Control methods, devices, equipment and storage media for safe travel backpacks

Abstract

This invention belongs to the field of electronics and safety technology, and discloses a control method, device, equipment, and storage medium for a safe travel backpack. The invention acquires detection signals from a laser array radar at a preset detection frequency; analyzes the detection signals to obtain vehicle information within the detection range, including vehicle type, driving direction, and driving speed; determines the intention of the driving direction and speed to ascertain the danger level of the vehicle; generates a warning signal based on the danger level; and the safe travel backpack performs corresponding control actions based on the warning signal. By detecting surrounding vehicles through the laser array radar, the invention can determine the form and movement of surrounding vehicles, predict their driving trajectories, and assess whether danger will occur. If danger is imminent, the invention can proactively take appropriate actions to avoid it, thereby ensuring travel safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic and security technology, and particularly relates to a control method, device and equipment of a safe travel bag and a storage medium. BACKGROUND

[0002] At present, the safety backpack designed for students can protect the students after the collision, but this protection measure is taken after the students have been collided, and the students have been injured due to the collision from the perspective of the students, so this method can reduce the injury of the students due to the collision to a certain extent, but cannot predict the danger in advance, so the life safety of the students is still threatened.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a control method, device and equipment of a safe travel bag and a storage medium, which aims to solve the technical problem that the prior art cannot predict the danger.

[0005] To achieve the above purpose, the present application provides a control method of a safe travel bag, which comprises the following steps:

[0006] obtaining a detection signal of the laser array radar at a preset detection frequency;

[0007] obtaining vehicle information of a vehicle in the detection range according to the detection signal, wherein the vehicle information comprises a vehicle type, a driving direction and a driving speed;

[0008] judging the intention of the driving direction and the driving speed to determine a danger level of the vehicle;

[0009] generating a warning signal according to the danger level, and the safe travel bag performs a corresponding control action according to the warning signal.

[0010] Optionally, the obtaining of the vehicle information of the vehicle in the detection range according to the detection signal comprises:

[0011] obtaining profile information of the vehicle in the detection range according to the detection signal;

[0012] obtaining a vehicle width and a vehicle height of the vehicle according to the detection signal;

[0013] obtaining the vehicle type according to the profile information, the vehicle width and the vehicle height of the vehicle.

[0014] Optionally, the vehicle information of the vehicle within the detection range is obtained according to the detection signal, and the vehicle information comprises:

[0015] The detection distance between the safety travel bag and the vehicle is obtained according to the detection signal.

[0016] The driving direction of the vehicle is obtained according to a plurality of continuous detection signals.

[0017] The driving speed of the vehicle is obtained according to a plurality of continuous detection distances.

[0018] Optionally, the driving direction and the driving speed are judged according to the intention, and the danger level of the vehicle is determined, comprising:

[0019] When the detection distance is less than the early warning distance and the driving speed is greater than the early warning speed, the danger level is updated to an early warning level.

[0020] When the detection distance is less than the safety distance and the driving speed is greater than the safety speed, the danger level is updated to a protection level.

[0021] Optionally, the safety travel bag further comprises a stepping motor and a gas generator, the early warning signal is generated according to the danger level, and the safety travel bag performs corresponding control actions according to the early warning signal, comprising:

[0022] When the danger level is an early warning level, a first early warning signal is generated according to the driving direction and the early warning level.

[0023] When the danger level is a protection level, a second early warning signal is generated according to the driving direction and the protection level.

[0024] When the safety travel bag receives the first early warning signal, a first control instruction is sent to the stepping motor according to the first early warning signal, so that the stepping motor tightens the corresponding strap according to the first control instruction.

[0025] When the safety travel bag receives the second early warning signal, a second control instruction is sent to the gas generator according to the second early warning signal, so that the gas generator generates gas according to the second control instruction to pop up a safety airbag.

[0026] Optionally, the safety travel bag comprises a GPS, and when the safety travel bag receives the second early warning signal, a second control instruction is sent to the gas generator according to the second early warning signal, so that the gas generator generates gas according to the second control instruction to pop up a safety airbag, and further comprising:

[0027] Acquire the GPS signal, determine the current position information;

[0028] Send alarm information according to the position information.

[0029] Optionally, before acquiring the detection signal of the laser array radar at the preset detection frequency, the method further comprises:

[0030] Detect the opening and closing state of the safety travel backpack strap, and when the opening and closing state is the closed state, start the detection function of the laser array radar.

