59 results about "Transit time" patented technology

A system (100) for providing a normalised microcirculatory resistance value for a vessel (110), is provided. The system includes one or more processors (120) configured to: compute (S110) a microcirculatory resistance value for the vessel (110) based on a transit time (TT) taken for an injected bolus to travel between a proximal position (Posa) in the vessel, and a distal position (Posd) in the vessel; and divide (S120) the computed microcirculatory resistance value by a transit length (dT) representing a length of the vessel between the proximal position (Posa) and the distal position (Posd), to provide the normalised microcirculatory resistance value.

Apparatuses, methods and computer programs for elevator call allocation with adaptive multi-objective optimization are disclosed. At least some of the disclosed embodiments may allow adaptively and smoothly changing an objective function according to passenger traffic. This in turn may allow minimizing waiting times in all traffic situations compared to using a fixed objective function. Furthermore, at least some of the disclosed embodiments may allow adaptively and smoothly changing the objective function according to the traffic while taking user preferences into consideration via a single transit time target parameter.

The invention discloses a passenger selection behavior-based connection bus line-sharing optimization method and equipment, belongs to the technical field of urban traffic, and is used for solving the problems that existing connection buses are unreasonable in line-sharing station design, the cost of passengers and bus enterprises is difficult to reduce, the service level of the connection buses is not favorably improved, and the service quality of the connection buses is influenced. And the travel time of passengers is difficult to optimize. The method comprises the following steps: determining generalized travel cost based on waiting time cost, in-transit time cost and bus company operation cost; according to the generalized travel cost, carrying out regression analysis on the travel selection behavior influence factors of the passengers, and determining a connection bus route selection probability; carrying out model condition constraint under a related cost objective function on the connection bus to obtain a connection bus common line segment station optimization constraint condition set; constructing a connection bus common line segment station optimization model; and carrying out output calculation on the connection bus line-sharing station optimization model to obtain a connection bus line-sharing station optimization scheme and a departure interval.

The invention discloses a flight route processing method and device, electronic equipment and a storage medium, and relates to the field of aviation. The method comprises the steps that a target user journey, flight information and a freight rate route map are acquired, the target user journey at least comprises a starting place and a destination, and the freight rate route map is used for providing an airline and freight rate information of an airline company; m routes are determined according to the freight rate route map and the target user travel, and M is an integer larger than 1; according to the flight information and the target user journey, determining the minimum flight transit times from the starting place to the destination at the target date; according to the number of transit times of each route and the minimum number of flight transit times, a target route is determined from the M routes, and the target route is a route meeting the journey of the target user. The technical problem that in the prior art, a freight rate searching system is low in searching efficiency when a large number of transit interlinks are involved is solved.

A device and its use for measuring the instantaneous velocity vector of objects (1), (3) and (4) moving relative to each other are described, wherein the device is permanently installed on the object (1), referred to as the measuring platform, and, for example, road traffic moves along with the flow of traffic. By means of the presented device several measuring barriers (7) send beams orthogonal to the movement of the measuring platform (1), each beam being designed as a sequence of temporally separated electromagnetic pulses. If the beams of the measuring barrier (7) are reflected by the stationary objects in the environment (29), the electromagnetic pulses propagated back are registered in the detector part of the distance measuring sensors (6) of the device and the lateral distance (11) of the objects to the direction of movement x of the measuring platform (1) is calculated from the transit time of the pulses. The lateral measuring range, defined by the measuring barriers (7), is divided into sensitive distance ranges A (8) and disjoint, non-sensitive distance ranges A (9) by the selection of the areas to be monitored. If an object (3) passes through the sensitive distance area A (8) and a sequence of valid distance measurements is taken in A (8), the computer evaluates the presence of an object in A (8) as, for example, a motor vehicle, and the time of the beginning and end of the passage through A (8) is determined using the current system time of the computer. From the known distances {x i | i ∈ {1,n}} of the distance measuring sensors {S i | i={1,n}} (6) among themselves and parallel to the direction of movement of the measuring platform (1) and from the associated measuring times t j of passing and the associated distance y i (t j) the relative velocity vector of the passing object (3), e.g. a motor vehicle, is calculated. The speed of the measuring platform (1) in the direction of movement x is calculated from the ongoing distance data to the lateral environment (29). The absolute velocity of the object (3) in the x-direction is calculated as the sum of the speed of the measuring platform (1) itself and the x-component of the relative velocity vector of the object (3) to the measuring platform (1). Continuously measured rotation rates and accelerations of the measuring platform (1) using an inertial measurement unit enable support for the calculation and correction of the velocities as well as real-time quality control of the measurement data.

