CN117953607B - Picture anti-lost driving video equipment - Google Patents
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Abstract
The invention relates to picture anti-lost driving video equipment which comprises a control module, a cloud computing center, a camera and other components arranged on a vehicle, wherein the control module integrates the functions of data storage, encryption, communication and the like, cooperates with MEC edge nodes and a blockchain network to realize distributed storage and safety management of driving data, adopts multiple measures such as magnetorheological fluid shock absorption, hierarchical heat dissipation, unmanned aerial vehicle emergency data transfer and the like, improves the environmental adaptability and the survivability of data storage, acquires driving videos from multiple angles, generates immersed driving pictures through edge computing and cloud rendering, supports Web/VR access and data intelligent application of users, effectively guarantees the integrity, safety and usability of data, provides credible data support for traffic accident handling, behavior optimization, road condition analysis and the like, and improves traffic safety and efficiency.
Description
Technical Field
The invention relates to picture loss-preventing driving video equipment, in particular to picture loss-preventing driving video equipment applied to the field of driving safety.
Background
With the continuous increase of the quantity of the automobile and the frequent occurrence of traffic accidents, the automobile data recorder has become the standard of the automobile, however, the current automobile data recorder has the defects in the aspects of safety and reliability of data storage.
The specification of Chinese patent CN115909536 discloses a driving video processing method, a vehicle-mounted terminal and a computer storage medium. The method can timely and effectively identify collision risk before the vehicle collides, and store the video file recorded with the collision event into the locking area, so that the problems that the video file is incomplete and the video file is not stored into the locking area when the vehicle collides violently are avoided, the integrity of information record when the emergency occurs is ensured, and the basis is provided for later analysis of the reason of the collision accident.
The specification of Chinese patent CN115471925 discloses a driving video recording method, a driving video recording device and electronic equipment, and relates to the technical field of vehicle driving safety. According to the method, the driving state of the vehicle is monitored in real time, the target video clips at abnormal time are obtained and stored in a target storage mode, so that the effectiveness and accuracy of the vehicle-mounted image acquisition device for acquiring video when the vehicle is abnormal can be increased, the safety of storing the target video clips can be ensured, the cost of generating accident videos is reduced, and the loss to a vehicle owner due to the fact that the target video clips are covered or damaged is avoided.
The design optimizes the acquisition and storage strategy of the driving data through a software algorithm, but has certain limitations on hardware design, such as lack of poor environmental adaptability, insufficient survivability and the like. In addition, with the development of new technologies such as automatic driving and vehicle-road coordination, the automobile data recorder is required to be prevented from losing, and intelligent analysis and comprehensive application of data are also required to be supported.
Disclosure of Invention
Aiming at the prior art, the technical problem to be solved by the invention is to provide a highly reliable, all-weather and easy-maintenance driving data storage scheme, simultaneously support intelligent analysis and comprehensive application of driving data, finally form a vehicle-road-cloud cooperative driving data safety system and provide data infrastructure guarantee for the intelligent transportation and automatic driving times.
In order to solve the problems, the invention provides picture anti-loss driving video equipment, which comprises a control module and a cloud computing center, wherein the outer end of the control module is fixedly connected with a first shell, the outer ends of the control module and the first shell are filled with magnetorheological fluid, the outer end of the first shell is fixedly connected with a coil, the outer end of the coil is fixedly connected with a second shell, an airflow channel is arranged between the coil and the second shell, the bottom end of the second shell is fixedly connected with a plurality of suckers, the outer end of the second shell is fixedly connected with symmetrically arranged cameras, the symmetrically arranged cameras simultaneously acquire high-resolution storage videos and low-resolution preview videos, a partition plate is fixedly connected in the first shell, the partition plate equally divides the space between the first shell and the magnetorheological fluid into two parts, the top end of the first shell is fixedly connected with a convection impeller pump, pipelines at the two ends of the convection impeller pump penetrate through the first shell, the penetrating parts extend to the inner bottom end of the first shell through the space between the first shell, the top end of the impeller pump is fixedly connected with a brushless motor, the top end of the brushless motor is fixedly connected with an adsorption clutch and an aircraft, the bottom of the brushless motor, the top end of the brushless motor is fixedly connected with the adsorption clutch and the aircraft, the outer end of the suction clutch and the aircraft are respectively provided with a symmetrically arranged camera, the outer end of the suction clutch and the air carrier is respectively connected with a control ring and a power supply module through a control network, and a control interface, and a power supply network is connected with the vehicle, and a control module is connected with the vehicle;
The coil generates a magnetic field with corresponding intensity by controlling the current, adjusts the viscosity and damping characteristics of the magnetorheological fluid, provides self-adaptive damping protection for the control module, and prevents picture loss;
the brushless motor drives the convection impeller pump at a lower rotating speed to push magnetorheological fluid to circularly flow between the control module and the first shell, so that heat generated by the control module is taken away, the normal working temperature of the control module is maintained, and the picture loss is prevented;
when the circulation cooling is insufficient to maintain the normal working temperature of the control module, the flying clutch and the propeller are started by increasing the rotating speed of the brushless motor, and the rotating propeller can generate convection emission of heat on the surface of the airflow accelerating equipment, so that the picture is further prevented from being lost;
when the vehicle accident happens, the brushless motor rotates the flight clutch and the propeller at a high speed to generate strong lifting force to drive the whole equipment to take off quickly and separate from the accident vehicle, and meanwhile, the brushless motor moves upwards to enable the air pressure in the sucker to rise, so that the brushless motor is automatically released to be connected with the adsorption of the vehicle, the safety of video equipment is ensured, and the picture loss caused by the accident is prevented.
