Vehicle flexible anti-collision outer frame based on polyaniline sensor

Abstract

The invention discloses a vehicle flexible anti-collision outer frame based on a polyaniline sensor, which comprises a first vehicle body mounting rack, a second vehicle body mounting rack, a connecting skeleton, a stable structure, a fitting support arm, an extension support arm, a first anti-collision frame, a second anti-collision frame, a flexible sensor and a mounting bonding block, a mounting bonding block is fixedly mounted on the inner wall of the first vehicle body mounting frame and bonded to the surface of the vehicle body, and the stabilizing structure is fixedly mounted above the first vehicle body mounting frame; the attaching supporting arms are fixedly mounted at the inner ends of the two first vehicle body mounting frames, the first anti-collision frame is fixedly mounted at the inner ends of the two attaching supporting arms, and a flexible sensor is fixedly mounted in the first anti-collision frame. The vehicle flexible anti-collision outer frame is provided with the stable structure, the first anti-collision frame, the second anti-collision frame and the flexible sensor, and the problems that an existing vehicle flexible anti-collision outer frame is still low in detection precision, does not have multi-stage anti-collision sensing detection and cannot meet installation of various vehicle types are solved.

Description

Technical Field

[0001] The present invention relates to the field of flexible anti-collision outer frame devices for vehicles, in particular to a flexible anti-collision outer frame for vehicles based on a polyaniline sensor. Background Art

[0002] A flexible vehicle anti-collision system based on polyaniline sensors is a novel intelligent protection technology. Its core principle is to utilize the piezoresistive properties of conductive polymer materials to achieve real-time sensing of collision forces. The system primarily consists of a flexible sensing unit and a buffer structure. The sensing unit utilizes polyaniline nanofibers as the sensitive material, fabricated into a flexible sensor array through a specialized thin-film process. The buffer structure is constructed from elastic polymer materials and optimized mechanically to achieve gradient absorption of collision energy. When a vehicle collides, the anti-collision structure deforms, causing the resistance of the embedded polyaniline sensors to change. This change is converted into an electrical signal by a signal processing circuit and transmitted to the vehicle control system. This technology overcomes the limitations of traditional rigid anti-collision beams, maintaining the necessary protective performance while enabling real-time monitoring of collision forces, providing crucial sensor data support for active safety systems in smart vehicles. However, existing flexible anti-collision frames for vehicles still suffer from low detection accuracy, a lack of multi-level anti-collision sensing, and an inability to accommodate installation in a variety of vehicle models.

[0003] Therefore, it is very necessary to invent a flexible anti-collision frame for vehicles based on polyaniline sensors. Summary of the Invention

[0004] The purpose of the present invention is to provide a flexible anti-collision outer frame for vehicles based on polyaniline sensors to solve the problems of low detection accuracy, lack of multi-level anti-collision sensor detection, and inability to meet the installation requirements of various vehicle models in existing flexible anti-collision outer frames.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: comprising a first vehicle body mounting frame, a second vehicle body mounting frame, a connecting frame, a stabilizing structure, a fitting arm, an extension arm, a first anti-collision frame, a second anti-collision frame, a flexible sensor and a mounting adhesive block, and a mounting adhesive block is fixedly installed on the inner wall of the first vehicle body mounting frame and bonded to the vehicle body surface, and the stabilizing structure is fixedly installed above the first vehicle body mounting frame; the fitting arm is fixedly installed on the inner ends of the two groups of first vehicle body mounting frames, and the first anti-collision frame is fixedly installed on the inner ends of the two groups of fitting arms, and the flexible sensor is fixedly installed inside the first anti-collision frame; a connecting frame is fixedly installed below the first vehicle body mounting frame, and the second vehicle body mounting frame is fixedly installed at the lower end of the connecting frame, and a mounting adhesive block is fixedly installed on the inner wall of the second vehicle body mounting frame and bonded to the vehicle body surface; an extension arm is fixedly installed on the inner end of the second vehicle body mounting frame, and the second anti-collision frame is fixedly installed on the inner end of the extension arm, and the flexible sensor is fixedly installed inside the second anti-collision frame.

[0006] The stabilizing structure includes a supporting sheet, an adhesive sheet, a connecting sheet, a supporting block and a connecting block, and the connecting block is fixedly mounted above the first vehicle body mounting frame, and the supporting block is fixedly mounted above the connecting block; the supporting sheet is fixedly mounted on the surface of the supporting block through the connecting sheet, and the adhesive sheet is bonded and fixed to the inner wall of the supporting sheet and bonded to the surface of the vehicle headlight housing.

