Safety device for a vehicle and control method thereof

Abstract

The application discloses a safety device for a vehicle and a control method thereof. The safety device comprises a safety hammer, which is detachably assembled to a floor of the vehicle; a detection assembly, which is fixed to the floor and is adapted to detect the distance between the floor and the ground and the environment around the vehicle; and a shooting assembly, which is installed on the floor and is adapted to shoot the safety hammer from the floor according to the distance between the floor and the ground and the environment around the vehicle. According to the safety device for the vehicle, the safety hammer can be released in time when the vehicle overturns, and rescue personnel can use the safety hammer to perform a window breaking rescue operation, so that the rescue efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the field of vehicles, and in particular to a safety device for vehicles and a method for controlling the same. Background Technology

[0002] In related technologies, vehicles are typically equipped with safety hammers as emergency escape tools for breaking windows. However, existing safety hammers are usually located inside the vehicle, such as in door storage compartments or beside seats. When a vehicle rolls over, items inside the vehicle often shift and scatter under the impact, and the safety hammer may fall into a hard-to-find corner. At the same time, the movement space of occupants is severely restricted in a rollover situation, and they may lose mobility due to the impact, making it difficult to find and use the safety hammer inside the vehicle. For rescuers outside the vehicle, the inability to directly observe the location of the safety hammer makes it difficult to quickly obtain it for window breaking, severely hindering rescue efficiency. In complex accident scene environments, rescuers may struggle to quickly locate the safety hammer, further delaying the optimal time for window breaking. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a safety device for vehicles that can promptly release a safety hammer in the event of a vehicle rollover accident, allowing rescue personnel to use the safety hammer for window-breaking rescue operations, thereby effectively improving rescue efficiency.

[0004] This application also proposes a control method for use in safety devices.

[0005] A safety device for a vehicle according to an embodiment of this application includes: a safety hammer detachably mounted to the floor of the vehicle; a detection assembly fixed to the floor and adapted to detect the distance between the floor and the ground and the environment surrounding the vehicle; and an ejection assembly mounted to the floor and adapted to eject the safety hammer from the floor based on the distance between the floor and the ground and the environment surrounding the vehicle.

[0006] According to an embodiment of this application, a safety device for a vehicle includes a safety hammer, a detection component, and an ejection component. The safety hammer is detachably mounted on the vehicle floor. Both the detection component and the ejection component are mounted on the floor. The detection component can detect the distance between the floor and the ground, as well as the environment around the vehicle. The ejection component can eject the safety hammer from the floor based on the distance between the floor and the ground and the environment around the vehicle. This allows the safety hammer to be released promptly in the event of a rollover accident, enabling rescue personnel to use it for window-breaking rescue operations, effectively improving rescue efficiency.

[0007] In some embodiments of this application, the ejection assembly includes: a support plate spaced apart from the floor, the surface of the support plate away from the floor abutting against the safety hammer; an elastic member connected between the support plate and the floor; and a fixing member passing through the safety hammer and connected to the floor, the fixing member being selectively fractureable to detach from the safety hammer and the floor.

[0008] In some embodiments of this application, the support plate is provided with a first magnetic element, and the floor is provided with a second magnetic element that magnetically engages with the first magnetic element; wherein, the number of the first magnetic elements is multiple and the multiple first magnetic elements are arranged at intervals along the circumference of the safety hammer, the number of the second magnetic elements is multiple and the multiple second magnetic elements are correspondingly arranged with the multiple first magnetic elements, and the number of the elastic elements is multiple and the multiple elastic elements are arranged at intervals along the circumference of the safety hammer.

[0009] In some embodiments of this application, the ejection assembly further includes a force sensor disposed on the elastic element and adapted to detect the current elastic force of the elastic element.

[0010] In some embodiments of this application, the safety hammer includes: a hammer handle having a mounting hole extending radially therethrough, and the fastener passing through the mounting hole; and a hammer head fixed to at least one end of the hammer handle along its extension direction, the end of the hammer head having a tapered portion.

[0011] In some embodiments of this application, a mounting cavity is formed within the hammer handle, and the safety hammer further includes a signal warning element, which is installed within the mounting cavity and adapted to send a signal to the outside through the hammer handle.

[0012] In some embodiments of this application, the detection component includes: a mounting base disposed on the floor and movable in a direction toward or away from the floor; a rotating member disposed on the mounting base and movable relative to the mounting base, the rotating member having a first detection element fixed at its end, the first detection element being adapted to detect the environment around the vehicle.