The invention relates to a method for determining a speed of a vehicle (10), in particular a rail vehicle (10), during travel on a travel path (14), the vehicle (10) comprising two sensor units (16a; 16b) of the same design and the second sensor unit (16b) being mounted on the vehicle (10) at a distance along a direction of travel of the vehicle (10), and the method comprising the following steps: • reading in first and second sensor data captured by means of the first and second sensor units (16A; 16B) during the travel on the travel path (14), the first and second sensor data representing the same physical property of the travel path (14); • determining a transit time difference on the basis of the read-in first and second sensor data, which transit time difference has a value from a set of specified quantized values due to a quantization effect resulting from a specified capture rate of the sensor units (16a, 16b); • reading in specified speed error information which represents a statistical distribution of a speed error; and • determining a speed of the vehicle (10) on the basis of the determined transit time difference and the read-in speed error information by means of a computing unit (20) in order to provide a speed value or speed curve corrected in view of the quantization effect.

A method performed by an electronic device for predicting a turnover time of a container is disclosed. The method includes obtaining shipping data associated with shipping of one or more containers. The method includes generating a turnaround time parameter indicative of a turnaround time of the container by applying a predictive model to the shipping data based on the shipping data. The method includes providing an output based on the turnaround time parameter.

A computer-implemented method includes receiving information of a logistics network representing a factory and associated suppliers of parts, evaluating a first transit time required to receive parts across the logistics network, for each supplier of the associated suppliers creating a digital copy of the logistics network in which a node connecting the supplier to the factory is removed from the digital copy of the logistics network, evaluating a second transit time required to receive parts, for a supplier of the associated suppliers having an impact metric above a threshold identifying a substitute supplier that ships to the factory in the logistics network, and in an event of failure of a given node in the logistics network, replacing in the logistics network a given supplier that uses the given node to ship to the factory and that has an associated impact metric above the threshold with the substitute supplier.

A method for classifying the height of an object by means of at least one ultrasonic sensor of a vehicle is disclosed. The method includes emitting an ultrasonic signal by the ultrasonic sensor of the vehicle in a transmission cycle; and performing a reception cycle, wherein the reception cycle has a reception time window which makes it possible to receive echoes having a transit time which corresponds to at least double a reception range of the ultrasonic sensor. It is checked whether echoes were received in the reception cycle. A detected object is classified in a height class depending on whether at least a first and a second echo were received, wherein the transit time of the second echo is an integer multiple of the transit time of the first echo.

A method (200) is used to detect a creep flow in a pipeline (110) by means of two ultrasonic transducers (122, 124) arranged thereon using the transit time difference method; the method (200) comprising the following steps: repeatedly determining (210) primary transit time difference measured values ​​between first transit time measured values ​​of ultrasonic signals that run from the first ultrasonic transducer (122) to the second ultrasonic transducer (124) and second transit time measured values ​​in the opposite direction; determining a transit time difference mean value (220) of the first type based on a tuple of the first type of not fewer than 40, for example not fewer than 80 and in particular not fewer than 160, of the primary transit time difference measured values; comparing (230) the transit time difference mean value with a threshold value;and detecting a creep flow (240) when the first type of transit time difference average exceeds the threshold value, wherein the threshold value is not more than 5 ns, for example not more than 2 ns and in particular not more than 1 ns;

