A new in-vehicle life left detection system and method

Abstract

The present application relates to the field of automobile safety technology, more particularly to a novel in-vehicle life left detection system and method, comprising an in-vehicle occupant monitoring module OMS, an in-vehicle monitoring radar IMR and a body control system BCM; the IMR respectively interacts with the OMS and the BCM; the OMS is used to detect the position information and age information of the in-vehicle occupant, and the OMS sends the position information and age information to the IMR; the IMR is used to detect life information; the BCM is used to send vehicle state information and control the vehicle, and the BCM sends the vehicle state information to the IMR; the IMR determines the alarm level according to the position information, age information, life information and vehicle state information of the occupant and alarms, and / or sends control information to the BCM. The OMS can determine whether a child is left in the rear row of the vehicle, generate corresponding age information and position information and send them to the in-vehicle monitoring radar IMR, and the IMR can effectively eliminate the interference of stationary objects in the vehicle and monitor the vital signs of the living body in the vehicle in real time in the state of vehicle stop and lock.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile safety, more particularly, to a novel in-vehicle life left detection system and method. BACKGROUND

[0002] Deaths caused by children or pets being left in the car often touch the heart, due to long time in the closed car, with the change of temperature in the car and the accumulation of harmful gases, symptoms such as heat stroke and oxygen deficiency occur, they cannot take self-help measures, eventually leading to tragedy, so the in-vehicle life left detection device is extremely important. Only single scheme such as in-vehicle monitoring radar, infrared detector is used to monitor the life left. The in-vehicle monitoring radar monitors the life left, which will be affected by typhoon, hail, heavy rain, trailer, stereo parking space lifting, and false alarm, which will bring trouble to the user; the infrared is easily disturbed by various heat sources, the passive infrared penetration is poor, the personnel detection precision is low, especially when the environmental temperature and the body temperature are close, the detection ability and sensitivity of the infrared detector decrease obviously, and the detection precision is insufficient.

[0003] At present, a multifunctional safety system and method for real-time life detection of a passenger car is disclosed, which detects whether other personnel or animals with vital signs exist when the output lock car signal is detected, to prompt the driver. In addition, it is also considered how to provide a comfortable environment when a child or an old person is left in the car, and measures for emergency treatment are provided, so that the probability of safety accidents caused by locking the car can be greatly reduced. The system monitors the life in the car through the cooperation of the infrared detector and the microwave radar, but the detection accuracy of the infrared detector will be affected by the light, temperature, heat source and other environmental factors, resulting in false alarm. The infrared penetration is poor, the infrared radiation of the human body is easily blocked and is easily disturbed by radio frequency radiation. When the environmental temperature and the body temperature are close, the detection and sensitivity decrease obviously, sometimes causing short-term failure, and the life detection precision is insufficient; the microwave radar will be affected by typhoon, hail, heavy rain, trailer, stereo parking space lifting, and false alarm. Even the movement of daily necessities such as ornaments, toys, and bottled water in the car will cause radar false alarm, which will bring trouble to the user and give the user a bad experience. SUMMARY

[0004] In order to solve the defects of the infrared detector and the microwave radar cooperating to monitor the life in the car, the present application provides a novel in-vehicle life left detection system and method, which improves the accuracy of in-vehicle life left detection through OMS and IMR fusion detection.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is:

[0006] The new in-vehicle life left detection system comprises an in-vehicle occupant monitoring module OMS, an in-vehicle monitoring radar IMR and a body control system BCM; the IMR respectively exchanges information with the OMS and the BCM; the OMS is used for detecting position information and age information of in-vehicle occupants, and the OMS sends the position information and age information to the IMR; the IMR is used for detecting life information, and the life information comprises breathing information and heartbeat information; the BCM is used for sending vehicle state information and controlling vehicle state, and the BCM sends the vehicle state information to the IMR; the IMR determines alarm level according to the position information, age information, life information and vehicle state information of the occupants and alarms and / or sends control information to the BCM.

[0007] The in-vehicle occupant monitoring module OMS is used for in-vehicle living body detection, can determine whether pets or children are left in the rear row of the vehicle, generates corresponding age information and position information and sends the information to the in-vehicle monitoring radar IMR, wherein the IMR is a high-precision and high-performance millimeter wave radar, can effectively eliminate the interference of in-vehicle stationary objects even in the state of vehicle stop and lock, can monitor life information in the vehicle in real time, including breathing information and heartbeat information, the working frequency of the radar is 60GHZ, can quickly find the life left in the vehicle at a very high detection frequency, and then output an alarm to ensure the safety of in-vehicle life; the IMR is arranged above the two rows of seats, can effectively avoid detection interference. The body control system BCM is used for sending vehicle state information and controlling the body, and the IMR can control the BCM to take corresponding emergency measures according to the feedback signal of the BCM.