[0031] In addition, to achieve the above-mentioned purpose, the application further provides a safety travel backpack control device, which comprises:

[0032] A radar detection module is configured to acquire the detection signal of the laser array radar at a preset detection frequency.

[0033] A signal analysis module is configured to analyze the vehicle information of the vehicle in the detection range according to the detection signal, wherein the vehicle information comprises the vehicle type, the driving direction and the driving speed.

[0034] A danger judgment module is configured to judge the intention of the driving direction and the driving speed, and determine the danger level of the vehicle.

[0035] A danger warning module is configured to generate a warning signal according to the danger level, and the safety travel backpack performs corresponding control actions according to the warning signal.

[0036] In addition, to achieve the above-mentioned purpose, the application further provides a safety travel backpack control device, which comprises a memory, a processor and a safety travel backpack control program stored in the memory and executable on the processor, wherein the safety travel backpack control program is configured to implement the steps of the safety travel backpack control method as described above.

[0037] In addition, to achieve the above-mentioned purpose, the application further provides a storage medium, wherein the storage medium stores a safety travel backpack control program, and the safety travel backpack control program is executed by a processor to implement the steps of the safety travel backpack control method as described above.

[0038] The application obtains the detection signal of the laser array radar at a preset detection frequency; vehicle information of a vehicle in a detection range is obtained by analyzing the detection signal, the vehicle information including vehicle type, driving direction and driving speed; intention judgment is performed on the driving direction and the driving speed to determine the danger level of the vehicle; a warning signal is generated according to the danger level, and the safety travel bag performs corresponding control actions according to the warning signal; through the detection of surrounding vehicles by the laser array radar, the trend of the surrounding vehicles can be determined, the driving track of the vehicle is predicted, and it is judged whether danger will occur; when danger will occur, corresponding actions can be actively taken to avoid danger, thereby ensuring travel safety. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a control device structure diagram of the safety travel bag related to the hardware running environment of the embodiment of the application.

[0040] Figure 2 is a flow diagram of the control method of the safety travel bag of the first embodiment of the application.

[0041] Figure 3 is a safety bag diagram of the control method of the safety travel bag of the embodiment of the application.

[0042] Figure 4 is a flow diagram of the control method of the safety travel bag of the second embodiment of the application.

[0043] Figure 5 is a vehicle height and width calculation diagram of the control method of the safety travel bag of the embodiment of the application.

[0044] Figure 6 is a structure block diagram of the control device of the safety travel bag of the first embodiment of the application.

[0045] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are intended to explain the application, but not to limit the application.

[0047] Reference Figure 1 , Figure 1 is a control device structure diagram of the safety travel bag related to the hardware running environment of the embodiment of the application.

[0048] As Figure 1As shown, the control device of the safe travel bag can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between the components. The user interface 1003 can include a display, an input unit such as a keyboard, and can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM) memory, or a stable non-volatile memory (NVM) such as a disk memory. The memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art can understand that Figure 1 The structure shown in the figure does not constitute a limitation on the control device of the safe travel bag, and can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0050] As Figure 1 As shown, the memory 1005 as a storage medium can include an operating system, a network communication module, a user interface module, and a control program of the safe travel bag.

[0051] In Figure 1 As shown in the control device of the safe travel bag, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the control device of the safe travel bag can be arranged in the control device of the safe travel bag. The control device of the safe travel bag calls the control program of the safe travel bag stored in the memory 1005 through the processor 1001, and executes the control method of the safe travel bag provided by the embodiment of the application.

[0052] The embodiment of the application provides a control method of a safe travel bag, which refers to Figure 2 , Figure 2 The flowchart of a first embodiment of the control method of the safe travel bag of the application.

[0053] In this embodiment, the control method of the safe travel bag includes the following steps:

[0054] Step S10: obtaining the detection signal of the laser array radar at a preset detection frequency.

[0055] It should be noted that the execution subject of the embodiment is the control device of the safe travel bag, wherein the control device of the safe travel bag has functions of data processing, data communication, program running, etc. The control device of the safe travel bag can be an integrated controller, a control computer or other devices with similar functions, and the embodiment does not limit this.

[0056] It should be noted that the preset detection frequency is a detection frequency preset when the control device of the safe travel bag is designed, wherein the greater the detection frequency, the more accurate the detected information. Since the laser array radar needs to be powered by a battery, in order to ensure that the laser array radar can work continuously, it is necessary to set it reasonably according to the actual situation. In addition, the preset detection frequency can be preset with several different frequencies for selection, and the embodiment does not limit the preset detection frequency.

