A detection system, method and vehicle for avoiding children left behind in a vehicle

Abstract

The application provides a detection system, method and vehicle for avoiding children left in a vehicle, and belongs to the technical field of vehicle safety. The system comprises a BCM vehicle body controller. The BCM vehicle body controller is connected with a central control unit, a door unit, a steering lamp unit, a vehicle lock unit, an electric horn and a vehicle networking intelligent terminal T-BOX. The central control unit is connected with a surround-view camera unit. After the BCM vehicle body controller recognizes an unlocking signal, the central control unit is woken up. When it is recognized that only children are left in the vehicle after all the doors are closed, an alarm state is triggered, and the steering lamp unit, the electric horn and the vehicle networking intelligent terminal T-BOX are controlled to alarm. The central control unit collects the number change of adults and children in the vehicle through the surround-view camera unit to collect the on-vehicle picture and the off-vehicle picture. The application realizes the detection and alarm of children left in the vehicle by means of the existing devices of the vehicle without increasing new components, and reduces the overall vehicle cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of vehicle safety technology, and particularly relates to a detection system and method for avoiding children left in a vehicle and a vehicle. BACKGROUND

[0002] At present, with the popularization of vehicles, great convenience is brought to human daily traffic, but recently, the safety problem caused by children left alone in the vehicle frequently occurs. Since the internal space of the vehicle, especially the domestic car, is small and has good sealing, external air is difficult to enter, and the temperature in the vehicle rises rapidly under the sun, which finally leads to the difficulty of survival of children left in the vehicle for a long time in the high-temperature and oxygen-deficient environment. The children who are forgotten usually cannot escape by themselves and can only passively wait for rescue. Once rescue cannot be obtained in time, the children will eventually suffer from illness or even death. Therefore, the problem of children left in the vehicle is worth special attention.

[0003] At present, in order to reduce the risk of children left behind, a microwave radar and a camera sensor deployed in the vehicle are usually used for child left-behind detection. Generally, the physiological characteristics or behavior characteristics of children, such as breathing and heartbeat, are detected to determine whether the children are in the vehicle. However, this method cannot balance the reliability and cost of child left-behind detection. On the one hand, the detection cost is too high under the premise of ensuring the detection accuracy, and on the other hand, the detection accuracy is not enough to affect the detection reliability under the premise of controlling the detection cost.

[0004] Therefore, in view of the above defects in the prior art, it is necessary to provide a detection system, method and vehicle for avoiding children left in a vehicle. SUMMARY

[0005] In view of the current child left-behind detection, a microwave radar and a camera sensor deployed in the vehicle are usually used for child left-behind detection. Generally, the physiological characteristics or behavior characteristics of children, such as breathing and heartbeat, are detected to determine whether the children are in the vehicle. However, this method cannot balance the reliability and cost of child left-behind detection. On the one hand, the detection cost is too high under the premise of ensuring the detection accuracy, and on the other hand, the detection accuracy is not enough to affect the detection reliability under the premise of controlling the detection cost. The present application provides a detection system, method and vehicle for avoiding children left in a vehicle to solve the above technical problems.

[0006] In a first aspect, the present application provides a detection system for avoiding children left in a vehicle, comprising a BCM vehicle body controller.

[0007] The BCM vehicle body controller is connected with a central control unit, a door unit, a steering light unit, a vehicle lock unit, an electric horn and a vehicle networking intelligent terminal T-BOX.

[0008] The central control unit is connected with a surround-view camera unit.

[0009] The BCM body controller wakes up the central control unit after recognizing the unlocking signal through the vehicle lock unit, and triggers an alarm state when only children are in the vehicle after all the vehicle doors are closed, controls the turn signal unit, the electric horn and the T-BOX of the vehicle networking intelligent terminal to alarm;

[0010] The central control unit collects the number of adults and children in the vehicle through the surround view camera unit to collect the boarding and alighting pictures.