[0008] As one of the preferred schemes, the OMS sends the age information to the IMR through a gateway module GWM.

[0009] The gateway module GWM is the core of the internal communication local area network of the vehicle, through which information sharing on each bus and network management and fault diagnosis functions in the vehicle can be realized. The GWM has the function of forwarding messages and diagnosing the state of bus messages. Therefore, the GWM can forward the occupant age information generated by the OMS to the IMR. The operation of the vehicle is processed and calculated by many computer modules, and since there are quite a number of computer modules in the vehicle at present, data exchange and sharing are required between the modules. Therefore, the GWM is needed for coordination in the whole vehicle module.

[0010] As one of the preferred schemes, the OMS is provided with a camera for collecting the age information and position information.

[0011] An occupant monitoring camera is arranged at a rearview mirror position and left and right B-pillar positions in the vehicle, the camera has a shooting range covering a driver and passenger area, a shooting angle meeting common shooting scenes, and a resolution reaching a common photo quality. To improve the accuracy of the left-behind life detection, the occupant monitoring camera and the in-vehicle monitoring radar take the age and occupant position information provided by the camera as the identity and age information of the left-behind life in the vehicle for the radar to make different levels of alarm processing, thereby improving the safety of the vehicle and ensuring the safety of the passengers.

[0012] The camera and the radar are fused for detection, the camera can determine the age information of the people in each seat, thereby determining whether the left-behind children in the vehicle are accompanied by adults, and the position information of the left-behind children in the front row or the rear row is provided to the radar for fusion judgment, thereby eliminating false alarms caused by extreme weather and improving the satisfaction and trust of the user.

[0013] As one of the preferred solutions, the vehicle information includes five-door switch state information and power gear information of the vehicle.

[0014] The BCM can detect the switch state of the vehicle door and the power gear information and send it to the IMR, and the IMR determines whether the vehicle is in a locked state and whether it is in a starting state based on this information. If the vehicle is in an off state and a locked state, the in-vehicle living body left-behind detection needs to be performed to avoid accidents.

[0015] As one of the preferred solutions, the IMR determines the alarm level according to the age information and the vehicle state information; when the OMS and the IMR fusion detection has an adult or an old person, the IMR generates a first-level alarm signal; when the OMS and the IMR fusion detection has a child signal in the front row of the vehicle, the IMR generates a second-level alarm signal; when the OMS detection and the IMR fusion have a child signal in the rear row of the vehicle, the IMR generates a third-level alarm signal; and the IMR alarms according to the first-level alarm signal, the second-level alarm signal, and the third-level alarm signal.

[0016] As one of the preferred solutions, the IMR sends a mobile terminal alarm signal to a vehicle networking system TBOX according to the first-level alarm signal, the second-level alarm signal, and the third-level alarm signal; and the TBOX sends the mobile terminal alarm signal to a mobile phone APP through a car remote service module TSP for alarm.

[0017] As one of the preferred solutions, when the IMR alarms according to the secondary alarm signal or the tertiary alarm signal, the IMR calculates the alarm duration; when the alarm duration reaches a preset first alarm time length, the BCM controls the engine start according to the start signal sent by the IMR, and the air conditioner controller HVAC opens the air conditioner according to the opening signal sent by the IMR; when the alarm duration reaches a preset second alarm time length, the IMR generates an emergency call signal and sends it to the TSP through the TBOX to call the owner from the background to alarm; the first alarm time length is less than the second alarm time length.

[0018] The first time length is 5 minutes, and the second time length is 10 minutes; the OMS detects the signal of adults or old people in the vehicle, and then performs mobile terminal alarm - SMS reminder and matched APP reminder, and the owner can click the APP to remotely view the situation in the vehicle and confirm the left in the vehicle.

[0019] The OMS detects children in the front row and the IMR judges according to the detection time fusion, and then performs mobile terminal alarm; the alarm timing reaches 5 minutes, requests to start the engine, opens the air conditioner in auto mode, and performs internal circulation for a maximum of 30 minutes; the alarm timing reaches 10 minutes, sends an emergency call signal to the TSP, and the background calls the owner's phone to prompt the owner that there is a left in the vehicle.