[0057] It can be understood that the control device of the safe travel bag is applied to the safe travel bag, which can include a transmitter 100 and a receiver 101 paired with the transmitter 100, a stepping motor 200, a laser array radar 300, a safety airbag 400, a warning light 500, and a reference Figure 3 , Figure 3 The structure of the safe travel bag of the present application is shown in the figure, wherein the transmitter 100 is placed in the safe travel bag for transmitting signals of a specific frequency; the receiver 101 can be made into a pendant of the bag for receiving signals of a specific frequency emitted by the transmitter 100 paired therewith; the stepping motor 200 is arranged below the two straps of the safe travel bag respectively for controlling the contraction of the corresponding straps; the laser array radar 300 is arranged inside the safe travel bag for transmitting or receiving radar signals; the safety airbag 400 can be arranged at the back of the safe travel bag, one in the middle or one on each side of the bag, and the safety airbag is connected with a gas generator; the warning light 500 is arranged at the back of the safe travel bag, which can be of any shape and emit light of a specific color such as red, yellow, etc. for warning the rear vehicles and pedestrians to avoid.

[0058] In a specific implementation, the laser array radar can emit and receive radar detection signals. The laser array radar can emit radar detection signals to the surroundings at a fixed preset detection frequency, receive the returned radar detection signals, and store the received signals.

[0059] Step S20: obtaining vehicle information of the vehicle in the detection range according to the analysis of the detection signal, wherein the vehicle information includes vehicle type, driving direction and driving speed.

[0060] It should be noted that the detection range refers to the detection signal radiated to all directions with the self as the center, and the coverage range of the detection signal constitutes the detection range. The vehicle information refers to the attributes of the vehicle, including the type of the vehicle, the driving direction of the vehicle and the driving speed of the vehicle.

[0061] It can be understood that the laser array radar emits a signal by using visible light and near-infrared light, and the signal is collected by a receiving system after being reflected by a target. The distance of the target is determined by measuring the running time of the reflected light. Since the reflected light collides with the object and is reflected, the profile of the detected object can also be obtained according to the reflected light.

[0062] In a specific implementation, the laser array radar can emit radar detection signals at a fixed frequency in all directions. After the detection signal collides with an object, the detection signal will be bounced back with part of the signal. At the same time, when the signal is emitted, timing is started to record the time when the detection signal bounces back. In addition, when the detection signal collides with the object, a part of the detection signal will be absorbed by the object, thereby affecting the energy of the detection signal. Therefore, when the reflected detection signal is received, the profile and type of the object can be determined according to the fluctuation of the energy and the returning time. When a moving object is detected, the moving object can be pre-marked, and the object with the pre-mark can be tracked and detected in subsequent detection. When the laser array radar receives the reflected detection signal, the distance of the object can be determined according to the reflected detection signal. The profile of the object, including the height and width of the object, can be determined according to the energy and range of the detection signal. If a vehicle is detected, the type of the vehicle can be obtained according to the height and width of the object. The driving direction and driving speed of the vehicle can be determined according to the continuous reflected detection signal.

[0063] Step S30: performing intention judgment on the driving direction and the driving speed to determine the danger level of the vehicle.

[0064] It should be noted that the intention refers to the prediction of the vehicle motion trajectory, refers to the position reached by the vehicle driver if he does not make adaptive avoidance action within a certain time and the position relationship between the vehicle and itself, and the danger level refers to the dangerous situation caused by the vehicle to the user of the safety travel bag under the intention, including collision, rubbing, proximity and safety states, wherein collision refers to the user and the vehicle have a head-on collision, which is the greatest threat to human life safety, rubbing refers to the user and the vehicle have a scratch, which will threaten the personal safety to a certain extent, proximity refers to no direct contact with the user but too close to the user, which will have a certain impact on the user, and the safe state refers to the state that there is no above-mentioned dangerous situation between the vehicle and the user.

[0065] In a specific implementation, first, a preliminary judgment can be made according to the driving direction of the vehicle. The driving direction of the vehicle can be roughly divided into two driving directions of approaching and moving away, and the dangerous degree of the vehicle to the user of the safety travel bag can be judged. When the vehicle moves away from the user, the danger level is determined to be safe. If the driving direction is the approaching direction, the driving direction of the vehicle needs to be further judged, the driving direction, the speed and the distance from the vehicle are accurately judged, and then the danger level is comprehensively judged.

