257results about How to "Avoid tailgating" patented technology

The invention discloses a lateral active collision avoidance system and a control method thereof. The system comprises a signal acquisition system, a signal processing system, and a controller. The signal acquisition system comprises a vehicular radar set, an image acquisition system and a vehicle sensor. The input end of the signal processing system is connected with the output end of the signal acquisition system, and the signal processing system is sued for converting data acquired by the signal acquisition system into electrical signals and transmitting the data to the controller. The input end of the controller is connected with the output end of the signal processing system, and the controller is used for further processing the data acquired by the signal processing system. The lateral active collision avoidance system is capable of allowing vehicles to actively avoid collisions during running, damage caused by rear-end collisions can be reduced effectively, the damage of vehicle lateral collision upon drivers and vehicles and upon blocked vehicles and passengers can be reduced effectively, loss on economic property can be reduced effectively, a safer and more comfortable driving environment is provided for drivers, and driving safety is improved.

The rail transportation system of small vehicles is used to replace available underground railway and light rail system, and has small driverless vehicles running in closed rail. The system consists of vehicles, closed rails and stations, the vehicles are computerized automatic ones, the closed rails is provided with vehicle controlling equipment, and the vehicles are started from stations randomly for express service from station to station. The present invention has the advantages of great traffic amount similar to that of main stem transportation, personalized service, low construction investment and low running expensive. It may be used for both passenger transport and cargo transport, and municipal rail transportation network may be constructed.

The invention discloses a collision avoidance system and an automatic braking method of an electric automobile. The collision avoidance system comprises an information collecting module, an information processing module, an intelligent decision making module, a regenerative braking module and a mechanical braking module, wherein the information collecting module is used for real-timely collecting the distance between the electric automobile and a front vehicle or an obstacle and a current running speed; the information processing module is used for real-timely calculating rear-end time of the electric automobile and the front vehicle or the obstacle, regenerative braking safe time and mechanical braking safe time; the intelligent decision making module is used for deciding whether normal running is continuously kept or whether a regenerative braking mode is started or whether a combined braking mode of the regenerative braking mode and a mechanical braking mode is started according to the rear-end time of the electric automobile and the front vehicle or the obstacle, the regenerative braking safe time and the mechanical braking safe time; the regenerative braking module is used for starting regenerative braking for the electric automobile according to a regenerative braking mode starting signal provided by the intelligent decision making module; and the mechanical braking module starts mechanical braking for the electric automobile according to a combined braking mode starting signal provided by the intelligent decision making module.

The invention discloses an on-vehicle electronic warning system for road safety, comprising a wireless broadband special network established at the side of the road. The wireless broadband is composed of a road-side wireless signal transmitting tower, road-side optical cables and a database computing center and is used for receiving operational data of each vehicle on the road while uninterruptedly sending road feature data to each vehicle. An on-vehicle road safety electronic shield terminal arranged in the vehicle uninterruptedly transmits vehicle locations, time and speed data computed by a satellite and land station signals to the database computing center of the road-side wireless special network subsequent to the reception of a positioning signal from a global positioning system so that all the vehicles share the positioning data, meanwhile, the terminal uninterruptedly receives and reads the road feature data sent by the wireless broadband special network during the traveling, and sends, in case that the distance between vehicles are too close or the vehicle is about to deviate from own traffic lane, warning information to related drives in order to avoid traffic accidents such as vehicle rear-end collision, deviation from the roads, side collision, etc.

The invention relates to a safety control technology of electric automobiles. The invention discloses a method for controlling safe operation of an electric automobile and a device for controlling the safe operation of the electric automobile, aiming at the defect of a method of controlling sudden loss of voltage of a power battery pack of the electric automobile in the prior art. The method comprises the following steps of: detecting the working state of a power battery pack in real time by an acquiring module; transmitting the acquired signal to a control module to determine whether the voltage is lost based on the received signal, and forecasting and estimating the dynamic characteristics of the power battery pack; transmitting the running mode signal of a motor to the control module through a communication module; if the loss of voltage is detected, quickly starting a step-up module through the control module; when the voltage is increased to a given value, controlling a switching module to act, and controlling the electric automobile to run in a related mode enable certain endurance for the electric automobile. By using the method and device for controlling the safe operation of the electric automobile, the electric automobile with fault in the power battery pack can be kept in the original state for a time, therefore, a certain time is provided to the driver to handle the fault in emergency, and the traffic accidents such as rear-end collision can be avoided.