[0013] In some embodiments of this application, the detection component further includes: a first driving member disposed on the floor and tractively connected to the mounting base, the first driving member being adapted to drive the mounting base to move toward or away from the floor; and a second driving member disposed on the mounting base and tractively connected to the rotating member, the second driving member being adapted to drive the rotating member to rotate relative to the mounting base.

[0014] In some embodiments of this application, the detection component further includes a second detection element, which is fixed to at least one of the floor and the mounting base, and is adapted to detect the distance between the floor and the ground.

[0015] The control method of embodiments of this application is described below.

[0016] According to the control method of this application embodiment, the control method is applied to the safety device described in the above embodiment. The control method includes: detecting the distance between the floor of the vehicle and the ground; when the distance between the floor and the ground is greater than a preset value, detecting the environment around the vehicle; determining the optimal throwing direction of the safety hammer based on the environment around the vehicle; and the ejection assembly ejecting the safety hammer along the throwing direction.

[0017] According to the control method of the embodiments of this application, the control method is applied to the safety device of the above embodiments. The safety device includes a safety hammer, a detection component, and an ejection component. The safety hammer is detachably mounted on the floor of the vehicle. The detection component and the ejection component are both installed on the floor. The detection component can detect the distance between the floor and the ground and the environment around the vehicle. The ejection component can eject the safety hammer from the floor according to the distance between the floor and the ground and the environment around the vehicle. In this way, the safety hammer can be released in time when the vehicle rolls over, so that rescuers can use the safety hammer to break windows for rescue operations, effectively improving rescue efficiency.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a safety hammer according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the detection component according to an embodiment of this application; Figure 3 This is an assembly diagram of the fastener and safety hammer according to an embodiment of this application; Figure 4 This is a schematic diagram of the ejection assembly and the floor according to an embodiment of this application; Figure 5 This is a schematic diagram of the ejection assembly and the floor in the triggered state; Figure 6 This is a simplified schematic diagram of the ejection path of the vehicle and safety hammer according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the vehicle and the second inspection piece according to an embodiment of this application; Figure 8 This is a flowchart of a control method according to an embodiment of this application.

[0020] Figure label: 11. Safety hammer; 111. Hammer handle; 1111. Mounting cavity; 1112. Mounting hole; 112. Hammerhead; 1121. Conical part; 113. Light source; 114. Speaker; 115. Control module; 116. Power supply module; 12. Detection component; 121. Mounting base; 122. Rotating component; 123. First detection component; 124. First driving component; 125. Second driving component; 126. Second detection component; 13. Ejection assembly; 131. Support plate; 1311. First magnetic component; 132. Elastic component; 133. Fastener; 20. Vehicle; 21. Floor; 22. Second magnetic component. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] The following is for reference. Figures 1-7 A safety device for a vehicle 20 according to an embodiment of this application is described. The safety device includes a safety hammer 11, a detection assembly 12, and an ejection assembly 13. The safety hammer 11 is detachably mounted to the floor 21 of the vehicle 20. The detection assembly 12 is fixed to the floor 21 and is adapted to detect the distance between the floor 21 and the ground, as well as the environment surrounding the vehicle 20. The ejection assembly 13 is mounted to the floor 21 and is adapted to eject the safety hammer 11 from the floor 21 based on the distance between the floor 21 and the ground, and the environment surrounding the vehicle 20.

[0023] Currently, existing safety hammers are typically located inside vehicles, such as in door storage compartments or beside seats. In a rollover accident, items inside the vehicle often shift and scatter due to the impact, and the safety hammer may fall into a hard-to-find corner. Furthermore, the movement space for occupants is severely limited in a rollover situation, and they may lose mobility due to the impact, making it difficult to find and use the safety hammer inside the vehicle. For rescuers outside the vehicle, the inability to directly observe the location of the safety hammer makes it difficult to quickly retrieve it for window-breaking rescue, severely hindering rescue efficiency. In complex accident scene environments, the difficulty for rescuers to quickly identify the location of the safety hammer further delays the optimal time for window-breaking rescue.

[0024] In response, this application proposes a safety device for a vehicle 20, which can release a safety hammer 11 in a timely manner when the vehicle 20 rolls over, so that rescuers can use the safety hammer 11 to break windows for rescue operations, thereby effectively improving rescue efficiency.