[0020] As one of the preferred solutions, when the IMR alarms according to the tertiary alarm signal, the BCM controls the vehicle horn to alarm according to the horn signal sent by the IMR.

[0021] The OMS detects children in the rear row and the IMR judges according to the detection time fusion, and performs mobile terminal alarm; the vehicle horn anti-theft alarm; the alarm timing reaches 5 minutes, requests to start the engine, opens the air conditioner in auto mode, and performs internal circulation for a maximum of 30 minutes; the alarm timing reaches 10 minutes, sends an emergency call signal to the TSP, and the background calls the owner's phone to prompt the owner that there is a left in the vehicle.

[0022] As one of the preferred solutions, it further includes a door control system DCM for detecting the state of the child lock of the vehicle door; the DCM and the IMR exchange information.

[0023] The DCM is used to detect the state of the child lock, and when the child lock is in the open state and the engine is in the off state, it is necessary to perform in-vehicle living body detection, and the DCM sends the state of the child lock to the IMR for further judgment.

[0024] A novel in-vehicle life left detection method, which utilizes a novel in-vehicle life left detection system to monitor the living body in the vehicle, comprising the following steps:

[0025] S1. The IMR determines whether the left-over detection is needed according to the vehicle state information fed back by the BCM, and if the power supply of the vehicle is in the off state, the five doors are completely closed and in the lock state, step S2 is entered;

[0026] S2. The OMS detects the age information and position information of the in-seat passenger and sends to the IMR;

[0027] S3. The IMR determines the alarm level according to the age information and position information;

[0028] S4. The IMR alarms the owner according to different alarm levels.

[0029] The OMS and the IMR cooperate to detect the life in the vehicle, which can improve the detection accuracy. The position attribute of the personnel detected by the camera is transmitted to the radar, the interference caused by the extreme weather, the three-dimensional parking space of the trailer and the like to the radar is eliminated, the false alarm of the radar is eliminated, and the accuracy of the left-over life detection is improved. The IMR makes a decision to alarm in different levels, and three levels of alarms are implemented for different degrees of left-over, the mobile phone end reminder, the remote start of the air conditioner, the background dialing and the vehicle end alarm, which pass through the whole detection link and guarantee the life safety of the left-over children in the vehicle.

[0030] Compared with the prior art, the present application has the beneficial effects that: the present application discloses a novel left-over life detection system and method in the vehicle, the camera and the radar are fused for detection, the camera can determine the age information of the personnel in each seat, so as to determine whether the left-over children in the vehicle are accompanied by adults, and the position information of the left-over children in the front row or the rear row is given to the radar for fusion judgment. Different levels of alarms such as SMS reminder, APP reminder, starting of the air conditioner, dialing and vehicle end alarm are taken according to the left-over situation in the vehicle. The false alarm caused by the extreme weather and the like is eliminated, and the user's satisfaction and trust are improved. The radar detection result fuses the age attribute of the personnel in each seat, three levels of alarms are implemented for different degrees of left-over, the mobile phone end reminder, the remote start of the air conditioner, the background dialing and the vehicle end alarm, and the risk of accidents is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a link relationship diagram of the novel left-over life detection system in the vehicle.

[0032] Figure 2 is a flowchart of the novel left-over life detection method 1.

[0033] Figure 3 is a flowchart of the novel left-over life detection method 2. DETAILED DESCRIPTION

[0034] The drawings are only used for illustrative description, and cannot be understood as a limitation to the patent; in order to better illustrate the embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; it is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative description, and cannot be understood as a limitation to the patent.

[0035] Embodiment 1

[0036] As Figure 1 shown, the present embodiment provides a new type of in-vehicle life left detection system, which comprises an in-vehicle occupant monitoring module OMS, an in-vehicle monitoring radar IMR and a body control system BCM; the IMR respectively interacts with the OMS and the BCM; wherein the OMS is used to detect the age information of the in-vehicle occupant; the IMR is used to determine the alarm level and to alarm; and the BCM is used to send the vehicle state information and to control the body.