[0007] The first anti-collision frame includes a first substrate, a first sensor mounting groove, a protective shell, and an adhesive strip, wherein the protective shell is fixedly mounted on the surface of the first substrate, with a gap therebetween forming the first sensor mounting groove; the adhesive strip is adhered to the inner surface of the first substrate and is adhesively fixed to the surface of the front side of the vehicle;

[0008] The second anti-collision frame includes a second substrate, a second sensor mounting groove, an anti-collision shell and a support beam, and the anti-collision shell is fixedly installed on the surface of the second substrate, with a gap therebetween to form the second sensor mounting groove; the support beam is fixedly installed on the back of the second substrate.

[0009] The flexible sensor includes a base layer, a sensitive layer, an electrode layer, an etched circuit, a connecting joint and a connecting terminal, and the sensitive layer is installed on the surface of the base layer, and the electrode layer is installed on the surface of the sensitive layer; the etched circuit is arranged on the surface of the sensitive layer and connected to the electrode layer; the connecting joint and the connecting terminal are respectively fixedly installed at both ends of the base layer and connected to the etched circuit.

[0010] The support block and connecting block inside the stabilizing structure are made of aluminum metal blocks, and the support block and connecting block are connected to the first vehicle body mounting frame. The support sheet is made of a resin film; the adhesive sheet is made of a layer of high-transmittance resin adhesive; the support sheet and adhesive sheet can be cut according to the shape of the vehicle headlight and pasted on the surface of the vehicle headlight to provide an upward pulling force for the first vehicle body mounting frame.

[0011] The first anti-collision frame is tightly attached to the surface of the vehicle by the support of the fitting arm, and the first anti-collision frame will not be easily deformed due to the support of the vehicle shell. After being hit, the first anti-collision frame can deform along with the deformation of the vehicle shell; the first anti-collision frame completely wraps the flexible sensor inside it, and the entire first anti-collision frame adopts a soft plastic shell, and the whole has no rigid supporting structure. The first anti-collision frame forms a stable strip structure by bonding it to the vehicle shell.

[0012] The second anti-collision frame is suspended below the front end of the first anti-collision frame through an extended support arm, and the second anti-collision frame is parallel to the first anti-collision frame. The second anti-collision frame completely wraps the flexible sensor inside it; the second anti-collision frame is entirely made of a soft plastic shell and is not supported by the vehicle shell as a whole. Instead, it is supported by a support beam to form a stable strip structure; the support beam is made of a steel sheet that will deform under pressure.

[0013] The base layer inside the flexible sensor is made of a high-temperature resistant polyimide strip, and the base layer can be bent in multiple directions; the sensitive layer is made of a PANI nanofiber layer; the electrode layer is made of sputtered copper foil, and the electrode layer can bend following the bending of the base layer and the sensitive layer; the etched circuit is formed into a wire circuit by photolithography and etching, and its surface is covered with an insulating layer; the connecting joints and connecting terminals can be directly connected in the circuit, and multiple groups of flexible sensors can be lengthened by connecting the connecting joints and connecting terminals.

[0014] Scale-shaped pressure sheets are provided on the outer sides of the first vehicle body mounting frame and the second vehicle body mounting frame, and the scales on the surfaces of the first vehicle body mounting frame and the second vehicle body mounting frame can be pressed toward the vehicle body by airflow when the vehicle is running.

[0015] The flexible sensor can lead out wires from the outlet holes on the back of the first and second vehicle body mounting frames, and connect to the on-board wiring harness of the vehicle headlights for power supply and signal transmission, and connect to the vehicle ECU bus through the vehicle signal processing unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention's stabilizing structure provides rigid support for the first vehicle body mounting frame through connecting blocks and supporting blocks. A cuttable supporting sheet and a high-transparency adhesive sheet are used to tightly fit the vehicle headlights, creating an upward pull to enhance overall stability without affecting the lighting effect. The combined design of aluminum metal blocks and resin films not only suppresses driving vibrations of the first and second anti-collision frames, but also coordinates with the fitted and extended arms to disperse impact forces during a collision, ensuring reliable triggering of the flexible sensor.