[0025] Specifically, the safety device includes a safety hammer 11, a detection component 12, and an ejection component 13. The safety hammer 11 is detachably mounted on the floor 21 of the vehicle 20. Optionally, the safety hammer 11 and the floor 21 can be detachably connected by snap-fit ​​or plug-in, or by screws or bolts. The safety hammer 11 can be used to break the glass of the vehicle 20 for escape in an emergency. The detection component 12 can be fixedly installed on the floor 21 and can be used to detect the distance between the floor 21 and the ground, as well as the environment around the vehicle 20. It is understood that the detection component 12 is fixedly connected to the floor 21, and the detection component 12 can detect the status of the vehicle 20 and the surrounding environment with the floor 21 as a reference.

[0026] Furthermore, the ejection assembly 13 can be installed on the floor 21, and the ejection assembly 13 can eject the safety hammer 11 from the floor 21 based on the distance between the floor 21 and the ground and the environment around the vehicle 20. The ejection assembly 13 receives the detection signal from the detection assembly 12 and determines whether to trigger the ejection action according to the preset control logic. When the triggering condition is met, the safety hammer 11 is automatically released from the floor 21 and ejected to the target position for rescue personnel to retrieve and perform window breaking rescue. By integrating the detection assembly 12 and the ejection assembly 13 on the floor 21, automatic recognition of the rollover state of the vehicle 20 and directional release of emergency window breaking tools can be achieved. By detecting the distance and environment, the abnormal posture of the vehicle 20 can be determined and the safety hammer 11 can be actively ejected to a position outside the vehicle for easy rescue. Furthermore, by arranging the detection assembly 12 and the ejection assembly 13 together on the floor 21, the positional stability of the floor 21 relative to other components inside the vehicle during a rollover accident can be utilized, enabling the detection assembly 12 to accurately sense changes in the posture of the vehicle 20 and avoiding sensor failure due to vehicle body deformation.

[0027] In short, the safety device of this application embodiment includes a safety hammer 11, a detection component 12, and an ejection component 13. The safety hammer 11 is detachably mounted on the floor 21 of the vehicle 20. Both the detection component 12 and the ejection component 13 are installed on the floor 21. The detection component 12 can detect the distance between the floor 21 and the ground and the environment around the vehicle 20. The ejection component 13 can eject the safety hammer 11 from the floor 21 according to the distance between the floor 21 and the ground and the environment around the vehicle 20. Thus, the safety hammer 11 can be released in time when the vehicle 20 rolls over, so that rescuers can use the safety hammer 11 to break windows for rescue operations, effectively improving rescue efficiency.

[0028] like Figure 4As shown (only one elastic element 132 is shown), in some embodiments of this application, the ejection assembly 13 may include a support plate 131, an elastic element 132, and a fixing element 133. The support plate 131 is spaced apart from the floor 21, meaning that the support plate 131 and the floor 21 maintain a preset distance. The surface of the support plate 131 away from the floor 21 abuts against the safety hammer 11. It is understood that when the vehicle 20 rolls over or overturns, the support plate 131 can support the safety hammer 11 and provide support force for the safety hammer 11. The elastic element 132 can be connected between the support plate 131 and the floor 21. The elastic element 132 is in a compressed state when not triggered, thereby accumulating elastic potential energy. When triggered, it releases elastic force to push the support plate 131 to move away from the floor 21. The fixing element 133 can be inserted through the safety hammer 11 and connected to the floor 21. It is understood that the fixing element 133 can penetrate the safety hammer 11 along the thickness direction and form a fixed connection with the floor 21, thereby locking the safety hammer 11 in a predetermined position on the floor 21. The fastener 133 can selectively break to disengage from the safety hammer 11 and the floor 21. That is, in the triggered state, the fastener 133 can actively break according to the control command, thereby releasing the lock on the safety hammer 11 and allowing the elastic member 132 to eject the safety hammer 11.

[0029] Furthermore, the spacing between the support plate 131 and the floor 21 provides space for the compression deformation of the elastic element 132, allowing the elastic element 132 to be compressed to its limit position to store maximum elastic force. After the fixing element 133 breaks, all the stored energy is instantly converted into the kinetic energy of the safety hammer 11, ensuring that the safety hammer 11 can be ejected a sufficient distance to reach the rescue position outside the vehicle.

