CN110341623B - Vehicle door anti-collision early warning system and early warning method - Google Patents
Vehicle door anti-collision early warning system and early warning method Download PDFInfo
- Publication number
- CN110341623B CN110341623B CN201910673880.1A CN201910673880A CN110341623B CN 110341623 B CN110341623 B CN 110341623B CN 201910673880 A CN201910673880 A CN 201910673880A CN 110341623 B CN110341623 B CN 110341623B
- Authority
- CN
- China
- Prior art keywords
- vehicle door
- early warning
- object information
- processing unit
- central processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/31—Detection related to theft or to other events relevant to anti-theft systems of human presence inside or outside the vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a vehicle door anti-collision early warning system and a vehicle door anti-collision early warning method. According to the invention, the infrared sensor is combined with the low-cost continuous millimeter wave Doppler radar to detect the living object approaching from the rear in real time, so that the object approaching can be accurately detected, the influence of the information of the living object collected by the radar and the information of the static object collected by the infrared sensor on the detection result is avoided, the accuracy of object detection is improved, and the accuracy and effectiveness of vehicle door anti-collision early warning are improved. In addition, door collision avoidance system still is provided with the image acquisition device who is used for gathering the object influence, can avoid maliciously bumping porcelain scheduling problem according to gathering the image, has improved the security of opening the door.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to an automobile door anti-collision early warning system and an early warning method.
Background
With the dramatic increase of the automobile keeping quantity, the safety of the automobile is more and more valued by the consumers. The concept of automobile safety service is gradually derived by various automobile manufacturers, and when the automobile is opened in automobile safety, the accident that the automobile door collides with other automobiles such as bicycles and motorcycles close to the rear part is particularly prominent, so that the number of the disabled people accounts for 11% of the total disabled people in the traffic accident every year. In addition, a part of lawless persons use the bad habit that drivers and passengers do not pay attention to observing the road conditions behind to touch the porcelain, so that illegal benefits are obtained, and unnecessary economic loss is caused to vehicle owners.
At present, in order to avoid potential safety hazards existing when the vehicle door is opened, a visual camera capturing technology is generally adopted, the core part of the visual camera capturing technology is concentrated on an image processing algorithm, hardware is easy to realize, and the visual camera capturing technology is convenient to integrate on a vehicle. However, the visual camera capturing technology is greatly influenced by light, rain, fog, snow, frost and other weather environments, and the recognition success rate is not high; especially, under the condition of night and other poor light, the risk of complete failure exists, the problem that the door collision can not be effectively prevented.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a vehicle door anti-collision early warning system and an early warning method, so as to solve the problems that the existing anti-collision warning system is easily influenced by severe environment and cannot effectively prevent vehicle door collision.
The technical scheme adopted by the invention is as follows:
a vehicle door pre-warning collision avoidance system, comprising: the system comprises a radar module, an infrared inductor, a vehicle door locking device and a central processing unit, wherein the radar module, the infrared inductor and the vehicle door locking device are all connected with the central processing unit;
the radar module is used for detecting moving object information in a preset detection area and sending the moving object information to the central processing unit;
the infrared sensor is used for detecting object information of a preset detection area and sending the object information to the central processing unit;
the central processing unit is used for determining whether an effective object exists in a preset detection area according to the moving object information and the object information, and sending a locking signal to the vehicle door locking device when the effective object exists;
and the vehicle door locking device is used for controlling the locking of the vehicle door according to the locking signal.
The vehicle door anti-collision early warning system further comprises a power module, wherein the power module is connected with the central processing unit to supply power to the central processing unit, and the power module at least comprises one of a vehicle power supply system and a rechargeable battery.
The vehicle door anti-collision early warning system is characterized in that the radar module and the infrared sensor are detachably connected to a rearview mirror of a vehicle, and the preset detection area of the radar module is the same as the preset detection area of the infrared sensor.
The vehicle door anti-collision early warning system also comprises an early warning device, and the early warning device is connected with the central processing unit;
the early warning device is used for receiving an early warning signal sent by the central processing unit and generating acousto-optic early warning according to the early warning signal.
