Vehicle-mounted safety alarm system

Abstract

The invention relates to the technical field of vehicle early warning, and discloses a vehicle-mounted safety alarm system. According to the system, multi-dimensional information such as the vehicle speed, the surrounding obstacle distance, the real-time position and the vehicle window state is obtained in real time through the data acquisition module, and the data processing module conducts deep analysis on the complex data through an advanced fusion algorithm to accurately calculate the current speed acceleration, the collision risk value and the driving track of the vehicle. The system can effectively reduce the common false alarm and missing alarm phenomena in a traditional vehicle-mounted alarm system, improves the credibility and reaction speed of a driver for alarm information, and the alarm response module generates an audible and visual alarm according to the calculation result of the data processing module, thereby guaranteeing that the driver can obtain an alarm in time when encountering potential dangers, and improving the safety of the driver. And the user interface module displays the vehicle state and the alarm information in real time through the touch display screen, so that the driver can intuitively know the current driving environment, and the driver can make a quick decision.

Description

Technical Field

[0003] The present invention relates to the technical field of vehicle warning, and specifically to an in-vehicle safety alarm system. Background Art

[0004] With the rapid development of the automotive industry, the intelligence and safety of vehicles have gradually become the focus of people's attention. As one of the important technologies to improve vehicle safety, the in-vehicle safety alarm system aims to monitor the running state of the vehicle and the external environment in real time, detect potential dangers in a timely manner and issue alarms. Through a variety of sensors and data processing technologies, this system can continuously monitor key parameters such as the vehicle speed, position, and distance to surrounding obstacles, thereby effectively preventing traffic accidents. Especially in urban roads, busy blocks or adverse weather conditions, the role of the in-vehicle safety alarm system is even more obvious. It can not only provide real-time safety information for drivers, but also reduce the accident risk caused by factors such as driving fatigue and distraction to a certain extent. Therefore, improving the vehicle safety protection technology is of great significance for reducing the incidence of traffic accidents and protecting the lives of drivers and passengers.

[0005] Traditional in-vehicle alarm systems usually rely on multiple sensors. However, due to the complexity and diversity of sensor data, these data cannot be effectively fused, which will lead to problems of false alarms and missed alarms in vehicle alarms. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the present invention provides an in-vehicle safety alarm system. The data acquisition module obtains multi-dimensional information such as vehicle speed, distance to surrounding obstacles, real-time position, and window state in real time, providing a comprehensive data basis. The data processing module uses advanced fusion algorithms to deeply analyze this complex data, accurately calculates the current vehicle speed acceleration, collision risk value, and driving trajectory. This accurate data analysis can effectively reduce the common false alarms and missed alarms in traditional in-vehicle alarm systems, thereby enhancing the driver's trust in alarm information and reaction speed. The alarm response module generates audible and visual alarms according to the calculation results of the data processing module to ensure that the driver can obtain warnings in a timely manner when encountering potential dangers, further enhancing driving safety. The user interface module displays the vehicle state and alarm information in real time through a touch screen, enabling the driver to intuitively understand the current driving environment and helping them make quick decisions.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solution: An in-vehicle safety alarm system, including a data acquisition module, a data processing module, an alarm response module, and a user interface module;

[0010] The data acquisition module is used to collect vehicle speed data, the distance data between obstacles around the vehicle and the vehicle, the real-time position of the vehicle, and the window switch state data, and transmit them to the data processing module;

[0011] The data processing module is used to analyze the data transmitted by the data acquisition module through a fusion algorithm, calculate the current vehicle speed, vehicle acceleration, vehicle collision risk value, and vehicle driving trajectory, and transmit the calculated values to the alarm response module;

[0012] The alarm response module generates a vehicle alarm signal according to the values obtained by the fusion analysis and calculation of the data processing module, and the alarm signal is an audible and visual alarm;

[0013] The user interface module displays the vehicle status and alarm information in real time through a touch display screen.

[0014] Preferably, the data acquisition module includes a direction sensor for obtaining vehicle driving direction information to analyze the vehicle driving trajectory.

[0015] Preferably, the data acquisition module is equipped with a 4K high-definition camera for monitoring the real-time video around the vehicle and identifying abnormal behaviors.

[0016] Preferably, the formula for the current vehicle speed is as follows:

[0017]

[0018] In the formula, V represents the current vehicle speed, D represents the distance traveled by the vehicle within the time period t, and t represents the time taken for the vehicle to travel.

[0019] Preferably, the formula for the vehicle acceleration is as follows:

[0020]

[0021] In the formula, A represents the vehicle acceleration, Zzsd represents the final vehicle speed, Cssd represents the initial vehicle speed, and ts represents the time taken for the speed change.