[0030] In some embodiments, the fastener 133 can be configured as a blasting bolt, with an internal electric detonator that ignites a gas-generating agent upon receiving a trigger signal, causing the bolt to break along a pre-fracture groove. The fastener 133 can also be configured as an electromagnetic locking pin, including a housing and a retractable locking pin. When the electromagnetic coil is energized, the locking pin extends to lock the safety hammer 11; after de-energization, the locking pin retracts under the action of a return spring to unlock. The fastener 133 can also be configured as a thermosetting component, with its locking portion made of a low-melting-point alloy. When the heating element is energized, the locking portion melts. The fastener 133 can also be configured as a pin with a pre-formed annular fracture groove, where the cross-sectional area is smaller than other parts, allowing it to fracture preferentially under the action of ejection force. The fastener 133 can also be configured as a brittle material pin made of alumina ceramic or powder metallurgy material, undergoing brittle fracture when its strength limit is exceeded. The fastener 133 can also be configured as a shearing pin, which is sheared along a weak surface under the upward shearing force of the safety hammer 11.

[0031] like Figure 4As shown, in some embodiments of this application, the support plate 131 is provided with a first magnetic element 1311, and the floor 21 is provided with a second magnetic element 22 that magnetically engages with the first magnetic element 1311. There are multiple first magnetic elements 1311 arranged at intervals along the circumference of the safety hammer 11, and multiple second magnetic elements 22 corresponding to multiple first magnetic elements 1311. By selectively energizing at least one second magnetic element 22, the support plate 131 can be controlled to rotate relative to the floor 21 in the horizontal plane, thereby adjusting the throwing direction of the safety hammer 11. It is understandable that there are multiple elastic elements 132, and these multiple elastic elements 132 are arranged at intervals along the circumference of the safety hammer 11. When the second magnetic element 22 is energized, under the influence of magnetic force, the first magnetic element 1311 will receive the magnetic force of the second magnetic element 22. The first magnetic element 1311 drives the support plate 131 to move towards the floor 21. At this time, the elastic element 132 can be compressed. When it is compressed to a certain position, the fixing element 133 can be broken. The second magnetic element 22 is de-energized, and the elastic element 132 provides a force to the support plate 131 due to its restoration, causing the support plate 131 to move, thereby popping out the safety hammer 11.

[0032] In some embodiments, the first magnetic element 1311 can be constructed as a permanent magnet, and the second magnetic element 22 can be constructed as an energized coil. Multiple permanent magnets and multiple energized coils are arranged at intervals along the circumference of the safety hammer 11, with the permanent magnets and energized coils facing each other in a one-to-one correspondence. When the throwing direction of the safety hammer 11 needs to be adjusted, the controller energizes the energized coil corresponding to the optimal throwing position identified by the detection component 12. The energized coil generates a magnetic attraction force with the opposing permanent magnet, causing the support plate 131 to rotate relative to the floor 21 under this magnetic attraction force, and the safety hammer 11 rotates synchronously with the support plate 131. When the safety hammer 11 rotates to the target angle, the fixing member 133 breaks, and the elastic member 132 releases its elastic force, ejecting the safety hammer 11 along the target direction. The first magnetic element 1311 can also be constructed as an electromagnet, and the second magnetic element 22 as a permanent magnet, or both the first magnetic element 1311 and the second magnetic element 22 can be constructed as electromagnets, which can also achieve the aforementioned direction adjustment function.

[0033] like Figure 5As shown, in a specific scenario, when the detection component 12 identifies the rear of the vehicle 20 as the optimal throwing position, the controller energizes the corresponding coil behind the vehicle 20. This energized coil generates a magnetic attraction with the opposing permanent magnet. Under this magnetic attraction, the support plate 131 rotates, and the safety hammer 11 rotates synchronously with the support plate 131 to a rearward-facing position. At this point, the fixing member 133 breaks, and the elastic member 132 releases its elastic force, ejecting the safety hammer 11 rearward. Optionally, the number of the multiple first magnetic members 1311 and the multiple second magnetic members 22 are both four. The four first magnetic members 1311 and the four second magnetic members 22 are evenly spaced along the circumference of the safety hammer 11, corresponding to the front, rear, left, and right directions of the vehicle 20, respectively. By selectively energizing the four coils, the safety hammer 11 can be controlled to eject in the front, rear, left, or right directions, covering the main directions around the vehicle 20.

