40 results about "Pavement management" patented technology

Mobile Agent-based wireless sensor networks distributed management approach relates to a wireless sensor network management methods, mainly use the distributed computing technology to solve the wireless sensor network monitoring and control problems, according to the specific application to divide wireless sensor networks regional management point to the management of domain, Pavement Management Domain and fencing management domain, the form of hardware, compared to the wireless sensor network nodes are generally more adequate resources Mobile Agent wireless sensor networks deployed in these regions, in the specific application of wireless sensor networks can be formed in the operation of the dynamic management of mobile networks to provide wireless - sessile continuous or on-demand network monitoring and control services. The invention realize wireless sensor network applications and management separation of the distribution and management, it is convenient and flexible to manage systems and wireless sensor networks scale of the complexity of the application and user needs change, thereby reducing the wireless sensor network system workload.

The AirScene™ Pavement Management System of the present invention automatically tracks data required to determine various factors in an assessment of current and future pavement maintenance needs and utilizes this data to quantify the pavement damage caused by each individual aircraft movement and thus compute pavement condition based on an initial survey and the calculations of accrued damage over time. This information can be displayed through AirScene™ in the form of tables, graphs, or graphically represented on an airport diagram showing present conditions, rates of accruing damage, and future wear rates and areas. The system draws on the data from the AirScene™ Data Warehouse (ADW), a single repository for all the information acquired from a number of different sources. These data include: Aircraft or vehicle type (wheel layout, weight, vehicle specific parameters, and the like), Aircraft or vehicle location (ground track, position, gate used, and the like), Aircraft or vehicle dynamics (velocity, acceleration, take off, touchdown, and the like), Aircraft or vehicle actual weight (cargo load, fuel load, and the like), as well as Future operational data (flight schedules, increasing flight loads and demand, and the like).

A road surface management system is capable of detecting road surface conditions that tend to damage dump trucks and displaying the positions of such road surfaces. When the traveling speed of the dump truck is higher than or equal to a preset threshold value, the server judges whether or not each of the pressures of suspensions of the dump truck detected by pressure sensors is within a reference range which has been set corresponding to each suspension. The server judges that the road surface at the position of a dump truck is in a poor condition if one of the pressures of the four suspensions of the dump truck is judged to be outside the reference range and the remaining three pressures are judged to be within the reference range. The positions of the road surfaces judged to be in the poor condition are displayed on an indicator.

The AirScene™ Pavement Management System of the present invention automatically tracks data required to determine various factors in an assessment of current and future pavement maintenance needs and utilizes this data to quantify the pavement damage caused by each individual aircraft movement and thus compute pavement condition based on an initial survey and the calculations of accrued damage over time. This information can be displayed through AirScene™ in the form of tables, graphs, or graphically represented on an airport diagram showing present conditions, rates of accruing damage, and future wear rates and areas. The system draws on the data from the AirScene™ Data Warehouse (ADW), a single repository for all the information acquired from a number of different sources. These data include: Aircraft or vehicle type (wheel layout, weight, vehicle specific parameters, and the like), Aircraft or vehicle location (ground track, position, gate used, and the like), Aircraft or vehicle dynamics (velocity, acceleration, take off, touchdown, and the like), Aircraft or vehicle actual weight (cargo load, fuel load, and the like), as well as Future operational data (flight schedules, increasing flight loads and demand, and the like).

The invention discloses an indoor test estimation method for estimating a bituminous pavement rut. In the method, an indoor test method, a numerical analysis method and weather and traffic survey data are fully utilized, four factors, namely material parameters, deformation rules of materials, temperature conditions and traffic conditions, determining a development rule of the bituminous pavement rut are organically combined, and the depth of the bituminous pavement rut is accurately estimated. By taking Fenguan Highway in Jiangsu province as an example, the specific implementation mode is illustrated. The invention expands the conventional bituminous pavement rut estimation method, can provide scientific decision for pavement management and maintenance department, and has realistic significance of reducing the pavement test cost and maintenance cost.

The invention relates to an antifreeze asphalt mixture and a preparation method thereof and belongs to the technical field of road construction. A calcium acetate melting agent is prepared by the aid of acetylene residues to be loaded on the surface of kieselguhr prior to being subjected to low surface hydrophobic treatment to obtain an antifreezing agent, pavement freezing point can be effectively lowered, icy pavement is prevented, long-term pavement antifreezing effect is achieved, maintenance cost of winter pavement management is lowered, releasing of the calcium acetate melting agent can be effectively alleviated through the kieselguhr, and the antifreezing agent can be evenly released within the range of pavement service life. Basic asphalt aggregate sandstone is prepared as required, rubber particles are tightly embedded between the mixture and the rubber particles as well as the stone material, pavement friction is enhanced, the mixture which is compressed is stable in structure, the rubber particles bear higher pressure, the antifreeze material cannot be destroyed during mixing of the asphalt mixture and paving of the asphalt pavement, and long-term antifreezing performance is achieved.

The invention relates to the field of park management, and provides an intelligent management system for parks. The system includes a road management unit, a safety warning unit, a parking managementunit, an access control unit, a building control unit, a wireless gateway, a central control center and a user terminal. The road management unit, the safety warning unit, the parking management unit,the access control unit, the building control unit and the user terminal are connected with the central control center through the wireless gateway. The road management unit is used for monitoring the road traffic situation in a park in real time and managing the on-off of the street lights in the park. The safety warning unit is used for monitoring the environmental condition and construction progress of the park in real time. The intelligent management system for parks overcomes the shortcomings of the prior art, and is reasonable in design. By using the system, a whole construction site can be managed in a unified and standardized manner, convenience in use and management is brought to construction personnel, the lag of information caused by failure of intercommunication between systems is avoided, and emergencies in a park can be dealt with in time.

Provided is a road surface management system whereby the state of a road surface likely to cause damage to a dump truck can be sensed, and the position of the road surface can be displayed. When the travel speed of a dump truck (2) detected by a speed sensor (12) is equal to or greater than a preset threshold, a server (4) of an administrative bureau (3) determines that the dump truck (2) is traveling. With each position of the traveling dump truck (2), a determination is made as to whether or not the pressures of suspensions (18L, 18R, 19L, 19R) detected by pressure sensors (20A-20D) are respectively within corresponding set reference ranges. When it is determined that any one pressure of the four suspensions (18L, 18R, 19L, 19R) is outside of the reference range and the remaining three are within the reference ranges, the road surface in the corresponding position of the dump truck (2) is determined to be poor. The position of the road surface determined to be poor is displayed on a display unit (17B) or the like.

The invention relates to a freezing-proof bituminous mixture as well as a preparation method and a construction method thereof, and belongs to the field of engineering technology. According to the invention, Mafilon is added into a bituminous mixture, so that the problem that bituminous pavement freezes in winter is solved, and the freezing point of the frozen pavement can be lowered to relieve freezing of the pavement in winter. The preparation process of the freezing-proof bituminous mixture is simple and convenient, so that the service performance of the bituminous mixture is ensured, and the effect of reliving the freezing of the pavement is achieved. According to the invention, the freezing temperature of the pavement can be lowered to about -3 DEG C to -5 DEGC; a pavement of a place with large snowfall is more easily subjected to snow removal as compared with a common pavement, and a great quantity of human, material and financial resources are reduced; the mixture contains components for relieving freezing, so that the effect of preventing accidental freezing is achieved; the driving safety of a car on the pavement can be improved in winter, and traffic accidents are reduced; compared with the common method for removing ice through spilling salt and the like, the ice removing method adopting the bituminous mixture has the advantages that nearly no damage to the environment is caused, a pavement method for protecting ecology is realized, and the pollution to the environment is reduced; the cost for the management and maintenance of the pavement in winter is lowered, and the better economical efficiency is achieved.

The invention relates to a rubber particle asphalt pavement material and a method for paving the rubble particle asphalt road surface, in particular to an asphalt pavement material and a method for paving the asphalt road surface. The invention solves the problems that the prior asphalt road surface does not possess the capability of inhibiting condensation of ice and snow on the road surface or removing ice and snow; adopting other methods for removing snow on the road causes the problems of environmental pollution, low utilization rate of equipments, influence on traffic capacity of working road, high energy consumption, high cost, complex process and difficult maintenance. The rubber particle asphalt pavement material is prepared with 76.5 to 91.5 portions of ore aggregate, 2.5 to 7.5 portions of asphalt, 4 to 10 portions of mineral powder, and 2 to 6 portions of rubber articles by weight portions. The method for paving the road surface comprises that I. the ore aggregate, the asphalt, the mineral powder and the rubber particles are weighed; II. the mixture of the rubber particles and the asphalt is prepared; and III. the mixture of the rubber particles and the asphalt are stirred, paved and rolled. The road surface of the invention can effectively inhibit the condensation of ice and snow on the road surface, and facilitate the following mechanical snow removal as well as road surface management and maintenance. The invention has low cost in road pavement and improvement effects in service performance of the road.

An unattended commuting airfield pavement clearance management system and a control method are provided. The system comprises a central control module, a pavement management module and a clearance management module, wherein the central control module is a computer which is arranged in a control tower and is internally provided with a control program; the pavement management module comprises a self-walking type robot, a plurality of high-definition cameras, a plurality of robot charging piles and a plurality of liftable refuge boxes; the clearance management module comprises an unmanned aerial vehicle, a plurality of high-definition cameras, an air pressure box hypsometer, an unmanned aerial vehicle charging pile and an unmanned aerial vehicle hangar. According to the unattended commuting airfield pavement clearance management system and the control method, airfield pavement and clearance inspection management can be automatically carried out according to a setting procedure, and pavement damage, external invaded objects and periphery ultra-limiting obstacles are found in time and are automatically recorded, collected and reported, so that the number of commuting airfield workers is reduced and an airfield is unattended; the control method is scientific and reasonable, is simple and convenient to carry out and has high safety.

The invention discloses a coated long-acting anti-icing agent and a preparation method thereof. The raw material of the invention adopts large-grained salt, and the price is relatively low, which saves costs; the coated long-acting anti-icing agent obtained by the method of the present invention can During the preparation process, after being coated and coated with a modified salt storage carrier on the surface, the salt compound is slowly released, and the long-term performance of the anti-condensation point asphalt road surface admixture is improved. The snow-melting effect on the road surface can last for many years, greatly reducing the cost of road surface management and maintenance in winter; the method of the invention is simple in process, and the main equipment and raw materials used can be purchased in the market, and large-scale production can be realized.

The invention relates to a road surface management method and device, a storage medium and computer equipment. The road surface management method comprises the steps of obtaining road feature information of a target road; according to the road characteristic information, evaluating the pavement performance of the target road to obtain a pavement evaluation result; performing pavement performance prediction according to the pavement evaluation result to obtain a pavement performance prediction result; and determining a corresponding road pavement maintenance strategy according to the pavement performance prediction result. Pavement performance evaluation and pavement performance prediction are carried out on a target road according to road characteristic information; the corresponding maintenance strategy is formulated according to the pavement performance prediction result, so that the scientificity and reasonability of the maintenance strategy can be improved, and in addition, the purpose of preventing the pavement from being damaged can also be achieved by formulating the maintenance strategy according to the pavement performance prediction result.

The invention discloses an environment-friendly anti-freezing material and a method for preparing the same. The material mainly consists of formate, carbonate, citrate and binary carboxylate. The method for preparing the environment-friendly anti-freezing material includes steps: mixing the formate, the carbonate, the citrate and the binary carboxylate according to proportion, and stirring the formate, the carbonate, the citrate and the binary carboxylate for 10 to 30 minutes so that the formate, the carbonate, the citrate and the binary carboxylate are mixed uniformly to form mixture; spraying starch solution or sodium silicate solution with the mass ranging from 1% to 10% of that of the mixture into the mixture, simultaneously continuously stirring the solution and the mixture for 15 to 60 minutes, and leading generated particles out of a container; and drying and sieving the particles to obtain particles with the sizes ranging from 0.1mm to 5mm, and bagging and sealing the particles to obtain the environment-friendly anti-freezing material, wherein the concentration of the starch solution or the sodium silicate solution used as adhesive ranges from 1wt% to 2wt%. The anti-freezing material is added into an asphalt mixture to be laid on an upper surface layer of a pavement, various index performances of the pavement are stable, freezing of the pavement at the temperature ranging from 0 DEG C to minus 18 DEG C can be effectively prevented, the applicable temperature range is wide, sustainable time is long, a long-term benefit can be realized by means of one-step investment, winter pavement management and maintenance cost can be greatly reduced, and the material is environment-friendly and energy-saving.

The invention provides a method for predicting pavement performance on the basis of transport durations and traffic volumes. The method includes selecting local road segments as test sections; selecting random detection time; selecting appropriate detection indexes and corresponding equipment; selecting reasonable detection frequencies; acquiring data of various indexes of the pavement performance in the test sections according to the given detection time, the detection equipment and the detection frequencies; analyzing and processing the acquired data, fitting regression relational expressions of the various indexes, the transport durations and the traffic volumes and building pavement performance prediction models; inputting set durations or estimated traffic volumes into the models to obtain predicted values of the various indexes of the pavement performance. The method has the advantages that the test sections are locally detected at early stages, the data are processed at the early stages, the models are built at the early stages, and accordingly dependent on excessive pavement detection indexes at late stages can be prevented; only the transport durations and the traffic volumes need to be inputted into the models, accordingly, the pavement performance can be predicted, and the method can conveniently serve for pavement management, design and maintenance and repair.

Various embodiments of a system for monitoring drainage of a permeable pavement system are provided as well as various exemplary installation scenarios. In particular, embodiments of a permeable (or pervious) pavement management platform are disclosed herein. In embodiments, the pavement management platform provides a service that allows the user to determine vacuum maintenance needs for permeable (or pervious) pavement systems. Advantages of the platform include: subscription-based asset management platform as a service (PaaS), customized off-the-shelf water-level sensors, off-the-shelf tipping-bucket rain gauge, observation well installation consistent with industry standards, can be implemented in residential, commercial, municipal, county, and state systems, lithium-ion battery powered sensor, LoRA sensor to hub data transmission network, cellular data transmission from hub, electrical power for cellular data transmission hub (can be solar panel powered), real-time dashboarding of surface runoff storage, real-time dashboarding of ground water recharge rate, and permeability (clogging) threshold alerts, among others.

The invention discloses an asphalt aging performance prediction method based on isothermal thermal analysis kinetics, belongs to the technical field of road asphalt pavement durability, and solves problems that an asphalt aging process cannot be predicted accurately and more practical asphalt aging performance prediction cannot be provided for pavement management and maintenance work when attenuation of a macroscopic performance index of the asphalt is adopted to speculate a pavement performance degradation degree at present. The asphalt aging performance prediction method provided by the invention comprises the following steps: firstly, selecting an asphalt sample, testing with a thermal analyzer, simulating thermal-oxidative aging of the asphalt to obtain TG and DTG data and a char yieldof the asphalt; secondly, selecting a reaction mechanism function corresponding to the asphalt aging process according to a chemical structure, a functional group and thermal stability change of theasphalt aging process to establish an isothermal thermal analysis kinetics model of the asphalt; finally, using an aging-time equivalence principle to analyze equivalence of the asphalt aging processand time, calculating an isothermal aging shift factor by an Arrhenius equation to predict the asphalt aging performance, thereby providing a basis for decision-making of an asphalt pavement maintenance scheme.

An airport pavement management system comprises a service management module, a data service layer module, a business management module, a system management module, a source display module and an interface module. An airport pavement management method is further provided. The airport pavement management system changes a traditional extensive airport pavement source management method, information management and maintenance management tasks of airport resources are achieved through comprehensive uses of information technology, computer technology, virtual reality, software engineering and the like, a unified and intuitive platform is established to enable airport resource utilization rate to be largest as much as possible, working process is optimized, visualization, scientization and intelligent management of airport resource management are achieved, and scientific decision supports can be provided for airport management and related management departments. The airport pavement management system is further provided with an interface, and the airport pavement management system can be connected to each daily operation system of airports as an open platform.

The invention relates to a pavement crack disease detection system based on image processing. The device is composed of an on-line data acquisition system and an off-line data analysis system. The on-line data acquisition system is mainly composed of a pavement image acquisition system, a ground penetrating radar detection system, a laser detection system and a GPS (Global Positioning System). During detection, pavement images can be acquired through the image acquisition system, roadbed and pavement layer data is acquired through the ground penetrating radar detection system, and parameters, such as pavement deflection and flatness, are obtained through the laser detection system. The off-line data analysis system is mainly composed of a pavement image processing system, a roadbed disease analysis system, a roadbed and pavement management system and a roadbed and pavement information database. The two systems realize the detection tasks of pavement crack diseases and roadbed and pavement layer diseases; the roadbed and pavement management system realizes the summarizing and processing of the roadbed and pavement information as well as outputs roadbed and pavement condition reports and maintenance reports; and the roadbed and pavement information database serves as an organization and storage medium of the data.

The invention provides a road pavement management apparatus and method. The road pavement management apparatus comprises a data management module, a data processing module and a data analysis module. The data management module is used for pre-establishing a road electronic map, performing division and section number marking on a road in the road electronic map, importing a collected pavement image of each section of the road to a corresponding position of the road electronic map, and storing a repair record of each section of the road. The data processing module is used for calculating a pavement damage ratio and a pavement damage condition index of each section of the road, pre-establishing a damage type database of roads with all pavement types, extracting a damage feature of the road in each pavement image, and judging a damage type of each section of the road. The data analysis module is used for pre-storing a road pavement damage condition report template. According to the road pavement management apparatus and method, the specific geographic position of a damaged pavement can be determined, and the repair status of the damaged pavement can be followed, so that fine research on the damaged pavement is realized.

The invention discloses a sustained-release anti-freezing point asphalt pavement admixture and a preparation method thereof and belongs to the technical field of preparation and application of environmental-friendly snow-melting agents. The sustained-release anti-freezing point asphalt pavement admixture is prepared from the following components in percentage by mass: 35-45% of modified volcanic powder, 52-63% of a freezing point drop agent and 2-6% of a surfactant. The preparation method comprises the following steps: (1) grinding volcanic, and performing calcining modification; (2) preparing a salinized carrier; (3) preparing a surfactant sustained-release solution; and (4) adding the surfactant sustained-release solution into the salinized carrier, and stirring, thereby obtaining the sustained-release anti-freezing point asphalt pavement admixture. The admixture has good freezing and snow-melting performances and has long-lasting action, and the winter pavement management and maintenance cost is greatly reduced. Lots of volcanic serve as raw materials, so that the price is relatively low, and the cost is saved. The method is simple in process and readily available in equipment raw materials, and large-scale production can be realized.

A system and method for analyzing and minimizing the life-cycle cost of constructing, maintaining and rehabilitating a network of highway pavements for a pre-determined life-cycle and associated range of minimum acceptable conditions thereof. Specifically, the present invention enables a decision maker to realize the trade-off between cost and pavement condition, thereby aiding the decision maker in choosing an appropriate allocation of resources for pavement construction, maintenance and rehabilitation.

The invention discloses an indoor test estimation method for estimating a bituminous pavement rut. In the method, an indoor test method, a numerical analysis method and weather and traffic survey data are fully utilized, four factors, namely material parameters, deformation rules of materials, temperature conditions and traffic conditions, determining a development rule of the bituminous pavementrut are organically combined, and the depth of the bituminous pavement rut is accurately estimated. By taking Fenguan Highway in Jiangsu province as an example, the specific implementation mode is illustrated. The invention expands the conventional bituminous pavement rut estimation method, can provide scientific decision for pavement management and maintenance department, and has realistic significance of reducing the pavement test cost and maintenance cost.

The invention discloses an intelligent traffic pavement public safety online monitoring cloud platform based on machine vision and an image processing and analysis technology. Comprising a traffic pavement section division module, a pavement section arrow marking line image acquisition module, a marking line database, an arrow marking line image analysis module, an obstacle volume analysis module, a distance matching and tracking module, a pavement management center, a wear parameter statistics module, a management server and a background display terminal, according to the method, image acquisition is carried out on traffic road surface arrow marking lines, abrasion area acquisition is carried out on marking lines which are not clearly marked due to abrasion, and then statistics is carried out on arrow marking line abrasion danger coefficients corresponding to all abrasion road surface sections, so that comprehensive arrow marking line abrasion danger coefficients of a traffic road surface are obtained. The road traffic safety monitoring range at present is widened, traffic congestion or traffic accidents caused by unclear marking of road surface arrow traffic marking lines are reduced, and the road surface traffic level is improved.

The invention provides a pavement use performance detection data quality control method which comprises the following steps: firstly, arranging data which mainly comprises road section division, determination of the latest maintenance time and matching of historical performance detection data; And then, for the rut, flatness and anti-slip indexes, determining the longest incremental / decreasing subsequence of the detection data of each road section, carrying out quality evaluation on the data of the latest year, and counting the data qualification rate. According to the method, the historical development law of pavement performance detection data can be considered, abnormal data are screened on the premise that the original appearance of the data is reserved as much as possible, the data inthe pavement management system can be cleaned, the effects of quality evaluation and auditing can be achieved on new data, and the method has high application value. The method is ingenious in conception, rigorous in logic and convenient to popularize and apply in the field of transportation subjects.

The invention relates to the technical field of highway maintenance, in particular to a highway maintenance management system, which is characterized by comprising a database, a maintenance quality management system, a pavement management system, a daily maintenance management system, a maintenance decision management system, an engineering management system and a space image management system. According to the highway maintenance management system, each item of data of the expressway can be accurately and timely recorded, maintenance demand analysis and maintenance optimal distribution in a period of time can be carried out on the whole road section, and corresponding maintenance procedures and maintenance degree information are provided. The problems that an evaluation decision-making system of an existing expressway maintenance system is imperfect and narrow in culvert surface are solved, and standardized management of maintenance work and scientific, standardized and effective management and complete sharing of data information are achieved.

A road surface management system is capable of detecting road surface conditions that tend to damage dump trucks and displaying the positions of such road surfaces. When the traveling speed of the dump truck is higher than or equal to a preset threshold value, the server judges whether or not each of the pressures of suspensions of the dump truck detected by pressure sensors is within a reference range which has been set corresponding to each suspension. The server judges that the road surface at the position of a dump truck is in a poor condition if one of the pressures of the four suspensions of the dump truck is judged to be outside the reference range and the remaining three pressures are judged to be within the reference range. The positions of the road surfaces judged to be in the poor condition are displayed on an indicator.

Mobile Agent-based wireless sensor networks distributed management approach relates to a wireless sensor network management methods, mainly use the distributed computing technology to solve the wireless sensor network monitoring and control problems, according to the specific application to divide wireless sensor networks regional management point to the management of domain, Pavement Management Domain and fencing management domain, the form of hardware, compared to the wireless sensor network nodes are generally more adequate resources Mobile Agent wireless sensor networks deployed in these regions, in the specific application of wireless sensor networks can be formed in the operation of the dynamic management of mobile networks to provide wireless - sessile continuous or on-demand network monitoring and control services. The invention realize wireless sensor network applications and management separation of the distribution and management, it is convenient and flexible to manage systems and wireless sensor networks scale of the complexity of the application and user needs change, thereby reducing the wireless sensor network system workload.

The invention discloses a sustained-release anti-freezing point asphalt pavement admixture and a preparation method thereof and belongs to the technical field of preparation and application of environmental-friendly snow-melting agents. The sustained-release anti-freezing point asphalt pavement admixture is prepared from the following components in percentage by mass: 35-45% of modified volcanic powder, 52-63% of a freezing point drop agent and 2-6% of a surfactant. The preparation method comprises the following steps: (1) grinding volcanic, and performing calcining modification; (2) preparing a salinized carrier; (3) preparing a surfactant sustained-release solution; and (4) adding the surfactant sustained-release solution into the salinized carrier, and stirring, thereby obtaining the sustained-release anti-freezing point asphalt pavement admixture. The admixture has good freezing and snow-melting performances and has long-lasting action, and the winter pavement management and maintenance cost is greatly reduced. Lots of volcanic serve as raw materials, so that the price is relatively low, and the cost is saved. The method is simple in process and readily available in equipment raw materials, and large-scale production can be realized.