[0011] Further, the vehicle door unit includes a front left door, a rear left door, a front right door and a rear right door.

[0012] The surround view camera unit includes a left camera and a right camera.

[0013] The right camera collects the boarding and alighting pictures of the personnel of the front right door and the rear right door, and the left camera collects the boarding and alighting pictures of the personnel of the front left door and the rear left door.

[0014] Further, the vehicle lock unit includes a remote key.

[0015] The turn signal unit includes a left turn signal and a right turn signal.

[0016] The turn signal unit receives the control signal of the BCM body controller in the alarm state and enters the double flashing state; the T-BOX of the vehicle networking intelligent terminal receives the control signal of the BCM body controller in the alarm state and generates an alarm information to send to the owner's mobile phone.

[0017] In a second aspect, the present application provides a detection method for avoiding children left in the vehicle, comprising the following steps:

[0018] S1. The BCM body controller wakes up the central control unit after receiving the unlocking signal through the vehicle lock unit.

[0019] S2. The central control unit collects the boarding and alighting pictures of the personnel through the surround view camera unit, identifies the figure elements, analyzes the number of adults and children boarding and alighting, records the changes of the number of adults and children in the vehicle, and identifies whether it is a state of only children in the vehicle.

[0020] S3. The BCM body controller alarms through the turn signal unit and the electric horn when only children are in the vehicle after the vehicle lock receives the signal that all four doors of the vehicle are closed, generates an alarm information, and sends the alarm information to the owner's mobile phone through the T-BOX of the vehicle networking intelligent terminal.

[0021] Further, the step S1 specifically includes the following steps:

[0022] S11. The BCM body controller wakes up the central control unit after receiving the unlocking signal of the remote key.

[0023] S12. After the central control unit is started, the left camera and the right camera of the surround view camera unit are activated.

[0024] Further, the step S2 includes the following specific steps:

[0025] S21. The central control unit receives the boarding picture in the boarding state collected by the surround view camera unit, identifies the character element, confirms the number of adults and the number of children boarding according to the character element, and records them;

[0026] S22. The central control unit receives the alighting picture in the alighting state collected by the surround view camera unit, identifies the character element, confirms the number of adults and the number of children alighting according to the character element, and records them;

[0027] S23. The central control unit compares the number of adults and the number of children boarding and the number of adults and the number of children alighting, and identifies whether it is a child-only-in-vehicle state according to the comparison result;

[0028] If yes, go to step S24;

[0029] If no, the vehicle normally responds to subsequent operations, and the process ends;

[0030] S24. The central control unit notifies the BCM vehicle body controller of the child-only-in-vehicle state, and goes to step S3. Further, the step S21 includes the following specific steps:

[0031] S211. The left camera collects the picture in the state change process of the left front door from opening to closing and the picture in the state change process of the left rear door from closing to opening as the boarding picture, and the right camera collects the picture in the state change process of the right front door from opening to closing and the picture in the state change process of the right rear door from closing to opening as the boarding picture, and transmits the boarding picture to the central control unit;

[0032] S212. The central control unit extracts the character element from the boarding picture, identifies the adults, children and their respective numbers in the character element, and records the number of adults and the number of children boarding after the vehicle speed is greater than 0;

[0033] The step S22 includes the following specific steps:

[0034] S221. The right camera collects the picture in the state change process of the right front door from closing to opening and then to closing and the picture in the state change process of the right rear door from closing to opening, and the left camera collects the picture in the state change process of the left front door from closing to opening and then to closing and the picture in the state change process of the left rear door from closing to opening and then to closing, as the alighting picture, and transmits the alighting picture to the central control unit;

[0035] S222. The central control unit extracts the figure elements from the off-screen picture, identifies the common people and children in the figure elements, and records the number of adults and children as the number of adults and children getting off.