[0018] 2. The first anti-collision frame of the present invention is tightly fixed to the surface of the vehicle body by fitting arms, and the flexible sensor inside it can detect collision deformation in real time; the first sensor mounting groove formed by the first substrate and the protective shell provides protection for the sensor, and the adhesive strip ensures that the frame and the vehicle body fit firmly, so that the first anti-collision frame can deform synchronously with the vehicle body and trigger the sensor signal during a low-speed collision. At the same time, the design of the soft plastic material avoids secondary damage to pedestrians or vehicles caused by rigid collisions.

[0019] 3. The second anti-collision frame of the present invention is arranged to be suspended in front of and below the first anti-collision frame by an extended support arm. The second sensor installation groove formed by the second substrate and the anti-collision shell protects the internal flexible sensor. The elastic steel sheet of the support beam provides independent support, so that the anti-collision frame can actively absorb the impact of medium and high-speed collisions and trigger the sensor. The soft plastic shell cooperates with the support structure to ensure deformation sensitivity and maintain overall stability, forming the first set of detection structures at the front of the vehicle.

[0020] 4. The flexible sensor of the present invention senses the deformation of the first and second anti-collision frames in real time through the high-temperature resistant polyimide material of its base layer and the PANI nanofiber of its sensitive layer; the electrode layer and the etched circuit convert the deformation signal into an electrical signal, which is transmitted to the vehicle ECU system via the connecting connector and the connecting terminal, realizing accurate detection of the collision force and providing key data support for the intelligent anti-collision system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the front side of the present invention.

[0022] Figure 2 Schematic diagram of the installation of the flexible sensor of the present invention.

[0023] Figure 3 Schematic diagram of a first vehicle body mounting bracket and a second vehicle body mounting bracket of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the stable structure of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the first anti-collision frame and the second anti-collision frame of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the flexible sensor of the present invention.

[0027] In the picture:

[0028] First vehicle body mounting frame 1, second vehicle body mounting frame 2, connecting frame 3, stabilizing structure 4, fitting arm 5, extending arm 6, first anti-collision frame 7, second anti-collision frame 8, flexible sensor 9, mounting adhesive block 10, supporting sheet 41, adhesive sheet 42, connecting sheet 43, supporting block 44, connecting block 45, first substrate 71, first sensor mounting groove 72, protective shell 73, adhesive strip 74, second substrate 81, second sensor mounting groove 82, anti-collision shell 83, supporting beam 84, base layer 91, sensitive layer 92, electrode layer 93, etched circuit 94, connecting joint 95 and connecting terminal 96. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] As attached Figure 1-6 As shown:

[0031] The present invention provides a flexible anti-collision outer frame for a vehicle based on a polyaniline sensor, comprising a first vehicle body mounting frame 1, a second vehicle body mounting frame 2, a connecting frame 3, a stabilizing structure 4, a fitting arm 5, an extending arm 6, a first anti-collision frame 7, a second anti-collision frame 8, a flexible sensor 9 and an installation adhesive block 10, and the installation adhesive block 10 is fixedly installed on the inner wall of the first vehicle body mounting frame 1 and adhered to the surface of the vehicle body, the stabilizing structure 4 is fixedly installed above the first vehicle body mounting frame 1; the fitting arm 5 is fixedly installed on the inner end of the two groups of first vehicle body mounting frames 1, and the first anti-collision frame 7 is fixedly installed on the inner wall of the first vehicle body mounting frame 1 and adhered to the surface of the vehicle body, and the stabilizing structure 4 is fixedly installed above the first vehicle body mounting frame 1; the fitting arm 5 is fixedly installed on the inner end of the two groups of first vehicle body mounting frames 1, and the first anti-collision frame 7 is fixedly installed on the inner wall of the first vehicle body mounting frame 1 The frame 7 is fixedly mounted on the inner ends of the two sets of fitting arms 5, and a flexible sensor 9 is fixedly mounted inside the first anti-collision frame 7; a connecting frame 3 is fixedly mounted below the first vehicle body mounting frame 1, and a second vehicle body mounting frame 2 is fixedly mounted on the lower end of the connecting frame 3, and a mounting adhesive block 10 is fixedly mounted on the inner wall of the second vehicle body mounting frame 2 and bonded to the vehicle body surface; an extension arm 6 is fixedly mounted on the inner end of the second vehicle body mounting frame 2, and a second anti-collision frame 8 is fixedly mounted on the inner end of the extension arm 6, and a flexible sensor 9 is fixedly mounted inside the second anti-collision frame 8.