In the picture anti-loss driving video equipment, through the software and hardware collaborative design, a plurality of innovative technologies such as active protection, fault-tolerant storage, emergency treatment, intelligent analysis and the like are fused, a driving data safety system with end-side-cloud collaboration is constructed, the reliability, environmental adaptability and application value of driving data storage are comprehensively improved, the requirements of traffic accident responsibility identification, insurance claim settlement, driving behavior optimization, road design improvement and the like can be effectively supported, and key data infrastructure guarantee is provided for intelligent network-connected automobiles and intelligent traffic development.
As a further improvement of the application, the power shaft of the brushless motor penetrates through the adsorption clutch and the flying clutch in the upper direction, the outer end of the power shaft of the brushless motor is fixedly connected with a plurality of sliding bars, the sliding bars are respectively in sliding connection with the adsorption clutch and the flying clutch, the adsorption clutch and the flying clutch respectively comprise a plurality of sliding blocks in sliding connection with the sliding bars, and the sliding bars are distributed around the circumference array of the axis of the brushless motor.
As a still further improvement of the application, the elastic rings are clamped at the ends of the adsorption clutch and the flying clutch, which are close to the flying ring, and the stiffness coefficient of the elastic rings clamped with the adsorption clutch is smaller than that of the elastic rings clamped with the flying clutch.
As a further improvement of the application, the bottom end of the adsorption clutch is fixedly connected with an adsorption impeller pump, an air inlet pipe of the adsorption impeller pump is fixedly connected with an adsorption pipe, one end of the adsorption pipe, which is far away from the adsorption impeller pump, is communicated with an adsorption ring, one end of the adsorption impeller pump, which is far away from the adsorption pipe, is fixedly connected with a one-way valve, and the direction of the one-way valve is the direction far away from the adsorption impeller pump.
As a further improvement of the application, the part of the adsorption tube positioned at the upper side of the brushless motor is fixedly connected with a sleeve, a decompression piston is connected in a sliding way in the sleeve, one end of the decompression piston, which is far away from the adsorption tube, is fixedly connected with the top end of the brushless motor, and a battery is fixedly connected on the control module.
In addition to the further improvement of the application, the control module comprises a processor, a memory, a communication module and an encryption module, and reliable transmission of data is realized through erasure coding technology and block uploading.
As a further improved supplement of the application, the MEC edge node is provided with a server cluster, and the data storage and calculation efficiency is improved through the technologies of data caching, parallel processing and hierarchical management; the block chain network consists of a plurality of nodes, and adopts an optimized consensus mechanism to realize the functions of data uplink, storage certification and authority management and control; the cloud computing center has the capabilities of high-performance computing, mass storage, big data processing and intelligent analysis, and provides computing power support for driving data application.
As a further improvement of the application, the MEC edge node adopts a multi-node cluster architecture, and supports elastic capacity expansion and load balancing; heterogeneous hardware is provided, so that flexible acceleration capability is provided; through the high-speed internet, the data throughput is ensured; the system has the functions of data management, sharing exchange and federal learning;
the block chain network adopts a consensus mechanism optimized for the Internet of things, and both safety and efficiency are considered; the system has a lightweight data structure and supports high concurrency uplink; the security and confidential calculation of the node are ensured through password hardware and trusted environment; the intelligent contract supports the functions of storage certification, authority management and privacy protection;
The computing clusters of the cloud computing center adopt heterogeneous fusion architecture, and support memory computing and nonvolatile storage; the distributed storage adopts erasure codes, multiple copies and data reliability technology of layered archiving; the large data platform is preset with various data processing components, and the PB level data acquisition, storage, calculation and visualization are supported; the intelligent video analysis platform realizes end-to-end analysis application through a deep learning frame and a preset model;
The control module judges the collision severity degree through multi-sensor fusion and has the flight control capability of inertial navigation, visual obstacle avoidance and indoor positioning; the system comprises an airborne edge computing platform, wherein the local storage of data and the extraction of abstracts are realized; and a multimode communication link is adopted to reliably connect with the edge node.
Comprises the following steps of;
S1, adsorption installation;
s2, driving video and cloud rendering;
S3, circularly cooling;
S4, self-adaptive active damping;
s5, air cooling and heat dissipation;
S6, emergency take-off;
S7, aerial video recording.
In summary, the application has the following beneficial effects:
1. The reliability and the safety of driving data storage are improved; the equipment adopts various data storage and protection mechanisms, such as an encryption module, a memory and erasure code technology which are built in a control module, data caching and layered management of MEC edge nodes, data uplink and authority management and control of a blockchain network, mass distributed storage and disaster recovery backup of a cloud computing center and the like, and the measures ensure the integrity, confidentiality and availability of driving data from different layers, and effectively reduce the risks of data loss and damage.
2. Enhancing the environmental adaptability and viability of the device; the active damping system formed by the magnetorheological fluid and the coil can monitor the vibration of the vehicle in real time, adjust the damping characteristic according to the requirement and provide self-adaptive damping protection for the control module; meanwhile, the convection impeller pump and the propeller form a heat management scheme combining circulating cooling and air cooling heat dissipation, so that the working temperature of the equipment can be continuously and effectively controlled; under extreme conditions, the propeller can be driven at high speed by the brushless motor, so that emergency take-off and separation from accident sites are realized, the reliability of equipment is improved, the equipment can adapt to complex and changeable vehicle environments, and the service life is prolonged to the maximum extent.