[0036] Further, the step S23 has the following specific steps:

[0037] S231. The central control unit acquires the recorded number of adults A1 getting on, the number of children B1 getting on, the number of adults A2 getting off, and the number of children B2 getting off;

[0038] S232. The central control unit compares the number of people getting on and off;

[0039] If A1=A2 and B1=B2, it is determined that there is no one in the vehicle, and step S233 is entered;

[0040] If A1>A2 and B1=B2, it is determined that there is only adults in the vehicle, and step S233 is entered;

[0041] If A1>A2 and B1>B2, it is determined that there are both adults and children in the vehicle, and step S233 is entered; if A1=A2 and B1>B2, it is determined that there are only children in the vehicle, and step S24 is entered;

[0042] S233. The vehicle normally responds to subsequent operations, and ends.

[0043] Further, the step S3 has the following specific steps:

[0044] S31. The BCM vehicle body controller enters an alarm state;

[0045] S32. The BCM vehicle body controller generates an alarm information when it is identified that all the doors are closed;

[0046] S33. The BCM vehicle body controller notifies the left and right turn signals to enter a double flashing state, and alarms through an electric horn;

[0047] S34. The BCM vehicle body controller sends the alarm information to the owner's mobile phone at a set time interval through the vehicle networking intelligent terminal T-BOX;

[0048] S35. The BCM vehicle body controller shields the locking function of the remote key;

[0049] S36. The BCM vehicle body controller judges whether the child has left the vehicle through the central control unit;

[0050] If yes, the BCM vehicle body controller exits the alarm state;

[0051] If no, the BCM vehicle body controller maintains the alarm state.

[0052] In a third aspect, the present application provides a vehicle comprising the detection system for avoiding children left in a vehicle according to the first aspect.

[0053] The present application has the following beneficial effects:

[0054] The detection system for avoiding children left in a vehicle, the method and the vehicle provided by the present application can realize detection and alarm of children left in a vehicle by means of existing devices of the vehicle without adding new components, thereby reducing the overall cost of the vehicle.

[0055] The present application collects effective state change images by the surround view camera unit in the effective time period of the boarding state and the alighting state, avoids waste of resources, determines the effective number of boarding and alighting personnel, classifies the personnel into adults and children, determines whether to activate the alarm state, and achieves optimal alarm effect by prompting the alighting personnel, surrounding personnel and the owner, thereby realizing effective control of avoiding children left in a vehicle.

[0056] In addition, the present application has reliable design principle, simple structure and very wide application prospect.

[0057] Therefore, compared with the prior art, the present application has outstanding substantial characteristics and significant progress, and the beneficial effects of the implementation are also obvious. BRIEF DESCRIPTION OF DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0059] Figure 1 The present application is a detection system for avoiding children left in a vehicle.

[0060] Figure 2 The present application is a flowchart of the detection method for avoiding children left in a vehicle. DETAILED DESCRIPTION

[0061] The detection system for avoiding children left in a vehicle and the method according to the present application can be applied to a vehicle.

[0062] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the protection scope of the present application.

[0063] Referring to Figure 1 As shown in the specific implementation of the detection system for avoiding children left in the car, comprising a BCM vehicle controller;

[0064] The BCM vehicle controller is connected with a central control unit, a door unit, a turn signal unit, a lock unit, an electric horn and a T-BOX of Internet of Vehicles intelligent terminal;

[0065] The central control unit is connected with a surround view camera unit;

[0066] The BCM vehicle controller wakes up the central control unit after recognizing the unlocking signal through the lock unit, and triggers the alarm state when there is only a child in the car after all the doors are closed, and controls the turn signal unit, the electric horn and the T-BOX of Internet of Vehicles intelligent terminal to alarm;

[0067] The central control unit collects the number of adults and children in the car through the surround view camera unit.

