1. The utility model provides an emergent auto-lock type car door control system based on radar technology, is including installing a plurality of door bodies (2) on car body (1), form through door articulated elements (3) between car body (1) and door body (2) and rotate the connection its characterized in that: a radar door opening detection system is installed in the vehicle door body (2), the radar door opening detection system comprises a processor unit, the input end of the processor unit is connected with a radar detection unit, and the output end of the processor unit is connected with a self-locking control unit;

door body (2) are close to door articulated elements (3) one end and have seted up automatically controlled mounting groove (201), fixed mounting has arc insulating support (401) in automatically controlled mounting groove (201), arc insulating support (401) are kept away from a plurality of just gentle self-change locking lever (4) of door body (2) one end fixedly connected with, and are a plurality of just gentle self-change locking lever (4) are kept away from door body (2) one end fixedly connected with preformed hole extension board (5), and preformed hole extension board (5) are connected with automobile body (1), the auto-lock control unit output cooperatees with just gentle self-change locking lever (4), door body (2) are kept away from door articulated elements (3) one end and are installed radar probe (6), the radar detection unit input cooperatees with radar probe (6).

2. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 1, wherein: automatically controlled mounting groove (201) are close to a plurality of hemisphere metal contacts (202) of arc insulating support (401) one end fixedly connected with, arc insulating support (401) are close to a plurality of electrically conductive hemisphere grooves (402) of door body (2) one end fixedly connected with, and electrically conductive hemisphere groove (402) cooperatees with hemisphere metal contact (202), hemisphere metal contact (202) pass through wire and auto-lock the control unit electric connection.

3. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 2, wherein: the rigid-flexible self-switching locking rod (4) comprises a flexible hollow sleeve (403), the flexible hollow sleeve (403) is fixedly connected between the preformed hole support plate (5) and the arc-shaped insulating support (401), an insulating liquid medium (404) is filled in the flexible hollow sleeve (403), and conductive suspended particles (405) are mixed in the insulating liquid medium (404).

4. An emergency self-locking type automobile door control system based on radar technology as claimed in claim 3, wherein: one end of the conductive semispherical groove (402), which is far away from the vehicle door body (2), is fixedly connected with a plurality of conductive leads, and the conductive leads penetrate through the arc-shaped insulating support (401) and extend into the flexible hollow sleeve (403).

5. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 1, wherein: door body (2) are kept away from door articulated elements (3) one end and are installed guide type collision buffer subassembly (8), and guide type collision buffer subassembly (8) are located and are close to car body (1) one side, guide type collision buffer subassembly (8) are including gasbag guide sheath (801), fixedly connected with gasbag guide sheath (801) on door body (2), install buffering gasbag (802) in gasbag guide sheath (801).

6. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 5, wherein: door body (2) are kept away from door articulated elements (3) one end fixedly connected with and are guided draw runner (9), it guides the knot to guide draw runner (9) outer end sliding connection, guide knot and buffer air bag (802) expansion end fixed connection.

7. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 7, wherein: door body (2) keep away from door articulated elements (3) one side internally mounted has adjustable fan, door body (2) keep away from door articulated elements (3) one end and seted up a pair of scavenge port (7), and two scavenge ports (7) are located radar probe (6) upper and lower both sides respectively, scavenge port (7) are put through with adjustable fan, buffering air bag (802) are close to door body (2) one side fixedly connected with rather than control trachea (803) of putting through mutually, and control trachea (803) other end is put through with adjustable fan.

8. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 6, wherein: the radar door opening detection system further comprises a protection adjusting unit, the output end of the protection adjusting unit is connected with the adjustable fan, and the input end of the protection adjusting unit is connected with the processor unit.

9. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 1, wherein: door body (2) keep away from door articulated elements (3) one side internally mounted has miniature radar subassembly, miniature radar subassembly is connected through wire radar detecting element and radar probe (6) respectively.

10. The emergency self-locking type automobile door control system based on radar technology as claimed in claim 1, wherein: the radar detection system that opens door still closes the detecting element including the door, the detecting element input is closed to the door is connected with radar detecting element, the detecting element output is closed to the door is connected with the processor unit, the processor unit is connected with alarm system in automobile body (1) through the wire.