[0066] Step S40: generating a warning signal according to the danger level, and the safety travel bag performs corresponding control action according to the warning signal.

[0067] It should be noted that the warning signal prompts the behavior action of the bag user according to the danger level, which can include a belt contraction signal, a gas generation signal, etc. The warning signal can correspond to various control actions, such as the belt contraction signal can control the stepping motor to contract the corresponding belt, the gas generation signal can control the gas generator to generate gas to fill the safety airbag and pop out the safety airbag, obtain the GPS signal and alarm, etc.

[0068] In a specific implementation, when the vehicle is approaching the user of the backpack, if the vehicle will not collide with the user of the backpack, i.e. the danger level is close, the safe travel backpack can generate a strap contraction signal according to the direction of the vehicle, the strap contraction signal including the relative direction of the vehicle and the user, and the strap contraction information needed to be contracted according to the relative direction, for example, a left side vehicle, the strap control signal will contain the information of "left side", at this time, the step motor of the left side strap can be controlled by the strap contraction signal to tighten the left side strap, to prompt the user of the backpack to pay attention to the left side vehicle and avoid it. Similarly, if there is a vehicle on the right side, the signal for controlling the contraction of the right side strap can be generated in the same way to remind the user of the backpack to pay attention to the right side vehicle and avoid it. If the vehicle will contact the user of the backpack, such as scratch or collision, the safe travel backpack will generate a gas generation signal according to the danger level, if the safe travel backpack has a plurality of safety airbags, the gas generation signal can also contain direction information, the direction being the relative direction of the vehicle to the user of the backpack, the gas generation signal can control the gas generation device in the same side to inflate the safety airbag, and when the inflation is completed, the safety airbag wraps the user of the backpack to reduce the injury degree of the user of the backpack.

[0069] Further, before obtaining the detection signal of the laser array radar at the preset detection frequency, the method further comprises:

[0070] Detecting the opening and closing state of the strap of the safe travel backpack, and starting the detection function of the laser array radar when the opening and closing state is the closed state.

[0071] It should be noted that the strap of the safe travel backpack is also used to start the safety detection function, and whether the surrounding environment needs to be detected is determined according to the opening and closing state of the strap.

[0072] In a specific implementation, the single-chip microcomputer of the safe travel backpack, the single-chip microcomputer is designed with a total control program and a plurality of sub-programs, the total program can determine whether to work according to the opening and closing of the strap, the sub-programs correspond to respective control functions, the total program can control the sub-programs, the total program can be started when the strap is closed, and the sub-programs can also be started after the total program is started, so that all functions of the safe backpack are in the starting state. For example, the laser array radar starts to emit and receive detection signals, and the gas generation device enters the preparation state of gas generation.

[0073] In the safe travel bag, a warning light is further included, which is installed at the back of the safe travel bag and has a special shape and color, and the shape and color are not specifically limited in the embodiment, the warning light can detect the light intensity around, and can automatically light up when the light is weak, which is mainly completed through a solar lamp controller and a solar panel, the two ends of the solar panel output voltage and current, and the voltage can be controlled by the intensity of light, the voltage is high when the light intensity is high, and the voltage is low when the light intensity is low, and the indicator light is connected with the intelligent chip system of the controller, so that the voltage of the voltage plate can be sensed. When the indicator light controller senses that the voltage on the solar panel is lower than a certain set value, the controller will automatically open the switch of the indicator light, so that the LED light is turned on, and when the voltage at the two ends of the terminal of the solar panel is higher than a certain set value, the controller will automatically turn off the LED light, so that the light control function is realized.

[0074] In the safe travel bag, a transmitter and a receiver are further included, the transmitter can emit a signal of a specific frequency, and the receiver is used to receive the signal of the specific frequency, wherein the signals emitted by different pairs of transmitters and receivers are not the same, and in order to avoid the influence of the human body on the frequency, the influence can be reduced by widening the frequency band before emission. The receiver can exist in the form of an accessory of the safe travel bag, and when traveling, parents can carry the accessory containing the receiver, when the distance between the safe travel bag and the accessory exceeds a certain distance, for example, 3m, the receiver will emit an alarm sound to remind the parents that the child is out of the parents' range, so as to prevent the child from being lost.