[0022] Preferably, the calculation formula for the vehicle collision risk value is as follows:

[0023]

[0024] In the formula, R represents the vehicle collision risk value, V represents the current vehicle speed, D obst represents the distance between the vehicle and the surrounding obstacles.

[0025] Preferably, the formula for the vehicle driving trajectory is as follows:

[0026] Gj(t) = (x(t), y(t))

[0027] In the formula, Gj(t) represents the vehicle driving trajectory, x(t) represents the longitude coordinate of the vehicle at time t, y(t) represents the latitude coordinate of the vehicle at time t, and t represents the instantaneous position of the vehicle.

[0028] Preferably, the data processing module includes a data fusion algorithm for combining vehicle speed and acceleration data to determine whether the vehicle is in an emergency braking state.

[0029] Preferably, the alarm response module generates alarm signals of different levels according to the vehicle collision risk value, representing low, medium, and high risks respectively.

[0030] Preferably, the alarm response module further includes a vibrator for providing an additional physical perception alarm on the basis of the acoustic and optical alarm.

[0031] Compared with the prior art, the present invention provides a vehicle-mounted safety alarm system, which has the following beneficial effects:

[0032] The present invention obtains multi-dimensional information such as vehicle speed, distance to surrounding obstacles, real-time position, and window state in real time through the data acquisition module, providing a comprehensive data basis. The data processing module uses an advanced fusion algorithm to deeply analyze these complex data, accurately calculating the vehicle's current speed, acceleration, collision risk value, and driving trajectory. This accurate data analysis can effectively reduce false alarms and missed alarms commonly found in traditional vehicle-mounted alarm systems, thereby enhancing the driver's trust in alarm information and reaction speed. The alarm response module generates acoustic and optical alarms according to the calculation results of the data processing module to ensure that the driver can obtain warnings in a timely manner when encountering potential dangers, further enhancing driving safety. The user interface module displays the vehicle state and alarm information in real time through a touch screen, enabling the driver to intuitively understand the current driving environment and helping them make quick decisions. The system as a whole realizes the effective fusion and analysis of multi-source data, improves the accuracy and response speed of safety alarms, and thus provides a more reliable and intelligent driving safety guarantee for the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the system flow of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Aiming at the problem that traditional vehicle alarm systems usually rely on multiple sensors, however, due to the complexity and diversity of sensor data, these data cannot be effectively fused, which will lead to false alarms and missed alarms of vehicle alarms. For this reason, a vehicle safety alarm system is proposed. Please refer to Figure 1 , this system includes a data acquisition module, a data processing module, an alarm response module, and a user interface module;

[0036] The data acquisition module in the vehicle safety alarm system is responsible for comprehensively collecting various data related to vehicle operation to ensure that the system can monitor and analyze the vehicle condition in real time. First of all, this module can efficiently collect vehicle speed data to ensure real-time acquisition of the dynamic changes of the vehicle. Through the speed sensor installed on the vehicle chassis, the system can immediately feedback the driving speed of the vehicle to ensure accuracy throughout the operation process. In addition, the data acquisition module is also equipped with ultrasonic or radar sensors specifically for measuring the distance to surrounding obstacles. This technology enables the system to automatically identify and evaluate potential collision risks during driving, and thus issue alarms in a timely manner;

[0037] In order to further enhance the real-time performance and accuracy of the system, the data acquisition module also incorporates a direction sensor. By obtaining vehicle driving direction information and analyzing the vehicle driving trajectory, the real-time analysis of this dynamic direction data can effectively judge the movement path and possible direction of the vehicle, providing necessary input for the subsequent data processing module to help better evaluate risks. In addition, a high-performance GPS module is used to obtain the real-time position information of the vehicle to ensure the accuracy of navigation and monitoring;

[0038] The data acquisition module is also equipped with a high-definition camera that can provide real-time video monitoring of the vehicle's surrounding environment. This technical means enables the system to be no longer limited to physical sensing data, but also to automatically identify abnormal behaviors through image recognition technology, such as sudden appearance of pedestrians, obstruction by other vehicles, etc. dangerous situations. Combining image processing technology, this camera can analyze and extract important information in real time, convert video data into key parameters available for alarm triggering, and further enhance vehicle safety;

[0039] Through these efficient technical means, the data acquisition module not only realizes the function of comprehensively monitoring the vehicle state, but also lays a solid foundation for subsequent data analysis and processing, providing more comprehensive and accurate safety protection for the driver;

[0040] The data processing module in the vehicle safety alarm system is responsible for receiving various data transmitted from the data acquisition module and conducting comprehensive analysis through a highly accurate data fusion algorithm. The main functions of this module are to calculate key parameters such as the current speed, acceleration, collision risk value, and driving trajectory of the vehicle. These pieces of information will be directly transmitted to the alarm response module to issue safety alarms in a timely manner and ensure driving safety;