A method, apparatus and computer program product are provided for quantifying public transport coverage. In this regard, for a traveler journey beginning at a starting location, transit time data is determined. The transit time data is indicative of a predicted amount of time to travel between the starting location and a departure location associated with a public transport boarding location for a public transport. Furthermore, waiting time data is determined. The waiting time is indicative of a predicted amount of time to wait at the departure location prior to departure via the public transport. Additionally, time to departure data is computed based on a combination of the transit time data and the waiting time data. For the traveler journey, a time to departure probability prediction is also determined.

A communication system includes a distributed unit (DU). The DU estimates distance information, converts the distance information into a transit time difference, and adjusts a transmission window according to the transit time difference, in which start and end points of the transmission window move according to the transit time difference.

A method for predicting the arrival time of a ship at berth, comprising the following steps: - collecting position information transmitted by a ship en route to a port, via a maritime telecommunications network; - predicting on the network, from the collected information and numerous present and past positions of ships en route to the port, the ship's arrival time in the port waiting area, using computing means located outside the ship; - predicting on the network, from numerous present and past positions of ships in the port waiting area, the start time of a transit of the ship to the port, from the port waiting area, using computing means located outside the ship; - predicting on the network, from numerous present and past transit times of ships between the port waiting area and the port quays, the ship's arrival time at a port quay.by means of computing located outside the ship, - communicate the ship's arrival time at the port quay (ET) to the ship's unloading equipment via the telecommunications network; - adjust the speed of the unloading equipment to meet the ship's arrival time at the port quay.

Method for measuring a temperature change (TINC) in a cable (K) of a vehicle, wherein the cable (K) connects at least two control units (A and B) of the vehicle, the cable (K) is configured at least to transmit signals between the control units (A, B), and each control unit (A, B) includes a crystal for time measurement, wherein this time measurement is configured to determine a hardware time of the control unit (A, B), where It is taken into account that a temperature change (TINC) of the cable (K) slows down the transmission of the signals carried through the cable (K), and To measure the temperature change (TINC), a measurement of the transit time change of at least one signal between the control units (A and B) is carried out, whereby a. To synchronize the hardware times of two control units (A and B), an Ethernet-based time synchronization protocol is used, in which one control unit (A, B) is a master and the other control unit (B, A) is a slave, the hardware time of the slave (B, A) is synchronized with the hardware time of the master (A, B), and to distinguish whether measured values ​​obtained from the measurement originate from the crystal of at least one control unit (A, B) or have resulted from the temperature change (TINC) of the cable (K), control unit (A) and control unit (B) each assume the role of master (A, B) once during one execution of the steps specified by the time synchronization protocol, thus the measurement is carried out in two configurations, while the other control unit (B, A) assumes the role of slave.and a delay in the arrival of the messages in both constellations is used to infer the temperature increase (TINC) of the cable (K) and / or , b. To detect an average temperature change (TINC), a number N of sets, each with at least one measured value, are compared, wherein at least a part of the time window during which the measured values ​​were obtained is divided into N intervals, and each measured value of an i set from the N sets was obtained at a time point which lies in the i interval of the considered part of the time window, a point representative of the measured values ​​of each of the N sets is determined, these points are arranged such that the representative point of set i is positioned on a time axis before the representative point of set i+1, and an average temporal change of temperature (TINC) is determined from this and / or c. a temperature-changing control unit (A, B) can be inferred from the knowledge of a cable routing in the vehicle and from the knowledge of the temperature change (TINC) in at least one cable (K) whose cable routing is known.