[0037] Because the temperature of children rises at a speed of 3-5 times that of adults, and the temperature reaches 41.7℃, it may die of "heat stroke", and in recent years, the number of events of children being locked in the car and resulting in death has increased. In order to ensure the safety of in-vehicle life bodies such as children, the in-vehicle life left detection must be accurate and fast, so as to meet the needs of consumers for in-vehicle safety. The existing technology uses millimeter wave radar and infrared detector for detection, and the millimeter wave radar irradiates the human body by emitting electromagnetic waves, receives the echo after signal processing, and separates out the breathing, heartbeat and life information. However, this detection method will be affected by typhoon, hail, heavy rain, trailer, stereo parking space lifting and other factors to cause false alarm. Even if there are ornaments, toys, bottled water and other daily necessities in the car, the shaking will cause radar false alarm; the detection accuracy of the infrared detector will be affected by light, temperature, heat source and other environmental factors to cause false alarm, the infrared penetration is poor, the infrared radiation of the human body is easy to be blocked and is easy to be disturbed by radio frequency radiation. When the environmental temperature and the human body temperature are close, the detection and sensitivity are obviously decreased, sometimes causing short-term failure, and the life detection accuracy is insufficient. Therefore, a detection system capable of accurately and timely reminding the vehicle owner that there is a life left in the vehicle is needed.

[0038] Specifically, the OMS sends age information to the IMR; the BCM sends vehicle state information to the IMR; the IMR determines the alarm level according to the age information and the vehicle state information and performs the alarm. Among them, the vehicle information includes the five-door opening and closing state information and the power gear information. The BCM can detect the state information of the five doors of the vehicle, and feed back the real-time detected information to the IMR. When the IMR receives the information that the vehicle power is in the OFF gear, the five doors are from not completely closed to completely closed, and the vehicle is in the locked state, that is, in combination with the passenger age information sent by the OMS, the IMR itself position detection information is used to detect the life body left in the vehicle, which can effectively avoid unnecessary detection and reduce the probability of false alarm.

[0039] The new vehicle life left detection system provided by the embodiment further includes a door control system DCM for detecting the child lock state of the door; the DCM and the IMR exchange information. The DCM is used to detect the child lock state. When the child lock is in the open state and the engine is in the off state, it is necessary to perform the in-vehicle life body detection, and the DCM sends the state of the child lock to the IMR for further judgment. After receiving the door state information and the power gear information sent by the DCM and the BCM, the IMR comprehensively judges whether the in-vehicle living body detection should be performed. The combination of multiple information can improve the accuracy of detection.

[0040] Further, the OMS is provided with a camera for collecting age information. The passenger monitoring camera is arranged at the positions of the rearview mirror and the left and right B pillars in the vehicle. The camera shooting range covers the driving area, the shooting angle meets the common shooting scene, and the resolution can reach the quality of common photos. In order to improve the accuracy of life left detection, the passenger monitoring camera and the in-vehicle monitoring radar use the age and passenger position information provided by the camera as the radar to judge the identity and age information of the life left in the vehicle and perform different level alarm processing, thereby improving the safety of vehicle use and protection. Among them, the OMS sends age information to the IMR through the gateway module GWM. The gateway module GWM is the core of the internal communication local area network of the vehicle. Through it, the sharing of information on each bus and the network management and fault diagnosis functions of the vehicle interior can be realized. The GWM has the function of forwarding messages and diagnosing the state of bus messages. Therefore, the GWM can forward the passenger age information generated by the OMS to the IMR. The operation of the vehicle is processed and calculated by many computer modules. Since there are quite a few computer modules in the vehicle at present, and the data between each module needs to be exchanged and processed, shared. Therefore, GWM is needed to coordinate in the whole vehicle module.

[0041] Camera and radar fusion detection, the camera can determine the age information of each seat personnel, so as to determine whether the left child in the car is accompanied by an adult, and the position information of the left child in the front row or the rear row is given to the radar for fusion judgment, which eliminates false positives caused by extreme weather and the like, and improves the satisfaction and trust of users.

[0042] When the IMR generates a corresponding alarm signal according to the passenger age information fed back by the OMS, in combination with the position information and vehicle state information detected by the IMR itself, it indicates that a life body is left in the car and needs to remind the owner to pay attention to the left problem. The OMS sends the detected age attributes of each seat personnel to the IMR through the GWM; the BCM sends the five-door switch state and power gear information to the IMR; the IMR sends a mobile terminal alarm to the TBOX and TSP to the APP to remind the owner, and the owner can click the APP to remotely view the situation in the car and confirm the left in the car.

[0043] The owner can cancel the alarm through the mobile terminal, that is, remotely cancel through the APP; or cancel the alarm by unlocking the vehicle or opening the door.