[0032] The stabilizing structure 4 includes a supporting piece 41, an adhesive piece 42, a connecting piece 43, a supporting block 44 and a connecting block 45, and the connecting block 45 is fixedly mounted above the first vehicle body mounting frame 1, and the supporting block 44 is fixedly mounted above the connecting block 45; the supporting piece 41 is fixedly mounted on the surface of the supporting block 44 through the connecting piece 43, and the adhesive piece 42 is bonded and fixed to the inner wall of the supporting piece 41 and bonded to the surface of the vehicle headlight housing.

[0033] The first anti-collision frame 7 includes a first substrate 71, a first sensor mounting groove 72, a protective shell 73, and an adhesive strip 74. The protective shell 73 is fixedly mounted on the surface of the first substrate 71, with a gap therebetween forming the first sensor mounting groove 72. The adhesive strip 74 is adhered to the inner surface of the first substrate 71 and is adhesively fixed to the surface on the front side of the vehicle.

[0034] The second anti-collision frame 8 includes a second substrate 81, a second sensor mounting groove 82, an anti-collision shell 83 and a support beam 84, and the anti-collision shell 83 is fixedly mounted on the surface of the second substrate 81, with a gap therebetween to form the second sensor mounting groove 82; the support beam 84 is fixedly mounted on the back of the second substrate 81.

[0035] The flexible sensor 9 includes a base layer 91, a sensitive layer 92, an electrode layer 93, an etched circuit 94, a connecting connector 95 and a connecting terminal 96, and the sensitive layer 92 is installed on the surface of the base layer 91, and the electrode layer 93 is installed on the surface of the sensitive layer 92; the etched circuit 94 is arranged on the surface of the sensitive layer 92 and is connected to the electrode layer 93; the connecting connector 95 and the connecting terminal 96 are respectively fixedly installed at both ends of the base layer 91 and connected to the etched circuit 94.

[0036] The support block 44 and the connecting block 45 inside the stabilizing structure 4 are made of aluminum metal blocks, and the support block 44 and the connecting block 45 are connected to the first vehicle body mounting frame 1. The support sheet 41 is made of a resin film; the adhesive sheet 42 is made of a layer of high-transmittance resin adhesive; the support sheet 41 and the adhesive sheet 42 can be cut according to the shape of the vehicle headlight and pasted on the surface of the vehicle headlight to provide an upward pulling force for the first vehicle body mounting frame 1.

[0037] The first anti-collision frame 7 is tightly attached to the surface of the vehicle by the support of the fitting arm 5, and the first anti-collision frame 7 is not easily deformed by the support of the vehicle shell. After being hit, the first anti-collision frame 7 can deform along with the deformation of the vehicle shell; the first anti-collision frame 7 completely wraps the flexible sensor 9 inside it, and the first anti-collision frame 7 is made of a soft plastic shell as a whole, and there is no rigid supporting structure as a whole. The first anti-collision frame 7 forms a stable strip structure by bonding it to the vehicle shell.

[0038] The second anti-collision frame 8 is suspended below the front end of the first anti-collision frame 7 by the extended support arm 6, and the second anti-collision frame 8 is parallel to the first anti-collision frame 7. The second anti-collision frame 8 completely wraps the flexible sensor 9 inside it; the second anti-collision frame 8 is made of a soft plastic shell as a whole, and is not supported by the vehicle shell as a whole. Instead, it is supported by a support beam 84 to form a stable strip structure; the support beam 84 is made of a steel sheet that will deform under pressure.

[0039] The base layer 91 inside the flexible sensor 9 is made of a high-temperature resistant polyimide strip, and the base layer 91 can be bent in multiple directions; the sensitive layer 92 is made of a PANI nanofiber layer; the electrode layer 93 is made of sputtered copper foil, and the electrode layer 93 can bend along with the bending of the base layer 91 and the sensitive layer 92; the etched circuit 94 is formed into a wire circuit by photolithography and etching, and its surface is covered with an insulating layer; the connecting connector 95 and the connecting terminal 96 can be directly connected in the circuit, and multiple groups of flexible sensors 9 can be lengthened by connecting the connecting connector 95 and the connecting terminal 96.

[0040] Scale-shaped pressure sheets are provided on the outer sides of the first vehicle body mounting frame 1 and the second vehicle body mounting frame 2 , and the scales on the surfaces of the first vehicle body mounting frame 1 and the second vehicle body mounting frame 2 can be pressed toward the vehicle body by airflow when the vehicle is running.