[0075] In the embodiment, the detection signal of the laser array radar is obtained at a preset detection frequency, vehicle information of a vehicle in a detection range is analyzed according to the detection signal, the vehicle information includes a vehicle type, a driving direction and a driving speed, an intention of the driving direction and the driving speed is judged, a danger level of the vehicle is determined, a warning signal is generated according to the danger level, and the safe travel bag performs a corresponding control action according to the warning signal. Through the detection of the surrounding vehicles by the laser array radar, the form trend of the surrounding vehicles can be determined, the driving track of the vehicle is predicted, whether danger will occur is judged, and corresponding actions are actively made to avoid danger when danger will occur, so as to ensure the safety of travel.

[0076] Reference Figure 4 , Figure 4 It is a flowchart of a control method of a safe travel bag according to a second embodiment of the present application.

[0077] Based on the first embodiment, the control method of the safe travel bag further includes the following steps before the step S10.

[0078] Step S201: obtaining the profile information of the vehicle in the detection range according to the detection signal.

[0079] Step S202: obtaining the vehicle width and height according to the detection signal.

[0080] Step S203: obtaining the vehicle type according to the profile information, the vehicle width and height.

[0081] It should be noted that the profile information reflects the shape of the vehicle, and the profile information corresponds to a cross section of the vehicle. The profile information can be roughly classified and distinguished according to the profile information.

[0082] In a specific implementation, after the laser array radar receives the returned detection signal, the detection signal can be analyzed. First, the distance between the vehicle and itself is determined according to the total time of detection signal emission and return. At the same time, since the reflected detection signal is partial, the profile information of the collision object is generated according to the reflected detection signal. The profile information is detected, the characteristics of the profile information are judged, if the characteristics of the profile information are the same as the characteristics possessed by the vehicle, the profile information can be retained, recorded and added with a pre-mark for easy continuous tracking and detection. If the profile information does not conform to the profile information of the vehicle, the profile information is deleted. After obtaining the profile information of the vehicle, the profile information of the vehicle can be initially selected, and it can be judged that the vehicle is a two-wheeled vehicle, a three-wheeled vehicle or a four-wheeled vehicle and above. Since the cross-sectional profile of the two-wheeled vehicle is relatively low and narrow, the three-wheeled vehicle presents a "convex" feature, and the four-wheeled vehicle presents a square feature, the profile information can be used to preliminarily classify the vehicle to obtain the approximate type of the vehicle.

[0083] Referring to Figure 5 , Figure 5 A schematic diagram for calculating the height and width of the vehicle. When the detection signal detects the vehicle, the height angle a and the width angle β of the detection signal are obtained according to the returned detection signal. At the same time, the distance L1 between the vehicle and the radar can be obtained by multiplying the time difference At received and emitted and the speed of light c, so the vehicle height H and the vehicle width W can be obtained. The calculation formula is as follows:

[0084] L1 = cAt, H = L1 tan a,

[0085] At this time, after the vehicle height H and the vehicle width W of the vehicle are calculated, the vehicle type corresponding table is searched according to the ratio of the vehicle height H and the vehicle width W and the profile information of the vehicle to obtain the vehicle type of the vehicle.

[0086] Further, the vehicle information of the vehicle within the detection range is obtained according to the analysis of the detection signal, including:

[0087] The detection distance between the safe travel bag and the vehicle is obtained according to the detection signal.

[0088] The driving direction of the vehicle is obtained according to a plurality of continuous detection signals.

[0089] The driving speed of the vehicle is obtained according to a plurality of continuous detection distances.

[0090] In a specific implementation, after the vehicle is locked, the vehicle can be continuously detected until the vehicle is out of the detection range. If the vehicle is within the detection range of the laser array radar, the driving direction of the vehicle is determined according to the distance between the safe travel bag and the vehicle. The driving direction of the vehicle can be determined by the distance between the safe travel bag and the vehicle. If the distance between the safe travel bag and the vehicle shows a decreasing trend, it indicates that the driving direction of the vehicle is towards the safe travel bag. Similarly, if the distance between the safe travel bag and the vehicle shows an increasing trend, it indicates that the driving direction of the vehicle is away from the safe travel bag. The calculation method of the detection distance between the safe travel bag and the vehicle has been described above. At the same time, according to the time spent in each detection of the detection distance obtained by continuous detection, the driving speed V of the vehicle at this time can be calculated.

[0091] Further, the intention of the driving direction and the driving speed is determined, and the danger level of the vehicle is determined, including:

[0092] When the detection distance is less than the warning distance and the driving speed is greater than the warning speed, the danger level is updated to a warning level.

[0093] When the detection distance is less than the safety distance and the driving speed is greater than the safety speed, the danger level is updated to a protection level.