[0068] In this embodiment, the door unit includes a front left door, a rear left door, a front right door and a rear right door; the surround view camera unit includes a left camera and a right camera;

[0069] It should be noted that the surround view camera unit also includes a front camera and a rear camera, but these two cameras are not used in the present application;

[0070] The right camera collects the pictures of personnel getting on and off the front right door and the rear right door, and the left camera collects the pictures of personnel getting on and off the front left door and the rear left door;

[0071] The lock unit includes a remote key;

[0072] The turn signal unit includes a left turn signal and a right turn signal;

[0073] The turn signal unit receives the control signal of the BCM vehicle controller in the alarm state and enters the double flash state; the T-BOX of Internet of Vehicles intelligent terminal receives the control signal of the BCM vehicle controller in the alarm state and generates alarm information to send to the owner's mobile phone.

[0074] The following is an embodiment of the detection method for avoiding children left in the car provided by the present application. The method belongs to the same inventive concept as the detection system for avoiding children left in the car described above. Details not described in the embodiment of the detection method for avoiding children left in the car can be referred to the above embodiment of the detection system for avoiding children left in the car.

[0075] As Figure 2 shown, the method comprises the following steps:

[0076] S1. The BCM body controller wakes up the central control unit after receiving the unlock signal from the vehicle lock unit.

[0077] S2. The central control unit collects the boarding and alighting images of the personnel through the surround view camera unit, identifies the character elements, analyzes the number of adults and children boarding and alighting, records the change in the number of adults and children in the vehicle, and identifies whether it is a situation of only children in the vehicle.

[0078] S3. The BCM body controller alarms through the turn signal unit and the electric horn and generates an alarm information when the vehicle door lock receives a signal that all four doors of the vehicle are closed in the situation of only children in the vehicle, and sends the alarm information to the owner's mobile phone through the T-BOX intelligent terminal of the vehicle network.

[0079] In this embodiment, the specific steps of step S1 are as follows:

[0080] S11. The BCM body controller wakes up the central control unit after receiving the unlock signal from the remote key.

[0081] S12. The central control unit activates the left camera and the right camera of the surround view camera unit after being started.

[0082] The specific steps of step S2 are as follows:

[0083] S21. The central control unit receives the boarding image in the boarding state collected by the surround view camera unit, identifies the character elements, confirms the number of adults and children boarding according to the character elements, and records them.

[0084] S22. The central control unit receives the alighting image in the alighting state collected by the surround view camera unit, identifies the character elements, confirms the number of adults and children alighting according to the character elements, and records them.

[0085] S23. The central control unit compares the number of adults and children boarding and the number of adults and children alighting recorded, and identifies whether it is a situation of only children in the vehicle according to the comparison result.

[0086] If yes, go to step S24;

[0087] If no, the vehicle normally responds to the subsequent operation and ends.

[0088] S24. The central control unit notifies the BCM body controller of the situation of only children in the vehicle, and goes to step S3.

[0089] The specific steps of step S3 are as follows:

[0090] S31. The BCM body controller enters the alarm state.

[0091] S32. The BCM body controller generates an alarm information when it identifies that all the doors are closed;

[0092] S33. The BCM body controller informs the left and right turn signals to enter the double flash state, and alarms through the electric horn;

[0093] S34. The BCM body controller sends the alarm information to the owner's mobile phone through the T-BOX according to the set time interval;

[0094] S35. The BCM body controller shields the locking function of the remote key;

[0095] S36. The BCM body controller judges whether the child has left the vehicle through the central control unit;

[0096] If yes, the BCM body controller exits the alarm state;

[0097] If no, the BCM body controller maintains the alarm state.

