Driving safety monitoring system, control system and automobile seat cushion

Abstract

The invention discloses a driving safety monitoring system, a control system and an automobile seat cushion, and relates to the field of safe driving. The system comprises an automobile seat cushion and a control system, the automobile seat cushion comprises a seat cushion body and a pressure detection assembly. The pressure detection assembly is arranged on the cushion; the pressure detection assembly is connected with the control system; the pressure detection assembly is used for sensing pressure of different point positions of a driver on the cushion in real time and transmitting resistance data, generated through sensing, of the different point positions to the control system. The control system is used for determining whether the driving state and the sitting posture of the driver are abnormal or not according to the resistance data of the different point positions, and if the driving state or the sitting posture is abnormal, an early warning reminding signal is generated. The driving safety can be improved.

Description

Technical Field

[0001] The present application relates to the field of safe driving, and in particular to a driving safety monitoring system, a control system and a car seat cushion. Background Art

[0002] During long-distance driving, drivers are prone to traffic accidents due to fatigue driving caused by driving time, environmental road conditions, and physiological and psychological state. Fatigue driving has gradually become the main cause of road traffic accidents.

[0003] Existing fatigue driving detection methods mainly obtain the current physiological information and driving operation records of the target driver, and obtain the current trajectory information of the target vehicle as the basis for judging the degree of fatigue. However, the disadvantage is that this technology needs to obtain personal information such as the target driver's eye characteristics, pupil diameter changes, mouth status, and vehicle trajectory, which poses a risk of privacy information leakage. In addition, there are also methods of obtaining the user's motion images or steering wheel rotation information to evaluate the driver's fatigue state, but both have problems of low recognition accuracy and certain lag. Furthermore, there is also the use of a musical vibrator to make the seat produce different vibrations to avoid fatigue driving. The disadvantage of this solution is that the vibration generated by the seat itself interferes with driving to a certain extent, affecting the driver's operation.

[0004] Therefore, road safety has very high requirements on the real-time and accuracy of driver driving status monitoring. The development of effective driver safety status monitoring and early warning technology and equipment is of great practical significance for ensuring driver safety and improving road traffic safety conditions. Summary of the invention

[0005] The purpose of this application is to provide a driving safety monitoring system, a control system and a car seat cushion, which can improve driving safety.

[0006] To achieve the above objectives, this application provides the following solutions:

[0007] In the first aspect, the present application provides a driving safety monitoring system, comprising: a car seat cushion and a control system; the car seat cushion comprises a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion; the pressure detection component is connected to the control system; the pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time, and transmit the resistance data of the different points generated by the perception to the control system; the control system is used to determine whether the driver's driving state and sitting posture are abnormal based on the resistance data of different points, and if the driving state or sitting posture is abnormal, an early warning reminder signal is generated.

[0008] In the second aspect, the present application provides a driving safety control system, which includes: a central control vehicle system and the above-mentioned driving safety monitoring system; the central control vehicle system is connected to the control system in the driving safety monitoring system; the control system is used to transmit the generated early warning reminder signal to the central control vehicle system; the central control vehicle system is used to trigger safety response measures according to the early warning reminder signal.

[0009] In the third aspect, the present application provides a car seat cushion, which is applied to the above-mentioned driving safety monitoring system, and the car seat cushion includes a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion; the pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time, and generate resistance data of different points.

[0010] According to the specific embodiments provided in this application, this application has the following technical effects:

[0011] The present application provides a driving safety monitoring system, a control system and a car seat cushion. The seat cushion integrates a pressure detection component, which senses the pressure of the driver at different points on the seat cushion in real time and generates resistance data at different points. The control system determines whether the driver's driving state and sitting posture are abnormal based on the resistance data at different points. If the driving state or sitting posture is abnormal, an early warning reminder signal is generated. By real-time monitoring and early warning of abnormal driving state or sitting posture, the risk of accidents caused by bad driving habits is reduced, and driving safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic structural diagram of a car seat cushion in one embodiment of the present application. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0015] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] In an exemplary embodiment, the present application provides a driving safety monitoring system, including: a car seat cushion and a control system. The car seat cushion includes a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion; the pressure detection component is connected to the control system; the pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time, and transmit the resistance data of different points generated by the sensed pressure to the control system; the control system is used to determine whether the driving state and sitting posture of the driver are abnormal according to the resistance data of different points, and if the driving state or sitting posture is abnormal, an early warning reminder signal is generated.