The invention discloses a method and a device for predicting interval transit time and formation pressure of an undrilled section. The method comprises the following steps: predicting a reference value of interval transit time of a non-drilling section at a specified depth according to a first relation expression of interval transit time and depth of a drilled section; according to the second relation expression between the interval transit time fluctuation data of the drilled section and the depth, the interval transit time fluctuation value of the non-drilled section at the specified depth is predicted; and according to the reference value and the fluctuation value of the interval transit time of the specified depth of the non-drilling section, determining an interval transit time prediction value of the specified depth of the non-drilling section. According to the pre-established compaction trend line relation expression of the interval transit time and the depth of the drilled section, the interval transit time on the compaction trend line of the specified depth of the non-drilled section is obtained; and in combination with the interval transit time prediction value of the specified depth of the non-drilling section, determining a formation pressure prediction value of the specified depth of the non-drilling section. The interval transit time and the formation pressure of the undrilled section can be accurately predicted based on the data of the drilled section, and the prediction result is accurate and reliable.

Method for securing communication between at least two participants (1, 2), each of whom has an identification (ID) and a security (PIN), and who communicate using this identification, preferably encrypted, wherein the participants (1, 2) exchange their identification (ID), wherein at least one of the participants (1, 2) communicates their position (P3, P4) to the other participant (2, 1) in addition to their identification (ID), wherein the position (PP3, PP4) of the participant (1, 2) is determined or queried by the other participant (2, 1), after which the other participant (2, 1) validates the participant (1, 2) by comparing the communicated position (P3, P4) and the determined or queried position (PP3, PP4), characterized in that the determined or queried position (PP3, PP4) of the participant (1, 2) is derived from the signal propagation times between the participant (1, 2) and satellites (3.1, 3.2, 3.3, 3.4) is calculated using the timestamp (T8, T9) and at least four satellites (3.1, 3.2, 3.3, 3.4) are included in the calculation.

Systems and methods are disclosed herein for syntonizing machines in a network. A coordinator accesses probe records for probes transmitted at different times between pairs of machines in the mesh network. For different pairs of machines, the coordinator estimates the drift between the pair of machines based on the transit times of probes transmitted between the pair of machines as indicated by the probe records. For different loops of at least three machines in the mesh network, the coordinator calculates a loop drift error based on a sum of the estimated drifts between pairs of machines around the loop and adjusts the estimated absolute drifts of the machines based on the loop drift errors. Here, the absolute drift is defined relative to a drift of a reference machine.

Method for determining position using an ultrasonic sensor system (10) comprising at least one ultrasonic sensor (12a, 12b, 12c, 12d), the method comprising the steps of: - generating a control signal (S10) for emitting an ultrasonic signal (18) at a time t s ; - Receiving within a time window at least one reflection signal (24) (S12) within the time window at a time t e and determining a position (S14) of an object (22) at which the ultrasonic signal (18) was reflected, wherein the position is determined based on the transit time of the ultrasonic signal (18); and - performing a measurement adjustment, wherein the measurement adjustment comprises either shortening the time window for receiving reflection signals (24) (S16a) or wherein the measurement adjustment comprises discarding the measured values ​​from the at least one ultrasonic sensor (12a, 12b, 12c, 12d) after the time defined by the threshold value or the time t e defined point in time until the end of the time window.

In accordance with one aspect, a system includes at least one processor and one or more memory storing instructions. The instructions, when executed by the at least one processor, cause the system at least to perform: displaying a geographical map region containing a physical address entered by a user; determining at least one geographical boundary including at least one of: a transit-time boundary or a transit-distance boundary with respect to the physical address; and displaying the at least one geographical boundary on the geographical map region.

A system for testing a transit time measuring apparatus (1) is described, the system comprising: a fluid circuit (2), comprising: a pressure vessel (3) which comprises at least one movable surface element, and a pump (4), wherein the pressure vessel (3) and the pump (4) are designed to interact in such a way that time-dependent changes in the length of a path (5) between one section of the surface element (9) and another section of the pressure vessel (10), over which path (5) the transit time is to be measured, are effected. Corresponding methods and uses of the system are also described.