[0034] In some embodiments of this application, the ejection assembly 13 further includes a force sensor. The force sensor is disposed on the elastic member 132 and adapted to detect the current elastic force of the elastic member 132. Specifically, the force sensor is disposed between the elastic member 132 and the support plate 131 or between the elastic member 132 and the floor 21, for real-time detection of the current elastic force of the elastic member 132. In some embodiments, the force sensor is electrically or signal-connected to the vehicle-mounted voice playback control device. Under normal conditions, the elastic member 132 is compressed between the support plate 131 and the floor 21, and the elastic force detected by the force sensor is a first preset value. When the ejection assembly 13 is triggered, after the fixing member 133 breaks, the elastic member 132 releases its elastic potential energy and ejects the safety hammer 11. The support plate 131 is released from the pressure of the elastic member 132 and becomes free, and the elastic force detected by the force sensor becomes a second preset value. When the force sensor detects that the spring force value changes from the first preset value to the second preset value, the safety hammer 11 has been successfully ejected. The force sensor transmits the spring force value change signal to the vehicle voice playback control device. After receiving the signal from the force sensor, the vehicle voice playback control device controls the external speaker 114 to play the preset voice prompt information, that is, to notify the rescue personnel that the safety hammer 11 has been ejected, which helps to improve the rescue efficiency.

[0035] In some embodiments, the force sensor may be configured as a pressure sensor, a strain gauge sensor, or a piezoresistive sensor. The force sensor may be fixed to the end of the elastic member 132 or at the connection between the elastic member 132 and the support plate 131 by means of bonding, threaded connection, or snap-fit.

[0036] like Figure 1As shown, in some embodiments of this application, the safety hammer 11 includes a handle 111 and a hammer head 112. The handle 111 has a mounting hole 1112 extending radially through it, i.e., the mounting hole 1112 extends from one side surface of the handle 111 to the other side surface. The mounting hole 1112 is used to install a fixing member 133, thereby achieving a detachable connection between the safety hammer 11 and the floor 21. The fixing member 133 passes through the mounting hole 1112 through the handle 111, fixing the handle 111 to the floor 21. The hammer head 112 is fixed to at least one end of the handle 111 along its extending direction, i.e., the hammer head 112 can be provided at one or both ends of the handle 111, so that the safety hammer 11 can be used directly regardless of which end faces upward after landing, reducing the operational difficulty for rescuers to identify and retrieve it. The hammerhead 112 has a tapered portion 1121 at its end. The tip of the tapered portion 1121 is used to generate concentrated stress when striking the glass, reducing the impact force required to break the window, making it easier to quickly shatter the car window glass and improve the efficiency of breaking the window.

[0037] like Figure 1 As shown, in some embodiments of this application, a mounting cavity 1111 is formed within the hammer handle 111. The safety hammer 11 also includes a signal warning element, which can be installed within the mounting cavity 1111 and can send signals to the outside through the hammer handle 111. Specifically, the signal warning element may include a light source 113, a speaker 114, a control module 115, and a power module 116. The light source 113 and the speaker 114 are electrically connected to the control module 115 and the power module 116, respectively. The control module 115 is used to control the light source 113 to generate intermittent light signals and to control the speaker 114 to generate sound signals. The power module 116 is used to supply power to the light source 113, the speaker 114, and the control module 115. The hammer handle 111 may have a light-transmitting hole or a light-transmitting hole to allow the light source 113 to emit light to the outside, and a sound-emitting hole may be opened on the hammer handle 111 to allow the speaker 114 to transmit sound to the outside. In some embodiments, after the safety hammer 11 is ejected by the ejection assembly 13 and detached from the floor 21, the control module 115 automatically activates the light source 113 and the speaker 114. The light source 113 emits an intermittent flashing signal, and the speaker 114 emits a buzzing signal to alert rescuers to the location of the safety hammer 11. By integrating the signal warning element inside the hammer handle 111 of the safety hammer 11, the safety hammer 11 can actively emit an audible and visual signal after being ejected, facilitating rescuers to quickly locate the safety hammer 11.