The vehicle door anti-collision early warning system also comprises external equipment, and the external equipment is connected with the central processing unit;
and the external equipment is used for sending a closing instruction to the central processing unit so that the central processing unit closes the infrared inductor and the radar module according to the closing instruction.
The vehicle door anti-collision early warning system also comprises an image acquisition device, and the image acquisition device is connected with the central processing unit;
the image acquisition device is used for acquiring a video image of a preset detection area and sending the video image to the central processing unit so as to determine whether the vehicle door collides with an object according to the video image.
A vehicle door anti-collision early warning method is applied to the vehicle door anti-collision early warning system, and comprises the following steps:
detecting moving object information of a preset detection region through a radar module, and detecting object information of the preset detection region through an infrared sensor;
judging whether an effective object exists in a preset detection area or not according to the moving object information and the object information;
when a valid object is present, a locking signal is sent to the door locking device to lock the door by the door locking device.
The vehicle door anti-collision early warning method further comprises the following steps:
when no valid object exists, a door lock unlocking signal is sent to the door locking device to unlock the door by the door locking device.
The vehicle door anti-collision early warning method comprises the following steps of judging whether effective objects exist in a preset detection area according to the moving object information and the object information:
monitoring the first times of detecting the moving object information and the second times of detecting the object information within a preset time;
calculating the total times of the first times and the second times, and comparing the total times with a preset time threshold;
and when the total times is greater than or equal to the preset times threshold value, judging that the effective object exists in the preset detection area.
The vehicle door anti-collision early warning method comprises the following steps:
and when the preset time is over, clearing the first time and the second time.
Has the advantages that: the invention provides a vehicle door anti-collision early warning system and an early warning method. According to the invention, the infrared sensor is combined with the low-cost continuous millimeter wave Doppler radar to detect the living object approaching from the rear in real time, so that the object approaching can be accurately detected, the influence of the information of the living object collected by the radar and the information of the static object collected by the infrared sensor on the detection result is avoided, the accuracy of object detection is improved, and the accuracy and effectiveness of vehicle door anti-collision early warning are improved. Meanwhile, the moving object information in the preset detection area is acquired by the continuous millimeter wave Doppler radar, and the continuous millimeter wave Doppler radar is not influenced by high severe environment (such as high temperature or rain, snow and the like), so that the early warning system can accurately acquire effective object information in the severe environment, and the safety of the early warning system is improved. In addition, door collision avoidance system still is provided with the image acquisition device who is used for gathering the object influence, can avoid maliciously bumping porcelain scheduling problem according to gathering the image, has improved the security of opening the door.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle door anti-collision warning system provided in an embodiment of the present invention;
fig. 2 is a schematic view of an application scenario of the vehicle door anti-collision early warning system according to the embodiment of the present invention;
fig. 3 is a schematic view of another application scenario of the vehicle door anti-collision warning system according to the embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of a rearview mirror for an automobile according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an embodiment of a radar module in the vehicle door anti-collision warning system according to the embodiment of the present invention;
FIG. 6 is a flowchart of a vehicle door anti-collision warning method according to an embodiment of the present invention;
fig. 7 is a schematic flow chart of a vehicle door anti-collision warning method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "vertical," "horizontal," "left," "right," "up," "down," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The vehicle door anti-collision early warning method and the anti-collision early warning system provided by the embodiment can be applied to any type of vehicles or similar mobile vehicles and are used for avoiding collision between the vehicle door of the vehicle and a living moving object from the rear when the vehicle door is opened.
Based on the idea of infrared detection and continuous millimeter wave doppler radar acquisition disclosed by the embodiment of the invention, a technical scheme can be easily and simply converted, adjusted or combined by a person skilled in the art, and then the technical scheme is applied to various automobiles.
