CN111376862B - 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
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- CN111376862B CN111376862B CN202010226603.9A CN202010226603A CN111376862B CN 111376862 B CN111376862 B CN 111376862B CN 202010226603 A CN202010226603 A CN 202010226603A CN 111376862 B CN111376862 B CN 111376862B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- 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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
- E05B77/04—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/36—Locks for passenger or like doors
Abstract
The invention belongs to the technical field of automobile safety protection, and provides a vehicle door anti-collision early warning system and an early warning method, wherein the system comprises: the system comprises a processing module, an acquisition module, an alarm module, a control module and a vehicle door locking module; the method comprises the following steps: s01: periodically acquiring motion information of different moving objects in the detection area, and storing the motion information of different moving objects at different moments; s02: predicting whether the moving object appears in an effective area for opening the vehicle door at the next moment according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment; s03: and controlling the alarm module and the vehicle door locking module according to the prediction information at the next moment until the next control signal arrives. According to the vehicle door anti-collision early warning system and the early warning method, the accuracy of detecting a moving object near the vehicle door is improved, and the safety of the vehicle door when the vehicle door is opened is ensured to the greatest extent.
Description
Technical Field
The invention relates to the technical field of automobile safety protection, in particular to an automobile door anti-collision early warning system and an early warning method.
Background
With the development of society and the improvement of living standard of people, almost every family possesses cars, the rapid increase of the number of cars also enables the number of rear-end collisions and scraping accidents of cars to be rapidly increased, especially when drivers and passengers get off the car in the car, the situation of pedestrians or vehicles outside the car is not observed, the vehicles of both parties are scraped or the passengers outside the car are injured, and unnecessary economic loss is caused.
In the prior art, whether a moving object exists near a vehicle door or not is detected, whether the vehicle door is safe to open is judged, the motion attribute of the moving object is not considered in the judging method, the time for a driver to open the vehicle door is later than the time for judging by a system, and the motion direction and the distance from the moving object to the vehicle door are changed within the time interval.
Disclosure of Invention
Aiming at the defects in the prior art, the vehicle door anti-collision early warning system and the early warning method provided by the invention improve the accuracy of detecting a moving object near the vehicle door, and ensure the safety of the vehicle door when the vehicle door is opened to the greatest extent.
In order to solve the technical problems, the invention provides the following technical scheme:
a vehicle door anti-collision early warning system comprises a processing module, an acquisition module, an alarm module, a control module and a vehicle door locking module, wherein the acquisition module and the control module are respectively connected with the processing module, the alarm module and the vehicle door locking module are respectively connected with a controller,
the acquisition module is used for periodically acquiring the motion information of different moving objects in the detection area and sending the motion information to the processing module in real time;
the processing module is used for receiving and storing the motion information of different moving objects at different moments, predicting whether the next moment of the moving object is in an effective area for opening the vehicle door according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment, and sending the prediction result to the control module;
the control module is used for controlling the alarm module and the vehicle door locking module according to the prediction result;
the alarm module is used for alarming according to the control signal until the next control signal arrives;
the vehicle door locking module is used for locking the vehicle door according to the control signal until the next time the control signal arrives.
Furthermore, the acquisition module is a radar sensor, and the radar sensor is arranged on a rearview mirror on one side of the vehicle door; the processing module is a central processing unit; the alarm module is a sound-light alarm and is arranged on the outer side of the vehicle body; the control module is a controller; the vehicle door locking module is a vehicle door locking switch.
Further, the detection area of the acquisition module is larger than the effective area for opening the vehicle door, and the effective area for opening the vehicle door is determined by the position of the vehicle door, the length of the vehicle door and the maximum angle for opening the vehicle door.
Furthermore, the motion information of the moving object includes the distance between the moving object and the acquisition module, the motion speed of the moving object, and the motion direction of the moving object.
A vehicle door anti-collision early warning method comprises the following steps:
s01: periodically acquiring motion information of different moving objects in the detection area, and storing the motion information of different moving objects at different moments;
s02: predicting whether the moving object appears in an effective area for opening the vehicle door at the next moment according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment;
s03: and controlling the alarm module and the vehicle door locking module according to the prediction information at the next moment until the next control signal arrives.
Further, the process of predicting whether the moving object appears in the effective area for opening the vehicle door at the next moment in step S02 includes:
s0201: judging whether a moving object appears in the detection area or not according to the motion information of the moving object at the current moment, and executing step S0202 if no moving object appears; if the moving object appears, executing step S0203;
s0202: the safety at the next moment is judged, and the vehicle door can be opened;
s0203: and predicting whether the moving object enters an effective area for opening the vehicle door at the next moment by combining the distance between the moving object and the vehicle door at the current moment and the previous moment, the moving speed of the moving object and the moving direction of the moving object.