[0041] The flexible sensor 9 can lead out wires from the outlet holes on the back of the first vehicle body mounting frame 1 and the second vehicle body mounting frame 2, and connect to the vehicle wiring harness of the vehicle headlight for power supply and signal transmission, and connect to the vehicle ECU bus through the vehicle signal processing unit.

[0042] This device is a vehicle flexible anti-collision frame system based on polyaniline sensors. Its working principle can be divided into three key links:

[0043] 1. Collision Detection: Multi-level collision detection is achieved through flexible sensors 9 installed in the first and second crash frames 7 and 8. When a vehicle collides, the second crash frame 8 actively absorbs the impact through the elastic deformation of its support beams 84, while the first crash frame 7 deforms with the vehicle. Both deformations cause the sensitive layer 92 of the flexible sensor 9 to undergo a piezoresistive change.

[0044] 2. Signal Transmission: Flexible sensor 9 converts deformation signals into electrical signals via electrode layer 93 and etched circuit 94, which are then transmitted to the vehicle's ECU via connector 95 and terminal 96. Multiple sensors can be connected in series through these interfaces to form a complete detection network.

[0045] 3. Structural Support: The stabilizing structure 4, through the rigid support of support blocks 44 and connecting blocks 45, and the flexible fixation of support sheets 41 and adhesive sheets 42, ensures the secure installation of the entire system. The first and second vehicle body mounting frames 1 and 2 are connected by a skeleton 3 to form an integrated framework, while the fitting arms 5 and extension arms 6 ensure the precise positioning of the crash box.

[0046] Through the ingenious combination of flexible materials and rigid supports, the system not only ensures the sensitivity of collision detection but also the reliability of the overall structure, providing the vehicle with effective collision warning and protection functions.

[0047] To sum up: the flexible anti-collision frame of the vehicle based on the polyaniline sensor solves the problems of low detection accuracy, lack of multi-level anti-collision sensor detection, and inability to meet the installation requirements of various vehicle models by setting a stabilizing structure 4, a first anti-collision frame 7, a second anti-collision frame 8 and a flexible sensor 9.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flexible anti-collision outer frame for a vehicle based on a polyaniline sensor, comprising a first vehicle body mounting frame (1), a second vehicle body mounting frame (2), a connecting frame (3), a stabilizing structure (4), a fitting support arm (5), an extending support arm (6), a first anti-collision frame (7), a second anti-collision frame (8), a flexible sensor (9) and an installation adhesive block (10), wherein the installation adhesive block (10) is fixedly mounted on the inner wall of the first vehicle body mounting frame (1) and is bonded to the surface of the vehicle body, and the stabilizing structure (4) is fixedly mounted above the first vehicle body mounting frame (1); the fitting support arm (5) is fixedly mounted on the inner ends of two groups of first vehicle body mounting frames (1), and the first anti-collision frame ( 7) is fixedly mounted on the inner ends of the two sets of fitting arms (5), and a flexible sensor (9) is fixedly mounted inside the first anti-collision frame (7); a connecting frame (3) is fixedly mounted below the first vehicle body mounting frame (1), and a second vehicle body mounting frame (2) is fixedly mounted on the lower end of the connecting frame (3), and a mounting adhesive block (10) is fixedly mounted on the inner wall of the second vehicle body mounting frame (2) and is bonded to the vehicle body surface; an extension arm (6) is fixedly mounted on the inner end of the second vehicle body mounting frame (2), and a second anti-collision frame (8) is fixedly mounted on the inner end of the extension arm (6), and a flexible sensor (9) is fixedly mounted inside the second anti-collision frame (8).

2. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 1, characterized in that: The stabilizing structure (4) comprises a supporting piece (41), an adhesive piece (42), a connecting piece (43), a supporting block (44) and a connecting block (45), wherein the connecting block (45) is fixedly mounted above the first vehicle body mounting frame (1), and the supporting block (44) is fixedly mounted above the connecting block (45); the supporting piece (41) is fixedly mounted on the surface of the supporting block (44) through the connecting piece (43), and the adhesive piece (42) is adhesively fixed to the inner wall of the supporting piece (41) and is also adhesively bonded to the surface of the vehicle headlight housing.

3. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 1, characterized in that: The first anti-collision frame (7) comprises a first substrate (71), a first sensor mounting groove (72), a protective shell (73) and an adhesive strip (74), wherein the protective shell (73) is fixedly mounted on the surface of the first substrate (71), with a gap therebetween forming the first sensor mounting groove (72); the adhesive strip (74) is bonded to the inner surface of the first substrate (71) and is bonded and fixed to the surface of the front side of the vehicle; The second anti-collision frame (8) comprises a second substrate (81), a second sensor mounting groove (82), an anti-collision shell (83) and a support beam (84), wherein the anti-collision shell (83) is fixedly mounted on the surface of the second substrate (81), with a gap therebetween forming the second sensor mounting groove (82); and the support beam (84) is fixedly mounted on the back of the second substrate (81).

4. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 1, characterized in that: The flexible sensor (9) comprises a base layer (91), a sensitive layer (92), an electrode layer (93), an etching circuit (94), a connecting joint (95) and a connecting terminal (96), wherein the sensitive layer (92) is mounted on the surface of the base layer (91), and the electrode layer (93) is mounted on the surface of the sensitive layer (92); the etching circuit (94) is arranged on the surface of the sensitive layer (92) and is connected to the electrode layer (93); the connecting joint (95) and the connecting terminal (96) are respectively fixedly mounted at both ends of the base layer (91) and are connected at the etching circuit (94).

5. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 2, characterized in that: The support block (44) and the connecting block (45) inside the stabilizing structure (4) are made of aluminum metal blocks, and the support block (44) and the connecting block (45) are connected to the first vehicle body mounting frame (1). The support sheet (41) is made of a resin film; the adhesive sheet (42) is made of a high-transmittance resin adhesive layer; the support sheet (41) and the adhesive sheet (42) can be cut according to the shape of the vehicle headlight and pasted on the surface of the vehicle headlight to provide an upward pulling force for the first vehicle body mounting frame (1).

6. The flexible anti-collision frame for a vehicle based on a polyaniline sensor as claimed in claim 3, characterized in that: The first anti-collision frame (7) is tightly attached to the surface of the vehicle through the support of the fitting support arm (5), and the first anti-collision frame (7) will not be easily deformed due to the support of the vehicle shell. After being hit, the first anti-collision frame (7) can be deformed together with the deformation of the vehicle shell; the first anti-collision frame (7) completely wraps the flexible sensor (9) inside it, and the first anti-collision frame (7) is made of a soft plastic shell as a whole, and has no rigid supporting structure as a whole. The first anti-collision frame (7) forms a stable strip structure through the vehicle shell bonded to it.

7. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 3, characterized in that: The second anti-collision frame (8) is suspended slightly below the front end of the first anti-collision frame (7) through an extended support arm (6), and the second anti-collision frame (8) and the first anti-collision frame (7) are parallel to each other. The second anti-collision frame (8) completely wraps the flexible sensor (9) inside it; the second anti-collision frame (8) is entirely made of a soft plastic shell and is not supported by the vehicle shell. Instead, it is supported by a support beam (84) to form a stable strip structure; the support beam (84) is made of a steel sheet that will deform under pressure.

8. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 4, characterized in that: The base layer (91) inside the flexible sensor (9) is made of a high-temperature resistant polyimide strip, and the base layer (91) can be bent in multiple directions; the sensitive layer (92) is made of a PANI nanofiber layer; the electrode layer (93) is made of sputtered copper foil, and the electrode layer (93) can bend following the bending of the base layer (91) and the sensitive layer (92); the etched circuit (94) is formed into a wire circuit by photolithography and etching, and its surface is covered with an insulating layer; the connecting connector (95) and the connecting terminal (96) can be directly connected in the circuit, and multiple groups of flexible sensors (9) can be lengthened by connecting the connecting connector (95) and the connecting terminal (96).

9. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 1, characterized in that: The outer sides of the first vehicle body mounting frame (1) and the second vehicle body mounting frame (2) are provided with scale-shaped pressure sheets, and the scales on the surfaces of the first vehicle body mounting frame (1) and the second vehicle body mounting frame (2) can be pressed toward the vehicle body by airflow when the vehicle is traveling.

10. The flexible anti-collision frame for a vehicle based on a polyaniline sensor according to claim 8, characterized in that: The flexible sensor (9) can lead out wires from the outlet holes on the back of the first vehicle body mounting frame (1) and the second vehicle body mounting frame (2), and connect to the on-board wiring harness of the vehicle headlight for power supply and signal transmission, and is connected to the vehicle ECU bus through the vehicle signal processing unit.

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