As shown in fig. 1 to 4, the vehicle door collision avoidance early warning system includes a central processing unit 110, an infrared sensor 122, a radar module 121, and a vehicle door locking device 150; the infrared sensor 122, the radar module 121 and the door locking device 150 are all connected to the central processing unit 110, and communicate with the central processing unit 110. The infrared sensor 122 is configured to detect object information in a preset detection region and send the detected object information to the central processing unit 110, and the radar module 121 is configured to detect moving object information in the preset detection region and send the detected moving object information to the central processing unit 110. The central processor 110 receives the object information sent by the infrared sensor 122 and the moving object information sent by the radar module 121, determines whether a valid object exists in the preset detection region T according to the received object information and the moving object information, and sends a locking signal to the door locking device 150 when a valid object exists. The door locking device 150 receives the door lock signal and locks the door according to the door lock signal to prevent the door from being opened. This embodiment adopts infrared sensor to combine low-cost continuous millimeter wave Doppler radar, carries out real-time detection to the animate object that the rear is close, can accurately detect effectively and be close the object, avoids the influence of the motionless object information that radar gathered and the static object information that infrared inductor gathered to testing result, has improved the accuracy that the object detected to the accuracy and the validity of door anticollision early warning have been improved. In the present embodiment, the detection of the living object approaching from the rear is based on the moving speed and the perceived distance measurement, that is, the object information of the living object moving at a certain speed in the preset detection area is detected, and the locking information is generated according to the detected object information.
Further, in an implementation manner of this embodiment, the infrared sensor 122 and the radar module 121 are arranged in a module, and a preset detection area corresponding to the infrared sensor 122 is consistent with a preset detection area corresponding to the radar module, so that the infrared sensor 122 and the radar module 121 collect object information in the same area, and thus, the accuracy of object detection can be improved. In the present embodiment, a pair of rear view mirrors 120 are provided on both sides of the automobile. The rear view mirror 120 extends outward a certain distance and forms an angle for a driver to observe the road condition behind both sides of the vehicle, so that the infrared sensor 122 and the radar module 121 are disposed on one side of the rear view mirror. The preset detection area T is a sector area, and the rearview mirrors provided with the infrared sensor 122 and the radar module 121 are vertexes of the sector area. In addition, the two rear-view mirrors 120 on the automobile body 100 may be both provided with the infrared sensor 122 and the radar module 121, so that the two doors can be warned simultaneously. In practical applications, the detection module formed by the infrared sensor and the radar module can be disposed on the left and right doors and other places related to the doors.
Further, in an implementation manner of this embodiment, the radar module 121 is preferably a continuous millimeter wave doppler radar, and since the continuous millimeter wave doppler radar is not affected by a high severe environment (e.g., high temperature, rain, snow, etc.), the early warning system may accurately acquire effective object information in the severe environment, so that the safety of the early warning system is improved; meanwhile, the continuous millimeter wave Doppler radar can detect the object information of a moving object in a preset detection area, so that the influence of a static object on the early warning system is avoided, and the effectiveness of the object information is improved. The continuous millimeter wave Doppler radar has low cost, and the cost of the early warning system can be reduced.
In this embodiment, as shown in fig. 5, a dielectric resonator of the doppler radar generates a millimeter wave signal, a part of the millimeter wave signal is radiated outwards through a transmitting antenna 21, and the other part of the millimeter wave signal is injected into a mixer 22 as a local oscillation signal, where the frequency of the local oscillation signal is denoted as Ftx. When a millimeter wave signal radiated from the transmitting antenna 21 encounters an obstacle, a reflected signal having a frequency denoted Frx is generated, which is received by the receiving antenna 23 and fed into the mixer 22. The mixer 22 generates an intermediate frequency signal Sif at the intermediate frequency end, the frequency of which is denoted Fif, where Fif | Frx-Ftx |. The intermediate frequency signal is used for determining the motion information of the obstacle, when Fif is 0, the obstacle is static, and the detected motion information is static; when Fif ≠ 0, the obstacle is in a motion state, and the detected motion information is motion. In addition, due to the doppler effect, when Fif ≠ 0, the frequency of Fif may be between 10Hz and 200Hz, and at this time, after the intermediate frequency signal is amplified and shaped by the amplifier 24 and the threshold detector 25, a pulse (TTL level) signal is output to the central processing unit 110, so that the central processing unit 110 may acquire the object motion information detected by the radar module.