The invention belongs to the technical field of intelligent logistics, and provides an intelligent linkage recommendation engine method based on multimodal transport, which comprises the following steps: S1, carrying out data acquisition; s2, performing data processing and feature extraction; the extracted key features comprise node capacity and a transit time threshold; s3, generating and optimizing a logistics scheme through an intelligent recommendation engine; the method comprises the following steps: carrying out space-time network modeling, modeling a multimodal transport network into a dynamic space-time diagram, carrying out node flow prediction and resource pre-allocation after modeling is completed, and generating a resource reservation voucher; the step comprises transfer time optimization execution: calculating an optimal operation time window through a time window scheduling algorithm based on a resource reservation voucher, and if the actual waiting time in the transfer process exceeds a certain proportion of a predicted value, triggering reinforcement learning dynamic adjustment and reallocating resources; and S4, interacting with a user, and outputting a recommendation scheme to the user. According to the method, the problem of resource conflict is solved, and the single-time transportation cost is reduced through multi-mode combined transportation path intelligent planning.

Techniques and systems for unlocking a first device based on signals transmitted between the first device and a second device are disclosed. A disclosed technique includes receiving, by a first device, at least one wireless signal from a second device; transmitting, by the first device, at least one wireless signal to the second device; determining, by the first device, transit times of the at least one received wireless signal and the at least one transmitted wireless signal; determining, by the first device, one or more range measurements between the first device and the second device based at least in part on the transit times; determining, by the first device, an unlock decision based at least in part on the one or more range measurements; and causing, by at least the first device, the first device to unlock if the unlock decision is positive.

Optoelectronic device with at least two optoelectronic circuits (2, 4a, 4b) for transmitting an optical clock signal to an electronic component (40-47, 74a, 74b), a control device (78a, 78b) for controlling the propagation times of the optoelectronic circuits and at least two electronic components (40-47, 74a, 74b), each of the at least two optoelectronic circuits (2, 4a, 4b) with: - a clock generation device (25) for generating the optical clock signal, - a converter element (30-37, 73a, 73b) for converting the optical clock signal into an electrical clock signal supplied to the electronic component (40-47, 74a, 74b), and - an optical line (60, 72a, 72b) from the clock generation device (25) to the converter element (30-37, 73a, 73b), wherein the optoelectronic circuit (2, 4a, 4b) has an adjustable optical element (60, 72a, 72b) for setting a propagation delay between the clock generating device (25) and the electronic component (40-47, 74a, 74b), where the optical line (60, 72a, 72b) is the adjustable optical element (60, 72a, 72b), wherein the transit time is adjustable by changing an optical length of the optical line (60, 72a, 72b), wherein the optical line (60, 72a, 72b) has a plurality of heating elements (61, 79a, 79b) for heating the optical line (60, 72a, 72b), wherein the optical length of the optical line (60, 72a, 72b) is adjustable for setting the transit time by heating the optical line (60, 72a, 72b), and wherein the control device (78a, 78b) is configured to individually control the individual heating elements (61, 79a, 79b) to generate a temperature gradient in order to compensate for a temperature gradient (62) within the optoelectronic device by means of this temperature gradient generated as a counter-gradient.

The invention relates to a method for determining a speed of a vehicle (10), in particular a rail vehicle (10), when traveling along a track (14), wherein the vehicle (10) comprises a first sensor unit and a second sensor unit (16b) which is identical in construction to the first sensor unit (16a) and arranged at a distance along a direction of travel of the vehicle (10) on the vehicle (10), and the method comprises the following steps: - reading in first sensor data acquired by the first sensor unit (16a) when traveling along the track (14) and second sensor data acquired by the second sensor unit (16b), wherein the first and second sensor data represent the same physical property of the track (14); - determining a propagation time difference based on the read-in first and second sensor data, which has a value from a set of predetermined quantized values ​​due to a quantization effect caused by a predetermined detection rate of the sensor units (16a, 16b); - Reading in a predetermined speed error information representing a statistical distribution of a speed error; and - Determining a speed of the vehicle (10) based on the determined travel time difference and the read-in speed error information by means of a computing unit (20) in order to provide a speed value or speed curve corrected taking into account the quantization effect.