[0098] In some embodiments, step S21 is specifically as follows:

[0099] S211. The left camera collects the pictures in the process of the left front door changing from open to closed and the left rear door changing from closed to open, and the right camera collects the pictures in the process of the right front door changing from open to closed and the right rear door changing from closed to open, as the boarding pictures, and transmits the boarding pictures to the central control unit;

[0100] S212. The central control unit extracts the human elements from the boarding pictures, identifies the adults and children in the human elements and their respective numbers, and records the number of adults and children boarding after the vehicle speed is greater than 0;

[0101] Step S22 is specifically as follows:

[0102] S221. The right camera collects the pictures in the process of the right front door changing from closed to open and then to closed and the right rear door changing from closed to open, and the left camera collects the pictures in the process of the left front door changing from closed to open and then to closed and the left rear door changing from closed to open, as the alighting pictures, and transmits the alighting pictures to the central control unit;

[0103] S222. The central control unit extracts the human elements from the alighting pictures, identifies the adults and children in the human elements, and records the number of adults and children alighting;

[0104] Step S23 is specifically as follows:

[0105] S231. The control unit acquires the recorded number of adults A1, the number of children B1, the number of adults A2 and the number of children B2;

[0106] S232. The control unit compares the number of people getting on and off the vehicle;

[0107] If A1=A2 and B1=B2, it is determined that there is no one in the vehicle, and step S233 is entered;

[0108] If A1>A2 and B1=B2, it is determined that there is only adults in the vehicle, and step S233 is entered;

[0109] If A1>A2 and B1>B2, it is determined that there are both adults and children in the vehicle, and step S233 is entered;

[0110] If A1=A2 and B1>B2, it is determined that there is only children in the vehicle, and step S24 is entered;

[0111] S233. The vehicle responds to the subsequent operation normally, and the process ends.

[0112] It should be understood that the sequence of the steps in the above embodiments does not mean the order of execution of the processes, and the order of execution of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0113] Although the present application has been described in detail through reference to preferred embodiments, it should be understood that the present application is not limited to the preferred embodiments. Any modification or replacement of the embodiments of the present application made by those skilled in the art without departing from the spirit and essence of the present application should be within the scope of the present application. Any modification or replacement made by those skilled in the art within the technical range disclosed by the present application should be within the scope of the present application.

Claims

1. A detection method for avoiding child left behind in a vehicle based on a detection system for avoiding child left behind in a vehicle, characterized by, The system comprises a BCM body controller; The BCM body controller is connected with a central control unit, a door unit, a turn signal unit, a lock unit, an electric horn and a T-BOX intelligent terminal of Internet of Vehicles; The central control unit is connected with a surround-view camera unit; The BCM body controller wakes up the central control unit after recognizing the unlocking signal through the lock unit, and triggers an alarm state when there is only a child in the vehicle after all the doors are closed, to control the turn signal unit, the electric horn and the T-BOX intelligent terminal of Internet of Vehicles to alarm; The central control unit collects the number of adults and children in the vehicle through the surround-view camera unit in the boarding and alighting pictures; The door unit comprises a front left door, a rear left door, a front right door and a rear right door; The surround-view camera unit comprises a left camera and a right camera; The right camera collects the boarding and alighting pictures of the personnel at the front right door and the rear right door, and the left camera collects the boarding and alighting pictures of the personnel at the front left door and the rear left door; The lock unit comprises a remote key; The turn signal unit comprises a left turn signal and a right turn signal; The turn signal unit receives the control signal of the BCM body controller in the alarm state, and enters a double-flash state; The T-BOX intelligent terminal of Internet of Vehicles receives the control signal of the BCM body controller in the alarm state, generates an alarm information and sends it to the owner's mobile phone; The method comprises the following steps: S1. The BCM body controller wakes up the central control unit after receiving the unlocking signal through the lock unit; S2. The central control unit collects the boarding and alighting pictures of the personnel through the surround-view camera unit, identifies the figure elements, analyzes the number of adults and children boarding and alighting, records the changes of the number of adults and children in the vehicle, and identifies whether it is a state of only children in the vehicle; S3. The BCM body controller alarms through the turn signal unit and the electric horn when there is only a child in the vehicle after the vehicle lock receives the signal that all four doors of the vehicle are closed, and generates an alarm information and sends it to the owner's mobile phone through the T-BOX intelligent terminal of Internet of Vehicles.