Further, in an implementation manner of this embodiment, the infrared sensor 122 employs a human body infrared detector with a fresnel filter lens, and the human body infrared detector operates by detecting infrared rays around 10um emitted by a human body. Infrared rays with the wavelength of about 10um emitted by a human body are enhanced by the Fresnel lens and then focused on the infrared sensing probe. When the infrared sensing probe receives the change of the infrared radiation temperature of the human body, the charge balance is lost, and the charge is released outwards to generate a trigger signal. This embodiment passes through infrared sensor can detect the object information that has the life object in the preset detection area, can avoid the influence of inanimate object to early warning system like this, has improved the accuracy of early warning system.
Further, in one implementation manner of the present embodiment, the number of the door locking devices 150 is the same as the number of doors provided on the automobile body 100, and the door locking devices 150 are provided at each door. The door locking device 150 may be installed at an opening latch for opening the door, for locking the door according to a locking signal of the cpu to prevent a passenger from pushing the door. In this embodiment, a communication connection may be established between the central processing unit 110 and the door locking device 150, the central processing unit 110 may send a locking signal to the door locking device 150, and the door locking device 150 may send feedback information carrying a locking result to the central processing unit 110. The central processing unit 110 and the door locking device 150 may be connected through bluetooth or WiFi communication.
Further, in an implementation manner of this embodiment, the early warning system may further include a power module 130, where the power module 130 is connected to the central processing unit 110 to supply power to the central processing unit 110. The power module 130 may include one or more of a power supply system inside the automobile and a rechargeable battery of an external device. In this embodiment, the battery module includes power supply system and rechargeable battery inside the car, rechargeable battery with power supply system inside the car is connected, can pass through power supply system inside the car does rechargeable battery charges, and when the car starts the operation like this, inside power supply system of car does rechargeable battery charges until rechargeable battery reaches the electric quantity that fully charges. That is, the power supply system inside the vehicle is charged until the rechargeable battery is fully charged. If the special condition that the rechargeable battery can not supply power to the vehicle door anti-collision early warning system occurs, the vehicle door anti-collision early warning system can also be powered by the vehicle interior power supply system. Of course, in practical applications, the rechargeable battery may be a solar battery.
Further, in an implementation manner of this embodiment, the early warning system may further include an alarm device 140, where the alarm device 140 is connected to the central processing unit 110, and generates an alarm prompt according to an alarm signal sent by the central processing unit 110. In this embodiment, the alarm device 140 is preferably an audible and visual alarm, which generates an audible and visual alarm according to the alarm signal when receiving the alarm signal sent by the central processing unit, so as to remind the user that there is an effective object behind the vehicle door. Therefore, under the condition of locking the vehicle door, the user can be reminded, and the safety of early warning is further improved.
Further, in an implementation manner of this embodiment, in order to improve comprehensiveness of the early warning, the early warning system may further include an external device, the external device is connected to the central processing unit 110, the external device sends a closing instruction to the central processing unit 110, and the central processing unit 110 closes the infrared sensor 122 and the radar module 121 according to the closing instruction, so as to prevent the power consumption waste caused by excessive power consumption when the vehicle stays in a garage or other places for a long time. In this embodiment, the external device may be an intelligent terminal device suitable for interacting with a user, such as a smart phone, a personal computer, a tablet computer, or a wearable smart device. In addition, the external device can be used for controlling the swinging angle of the rearview mirror, for example, when the vehicle is parked, the vehicle owner can close the rearview mirror through the external device. In this embodiment, the external device may be loaded with an application program for controlling the warning system, the application program enables a user to conveniently interact with the central processing unit 110 through the external device, and the application program may acquire the state of the door locking device 150, the battery state of the rechargeable battery, the operating states of the radar module 121 and the infrared sensor 122, the angle of the rearview mirror, and the like; or receiving the early warning information sent by the central processing unit 110 and prompting the early warning information to the user; a control instruction may also be sent to the central processing unit 110, so that the central processing unit 110 adjusts the preset detection area, the configuration parameters of the radar module 121 and the infrared sensor 122, the state of the door locking device, and the like according to the control instruction.