The invention relates to intelligent detection control device and method of safe interval. The device comprises a binocular pinhole camera, a signal processor, a vehicle speed control mechanism and a voice prompter. An output interface of the binocular pinhole camera is respectively connected with two image input interfaces of the signal processor through a video cable; and an output interface ofthe signal processor is connected in parallel with an input interface of the vehicle speed control mechanism and an input interface of the voice prompter. In the method, the vehicle distance from thefront vehicle is automatically detected, and the kept safe distance is accurately controlled according to the speed of the vehicle. The invention ensures that the speed is reduced in a real-way and accurate way until braking according to the current vehicle speed and the interval, thereby effectively avoiding traffic accidents such as tailgate. The counting data in the implementation result showsthat the tailgate accident can be reduced by above 95%.

The invention provides a safe driving and positioning system for a vehicle. The system is characterized by consisting of a wireless remote control sub-system, a safety channel positioning sub-system, a wheel driving positioning sub-system, a merging pre-warning positioning sub-system, an ultrasonic detection positioning sub-system, a high-speed distance measurement positioning sub-system, a bodywork left-right protection positioning sub-system and a bodywork front-back protection positioning sub-system, wherein, the safety channel positioning sub-system can open up a safe driving positioning channel for a vehicle in driving; the wheel driving positioning sub-system can guarantee the positioning direction and driving safety of wheels under a special road condition; the merging pre-warning positioning sub-system can measure the distance and position for vehicles on left and right lanes during merging so as to ensure safe track combining or risk pre-warning; the high-speed distance measurement positioning sub-system can perform safe driving distance measurement and positioning on the vehicles running on an express way; and the bodywork protection positioning sub-system can prevent traffic accidents caused by left-right impact and front-back rear-end of the bodywork.

The invention relates to an automotive vehicle traffic security early-warning prevention controlling system, which aims at improving the security coefficient of a driver, reducing the traffic accidents, recording the traveling data of the automotive vehicle and the driver, and notifying the vehicle owner of the current state, the position range and the positioning function in time. Through a real-time three dimensional video frequency image and a sonar system to identify the obstacles at the front and rear sides, the emergency lamp signals, the brake lamp signals, and the traffic light signals to identify the a highway street sign mark to limit a highest vehicle travel speed. If the driver takes no emergency measure during the early-warning process, the system automatically adopts the corresponding vehicle speed reduction, engine closing and emergency braking. The correlative traveling state date of the automotive vehicle is stored for 30 days uninterruptedly. Through the system software to process the sonar and video frequency image date, the overspeed fatigue driving of the driver, the alcohol content detection, jumping the red light, and the stealing prevention and the go astern anti-collision early warning of the automotive vehicle are checked all whether. The automotive vehicle speed, the driver state and the data of the live images at the front and rear sides of the automotive vehicle are recorded.

The invention relates to the technical field of automatic driving, in particular to an automatic driving speed control system and method based on a high-precision navigation and positioning system. The automatic driving speed control method comprises the following steps of: obtaining road relevant information stored in a high-precision map of an existing road section; fusing the road relevant information stored in the high-precision map of the existing road section with vehicle travelling state information to calculate target vehicle speed suitable for automatic driving; comparing the target vehicle speed with existing vehicle speed; if the target vehicle speed is greater than or smaller than the existing vehicle speed, sending an engine enabling signal and an engine torque request instruction to an engine controller, and enabling the existing vehicle speed to be equal to the target vehicle speed, wherein the engine controller correspondingly regulates engine torque according to the engine torque request instruction. According to the automatic driving speed control system and method, a power system and a brake system are controlled in advance to take measures, so that the vehicle speed is timely corrected, and the problem that vehicle speed control is not timely is effectively solved. Under an emergency situation, a brake lamp is light to remind a vehicle behind to control vehicle speed, so that rear-end collision is avoided.

