275 results about "Heavy traffic" patented technology

The invention concerns a system for automatic following guidance, particularly for heavy-traffic automatic following guidance, of a motor vehicle (1), designed to ease the burden on the driver in heavy-traffic situations both by taking over lateral guidance by means of an automatic steering regulation system and by maintaining a set distance from a leading vehicle. The latter function requires an adaptive cruise and braking regulation system with "stop" and "go" function. According to the invention, selection and decision means (5, 6, 7, 8, 9) are provided that select both the regulating parameters and the types of controllers [sic], e.g., following guidance of the motor vehicle (1) on the basis of lane markings recognized by means of a video camera or on the basis of a recognized leading vehicle. The system is divided into hierarchical levels I-IV, the driver always being in the monitoring and adaptation loop assigned to the top level IV of the hierarchy, so that he has the highest priority and can override the system at any time.

The present invention discloses a method for implementing relay in a wireless communication network, which method comprises: determining that a present-stage backhaul window for use in the backhaul of a present-stage service has started; and switching from a first frequency to a second frequency to complete the backhaul of the present-stage service. The present invention further discloses a repeater for implementing relay in a wireless communication network, which repeater comprises: means for determining that a present-stage backhaul window for use in the backhaul of a present-stage service has started; and means for switching from a first frequency to a second frequency to complete the backhaul of the present-stage service. According to the present invention, each repeater has its own independent frame whose length is the same as the length of that of the base station. Therefore, the present invention is suitable for network applications with high density and heavy traffic.

The stabilizer works with any conventional cruise control (CC) and permits automatic CC in slower heavy traffic as it eliminates laborious frequent manual actuation of CC control buttons otherwise needed in such heavy traffic. More frequent automatic CC operation at slower speeds increases fuel efficiency. When the vehicle maintains a speed above a minimum speed and exceeds a brief preset period, the speed stabilizer sets the cruise control at that speed. When the cruise control is thus engaged, the driver's foot can move the accelerator pedal within a small tolerance range without canceling the cruise control. When the pedal is close to the bounds of the tolerance range, a warning signal such as a flashing LED display, is generated by the speed stabilizer to inform the driver that further movement of the pedal will cause acceleration / deceleration, automatically canceling cruise control. Actuation of conventional CC control buttons restores conventional CC.

The invention discloses a road cleaning system and method through an intelligent robot for mainly solving the problem of frequent happening of accidents of environmental sanitation workers due to large effects of prior road environmental sanitation cleaning systems on traffic. The system comprises a controller (2), a binocular camera (7), a central processor (3), a supersonic distance measurement unit (6), a cleaning mechanism (4) and a moving mechanism (5). The controller (2) reads data of the supersonic distance measurement unit (6) and uploads the encoded data to the central processor (3); the central processor (3) reads images shot by the binocular camera (7), signal lamp states of a road section where the central processor (3) is in and the data of the supersonic distance measurement unit (6), performs recognition processing to determine the moving direction and cleaning actions of the system and transmits the moving direction and cleaning actions to the controller (2); and the controller (2) controls the moving mechanism (5) to drive the whole system to move towards the garbage direction and the cleaning mechanism (4) to clean cleaning mechanism (4). By means of the intelligent robot road cleaning system and cleaning method, roads can be cleaned automatically and actively, environmental sanitation workers can be replaced or assisted to check and study roads for cleaning in heavy-traffic or high-vehicle-sapped dangerous sections.

The invention discloses an intelligent traffic light system based on deep learning and a method for controlling a traffic light. The intelligent traffic light system comprises a data collecting and processing module, a deep learning module and a traffic light central controlling module, wherein the data collecting and processing module is used for collecting images of an intersection corresponding to the traffic light in real time, and identifying vehicle model information, a traffic volume, the vehicle queue length and the corresponding passing time of vehicles; the deep learning module comprises a neural network which can simulate a human brain for analysis and learning, and a control model, and the control model inputs the vehicle model information, the traffic volume, the vehicle queue length and the corresponding passing time of the vehicles into the neural network for autonomous deep learning and forming the control model; the traffic light central controlling module is used for controlling the traffic light. According to the intelligent traffic light system based on deep learning, the control model which is formed through autonomous deep learning can calculate and control the duration of a green light after the next change of the traffic light according to the vehicle queue length at the intersection and the vehicle model information, and efficiently solve the problem of heavy traffic.

An air-conditioning system capable of reducing traffic of signals and effectively performing control and management operations without causing heavy traffic is obtained. In an air-conditioning system including one or more indoor units 200, one or more outdoor units 100, and a centralized control apparatus 300 and performing signal communication, a transmission relay 400 is provided between a first transmission line 500 to which the one or more outdoor units 100 and the centralized control apparatus 300 are connected and a second transmission line 510 to which one or more indoor units 200 constituting a group are connected, the transmission relay 400 relays a signal between the first transmission line 500 and the connected second transmission line 510. The transmission relay 400 further includes arithmetic processing means 430 for processing data included in the signal transmitted via the connected second transmission line 510, and data storage means 440 for storing data regarding the processing by the arithmetic processing means 430.

The invention relates to a concrete pavement material for heavy traffic roads and a preparation method thereof. The material is composed of a component A, a component B and a component C in a mass ratio of 1:(0.2-0.6):(4-8). The component A comprises the following components in parts by mass: 40-80 parts of epoxy resin, 0-20 parts of epoxy reactive diluent, 10-50 parts of elastic modifier, 0.2 part of defoaming agent and 0.2 part of dispersing agent. The component B comprises the following components in parts by mass: 100 parts of curing agent, 0-10 parts of curing accelerator and 1 part of coupling agent. The component C comprises the following components in parts by volume: 100 parts of fine stone, 30-300 parts of fine sand, 130-800 parts of waste rubber particle, 50-100 parts of waste rubber powder and 10-20 parts of crystal whisker. Compared with the prior art, the concrete pavement material for heavy traffic roads has the advantages of high strength, favorable durability, favorable roadability, energy saving, environment friendliness and the like, and is convenient for construction.

The invention discloses a high-modulus bituminous mixture additive and a preparation method thereof. The high-modulus bituminous mixture additive is composed of a modifying main agent, butadiene styrene rubber, polyethylene paraffin, a filling material, an anti-aging component, and a plasticizing component according to a mass percentage of 100:(10-30):(15-40):(40-80):(2-6):(5-20); wherein the modifying main agent consists of one or more components selected from waste PE, polypropylene, and EVA. The preparation method comprises the following steps: evenly mixing the modifying main agent, butadiene styrene rubber and polyethylene paraffin at a temperature of 160 to 190 DEG C, adding the filling material, anti-aging component and plasticizing component into the mixture, evenly mixing under a certain rotation speed, then extruding the mixture by a screw extruder, cooling at the room temperature, and finally cutting into particles. The high-modulus bituminous mixture additive is mainly applied to pavement projects such as new construction and reconstruction of high grade roads and heavy traffic roads, can improve the dynamic stability, static modulus, dynamic modulus and shearing resistant performance of bituminous mixture, thus prominently reduces the damages of rut, displacement, or the like, and can improve the low-temperature anti-cracking performance of high-modulus bituminous mixture at the same time.

The invention relates to road intersection traffic signal control, in particular to a multi-control target compound optimization method for traffic signals used in a road intersection. The method comprises the following steps that: 1, control targets of the traffic signals of a controlled road intersection are defined as a compound control target consisting of three single control targets, namely an average parking number, an average delay, and a queue length; and a control target value is minimized by optimizing; 2, when the controlled road intersection is in a light traffic state or an intermediate traffic state, the control targets are compounded; simultaneously the three single control targets, namely the average parting number, the average delay and the queue length are taken into consideration; and a compound target value is minimized by optimizing; and 3, when the controlled road intersection is in a heavy traffic state, the single control target, namely the queue length accounts for all weight; and the compound control target equals to the single control target, namely the queue length. In the method, control target optimization combination is adopted, the applicability is high, the traffic control efficiency can be improved, and optimized control targets can automatically respond the rapid change of real-time traffic.

Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication protocol such that under heavy traffic conditions, a roaming terminal wishing to initiate communication may be required to determine whether the channel is clear by listening for an entire interpoll gap time. When a hidden terminal is communicating, the roaming terminal may conclude that the communication is taking place upon receiving a polling frame directed to the hidden terminal from the normally silent base station. Inherent redundancy techniques may be used with a spanning tree approach for determining the most efficient pathways from a source to a destination and ensuring that the network adapts to spatial changes or breakdowns within the network.

A system and method for locating optimal routes between source and destination nodes in a communications network, in particular, a wireless ad-hoc communications network by employing a link reliability algorithm that estimates the reliability of links between nodes using a prediction mechanism and a variable-weight filter. The prediction can be based on signal strength, signal-to-noise ratio or any statistic collected at the physical layer that is deemed representative of the quality of a link, and the weighting filter adjusts the predicted value based on the traffic conditions (e.g., idle, light traffic, moderate traffic or heavy traffic) being experienced by the nodes whose link quality is being estimated.

Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication protocol such that under heavy traffic conditions, a roaming terminal wishing to initiate communication may be required to determine whether the channel is clear by listening for an entire interpoll gap time. When a hidden terminal is communicating, the roaming terminal may conclude that the communication is taking place upon receiving a polling frame directed to the hidden terminal from the normally silent base station. Inherent redundancy techniques may be used with a spanning tree approach for determining the most efficient pathways from a source to a destination and ensuring that the network adapts to spatial changes or breakdowns within the network.

The invention provides SBS (stimulated brillouin scattering) modified asphalt and preparation method thereof, belonging to the technical field of road materials. The method comprises the following steps of: by utilizing heavy traffic paving asphalt as a raw material, melting and heating the heavy traffic paving asphalt to 180-200 DEG C, and then, adding an SBS modifier, three line cutting furfural extract oil and polyphosphoric acid into the smelted heavy traffic paving asphalt, shearing, adding a stabilizer, developing and stirring to prepare the SBS modified asphalt. According to the preparation method, the SBS modifier and the polyphosphoric acid are added to modify the heavy traffic paving asphalt, namely, the polyphosphoric acid substitutes a part of SBS modifier, so that the addition dosage of the SBS modifier can be reduced under a consistent part by weight of the heavy traffic paving asphalt, the addition dosage of the SBS modifier can be reduced for about 1-2%, the polyphosphoric acid is added to change the structure of the modified asphalt, the softening point of the prepared modified asphalt is higher than 80 DEG C, and other performance indexes meet related standards for different grades of SBS modified asphalt by the Ministry of transportation. The technique is simple, convenient to operate and suitable for industrial production.

The invention discloses a hanger articulated bridge inspection vehicle, belonging to bridge maintenance and construction equipment. The hanger articulated bridge inspection vehicle comprises a frame chassis (21), a suspension arm is a C-type hanger (25), the frame chassis (21) is articulated with the lower end of a pillar (23) by a longitudinal axis hinge (22) and a longitudinal axis, the upper end of the pillar (23) is articulated with the protruded end of an upper cross beam of the C-type hanger (25) by a transverse axis hinge (24) and a transverse axis, or the frame chassis (21) is articulated with the protruded end of the upper cross beam of the C-type hanger (25) by the longitudinal axis hinge (22) and the longitudinal axis, and the protruded end of a lower cross beam of the C-type hanger (25) is at least provided with a fixed point of a lifting rope (26) or a lifting rope extending-retracting device. According to the invention, the pulling force of the lifting rope (26) on an inspection platform (5) can be directly transferred to a bridge floor (2), therefore, the vehicle disclosed by the invention is small in overturning moment, light in structure and convenient to assemble and use, and can be erected on sidewalks on both sides of a bridge, so that the vehicle is especially suitable to be applied to the bottom detection and maintenance engineering of heavy traffic bridges.

The invention discloses a construction method for reinforcing soft formation in shield construction, adopting a reinforcement mode which uses plain continuous walls as the major and jet grouting piles as the auxiliary; as the plain continuous wall is adopted in the invention, with partial support, the plain continuous wall can withstand external soil-water pressure to ensure the stability of a working face, and tunnel portals can be broken down in advance before launching shield construction to prevent confliction with the shield assembly and debugging; the bulk breaking and construction can be safely and quickly carried out on a connection access; the construction process is simplified; the requirements on plain continuous wall are relatively simple, joints do not need to be specifically made, then a pile jetting machine is adopted to punch continuously in the construction process; after the plain continuous wall is used for reinforcement, the reinforcement range is significantly reduced, particularly applicable for engineering sites with small construction sites, intensive underground pipelines, heavy traffic on the ground and near to the foundations of the buildings on the ground; the reinforcement cycle is shortened, the age for reaching required strength is short, and the cost of the entire end is relatively low.

The invention relates to a high efficiency resin fissures cementation glue for pitch and cement road surface fissures cementation. The fissures cementation glue comprises the following components by weight percent: 10 to 15 percent of aromatic hydrocarbon, 3 to 10 percent of modifier, 1 to 3 percent of intensifier, 3 to 10 percent of cosolvent, 30 to 60 percent of resin mixture and 10 to 20 percent of heavy traffic pitch. The aromatic hydrocarbon is heated to 60 to 70 degrees centigrade, the modifier is added to be stirred for 30 minutes, the intensifier and the cosolvent are added slowly step by step, the resin and the pitch are added at last, the temperature is kept at 120 degrees centigrade for 30 minutes under stir circumstance, and then the resin fissures cementation glue with excellent performance can be obtained. In the invention, the aromatic hydrocarbon is used to form even mixture among the modifier, the resin and the pitch so that resin group and pitch group are bridged under the action of the modifier. When used on the road surface, the resin exerts the high bondability characteristic and the like. The modifier is used to improve the road performance, as improving softening point, low temperature ductility and the like. At the same time, the invention is good glue material.

The invention discloses a lead rail type dual-lead high speed railway system with cylindrical treads and independent wheels and a pavement type urban rail transportation system, wherein the lead rail type dual-lead high speed railway system with cylindrical treads and independent wheels is free from derail and rollover by strong wind, and the pavement type urban rail transportation system is a street pedestrian automatic line, solves heavy traffic problem in large cities by using a method for realizing massive industrial production by using automatic industrial production lines, has a distance of only 50-200 m between an entrance and an exit and a transport capacity equal to that of several subways, and is capable of realizing automatic transfer. According to the lead rail type dual-lead wheel rail transport system disclosed by the invention, leading directions and structures of wheel rails are changed since the railway is invented, so that a high speed railway which guarantees passenger-safety first has a structure which is different from that of a low speed railway, an original railway and a modern railway.

The invention relates to a taxi get-in station three-dimensional intelligent transportation system for a large traffic hinge. A passenger and taxi flow three-dimensional multi-exit manner is adopted; a shunt type traffic mode is respectively applied to a passenger flow and a taxi flow; an automatic detection and control device is respectively arranged at the exits of the passenger flow and the taxi flow so as to realize the automatic detection of the passenger flow and the taxi flow. Traffic light control and turnstile control are used for closed loop control so as to solve problem of the increasingly heavy traffic.

The invention discloses a high modulus asphalt mixture additive (Rohillard PAC-M), the formula is as follows: polyethylene PE: 20 to 70 percent, polyester PES: 0.9 to 10 percent, polypropylene PP: 15 to 60 percent, polyvinyl chloride PVC: 20 to 50 percent, chlorinated polypropylene PP-C: 5 to 10 percent, rubber: 3 to 5 percent, asphalt: 1 to 6 percent, cellulose: 1 to 4.5 percent and auxiliary agent: 0.1 to 0.5 percent. The product is characterized in that the polymerization temperature is T, T is not less than 130 DEG C and not more than 190 DEG C, and the particle size d of the product is is not less than 1mm and not more than 6mm, the particles are granular (90 percent of the product). The color / shape of the product is dark brown. The high modulus asphalt mixture additive is mainly applied in the new construction and the overhaul of high-grade highways, heavy traffic roads and transportation main trunk line roads, as well as the curing and other road projects. The high modulus asphalt mixture additive is mainly characterized in that: the high modulus asphalt mixture additive has great advantages of high-temperature rut resistance, low-temperature cracking resistance, prevention of water damage and durability.

The invention relates to a traffic signal control system, in particular to a multiple key intersection optimization technology applied in the traffic signal control system for a regional road network. According to the technical proposal of the invention, the optimization technology comprises: a. divide the intersection traffic into three status comprising light traffic, medium traffic and heavy traffic; b. determine a public cycle of a sub-area according to a key intersection group formed by a plurality of intersections with high traffic saturation degree; in calculating the public cycle under coordinated control in the sub-area, conduct automatic sorting of the saturation degree of all the intersections under control in the sub-area in each time section; select a plurality of intersections with top ranking into the key intersection group; c. select sample volume and comprehensively consider the representativeness of sample and calculate the workload. Therefore, the invention is able to resolve the problem of poor adaptability and low efficiency in the single key intersection optimization technology of existing traffic signal control system.

The invention relates to no halogen type road using inflaming retarding asphalt whose components part by weight are as follows: heavy traffic road petroleum asphalt 50-70, melamine phosphate 9-15, zinc borate 2-7, antimony trioxide 2-7, magnesium hydroxide 4-10, aluminum hydroxide 4-10, tempering agent 2-3.5, modifier 0.5-1.5, coupling agent 0.3-0.8. While burning it has high oxygen index to form stable charring layer to arise self extinguishing, little lamp black and no halogen hydride harmful gas to reduce environment pollution. Thus it has wide application prospect, good socioeconomic performance. The preparing method is simple, effective, economic, convenient, and widely used.

The invention relates to high-performance modified asphalt. The high-performance modified asphalt is prepared from the following ingredients: asphalt, thermoplastic rubber, glue powder, an additive and a stabilizer, wherein the asphalt is heavy-traffic-road petroleum asphalt or cycloalkyl petroleum asphalt, the thermoplastic rubber is styrene-isoprene-styrene block copolymer (SIS) or styrene-butadiene-styrene (SBS), the glue powder is rubber powder which is formed through grinding waste and old tires prepared through normal temperature methods, the additive is volcanic ash or silicon powder or fly ash, and the stabilizer is rosin or rosin resin. The high-performance modified asphalt has better high-temperature stability, the softening point capable of reaching above 80 DEG C, better low-temperature stability, the brittle point being below -30 DEG C, relatively high elasticity, the elasticity recovery reaching over 90% and better adhesivity reaching over the level IV. The waste of energy and resources is reduced through using industrial and domestic wastes as much as possible, so that the preparation method has the advantages of energy saving, emission reduction, simple production process and low cost.

A method and system for assigning unique words in an SDMA (spatial division multiple access) communication system is provided. A network management system logically arranges cell stations into clusters of stations, and monitors for a heavy traffic condition. Responsive to determining that a heavy traffic condition exists, the network management system may 1) redistribute unique words within a single cluster; 2) move one or more cell stations from a busy cluster to a less busy cluster; or 3) create a new cluster, and move cells from one or more busy cluster into the new cluster. In this way, the communication system continually adapts so that more unique words are made available at cell stations having heavier communication demands.

The invention discloses a rubber plasticizing homogenizing agent and a preparation method thereof. The method comprises the following steps: reacting 70-100 parts of heavy traffic petroleum asphalt, 0-30 parts of optional hydrocarbon compound and derivatives thereof and 0.1-9 parts of catalyst with modifier at 90-180 DEG C, keeping the reaction at 100-180 DEG C for 0.5-3 hours, and carrying out vacuum distillation until the softening point of the product is 80-130 DEG C, thereby obtaining the rubber homogenizing agent. By modifying the heavy traffic petroleum asphalt and hydrocarbon compound and derivatives thereof with the modifier, the preparation method disclosed by the invention obviously lowers the content of cancerigenic polycyclic aromatic hydrocarbons, and overcomes the defects of high bubbling tendency and kettle overflow in production in the prior art, thereby enhancing the production safety. The rubber plasticizing homogenizing agent disclosed by the invention can mix the rubber materials with different polarities and different viscosities more homogeneously and sufficiently, and is beneficial to powder dispersion, so that the rubber materials in different batches have stable and homogeneous quality.

A system and method to provide a user with a requisite receiving device (e.g., PDA, cell telephone) with the ability to record contact information, no matter how lengthy, from an interactive advertisement for storage and later use, or, at the user's option, to obtain the information at his or her convenience even at the location of the advertisement. The invention can work accurately in any environment, including those regions where there might be heavy traffic or congestion, and a plurality of interaction signs or posters can readily interface with the recipient's device. However, an important feature of the present invention is that the user can choose to only accept that contact information that is of interest to him or her, and does not have to automatically record and / or interact with any transmitter just because it is in the sphere of influence of the receiving device.

The invention discloses high modulus asphaltic concrete and a preparation method thereof. The high modulus asphaltic concrete primarily consists of aggregate, asphalt, powdered ore and additive. In the powdered ore, asphalt accounts for 1.0 to 1.4 by weight; the additive is 0.5 to 0.8 percent of the high modulus asphalt concrete by weight. In the preparation method, the additive is added to the aggregate at the temperature of 180 to 190 DEG C, and the mixture of the additive and the aggregate is beaten in dry state for 13 to 17 seconds; hot liquid asphalt is added immediately and the powdered ore is added; the mixture is beaten for 45 to 50 seconds at the temperature of 165 DEG C to 175 DEG C. All of the road performance indices of the high modulus asphalt concrete reach the state codes and standards. In addition, the high modulus asphaltic concrete has good mechanical property, which can meet the requirements of heavy traffic of speedways and high temperature resistant tracks.

The invention relates to a colored asphalt cementing material suitable for heavy traffic and a preparation method thereof. The colored asphalt cementing material is prepared from rubber oil, petroleum resin, SBS (Styrene Butadiene Styrene) and a modifier, wherein by metering according to 100 percent of the content sum of the rubber oil, the petroleum resin and the SBS in percentage by weight, the content of the rubber oil is 37 to 50 weight percent, the content of the petroleum resin is 35 to 55 weight percent, the content of the SBS is 8 to 12 weight percent, the modifier accounts for 2 to 3.5 weight percent of the sum of the rubber oil, the petroleum resin and the SBS, and the modifier is prepared from SBR (Styrene Butadiene Rubber), polyolefin type plastic, polyester type plastic and a coupling agent. The colored asphalt cementing material disclosed by the invention and a mixed material can be used for pavement of a heavy traffic road, and the colored asphalt cementing material is simple in formula and convenient in preparation.

A method for automatically prompting a detour is disclosed. When a user drives slowly because of heavy traffic, a navigation device automatically prompts the user to tale a detour. The method includes the following steps. First, the navigation device calculates its moving speed according to its navigation signal. Then, the navigation device begins to count the time when the moving speed is smaller than a predetermined speed. When the moving speed is continuously smaller than the predetermined speed and the counted time exceeds a predetermined time, the navigation device prompts a message asking whether to plan a new route.

The invention discloses a safe driving assisting device of an electric bicycle. The device comprises a middle support, support wheels, and a traction component, a first pedal component and a second pedal component for driving and controlling the middle support and the support wheels to swing. After the device is added on a traditional pedal type electric bicycle, corresponding technical effects can be achieved; firstly, a rider can conveniently finish related actions of parking and starting in the pedal area of a bicycle without stretching two feet to the ground for supporting the bicycle, so that the rider needs not worry that shoes and trouser legs may be wetted by rain and water flowing down along a rain cape when riding the bicycle in rainy days, in particular people going to work without clothes drying, changing and washing conditions; when the rider rides the bicycle on a heavy traffic road section, two feet are prone to suffer rolling of wheels of vehicles coming and going on two sides, and the consequences are unbearable to contemplate. Then, under some conditions, such as tire puncture, the bicycle can be slowly pushed with the assistance of two support wheels, so that the convenience is provided, and tires and steel rings can be protected.

The invention provides a method for replacing the original pile foundation of a building during construction of track traffic or tunnels. In the method, a plate-type extended foundation is added along the orientation of the original pile foundation under the structure of the building, and is used to support the load that is supported by the original pile foundation. The method provided by the invention has little influence on the surrounding environment and the traffic. The method provided by the invention has more advantages in central city zones with heavy traffic in defect of open area, where temporary bridges can not be established. The construction period is short. The available parts of the prior bridges can be fully used. The areas of the foundations of bridges and the foundations of tunnels to be stabilized are overlapped and stabilized synchronously, thus saving the construction cost. Few or no waste is produced, and the method is remarkably friendly to the environment.