[0038] like Figure 2As shown, in some embodiments of this application, the detection component 12 includes a mounting base 121 and a rotating member 122. The mounting base 121 is disposed on the floor 21 and can be selectively moved toward or away from the floor 21. The rotating member 122 is disposed on the mounting base 121 and can be selectively rotated relative to the mounting base 121. It is understood that the rotating member 122 has a rotational function relative to the mounting base 121 and can rotate about a predetermined axis on the mounting base 121. A first detection member 123 is fixedly provided at the end of the rotating member 122. The first detection member 123 is fixedly connected to the end of the rotating member 122 away from the mounting base 121. The first detection member 123 is suitable for detecting the environment around the vehicle 20. The first detection member 123 can be constructed as a sensor such as a camera, millimeter-wave radar, or lidar. Through the lifting and lowering movement of the mounting base 121 and the rotational movement of the rotating component 122, the first detection component 123 can flexibly adjust the detection position and detection angle in three-dimensional space, realize all-round perception of the environment around the vehicle 20, improve the accuracy and coverage of detection, realize the rotation and up-down movement of the first detection component 123, observe the environment around the vehicle 20 and determine the best hammer throwing position.

[0039] In some embodiments, when the vehicle 20 is in normal driving condition, the mounting base 121 retracts into the floor 21 or close to the surface of the floor 21, and the first detection element 123 does not protrude from the surface of the floor 21 to avoid affecting the normal activities of the driver and passengers and to prevent damage from collisions with the surrounding environment during driving. When a rollover accident is detected in the vehicle 20, the mounting base 121 automatically extends and the rotating element 122 automatically rotates to adjust the first detection element 123 to the optimal detection position, so that it can observe the environment around the vehicle 20 and determine the optimal throwing hammer position, thereby determining the launching direction of the ejection assembly 13.

[0040] like Figure 2 As shown, in some embodiments of this application, the detection component 12 further includes a first driving member 124 and a second driving member 125. The first driving member 124 is disposed on the floor 21 and is convexly connected to the mounting base 121. The first driving member 124 can be used to drive the mounting base 121 to move toward or away from the floor 21. The first driving member 124 can be constructed as a linear motor, electric push rod, or cylinder, etc., to provide driving force for the lifting and lowering movement of the mounting base 121. The second driving member 125 is disposed on the mounting base 121 and is convexly connected to the rotating member 122. The second driving member 125 can drive the rotating member 122 to rotate relative to the mounting base 121. The second driving member 125 can be constructed as a rotary motor or servo motor, etc., to provide driving force for the rotational movement of the rotating member 122.

[0041] like Figure 7As shown, in some embodiments of this application, the detection component 12 further includes a second detection element 126. The second detection element 126 can be fixedly disposed on at least one of the floor 21 and the mounting base 121, that is, the second detection element 126 can be disposed on the floor 21 or the mounting base 121. The second detection element 126 can be used to detect the distance between the floor 21 and the ground. Optionally, the second detection element 126 can be constructed as an ultrasonic distance sensor, a laser rangefinder, or an infrared rangefinder, etc. The second detection element 126 is used to acquire the vertical distance information between the floor 21 and the ground in real time. This distance information is an important parameter for determining whether the vehicle 20 has rolled over or overturned.

[0042] In some embodiments, when the vehicle 20 is in normal driving condition, the distance between the floor 21 and the ground is the ground clearance of the vehicle 20. When the vehicle 20 experiences a rollover or overturning accident, the vehicle 20's posture changes drastically, and the distance between the floor 21 and the ground changes. When the detected distance value is close to the ground clearance, the vehicle 20 is determined to be in normal driving condition; when the detected distance value is much greater than the ground clearance, the vehicle 20 is determined to be in a rollover or overturning state. When the vehicle 20 is determined to be in a rollover or overturning state, the controller activates the ejection assembly 13 to eject the safety hammer 11 from the floor 21.

[0043] The following is for reference. Figure 8 The control method of embodiments of this application is described.

[0044] The control method according to the embodiments of this application is applied to the safety device of the above embodiments. The control method includes: detecting the distance between the vehicle floor and the ground; when the distance between the floor and the ground is greater than a preset value, detecting the environment around the vehicle; determining the optimal throwing direction of the safety hammer based on the environment around the vehicle; and ejecting the safety hammer along the throwing direction using an ejection assembly.

[0045] Specifically, the control method includes: S1, detecting the distance between the vehicle's floor and the ground. A second detection element detects the distance between the floor and the ground. When the detected distance value is less than or equal to a preset value, the vehicle is in normal driving condition. When the detected distance value is greater than the preset value, the vehicle may be in a rollover or overturning state. The preset value can be the maximum distance between the floor and the ground under normal driving conditions.