Background

Radar, a transliteration of radio in english, is derived from the acronym of radio detection and ranging, and means "radio detection and ranging", i.e. finding objects and determining their spatial positions by radio. Therefore, radar is also referred to as "radiolocation". Radars are electronic devices that detect objects using electromagnetic waves. The radar emits electromagnetic waves to irradiate a target and receives the echo of the target, so that information such as the distance from the target to an electromagnetic wave emission point, the distance change rate (radial speed), the azimuth and the altitude is obtained.

At present, due to the fact that objects behind a car are observed carelessly when the car parks to get on or off the car, the phenomenon that the car comes from the back, the coming car collides with a car door frequently occurs, not only is the economic loss of a car owner caused, but also certain casualties are easily caused, and the bad influence on social environment is easily caused. However, the existing solutions mainly rely on the autonomous observation of people to perform the door opening operation, and cannot effectively avoid the occurrence of such events. Therefore, the invention provides an emergency self-locking automobile door control system based on a radar technology, and aims to solve the problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an emergency self-locking automobile door control system based on a radar technology, which can automatically lock an automobile door body by a rigid-flexible self-locking rod when a rear person or an incoming automobile is detected when the automobile door body is opened through the matching of a radar door opening detection system, the rigid-flexible self-locking rod and a radar probe, thereby effectively avoiding the continuous opening of the automobile door body, providing an avoiding space for the rear person and the incoming automobile, reducing the occurrence probability of safety accidents, improving the safety during door opening, replacing manual observation by the radar door opening detection system, improving the accuracy and the reaction speed, and effectively reducing the economic loss of an automobile owner and the personnel damage caused by the automobile door opening.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An emergency self-locking automobile door control system based on a radar technology comprises a plurality of automobile door bodies arranged on an automobile body, wherein the automobile body and the automobile door bodies are in rotating connection through automobile door hinge parts;

the door body is close to door articulated elements one end and has seted up automatically controlled mounting groove, fixed mounting has the arc insulating support in the automatically controlled mounting groove, the arc insulating support is kept away from a plurality of just gentle self-change locking bars of door body one end fixedly connected with, and is a plurality of just gentle self-change locking bar is kept away from door body one end fixedly connected with preformed hole extension board, and the preformed hole extension board is connected with automobile body, the auto-lock control unit output cooperatees with just gentle self-change locking bar, the door body is kept away from door articulated elements one end and is installed the radar probe, radar detection unit input cooperatees with the radar probe. Through radar door opening detection system, the cooperation of just gentle self-conversion locking lever and radar probe, can detect when opening the door body that the rear has the people or come, just gentle self-conversion locking lever can carry out automatic locking to the door body, effectively avoid opening of door body, come people and come the car to provide for the rear and dodge the space, reduce incident's emergence probability, the security when improving the door, and it replaces artifical the observation to open the door detection system through the radar, improve accuracy and reaction rate, effectively reduce car owner's economic loss and the personnel's damage that causes.

Further, automatically controlled mounting groove is close to a plurality of hemisphere metal contacts of arc insulating support one end fixedly connected with, arc insulating support is close to a plurality of electrically conductive hemisphere grooves of door body one end fixedly connected with, and electrically conductive hemisphere groove and hemisphere metal contact cooperate, hemisphere metal contact passes through wire and auto-lock the control unit electric connection. Through mutually supporting of hemisphere metal contact and conductive hemisphere groove, effectively realize the autonomous control of electric power, improve radar detection system's that opens the door control efficiency, reduce reaction time, and then effectively improve auto-lock efficiency.

Furthermore, the rigid-flexible self-switching locking rod comprises a flexible hollow sleeve, the flexible hollow sleeve is fixedly connected between the preformed hole supporting plate and the arc-shaped insulating support, an insulating liquid medium is filled in the flexible hollow sleeve, and conductive suspended particles are mixed in the insulating liquid medium.