[0041] First, the formula for calculating the current speed is as follows:

[0042]

[0043] Among them, V represents the current speed of the vehicle, and D is the distance traveled within time t. The accurate acquisition of this parameter can help the driver clearly understand the driving state of the vehicle and adjust the driving strategy in a timely manner. Through high-frequency speed data acquisition, the data processing module can achieve real-time monitoring of the vehicle's dynamics, thereby enhancing driving safety;

[0044] Secondly, the calculation of the vehicle acceleration uses the following formula:

[0045]

[0046] In this formula, A represents the acceleration, Zzsd - Cssd is the change in speed, and ts is the time taken for the speed change. The acceleration information can not only inform the driver of the vehicle's acceleration situation but also help judge the safety of driving operations. For example, sudden acceleration or deceleration may affect driving safety;

[0047] The calculation of the collision risk value is an important part of the data processing module, and its formula is:

[0048]

[0049] Among them, R represents the collision risk value, V is the current speed, and D obst is the distance from the surrounding obstacles. Through this formula, the system can effectively evaluate the possibility of collision with the obstacles ahead at the current speed. The real-time nature of this risk assessment enables the system to issue alarms when necessary to prevent accidents;

[0050] The generation of the driving trajectory provides dynamic geographic information support for the data processing module. This process can be achieved by continuously recording the GPS coordinates of the vehicle at different times. For example, it can be represented in the following way:

[0051] Gj(t) = (x(t), y(t))

[0052] Among them, x(t) and y(t) are the longitude and latitude information of the vehicle at time t. After understanding the vehicle's driving trajectory, the system can track the previous driving path and the current driving direction, which plays an important role in future trajectory prediction and the identification of dangerous areas;

[0053] In the data fusion algorithm, the system can combine the vehicle's speed and acceleration data to determine whether it is in an emergency braking state. Emergency braking is one of the important causes of traffic accidents. Therefore, the standard for judging emergency braking is very crucial. The algorithm compares the acceleration change A with a preset emergency braking threshold in real time. If A < -a ttreshold (that is, the acceleration value is less than the set threshold, indicating that the vehicle is decelerating sharply), the system will identify the current state as emergency braking, and then adjust the alarm strategy to issue a warning to the driver;

[0054] Through the combination of the above various calculations and algorithms, the data processing module not only completes the analysis of single data, but also realizes the data fusion and comprehensive judgment of multiple dimensions. This multi-level analysis mechanism can greatly improve the intelligence and accuracy of the in-vehicle alarm system, timely respond to potential traffic risks, provide comprehensive safety protection for the driver, and at the same time, the rapid transmission of information from the data processing module to the alarm response module enables the system to quickly respond in a rapidly changing driving environment, improve driving safety, and prevent accidents from occurring;

[0055] The alarm response module is an important part of the in-vehicle safety alarm system, which is responsible for converting various risk indexes calculated by the data processing module into intuitive and perceptible alarm signals to ensure the safety of the driver and passengers. This module constructs a multi-level alarm system through a variety of technical means. This system can issue targeted alarms in real time according to the changes in the vehicle's environment and operating state, ensuring that the driver can respond quickly and accurately;

[0056] First of all, the alarm response module receives key data from the data processing module, including the vehicle's collision risk value, driving speed, acceleration and other information. After these data are fused and calculated, a detailed assessment of the current driving state is formed. According to the level of the collision risk value, the alarm response module can generate alarm signals of different levels, which are presented in the form of audible and visual alarms. The audible alarm can clearly convey the urgency of danger by setting the volume and rhythm changes. For example, when the collision risk value is below the set low-risk threshold, the system may only issue a simple warning sound to remind the driver to pay attention, while when the risk value reaches medium or high risk, the system will activate a more rapid and harsh alarm sound to convey the severity of the emergency. The visual alarm also plays an important role. Through the flashing LED indicator, the passengers can visually confirm the alarm status and quickly take corresponding measures;

[0057] In addition to the audible and visual alarms, the alarm response module also integrates a vibrator to provide an additional physical perception alarm. This technical means is of great significance for improving the driver's alertness. Especially in noisy driving environments such as highways or urban areas, this physical feedback can effectively overcome the limitation that the sound alarm may be ignored. By organizing changes in the vibration pattern, such as rapid vibration or short intermittent vibration, the driver can instantly determine the current level of danger and then quickly take necessary measures, such as decelerating or avoiding obstacles.

[0058] To make the alarm system more user-friendly, the alarm response module is also equipped with adjustable personalized settings. The driver can customize the alarm type and intensity according to their own needs. This highly flexible alarm mechanism enables the system to adapt to different user preferences and actual driving environments, improving the overall safety and user experience.