Further, in an implementation manner of this embodiment, the early warning system may further include an image capturing device 160, where the image capturing device 160 may also be disposed in the rearview mirror, and is configured to capture video data in a preset detection area, and send the video data to the central processing unit 110, so as to store the video data through the central processing unit 110. When sending door collision accident, can acquire through central processing unit like this the video data that door collision accident corresponds, through video data can judge whether the door contacts with the object, can avoid lawless persons to implement to bump porcelain on the one hand, has avoided car owner's unnecessary economic loss, and on the other hand can detect early warning system and detect the accuracy, confirms object and door contact and when early warning system does not lock the door according to video data, can judge that early warning system sends the trouble or detects failure.
Based on the vehicle door anti-collision early warning system, the invention also provides a vehicle door anti-collision early warning method, as shown in fig. 6 and 7, the early warning method comprises the following steps:
and S10, detecting the moving object information of the preset detection area through the radar module, and detecting the object information of the preset detection area through the infrared sensor.
Specifically, the radar module is a continuous millimeter wave doppler radar, and the object information of the moving object in the detection area is preset by the moving object information. The detection of the moving object information may be: the continuous millimeter wave Doppler radar radiates electromagnetic waves Ftx to a preset detection area through the directional array antenna and receives reflected electromagnetic waves Frx through the receiving antenna. In the Doppler effect, when a static object exists in a preset detection area, the reflected electromagnetic wave Frx and the transmitted electromagnetic wave Ftx are the same, the detector does not output a trigger signal, when the moving object approaches, a difference value Fif exists between the reflected electromagnetic wave Frx and the transmitted electromagnetic wave Ftx, and at the moment, the radar detector outputs an effective trigger signal to the central processing unit so that the central processing unit can acquire the information of the moving object. In addition, the infrared sensor and the doppler radar work synchronously, object information of the live object in the preset detection area is detected through the infrared sensor, and the detection process of the object information of the live object can be as follows: whether there is an object that has infrared emission to confirm in predetermineeing the detection zone through infrared sensor detection, this is because the motor vehicle that approaches at a high speed can outwards radiate 10 um's infrared ray, and the condition of fallen leaves, raindrop and non-man driving is then not, consequently improves through infrared sensor assistance and surveys effective success rate, and when infrared sensor detected that there is the object of radiating infrared ray to exist in the detection zone, output triggering signal gives central processing unit to make central processing unit receive the object information of having the life object.
And S20, judging whether a valid object exists in a preset detection area according to the moving object information and the object information.
Specifically, the effective object refers to a living object in a moving state, wherein the effective object is determined according to object information (moving object information) of the moving object detected by the radar module and object information (object information) of the living object detected by the infrared sensor, so that the object information of the moving object and the object information of the living object are combined, the accuracy of judging the moving object can be improved, and the accuracy and the effectiveness of early warning are improved. In this embodiment, the object information and the moving object information are separately sent to the central processing unit, and the central processing unit may determine whether there is an effective object in the preset detection region according to a combination of the received moving object information and the received object information.
For example, the determining whether there is a valid object in a preset detection range according to the moving object information and the object information specifically includes:
s21, monitoring the first times of detecting the moving object information and the second times of detecting the object information within the preset time;
s22, calculating the total times of the first times and the second times, and comparing the total times with a preset time threshold;
s23, when the total times is larger than or equal to the preset times threshold value, determining that a valid object exists in the preset detection range;
and S24, when the total times is smaller than the preset times threshold value, judging that no effective object exists in the preset detection range.