Furthermore, the conductive semispherical groove is far away from one end of the vehicle door body and is fixedly connected with a plurality of conductive leads, and the conductive leads penetrate through the arc-shaped insulating support and extend into the flexible hollow sleeve. Electrically conductive hemisphere groove lets in voltage to flexible hollow sleeve inside through electrically conductive lead wire, make electrically conductive suspended particle arrange into the chain along the magnetic field line under power magnetic field's effect, and then turn into the rigidity from the flexibility with just gentle auto-change locking lever, make the door body can not continue to rotate and open, effectively realize the auto-lock of door body, effectively avoid opening of door body continuously to open people or drive to the rear and make bigger damage, and electrically conductive suspended particle loses magnetism behind the outage of electrically conductive hemisphere groove, make just gentle auto-change locking lever turn into the flexibility fast, effectively keep the normal use of door body.

Further, door body is kept away from door articulated elements one end and is installed guide type collision buffer assembly, and guide type collision buffer assembly is located and is close to automobile body one side, guide type collision buffer assembly is including gasbag guide sheath, fixedly connected with gasbag guide sheath on the door body, install buffering gasbag in the gasbag guide sheath. When the door body opens the angle great, the radar detection system that opens the door judges that the rear comes the people or the distance of coming the car is nearer, and when dangerous great, control buffering air bag is bloated along air bag guide sheath direction of guidance, keeps away from door articulated elements one end to the door body and wraps up, cushions the impulsive force, when reducing the car owner damage, protects the striking person, reduces striking person's health damage.

Further, the door body is far away from door articulated elements one end fixedly connected with and guides the sliding strip, guide sliding strip outer end sliding connection and guide the knot, guide knot and buffering air bag expansion end fixed connection. Guide the sliding belt and further guide buffering air bag, make it effectively wrap up the door body, prop up buffering air bag, improve protection precision and increase area to can guide when buffering air bag retrieves, improve recovery efficiency and retrieve the precision, reduce buffering air bag when retrieving with the friction of door body, improve buffering air bag's life.

Furthermore, the adjustable fan is installed inside one side, far away from the door hinged part, of the door body, one end, far away from the door hinged part, of the door body is provided with a pair of air vents, the two air vents are respectively located on the upper side and the lower side of the radar probe, the air vents are communicated with the adjustable fan, the buffering air bag is fixedly connected to one side, close to the door body, of the buffering air bag, a control air pipe communicated with the buffering air bag, and the other end of the control air pipe is communicated with the adjustable fan. Adjustable fan can effectively aerify or deflate in to the buffering gasbag bag through control trachea, when buffering gasbag bag played the buffering striking, can retrieve buffering gasbag bag, makes buffering gasbag bag can reuse, reduces the waste of resource, reduces the cost of guide type collision buffering subassembly.

Furthermore, the radar door opening detection system further comprises a protection adjusting unit, the output end of the protection adjusting unit is connected with the adjustable fan, and the input end of the protection adjusting unit is connected with the processor unit. The protection adjusting unit can be executed according to the command transmitted by the processor unit, and controls the working property of the adjustable fan, so that the functions of air suction and air exhaust can be effectively achieved.

Furthermore, the inside of one side of the car door body, which is far away from the car door hinge part, is provided with a miniature radar component, and the miniature radar component is respectively connected with a radar detection unit and a radar probe through a wire. The miniature radar subassembly is controlled the distance and the precision that detect, makes the just gentle conversion locking lever auto-lock of rotation of processor unit control when setting for the detection range for certain numerical value, and the rear is got a car or is come the people apart from when far away, does not lock the door body, improves radar detection system's that opens the door practicality and intellectuality.

Furthermore, the radar door opening detection system further comprises a vehicle door closing detection unit, the input end of the vehicle door closing detection unit is connected with the radar detection unit, the output end of the vehicle door closing detection unit is connected with the processor unit, and the processor unit is connected with an alarm system in the automobile body through a wire. The closing condition of the vehicle door body is detected through the radar monitoring unit and the radar probe, and whether the vehicle door closing detection unit judges to be closed or not is completed, so that the processor unit can remind a vehicle owner through the alarm system, and the safety of the vehicle body in the driving process is also improved while the functionality of the radar door opening detection system is improved.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme passes through the radar detecting system that opens the door, the cooperation of just gentle self-conversion locking lever and radar probe, can detect when opening the door body that the rear has the visitor or the car that comes, just gentle self-conversion locking lever can carry out automatic locking to the door body, effectively avoid opening of continuation of door body, come the visitor and come the car for the rear and provide and dodge the space, reduce incident's emergence probability, the security when opening the door is improved, and it replaces artifical the observation to open the door detecting system through the radar, improve accuracy and reaction rate, effectively reduce car owner's economic loss and the personnel's that cause damage.