[0044] Embodiment 2

[0045] The embodiment provides a new type of in-vehicle life left detection system, the IMR determines the alarm level according to the age information and the vehicle state information; the IMR generates a first alarm signal when the OMS detects an adult or an old person; the IMR generates a second alarm signal when the OMS detects a child signal in the front row of the car; the IMR generates a third alarm signal when the OMS detects a child signal in the rear row of the car; the IMR alarms according to the first alarm signal, the second alarm signal and the third alarm signal. The IMR sends a mobile terminal alarm signal to the vehicle networking system TBOX according to the first alarm signal, the second alarm signal and the third alarm signal; the TBOX sends the mobile terminal alarm signal to the mobile phone APP through the automobile remote service module TSP for alarm.

[0046] When the IMR alarms according to the second alarm signal or the third alarm signal, the IMR calculates the alarm duration; when the alarm duration reaches a preset first alarm time length, the BCM controls the engine to start according to the start signal sent by the IMR, and the air conditioner controller HVAC opens the air conditioner according to the opening signal sent by the IMR; when the alarm duration reaches a preset second alarm time length, the IMR generates a dialing emergency call signal and sends it to the TSP through the TBOX to dial a call to the owner by the background for alarm; the first alarm time length is less than the second alarm time length.

[0047] The first time length is 5 minutes, and the second time length is 10 minutes; the OMS detects that there is a child in the front row, and the IMR judges according to the detection time fusion, and then performs mobile terminal alarm; the alarm timing reaches 5 minutes, requests to start the engine to open the air conditioner in the auto mode, and the internal circulation is up to 30 minutes; the alarm timing reaches 10 minutes, sends a dial emergency telephone signal to the TSP, and the background dials the owner's phone, prompting the owner that there is a left child in the car.

[0048] When the IMR alarms according to the three-level alarm signal, the BCM controls the vehicle end siren to alarm according to the siren signal sent by the IMR. The OMS detects that there is a child in the back row, and the IMR judges according to the detection time fusion, and then performs mobile terminal alarm; the vehicle end siren anti-theft alarm attracts the attention of passers-by around the vehicle through the siren; the alarm timing reaches 5 minutes, requests to start the engine to open the air conditioner in the auto mode, and the internal circulation is up to 30 minutes; the alarm timing reaches 10 minutes, sends a dial emergency telephone signal to the TSP, and the background dials the owner's phone, prompting the owner that there is a left child in the car.

[0049] Embodiment 3

[0050] As Figures 2-3 shown, the embodiment provides a new type of in-vehicle life left detection method, which uses a new type of in-vehicle life left detection system to monitor the living body in the vehicle, including the following steps:

[0051] S1. The IMR judges whether it needs to perform left detection according to the vehicle state information fed back by the BCM. If the power of the vehicle is in the off state, the five doors are completely closed and in the locked state, step S2 is entered;

[0052] S2. The OMS detects and the IMR fuses the age information and position information of the seated passenger and sends them to the IMR;

[0053] S3. The IMR determines the alarm level according to the age information and position information;

[0054] S4. The IMR alarms the owner according to different alarm levels, and sends control information to the BCM.

[0055] The OMS and the IMR cooperate to detect the living body in the vehicle, which can improve the accuracy of detection. The position attribute of the personnel detected by the camera is conveyed to the radar, which eliminates the interference caused by extreme weather, three-dimensional parking of the towed vehicle, etc. on the radar, eliminates the false alarm of the radar, and improves the accuracy of the living body left detection. The IMR decides to alarm in different levels, implements three levels of alarm for different degrees of left, mobile terminal reminder, remote start of air conditioner, background dialing and vehicle end alarm, which breaks through the whole detection link and guarantees the life safety of the left child in the vehicle.

[0056] Specifically, by turning on the in-vehicle life left behind auxiliary reminder with the APP, the BCM sends the power OFF mode, five doors from the non-fully closed state to the fully closed state and the vehicle in the lock state to the IMR, the OMS outputs the information of the people in each seat to the IMR, and then the IMR comprehensively judges according to the information fed back by the BCM and the OMS, judges the alarm level, and makes corresponding actions according to different alarm levels, that is:

[0057] When the first level alarm, the OMS detects the signal of adults or old people in the vehicle, the IMR fusion judgment is carried out, the mobile terminal alarm is carried out, the APP reminder is carried out, the owner can click the APP to remotely view the situation in the vehicle and confirm the left behind in the vehicle.

