39results about How to "Safe crossing" patented technology

The invention discloses a road section pedestrian street-crossing sensing control method based on the number of pedestrians to cross a street. The method comprises the following steps of: (1) acquiring control threshold information; (2) acquiring a video image in real time and extracting the information about the number of the pedestrians to cross the street; and (3) judging, and controlling switching of signal lights. By adoption of the road section pedestrian street-crossing sensing control method, the actual traffic condition in urban and rural road environments is fully considered, the pedestrians to cross the street serve as top-priority objects, the information about the number of the pedestrians to cross a sidewalk is acquired by computer vision detection, and the signal lights areswitched according to the information, so that the pedestrians can safely cross the street, time and space resources of road traffic are reasonably excavated, and the traffic operating efficiency in the urban and rural road environments is effectively improved. Compared with the prior art for vehicle identification and pedestrian identification, the method has the advantages of high detection identification accuracy rate and high control reliability.

This invention discloses a method for handling failure of alternating current side of invertor side of mixed-type direct current transmission system. The method is characterized by comprising the following steps: steps1, detect whether a serious failure is happened in an alternating current network of the invertor side; if so, enter the step 2; the serious failure means that the failure happened in the network of the invertor side makes the positive sequence voltage of the connection part of an inversion converter station and the alternating current network less than 0.6 time of a rated voltage; step2, shift the phase of a rectification converter station to an inversion state; in other words, adjust the trigger angle of a converter valve of a thyristor of the rectifier side to be greater than 90 degrees; and step 3, the voltage source type converter of the inversion converter station triggers a single-phase valve in three phases to run straightly and simultaneously locks the other two phases of valves. By adoption of this method, the mixed-type direct current transmission system can safely and reliably pass through the serious failure of the alternating current network of the invertor side; the overvoltage of the inner capacitor of the voltage source type converter and the overvoltage of the direct current side can be limited; and after the failure of alternating current network is cleared, the mixed-type direct current transmission system can be resumed quickly and steadily.

The invention discloses a cooperative control method of a left-opened-door bus special phase setting and social traffic flow, which comprises the following steps: setting a bus station and a stereo facility which help pedestrians to cross a street; detecting a bus; determining the running time of the bus; determining a signal phase of the bus which drives through an intersection; and setting the bus special phase and a cooperative control plan. According to the invention, the bus stations in two directions are combined and placed at a median strip of the intersection, so that not only the land is saved, but also the bus station points are easier to recognize, and meanwhile, a new concept for planning and constructing of a public transit network is provided, that is, the public transit network is connected based on the bus stations arranged at intersections. With the adoption of the method, the situation that the bus does not stop at an intersection without a bus station while stops at an intersection with a bus station can be basically realized, so that passengers waiting for a long time at an intersection with a bus station can be avoided, thereby shortening the whole driving time of the bus and improving the whole operation efficiency of the bus system. Moreover, the method is functioned as the cooperation of the social traffic flow, so that the passing efficiency of the whole intersections is guaranteed.

The invention discloses a CBD (central business district) signalized intersection pedestrian crossing traffic behavior supervision system. The system disclosed by the invention starts from the red light running psychology of pedestrians, aims to ensure the pedestrian crossing safety, adopts a thought of combining facility guidance and regulation breaking punishment, and develops the CBD signalized intersection pedestrian crossing traffic behavior supervision system which is formed by an intersection pedestrian supervision monitoring device and a background control center monitoring management platform. The system integrates supervision, detection, evidence collection, alarming, statistics and face recognition, realizes functions of signalized intersection pedestrian red light running supervision, regulation breaking record statistics, system equipment maintenance, real-time monitoring management and the like, and can provide partial basic data for improving and designing an intersection. A more importance value lies in that the system carries out supervision and persuasion on pedestrian behaviors, evidence collection can be performed effectively, and punishment is carried out by being matched with relevant laws, thereby being capable of gradually reducing red light running behaviors of the pedestrians, significantly improving the traffic order of a CBD signalized intersection, and reducing occurrence of traffic safety accidents.

The invention relates to a design method for cooperating the street crossing of opposite-angle pedestrians and the left turning of a motor vehicle at an intersection. According to the method, firstly, traffic island chamfer parts (2) of angle-turning traffic islands (1) in the opposite-angle direction of the intersection are connected with each other, and two zebra crossings (5) with the opposite angles being crossed are arranged so that the opposite-angle pedestrians can pass through; a central pedestrian safety island (7) is arranged in the center of the intersection, and a left turning guide line (6) of the motor vehicle is arranged in the intersection, so as to ensure the separation of motor vehicles and non-motor vehicles at the intersection and guarantee the secondary opposite-angle street crossing safety of the pedestrians; meanwhile, pedestrian street-crossing traffic lights (4) in the opposite-angle direction are arranged on the angle-turning traffic islands (1) at the intersection, so that the street crossing of the opposite-angle pedestrians and the left-turning street crossing of the motor vehicles are controlled together with signal phases cooperatively. According to the design method, the effective road passing-through area of the intersection at a left-turning phase can be effectively enlarged, the delay of the street crossing of the opposite-angle pedestrians can be reduced, and the traffic conflict can be decreased. The design method is suitable for the intersection of an urban road which is large in the flow of the left-turning motor vehicles, large in the demand of opposite-angle street crossing and lower in the speed of the vehicles.

The invention relates to an automobile active anti-collision virtual zebra crossing control system used for assisting the pedestrians to cross the street. The control system comprises position information acquisition equipment, vehicle operation state sensing equipment which is used for judging the vehicle driving state, master control equipment which acts as a central processor, laser lamp virtual zebra crossing projection equipment which is installed on the front end of an automobile bumper and V2P information transmission equipment which is installed on the motor vehicle. According to the control system, the defects of performing data acquisition by relying on the pedestrian video detection technology in the prior art can be compensated, and the zebra crossing is formed by projection ofthe laser transmission device arranged on the front end of the motor vehicle to the road surface to prompt the pedestrians to cross the street in priority so that the avoidance information of the motor vehicle can be transmitted to the pedestrians in real time and the pedestrians cross the street on the virtual zebra crossing and thus the street crossing safety can be guaranteed for the pedestrians.

The invention relates to a system and a method for coordinating and controlling a pedestrian crosswalk under a bus special passage condition. The system comprises a vehicle detecting system, a pedestrian crosswalk detecting subsystem, a signal processing subsystem, a traffic signal control subsystem and a cross signal light, wherein the vehicle detecting system is used for detecting whether vehicles arrive at the cross or not, and transmitting information to the signal processing subsystem; the pedestrian crosswalk detecting subsystem is used for detecting whether pedestrians are at the cross, and transmitting the information to the signal processing subsystem; the signal processing subsystem is used for receiving the information transmitted by the vehicle detecting system and the pedestrian crosswalk detecting subsystem, controlling to give a green light to the vehicles or the pedestrians by comparing the current time with a preset time, and transmitting a result to the traffic signal control subsystem; the traffic signal control subsystem is used for receiving a signal control scheme generated by the signal processing subsystem so as to control the cross signal light; and the cross signal light is used for achieving the normal traffic order of the cross through the alternant twinkling of the green lights and the red lights. The system and the method can effectively achieve the equalization of the pedestrian crosswalk and the motor vehicle running efficiency on the road section.

The invention discloses a pedestrian crossing warning system based on a mobile phone APP, which is designed for pedestrian crossing warning at a two-phase signal control intersection without secondarycrossing facilities. The system is composed of a traffic signal light case and a ground inductance coil detection device arranged on a road site, and a mobile phone APP arranged in the mobile phonesof pedestrians. The traffic signal light case includes traffic signal lights, a traffic signal acquisition module, a traffic signal control module, a visual detection module and a first wireless communication module. The ground induction coil detection device includes a second wireless communication module and a ground induction coil. The mobile phone APP includes a mobile phone communication module, a mobile phone GPS module, a mobile phone central processing module and a mobile phone voice module. The pedestrian crossing condition can be judged by collecting the current traffic flow condition. Pedestrians are warned so that the safety consciousness of pedestrians is improved, the dangerous situation of pedestrians during street crossing is avoided, and traffic congestion is alleviated.

[OBJECT] To clearly awaken a pedestrian who crosses in front of an automobile to the fact that an automobile driver is depressing a brake pedal.

[ACHIEVING MEANS] The invention is a display device of operation state of automobile brake that includes a brake operation detection switch (Bp) and a light emitting device (2). The brake operation detection switch (Bp) is actuated by depressing a brake pedal (3) and outputs a brake actuating signal to the light emitting device (2). The light emitting device (2) is disposed on an undersurface of a front of an automobile body (1), and emits diffused light in a fixed range of the front of the automobile body by receiving an input of the brake actuating signal so that the diffused light forms an optical projection image (Pi) on a road within a range of a shadow of the automobile body (1) as a caution arousing sign. Apedestrian looks at the opticalprojection image (Pi) displayed in the shadow (1a) of the automobile body (1), and ascertains that a brake operation is being performed, thus enabling the pedestrian to cross a pedestrian crossing at ease.

A pedestrian motorist assistance device is configured to be mounted on a vehicle so as to be visible from at least a front part thereof. It is formed as a dual-lens light beacon assembly having a first light beacon part to be electrically coupled to a first sensor for a brake mechanism to provide a first color (red) light when the brake mechanism is being operated by the driver, and a second light beacon part to be electrically coupled to a second sensor for a gas-pedal mechanism to provide a second color (green) light when the gas-pedal mechanism is being operated by the driver. The light beacon assembly provides a positive indication to a pedestrian that the driver has seen the pedestrian and is acting to slow down or stop, so that the pedestrian can be assured of crossing a street in front of the vehicle safely.

The invention relates to a construction method for a high-speed railway double-track tunnel penetrating through a vertical mud gushing karst cave. According to a reinforcing system, through the structures of a protective arch, a concrete layer, a flexible buffer layer and a protective layer at the top of the tunnel at the karst cave, the problems that mud is not poured downwards from the top, and water is prevented can be solved, and through the structures of an anchor cable, a ring beam and a foundation cushion layer at the bottom of the tunnel, the problem that mud is not gushed upwards can be solved; and three arch bridges are erected in the middle, bearing vertical walls are additionally arranged under the arch bridges, the stability of the arch bridges is ensured, ballastless tracks are safely laid on the bridges, and the railway safely passes through the mud gushing karst cave.

The invention provides a control method for barrier-free crossing of a split-level crane. The split-level crane, a local field bus, a wireless communication module and a monitoring terminal are used in the control method. The control method for barrier-free crossing of the split-level crane comprises the following steps: acquiring the local position information, which is acquired by the local field bus, of a local crane, wherein the local position information comprises the position information of a local crane trolley and the position information of a trolley lifting point; acquiring the remote position information, which is received by the wireless communication module, of a remote crane, wherein the remote position information comprises the position information of a remote crane trolleyand the position information of a trolley lifting point; calculating an optimal safe crossing scheme according to the acquired local position information and the acquired remote position information;and controlling the split-level crane to carry out crossing according to the calculated safe crossing scheme. By the technical scheme, the optimal crossing route is planned automatically, potential safety hazards are reduced effectively, and the production efficiency is improved.

The invention relates to the technical field of coal mine machinery, in particular to a discharge baffle for a passable loader, which is used for the discharge chute of the loader in underground coal mines. At present, during the underground maintenance of well workers, most of the personnel use the ladder to climb over the loader to enter the coal wall side of the working face. When they climb over, they need to climb to the top of the tank body, which is very inconvenient; When climbing, there are certain safety hazards. The unloading baffle of the passable reloading machine is composed of a fixed baffle, a movable baffle, a buffer support rod and several pin shafts. When the reloading machine is working normally, it is used as a traditional discharge chute baffle; A bridge with a very low height can be constructed, which is convenient for personnel or equipment to cross the transfer machine safely and quickly. The beneficial effects of the invention are: simple structure, convenient operation, effectively improving equipment safety and humanization.

The invention discloses a non-motor vehicle street-crossing road right negotiation system under an automatic driving background, which comprises an environment sensing module, a decision module, an output module and a feedback module, and is characterized in that the environment sensing module comprises an automatic driving vehicle-mounted monitoring module, a non-motor vehicle-mounted monitoring module and a roadside monitoring module; the output module comprises an automatic driving vehicle output module and a non-motor vehicle output module, and when an automatic driving vehicle and a non-motor vehicle meet at a street corner, the automatic driving vehicle-mounted monitoring module obtains the speed, acceleration and driving direction information of the automatic driving vehicle and outputs the information to the decision module; the non-motor vehicle-mounted monitoring module obtains the speed, acceleration and driving direction information of a non-motor vehicle and outputs the information to the decision module, the decision module processes the received information and generates and outputs a corresponding decision signal, and the automatic driving vehicle output module executes the decision signal from the decision module; the method has the advantages that the non-motor vehicle crossing safety and the automatic driving vehicle passing efficiency can be considered.