[0017] The above-mentioned driving safety monitoring system integrates a pressure detection component on the seat cushion, and reduces the risk of accidents caused by bad driving habits and improves driving safety by real-time monitoring and warning of abnormal driving conditions or sitting postures.

[0018] In another exemplary embodiment of the present application, the pressure detection assembly includes: a plurality of SBR pressure distribution sensors and a plurality of sitting posture sensors. The plurality of SBR pressure distribution sensors and the plurality of sitting posture sensors are distributed on the surface of the seat cushion; and the plurality of SBR pressure distribution sensors and the plurality of sitting posture sensors are respectively connected to the control system.

[0019] Multiple SBR pressure distribution sensors are used to sense the pressure of different points on the driver's buttocks on the seat cushion in real time, and transmit the first resistance data generated by the perception to the control system; multiple sitting posture sensors are used to sense the pressure of different points on the driver's back and buttocks on the seat cushion in real time, and transmit the second resistance data generated by the perception to the control system; the control system is used to determine whether the driver's driving state is abnormal based on the first resistance data and based on preset driving state evaluation standards, and if the driving state is abnormal, a state warning reminder signal is generated; the control system is also used to determine whether the driver's sitting posture is abnormal based on the second resistance data, and if the sitting posture is abnormal, a sitting posture warning reminder signal is generated.

[0020] The automobile seat cushion of the present application is a seat cushion at the buttocks position and a back cushion in one body, a plurality of SBR pressure distribution sensors are located on the seat cushion surface at the buttocks position, a plurality of sitting posture sensors are distributed on the seat cushion at the buttocks position and the back cushion, and the pressure detection component is used to detect the pressure state of the driver's back and buttocks respectively. Both the SBR pressure distribution sensor and the sitting posture sensor are flexible capacitive sensors.

[0021] In another exemplary embodiment of the present application, when the car seat cushion is also provided on the passenger seat: a plurality of SBR pressure distribution sensors are used to sense the pressure of different points of the passenger's buttocks on the seat cushion in real time, and transmit the third resistance data generated by the perception to the control system; the control system is also used to determine whether there is a driver on the vehicle seat according to the first resistance data, or to determine whether there is a passenger on the vehicle seat according to the third resistance data, and if it is determined that there is a driver or a passenger, a seat belt reminder signal is generated.

[0022] In another exemplary embodiment of the present application, the above-mentioned seat cushion is a graphene heating pad.

[0023] Graphene heating pads are heating products designed for automobiles. They are the application of graphene heating modules in the thermal management of vehicle cabin microclimates and belong to the field of electronic heating material technology. Graphene heating pads are flexible planar heating modules that are highly compatible with automotive interiors. They are directly used in various components inside the car, providing a new direction for technology in the field of vehicle thermal management. Graphene heating pads utilize the excellent thermal conductivity of graphene materials to achieve rapid and uniform heating of seats. At the same time, they serve as a carrier for sensors to improve the integration of the overall system. Graphene heating pads have the following advantages:

[0024] 1. Rapid heating

[0025] High efficiency: Graphene has excellent electrical and thermal conductivity, which enables the graphene car heating pad to heat up quickly in a very short time. According to data, its heating speed is usually within 30 seconds, and some products can even heat up quickly within 1-2 seconds, which is much faster than traditional heating pads.

[0026] 2. Constant temperature control

[0027] Intelligent adjustment: The graphene car heating pad is equipped with an automatic temperature control function, which can maintain a constant temperature, avoid overheating or overcooling, and provide a more comfortable experience for drivers and passengers.

[0028] 3. Safety and health

[0029] Low radiation: The infrared light waves generated during the graphene heating process are harmless to the human body and will not produce harmful radiation. It is safer than traditional resistance wire heating methods.

[0030] No burning sensation: Graphene heats evenly without burning sensation, reducing safety hazards caused by uneven temperature.

[0031] 4. Comfortable experience

[0032] Excellent material: Graphene car heating pads are mostly made of high-quality suede material, which feels comfortable and soft, and has a certain elasticity, which can better protect the waist and back of drivers and passengers.

[0033] Promote circulation: Graphene's infrared light waves can also promote human blood circulation and metabolism, and improve the comfort of drivers and passengers.