(2) Through mutually supporting of hemisphere metal contact and conductive hemisphere groove, effectively realize the autonomous control of electric power, improve radar detection system's that opens the door control efficiency, reduce reaction time, and then effectively improve auto-lock efficiency.

(3) Electrically conductive hemisphere groove lets in voltage to flexible hollow sleeve inside through electrically conductive lead wire, make electrically conductive suspended particle arrange into the chain along the magnetic field line under power magnetic field's effect, and then turn into the rigidity from the flexibility with just gentle auto-change locking lever, make the door body can not continue to rotate and open, effectively realize the auto-lock of door body, effectively avoid opening of door body continuously to open people or drive to the rear and make bigger damage, and electrically conductive suspended particle loses magnetism behind the outage of electrically conductive hemisphere groove, make just gentle auto-change locking lever turn into the flexibility fast, effectively keep the normal use of door body.

(4) When the door body opens the angle great, the radar detection system that opens the door judges that the rear comes the people or the distance of coming the car is nearer, and when dangerous great, control buffering air bag is bloated along air bag guide sheath direction of guidance, keeps away from door articulated elements one end to the door body and wraps up, cushions the impulsive force, when reducing the car owner damage, protects the striking person, reduces striking person's health damage.

(5) Guide the sliding belt and further guide buffering air bag, make it effectively wrap up the door body, prop up buffering air bag, improve protection precision and increase area to can guide when buffering air bag retrieves, improve recovery efficiency and retrieve the precision, reduce buffering air bag when retrieving with the friction of door body, improve buffering air bag's life.

(6) Adjustable fan can effectively aerify or deflate in to the buffering gasbag bag through control trachea, when buffering gasbag bag played the buffering striking, can retrieve buffering gasbag bag, makes buffering gasbag bag can reuse, reduces the waste of resource, reduces the cost of guide type collision buffering subassembly.

(7) The protection adjusting unit can be executed according to the command transmitted by the processor unit, and controls the working property of the adjustable fan, so that the functions of air suction and air exhaust can be effectively achieved.

(8) The miniature radar subassembly is controlled the distance and the precision that detect, makes the just gentle conversion locking lever auto-lock of rotation of processor unit control when setting for the detection range for certain numerical value, and the rear is got a car or is come the people apart from when far away, does not lock the door body, improves radar detection system's that opens the door practicality and intellectuality.

(9) The closing condition of the vehicle door body is detected through the radar monitoring unit and the radar probe, and whether the vehicle door closing detection unit judges to be closed or not is completed, so that the processor unit can remind a vehicle owner through the alarm system, and the safety of the vehicle body in the driving process is also improved while the functionality of the radar door opening detection system is improved.

Drawings

FIG. 1 is a schematic diagram of a system framework of the present invention;

FIG. 2 is a schematic top view of the automotive body of the present invention;

FIG. 3 is a schematic view of a door body axis measurement configuration of the present invention;

FIG. 4 is a schematic view of a partially enlarged structure of one end of the locking rod with rigid and flexible self-switching of the present invention;

FIG. 5 is a partial enlarged view of one end of the radar probe of the present invention;

FIG. 6 is a schematic diagram of a rigid-flexible self-switching lock rod axial structure according to the present invention;

FIG. 7 is a schematic diagram of the internal structure of the rigid-flex self-switching locking bar of the present invention when flexible;

FIG. 8 is a schematic view of the rigid-flex self-shifting lock bar of the present invention;

FIG. 9 is a schematic illustration of an exploded structure of the guided crash cushion assembly of the present invention;

FIG. 10 is a schematic view of a partially enlarged structure of an electrically controlled mounting slot according to the present invention;

fig. 11 is a schematic diagram of a system control flow structure according to the present invention.

