31results about How to "Reduce driving hazards" patented technology

The invention discloses a method for achieving illumination of a highway tunnel without an artificial light source. The method is characterized by including the steps that no artificial light source is arranged in the whole highway tunnel, a sunshade with the segmented transition light transmittances is arranged outside a tunnel portal, and a hollow-out portion is arranged on the sunshade; the illumination problem in the tunnel is solved through the sunshade and reflecting signs in the tunnel. The danger level is reduced to the largest extent according to the eye adaptation time and economic conditions, the light-transmitting material and the light-transmitting area of a safety area are designed to gradually change according to the illumination transition rate which the eyes can adapt to naturally, so that a driver drives a car comfortably, and the method is the embodiment that highways are designed in the people-oriented principle. The method can be adaptive to long-sized highway tunnels at various areas, especially long-sized highway tunnels with large illumination changes, and has the advantages that the structure is simple, arrangement is convenient, and the use effect is good.

Disclosed are a lane departure early warning method and system. The lane departure early warning method comprises the following steps: a vision collector obtaining lane mark line information of a road image, a vehicle body information sensor collecting vehicle body information, providing the lane mark line information and the vehicle body information to an FPGA logic center, and the FPGA logic center determining information of the location of a vehicle in the lane and the direction through conversions; the FPGA logic center providing the information of the location of the vehicle in the lane and the direction to a DSP computing center, and the DSP computing center determining whether an alarm is triggered or not under the current state according to set the early warning conditions; an alarm module receiving the warning information issued by the DSP computing center and performing vehicle body control according to the warning information; and arranging a head-up display HUD on glass in front of the head of a driver, wherein the display at least displays vehicle row parameters, as well as the information of the location of the vehicle in the lane and the direction. The lane departure early warning method and system can assist in the conditions of inattention and the like due to over-fatigue or long-term monotonous driving.

The invention relates to the technical field of vehicles, and discloses a vehicle-mounted head-up display system and a control method thereof. Wherein the vehicle-mounted head-up display system includes a head-up display device, a pupil tracking device and a controller; the head-up display device is arranged in front of the driver for displaying images, and its position can be adjusted; the pupil tracking device is used to obtain the driver's pupil position information; The controller is electrically connected with the head-up display device and the pupil tracking device, and can receive the pupil position information, and control the head-up display device to adjust the position according to the pupil position information, so that the driver can see the image clearly. The invention also discloses a control method using the vehicle-mounted head-up display system. The vehicle-mounted head-up display system of the present invention can adjust the head-up display device according to the driver's pupil position information, and has good imaging effect without distortion, distortion or distortion; and does not require manual adjustment by the driver, which is more convenient and safer.

The invention relates to a real-time square surface looking board guidance design method of a navigation apparatus. According to the present invention, the method is achieved through a geographic information reading module, a GPS receiving / positioning module, a path planning module, an intersection guidance data making module, a guidance control module, and a display module; based on different use requirements of users in the two cases of the path with no planning and the path with planning, two sets of real-time image guidance control implementation schemes are designed, wherein the first scheme is real-time image guidance control in the case of the path with no planning, and the second scheme is real-time image guidance control in the case of the path with planning; and the design method has the following advantages that: on the basis of the existing navigation guidance services, innovative functions are provided, real-time, dynamic, intelligent and humanized features are added, defects that the traditional square surface looking board has a fixed position, is immovable, and can not initiatively provide turning prompts for drivers are effectively overcome, and distraction with looking the square surface looking board indication board erected on the roadside is not required during a driving process so as to reduce driving risk and protect safety of personnel and vehicles.

The invention provides a system for guiding a tunnel road in advance. The system comprises a map data storage module, a driving route planning module, a GPS positioning module, a GPS navigating module, a tunnel entrance detection module, an inside-tunnel positioning module, an inside-tunnel navigating module, a tunnel exit detection module and a tunnel exit prompting module. The system has the advantages that when a vehicle approaches a tunnel, a tunnel entrance position is reported in advance, so that a driver can prepare for entering the tunnel; when the vehicle enters the tunnel and runs inside the tunnel, the vehicle is navigated based on a non-GPS positioning way; when the vehicle leaves from the tunnel, a tunnel exit position is reported in advance, so that the driver can prepare for leaving from the tunnel; therefore, for a road with the tunnel, the system can comprehensively improve the driving safety and reduce driving dangers; in addition, the non-GPS positioning provided by the invention has the advantage of a simple and accurate positioning algorithm.