[0034] 5. Accurate temperature control

[0035] Personalized adjustment: Graphene car heating pad can achieve different temperature adjustments for different parts to meet the personalized needs of drivers and passengers.

[0036] In another exemplary embodiment of the present application, the pressure detection component further includes: an NTC temperature sensor. The NTC temperature sensor is embedded in the graphene heating pad; the NTC temperature sensor is connected to the control system; the NTC temperature sensor is used to monitor the surface temperature of the vehicle seat in real time and transmit it to the control system; the control system is used to control the temperature of the graphene heating pad to be equal to a preset temperature according to the real-time surface temperature of the vehicle seat.

[0037] In another exemplary embodiment of the present application, the control system is an engine control unit (Electronic Control Unit, ECU).

[0038] The car seat cushion in this application integrates SBR (pressure distribution sensor), NTC (negative temperature coefficient thermistor) temperature sensor and sitting posture sensor through graphene heating pad. With the development of intelligence and functional diversification in the automotive industry, this application improves driving safety and reduces the risk of accidents caused by bad driving habits (such as fatigue driving, drunk driving, driving with illness, etc.) through innovative integrated design. The system uses the perfect combination of thin film sensor technology and graphene heating materials, which not only realizes intelligent heating and temperature control of seats, but also has the function of real-time monitoring of the driver and passenger sitting posture and seat belt wearing conditions, thereby providing all-round driving safety protection.

[0039] The driving safety monitoring system of this application has the following beneficial effects:

[0040] 1. Highly integrated: Integrating multiple sensors with the graphene heating cushion reduces the number of installation steps and connectors, and reduces system complexity and cost.

[0041] 2. Real-time monitoring: Real-time monitoring of the driver and passengers' sitting posture, seat belt wearing status and seat temperature to provide comprehensive driving safety protection.

[0042] 3. Intelligent adjustment: Automatically adjust the seat heating temperature and ventilation volume according to driving status and passenger preferences to improve riding comfort.

[0043] 4. Safety response: When bad driving habits or safety hazards are detected, the corresponding safety response measures can be automatically triggered to effectively avoid or reduce the occurrence of accidents.

[0044] Based on the same inventive concept, in an exemplary embodiment, the present application also provides a driving safety control system, including: a central control vehicle system and the above-mentioned driving safety monitoring system. The central control vehicle system is connected to the control system in the driving safety monitoring system; the control system is used to transmit the generated early warning reminder signal to the central control vehicle system; the central control vehicle system is used to trigger safety response measures according to the early warning reminder signal.

[0045] As an optional implementation, the driving safety control system further includes: a seat belt circuit. The central control vehicle system is used to receive the seat belt reminder signal generated by the control system and remind the driver to fasten the seat belt. After reminding the driver to fasten the seat belt, if the seat belt circuit is open, the central control vehicle system controls the vehicle to prohibit starting or issue an alarm; if the seat belt circuit is closed, the central control vehicle system cancels the reminder.

[0046] A driving safety control system of the present application is a graphene car heated seat cushion safety system that integrates seat heating, sitting posture monitoring, seat belt wearing detection and driving status analysis. The more detailed functions of the system are introduced as follows:

[0047] SBR pressure distribution sensors are distributed on the surface of the seat cushion, sensing the sitting posture and weight distribution of the driver and passengers in real time, and evaluating driving status through data analysis, such as fatigue, sleep or coma due to illness. Data collection is collected through the vehicle EUC, collecting resistance data, and analyzing thousands of real people. Write normal and abnormal programs based on the data. Data conversion (data standardization on the chip) is transmitted to the car's central control system (central control car system) to make a judgment. And trigger corresponding safety response measures accordingly, such as voice reminders when drowsy, and slowing down and parking on the side of the road if the reminder is invalid, and cooperating with other monitoring systems such as in-car cameras to analyze whether it is normal drowsiness, and analyze the results, such as symptoms such as fatigue driving or fever coma. Different treatments are made according to different states. The processing results will be continuously optimized and improved according to traffic safety and passenger safety.

