31 results about "Clearance time" patented technology

The invention belongs to the technical field of traffic signal control and discloses a traffic green wave coordinated control technology for synergistic optimization of tidal lanes and direction-changing lanes, including the following steps: Step 1: judging whether the conditions for setting tidal lanes are met: The value divides the road congestion degree and service level into four grades and the unbalanced flow distribution coefficient: judge whether the service level is above three grades and the direction distribution unbalanced coefficient is >2/3. Step 2: Combine tidal lanes with variable traffic, and set up straight-left and straight-going traffic at the entrance of tidal lanes. When changing the direction of tidal lanes, set a 5-minute clearing time; In wave coordination, a half-period green wave coordination is proposed.

The invention relates to an intersection-traffic control method giving priority to trunk roads, which is characterized in that the mode of controlling traffic lights on a trunk road is to simultaneously allow or stop the running of vehicles on all lanes in the same driving direction, and to allow the running of the vehicles in the driving direction of an opposite trunk road respectively; the mode of controlling the other roads is to allow the running of the vehicles on a right-turn lane on the premise of not affecting the running of the vehicles on the trunk roads when the vehicles on the trunk roads are allowed to run, and to allow the vehicles on the other lanes to run when the running of the vehicles on the trunk roads is stopped. The method controls clearance time and clearance modes of different roads according to the road traffic conditions of intersections, and preferentially allows the vehicles on the trunk roads to go when traffic jams occur on the trunk roads. The method has the advantages of better utilizing the traffic capacity of road intersections, effectively ensuring no jams on the trunk roads, improving the vehicle-passing capacity of the intersections and easing the prior traffic pressure.

A host vehicle includes a combustion engine configured to provide a propulsion torque to satisfy a propulsion demand. The vehicle also includes at least one sensor configured to detect a position of a reference vehicle. A vehicle controller is programmed to determine a path between a current host vehicle location and an upcoming intersection. The controller is also programmed to forecast a path clearance time at which the host vehicle is able to traverse the intersection in response to sensor data indicating the reference vehicle moving within the path ahead of the host vehicle. The controller is further programmed to deactivate the engine prior to a host vehicle stop based on the path clearance time being greater than a time threshold.

The invention discloses a road section pedestrian traffic signal control system based on pedestrian crossing clearance time. The road section pedestrian traffic signal control system based on the pedestrian crossing clearance time comprises a pedestrian data acquisition and recording unit, a pedestrian crossing clearance time computing unit and a signal implementation and feedback unit, and is applicable to pedestrian signal timing designs of thick crowd crossing districts and intersections with exclusive pedestrian phases. The road section pedestrian traffic signal control system based on the pedestrian crossing clearance time comprehensively takes time loss and pedestrian crossing traffic capacity decline due to mutual disturbance of stream of people of opposite directions during thick crowd crossing into consideration, overcomes the defects that the pedestrian speed is used as a constant and the pedestrian crossing capacity is unchanged in a traditional pedestrian traffic signal control, so that the timing result is more accurate and practical. Only the pedestrian flow and the pedestrian speed of the pedestrian crossing are needed to be measured and computed, so that the computation is concise.

The invention discloses a bidirectional green wave coordination control method based on red lamp queue clearance constraint condition in an improved MAXBAND model. The method comprises the following steps of determining a single-point timing scheme of each intersection in trunk coordination; determining a common period of a coordinated road segment; correcting a constraint condition in a traditional MAXBAND model, wherein the step comprises correcting a green conflict constraint condition and an integral-time period constraint condition, and adding a head vehicle constraint condition and a determining screening condition; and through correction in a previous step, finally subdividing a MAXBAND model into two models, namely a model A and a model B, and solving by means of the improved MAXBAND model algorithm. According to the bidirectional green wave coordination control method, through performing geometric meaning correction on the red lamp queue clearance time in the traditional MAXBAND model, the determining screening condition of the algorithm model and the constraint condition of head vehicle mode are added, and a green wave coordination problem in actual engineering can be more accurately described and settled, thereby realizing an effect of improving optimal controlling in trunk bidirectional coordination.

A vehicle detector capable of detecting motorized vehicles, bicycles only or both types of vehicle in a loop near a controlled intersection. The vehicle detector includes a processor under control of machine readable code for controlling the operation of one or more oscillators coupled to one or more loops. Manually actuatable switches enable the entry of mode settings—i.e., motorized vehicle and bicycle detect or bicycle only detect—and clearance time parameters for ensuring that one or more bicycles can safely proceed through an intersection when given a green light. Selection of the Bicycle detect mode is denoted by the entry of a non-zero value in an initial timer using one or more of the switches.