[0059] The user interface module uses a high-resolution touch display screen, which can not only intuitively display the current status information of the vehicle, such as speed, acceleration, fuel consumption, GPS location information, etc., but also immediately present the alarm status. Through a clear combination of information graphics and text, the driver can clearly understand the safety status of the vehicle at a glance.

[0060] The user can easily access the required information through simple gestures and touch operations on the touch display screen. The display screen not only displays real-time alarm information but also shows more detailed historical driving data, helping the driver analyze and summarize past data. For example, the user can view the alarm frequency within a certain period of time, understand the high-risk areas of potential dangers and driving habits, so as to make adjustments and improvements in subsequent driving.

[0061] In terms of design, the alarm response module is closely integrated with the user interface module. The corresponding alarm information can be visually displayed on the information interface to remind the driver to pay attention in real time, thus enhancing the transparency and receptivity of the information. When the alarm sounds, the screen will automatically switch to the alarm interface to highlight the current alarm status and guide the driver's understanding and response to the vehicle condition with concise and clear text and graphics. In addition, the user interface also provides a buffering and delay mechanism to prevent frequent low-risk alarms from disturbing the driver and ensure that high-risk alarms can be given priority at critical moments.

[0062] In the context of intelligentization, the alarm response module can also achieve a more extensive alarm expansion by interconnecting with other intelligent devices. For example, by pairing with a mobile device, the system can not only issue an alarm in the vehicle but also push the alarm information to the driver's mobile phone. In this way, whether the driver is inside the vehicle or away from it, they can timely learn about the safety status of the vehicle and take corresponding measures.

[0063] Through the comprehensive application of the above system, the broadcast rate of in-vehicle safety alarms has been significantly improved, avoiding the problems of false alarms and missed alarms, and providing a more efficient driving safety monitoring device for drivers.

[0064] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle safety alarm system, characterized in that: It includes a data acquisition module, a data processing module, an alarm response module and a user interface module; The data acquisition module is used to collect vehicle speed data, distance data between obstacles around the vehicle and the vehicle, real-time position of the vehicle and window switch status data, and transmit them to the data processing module; The data processing module is used to analyze the data transmitted by the data acquisition module through a fusion algorithm, calculate the current speed of the vehicle, the acceleration of the vehicle, the collision risk value of the vehicle and the driving trajectory of the vehicle, and transmit the calculated values ​​to the alarm response module; The alarm response module generates a vehicle alarm signal according to the values ​​fused, analyzed and calculated by the data processing module, wherein the alarm signal is an audible and visual alarm; The user interface module displays vehicle status and alarm information in real time through a touch screen.

2. The vehicle safety alarm system according to claim 1, characterized in that: The data acquisition module includes a direction sensor for acquiring vehicle driving direction information to analyze the vehicle driving trajectory.

3. The vehicle safety alarm system according to claim 2, characterized in that: The data acquisition module is equipped with a 4K high-definition camera for monitoring real-time video around the vehicle and identifying abnormal behavior.

4. The vehicle safety alarm system according to claim 3, characterized in that: The formula for the current speed of the vehicle is as follows: In the formula, V represents the current speed of the vehicle, D represents the distance traveled by the vehicle in time period t, and t represents the time taken by the vehicle to travel.

5. The vehicle safety alarm system according to claim 4, characterized in that: The formula for the vehicle acceleration is as follows: In the formula, A represents the vehicle acceleration, Zzsd represents the vehicle final speed, Cssd represents the vehicle initial speed, and ts represents the time taken for the speed change.

6. The vehicle safety alarm system according to claim 5, characterized in that: The calculation formula of the vehicle collision risk value is as follows: In the formula, R represents the vehicle collision risk value, V represents the current speed of the vehicle, and D obst Indicates the distance between the vehicle and surrounding obstacles.

7. The vehicle safety alarm system according to claim 6, characterized in that: The formula of the vehicle's driving trajectory is as follows: Gj(t)=(x(t),y(t)) In the formula, Gj(t) represents the vehicle's driving trajectory, x(t) represents the longitude coordinate of the vehicle at time t, y(t) represents the latitude coordinate of the vehicle at time t, and t represents the instantaneous position of the vehicle.

8. The vehicle safety alarm system according to claim 7, characterized in that: The data processing module includes a data fusion algorithm for combining vehicle speed and acceleration data to determine whether the vehicle is in an emergency braking state.

9. The vehicle safety alarm system according to claim 8, characterized in that: The alarm response module generates alarm signals of different levels according to the vehicle collision risk value, representing low, medium and high risks respectively.

10. The vehicle safety alarm system according to claim 9, characterized in that: The alarm response module also includes a vibrator for providing an additional body-sensing alarm in addition to the audible and visual alarms.

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