Further, the process of predicting whether the moving object will enter the effective area for opening the vehicle door at the next moment in step S0203 includes:
s020301: comparing the moving directions of the moving object at the current moment with the moving direction at the previous moment, and executing the step S020302 if the moving directions of the moving object at the current moment are consistent with the moving direction at the previous moment; otherwise, executing step S020303;
s020302: comparing the movement speeds at the current moment and the previous moment, and executing step S020304 if the movement speeds at the current moment and the previous moment are consistent; otherwise, step S020305 is executed;
s020303: comparing the movement speeds at the current moment and the previous moment, and executing the step S020308 if the movement speeds at the current moment and the previous moment are consistent; otherwise, go to step S020309;
s020304: calculating the position of the moving object at the next moment according to the moving speed and the moving direction, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020305: calculating the position of the moving object at the next moment according to the moving direction and the maximum moving speed, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020306: sending an instruction of the work of the vehicle door locking module, and not allowing to open the vehicle door at the next moment;
s020307: the safety at the next moment is judged, and the vehicle door can be opened;
s020308: calculating the position of the moving object at the next moment according to the moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020309: calculating the position of the moving object at the next moment according to the maximum moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020310: sending an instruction that the vehicle door locking module and the alarm module work simultaneously, and not allowing to open the vehicle door at the next moment;
s020311: and (5) judging the safety at the next moment, and opening the vehicle door.
According to the technical scheme, the invention has the beneficial effects that: the motion information of different moving objects in the detection area is periodically collected through the collection module, the motion information is sent to the processing module in real time, the processing module predicts whether the next moment of the moving object is in an effective area where the vehicle door is opened or not according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment, the prediction result is sent to the control module, the control module controls the alarm module and the vehicle door locking module to work, the change of the distance between the moving object and the vehicle door due to the motion attribute of the moving object is fully considered, the accuracy of detecting the moving object near the vehicle door is improved, and the safety of the vehicle door when the vehicle door is opened is.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a flow chart of the present invention;
FIG. 3 is a flowchart illustrating the step S02 of predicting whether the moving object appears in the effective area of the opened door at the next moment;
FIG. 4 is a flowchart of predicting whether the moving object will enter the effective area for opening the vehicle door at the next moment when the moving direction of the moving object at the current moment is consistent with the moving direction at the previous moment in step S0203;
fig. 5 is a flowchart of predicting whether the moving object will enter the effective area for opening the vehicle door at the next time when the moving directions of the moving object at the current time and the previous time are not consistent in step S0203.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, the vehicle door anti-collision early warning system provided in this embodiment includes a processing module, an acquisition module, an alarm module, a control module, and a vehicle door locking module, where the acquisition module and the control module are respectively connected to the processing module, the alarm module and the vehicle door locking module are respectively connected to the controller,
the acquisition module is used for periodically acquiring the motion information of different moving objects in the detection area and sending the motion information to the processing module in real time, the acquisition period of the acquisition module can be set according to actual requirements, and when the acquisition period is shorter, the acquisition frequency is higher, and the updating speed of the acquired data is higher;
the processing module is used for receiving and storing the motion information of different moving objects at different moments, predicting whether the next moment of the moving object is in an effective area for opening the vehicle door according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment, and sending the prediction result to the control module;
the control module is used for controlling the alarm module and the vehicle door locking module according to the prediction result;
the alarm module is used for alarming according to the control signal until the next control signal arrives;
the vehicle door locking module is used for locking the vehicle door according to the control signal until the next time the control signal arrives.
In actual use, the motion information of different moving objects in the detection area is periodically collected through the collection module, the motion information is sent to the processing module in real time, the processing module predicts whether the moving object is in an effective area where the vehicle door is opened at the next moment or not according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment, the prediction result is sent to the control module, the alarm module and the vehicle door locking module are controlled to work through the control module, the change of the distance between the moving object and the vehicle door due to the motion attribute of the moving object is fully considered, the accuracy of detecting the moving object near the vehicle door is improved, and the safety of the vehicle door when the vehicle door is.
In this embodiment, the acquisition module is a radar sensor, and the radar sensor is mounted on a rearview mirror on one side of a vehicle door, so that a moving object near the vehicle door can be detected conveniently; the processing module is a central processing unit; the alarm module is an audible and visual alarm and is arranged on the outer side of the vehicle body, so that pedestrians or vehicles near the vehicle door can be reminded of getting away from the vehicle door conveniently; the control module is a controller; the vehicle door locking module is a vehicle door locking switch.
In this embodiment, the detection area of the acquisition module is greater than the effective area for opening the vehicle door, the effective area for opening the vehicle door is determined by the position of the vehicle door, the length of the vehicle door and the maximum angle for opening the vehicle door together, that is, the position of the vehicle door is realized by a three-dimensional coordinate system, the position of the vehicle door uses the coordinate point of the fixed vehicle door as the origin, the effective area for opening the vehicle door uses the origin as the center of a circle, the length of the vehicle door as the radius, and the maximum angle for opening the vehicle door is the area of the circular arc area of the rotation angle.