3. Intelligent acquisition and application of driving data are realized; the equipment is provided with a plurality of cameras for collecting driving videos with different visual angles in real time, video frame metadata are extracted through cooperative processing of MEC edge nodes and a cloud computing center, immersive driving pictures are rendered and generated, a user can conveniently access historical driving data through Web/VR and other modes to obtain immersive playback experience, meanwhile, mass driving data provides data support for accident analysis, driving behavior optimization, traffic environment management and the like, and the reliable sharing and transaction of data can be realized by combining a blockchain technology, so that the data value is stimulated.
4. Constructing a driving data security system of the vehicle-road cooperation; the device has fused a plurality of levels such as vehicle-mounted terminal, MEC edge node, blockchain network and cloud computing center, formed end Bian Yun collaborative driving data processing architecture, control module fuses perception vehicle state through many sensors, the local preliminary treatment of data is realized to the machine-mounted edge computing platform, rethread multimode communication link is reliably connected with road edge node, assemble the high in the clouds and carry out big data analysis and intelligent decision finally, hierarchical distributed system design, while guaranteeing data security is controllable, also can make full use of the calculation memory resource of vehicle and infrastructure, support intelligent network allies oneself with the development of car and intelligent transportation.
5. The traffic accident handling efficiency and fairness are improved; at present, traffic accident responsibility identification and insurance claim settlement often face the dilemma of insufficient evidence or single visual angle, the device completely records key information before and after accidents occur through spatial three-dimensional and time continuous driving data acquisition, and adopts a blockchain technology to ensure the authenticity and credibility of the data, thereby providing decision basis for police station law institutions, insurance companies and the like, improving the scientificity and objectivity of accident responsibility determination, maintaining the legal rights and interests of traffic participants, and promoting construction of safer, more efficient and harmonious traffic environments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a side view of the present application;
FIG. 3 is a cross-sectional view A-A of the present application;
FIG. 4 is a B-B cross-sectional view of the present application;
FIG. 5 is an enlarged view of the application at C;
FIG. 6 is an overall exploded view of the present application;
FIG. 7 is a partial exploded view of the present application;
FIG. 8 is a partial exploded view of the present application;
FIG. 9 is a partial exploded view III of the present application;
FIG. 10 is a partial exploded view of the present application;
Fig. 11 is a schematic view of the appearance structure of the present application.
The reference numerals in the figures illustrate:
1. a control module; 2. a first housing; 3. magnetorheological fluid; 4. a coil; 5. a second housing; 6. a suction cup; 7. a camera; 8. a convection impeller pump; 9. a brushless motor; 10. an adsorption clutch; 11. a flight clutch; 12. an adsorption ring; 13. a flight ring; 14. a propeller; 15. a slide bar; 16. a slide block; 17. an elastic ring; 18. an adsorption impeller pump; 19. an adsorption tube; 20. and (3) a decompression piston.
Detailed Description
Three embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
Fig. 1-11 illustrate.
The utility model provides a picture prevents losing driving video recording equipment, including control module 1 and cloud center, control module 1 outer end fixedly connected with first casing 2, control module 1 and first casing 2 outer end are filled with magnetorheological fluid 3, first casing 2 outer end fixedly connected with coil 4, coil 4 outer end fixedly connected with second casing 5, set up airflow channel between coil 4 and the second casing 5, second casing 5 bottom fixedly connected with a plurality of sucking discs 6, second casing 5 outer end fixedly connected with symmetrically-arranged camera 7, symmetrically-arranged camera 7 gathers high resolution storage video and low resolution preview video simultaneously, fixedly connected with baffle in the first casing 2, and the space equipartition between first casing 2 and the magnetorheological fluid 3 is two parts by the baffle, first casing 2 top fixedly connected with impeller pump 8, impeller pipe at impeller 8 both ends all runs through first casing 2, and the run-through part extends to first casing 2 inside bottom through the space between 2 and the magnetorheological fluid 3, brushless motor 8 top fixedly connected with 9, 9 and clutch 10 and clutch collar 10 are equipped with brushless motor, clutch 14 and electric motor system 13 are equipped with, motor vehicle network connection 13 and electric power system are connected with motor 13, vehicle network interface 13 is connected with DC motor, vehicle interface 13 is connected with DC motor network, vehicle interface 13 is equipped with 13 through control module, vehicle interface 13, and DC interface 13 is connected with DC motor network interface 13.
The coil 4 generates a magnetic field with corresponding intensity by controlling the current, adjusts the viscosity and damping characteristics of the magnetorheological fluid 3, provides self-adaptive damping protection for the control module 1, and prevents picture loss;
the brushless motor 9 drives the convection impeller pump 8 at a lower rotating speed to push the magnetorheological fluid 3 to circularly flow between the control module 1 and the first shell 2, so that heat generated by the control module 1 is taken away, the normal working temperature of the control module 1 is maintained, and the picture loss is prevented;
When the circulation cooling is insufficient to maintain the normal working temperature of the control module 1, the flying clutch 11 and the propeller 14 are started by increasing the rotating speed of the brushless motor 9, and the rotating propeller 14 can generate convection emission of heat on the surface of the airflow accelerating equipment, so that the picture is further prevented from being lost;
When the accident happens to the vehicle, the brushless motor 9 rotates the flight clutch 11 and the propeller 14 at a high speed to generate a strong lifting force to drive the whole equipment to take off quickly so as to separate from the accident vehicle, and meanwhile, the brushless motor 9 moves upwards to enable the air pressure in the sucker 6 to rise, and the brushless motor is automatically released to be connected with the adsorption of the vehicle, so that the safety of video equipment is ensured, and the picture loss caused by the accident is prevented.