2. The detection method of claim 1, wherein the step of detecting the child left in the vehicle is performed by the at least one of the plurality of sensors. Step S1 specifically comprises the following steps: S11. The BCM body controller wakes up the central control unit after receiving the unlocking signal of the remote key; S12. The central control unit activates the left camera and the right camera of the surround-view camera unit after starting.

3. The detection method of claim 2, wherein the step of detecting the presence of the child in the vehicle is performed by a sensor. Step S2 specifically comprises the following steps: S21. The central control unit receives the boarding picture in the boarding state collected by the surround-view camera unit, identifies the figure elements, confirms the number of adults and children boarding according to the figure elements and records them; S22. The central control unit receives the alighting picture in the alighting state collected by the surround-view camera unit, identifies the figure elements, confirms the number of adults and children alighting according to the figure elements and records them; S23. The central control unit compares the number of adults and children boarding and the number of adults and children alighting recorded, and identifies whether it is a state of only children in the vehicle according to the comparison result; If yes, go to step S24; If no, the vehicle normally responds to the subsequent operation and ends; S24. The central control unit informs the BCM body controller of the state of only children in the vehicle, and goes to step S3.

4. The detection method of claim 3, wherein the step of detecting the presence of the child in the vehicle is performed by a sensor. Step S21 specifically comprises the following steps: S211. The left camera captures the left front door from open to closed state changes in the process of the screen and the left rear door from closed to open state changes in the process of the screen and the right camera captures the right front door from open to closed state changes in the process of the screen and the right rear door from closed to open state changes in the process of the screen, as the car screen, and the car screen is transmitted to the central control unit; S212. The central control unit extracts character elements from the boarding screen, identifies adults, children, and their respective numbers in the character elements, and records the number of adults and children on board after the speed is greater than 0; The specific steps of step S22 are as follows: S221. The right camera captures the image of the right front door changing from closed to open and then to closed, as well as the image of the right rear door changing from closed to open. The left camera captures the image of the left front door changing from closed to open and then to closed, as well as the image of the left rear door changing from closed to open and then to closed, as the total image of the state change process, and transmits the image of the state change process to the central control unit; S222. The central control unit extracts human elements from the getting-off screen, identifies normal people and children among the human elements, and records them as the number of adults and children getting off the vehicle.

5. The method of claim 3, wherein the step of detecting the child left in the vehicle is performed by a sensor. The specific steps of step S23 are as follows: S231. The central control unit obtains the recorded number of adults A1, the number of children B1, the number of adults A2, and the number of children B2 getting off the bus; S232. The central control unit compares the number of people getting on and off the bus; If A1=A2 and B1=B2, it is determined that there is no one in the car, and the process goes to step S233; If A1>A2 and B1=B2, it is determined that there is only an adult in the car, and the process goes to step S233; If A1>A2 and B1>B2, it is determined that there are both adults and children in the car, and the process goes to step S233; If A1=A2, B1>B2, it is determined that there is only a child in the car, and the process goes to step S24; S233. The vehicle responds normally to subsequent operations and ends.

6. The detection method of claim 1, wherein the step of detecting the presence of the child in the vehicle is performed by a sensor. The specific steps of step S3 are as follows: S31.BCM body controller enters alarm state; S32. When the BCM detects that all doors are closed, it generates an alarm. S33. The BCM notifies the left and right turn signals to enter the double flash state and uses the electric horn to warn the user. S34. The BCM sends alarm information to the vehicle owner's mobile phone at set intervals via the connected vehicle intelligent terminal T-BOX. S35. The BCM body controller blocks the locking function of the remote control key; S36. The BCM determines whether the child has left the vehicle through the central control unit. If so, the BCM body controller exits the alarm state; If not, the BCM body controller maintains the alarm state.

7. A vehicle characterized by comprising: The detection method for preventing children from being left behind in a vehicle as described in any one of claims 1 to 6 is applied.

Images