In actual use, whether a moving object exists in the detection area is collected through the collection module, if the moving object exists, the moving object in the detection area is locked, whether the moving object falls into an effective area where the vehicle door is opened at the next moment is further judged according to the motion information of the moving object at the current moment and the previous moment, and therefore whether the door is opened at the next moment is predicted to be dangerous.
In this embodiment, the motion information of the moving object includes a distance between the moving object and the acquisition module, a motion speed of the moving object, and a motion direction of the moving object, and the distance between the moving object and the acquisition module is realized by a three-dimensional coordinate system.
In actual use, the distance change of the moving object in a time interval is calculated according to the moving speed and the moving direction of the moving object, so that the position of the moving object at the next moment is convenient to predict.
Referring to fig. 2, the vehicle door anti-collision early warning method includes the following steps:
s01: periodically acquiring motion information of different moving objects in the detection area, and storing the motion information of different moving objects at different moments;
s02: predicting whether the moving object appears in an effective area for opening the vehicle door at the next moment according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment;
s03: and controlling the alarm module and the vehicle door locking module according to the prediction information at the next moment until the next control signal arrives.
In actual use, whether the moving object falls into an effective area for opening the vehicle door at the next moment or not is further judged by collecting the motion information of different moving objects in the detection area according to the motion information of the same moving object at the current moment and the previous moment, so that whether the vehicle door can be opened at the next moment or not is predicted, the prediction result is sent to the control module, the control module controls the alarm module and the vehicle door locking module to work, the change of the distance between the moving object and the vehicle door due to the motion attribute of the moving object is fully considered, the accuracy of detection of the moving object near the vehicle door is improved, and the safety of the vehicle door when the vehicle door is opened is ensured to the maximum extent.
Referring to fig. 3, the process of predicting whether the moving object appears in the effective area for opening the vehicle door at the next moment in step S02 includes:
s0201: judging whether a moving object appears in the detection area or not according to the motion information of the moving object at the current moment, and executing step S0202 if no moving object appears; if the moving object appears, executing step S0203;
s0202: the safety at the next moment is judged, and the vehicle door can be opened;
s0203: and predicting whether the moving object enters an effective area for opening the vehicle door at the next moment by combining the distance between the moving object and the vehicle door at the current moment and the previous moment, the moving speed of the moving object and the moving direction of the moving object.
In actual use, whether a moving object exists in the detection area is judged firstly, and if the moving object does not exist, the vehicle door can be opened at the next moment in a forecast mode; if the moving object exists, the moving object in the detection area is locked, then, according to the distance between the moving object and the vehicle door at the current moment and the previous moment of the moving object, the moving speed of the moving object and the moving direction of the moving object, the distance between the moving object and the vehicle door at the next moment, the moving speed of the moving object and the moving direction of the moving object are further calculated, and whether the vehicle door can be opened at the next moment is predicted.
It should be noted that, a distance between the edge of the detection area and the edge of the effective area where the vehicle door is opened is long enough, and the length of the distance satisfies that when no moving object is detected in the detection area at the current moment, the moving object does not move into the effective area where the vehicle door is opened at the next moment.
Referring to fig. 4 and 5, the process of predicting whether the moving object will enter the effective area of the opened vehicle door at the next moment in step S0203 includes:
s020301: comparing the moving directions of the moving object at the current moment with the moving direction at the previous moment, and executing the step S020302 if the moving directions of the moving object at the current moment are consistent with the moving direction at the previous moment; otherwise, executing step S020303;
s020302: comparing the movement speeds at the current moment and the previous moment, and executing step S020304 if the movement speeds at the current moment and the previous moment are consistent; otherwise, step S020305 is executed;
s020303: comparing the movement speeds at the current moment and the previous moment, and executing the step S020308 if the movement speeds at the current moment and the previous moment are consistent; otherwise, go to step S020309;
s020304: calculating the position of the moving object at the next moment according to the moving speed and the moving direction, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020305: calculating the position of the moving object at the next moment according to the moving direction and the maximum moving speed, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020306: sending an instruction of the work of the vehicle door locking module, and not allowing to open the vehicle door at the next moment;
s020307: the safety at the next moment is judged, and the vehicle door can be opened;
s020308: calculating the position of the moving object at the next moment according to the moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020309: calculating the position of the moving object at the next moment according to the maximum moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020310: sending an instruction that the vehicle door locking module and the alarm module work simultaneously, and not allowing to open the vehicle door at the next moment;
s020311: and (5) judging the safety at the next moment, and opening the vehicle door.