The preset time is preset, for example, 100ms, depending on the place. Namely, the central processing unit obtains the first times of receiving the moving object information and the second times of receiving the object information within 100ms, and calculates the total times of the first times and the second times. For example, if the first number is 2 and the second number is 3, the total number is 5. In this embodiment, the central processor may determine the number of times of receiving the object information by detecting the number of level transitions of the infrared sensor, that is, when the central processor detects a level transition (for example, a transition from a high level to a low level) of the infrared sensor, the infrared transition record is incremented by one, that is, the number of times of receiving the object information is incremented by one. In addition, whether the level of the radar module jumps or not is recorded while the infrared jump frequency is recorded, when the level of the radar module jumps, the microwave jump record is increased by one, namely the frequency of receiving the information of the moving object is increased by one, and the steps are repeated until the preset time is over, the infrared jump record frequency is obtained to obtain a first time, and the microwave jump record frequency is obtained to obtain a second time.
Further, after the first number and the second number are obtained, the total number is calculated according to the first number and the second number, and the calculated total number is compared with a preset number threshold value to judge whether the early warning information needs to be generated or not. In this embodiment, the preset number threshold is preset, for example, 3 times. In addition, after the total times are compared with a preset time threshold, the infrared jump times and the microwave jump times are simultaneously cleared to start the detection of the next preset time.
And S30, when the effective object exists, sending a locking signal to the door locking device to lock the door by the door locking device.
Specifically, when a valid object is present, the cpu sends a lock signal to the door lock device to lock the door by the door lock device. Certainly, in practical application, in order to bring convenience to users, when an effective object exists, the central processing unit monitors the opening instruction of the vehicle door in real time, and when the opening instruction of the vehicle door is received, the vehicle door locking device is controlled to lock the vehicle door through the CAN interface. In addition, when detecting that there is an effective object, the warning information CAN be directly sent to the user to prompt that there is a moving object behind the user to approach, please note to open the vehicle door, and monitor the command that the vehicle door is opened while sending the warning information, and when receiving the command that the vehicle door is opened, the vehicle door locking device is controlled through the CAN interface to lock the vehicle door, and the warning is performed again.
Further, in one implementation manner of the embodiment, the early warning method further includes:
when no valid object exists, a door lock unlocking signal is sent to the door locking device to unlock the door by the door locking device.
Specifically, when no effective object exists, the state of the vehicle door locking device can be detected, and if the vehicle door locking device is in a locking state, the vehicle door locking device sends a door lock unlocking signal to unlock the vehicle door through the vehicle door locking device, so that the situation that a user cannot open the vehicle door can be avoided, and convenience is brought to the user. Of course, when the door lock device is not in the locked state, the unlock information may not be transmitted to the door lock device, or may be discarded by the door lock device. In this embodiment, it is preferable that the unlocking information is not sent to the door locking device, so that communication between the central processing unit and the door locking device can be reduced, and energy consumption of early warning is reduced.
It should be understood that the technical solutions and concepts of the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.
Claims (9)
1. A vehicle door anti-collision early warning system, comprising: the system comprises a radar module, an infrared inductor, a vehicle door locking device and a central processing unit, wherein the radar module, the infrared inductor and the vehicle door locking device are all connected with the central processing unit;
the radar module is used for detecting moving object information in a preset detection area and sending the moving object information to the central processing unit;
the infrared sensor is used for detecting object information of a preset detection area and sending the object information to the central processing unit;
the central processing unit is used for determining whether an effective object exists in a preset detection area according to the moving object information and the object information, and sending a locking signal to the vehicle door locking device when the effective object exists;
the vehicle door locking device is used for controlling the locking of the vehicle door according to the locking signal;
the specific steps of determining whether the effective object exists in the preset detection area according to the moving object information and the object information by the central processor are as follows:
the central processing unit monitors a first time of receiving the moving object information and a second time of receiving the object information in a preset time, and calculates the total times of the first time and the second time;
and when the total times is greater than or equal to a preset time threshold value, judging that the effective object exists in the preset detection area.
2. The vehicle door anti-collision early warning system according to claim 1, further comprising a power module connected with the central processing unit to supply power to the central processing unit, wherein the power module at least comprises one of a vehicle power supply system and a rechargeable battery.
3. The vehicle door anti-collision pre-warning system according to claim 1, wherein the radar module and the infrared sensor are detachably connected to a rearview mirror of a vehicle, and the preset detection area of the radar module is the same as that of the infrared sensor.