In the picture anti-loss driving video equipment, through the software and hardware collaborative design, a plurality of innovative technologies such as active protection, fault-tolerant storage, emergency treatment, intelligent analysis and the like are fused, a driving data safety system with end-side-cloud collaboration is constructed, the reliability, environmental adaptability and application value of driving data storage are comprehensively improved, the requirements of traffic accident responsibility identification, insurance claim settlement, driving behavior optimization, road design improvement and the like can be effectively supported, and key data infrastructure guarantee is provided for intelligent network-connected automobiles and intelligent traffic development.
The control module 1 is used as a core control unit of the whole system and is responsible for coordinating the work of all the components, realizing the functions of data storage, calculation, uplink, management, communication and the like, and ensuring the stable and reliable operation of the system.
The first housing 2 provides a closed space for accommodating the control module 1 and the magnetorheological fluid 3, and plays a role of protection and support, and is also an important part of heat dissipation and shock absorption.
The magnetorheological fluid 3 can quickly change the viscosity and the shearing strength under the action of a magnetic field, is filled between the control module 1 and the first shell 2, is used for actively absorbing and radiating heat, and improves the shock resistance and the temperature control capability of the system.
The coil 4 is used for generating a control magnetic field, changing the performance of the magnetorheological fluid 3, and precisely controlling the shearing strength of the magnetorheological fluid 3 can be realized by adjusting the current of the coil 4, so that intelligent shock absorption protection is realized.
The second casing 5 serves as a casing of the whole device, plays a role in protecting internal elements and beautifying appearance, and an air flow channel is formed between the second casing 5 and the coil 4, so that heat dissipation in the device is facilitated.
The sucking disc 6 fixed connection is in second casing 5 bottom for firmly adsorb equipment at the vehicle surface, adopt sucking disc fixed mode, simple to operate, and can not cause the damage to the vehicle.
The cameras 7 are symmetrically arranged on the outer surface of the second shell 5 and used for collecting image information of the front and rear sides of the vehicle, and meanwhile, high-resolution storage videos and low-resolution preview videos are collected, so that storage quality and transmission efficiency are both considered.
The convection impeller pump 8 is fixedly connected to the top of the first shell 2 and is used for driving the magnetorheological fluid 3 to form circulation flow in the first shell 2, so that conduction and dissipation of internal heat are accelerated, and the heat dissipation effect of the control module 1 is improved.
The brushless motor 9 provides power for the convection impeller pump 8, the adsorption clutch 10 and the flight clutch 11, is a core driving component of the equipment, and has the advantages of high control precision, good reliability, low noise and the like by adopting the brushless motor 9.
The adsorption clutch 10 is connected with the brushless motor 9 and the adsorption ring 12 and is used for controlling the adsorption and release of equipment, and the adsorption and separation of the sucker 6 can be realized rapidly through the forward and reverse rotation of the brushless motor 9.
The flying clutch 11 is connected with the brushless motor 9 and the flying ring 13 and is used for controlling the operation of the propeller 14, and in an emergency, the flying clutch 11 can drive the propeller 14 to rotate at a high speed so that the device is quickly separated from the vehicle.
The adsorption ring 12 is matched with the adsorption clutch 10 and used for transmitting adsorption torque and controlling the adsorption state of the sucker 6.
The flight ring 13 cooperates with the flight clutch 11 for transmitting a rotational torque to drive the propeller 14 in rotation.
The propeller 14 provides lift and thrust, can drive equipment and take off fast under emergency, breaks away from accident vehicle, avoids secondary damage, protects accident data, realizes multiple functions such as reliable driving data storage, efficient temperature control, intelligent shock attenuation protection and emergency break away, promotes the data security and the viability of vehicle event data recorder comprehensively, furthest ensures the integrality of accident evidence, and provides powerful support for accident responsibility identification and claim settlement.
Second embodiment:
Fig. 1-11 illustrate.
The power shaft of the brushless motor 9 penetrates through the adsorption clutch 10 and the flight clutch 11 in the axial direction, the outer end of the power shaft of the brushless motor 9 is fixedly connected with a plurality of sliding rods 15, and the sliding rods 15 are respectively in sliding connection with the adsorption clutch 10 and the flight clutch 11.
The suction clutch 10 and the flying clutch 11 each comprise a plurality of sliding blocks 16 slidably connected to sliding bars 15, the plurality of sliding bars 15 being circumferentially arrayed around the axis of the brushless motor 9.
The elastic rings 17 are clamped at the ends, close to the flying rings 13, of the adsorption clutch 10 and the flying clutch 11, and the stiffness coefficient of the elastic rings 17 clamped with the adsorption clutch 10 is smaller than that of the elastic rings 17 clamped with the flying clutch 11.
The bottom end of the adsorption clutch 10 is fixedly connected with an adsorption impeller pump 18, an adsorption pipe 19 is fixedly connected to an air inlet pipe of the adsorption impeller pump 18, one end, away from the adsorption impeller pump 18, of the adsorption pipe 19 is communicated with the adsorption ring 12, one end, away from the adsorption pipe 19, of the adsorption impeller pump 18 is fixedly connected with a one-way valve, and the direction of the one-way valve is the direction away from the adsorption impeller pump 18.