[0046] Optionally, before step S1, the vehicle speed can be tracked in real time, and it can be determined whether the vehicle speed is zero. When the vehicle speed is determined to be zero, the control program of the safety device starts and enters the working state. Optionally, the vehicle speed signal can be obtained through the vehicle's CAN bus or hard-wired signal. Using zero vehicle speed as a prerequisite for the safety device to start can prevent false triggering due to road bumps or other interference during normal vehicle driving.

[0047] S2. When the distance between the platform and the ground exceeds a preset value, the environment around the vehicle is detected. After the detected distance value exceeds the preset value, the control program controls the first and second drive components to start working, driving the mounting base to lift and move and the rotating component to rotate, moving the first detection component to the critical detection position.

[0048] S3. Determine the optimal throwing direction for the safety hammer based on the surrounding environment of the vehicle. After the first detection component reaches the predetermined position, it begins a 360° surround view of the vehicle's surrounding environment, collecting environmental information such as obstacles, pedestrians, and terrain in all directions around the vehicle. The control program processes and analyzes the collected environmental information using a specific algorithm to identify an unobstructed, obstacle-free, and safe location around the vehicle, and determines this location as the optimal throwing direction for the safety hammer. In some embodiments, identifying the optimal throwing direction can begin after the first detection component reaches the predetermined position, starting a 360° surround view to collect environmental information around the vehicle. The control program processes the collected environmental information and performs the following judgments in sequence: First, it identifies whether there are obstacles such as walls, trees, or guardrails in each direction around the vehicle. If an obstacle exists in a certain direction and the distance is less than a preset safety value, that direction is excluded. Second, it uses an image recognition algorithm to identify whether there are pedestrians or animals in each direction. If so, that direction is marked as a prohibited throwing direction. Third, it evaluates the ground flatness of the remaining candidate directions, excluding unstable areas with large slopes. Finally, from the candidate directions that meet the criteria of being unobstructed, free of obstacles, free of pedestrians, and with a flat ground, the direction furthest from the obstacle, with the flattest ground, and facing away from the oncoming traffic is selected as the optimal throwing direction for the safety hammer. If none of the directions meet the conditions, the ejection assembly is controlled to launch the hammer upwards at a large elevation angle, allowing it to cross surrounding obstacles.

[0049] S4. The ejection assembly ejects the safety hammer along the throwing direction. After the throwing angle is adjusted to the correct position, the control program controls the fixing component to break. After the fixing component breaks, it releases the lock on the safety hammer, and the elastic component releases its elastic potential energy, pushing the support plate and the safety hammer to eject along the predetermined direction. The safety hammer is then launched at the optimal throwing direction at the set angle.

[0050] Furthermore, the built-in signal warning device automatically activates the safety hammer the instant it is launched. Specifically, the control module of the signal warning device controls a light source to emit a continuous flashing light signal, while simultaneously controlling a speaker to emit a buzzer warning sound. The light and sound signals together indicate the location of the safety hammer to rescuers, facilitating its rapid discovery and retrieval in complex accident scene environments. A force sensor records the changes in the elastic force of the elastic element in real time, and uses this force change signal as a trigger signal to the vehicle-mounted voice broadcast control device. Upon receiving the trigger signal, the vehicle-mounted voice broadcast control device controls the external speaker to broadcast a voice announcement. The voice announcement may include confirmation that the safety hammer has been released and a descriptive description of the hammer's features, enabling rescuers to locate the appropriate rescue tool based on the voice prompts as quickly as possible.

[0051] In short, the control method of this application embodiment is applied to the safety device of the above embodiment. The safety device includes a safety hammer, a detection component, and an ejection component. The safety hammer is detachably mounted on the floor of the vehicle. Both the detection component and the ejection component are installed on the floor. The detection component can detect the distance between the floor and the ground and the environment around the vehicle. The ejection component can eject the safety hammer from the floor according to the distance between the floor and the ground and the environment around the vehicle. This allows the safety hammer to be released in a timely manner when the vehicle rolls over, so that rescuers can use the safety hammer to break windows for rescue operations, effectively improving rescue efficiency.

[0052] Based on the same inventive concept, another embodiment of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements all the steps of the above-described anti-color-crossing cleaning method for cleaning equipment, such as detecting the distance between the vehicle floor and the ground; when the distance between the floor and the ground is greater than a preset value, detecting the environment around the vehicle; determining the optimal throwing direction of the safety hammer based on the environment around the vehicle; and ejecting the safety hammer along the throwing direction using an ejection assembly.

[0053] It is understood that the refined and extended functions that the computer program can execute can be referred to the description of the above embodiments.