[0058] When the second level alarm, the OMS detects that there is a child in the front row and the IMR fusion judgment is carried out according to the detection time, the mobile terminal alarm is carried out; the IMR calculates the alarm timing to 5 minutes, requests to start the engine and open the air conditioning auto mode, and the internal circulation is started; the IMR calculates the alarm timing to 10 minutes, sends the emergency telephone signal to the TSP, and the owner's phone is dialed in the background, prompting the owner that there is left behind in the vehicle.

[0059] When the third level alarm, the OMS detects that there is a child in the rear row and the IMR fusion judgment is carried out according to the detection time, the mobile terminal alarm is carried out; the vehicle end siren anti-theft alarm is carried out; the IMR calculates the alarm timing to 5 minutes, requests to start the engine and open the air conditioning auto mode, and the internal circulation is started; the IMR calculates the alarm timing to 10 minutes, sends the emergency telephone signal to the TSP, and the owner's phone is dialed in the background, prompting the owner that there is left behind in the vehicle. The owner can cancel the alarm through the mobile terminal, that is, cancel remotely through the APP; or cancel the alarm by unlocking the vehicle or opening the door.

[0060] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A novel in-vehicle life vest detection system characterized by: The system comprises an occupant monitoring module (OMS), an in-vehicle monitoring radar (IMR), and a body control system (BCM); the IMR exchanges information with the OMS and the BCM; The OMS is configured to detect position information and age information of the occupant in the vehicle and send the position information and the age information to the IMR; The IMR is configured to detect vital information, which includes breathing information and heartbeat information; The BCM is configured to send vehicle state information and control the vehicle state, and send the vehicle state information to the IMR; The IMR determines the alarm level according to the position information, age information, vital information, and vehicle state information of the occupant and sends a control signal to the BCM; The IMR determines the alarm level according to the age information and the position information; When the OMS and the IMR jointly detect an adult or an old person, the IMR generates a first-level alarm signal; When the OMS and the IMR jointly detect a child signal in the front row of the vehicle, the IMR generates a second-level alarm signal; When the OMS and the IMR jointly detect a child signal in the rear row of the vehicle, the IMR generates a third-level alarm signal; The IMR alarms according to the first-level alarm signal, the second-level alarm signal, and the third-level alarm signal; The system further comprises a door control system (DCM) configured to detect the state of a child lock of the vehicle door; the DCM exchanges information with the IMR; when the child lock is in an open state and the engine is in an off state, the DCM sends the state of the child lock to the IMR for judgment.

2. The new in-vehicle life vest detection system of claim 1, wherein: The OMS sends the age information to the IMR through a gateway module (GWM).

3. The new in-vehicle life detection system of claim 2, wherein: The OMS is provided with a camera configured to collect the age information and the position information.

4. The new in-vehicle life vest detection system of claim 1, wherein: The vehicle state information includes five-door switch state information and power gear information of the vehicle.

5. The new in-vehicle life vest detection system of claim 1, wherein: The IMR sends a mobile phone alarm signal to a vehicle networking system (TBOX) according to the first-level alarm signal, the second-level alarm signal, and the third-level alarm signal; the TBOX sends the mobile phone alarm signal to a mobile phone APP through a telematics service module (TSP) for alarm.

6. The new in-vehicle life detection system of claim 5, wherein: When the IMR alarms according to the second-level alarm signal or the third-level alarm signal, the IMR calculates the alarm duration; When the alarm duration reaches a preset first alarm time length, the BCM controls the engine to start according to a start signal sent by the IMR, and a heating, ventilation, and air conditioning (HVAC) controller opens the air conditioner according to an open signal sent by the IMR; When the alarm duration reaches a preset second alarm time length, the IMR generates an emergency call signal and sends the signal to the TSP through the TBOX to make a call to the owner for alarm; The first alarm time length is shorter than the second alarm time length.

7. The new in-vehicle life detection system of claim 6, wherein: When the IMR alarms according to the third-level alarm signal, the BCM controls the vehicle to sound the horn according to a horn signal sent by the IMR for alarm.

8. A new method for detecting the presence of a living being in a vehicle, using the new system for detecting the presence of a living being in a vehicle according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: S1. The IMR determines whether it needs to perform the left-behind detection according to the vehicle state information fed back by the BCM. If the power supply of the vehicle is in the off state, the five doors are completely closed and in the locked state, it goes to step S2; S2. The OMS and the IMR fusion detect the age information and the position information of the passengers in the vehicle and send them to the IMR; S3. The IMR determines the alarm level according to the age information and the position information; S4. The IMR alarms the owner according to different alarm levels and / or sends control information to the BCM.

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