The invention provides a modern tram intersection signal control pre-warning method, which comprises the following steps: based on an RFID (Radio Frequency Identification Device) arranged in a fixed position, updating tram running information; based on the time for RFID electronic tags at the head and the tail of a tram to pass through an RFID reader-writer and the tram body length information, calculating the average speed information of the tram; based on the average speed information and a distance Si between the current RFID reader-writer arranged beside a track and the downstream adjacent intersection, calculating estimated time for the tram to arrive at the downstream adjacent intersection; according to the geometric type of the downstream adjacent intersection, obtaining clearance time and safety reserved time of the downstream intersection; based on the steps, calculating the estimated time for the tram to arrive at the downstream adjacent intersection and the sum of the clearance time and the safety reserved time of the downstream adjacent intersection, and judging whether the risk of conflict exists or not. The invention also relates to a modern tram intersection signal control pre-warning system.

The invention discloses a two-way two-lane highway construction area optimal construction length setting method. Firstly the traffic data of a construction road are acquired by aiming at the typical two-way two-lane national and provincial highway and county and township roads, including traffic flow arrival rate, speed and saturation flow rate, etc.; and delay cost, average construction time of the road per kilometer, the fixed cost of a single construction area and other parameters are inputted; secondly, total effective green light time of one period is calculated, and the effective green light time is allocated according to the principle of isosaturation; and queue clearance time of the maximum queue length point within the single period and the total vehicle delay within the period are accordingly calculated through combination with the traffic flow fluctuation theory; then the total delay cost of the vehicle and the fixed cost in the construction period are calculated; and finally a calculation model of the optimal construction length of the highway construction area is established. According to the method, the mathematical model is established to quantitatively calculate the optimal construction length of the construction area by using the mode of alternate releasing through signal control so that the traffic flow delay and the total cost can be reduced.

The invention discloses an integrated movable workbench based on inspection and quarantine big data. The integrated movable workbench comprises a host, a display terminal, a keyboard, a two-dimensional code acquisition device, a printer and a box body; the display terminal, the keyboard, the two-dimensional code acquisition device and the printer are respectively in communication connection with the host; the printer comprises a printer body and a paper outlet end; the host and the printer body are arranged in the box body, and the paper outlet end extends to the exterior of the box body fromthe side surface of the box body; the box body is provided with a top end and a bottom end along the height direction of the integrated movable workbench, the display terminal and the keyboard are arranged at the top end, and the two-dimensional code acquisition device is fixed on the surface of the box body; a sliding mechanism is arranged at the bottom of the integrated movable workbench; the two-dimensional code acquisition device is used for scanning a to-be-examined label and/or a to-be-examined document of an object at an inlet/outlet; and the printer is used for printing a sampling label and/or a sampling document after the object at the inlet/outlet is examined. According to the integrated movable workbench disclosed by the invention, the custom clearance time can be shortened, theinspection and quarantine working efficiency can be improved and the working strength of a worker can be reduced.

The invention discloses a method dynamically adjusting the front extension quantity of the top head. The invention is characterized in that the invention includes the steps of the record parameters, the automatic supplementation of the abrasion quantity of the top head diameter, the automatic supplementation of the top head and rolling hot expansion which can adopt the closed ring control method or adopt the trend control method and the automatic supplementation of the top rod length L; the front extension quantity is dynamically adjusted in the production clearance time and production time of the pipe expanding or perforation, thus implementing the precision control to the wall thickness of the steel pipe, ensuring the same produced steel pipe have uniform wall thickness and the same batch of steel pipes have basically uniform wall thickness.

The invention discloses a quick deep-layer liquid state fermentation method for producing sparassis crispa bacterial powder. According to the method, the semi-continuous fermentation process is adopted to treat sparassis crispa strains to obtain fermentation liquor rich in abundant mycelia fast, and then the fermentation liquor is treated and separated through a micro-filtration membrane to obtain mycelia of sparassis crispa. The traditional intermittent sparassis crispa batch fermentation process is changed, and the mycelia are separated in the mode of efficient ceramic membrane micro-filtration instead of the separation mode of a centrifugal machine. The semi-continuous fermentation process overcomes the defects that the number of process links of traditional batch fermentation is large, middle clearance time is long, and equipment efficiency is low. The efficient fermentation liquor filtered through the ceramic membrane is adopted, the mycelia entering filter liquor can be reduced, the yield of the mycelia can be increased, COD of the filter liquor is reduced, the sewage handling capacity is reduced, damage to cells is avoided, and it is ensured that effective ingredients in the cells are recovered completely. Compared with the traditional technology, the method has remarkable economic benefits, social benefits and environment-friendly benefits.