[0054] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0055] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of the embodiments of the present invention according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0056] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the traffic auditing method described in various embodiments or some parts of embodiments.

[0057] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0058] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0059] In the description of this application, "multiple" means two or more.

[0060] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0061] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A safety device for a vehicle, characterized in that, include: Safety hammer (11), which is detachably mounted on the floor (21) of the vehicle (20). A detection component (12) is fixed to the floor (21) and is adapted to detect the distance between the floor (21) and the ground and the environment around the vehicle (20); An ejection assembly (13) is mounted on the floor (21) and is adapted to eject the safety hammer (11) from the floor (21) based on the distance between the floor (21) and the ground and the environment around the vehicle (20).

2. The safety device for a vehicle according to claim 1, characterized in that, The ejection assembly (13) includes: A support plate (131) is provided at a distance from the floor (21), and the surface of the support plate (131) away from the floor (21) abuts against the safety hammer (11); An elastic element (132) is connected between the support plate (131) and the floor (21); A fastener (133) is inserted through the safety hammer (11) and connected to the floor (21), the fastener (133) being selectively breakable to detach from the safety hammer (11) and the floor (21).

3. The safety device for a vehicle according to claim 2, characterized in that, The support plate (131) is provided with a first magnetic element (1311), and the floor (21) is provided with a second magnetic element (22) that magnetically engages with the first magnetic element (1311). The first magnetic element (1311) is a plurality of the first magnetic elements (1311) and the plurality of the first magnetic elements (1311) are arranged at intervals along the circumference of the safety hammer (11). The second magnetic element (22) is a plurality of the second magnetic elements (22) and the plurality of the second magnetic elements (22) are arranged corresponding to the plurality of the first magnetic elements (1311). The elastic element (132) is a plurality of the elastic elements (132) and the plurality of the elastic elements (132) are arranged at intervals along the circumference of the safety hammer (11).

4. The safety device for a vehicle according to claim 2, characterized in that, The ejection assembly (13) also includes: A force sensor is disposed on the elastic element (132) and adapted to detect the current elastic force of the elastic element (132).

5. The safety device for a vehicle according to claim 2, characterized in that, The safety hammer (11) includes: Hammer handle (111), wherein the hammer handle (111) has a mounting hole (1112) that extends radially through it, and the fastener (133) passes through the mounting hole (1112). Hammer head (112), the hammer head (112) is fixed to at least one end of the hammer handle (111) along its extension direction, and the end of the hammer head (112) is formed with a tapered portion (1121).

6. The safety device for a vehicle according to claim 5, characterized in that, The hammer handle (111) has a mounting cavity (1111) formed inside, and the safety hammer (11) further includes: A signal warning device, which is installed in the mounting cavity (1111) and adapted to send a signal to the outside through the hammer handle (111).

7. The safety device for a vehicle according to claim 1, characterized in that, The detection component (12) includes: Mounting base (121), the mounting base (121) is disposed on the floor (21), and the mounting base (121) is selectively movable toward or away from the floor (21); A rotating component (122) is disposed on the mounting base (121) and the rotating component (122) can be selectively rotated relative to the mounting base (121). A first detection component (123) is fixedly provided at the end of the rotating component (122) and the first detection component (123) is adapted to detect the environment around the vehicle (20).

8. The safety device for a vehicle according to claim 7, characterized in that, The detection component (12) further includes: A first driving member (124) is disposed on the floor (21) and is pulsatorically connected to the mounting base (121). The first driving member (124) is adapted to drive the mounting base (121) to move toward or away from the floor (21). The second driving member (125) is disposed on the mounting base (121) and is connected to the rotating member (122) in a transmission manner. The second driving member (125) is adapted to drive the rotating member (122) to rotate relative to the mounting base (121).

9. The safety device for a vehicle according to claim 7, characterized in that, The detection component (12) further includes: A second detection element (126) is fixed to at least one of the floor (21) and the mounting base (121), and the second detection element (126) is adapted to detect the distance between the floor (21) and the ground.

10. A control method, characterized in that, The control method is applied to the safety device as described in any one of claims 1-9, and the control method includes: Detect the distance between the vehicle's floor and the ground; When the distance between the floor and the ground is greater than a preset value, the environment around the vehicle is detected; Determine the optimal throwing direction for the safety hammer based on the surrounding environment of the vehicle; The ejection assembly ejects the safety hammer along the throwing direction.

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