The invention provides a gate machine. The gate machine comprises a first side engine body, a second side engine body, a ticket and identity card detecting device, a first gate machine door, a second gate machine door, a third gate machine door, an identity recognition device and a stream guidance door, wherein the second side engine body and the first side engine body are arranged in a spaced mode to form a gate machine channel, the ticket detecting device is arranged at an entrance end of the gate machine channel and is used for detecting ticket and identity card information of a passer, the first gate machine door, the second gate machine door and the third gate machine door are arranged at intervals along the gate machine channel, the first gate machine door is used for blocking or opening the gate machine channel; the identity recognition device is arranged between the first gate machine door and the third gate machine door, and is used for recognizing the identity information of the passer, and the stream guidance door is arranged on the first side engine body which is on one side of the gate machine channel and is located between the first gate machine door and the second gate machine door, and is used for guiding the passer to leave the gate machine channel from the stream guidance door. The invention further provides a gate machine set. The gate machine and the gate machine set can achieve the unification of 'human, ticket, and identity card', the passer can be effectively preventing from tailing after a person ahead and entering the gate machine, and forcibly breaking through the gate machine, and thus the traversing order of the gate machine is improved.

The invention discloses a train running control system with a vehicle on-board controller as a core. The train running control system comprises a intelligent vehicle on-board controller IVOC arrangedon each train, wherein the IVOC comprises a train-to-train communication device, an initiative identification device and a main control device. The train-to-train communication device is used for acquiring current running information of other trains; the initiative identification device is used for determining whether an obstacle exists in front of the running direction of the train, and if the obstacle exists, determining a distance between the obstacle and the train; the main control device is used for calculating first movement authority MA of the train according to the current running information of the train and the current running information of the adjacent front train equipped with the train-to-train communication device, determining the first MA as a final MA if no obstacle existsin front of the train, determining a second MA of the current train according to the distance if the obstacle exists, and determining a final MA according to the first MA and the second MA. By virtueof the control system provided by the invention, when the obstacle exists in front of the running direction of the train, the tail collision or more serious accidents of the train can be avoided. Onthe premise of ensuring the safety running of the train, the running efficiency of the train can also be increased.

The invention discloses a motor vehicle track control method and a motor vehicle navigation coordinate system establishment method. Two reference points are selected at random, and the distance between the two points is calculated; any one point is taken as the original point, and the connecting line of the two points is taken as the X axis to establish an XY axis coordinate system; based on the established coordinate system, laser navigation equipment of a motor vehicle emits a linear laser by the angle theta, and the motor vehicle linearly backs up along the deflection angle of a vehicle body; and when the liner laser scans the reference point which is not the original point, a steering wheel is turned to the fixed position to change the travelling track. The motor vehicle track control method and the motor vehicle navigation coordinate system establishment method can be used in any garage, parking lot and open space, and the using range is wide; interference from the surrounding environment is small, and parking can be achieved at any angle and position; the accurate and safe effects are achieved, mounting and dismounting are convenient, suitable clamp tools can be selected according to vehicle types and are directly clamped on rearview mirrors, a power source is carried, and the vehicle route does not need to be changed; and the shape is attractive, extra wind resistance is not generated, a protective shell and the outer rearview mirrors are integrated into a whole, and the outer rearview mirrors can be laid flat or retracted into the protective shell.

The invention applicable to the technical field of unattended access control provides anti-following unattended pedestrian path equipment, which comprises a first gate, a second gate, at least one people flow acquisition device, and a main control unit. The first gate is provided with at least one permission reading device for verifying permission to open the first gate. A closed channel frame isarranged between the second gate and the first gate. The at least one people flow acquisition device is arranged on the second gate and/or the top of the channel frame and is used for detecting the number of people entering the channel of the first gate. The main control unit is respectively connected with the permission reading device and the people flow acquisition device and is used for receiving the authorized people number sent by the permission reading device and the passage people number sent by the people flow acquisition device, judging whether the authorized people number is greaterthan or equal to the passage people number or not, and if so, controlling the second gate to be opened, and otherwise, controlling the first gate to be opened or not closed. Therefore, unattended operation of the channel can be realized, and following can be effectively prevented.