[0094] It should be noted that the warning speed is related to the type of the vehicle. The warning speed and the warning distance together determine the warning level. The warning level corresponds to the contraction of the harness to remind the user to pay attention. The protection level will actively release the safety airbag.

[0095] In a specific implementation, for each type of vehicle, there are corresponding warning distance and warning speed, safety distance and safety speed. When the vehicle is detected, the type of the vehicle is quickly determined. According to the vehicle type, the speed and distance relationship corresponding table is searched. According to the vehicle type, the corresponding warning distance L 预 and safety distance L 安 , warning speed V 预and a safe speed V 安 At this time, according to the driving speed of the current vehicle and the pre-warning speed V 预 and a safe speed V 安 When the detection distance is less than the pre-warning distance L 预 and the driving speed is greater than the pre-warning speed V 预 , the danger level is updated to a pre-warning level; when the detection distance is less than the safe distance L 安 and the driving speed is greater than the safe speed V 安 , the danger level is updated to a protection level.

[0096] Further, the safe travel bag further comprises a stepping motor and a gas generator, the pre-warning signal is generated according to the danger level, and the safe travel bag performs corresponding control actions according to the pre-warning signal, including:

[0097] When the danger level is a pre-warning level, a first pre-warning signal is generated according to the driving direction and the pre-warning level;

[0098] When the danger level is a protection level, a second pre-warning signal is generated according to the driving direction and the protection level;

[0099] When the safe travel bag receives the first pre-warning signal, a first control instruction is sent to the stepping motor according to the first pre-warning signal, so that the stepping motor tightens the corresponding shoulder strap in the driving direction according to the first control instruction;

[0100] When the safe travel bag receives the second pre-warning signal, a second control instruction is sent to the gas generator according to the second pre-warning signal, so that the gas generator generates gas to pop up a safety airbag according to the second control instruction.

[0101] It should be noted that the first pre-warning signal and the second pre-warning signal refer to the coping information generated at the pre-warning level, and the coping information refers to the strategy to be executed for the current situation.

[0102] In a specific implementation, according to the judgment of the danger level, when the danger level is a pre-warning level, the safe travel backpack generates a first control instruction according to the first pre-warning signal, the first control instruction includes the direction of the vehicle, and when the first control instruction is transmitted to the stepping motor, the stepping motor retracts the shoulder strap to prompt the user to pay attention to the vehicle in the direction. For example, if a vehicle appears on the left side, the first control signal carries the information of the left side and is sent to the left stepping motor, so that the left stepping motor retracts. If the danger level at this time is a protection level, it means that the current vehicle poses a threat to the life safety of the user of the safe travel backpack. Therefore, a second control instruction is generated according to the direction of the vehicle, and the second control instruction is sent to the gas generator on the side of the vehicle, so that the gas generator quickly reacts to inflate the safety airbag and pop out to wrap the user, thereby reducing the threat of the vehicle to the life safety of the user.

[0103] Further, when the safe travel backpack receives the second pre-warning signal, the second control instruction is sent to the gas generator according to the second pre-warning signal, so that the gas generator generates gas according to the second control instruction after the safety airbag pops out, and the method further includes:

[0104] Obtaining the GPS signal to determine the current position information;

[0105] Sending an alarm message according to the position information.

[0106] In a specific implementation, after the safe travel backpack generates the second control instruction and pops out the safety airbag according to the second control instruction, the GPS signal of the safe travel backpack can be obtained to obtain the current GPS positioning and determine the current position information, and an alarm is started at the same time. The alarm number can include the telephone number of an emergency center and an emergency contact person, etc. After the GPS signal is obtained, an alarm message is sent to the alarm number at the same time.

[0107] The embodiment determines the corresponding pre-warning distance, safety distance, pre-warning speed and safety speed according to the type of the vehicle, the speed of the vehicle and the distance of the vehicle, realizes different prediction strategies for different types of vehicles, determines the control action to be performed, and further guarantees the life safety of the user of the safe travel backpack.

[0108] In addition, the embodiment of the present application also provides a storage medium, and the storage medium stores a control program of a safe travel backpack. When the control program of the safe travel backpack is executed by a processor, the steps of the control method of the safe travel backpack are realized.

[0109] Reference Figure 6 , Figure 6The structural block diagram of the control device of the safe travel bag according to the first embodiment of the present application.