[0048] The NTC temperature sensor is embedded in the seat cushion to accurately monitor the seat surface temperature. It automatically adjusts the heating power based on the ambient temperature and passenger preferences. For example, if a middle-aged passenger sets the precise temperature to 38 degrees, the controller (the controller in the ECU) controls the maximum temperature to 39 degrees. Heating stops when it reaches 39 degrees and starts when it is lower than 37 degrees. The temperature for child passengers is set to 32 degrees. Heating stops when the maximum temperature reaches 33 degrees and starts when it is lower than 31 degrees. The temperature for elderly passengers is set to 40 degrees. Heating starts when it is higher than 41 degrees and starts when it is lower than 39 degrees. The temperature is determined according to the preferences of different passengers. Ensure riding comfort.

[0049] The sitting posture sensor is combined with SBR data to further refine the sitting posture analysis, identify bad driving posture, and prevent driving risks caused by improper posture. SBR is a pressure sensor on the seat. In sensors such as strain gauges, when subjected to mechanical strain (such as pressure, displacement, force, etc.), the resistance wire or resistance film inside the sensor will deform, causing its resistance value to change. The program is set to the controller according to the weight of the passengers, and then the controller transmits a signal to the central control car system. For example, if the body weight is set to 30 kg and the total resistance value is greater than 30, it means that there is a passenger on the seat, reminding the passenger to fasten the seat belt. The seat belt alarm is lifted. The sitting posture sensor is combined with the SBR sensor to increase the number of sensors. When the passenger and driver are sitting, the body contacts the seat, and the resistance of each sensor is different at different force points. The resistance values ​​at different points are analyzed to analyze whether the sitting posture of the driver and the passenger is correct. Whether it affects safety, such as when the driver crosses his legs while driving, some sensors will have no data, or the data changes little, and then the data will be transmitted to the central control car system to make a reminder action, text reminder or voice reminder. If the reminder is invalid, the vehicle speed limit can be given to ensure safety. You can also slow down and stop, pull over, etc. If the sensor value does not change for a long time, it is analyzed as whether the driver is sleeping, and a text or voice reminder is made. If there is no response, the car can be slowed down or stopped. Repeated voice prompts are given. If there is no response, the SOS platform can be considered for processing, or the alarm can be used.

[0050] The seat belt detection system works with SBR and pressure sensor. When subjected to pressure, the resistance changes, and then the sensor transmits the signal to the controller, which transmits the signal to the central control system to remind passengers to fasten their seat belts. It detects whether the driver and passengers have fastened their seat belts, and prevents the vehicle from starting or issues an alarm if the driver does not fasten his seat belt. The alarm is lifted when the driver or passenger fastens his seat belt.

[0051] The control system receives data from various sensors and performs comprehensive analysis.

[0052] The central control system automatically adjusts the seat heating temperature, issues safety warnings or performs emergency stops based on the analysis results to ensure driving safety.

[0053] This application involves the intersection of automotive seat technology, heating systems, driving safety monitoring and intelligent control systems, specifically an intelligent and safe heating system for automotive seats that integrates graphene high-efficiency heating elements and multiple advanced sensor technologies. The system aims to provide drivers and passengers with a safer, more comfortable and convenient travel experience by optimizing seat comfort, improving driving safety and realizing intelligent management.

[0054] Based on the same inventive concept, in an exemplary embodiment, Figure 1As shown, the embodiment of the present application also provides a car seat cushion. The car seat cushion is applied to the above-mentioned driving safety monitoring system, and the car seat cushion includes a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion. The pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time and generate resistance data of different points.

[0055] As an optional implementation, the pressure detection component includes: multiple SBR pressure distribution sensors and multiple sitting posture sensors. The multiple SBR pressure distribution sensors and multiple sitting posture sensors are distributed on the surface of the seat cushion; the multiple SBR pressure distribution sensors are used to sense the pressure of different points on the driver's buttocks on the seat cushion in real time and generate first resistance data; the multiple sitting posture sensors are used to sense the pressure of different points on the driver's back and buttocks on the seat cushion in real time and generate second resistance data.

[0056] like Figure 1 As shown, the sensing layer composed of multiple SBR pressure distribution sensors and multiple sitting posture sensors presents a pattern array structure, and its shape can be designed according to the product form, with strong plasticity. A variety of data can be tested. Figure 1 The yellow circle in the figure represents the NTC temperature sensor, the blue circle represents the SBR pressure distribution sensor, and the red circle represents the sitting position sensor.

[0057] The car seat cushion of the present application integrates multiple products in one, which is different from the traditional car sensor with single function and complicated installation. It only needs one step to be installed in place. It has multiple functions in one.