The adsorption tube 19 is located the upper portion fixedly connected with sleeve of brushless motor 9, and the sliding connection has decompression piston 20 in the sleeve, and decompression piston 20 keeps away from adsorption tube 19 one end and brushless motor 9 top fixed connection, fixedly connected with battery on the control module 1.
The control module 1 comprises a processor, a memory, a communication module and an encryption module, and realizes reliable transmission of data through erasure coding technology and block uploading.
The MEC edge node is provided with a server cluster, and the data storage and calculation efficiency is improved through the technologies of data caching, parallel processing and hierarchical management; the block chain network consists of a plurality of nodes, and adopts an optimized consensus mechanism to realize the functions of data uplink, storage certification and authority management and control; the cloud computing center has the capabilities of high-performance computing, mass storage, big data processing and intelligent analysis, and provides computing power support for driving data application.
The MEC edge node adopts a multi-node cluster architecture to support elastic capacity expansion and load balancing; heterogeneous hardware is provided, so that flexible acceleration capability is provided; through the high-speed internet, the data throughput is ensured; the system has the functions of data management, sharing exchange and networking learning;
the block chain network adopts a consensus mechanism optimized for the Internet of things, and both safety and efficiency are considered; the system has a lightweight data structure and supports high concurrency uplink; the security and confidential calculation of the node are ensured through password hardware and trusted environment; the intelligent contract supports the functions of storage certification, authority management and privacy protection;
The computing clusters of the cloud computing center adopt heterogeneous fusion architecture, and support memory computing and nonvolatile storage; the distributed storage adopts erasure codes, multiple copies and data reliability technology of layered archiving; the large data platform is preset with various data processing components, and the PB level data acquisition, storage, calculation and visualization are supported; the intelligent video analysis platform realizes end-to-end analysis application through a deep learning frame and a preset model;
the control module 1 judges the collision severity degree through multi-sensor fusion and has the flight control capability of inertial navigation, visual obstacle avoidance and indoor positioning; the system comprises an airborne edge computing platform, wherein the local storage of data and the extraction of abstracts are realized; and a multimode communication link is adopted to reliably connect with the edge node.
The slide bars 15 are fixedly connected to a power shaft of the brushless motor 9 and are used for transmitting power and realizing axial movement of the clutch, and the slide bars 15 are distributed in a circumferential array around the axis of the brushless motor 9, so that balanced support and transmission can be provided, and the stability of the movement of the clutch is ensured.
The sliding blocks 16 are respectively arranged on the adsorption clutch 10 and the flying clutch 11 and are in sliding connection with the sliding bars 15, and when the power shaft of the brushless motor 9 rotates, the sliding bars 15 and the sliding blocks 16 can slide mutually to drive the clutch to move along the axial direction so as to realize the switching of different modes.
The elastic ring 17 is clamped at one end of the adsorption clutch 10 and one end of the flight clutch 11, which is close to the flight ring 13, and the elastic ring 17 provides axial elastic force, so that the clutch can be kept at an initial position when no power exists, the stiffness coefficient of the elastic ring 17 on the adsorption clutch 10 is smaller, and the adsorption function can be realized conveniently when the clutch rotates at a low speed; the stiffness coefficient of the elastic ring 17 on the flying clutch 11 is larger, so that the clutch can be reliably meshed with the flying ring 13 during high-speed rotation, and enough power is transmitted.
The suction impeller pump 18 is fixedly connected to the bottom end of the suction clutch 10 and is used for generating vacuum suction, and when the suction clutch 10 rotates, air in the suction cup 6 is pumped out through the suction impeller pump 18, so that the equipment is firmly sucked on the surface of a vehicle body.
One end of the adsorption tube 19 is communicated with the adsorption ring 12, the other end of the adsorption tube is connected with an air inlet pipe of the adsorption impeller pump 18, and the adsorption tube 19 is used for conducting suction force and transmitting vacuum degree generated by the adsorption impeller pump 18 to the sucker 6.
The check valve is connected with the air outlet of the adsorption impeller pump 18, the conduction direction is the direction far away from the adsorption impeller pump 18, the check valve can prevent the air flow from flowing backwards, the adsorption state is maintained, and meanwhile, the pressure can be quickly released when the release is needed.
The decompression piston 20 is slidably connected in the sleeve on the upper side of the adsorption tube 19, one end of the decompression piston 20 is fixedly connected with the top end of the brushless motor 9, the decompression piston 20 is used for quickly releasing vacuum when equipment is separated from a vehicle body, the sucker 6 is separated from the vehicle body, and when the brushless motor 9 moves upwards, the decompression piston 20 moves upwards along with the upward movement, so that external air is introduced into the adsorption tube 19, and the vacuum state is destroyed.
The processor, the memory, the communication module and the encryption module of the control module 1 work cooperatively to realize the functions of data acquisition, storage, uploading and encryption, and the erasure code technology and the block uploading are adopted to improve the reliability and the efficiency of data transmission.
The MEC edge node improves the data storage and calculation efficiency, reduces the transmission delay and realizes real-time data processing and analysis through the technologies of server cluster and data caching, parallel processing and hierarchical management.
The block chain network is composed of a plurality of nodes, an optimized consensus mechanism such as PoS, DPoS and the like is adopted, the decentralization and the safety are ensured, the consensus efficiency is improved, and the credibility and the privacy of the data are ensured through the functions of data uplink, storage certification and authority management and control.
The cloud computing center provides high-performance computing, mass storage, big data processing and intelligent analysis services, provides powerful computing power and storage support for driving data application, and realizes deep mining and utilization of data.
The sensor, navigation, obstacle avoidance and positioning capabilities of the control module 1 accurately judge the severity of collision through multi-sensor fusion, and the control equipment is separated from dangerous situations in time. The device is provided with an inertial navigation, visual obstacle avoidance and indoor positioning module, so that the flight safety of the device and the reliable acquisition of data are ensured.
The airborne edge computing platform realizes local storage, compression, encryption and abstract extraction of data at the equipment end, reduces data transmission quantity, reduces time delay and bandwidth occupation, is reliably connected with MEC edge nodes through a multimode communication link, builds an end-edge cooperative computing architecture, comprehensively improves the safety, reliability and application value of driving data, and provides a solid data base for intelligent traffic and automatic driving.
Third embodiment:
Fig. 1-11 illustrate.
Comprises the following steps of;
S1, adsorption installation;
When the sucking disc 6 is used, the sucking disc 6 is pressed to a required installation position, such as the top of an automobile, and then is electrically connected with the automobile through a hot plug interface, and then the brushless motor 9 is controlled to rotate at a first rotation speed through the control module 1, at the moment, under the action of the brushless motor 9, the adsorption clutch 10 is in contact with the adsorption ring 12 and drives the adsorption ring 12 to rotate, and when the adsorption ring 12 rotates, the adsorption impeller pump 18 is driven to rotate so as to suck the gas in the sucking disc 6 through the adsorption tube 19, so that the sucking disc 6 is firmly adsorbed to the installation position.
S2, driving video and cloud rendering;
The low-resolution preview video stream uploaded in real time through the cameras 7 extracts key metadata from video frames, and the key metadata are overlaid and rendered to the high-precision magnetorheological fluid 3D road model to generate an immersive first-person driving picture, and the immersive first-person driving picture is stored in association with driving data to support Web/VR access of users and immersive playback of driving history pictures, so that picture loss can be better prevented.
S3, circularly cooling;
During normal use, the brushless motor 9 is controlled by the control module 1 to rotate at a second rotation speed, the rotation speed of the second rotation speed is smaller than that of the first rotation speed, at the moment, the brushless motor 9 drives the convection impeller pump 8 to rotate, and the convection impeller pump 8 pushes the magnetorheological fluid 3 to circularly flow in the space between the control module 1 and the first shell 2 during rotation, so that the control module 1 is continuously cooled, and the control module 1 is at a proper working temperature, so that the picture loss can be better prevented.
S4, self-adaptive active damping;
In the use, vibration and moving states are continuously detected through the control module 1, meanwhile, the vehicle state is monitored in real time, a vibration threshold value is preset on the control module 1, when the vibration state is detected to reach the threshold value, the control module 1 starts the coil 4 and adjusts the current of the coil 4 according to requirements so as to generate a magnetic field with the corresponding size, and the state of the magnetorheological fluid 3 is adjusted by the magnetic field, so that the control module 1 is damped and buffered, the possibility that the control module 1 is damaged is reduced, and the picture loss can be better prevented.
S5, air cooling and heat dissipation;
when the control module 1 is insufficient for heat dissipation only through circulation cooling, the brushless motor 9 is controlled to rotate at the third rotation speed through the control module 1, at the moment, the flight clutch 11 is in contact with the flight ring 13, the flight ring 13 drives the propeller 14 connected with the flight clutch to rotate, at the moment, the propeller 14 is utilized for air cooling and heat dissipation of equipment, so that the control module 1 is not easy to overheat, and therefore the picture loss can be better prevented.
S6, emergency take-off;
In the use, when detecting that the vehicle takes place serious accident, rotate with fourth rotational speed through control module 1 control brushless motor 9, flight clutch 11 and flight ring 13 contact this moment, flight ring 13 drives the screw 14 rotation that links to each other with it, drive brushless motor 9 upward movement when screw 14 high-speed rotates, decompression piston 20 upward movement is promoted when brushless motor 9 upward movement, brushless motor 9 pushes away the cover that is located the brushless motor top simultaneously, gaseous getting into adsorption tube 19 from decompression piston 20 this moment, thereby lead to sucking disc 6 to remove the absorption with mounted position, fourth rotational speed is greater than the third rotational speed, afterwards screw 14 drives whole equipment take off and breaks away from the vehicle, reduce control module 1 receive the possibility of impact damage, thereby prevent that the picture from losing that can be better.
S7, aerial video recording;
and after the equipment is separated from the vehicle, controlling the camera to continuously record the video, and uploading video data through the wireless communication module.
The device can be conveniently and rapidly mounted on the top of the vehicle through the sucker 6 in the adsorption mounting process, a complex fixing device is not needed, the mounting process is greatly simplified, the brushless motor 9 is utilized to drive the cooperative work of the adsorption clutch 10, the adsorption ring 12 and the adsorption impeller pump 18, the adsorption process can be automatically completed, the manual operation is reduced, the adsorption force can be accurately controlled by controlling the rotating speed of the brushless motor 9, and the stability and reliability of the device in the vehicle driving process are ensured.