[0110] As shown in Figure 6 the control device of the safe travel bag according to the embodiment of the present application comprises:

[0111] a radar detection module 10 configured to acquire a detection signal of the laser array radar at a preset detection frequency;

[0112] a signal analysis module 20 configured to analyze vehicle information of a vehicle in a detection range according to the detection signal, wherein the vehicle information comprises a vehicle type, a driving direction and a driving speed;

[0113] a danger judgment module 30 configured to perform intention judgment on the driving direction and the driving speed, and determine a danger level of the vehicle;

[0114] a danger warning module 40 configured to generate a warning signal according to the danger level, and the safe travel bag performs corresponding control actions according to the warning signal.

[0115] In the embodiment, the detection signal of the laser array radar is acquired at a preset detection frequency; the vehicle information of a vehicle in a detection range is analyzed according to the detection signal, wherein the vehicle information comprises a vehicle type, a driving direction and a driving speed; intention judgment is performed on the driving direction and the driving speed, and a danger level of the vehicle is determined; a warning signal is generated according to the danger level, and the safe travel bag performs corresponding control actions according to the warning signal. Through the detection of surrounding vehicles by the laser array radar, the trend of the surrounding vehicles can be determined, the driving track of the vehicle can be predicted, and it can be judged whether danger will occur. When danger will occur, corresponding actions can be actively taken to avoid the danger, so as to ensure travel safety.

[0116] In an embodiment, the signal analysis module 20 is further configured to acquire profile information of the vehicle in the detection range according to the detection signal; acquire a vehicle width and a vehicle height of the vehicle according to the detection signal; and acquire the vehicle type according to the profile information of the vehicle, the vehicle width and the vehicle height.

[0117] In an embodiment, the signal analysis module 20 is further configured to acquire a detection distance between the safe travel bag and the vehicle according to the detection signal; acquire the driving direction of the vehicle according to a plurality of continuous detection signals; and acquire the driving speed of the vehicle according to a plurality of continuous detection distances.

[0118] In an embodiment, the danger judging module 30 is further configured to update the danger level to a pre-warning level when the detection distance is less than a pre-warning distance and the driving speed is greater than a pre-warning speed; and update the danger level to a protection level when the detection distance is less than a safety distance and the driving speed is greater than a safety speed.

[0119] In an embodiment, the danger warning module 40 is further configured to generate a first warning signal according to the driving direction and the pre-warning level when the danger level is the pre-warning level; generate a second warning signal according to the driving direction and the protection level when the danger level is the protection level; send a first control instruction to the step motor according to the first warning signal when the safety travel backpack receives the first warning signal, so that the step motor tightens the corresponding strap according to the first control instruction; and send a second control instruction to the gas generator according to the second warning signal when the safety travel backpack receives the second warning signal, so that the gas generator generates gas according to the second control instruction to pop up a safety airbag.

[0120] In an embodiment, the danger warning module 40 is further configured to acquire the GPS signal to determine current position information; and send an alarm according to the position information.

[0121] In an embodiment, the radar detection module 10 is further configured to detect the opening and closing state of the strap of the safety travel backpack, and start the detection function of the laser array radar when the opening and closing state is the closed state.

[0122] It should be understood that the above is only an example, and does not constitute any limitation on the technical solutions of the present application. In specific applications, those skilled in the art can set it up according to the needs, and the present application does not limit it.

[0123] It should be noted that the above-described workflow is only illustrative and does not limit the scope of protection of the present application. In actual application, those skilled in the art can select part or all of them to achieve the purpose of the embodiment scheme according to actual needs, which is not limited here.