[0058] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A driving safety monitoring system, characterized in that: The driving safety monitoring system comprises: a car seat cushion and a control system; The automobile seat cushion comprises a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion; The pressure detection component is connected to the control system; The pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time, and transmit the resistance data of different points sensed to the control system; The control system is used to determine whether the driver's driving state and sitting posture are abnormal based on the resistance data at different points, and if the driving state or sitting posture is abnormal, an early warning reminder signal is generated.

2. The driving safety monitoring system according to claim 1, characterized in that: The pressure detection assembly includes: a plurality of SBR pressure distribution sensors and a plurality of sitting posture sensors; Multiple SBR pressure distribution sensors and multiple sitting posture sensors are distributed on the surface of the seat cushion; A plurality of SBR pressure distribution sensors and a plurality of sitting posture sensors are respectively connected to the control system; The plurality of SBR pressure distribution sensors are used to sense the pressure at different points of the driver's buttocks on the seat cushion in real time, and transmit the sensed first resistance data to the control system; The plurality of sitting posture sensors are used to sense the pressure of different points on the driver's back and buttocks on the seat cushion in real time, and transmit the second resistance data generated by the sensing to the control system; The control system is used to determine whether the driver's driving state is abnormal based on the first resistance data and a preset driving state evaluation standard, and if the driving state is abnormal, generate a state warning reminder signal; The control system is also used to determine whether the driver's sitting posture is abnormal based on the second resistance data, and if the sitting posture is abnormal, generate a sitting posture warning reminder signal.

3. The driving safety monitoring system according to claim 2, characterized in that: When the car seat cushion is also arranged on a passenger seat: The plurality of SBR pressure distribution sensors are used to sense the pressure at different points on the buttocks of the passenger on the seat cushion in real time, and transmit the sensed third resistance data to the control system; The control system is also used to determine whether there is a driver on the vehicle seat based on the first resistance data, or to determine whether there is a passenger on the vehicle seat based on the third resistance data. If it is determined that there is a driver or a passenger, a seat belt reminder signal is generated.

4. The driving safety monitoring system according to claim 1, characterized in that: The seat cushion is a graphene heating pad.

5. The driving safety monitoring system according to claim 4, characterized in that: The pressure detection component also includes: an NTC temperature sensor; The NTC temperature sensor is embedded inside the graphene heating pad; NTC temperature sensor is connected to the control system; The NTC temperature sensor is used to monitor the surface temperature of the vehicle seat in real time and transmit it to the control system; The control system is used to control the temperature of the graphene heating pad to be equal to a preset temperature according to the real-time surface temperature of the vehicle seat.

6. The driving safety monitoring system according to claim 1, characterized in that: The control system is an engine control unit.

7. A driving safety control system, characterized in that: The driving safety control system comprises: a central control vehicle system and a driving safety monitoring system according to any one of claims 1 to 6; The central control vehicle system is connected to the control system in the driving safety monitoring system; The control system is used to transmit the generated warning reminder signal to the central control vehicle system; The central control vehicle system is used to trigger safety response measures according to the early warning reminder signal.

8. The driving safety control system according to claim 7, characterized in that: The driving safety control system further includes: a seat belt circuit; The central control vehicle system is used to receive the seat belt reminder signal generated by the control system and remind the driver to fasten the seat belt; After prompting the driver to fasten the seat belt, if the seat belt line is open, the central control vehicle system controls the vehicle to prohibit starting or sound an alarm; if the seat belt line is closed, the central control vehicle system cancels the prompt.

9. A car seat cushion, characterized in that: The car seat cushion is applied to the driving safety monitoring system according to any one of claims 1 to 6, and the car seat cushion comprises a seat cushion and a pressure detection component; the pressure detection component is arranged on the seat cushion; The pressure detection component is used to sense the pressure of different points of the driver on the seat cushion in real time and generate resistance data of different points.

10. The car seat cushion according to claim 9, characterized in that: The pressure detection assembly includes: a plurality of SBR pressure distribution sensors and a plurality of sitting posture sensors; Multiple SBR pressure distribution sensors and multiple sitting posture sensors are distributed on the surface of the seat cushion; The plurality of SBR pressure distribution sensors are used to sense the pressure of different points of the driver's buttocks on the seat cushion in real time and generate first resistance data; The plurality of sitting posture sensors are used to sense the pressure of different points on the driver's back and buttocks on the seat cushion in real time and generate second resistance data.

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