning value, the detonating device does not operate.

5. The vehicle automatic window breaking method according to claim 4, characterized in that: If the blocking area ratio is greater than or equal to a preset blocking area warning value, the window glass is blasted, further comprising: The preset shielding area warning value includes a preset maximum collision shielding area warning value and a preset maximum buried shielding area warning value; Obtain the vehicle speed and obtain the vehicle instantaneous speed change rate; comparing the instantaneous speed of the vehicle with the warning speed change rate; If the instantaneous speed change rate of the vehicle is greater than or equal to the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum collision shielding area warning value, the vehicle window glass is blasted; If the instantaneous speed change rate of the vehicle is less than the warning speed change rate value, and the shielding area ratio is greater than or equal to the preset maximum buried shielding area warning value, blast the vehicle window glass; The preset maximum collision shielding area is smaller than the preset maximum buried shielding area.

6. The vehicle automatic window breaking method according to any one of claims 1 to 5, characterized in that: After acquiring the image data of the vehicle during driving, it also includes: The flame is identified through a preset flame recognition model, and the flame area is marked. If the distance between the flame area and the three-dimensional envelope of the current vehicle is less than a preset warning distance, the vehicle window glass is blasted.

7. The vehicle automatic window breaking method according to any one of claims 1 to 5, characterized in that: Before the window glass is blasted, a window blasting start inquiry is issued and a user blasting instruction is received, and the window glass is blasted based on the user blasting instruction. If the user blasting instruction is not received within a preset time after the window blasting start inquiry is issued, the window glass is blasted.

8. A vehicle automatic window breaking system, characterized in that: include: An image acquisition module, wherein the image acquisition module is used to acquire image data during the vehicle's driving process; An explosive device, the explosive device is arranged corresponding to the window glass of the vehicle, and the explosive device is used to blast the window glass; An automatic window-breaking control module is used to extract the vehicle feature position, the detection surface feature position and the current vehicle three-dimensional envelope of the image data. If the vehicle is wading, the detection surface is the water surface, and if the vehicle is not wading, the detection surface is the driving surface; the relative position relationship between the vehicle feature position and the detection surface feature position is compared with the preset vehicle normal driving position relationship to obtain a conformity result; the total outer surface area of ​​the current vehicle three-dimensional envelope and the unobstructed outer surface area are compared to obtain the obstruction area ratio; the detonation device is controlled to detonate according to the conformity result and / or the obstruction area ratio to blast the vehicle window glass.

9. The vehicle automatic window breaking system according to claim 8, characterized in that: The detonating device comprises a accommodating shell and a detonating head. The accommodating shell has a accommodating cavity and an opening. A temperature-sensitive explosive is arranged in the accommodating cavity. A heating element for heating the temperature-sensitive explosive is wrapped in the temperature-sensitive explosive. The detonating head facing the vehicle window glass is arranged at the opening.

10. A vehicle, characterized in that: Used to implement the vehicle automatic window breaking method as described in any one of claims 1-7.

Images