4. The vehicle door anti-collision early warning system according to claim 1, further comprising an early warning device, wherein the early warning device is connected with the central processing unit;
the early warning device is used for receiving an early warning signal sent by the central processing unit and generating acousto-optic early warning according to the early warning signal.
5. The vehicle door anti-collision early warning system according to claim 1, further comprising an external device, wherein the external device is connected with the central processing unit;
and the external equipment is used for sending a closing instruction to the central processing unit so that the central processing unit closes the infrared inductor and the radar module according to the closing instruction.
6. The vehicle door anti-collision early warning system according to claim 1, further comprising an image acquisition device, wherein the image acquisition device is connected with the central processing unit;
the image acquisition device is used for acquiring a video image of a preset detection area and sending the video image to the central processing unit so as to determine whether the vehicle door collides with an object according to the video image.
7. A vehicle door pre-warning method applied to the vehicle door pre-warning system according to any one of claims 1 to 6, the method comprising:
detecting moving object information of a preset detection region through a radar module, and detecting object information of the preset detection region through an infrared sensor;
judging whether an effective object exists in a preset detection area or not according to the moving object information and the object information;
when a valid object exists, sending a locking signal to a vehicle door locking device to lock a vehicle door through the vehicle door locking device;
the step of judging whether an effective object exists in a preset detection area according to the moving object information and the object information specifically comprises the following steps:
monitoring the first times of detecting the moving object information and the second times of detecting the object information within a preset time;
calculating the total times of the first times and the second times, and comparing the total times with a preset time threshold;
and when the total times is greater than or equal to the preset times threshold value, judging that the effective object exists in the preset detection area.
8. A vehicle door pre-warning method as claimed in claim 7, further comprising:
when no valid object exists, a door lock unlocking signal is sent to the door locking device to unlock the door by the door locking device.
9. A vehicle door pre-warning method as claimed in claim 7, further comprising:
and when the preset time is over, clearing the first time and the second time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910673880.1A CN110341623B (en) | 2019-07-23 | 2019-07-23 | Vehicle door anti-collision early warning system and early warning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910673880.1A CN110341623B (en) | 2019-07-23 | 2019-07-23 | Vehicle door anti-collision early warning system and early warning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110341623A CN110341623A (en) | 2019-10-18 |
| CN110341623B true CN110341623B (en) | 2020-04-07 |
Family
ID=68178856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910673880.1A Active CN110341623B (en) | 2019-07-23 | 2019-07-23 | Vehicle door anti-collision early warning system and early warning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110341623B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918377B (en) * | 2019-12-06 | 2022-11-01 | 北京新能源汽车股份有限公司 | Control method, controller, system and vehicle for parking and door opening early warning |
| CN111267730A (en) * | 2020-03-11 | 2020-06-12 | 上海科世达-华阳汽车电器有限公司 | Automatic vehicle door anti-collision method, automatic vehicle door anti-collision system and vehicle |
| CN111376862B (en) * | 2020-03-27 | 2021-05-28 | 海南耐威科技系统技术研究院有限公司 | Vehicle door anti-collision early warning system and early warning method |
| CN111746390A (en) * | 2020-07-10 | 2020-10-09 | 苏州科技大学 | Intelligent alarm system for automobile collision avoidance |
| CN111929686A (en) * | 2020-08-05 | 2020-11-13 | 深圳技术大学 | Anti-collision control early warning method and device, micro control chip and storage medium |
| CN112265500A (en) * | 2020-08-18 | 2021-01-26 | 中国计量大学 | Automobile anti-collision anti-theft alarm system and method |