The automatic misoperation preventing control system includes one hydraulic acceleration unit and one hydraulic braking unit. The hydraulic acceleration unit includes one accelerating pedal, one hydraulic control valve, one braking hydraulic sensor, one solenoid valve and one accelerating hydraulic sensor. The accelerating pedal is connected mechanically with the valve core of the hydraulic control valve; the hydraulic control valve has one first output connected to the hydraulic oil tank, one second output connected to the input of the solenoid valve and one third output connected to the braking cylinder inlet of the hydraulic control valve; the solenoid valve has one first output connected to the accelerating hydraulic sensor and one second output connected the hydraulic oil tank; and the braking hydraulic sensor is connected to the braking cylinder inlet of the hydraulic braking unit.

The invention discloses a method for controlling the driving torque of a pure electric vehicle, which limits the driving torque according to the gear position of the vehicle, the torque demanded by the driver, the vehicle speed, the activation of the chassis torque intervention function and the activation of the speed limit function. , which can avoid a large unexpected acceleration when the controller software data overflows, thereby reducing the driving danger of the vehicle and reducing the safety threat to the driver.

The invention discloses an expressway garbage cleaning device, and relates to the technical field of expressway garbage cleaning devices. The device comprises a vehicle head and a garbage cleaning vehicle hopper connected with the vehicle head, the garbage cleaning vehicle hopper comprises a first dangerous object collecting box and a second dangerous object collecting box which are located on the left side and the right side, cleaning working chambers which are located on the lower portions of the middles of the first dangerous object collecting box and the second dangerous object collecting box, and dust collecting chambers which are located on the upper portions of the middles of the first dangerous object collecting box and the second dangerous object collecting box, and a sweeping device is arranged in each cleaning working chamber. Dangerous obstacles on the expressway pavement are conveyed to the first dangerous object collecting box or the second dangerous object collecting box through the sweeping device, a dust collecting fan is arranged in each dust collecting chamber, and dust in the cleaning working chambers is collected into the dust collecting chambers through the dust collecting fan. The dangerous obstacles on the surface of the expressway can be effectively cleaned, dumping is convenient, the driving danger on the expressway can be reduced, and the safety of the expressway is improved.

The invention discloses a method for excluding online-rail-welded-joint straightness-detection misjudgment inducements. The problem that misjudgments exist in existing online-rail-welded-joint straightness detection is solved. The method includes the steps that a, an electric straight ruler is verified to be eligible; b, a first oscillogram is lead in the free state of a rail-plant welded joint; c, a second oscillogram is lead in the free state of a rail base material on which a line is paved; d, the first oscillogram and the second oscillogram are averaged to form a third oscillogram; e, the rail joint and the base material which are fixed on the line are selected, and a fourth oscillogram is formed; f, a coordinate graph is drawn; g, detection is carried out, the result is ineligible when the detection value is larger than the corresponding numerical value of the fourth oscillogram, the result is eligible when the detection value is smaller than the corresponding numerical value of the third oscillogram, and when the detection value is between the third oscillogram and the fourth oscillogram, adjustment is carried out, and then whether the result is eligible or not is determined by detecting whether the detection numerical value reaches the standard or not. By means of the method, the problems that due to detection misjudgments of straightness, a welded seam is corrected, and even a rail is sawn to be re-welded are solved.

The invention relates to a trigger judging circuit for an intelligent precision voltage stabilizing chip of a vehicle-mounted DC converter, which solves the defect that the output voltage of the vehicle-mounted DC converter cannot be preprocessed and judged compared with the prior art. The optocoupler feedback circuit of the present invention includes an optocoupler U1, the 1 pin of the comparator U3A is connected to the 3 pin of the optocoupler U1, the 1 pin of the optocoupler U1 is connected to the output voltage in series through the resistor R5, and the optocoupler U1 The 5 pins and 6 pins are connected in parallel and then connected to the voltage regulator chip mode port TR through the resistor R11, the ground wire GND1 of the 4 pin of the optocoupler U1, and the power supply voltage VCC are connected in series with the resistor R1 and the resistor R13 in sequence, and then the ground wire GND1, The regulator chip mode port TR is parallel connected between the resistor R1 and the resistor R13. The invention can judge and trigger the working mode of the voltage stabilizing chip according to the output voltage.

The invention discloses a four-wheeled agricultural vehicle comprising a vehicle head (1) and a vehicle body (2), wherein the vehicle head (1) and the vehicle body (2) are mutually connected; the vehicle head (1) is wider than the vehicle body (2), and is provided with a front axle (3) therein; front wheels (4) are arranged at two ends of the front axle (3); a rear axle (5) is arranged in the vehicle body (2); rear wheels (6) are arranged at two ends of the rear axle (5); rearview mirrors (7) are arranged on two sides of the vehicle head (1); auxiliary reflectors (8) are arranged on two sides of the vehicle body (2). By changing sizes of the vehicle head and the vehicle body as well as setting the auxiliary reflectors, the four-wheeled agricultural vehicle disclosed by the invention enables drivers to clearly see situations nearby the rear wheels, so that the agricultural vehicle has the advantages of safe use, low hidden trouble in driving and the like.