[0124] In addition, it should be noted that in this paper, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or system. Without more limitation, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0125] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0126] Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk) and includes a plurality of instructions for causing an end device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0127] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A control method of a safe travel bag, characterized by, The safe travel bag control method is applied to the safe travel bag, the safe travel bag comprises a laser array radar, and the control method of the safe travel bag comprises the following steps: A detection signal of the laser array radar is acquired at a preset detection frequency; Vehicle information of a vehicle in a detection range is analyzed according to the detection signal, wherein the vehicle information comprises a vehicle type, a driving direction and a driving speed; The vehicle information of the vehicle in the detection range is analyzed according to the detection signal, and the vehicle information comprises: A detection distance between the safe travel bag and the vehicle is obtained according to the detection signal; A driving direction of the vehicle is obtained according to a plurality of continuous detection signals; A driving speed of the vehicle is obtained according to a plurality of continuous detection distances; An intention of the driving direction and the driving speed is judged to determine a danger level of the vehicle; The intention of the driving direction and the driving speed is judged to determine the danger level of the vehicle, and the danger level is updated to a warning level when the detection distance is less than a warning distance and the driving speed is greater than a warning speed; The danger level is updated to a protection level when the detection distance is less than a safety distance and the driving speed is greater than a safety speed; A warning signal is generated according to the danger level, and the safe travel bag performs a corresponding control action according to the warning signal; The safe travel bag further comprises a stepping motor and a gas generator, and the warning signal is generated according to the danger level, and the safe travel bag performs the corresponding control action according to the warning signal, and the warning signal is generated according to the driving direction and the warning level when the danger level is the warning level; The warning signal is generated according to the driving direction and the protection level when the danger level is the protection level; The first control instruction is sent to the stepping motor according to the first warning signal when the safe travel bag receives the first warning signal, so that the stepping motor tightens the corresponding shoulder strap according to the first control instruction; The second control instruction is sent to the gas generator according to the second warning signal when the safe travel bag receives the second warning signal, so that the gas generator generates gas according to the second control instruction to pop up a safety airbag. The vehicle information of the vehicle in the detection range is analyzed according to the detection signal, and the vehicle information comprises: The contour information of the vehicle in the detection range is obtained according to the detection signal; 2. The control method of the safety travel bag of claim 1, wherein, The vehicle width and the vehicle height of the vehicle are obtained according to the detection signal; The vehicle type is obtained according to the contour information, the vehicle width and the vehicle height of the vehicle. The safe travel bag comprises a GPS, and after the second control instruction is sent to the gas generator according to the second warning signal when the safe travel bag receives the second warning signal, so that the gas generator generates gas according to the second control instruction to pop up a safety airbag, the method further comprises the following steps: The current position information is determined by acquiring the GPS signal; 3. The control method of the safety travel bag of claim 1, wherein, The alarm information is sent according to the position information. ​ ​ 4. The control method of the safe travel bag according to any one of claims 1 to 3, characterized in that, Before the laser array radar detection signal is acquired at the preset detection frequency, the method further comprises: detecting the opening and closing state of the safety travel bag strap, and starting the detection function of the laser array radar when the opening and closing state is closed.

5. A control device of a safety travel bag, characterized by, The control device of the safety travel bag comprises: a radar detection module for acquiring a laser array radar detection signal at a preset detection frequency; a signal analysis module for analyzing vehicle information of a vehicle in a detection range according to the detection signal, wherein the vehicle information comprises a vehicle type, a driving direction, and a driving speed; The vehicle information obtained by analyzing the detection signal in the detection range comprises: obtaining a detection distance between the safety travel bag and the vehicle according to the detection signal; obtaining the driving direction of the vehicle according to a plurality of continuous detection signals; obtaining the driving speed of the vehicle according to a plurality of continuous detection distances; a danger judgment module for judging the intention of the driving direction and the driving speed, and determining the danger level of the vehicle; The intention judgment of the driving direction and the driving speed to determine the danger level of the vehicle comprises: updating the danger level to a warning level when the detection distance is less than a warning distance and the driving speed is greater than a warning speed; updating the danger level to a protection level when the detection distance is less than a safety distance and the driving speed is greater than a safety speed; a danger warning module for generating a warning signal according to the danger level, and the safety travel bag performing corresponding control actions according to the warning signal; Wherein, the safety travel bag further comprises a stepping motor and a gas generator, and the generation of the warning signal according to the danger level and the corresponding control actions of the safety travel bag according to the warning signal comprise: generating a first warning signal according to the driving direction and the warning level when the danger level is a warning level; generating a second warning signal according to the driving direction and the protection level when the danger level is a protection level; when the safety travel bag receives the first warning signal, sending a first control instruction to the stepping motor according to the first warning signal, so that the stepping motor tightens the strap corresponding to the driving direction according to the first control instruction; when the safety travel bag receives the second warning signal, sending a second control instruction to the gas generator according to the second warning signal, so that the gas generator generates gas according to the second control instruction to pop up the safety airbag.

6. A control device of a safe travel bag, characterized by, The device comprises a memory, a processor, and a safety travel bag control program stored on the memory and executable on the processor, wherein the safety travel bag control program is configured to implement the steps of the safety travel bag control method according to any one of claims 1 to 4.

7. A storage medium, characterized by The storage medium stores a safety travel bag control program, and the safety travel bag control program is executed by the processor to implement the steps of the safety travel bag control method according to any one of claims 1 to 4.

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