In actual use, the influence of the factors of the moving direction and the moving speed of the moving object at the current moment and the previous moment is fully considered, and when the moving direction and the moving speed of the moving object at the current moment and the previous moment are inconsistent, the safety of opening the door is ensured according to the maximum moving speed and the direction closest to the vehicle door.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (4)
1. The vehicle door anti-collision early warning method is characterized by comprising the following steps:
s01: periodically acquiring motion information of different moving objects in the detection area, and storing the motion information of different moving objects at different moments;
s02: predicting whether the moving object appears in an effective area for opening the vehicle door at the next moment according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment;
s03: controlling an alarm module and a vehicle door locking module according to the prediction information at the next moment until the next control signal arrives;
the process of predicting whether the moving object appears in the effective area of the opened vehicle door at the next moment in the step S02 includes:
s0201: judging whether a moving object appears in the detection area or not according to the motion information of the moving object at the current moment, and executing step S0202 if no moving object appears; if the moving object appears, executing step S0203;
s0202: the safety at the next moment is judged, and the vehicle door can be opened;
s0203: predicting whether the moving object enters an effective area for opening the vehicle door at the next moment by combining the distance between the moving object and the vehicle door at the current moment and the previous moment, the moving speed of the moving object and the moving direction of the moving object;
the process of predicting whether the moving object will enter the effective area for opening the vehicle door at the next moment in the step S0203 comprises the following steps:
s020301: comparing the moving directions of the moving object at the current moment with the moving direction at the previous moment, and executing the step S020302 if the moving directions of the moving object at the current moment are consistent with the moving direction at the previous moment; otherwise, executing step S020303;
s020302: comparing the movement speeds at the current moment and the previous moment, and executing step S020304 if the movement speeds at the current moment and the previous moment are consistent; otherwise, step S020305 is executed;
s020303: comparing the movement speeds at the current moment and the previous moment, and executing the step S020308 if the movement speeds at the current moment and the previous moment are consistent; otherwise, go to step S020309;
s020304: calculating the position of the moving object at the next moment according to the moving speed and the moving direction, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020305: calculating the position of the moving object at the next moment according to the moving direction and the maximum moving speed, and executing step S020306 if the position of the moving object is in the effective area range for opening the vehicle door; otherwise, execute step S020307;
s020306: sending an instruction of the work of the vehicle door locking module, and not allowing to open the vehicle door at the next moment;
s020307: the safety at the next moment is judged, and the vehicle door can be opened;
s020308: calculating the position of the moving object at the next moment according to the moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020309: calculating the position of the moving object at the next moment according to the maximum moving speed and the moving direction closest to the car door, and executing step S020310 if the position of the moving object is in the range of the effective area for opening the car door; otherwise, go to step S020311;
s020310: sending an instruction that the vehicle door locking module and the alarm module work simultaneously, and not allowing to open the vehicle door at the next moment;
s020311: and (5) judging the safety at the next moment, and opening the vehicle door.
2. A vehicle door anti-collision early warning system is characterized by comprising a processing module, an acquisition module, an alarm module, a control module and a vehicle door locking module, wherein the acquisition module and the control module are respectively connected with the processing module, the alarm module and the vehicle door locking module are respectively connected with a controller,
the acquisition module is used for periodically acquiring the motion information of different moving objects in the detection area and sending the motion information to the processing module in real time;
the processing module is used for receiving and storing the motion information of different moving objects at different moments, predicting whether the next moment of the moving object is in an effective area for opening the vehicle door according to the motion information of the same moving object at the current moment and the motion information of the same moving object at the previous moment, and sending the prediction result to the control module; the motion information of the moving object comprises the distance between the moving object and the acquisition module, the motion speed of the moving object and the motion direction of the moving object;
the control module is used for controlling the alarm module and the vehicle door locking module according to the prediction result;
the alarm module is used for alarming according to the control signal until the next control signal arrives;
the vehicle door locking module is used for locking a vehicle door according to the control signal until the next control signal arrives;
the above door impact avoidance system operates in accordance with the door impact avoidance method of claim 1.
3. The vehicle door anti-collision early warning system according to claim 2, wherein the acquisition module is a radar sensor, and the radar sensor is mounted on a rearview mirror on one side of a vehicle door; the processing module is a central processing unit; the alarm module is a sound-light alarm and is arranged on the outer side of the vehicle body; the control module is a controller; the vehicle door locking module is a vehicle door locking switch.
4. The vehicle door anti-collision early warning system according to claim 2, wherein the detection area of the acquisition module is larger than the effective area of the vehicle door opening, and the effective area of the vehicle door opening is determined by the position of the vehicle door, the length of the vehicle door and the maximum angle of the vehicle door opening.
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CN115749470B (en) * | 2022-12-22 | 2023-11-24 | 天津中德应用技术大学 | Vehicle door safe opening system and method based on motion trail prediction |
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