The invention discloses an anti-trailing interactive linkage door. The anti-trailing interactive linkage door comprises an inner door body, an outer door body and a channel arranged between the inner door body and the outer door body. The inner door body comprises an inner door frame and an inner door plate, and an inner door intelligent lock is arranged between the inner door frame and the inner door plate. The outer door body comprises an outer door frame and an outer door plate, and an outer door intelligent lock is arranged between the outer door frame and the outer door plate. A controller used for controlling locking and unlocking of the inner door intelligent lock and the outer door intelligent lock is arranged in the channel, and an inner door identity recognizer I and an outer door identity recognizer I are arranged on the outer side faces, backing onto the channel, of the inner door plate and the outer door plate correspondingly. A weight sensor electrically connected with the controller is arranged on the bottom surface of the channel. An inner door infrared sensor and an outer door infrared sensor which are used for detecting the number of people entering a space and electrically connected with the controller are arranged at the top of the inner door frame and the top of the outer door frame correspondingly. Counters corresponding to the inner door infrared sensor and the outer door infrared sensor are arranged in the controller, and alarm devices electrically connected with the controller are arranged on the inner door body and the outer door body.

The invention discloses an automatic lane change method and system based on vehicle flow analysis. The method includes the steps: acquiring an image in left front of a current vehicle, and taking theimage as a first image; acquiring an image in right front of the current vehicle, and taking the image as a second image; taking a lane of the current vehicle as a first lane to perform extraction ifthe current vehicle is on a straight lane; calculating the number of vehicles in the first lane, and taking the number of the vehicles as a first number; taking a straight lane of the left side of thefirst lane as a second lane to perform extraction if the left side of the first lane is a straight lane; calculating the number of vehicles in the second lane, and taking the number of the vehicles as a second number; taking a straight lane of the right side of the first lane as a third lane to perform extraction if the right side of the first lane is a straight lane; calculating the number of vehicles in the third lane, and taking the number of the vehicles as third number; comparing the size of the number of the vehicles; taking the straight lane containing the fewest vehicles as a fourth lane to perform extraction; and controlling the current vehicle to be changed towards the fourth lane.

The invention discloses a door access anti-following system and method. The door access anti-following system comprises a first information identifier, a first door access controller, a second information identifier, a second door access controller, at least one camera, a camera controller, a main controller, a first door and a second door; a door access protection region communicates with the external through a channel; the first door and the second door are adjacent to each other, the first door, the second door and a channel surrounding region are the detection region; at least one camera is used for shooting a real-time image in the detection region, the area of the detection area is less than or equal to a preset value, the first door access controller and the second door access controller are respectively used for controlling the open and close of the first door and the second door. Through the technical scheme provided by the embodiment of the invention, one person can pass thedoor access to enter the door access protection region through the same door access information, and the following phenomenon is avoided.

The invention discloses a gate machine for face recognition. The gate machine comprises a left gate post and a right gate post, pulley limiting grooves are uniformly arranged at a middle location of the top of a traveling base plate, a sliding sensor is fixedly connected to the internal of each pulley limiting groove, the middle location at the top surface of the traveling base plate is fixedly connected with a weight meter; gate outer baffle plates are fixedly connected right ends of limiting inserted links and one end located at the external of a gate baffle plate, the alarms are fixedly connected to the top ends at the external of the left gate post and the right gate post and the locations close to the outside; the right side of the external top end of the left gate post is fixedly connected with a personnel amount detector, a left side of the external top end of the right gate post is fixedly connected with a face recognition adjusting mechanism, and a middle location of the top end in the right gate post is fixedly connected with a motor controller. The invention relates to the technical field of the gate machine. The gate machine for the face recognition can prevent the personnel from passing the gate machine by following, and the aim of improving the passing efficiency of the face recognition is improved.

The invention relates to the field of vehicle chassis and discloses an automatic parking device and method with a memory function. The automatic parking device with the memory function comprises an AUTOHOLD switch, a detection module and a control module. After an automatic parking function is started by using the AUTOHOLD switch at the first time, AUTOHOLD switch starting information is generated. When the automatic parking function is accidentally closed and restarted, after the detection module detects the AUTOHOLD switch starting information and when the detection module detects that an automatic parking function starting condition is satisfied, the control module controls the automatic parking function to be automatically started. The automatic parking device with the memory functioncan memorize that the automatic parking function has been started by the AUTOHOLD switch so that the automatic parking function can be automatically started when being started again; and therefore, the automatic parking device with the memory function is convenient for drivers to operate, and the driving experience is improved.

The invention, belonging to the field of safety protection, specifically relates to an anti-trailing control system, comprising an identification recognition system, dynamic weighing systems, a management computer and a personnel access door controller, wherein, the identification recognition system is used for identifying and determining ID cards of personnel in and out, the dynamic weighing system is used for collecting and comparing weight information of personnel in and out and updating and sending control information to the personnel access door controller, and the management computer is used for managing and updating the weight information of each access channel equipped the dynamic weighing system in the system. According to the invention, the problem of difficult anti-trailing control is settled satisfactically, and the advantages of accuracy, reliability and utility are achieved.

The invention discloses a mine vehicle square array formation control system, which is divided into a multi-operating-mode switching module, a desired vehicle spacing calculation module, an acceleration calculation module and an early-warning module. When calculating desired longitudinal vehicle spacing, the mine vehicle square array formation control system considers the influences of controlledmember vehicle load capacity, brake action delay and square array delay, considers the influences of desired brake spacing and desired parking spacing at the current road surface level, and prevents rear-end collision accidents of controlled member vehicles caused by emergency braking in case of emergency. The mine vehicle square array formation control system provides four operating modes, whichare respectively an efficient mode and an energy-saving mode according to the operating conditions, and a slippery mode and a foggy night mode when the road surface condition is poor or the visibilityis low, and the driving safety of a vehicle team is guaranteed; and when driving on an unstructured road and an open space without a road as well as driving intermountain, an auxiliary vehicle driverperforms driving control over an auxiliary vehicle, and following vehicles follow the corresponding auxiliary vehicle in driving, thereby expanding the adaptability of the mine vehicle square array formation control system to the terrain.

The invention discloses a vehicle safety protection method and device. The vehicle safety protection method comprises the steps that threshold values are set; the travelling speed of a vehicle, the relative speed and the vehicle distance between the vehicle and a front vehicle, and surrounding obstacles are detected and compared with the set threshold values; whether detected data are larger thanthe set threshold values or not is analyzed; if the detected data are larger than the set threshold values, alarm is issued; and when a driver does not take deceleration or acceleration braking measures within 0.8 second, a system conducts emergency braking and increases the distance between the vehicle and the front vehicle or a rear vehicle in a forced mode. The steps are matched with an information acquisition module, an information processing and control unit, an execution module, a storage module and a power supply unit in the device to be implemented, the travelling speed of the vehicleis controlled within the safe travelling speed range, meanwhile, the vehicle is all-dimensionally monitored in real time, the timely alarm function is provided, the rear-end accident rate is effectively decreased, and when the two vehicle collide, the vehicle active safety protection device is automatically started, so that the travelling safety is improved all-dimensionally.

The invention discloses an automatic repairing vehicle for cracks, which comprises a vehicle body, a pavement scanning mechanism, a crack identification module, a positioning module, a central processor and an executing mechanism, wherein the pavement scanning mechanism is used for capturing the real-time state of a pavement; the crack identification module is used for carrying out analysis and identification on the scanned information of the pavement, and determining whether the pavement has cracks; the positioning module is used for determining the geospatial position of the vehicle body, and judging the distance and direction between the vehicle body and the position of a crack; the central processor is used for processing signals transmitted by the pavement scanning mechanism, the crack identification module and the positioning module; and the executing mechanism is used for executing a command sent by the central processor, and carrying out crack cleaning processing and repairing on the identified crack. According to the invention, a crack on a pavement can be automatically identified through the pavement scanning mechanism, and after signal processing, the executing mechanism repairs the pavement; and the whole crack identifying and repairing process is implemented integrally through intelligent operation, thereby solving the problems of untimely monitoring on pavements, large labor consumption and long construction time caused by manual operation, and realizing the automatic identification and automatic repairing of cracks of pavements.

The present invention provides one kind of locomotive safety protection method and system superior to available technology. The locomotive safety protection method includes the following steps: 1. for the locomotive to obtain its own position information by means of the built-in GPS module; 2. for the locomotive to send out its running data and position information outwards; 3. for the radio transceiving system to provide the locomotive information continuously to other locomotives; 4. for the locomotive to receive the information of other locomotives, to judge the collision possibility and to alarm automatically; and 5. for the locomotive the take corresponding measures.