156results about How to "Improve punctuality" patented technology

A novel sleep regulating pharmaceutical formulation is introduced, typically implementing two principal drugs having actions which are reversive to one another, yet incorporated into a unitary solid dosage, and prepared for oral administration before bedtime. Usually, structure is configured to initially release a calmative or other sleep-compatible substance by prompt dissolution. The initial release is followed by a specific period of delay, which in basic formulations entails no release of any drug, and which allows a nominal interval of sleep. At the terminus of the delay, a final agent is released to induce wakeup. Incorporation of agents of opposite action within a unitary dosage form renders utility which is uniquely appropriate to the invention. In a preferred embodiment, delay of release and final delivery of wakeup agent are arranged by a dialysis membrane which eventually bursts as a result of osmotic pressure generated by a hydrophilic core.

The invention provides an adder-based backup clock calibrated by a GPS. The adder-based backup clock comprises a GPS receiver, a singlechip, a crystal oscillator, a programmable logic device and a time-digital converter (TDC) which are connected in sequence. The frequency of the crystal oscillator is divided into second pulse output by an adder-based clock circuit realized in the programmable logic device, wherein the frequency dividing ratio of the clock circuit can be finely adjusted. By utilizing the characteristic that 1PPS second pulse signals output by the GPS receiver has a random jitter error but no accumulation error while a second pulse generated after the frequency division of the high-stability crystal oscillator has good temporary stability but the accumulation error, the time-digital converter (TDC) is adopted to measure a phase difference between the two second pulses and filter measurement results of multiple times so as to calculate an accuracy error value of the frequency of the crystal oscillator, the error value is converted into a clock step fine-adjusting value and the frequency dividing ratio of the circuit is adjusted to compensate an accuracy error of the crystal oscillator generated by aging so as to realize high-precision backup. The backup clock has the advantages of full digitalization, simple structure, convenient integration and the like.

A method is provided for managing the scheduling of a plurality of print jobs for a print shop. The method includes obtaining a print job input stream including the plurality of print jobs. Each of the plurality of print jobs is scheduled for processing unless at least one of the plurality of print jobs is determined to be a disturbance job, the disturbance job causing delays in processing of other print jobs in the plurality of print jobs that would not occur but for the existence of the disturbance job in the print job input stream. The disturbance job is then assigned a processing related value that decreases over time, and scheduling of the disturbance job is delayed until the processing related value is less than a selected threshold value.

The invention relates to a high-precision timing system and method with a navigation satellite adopted. The method includes the steps that firstly, whether the timing system is successfully positioned or not is confirmed; secondly, whether a PPS signal provided by a satellite signal receiving module is continuously effective or not is judged; thirdly, timing is carried out through the satellite PPS signal; fourthly, punctuality is carried out through a local clock signal. According to the high-precision timing system and method with the navigation satellite adopted, a constant-temperature crystal oscillator is disciplined through the PPS signal provided by the navigation satellite, and control parameter changes are recorded in the disciplining process; under the punctuality state, the frequency of the local clock signal is compensated for and adjusted according to changing conditions of the control parameters under the timing state. After the timing system loses a navigation satellite reference signal, synchronization between the timing system and the satellite can still be kept according to a PPS reference signal obtained through local clock signal frequency demultiplication, the punctuality ability of the system is greatly improved, and long-time punctuality work can be more precisely completed.

The invention discloses a green wave setting method for realizing streetcar interstation green-wave passage. The method comprises the following steps: collecting data of intersections along the line of streetcars and streetcar running data; determining an intersection timing plan according to the data of the intersections along the line of the streetcars and traffic flow of each intersection; setting up direction and car departing time, and determining time when the streetcars in up direction reach each intersection; determining streetcar pass phase position green light midpoint time and the car departing time of the streetcars in down direction; determining time of the streetcars in down direction reaching each intersection; and calculating the difference between the time of the streetcars in down direction reaching each intersection and the green light midpoint time, and determining time difference [delta]x of each intersection; and according to the time difference, adjusting the timing scheme of the intersection. The method prevents unnecessary parking of the streetcars at the intersections, thereby improving running efficiency of the lines; and with electric car running induction technology being combined, the streetcars are allowed to run according to set parameters, and punctuality rate of the streetcar is improved.

The invention provides a bus composite passenger flow counting management method for judging a dynamic state of the passenger flow of a ground public transport system by measuring mutual get-close or get-away states of a registered passenger, a vehicle operating on a scheduled route and a bus station position based on position coupling. After the passenger operates a handheld mobile terminal to realize a function of making an appointment for taking a bus, the system performs positioning coupling on the position of the handheld mobile terminal of the passenger and the position of an appointed station, and then judges whether a waiting passenger flow is formed; the system performs positioning coupling on the position of the handheld mobile terminal of the passenger, the position of the station and the position of the vehicle operating on the scheduled route, and then judges whether a get-on-the-bus passenger flow and a get-off-the-bus passenger flow are formed or judges whether the passenger gives up waiting for the bus. On the basis of the judgment, a background database acquires and analyzes passenger flow information, and transmits a result to a dispatching operating system and the handheld mobile terminal of the passenger, so that a dispatching room can dispatch the buses conveniently according to the passenger flow conditions, and the passenger can select a better bus trip route conveniently.

The invention discloses a bus priority control system and a method based on a timetable. The bus priority control system comprises a vehicle identification unit, a timetable database unit, an intersection signal control unit and an intersection signal machine, wherein the vehicle identification unit obtains the information of a bus passing an intersection; bus lines passing the intersection and a preset running timetable are stored in the timetable database unit; and the intersection signal control unit obtains the information of the bus passing the intersection to compare with the running timetable in the timetable database unit, judges whether the bus is late, and executes vehicle priority control if the bus passing the intersection is late. The method solves the technical problem that whether the bus is late can not be judged in the condition that no GPS or wireless networks exist in the prior art. The method shortens the intersection passing time of the late bus, ensures that the late time of the bus at the next stop is reduced, and improves the on schedule rate of the bus.

The invention relates to a high precision time keeping method and a high precision time keeping device. The method comprises the following steps of acquiring each reference time source signal, and judging validity of each reference time source according to each reference time source signal; when all reference time sources are invalid, acquiring a temperature aging prediction model of a local clock crystal oscillator, wherein the temperature aging prediction model is used for recording a corresponding relation between the temperature of the local clock crystal oscillator, the working time of the local clock crystal oscillator and frequency deviation of the local clock crystal oscillator; predicting the frequency deviation of the local clock crystal oscillator according to the temperature of the local clock crystal oscillator and the working time of the local clock crystal oscillator measured currently, and the temperature aging prediction model of the crystal oscillator; and adjusting a local clock according to the frequency deviation of the local clock crystal oscillator. According to the high precision time keeping method and device provided by the invention, the frequency deviation of the local clock crystal oscillator is predicted according to the temperature aging prediction model of the local clock crystal oscillator, the local clock is adjusted according to the frequency deviation, and the time keeping precision is high.

The invention discloses an automatic device high-precision time keeping method. The automatic device high-precision time keeping method specifically includes the following steps that when an FPGA has GPS timing pulses, RTC pulses are subjected to frequency and phase correction; the corrected RTC pulses are used for counting to generate an interrupt signal with synchronous GPS timing frequency and phases, and a CPU carries out interpolation smoothing on an internal counter after receiving an interrupt request to obtain accurate nanosecond time information; after the GPS timing pulses are lost, the CPU carries out system time keeping through the time information obtained after interpolation smoothing. On the basis of not changing original RTC circuit topology, the RTC pulses are used for time keeping, and the requirements of a power station secondary automatic equipment device on time keeping precision can be met while the design cost is reduced.

Systems and techniques are described to enable the dynamic selection of a transit route through the stop zones of a transit line. Techniques are disclosed for receiving a current location of a transit vehicle on a transit line and determining a transit route through one or more of the vehicle's remaining stop zones by choosing an optimized combination of stop options and route segment options for that specific transit vehicle. Techniques may be performed in some cases by accessing a real-time traffic information service to obtain one or more traffic condition factors on a route segment, determining a dynamic route segment option weight, calculating a dynamic cost function with respect to the weights, and determining an optimized set of the route segments with respect to the cost functions.

The invention discloses a locomotive ticket-buying and seat all-intelligent recognition system which comprises a seat arranged in a locomotive. The seat comprises a base fixed on a locomotive base plate, the base is connected with a cushion through a rotating shaft arranged on the base. The rear of the cushion is provided with a backrest, the lower end of the backrest is connected with the base through a backrest rotating shaft, a torsion spring is arranged between the cushion and the rotating shaft, a clamping pin connected with a driving mechanism is arranged in the base, and the bottom of the cushion is provided with a clamping hole matched with the clamping pin. A display screen, a loudspeaker, an induction zone and a prompt lamp which are connected with a control system are arranged at the top end of the backrest. The control system is connected with the driving mechanism through a driving circuit, the control system is connected with a locomotive data processing system through a locomotive network system, and the locomotive data processing system is connected with an internet ticket-buying system through a wireless network. The passenger in-place speed is improved, true and false ticket-buying passengers are identified, the passenger management cost is reduced, the management efficiency is improved, the locomotive departing and arrival punctuality is improved, and the service quality is improved.

The invention relates to a bus signal priority necessity analysis method under main line coordination control. The operation characteristics of social vehicles and buses in coordinating subarea intersection groups are comprehensively considered, the analysis method with two-way green wave bandwidth, bus signal priority benefits and the response execution frequency of the bus active priority strategy as comprehensive indicators is provided, the necessity of bus signal priority under main line coordination control is judged, and quantitative support is provided for optimization, implementation,post-evaluation and the like of bus signal priority strategy modes.

The invention relates to a high-efficiency crystal oscillator frequency timekeeping method. According to the method, a device can receive a time synchronization signal of a time synchronizing device or a signal output by a GPS reception module; when the time synchronization signal or a satellite signal is normal, the crystal oscillator counting number in each second is calculated and cached; when the time synchronization signal or the satellite signal is lost, the average crystal oscillator counting number is calculated according to the recorded second-pulse crystal oscillator number, and generated remainder is shared equally; and the crystal counting number in each second after average and remainder sharing provides second pulses for time keeping. The method can be used improve the timekeeping precision and operation efficiency of equipment.

The invention relates to a trailing interval flow control scheme rationality assessment method. The trailing interval flow control scheme rationality assessment method comprises the processes of utilizing a data source under the condition without trailing interval limitation to assess accuracy of demand predication and capacity prediction and to eliminate interference of MIT (miles-in-trail) factors, and establishing a demand prediction and capacity prediction accuracy probability computing method; based on different demand and capacity prediction accuracies, establishing a process for assessing the rationality of MIT under the condition of taking trailing interval flow control measures; determining capacity influence rates f(CERXt) of different weathers; analyzing consequences and possible reasons due to the fact whether the MIT is implemented under different predicting conditions. The trailing interval flow control scheme nationality assessment method improves the current situation of incapability of assessing rationality of existing MIT flow control measures, lays foundation for enhancing and improving trailing interval control schemes, achieves effective supervision of every airspace control units, improves the air traffic efficiency and the management level, avoids airspace resource waste, improves the on-schedule rate of flights and reduces flight delay.

The invention discloses a flight plan security judgment early-warning method based on four-dimensional flight path operation, and relates to the technical field of air traffic. The invention aims at solving a problem that there is no quantification method for the flight plan security based on the four-dimensional flight path operation currently. The method comprises the steps: calculating a space-time accessible domain between each two planned flight path point for each aircraft; determining the occurrence position and time of a conflict through recognizing a potential space-time conflict region of each aircraft, and considering the aircraft movement under the impact of various uncertain factors as the irregular Brownian movement; calculating the conflict probability of each aircraft underthe flight plan as the quantification basis for the flight plan security. Through the optimization of the flight plan, the method can effectively improve the security of the air traffic, and balancesthe conflict between the high-speed increasing demands for the air traffic and the limited space resources. The method is suitable for the judgment early warning of the security of the flight plan.

The invention discloses a train energy-saving operation method based on a multi-target particle swarm algorithm. The method comprises the following steps: setting train operation environment parameters including line data, train data and operation data; establishing a train kinematics model and a traction energy consumption calculation method; establishing a train energy consumption multi-objective optimization model by taking traction energy consumption and operation time as optimization objectives; solving the optimization model by adopting a multi-objective particle swarm algorithm to obtain multiple groups of non-inferior solutions of traction energy consumption and running time of the train in a single interval; calculating the traction energy consumption and running time non-inferiorsolution of the train in each section of the whole line, and selecting the optimal solution of each section by adopting a dynamic programming method, so as to enable the energy consumption of the whole line of the train to be minimum under the condition of meeting the requirement of specified running time. According to the method, the searching efficiency of the train energy-saving optimization problem is improved, the train energy consumption is effectively reduced, and the train operation punctuality is improved.

The invention discloses a big data-based method and system for predicting the variable sliding time and relates to the field of civil aviation information. The method comprises the following steps: analyzing historical data in an airport collaborative decision-making system database, extracting flight departure operation data from the historical data, determining main influence parameters of flight departure, setting a weight value and dynamically adjusting a weight proportion; modeling by adopting a gradient boosting tree model to obtain a variable sliding time dynamic estimation model, inputting actual data of main influence parameters into the variable sliding time dynamic estimation model, estimating probability distribution of variable sliding time, and calculating an expected value;performing visual display on the variable sliding time. According to the method, the variable sliding time is intelligently predicted through manual prediction based on the constructed A-CDM system. The large-area flight delay is prevented and relieved through big data visualization auxiliary decision making.

The invention discloses a public transportation operation management scheduling method which comprises a step of carrying out unified management of public transportation information, operation personnel information, operation line information and site basic information, a step of obtaining in and out passenger flow data through cameras at an entrance and an exit of an operating public transportation means, a step of carrying out statistical analysis of passenger flow on each time period based on a time axis, a step of generating a new public transportation line operation plan based on a passenger flow statistical analysis result, a step of carrying out scheduling and distribution on the public transportation means, operators and sites according to the operation plan, a step of changing thea current operation management and scheduling mode, and a step of changing simple manual field scheduling into dynamic monitoring and real-time scheduling. The optimal configuration of resources is achieved, regional scheduling is achieved, the optimal allocation of production resources such as vehicles, manpower, stations and the like is achieved, uniform and reasonable traffic intervals are achieved, and a vehicle stop time is shortened. The enterprise business efficiency and labor productivity are improved.

The invention discloses a light weapon high-precision simulative shooting training system. The system comprises a laser tube, wherein the laser tube is connected to a control circuit and is positioned in a muzzle regulating mechanism; the control circuit comprises a laser emission control circuit; the laser emission control circuit comprises an emission control circuit and a light-operated switch connected to the emission control circuit; the muzzle regulating mechanism comprises a muzzle accommodating cavity; the light-operated switch is controlled by a push control device and the push control device is communicated with the muzzle accommodating cavity; the system is matched with a blank ammunition, so the recoil during shooting of a gun can be accurately simulated, and the shooting training is close to firing practice as much as possible.

The invention relates to a cloud-architecture public bicycle transportation system. The system comprises second-generation resident identification cards, bicycle lock columns, bicycles with lock devices, and a cloud-architecture network system. The cloud-architecture network system is connected to the bicycle lock columns which are connected by on-site buses in a one-machine-with-multiple-columns style. Each intelligent parking lock is provided with an intelligent parking lock identification chip. The bicycles are provided with lock devices, each of which is provided with a lock device identification chip, and are connected to the bicycle lock columns. The system has the following beneficial effects: 1. relieving urban traffic pressure; 2. alleviating road traffic congestion, solves the "last 1 kilometer" difficulty of going out, and reducing construction cost through the one-machine-with-multiple-columns style; 3. solving the problems of high admission threshold and inconvenient identity authentication; 4. improving reliability and flexibility of the system, and providing 24/7 uninterrupted services by means of the unified network service; and 5. supporting ubiquitous access.

The invention relates to a traction motor, more particularly, to a single bearing structured heavy-duty locomotive traction motor. The invention aims to solve the unreasonable connection structure between the rotor shaft driving end and the power input shaft of the gear box of a single bearing structured heavy-duty locomotive traction motor in prior art and to solve the problem that the bearing can not be replaced online. The rotor shaft driving end of the single bearing structured heavy-duty locomotive traction motor is connected with a coupling shaft in a column shape; the coupling shaft is provided with threaded through holes along the axis line of the columnar coupling shaft, and one end face of the coupling shaft is provided with meshing teeth. The driving end face of the rotor shaft is provided with a fixing hole, and the axis of the fixing hole coincides with the axis of the rotor shaft. One end of the non-engaging tooth of the coupling shaft is inserted into the fixing hole with interference fit. According to the invention, it is possible to meet the application requirement of a 30 ton axle-weight locomotive, and to realize the function of replacing the bearing without unloading the locomotive. Therefore, the repair time and cost for locomotive traction motor faults are greatly reduced while the punctuality rate and utilization rate of the locomotive are improved.

The invention discloses snow-melting and deicing integrated maintenance equipment which comprises an automobile body provided with an automobile chassis, a compartment and an automobile head, an ice smashing device, a snow removing device and a snow clearing device, wherein the ice smashing device consists of impeller heads arranged on the automobile chassis, impeller head motors, an impeller box, a material separation bin and a recovery channel; the snow removing device consists of a snow removing box communicated with the material separation bin, and a negative pressure generator connected with the snow removing box; the snow clearing device consists of a snow clearing hydraulic motor arranged at the front end of the ice smashing device, a cleaning cylinder, a protective cover, a lifting control system capable of controlling the cleaning cylinder to lift; the impeller head motors drive the impeller heads to cast steel shots on an ice surface of a highway at a certain angle and a certain speed, so that a working effect is generated; and output rotating speeds of the impeller head motors and the blanking quantity of a discharge sluice valve are changed, so that different results are generated when the equipment hits the ice surface.

The invention provides a train-ground wireless communication system of a medium-high speed maglev train. The system comprises a vehicle-mounted radio system, and a partition radio control unit, a radio base station and a central radio control unit which are arranged in partitions along a track. The vehicle-mounted radio system is connected and communicated with the radio base station through 38G radio; the radio base station transmits received train signals to the partition radio control unit through an optical fiber network, the partition radio control unit transmits the received train signals to the partition safety computer, the traction control system and the central radio control unit, and train-ground information transmission is achieved. According to the system disclosed by the invention, the communication partitions and the operation control partitions are arranged in a staggered manner; the cross-partition handover of the train-ground communication and the cross-partition handover of the operation control system are executed separately, so that the operation control partition handover failure rate caused by communication connection failure is reduced, the times of tractioncut-off and emergency braking are reduced, and the line punctuality rate and the passenger comfort are improved.

Being applicable to occasion of requiring accurate, reliable time information, the method possesses features of high precision, good safety and long transmission distance. The method includes steps: (1) time server at upper stage outputs signal of time code; (2) converting signal of time code to data signal transmitted on digital data dedicated line; (3) digital data is transmitted on digital data dedicated line; (4) transmitted data signals are converted to signal of time code again, and received by time server at lower stage; (5) processing signal of time code received by time server at lower stage, and outputting diversified types of time signal. Not connected to IP network, the time server at upper stage without limitation in transmission distance outputs signal of time code in one way only so as to eliminate hidden trouble in safety. Through phase-lock and time delay compensation process, time server at lower stage outputs time in precision in microsecond or Nano second level.

The invention provides a vehicle scheduling method and system based on the Internet of Things. The method comprises the steps: generating a work order queue according to a production plan and preset verification logic; obtaining the current station material capacity, the production takt and the material distribution period of each station of the workshop, and calculating the material net demand inthe period; according to the generated work order queue and the calculated material net demand, summarizing the work order state in the work order queue and the material demand of each station of theworkshop to form a material calling list management table; according to the formed material calling list management table, whether material changing production is needed or not is determined, if material changing production is needed, the current workshop materials are allocated in advance, and the AGV is controlled to distribute the allocated current workshop materials to all stations of the workshop within the period time. According to the vehicle scheduling method and system based on the Internet of Things, material accumulation of online stations is reduced, and production line field management is improved; and the punctuality and the accuracy of material distribution are improved.