The invention discloses a service control method and device. The method comprises the following steps: acquiring location information of a first secret service vehicle fleet, determining the current traveling road section of the first secret service vehicle fleet as well as distance and time to a first downstream crossing from the first secret service vehicle fleet according to the location information of the first secret service vehicle fleet, wherein the first downstream crossing is any one of downstream crossings of the current traveling road section on a secret service route, determining aresident crossing set according to the distance and time to the first downstream crossing from the first secret service vehicle fleet as well as queue clearance time of the first downstream crossing,and sending a resident instruction of the first secret service vehicle fleet to a traffic signal machine of each resident crossing in the resident crossing set. The technical scheme of the inventionsolves the problems that a service control scheme has high requirements on guard personnel in the prior art and crossing resident control timeliness is poor.

The invention discloses a smart distribution grid user access scheme aided analysis method based on big data technology. The method comprises the following steps: step one, acquiring basic data; step two, processing data; step three, entering the data; step four, analyzing the data; step five, searching a set of power source point equipment; step six, computing openable load; step seven, querying a set of accessible equipment; and step eight, generating a power supply scheme. The smart distribution grid user access scheme aided analysis method based on big data technology disclosed by the invention has the advantages that the normalization and the reasonability of a distribution grid user access scheme programming can be improved, and the working efficiency can be improved; the visual display of the distribution grid user access scheme is realized so as to effectively guide the field operation personnel, reduce the field operation time and the fault clearance time, and improve the customer satisfaction at last.

The invention discloses a pipeline cleaning fuzzy control system of a ball mill pressure difference thickness measurement system, which is characterized in that: the invention comprises upper and lower probes arranged on ball mill driving side, upper and lower probes arranged on non-driving side; a pressure transmitter is arranged; the pressure transmitter can be connected with a programmable controller; the programmable controller gains pressure values formed when cleaning the state of front and behind probe ports via grading for air source pressure, pipeline characteristics and state of probe ports, and opening and closing a control cleaning gas source electromagnetic valve and each cleaning pipeline electromagnetic valve, and sets working clearance time of the varietal control cleaning gas source electromagnetic valve and each leaning pipeline electromagnetic valve via comparing and calculating.

The invention discloses a quick deep-layer liquid state fermentation method for producing xylariasp bacterial powder. According to the method, the semi-continuous fermentation process is adopted to treat xylariasp strains to obtain fermentation liquor rich in abundant mycelia fast, and then the fermentation liquor is treated and separated through a micro-filtration membrane to obtain mycelia of xylariasp. The traditional intermittent xylariasp batch fermentation process is changed, and the mycelia are separated in the mode of efficient ceramic membrane micro-filtration instead of the separation mode of a centrifugal machine. The semi-continuous fermentation process overcomes the defects that the number of process links of traditional batch fermentation is large, middle clearance time is long, and equipment efficiency is low. The efficient fermentation liquor filtered through the ceramic membrane is adopted, the mycelia entering filter liquor can be reduced, the yield of the mycelia can be increased, COD of the filter liquor is reduced, the sewage handling capacity is reduced, damage to cells is avoided, and it is ensured that effective ingredients in the cells are recovered completely. Compared with the traditional technology, the method has remarkable economic benefits, social benefits and environment-friendly benefits.

The invention discloses a method for setting a'fixed-time and fixed-point 'garbage clearance time window, which comprises the following steps of: after a resident garbage throwing time window is ended, setting maximum clearance cost by a clearance commander, acquiring multi-source data by a remote system, finishing garbage clearance scheme planning under multiple clearance time windows, comparing the garbage clearance scheme planning with the preset maximum clearance cost, and determining the shortest clearance time window; comprising the following steps: S1, acquiring multi-source data; s2, establishing a garbage clearance vehicle scheduling model; s3, calculating the lowest clearance cost; and S4, determining the shortest clearance time window. According to the method, on the premise of garbage collection cost limitation, a garbage collection vehicle scheduling model with the lowest cost is constructed, the collection cost under different time windows is calculated by using a tabu search algorithm, and finally the shortest garbage collection time window is determined.

The invention relates to application of indinavir in preparing medicament or medicinal composition for treating malaria. The application comprises establishing monkey model with malaria infection, treating with Indinavir dripfeed administeration, detecting infection rate of plasmodium red blood cell through blood smear, comparing with negative control group, getting indicator such as parasite density, parasite clearance time, red-cell count and temperature, detecting therapeutic action and effective therapeutic dose of Indinavir to monkey malaria infection. Effective dose of indinavir for treating human malaria is no less than 20mg/kg/d according to equivalent dose converting equation of different genus animals. The invention provides new target spot and research direction for exploiting antiperiodic, and settles foundation for discussing combined application of indinavir and other antiperiodic.