The method has the advantages that traffic conditions around vehicles can be comprehensively recorded by collecting the driving videos at different angles through the cameras 7 in the driving video recording and cloud rendering processes, more evidences are provided for accident analysis, low-resolution preview video streams are uploaded, data transmission quantity can be reduced, pressure on a vehicle-mounted network is reduced, meanwhile, the real-time monitoring requirement is met, key metadata of video frames are extracted, the key metadata are overlaid and rendered on a high-precision 3D road model, an immersive first-person driving picture is generated, more visual and comprehensive driving information can be provided, richer data support is provided for accident recovery, driving behavior analysis and the like, the Web/VR access and playback are supported, convenience is brought to users to check driving histories at any time, and convenience is provided for remote accident analysis, insurance claims and the like.
In the circulation cooling process, the brushless motor 9 is controlled to drive the convection impeller pump 8 at a lower rotating speed, so that the magnetorheological fluid 3 can be continuously pushed to circulate between the control module 1 and the first shell 2, heat generated by the control module is effectively taken away, the magnetorheological fluid 3 has excellent heat conducting property, heat can be quickly and uniformly absorbed and conducted, the heat radiating efficiency is improved, the control module 1 can be kept at a proper working temperature for a long time through circulation cooling, and data loss or equipment damage caused by overheating is prevented.
In the self-adaptive active damping process, the control module 1 continuously detects vibration and moving states, monitors the vehicle states in real time, can timely find abnormal vibration and impact, automatically judges whether to start active damping measures according to a preset vibration threshold value, realizes self-adaptive protection, generates a magnetic field with corresponding strength by controlling the current of the coil 4, can accurately adjust the viscosity and damping characteristics of the magnetorheological fluid 3, realizes optimal damping effect, enables the magnetorheological fluid 3 to respond to magnetic field changes in millisecond level, realizes real-time and continuous damping adjustment, effectively buffers impact and vibration to influence on the control module 1, and improves equipment reliability.
When the circulation cooling is insufficient to maintain the normal working temperature of the control module 1 in the air cooling radiating process, the rotation speed of the brushless motor 9 is increased, the flying clutch 11 and the propeller 14 are started, forced air cooling radiating can be realized rapidly, the rotating propeller 14 can generate strong air flow, the convection radiating of the heat on the surface of equipment is accelerated, the radiating efficiency is improved, and an omnibearing and three-dimensional thermal management system can be constructed by combining the circulation cooling and the air cooling radiating, so that the control module 1 can maintain the optimal working temperature under various working conditions.
In the emergency take-off process, the state of the vehicle is detected through the control module 1, such as serious accidents like collision and fire, whether an emergency take-off mechanism needs to be started or not can be automatically judged, the brushless motor 9 rotates the flight clutch 11 and the propeller 14 at high speed to generate strong lifting force to drive the whole equipment to take off rapidly, and the accident vehicle is broken away, meanwhile, the brushless motor 9 moves upwards to push the decompression piston 20 to move upwards, so that the air pressure in the sucker 6 is increased, the adsorption connection with the vehicle is automatically released, the safety and reliability of the take-off process are ensured, the emergency take-off can be carried away from the equipment at the first time of accident occurrence, the secondary injury caused by vehicle damage is avoided, the accident scene data is protected to the maximum extent, and the data survival rate is improved.
After equipment is separated from a vehicle in the air video recording process, the camera 7 can continue to work, an accident scene picture is recorded in the air, global visual angles and information are obtained, air video recording data are uploaded to the cloud end in real time through the wireless communication module, safe storage of the data is ensured, data loss caused by local storage damage is prevented, the air video recording can be used as a supplement of ground vehicle-mounted video, more objective and comprehensive evidence materials are provided for accident analysis and responsibility identification, and references are provided for traffic management departments to optimize road design and improve traffic environment.
From the normal state of circulation cooling and self-adaptive damping to the extreme emergency separation and air video recording, each link pertinently improves the survivability of the equipment and the integrity of data, and combines active safety, passive safety and information safety.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (10)
1. A picture prevents losing driving video recording equipment, its characterized in that: including control module (1) and cloud center, control module (1) outer end fixedly connected with first casing (2), control module (1) and first casing (2) outer end are filled with magnetorheological fluid (3), first casing (2) outer end fixedly connected with coil (4), coil (4) outer end fixedly connected with second casing (5), air current passageway has been seted up between coil (4) and second casing (5), second casing (5) bottom fixedly connected with a plurality of sucking discs (6), second casing (5) outer end fixedly connected with symmetry setting camera (7), symmetry setting camera (7) gather high resolution storage video and low resolution preview video simultaneously, fixedly connected with baffle in first casing (2), and the space between first casing (2) and magnetorheological fluid (3) is divided equally into two parts by the baffle, first casing (2) top fixedly connected with impeller pump (8), impeller pump (8) and pipeline (2) inner portion through the first casing (2) and the inside of impeller pump (2) and the inside extension of a part (9) that runs through, impeller pump (2) bottom fixedly connected with one end of impeller pump (2), the brushless motor (9) is fixedly connected with an adsorption clutch (10) and a flight clutch (11), the outer ends of the adsorption clutch (10) and the flight clutch (11) are respectively provided with an adsorption ring (12) and a flight ring (13), the top end of the flight ring (13) is fixedly connected with a propeller (14), the coil (4), the camera (7) and the brushless motor (9) are electrically connected with a control module (1), the control module (1) is connected with a vehicle electronic system through a communication interface and acquires vehicle power supply through a power interface, and the control module (1) comprises MEC edge nodes and a blockchain network;
The coil (4) generates a magnetic field with corresponding intensity by controlling the current, adjusts the viscosity and damping characteristics of the magnetorheological fluid (3), provides self-adaptive damping protection for the control module (1), and prevents picture loss;
The brushless motor (9) drives the convection impeller pump (8) at a lower rotating speed to push the magnetorheological fluid (3) to circularly flow between the control module (1) and the first shell (2), so that heat generated by the control module (1) is taken away, the normal working temperature of the control module (1) is maintained, and the picture loss is prevented;
When the circulation cooling is insufficient to maintain the normal working temperature of the control module (1), the rotating propeller (14) can generate convection emission of heat on the surface of the airflow accelerating equipment by increasing the rotating speed of the brushless motor (9) and starting the flying clutch (11) and the propeller (14), so that the picture is further prevented from being lost;
When the accident happens to the vehicle, the brushless motor (9) rotates the flying clutch (11) and the propeller (14) at a high speed to generate strong lifting force to drive the whole equipment to take off quickly, so that the accident vehicle is separated, and meanwhile, the brushless motor (9) moves upwards to enable the air pressure in the sucker (6) to rise, and the brushless motor is automatically released to be connected with the adsorption of the vehicle, so that the safety of video equipment is ensured, and the picture loss caused by the accident is prevented.
2. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the power shaft of the brushless motor (9) upwards penetrates through the adsorption clutch (10) and the flight clutch (11), the outer end of the power shaft of the brushless motor (9) is fixedly connected with a plurality of sliding rods (15), and the sliding rods (15) are respectively in sliding connection with the adsorption clutch (10) and the flight clutch (11).
3. The picture loss prevention driving video recording apparatus according to claim 2, wherein: the adsorption clutch (10) and the flight clutch (11) comprise a plurality of sliding blocks (16) which are in sliding connection with sliding rods (15), and the sliding rods (15) are distributed in a circumferential array around the axis of the brushless motor (9).
4. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the device is characterized in that the elastic rings (17) are clamped at one ends, close to the flying rings (13), of the adsorption clutch (10) and the flying clutch (11), and the stiffness coefficient of the elastic rings (17) clamped with the adsorption clutch (10) is smaller than that of the elastic rings (17) clamped with the flying clutch (11).
5. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the adsorption clutch is characterized in that an adsorption impeller pump (18) is fixedly connected to the bottom end of the adsorption clutch (10), an adsorption pipe (19) is fixedly connected to an air inlet pipe of the adsorption impeller pump (18), one end, away from the adsorption impeller pump (18), of the adsorption pipe (19) is communicated with the adsorption ring (12), a one-way valve is fixedly connected to one end, away from the adsorption pipe (19), of the adsorption impeller pump (18), and the direction of conduction of the one-way valve is the direction away from the adsorption impeller pump (18).
6. The picture loss prevention driving video recording apparatus according to claim 5, wherein: the adsorption tube (19) is located a sleeve fixedly connected with the upper side portion of the brushless motor (9), a decompression piston (20) is connected in a sliding mode in the sleeve, one end, away from the adsorption tube (19), of the decompression piston (20) is fixedly connected with the top end of the brushless motor (9), and a battery is fixedly connected to the control module (1).
7. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the control module (1) comprises a processor, a memory, a communication module and an encryption module, and reliable transmission of data is realized through erasure coding technology and block uploading.
8. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the MEC edge node is provided with a server cluster, and the data storage and calculation efficiency is improved through the technologies of data caching, parallel processing and hierarchical management; the block chain network consists of a plurality of nodes, and adopts an optimized consensus mechanism to realize the functions of data uplink, storage certification and authority management and control; the cloud computing center has the capabilities of high-performance computing, mass storage, big data processing and intelligent analysis, and provides computing power support for driving data application.
9. The picture loss prevention driving video recording apparatus according to claim 1, wherein: the MEC edge node adopts a multi-node cluster architecture to support elastic capacity expansion and load balancing; heterogeneous hardware is provided, so that flexible acceleration capability is provided; through the high-speed internet, the data throughput is ensured; the system has the functions of data management, sharing exchange and networking learning;
The block chain network adopts a consensus mechanism optimized for the Internet of things, and both safety and efficiency are considered; the system has a lightweight data structure and supports high concurrency uplink; the security and confidential calculation of the node are ensured through password hardware and trusted environment; the intelligent contract supports the functions of storage certification, authority management and privacy protection;
The computing clusters of the cloud computing center adopt heterogeneous fusion architecture to support memory computing and nonvolatile storage; the distributed storage adopts erasure codes, multiple copies and data reliability technology of layered archiving; the large data platform is preset with various data processing components, and the PB level data acquisition, storage, calculation and visualization are supported; the intelligent video analysis platform realizes end-to-end analysis application through a deep learning frame and a preset model;
The control module judges the collision severity degree through multi-sensor fusion and has the flight control capability of inertial navigation, visual obstacle avoidance and indoor positioning; the system comprises an airborne edge computing platform, wherein the local storage of data and the extraction of abstracts are realized; and a multimode communication link is adopted to reliably connect with the edge node.
10. A picture loss prevention video recording apparatus according to any one of claims 1 to 9, wherein: comprises the following steps of;
S1, adsorption installation;
s2, driving video and cloud rendering;
S3, circularly cooling;
S4, self-adaptive active damping;
s5, air cooling and heat dissipation;
S6, emergency take-off;
S7, aerial video recording.
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