| CN113665525A (en) * | 2021-08-23 | 2021-11-19 | 爱驰汽车有限公司 | Vehicle safety protection device, system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011076340A1 (en) * | 2011-05-24 | 2012-11-29 | Robert Bosch Gmbh | Method and device for warning road users |
| CN204077568U (en) * | 2014-08-15 | 2015-01-07 | 许乐群 | Opening vehicle door anti-collision hits caution system |
| CN206383881U (en) * | 2017-01-17 | 2017-08-08 | 河南悟装软件科技有限公司 | A kind of safe enabling anticollision device, collision-prevention device |
| CN206983854U (en) * | 2017-02-24 | 2018-02-09 | 武汉科技大学 | A kind of pillar A blind prior-warning device based on automobile rearview mirror |
| CN109484337A (en) * | 2018-11-27 | 2019-03-19 | 深圳技术大学（筹） | Car door anti-collision method for early warning and its anti-collision early warning system based on infrared acquisition and Image Acquisition |
| CN109835249A (en) * | 2018-12-19 | 2019-06-04 | 山东师范大学 | A kind of opening door of vehicle auxiliary monitoring system and method based on ultrasonic radar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109910745A (en) * | 2019-04-12 | 2019-06-21 | 河南城建学院 | Based on automotive safety intelligent anticollision early warning system and method under Doppler radar technique |
-
2019
- 2019-07-23 CN CN201910673880.1A patent/CN110341623B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011076340A1 (en) * | 2011-05-24 | 2012-11-29 | Robert Bosch Gmbh | Method and device for warning road users |
| CN204077568U (en) * | 2014-08-15 | 2015-01-07 | 许乐群 | Opening vehicle door anti-collision hits caution system |
| CN206383881U (en) * | 2017-01-17 | 2017-08-08 | 河南悟装软件科技有限公司 | A kind of safe enabling anticollision device, collision-prevention device |
| CN206983854U (en) * | 2017-02-24 | 2018-02-09 | 武汉科技大学 | A kind of pillar A blind prior-warning device based on automobile rearview mirror |
| CN109484337A (en) * | 2018-11-27 | 2019-03-19 | 深圳技术大学（筹） | Car door anti-collision method for early warning and its anti-collision early warning system based on infrared acquisition and Image Acquisition |
| CN109835249A (en) * | 2018-12-19 | 2019-06-04 | 山东师范大学 | A kind of opening door of vehicle auxiliary monitoring system and method based on ultrasonic radar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110341623A (en) | 2019-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110341623B (en) | Vehicle door anti-collision early warning system and early warning method | |
| US10753138B2 (en) | Vehicular collision avoidance system | |
| RU2704772C2 (en) | Reduced load in off state of vehicle by means of external sensor | |
| CN104590155B (en) | Prevent the device bumped against during car door opening with object | |
| US8442755B2 (en) | Systems and methods for preventing motor vehicle side doors from coming into contact with obstacles | |
| US10328896B2 (en) | Vehicle theft avoidance systems and associated methods | |
| CN112627673B (en) | Scissor door control system and method | |
| CN114439346B (en) | Vehicle trunk control method and system | |
| CN112537254A (en) | Vehicle and vehicle early warning method and device | |
| CN113561892B (en) | Intelligent anti-collision system and method for opening door of automobile | |
| CN113022434A (en) | Automatic door opening anti-collision device and method for vehicle | |
| KR20220116434A (en) | In-vehicle radar-based monitoring | |
| CN111929686A (en) | Anti-collision control early warning method and device, micro control chip and storage medium | |
| CN207106415U (en) | A kind of blind monitoring system based on net connection automobile | |
| CN108909621B (en) | Protection method of millimeter wave detection vehicle door outer anti-collision safety system | |
| JP2016141312A (en) | Control device and control method | |
| CN116065918A (en) | Vehicle door control method, control system and vehicle | |
| JP2005161996A (en) | Vehicle periphery monitoring system | |
| JP2016142076A (en) | Control device and control method | |
| JP2016142077A (en) | Control device and control method | |
| JP4511325B2 (en) | Vehicle security system | |
| US20240157910A1 (en) | Method for monitoring a transportation vehicle and transportation vehicle | |
| Kedarkar et al. | Prevention device for blind spot accident detection and protection | |
| CN109799508A (en) | Vehicle blind zone monitoring device, method and system | |
| JP6044147B2 (en) | Smart entry system for vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |