37results about How to "Avoid Secondary Traffic Accidents" patented technology

A traffic accident site rapid mapping system based on image guiding comprises a homography matrix solution module, a space coordinate transformation module, a re-sampling module, a mapping and marking module and a file preserving and printing module. The homography matrix solution module builds a mapping relationship between a traffic accident site picture image plane and an actual road plane according to the two-dimensional direct linear transformation method, the space coordinate transformation module restores the position information of a traffic site picture in object space according to the homography matrix and scales the range of the traffic accident site to the size range of the original traffic accident site picture, the re-sampling module restores gray information of the traffic accident site picture in object space and achieves transformation from a perspective picture to an orthographic projection picture of the traffic accident site picture, the mapping and marking module achieves direct mapping and relevant size marking of the traffic accident site information on the orthographic projection picture, and the file preserving and printing module achieves functions of preservation and site printout of the traffic accident site picture. By means of the traffic accident site rapid mapping system, the accuracy of traffic accident site survey is improved, the on-site data processing and mapping time is saved, and the requirement of site picture printout on the traffic accident site is further satisfied.

The invention discloses a driving guidance and early warning system for preventing secondary traffic accidents and bad weather. The micro-control processor controls the wireless signal of a specific frequency to transmit to vehicles within a certain range and synchronously starts the vehicle's external voice and light warning device. Please pay attention Avoid secondary traffic accidents and avoid aggravating the consequences of accident damage; under severe weather conditions such as rain, snow, haze, sand and dust, the automatic receiving and transmitting system will receive the fixed or portable early warning information device from the road management department and the public security traffic management department. The sent road visibility information or road control information reminds the driver and passengers of the vehicle to maintain a safe distance from the vehicle, and transmits the speed and lane information of the vehicle to the subsequent vehicles in the same direction. Guide vehicles to maintain a safe distance between vehicles at a safe speed, pass in an orderly manner, and avoid accidents.

The invention belongs to the technical field of real-time map updating, and discloses a real-time map updating system and method based on trust management and an Internet-of-vehicles terminal. A vehicle is registered in a law enforcement agency, and identity information is reserved in the law enforcement agency; the vehicle sends a request for updating the own public key to a law enforcement agency; road condition information is collected, and a vehicle accurately uploads surrounding road conditions to fog nodes to improve trust values; meanwhile, the fog node needs to carry out identity verification on the vehicle before receiving the message from the vehicle; the fog node verifies the road condition information uploaded by the vehicle by using a Bayesian inference model, and sends the road condition information to a real-time map updating server according to a verification result; the fog node generates a corresponding rating for each message source vehicle, so that the timeliness and the accuracy of map updating are realized; when the trust value of the vehicle is lower than the preset threshold value, the vehicle cannot continue to enjoy the service provided by real-time map updating, and Sybil attacks are avoided.

The invention discloses a wireless controllable movable warning board system. The wireless controllable movable warning board system comprises a vehicle-mounted controller or mobile phone used for controlling a movable warning board to walk. The vehicle-mounted controller comprises a microprocessor, a first Bluetooth end set is arranged on the microprocessor, the microprocessor is connected with a first Bluetooth module through the first Bluetooth end set, a voice recognition end set is arranged on the microprocessor, and the microprocessor is connected with a voice recognition module through the voice recognition end set; the microprocessor is provided with a GPS end set and connected with a GPS module through the GPS end set; the microprocessor is provided with a GSM end set and connected with a GSM module through a GSM module. The movable warning board comprises a trolley, and a warning mark is arranged on the trolley. According to the wireless controllable movable warning board system, the movable warning board can be controlled through the vehicle-mounted controller or the mobile phone, and rear-end collision traffic accidents are avoided.

The invention provides a method and a system for preventing secondary traffic accidents on a highway. The method comprises steps as follows: acquiring and comparing driving speeds of two front and rear adjacent motor vehicles on the same lane of the highway, calculating the distance value between the two vehicles when the driving speed of the rear vehicle is larger than that of the front vehicle,calculating the safe distance value between the two vehicles according to the driving speeds of the two vehicles, performing comparison to judge whether the distance value is smaller than the safe distance value, further judging whether the distance between the two vehicles is reduced to 0 if the distance value is smaller than the safe distance value, determining that rear-end collision happens totwo vehicles if the distance between the two vehicles is reduced to 0, generating a pre-warning message, acquiring a display device corresponding to the position where rear-end collision happens, andsending the pre-warning message to the display device for display. Early warning is realized when traffic accidents happen on a traffic accident frequent occurrence road section, safe travel of driving vehicles on the road section is guaranteed, secondary traffic accidents are avoided, a traffic management department is assisted in timely finding traffic accident information, and the accident handling efficiency of the traffic management department is improved.

The invention relates to a flexible guardrail and a rubber sponge body composition and production technology applied to the flexible guardrail. The flexible guardrail is characterized by comprising acolumn, a PVC sleeve which is dynamically matched with the column sleeves the outer wall of the column, and the outer wall of the PVC sleeve is wrapped by a rubber sponge body; the rubber sponge bodyis statically matched with the outer wall of the PVC sleeve, and an air flow guide device is arranged in the rubber sponge body. The rubber sponge body composition is characterized in that the rubbersponge body is prepared from rubber, padding, zinc oxide, stearic acid, softener, an anti-aging agent, sulfur, an accelerant, an ultraviolet-proof special addition agent and a foaming agent; the production technology of the rubber sponge body comprises the steps of material mixing, material extrusion, forming at the initial stage, processing at the middle stage and assembly at the later stage; theflexible guardrail has the advantages that the flexible guardrail is high in impact absorption capacity and good in impact stress dispersion and buffer effect, and the driving direction can be automatically restored.

The invention discloses a passenger car front anti-collision structure and an application method thereof. The passenger car front anti-collision structure includes a front bumper, a forewarning mechanism and a protecting mechanism, wherein the front bumper is located at the car head end of a passenger car, the forewarning mechanism is located above the car tail end of the passenger car, the protecting mechanism is located below the car tail end of the passenger, a first connecting plate and a second connecting plate are symmetrically arranged on the inner side of the front bumper, a sliding groove is formed in the inner side of the first connecting plate, and sliding rods are horizontally mounted above and below the interior of the sliding groove. According to the passenger car front anti-collision structure and the application method thereof, generated impacting force during multiple collision can be buffered, damage to the passenger car and on-car personnel is reduced when the passenger car is collided, the life and property safety are ensured at the greatest extent, a secondary traffic accident at the position is tired to be avoid if a rear brake is not applied in time, meanwhile, a protecting airbag on the tail part can perform the buffering and protecting effects under the condition of not paying attention of a rear car during the second traffic accident, and safety of a passenger car tail and passenger car is protected.

The invention provides a road congestion information reminding method and system. The road congestion information reminding method comprises the steps that a picture of a congested road section is obtained, and congestion reminding information is generated; and a user requests for obtaining the congestion reminding information, and moving on or detouring is judged according to the congestion reminding information. The picture of the congested road condition can be obtained, a user of a later coming car makes a correct road choice in advance conveniently, the passage time is saved, and the overall traffic operation efficiency is improved.

The invention provides a road center fence capable of toppling over safely. The road center fence comprises a plurality of bases and barrier grid assemblies arranged between every two adjacent bases, each barrier grid assembly comprises two stand columns and barrier grid units arranged between the two stand columns, and adjacent stand columns of every two adjacent barrier grid assemblies are arranged on the same base. The road center fence further comprises steel blocks and pin shafts, the bottoms of the steel blocks are fixedly connected with the corresponding bases, the lower ends of the adjacent stand columns of every two adjacent barrier grid assemblies are arranged between two corresponding steel blocks, arc-shaped grooves are formed in the contact surfaces of the stand columns and the corresponding steel blocks, arc-shaped protrusions matched with the arc-shaped grooves in a clamped mode are formed in the steel blocks, and each pin shaft penetrates through two corresponding steel blocks to connect the steel blocks and the corresponding stand columns. The stability of the road center fence can be guaranteed; when a vehicle collides with the road center fence, the adjacent stand columns rotate to be staggered so that a single barrier grid assembly can topple over safely, the situation that several barrier grid assemblies topple over at the same time, fly to a lane in the opposite direction and cause secondary traffic accidents is avoided, the safety protection effect is achieved, and the traffic safety and traffic efficiency of urban roads are guaranteed.

The invention discloses a double protective fence in the middle of a road. The double protective fence in middle of the road comprises a plurality of pairs of stand columns, corrugated fence inner plates and corrugated fence outer plates; the lower ends of the stand columns are fixed to a road surface; a buffering frame is connected between each pair of stand columns; buffering blocks are fixedly connected to the side wall of the upper end of each stand column; the corrugated fence inner plates are transversely distributed on the two sides of the pairs of stand columns, and are fixedly connected with the buffering blocks at the same time; the corrugated fence outer plates are arranged on the outer sides of the corrugated fence inner plates side by side; and a plurality of compression springs are connected between the inner side faces of the corrugated fence outer plates and the outer side faces of the corrugated fence inner plates. The double protective fence in middle of the road has high protecting performance, a vehicle cannot directly break the double protective fence in middle of the road easily in a rushing manner, meanwhile, good buffering performance is also achieved, it is guaranteed that no serious damage is caused easily after the vehicle rushes into the double protective fence in middle of the road, and the survival rate of personnel in the vehicle is increased.

The invention discloses a vehicular multifunctional traveling storage bag. The vehicular multifunctional traveling storage bag comprises handles, a storage bag body, a reflecting plate, a reflecting waistcoat, a fixing barrel, a safe hammer, a push plate, a first spring, a first folding plate, a buckle box, a buckle, a second folding plate, a fixing block, a second spring, a fixing groove, a thirdspring, a fixing latch, a second fixing rod and a fifth spring. The vehicular multifunctional traveling storage bag is provided with the fixing barrel, the safe hammer is placed in the fixing barrel,after an accident happens, the safe hammer can be taken out in time, and can be used for breaking a vehicle window in time, thus, a user can save himself in time, the first folding plate and the second folding plate are arranged on the bottom of the storage bag, when articles are placed, the first folding plate and the second folding plate extend, the space of the storage bag is expanded, after the articles are taken out, the first folding plate and the second folding plate contract under the effect of the third spring, and a proper accommodating space is provided.

The invention provides an expressway traffic accident detection and early warning system. The expressway traffic accident detection and early warning system comprises a field detection unit, a data processing unit, an information transmission unit and an alarm unit. The field detection unit comprises an image acquisition module and an image receiving module; the data processing unit comprises a vehicle detection module, an agglomerate fog detection module, a vehicle tracking module, an information processing module and a storage module; the vehicle detection module is used for detecting and judging whether a target object in a to-be-detected area is a vehicle or not; and the agglomerate fog detection module is used for detecting whether agglomerate fog exists in the to-be-detected area ornot; the information transmission unit comprises a wireless transmitting module; the wireless transmitting module is connected with the information processing module; and the information processing module is communicated with the alarm unit through the wireless transmitting module. Correspondingly, the invention provides an expressway traffic accident detection and early warning method, which is higher in detection precision and low in false alarm rate, and secondary traffic accidents on the expressway are effectively avoided.

The invention discloses a street lamp with the warning protection function. The street lamp comprises a fixed bottom frame, wherein a sliding cavity is formed in the fixed bottom frame, a straight groove is formed in a side wall of a top end of the fixed bottom frame, and a threaded rod and a threaded sleeve are arranged in the straight groove. By arranging the first lamp holder, the second lamp holder and the second lamp body, when emergency traffic accidents such as collapse and fault vehicles occur on a road at night, a rotating disc is rotated, a threaded rod descends, the threaded rod enables a threaded sleeve to move downwards, and the threaded sleeve drives the second lamp holder and a third lamp holder to move downwards at the same time; then the third lamp holder is pulled out from the storage groove of the second lamp holder 1, at the moment, a first conductive block makes electrical contact with a second conductive block, a second lamp body is powered on to emit light, the second lamp holder and the third lamp holder form a roadblock, meanwhile, first lamp bodies on the second lamp body and the third lamp holder conduct illumination, and therefore the warning effect on passing vehicles is achieved; and the passing vehicles can bypass so that occurrence of secondary traffic accidents is avoided.

The invention discloses an emergency anti-collision device for highway engineering, and belongs to the technical field of anti-collision guardrails. According to the emergency anti-collision device for highway engineering, an annular cutter is arranged on a base, and an anti-collision rod is arranged in the annular cutter so that the anti-collision rod can be timely cut off by the annular cutter when being directly collided by a vehicle; prevention of a secondary traffic accident caused by vehicle rebounding back to the lane is achieved; when the out-of-control vehicle collides with the anti-collision baffles, the anti-collision panels between the adjacent anti-collision rods are collided, the energy absorption cylinders are extruded to collapse inwards to absorb kinetic energy of the vehicle, in addition, the buffer cables are stretched by an impact force and drive the sliding blocks to slide in the limiting sliding grooves, and the kinetic energy of the vehicle is absorbed; and when the collision force of the vehicle is too large, the anti-collision baffles and the buffer cables pull the anti-collision rods to be bent and cut off by the annular cutter, at the moment, the multiple sections of anti-collision baffles and the buffer cables in the anti-collision baffles are stressed at the same time, and the vehicle is buffered.

The invention provides a traffic accident scene investigation system based on an unmanned aerial vehicle and WIFI (wireless fidelity). The traffic accident scene investigation system comprises a traffic accident scene investigation system and a global navigation satellite system receiving machine connected with the traffic accident scene investigation system. The traffic accident scene investigation system is characterized in that the traffic accident scene investigation system comprises a scene calibration sub system, a scene image obtaining sub system, a data processing sub system, a real-time communication sub system and a drawing sub system. The traffic accident scene investigation system has the advantages that the positioning is accurate; the accident scene investigation efficiency and accuracy are greatly improved; the personnel consumption and the indirect loss caused by accidents are reduced; the occurrence of secondary traffic accidents is effectively avoided.

The invention discloses an expressway fault warning device, and relates to the technical field of traffic warning devices.The expressway fault warning device comprises a mounting base, a warning board and a sound box, the warning board is movably arranged at the top of the mounting base, the sound box is fixedly connected to the rear side of the warning board, a mounting cavity is formed in the mounting base, and the sound box is fixedly connected to the rear side of the warning board; and a lifting mechanism is arranged in the mounting cavity. According to the traffic warning device, through cooperation of the lifting mechanism, the sound producing mechanism, the sound amplifying mechanism and the stabilizing mechanism, the problem that due to the fact that most of existing traffic warning devices cannot send danger signals to a rear vehicle, the response time of the rear vehicle is insufficient, and a secondary traffic accident is likely to happen is solved; meanwhile, the problem that most of existing traffic warning devices cannot be lifted, so that rear vehicles cannot find the situation in time is solved, the effect that accident signals are effectively transmitted to the rear through cooperation of sound transmission and the warning lamp is achieved, and meanwhile the effect of lifting the warning board is achieved.

The invention discloses a tower type traffic warning cone which comprises a supporting chassis, a cone top and a plurality of middle connecting layers arranged between the supporting chassis and the cone top, the middle connecting layers are combined together in a sleeved mode, spring assemblies are arranged in the centers of the middle connecting layers, and the upper ends and the lower ends of the spring assemblies are fixed into the cone top and the supporting chassis respectively. A plurality of sliding groove assemblies are arranged on the outer wall of the cone top and the outer wall of the middle connecting layer, buckle assemblies are arranged on the inner wall of the supporting substrate and the inner wall of the middle connecting layer, and the sliding groove assemblies are clamped with the corresponding buckle assemblies. The tower type traffic warning cone is simple, practical, compact in structure, small in storage size, convenient to use, large in light reflecting region, good in light reflecting effect, stable and reliable, and the cone top and the middle connecting layers are telescopically fixed through clamping of the sliding groove assemblies and the buckle assemblies.