The reference numbers in the figures illustrate:

the automobile comprises an automobile body 1, a door body 2, an electric control mounting groove 201, a hemispherical metal contact 202, a door hinge 3, a rigid-flexible self-switching locking rod 4, an arc-shaped insulating bracket 401, a conductive hemispherical groove 402, a flexible hollow sleeve 403, an insulating liquid medium 404, a conductive suspended particle 405, a reserved hole support plate 5, a radar probe 6, a ventilation port 7, an 8-guide type collision buffer assembly, an 801 airbag guide sheath, an 802-buffer airbag, a 803 control air pipe and a 9-guide sliding belt.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-11, an emergency self-locking type vehicle door control system based on radar technology includes a plurality of door bodies 2 mounted on a vehicle body 1, the vehicle body 1 and the door bodies 2 are rotatably connected by a door hinge 3, a radar door opening detection system is mounted in the door bodies 2, the radar door opening detection system includes a processor unit, an input end of the processor unit is connected with a radar detection unit, and an output end of the processor unit is connected with a self-locking control unit; please refer to fig. 3-5, an electric control mounting groove 201 is provided at one end of a door body 2 close to a door hinge member 3, an arc insulation support 401 is fixedly mounted in the electric control mounting groove 201, the arc insulation support 401 is far away from a plurality of rigid-flexible self-conversion locking rods 4 fixedly connected to one end of the door body 2, the plurality of rigid-flexible self-conversion locking rods 4 are far away from the door body 2, a preformed hole supporting plate 5 is fixedly connected to one end of the door body 5, the preformed hole supporting plate 5 is connected to a car body 1, an output end of a self-locking control unit is matched with the rigid-flexible self-conversion locking rods 4, a radar probe 6 is mounted at one end of the door body 2 far away from the door hinge member 3, and an input end of the radar detection unit is matched with the radar probe 6. Through radar door opening detection system, the cooperation of rigid and flexible self-conversion locking lever 4 and radar probe 6, can detect when opening door body 2 that the rear has the people or come the vehicle, rigid and flexible self-conversion locking lever 4 can carry out automatic locking to door body 2, effectively avoid continuing to open of door body 2, provide the dodge space for the rear comes the people and comes the vehicle, reduce incident's emergence probability, the security when improving the door, and open the door detection system through the radar and replace manual observation, improve accuracy and reaction rate, effectively reduce car owner's economic loss and the personnel's damage that causes.

Referring to fig. 6 and 10, one end of the electric control installation slot 201 close to the arc-shaped insulating support 401 is fixedly connected with a plurality of hemispherical metal contacts 202, one end of the arc-shaped insulating support 401 close to the door body 2 is fixedly connected with a plurality of conductive hemispherical grooves 402, the conductive hemispherical grooves 402 are matched with the hemispherical metal contacts 202, and the hemispherical metal contacts 202 are electrically connected with the self-locking control unit through wires. Through mutually supporting of hemisphere metal contact 202 and electrically conductive hemisphere groove 402, effectively realize the autonomous control of electric power, improve radar door opening detecting system's control efficiency, reduce reaction time, and then effectively improve auto-lock efficiency.

Referring to fig. 7 and 8, the rigid-flexible self-switching locking rod 4 includes a flexible hollow sleeve 403, the flexible hollow sleeve 403 is fixedly connected between the preformed hole support plate 5 and the arc-shaped insulating support 401, an insulating liquid medium 404 is filled in the flexible hollow sleeve 403, and conductive suspended particles 405 are mixed in the insulating liquid medium 404.

Referring to fig. 7 and 8, a plurality of conductive leads are fixedly connected to one end of the conductive semispherical slot 402 away from the door body 2, and the conductive leads penetrate through the arc-shaped insulating support 401 and extend into the flexible hollow sleeve 403. Conductive hemisphere groove 402 lets in voltage to flexible hollow sleeve 403 inside through electrically conductive lead wire, make electrically conductive suspended particle 405 arrange into the chain along the magnetic field line under power magnetic field's effect, and then turn into rigidity from flexibility with just gentle self-changing locking lever 4, make door body 2 can not continue to rotate and open, effectively realize door body 2's auto-lock, effectively avoid opening of door body 2 to open people or open the car at the rear and make bigger damage, and electrically conductive suspended particle 405 loses magnetism after conductive hemisphere groove 402 outage, make just gentle self-changing locking lever 4 turn into flexibility fast, effectively keep door body 2's normal use.

Referring to fig. 2, a micro radar assembly is installed inside one side of the door body 2, which is far away from the door hinge 3, and the micro radar assembly is connected with the radar probe 6 through a wire respectively. Miniature radar subassembly is controlled the distance and the precision that detect, makes the rigid gentle self-switching locking lever 4 auto-lock of treater unit control when setting for the detection range for certain numerical value, and the rear is got a car or is come the people apart from when far away, does not lock door body 2, improves radar detection system's that opens the door practicality and intellectuality.

Referring to fig. 1-11, the method of use: when a car owner or a passenger opens the car door body 2, the micro radar assembly detects a coming person or a coming car behind the car body 1 through the radar probe 6, when the coming person or the coming car is detected, the micro radar assembly judges the speed and the distance of the coming person or the coming car, after the value of the coming person or the coming car exceeds a safe range value, data are transmitted to the processor unit, the processor control unit transmits the data to the self-locking control unit, the self-locking control unit passes through the hemispherical metal contact 202 and the conductive hemispherical groove 402 to supply voltage to the flexible hollow sleeve 403, so that the conductive suspended particles 405 inside the flexible hollow sleeve 403 are arranged into a chain along a magnetic field line under the action of an electric magnetic field (see figure 8), further, the rigidity of the insulating liquid medium 404 and the flexible hollow sleeve is increased, the rigid-flexible self-switching locking rod 4 is converted from flexible to rigid, and the car door body 2 is locked, the continuous opening of the vehicle door body 2 is prevented, after the radar probe 6 detects that people and vehicles come to get out of the vehicle door body 2 or walk through the vehicle body 1, data are transmitted to the processor control unit through the miniature radar assembly, the processor control unit feeds back the data to the self-locking control unit, the self-locking control unit cuts off the power of the hemispherical metal contact 202, the power in the flexible hollow sleeve 403 is lost, and then a chain formed by the conductive suspended particles 405 is scattered (see fig. 7), so that the rigid-flexible self-conversion locking rod 4 is recovered to be flexible, and the vehicle door body 2 can be continuously opened; when the rear of the automobile is not detected to have a coming automobile and a coming automobile, or the speed and the distance of the coming automobile and the coming automobile do not exceed the safety range, the micro radar assembly does not transmit data to the processor control unit, and then the self-locking control unit enables the hemispherical metal contact 202 and the conductive hemispherical groove 402 to be kept in a power-off state, so that the rigid-flexible self-conversion locking rod 4 continuously keeps flexibility, and the automobile door body 2 can be normally opened and closed.

Example 2:

referring to fig. 1 to 11, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 3, 5 and 9, a guiding type collision buffer assembly 8 is installed at one end of the door body 2 far from the door hinge 3, and the guiding type collision buffer assembly 8 is located at one side close to the vehicle body 1, the guiding type collision buffer assembly 8 includes an airbag guiding sheath 801, the door body 2 is fixedly connected with the airbag guiding sheath 801, and a buffer airbag 802 is installed in the airbag guiding sheath 801. When door body 2 opens the angle great, the radar detection system that opens the door judges that the rear comes the people or the distance of coming the car is nearer, and when dangerous great, control buffering air bag 802 is bloated along air bag guide sheath 801 direction of guidance, keeps away from 3 one ends of door articulated elements to door body 2 and wraps up, cushions the impulsive force, when reducing the car owner damage, protects the striking person, reduces striking person's health damage.

Referring to fig. 9, a guiding sliding belt 9 is fixedly connected to one end of the door body 2 away from the door hinge 3, an outer end of the guiding sliding belt 9 is slidably connected to a guiding buckle, and the guiding buckle is fixedly connected to a movable end of the airbag 802. Guide the draw runner 9 and further guide buffering air bag 802, make it effectively wrap up door body 2, prop up buffering gasbag, improve protection accuracy and increase protection area to can guide when buffering air bag 802 retrieves, improve recovery efficiency and retrieve the precision, reduce buffering air bag 802 when retrieving with door body 2's friction, improve buffering air bag 802's life.

Referring to fig. 5, an adjustable fan is installed inside one side of the door body 2, which is away from the door hinge 3, a pair of ventilation ports 7 is formed in one end of the door body 2, which is away from the door hinge 3, the two ventilation ports 7 are respectively located at the upper and lower sides of the radar probe 6, the ventilation ports 7 are communicated with the adjustable fan, a control air pipe 803 communicated with the buffer air bag 802 is fixedly connected to one side of the door body 2, and the other end of the control air pipe 803 is communicated with the adjustable fan. Adjustable fan can effectively inflate or deflate in to buffering air bag 802 through control trachea 803, when buffering air bag 802 played the buffering striking, can retrieve buffering air bag 802, makes buffering air bag 802 can reuse, reduces the waste of resource, reduces guide type collision buffering subassembly 8's cost.

Referring to fig. 1 and 11, the radar door opening detection system further includes a protection adjustment unit, an output end of the protection adjustment unit is connected to the adjustable fan, and an input end of the protection adjustment unit is connected to the processor unit. The protection adjusting unit can be executed according to the command transmitted by the processor unit, and controls the working property of the adjustable fan, so that the functions of air suction and air exhaust can be effectively achieved.

Referring to fig. 1-11, the method of use: on the basis of the using method in the embodiment 1, when the radar door opening detection system judges that a rear coming person or a coming vehicle is close and has high danger, data is transmitted to the processor unit, the processor unit locks the door body 2 through the self-locking control unit and the rigid-flexible self-switching locking rod 4 and simultaneously transmits the data to the protection adjusting unit, the adjustable fan generates air suction in advance, external air is absorbed through the ventilation port 7 and is transmitted into the buffer air bag 802 through the control air pipe 803, the buffer air bag 802 is expanded under the guide of the air bag guide sheath 801 and the guide sliding belt 9 to wrap the door body 2, the impact force is effectively buffered, the damage to the rear coming person or the coming vehicle is reduced, the damage to the door body 2 is reduced, and because the position of opening the door body 2 after the vehicle is normally stopped, the rear of the vehicle body 1 is normally a pedestrian or a non-motor vehicle, therefore, the bulged buffering air bag 802 can effectively protect the striker and buffer the impact force, so that the damage to the vehicle door body 2 is reduced, the personal injury of the striker is reduced, and the safety is improved; after the impact is finished, the processor unit receives a command controlled by a vehicle owner, the command is transmitted to the protection adjusting unit, the adjustable fan is controlled to generate blowing work, air in the buffer air bag 802 is sucked out through the control air pipe 803 and is exhausted outwards through the ventilation port 7, the volume of the buffer air bag 802 is reduced, and the buffer air bag retracts under the guide of the guide sliding belt 9 and the air bag guide sheath 801, so that the buffer air bag is convenient to reuse.

Example 3:

referring to fig. 1 to 11, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 3 differs from example 1 in that: referring to fig. 1 and 11, the radar door opening detection system further includes a door closing detection unit, an input end of the door closing detection unit is connected to the radar detection unit, an output end of the door closing detection unit is connected to a processor unit, and the processor unit is connected to an alarm system in the vehicle body 1 through a wire. The closing state of the vehicle door body 2 is detected through the miniature radar assembly and the radar probe 6, and whether the vehicle door closing detection unit is used for judging closing completion or not is judged, so that the processor unit can remind a vehicle owner through an alarm system, and the safety of the vehicle body 1 in the driving process is improved while the functionality of the radar door opening detection system is improved.

Referring to fig. 1-11, the method of use: on the basis of the using method in the embodiment 1, when a vehicle owner or a passenger gets on the vehicle and closes the vehicle door body 2, the micro radar assembly detects the closing position of the vehicle door body 2 through the radar probe 6 and transmits data to the vehicle door closing detection unit through the radar monitoring unit, the vehicle door closing detection unit transmits the data to the processor unit when judging that the vehicle door body 2 is closed, the processor unit transmits the data to the alarm system in the vehicle body 1 to remind the vehicle owner, so that the vehicle owner closes the vehicle door body 2 again, the closing of the vehicle door body 2 is ensured, and the safety of the driving process is improved; when the door closing detection means determines that the door body 2 is closed, no action is generated.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.