A system including a processor and a non-transitory computer-readable media storing computing instructions that, when executed on the processor, cause the processor to perform certain operations: identifying a first transit time of a first load that is different from a second transit time of a carrier for the first load; tuning a load generation model using a slackness allowance function; generating, using the load generation model with the slackness allowance function engaged, multiple slackness time windows with corresponding slackness penalties for the first load; and determining a third transit time based on a slackness time window of the multiple slackness time windows and a corresponding slackness penalty for the first load. Other embodiments are disclosed.

In a method and an optical time-of-flight sensor for determining distance values d, di by an optical time-of-flight method, an illumination light 40 is emitted which is modulated with a modulation frequency f and a modulation phase q. Reflected light 42 is acquired as an output signal Rx and evaluated by acquisition of a phase shift δ between the illumination light 40 and the reflected light 42, so that an output signal d, di with at least one distance value d is generated. Distance values d, di are determined for a sequence of successive frames, with a plurality of acquisitions being made in each frame in the form of micro-frames μF1-μF8 with different modulation phases φ. A sequence of modulation phases φ1-φ4 of the micro-frames μF1-μF8 is specified for each frame. In order to achieve a particularly high reliability of the data supplied, the order of the modulation phases φ1-φ4 changes. A self-calibration and self-verification take place in an initialization step (60). The subsequent data acquisition takes place in frame acquisition steps 62 with acquisition of signals and calculation and output of the distance values for each pixel for subsequent processing (68). Each step (62) in the acquisition of a frame is divided into a setup step (64) and a subsequent acquisition of signals in micro-frames μF1-μF8. In setup step (64), the central processing unit MCU calculates (pseudo-)random numbers and uses these to determine the order of the micro-frames μF1-μF8, i.e. the respective modulation frequencies f and phase angles φ. Optical time-of-flight methods, in which the acquisition and signal evaluation are carried out with a variable order of modulation phases, are thus particularly suitable for safety-related applications, e.g. as optical area monitoring systems for industrial production facilities.

The invention provides an air-railway linked route optimization method based on convenience quantitative analysis. In the transit process of air-railway linked transportation, the travel experience, time cost and transit implicit cost of passengers are often ignored, and even the subsequent travel cannot be finished due to the fact that the transit travel plan is inappropriate and the delay of the preorder travel is superposed. The research focuses on a transfer linkage process in air-railway linkage transportation, combines actual conditions, selects five indexes including urban traffic reachable conditions, linkage time, linkage cost, linkage carbon emission and linkage comfort, and quantifies the convenience of a linkage route travel section between an airport and a railway station based on an AHP analytic hierarchy process according to a priority level selected by a user. And meanwhile, in combination with a necessary passing time expectation and a preorder travel delay time expectation of each hub station, giving an optimal reserved transit time recommendation of the interlink travel according to the complete forming confidence selected by the user, and giving a comprehensive convenience degree of the interlink route.

The invention relates to a method for determining the control unit temperature in a motor vehicle by means of Ethernet, comprising the steps of: determining a transit time of a first signal on a first connection path between a first server ECU of the Ethernet vehicle electrical system and a second server ECU of the Ethernet vehicle electrical system; determining a maximum speed of the first connection path on the basis of the transit time; identifying at least a first server ECU of the Ethernet vehicle electrical system; synchronising at least a first server ECU of the Ethernet vehicle electrical system; determining the synchronisation interval; determining a timestamp of the first server ECU; reading a timestamp or querying the clock time of the first server ECU; comparing the timestamp with a reference clock of the Ethernet vehicle electrical system; carrying out a transit time measurement; determining the speed of the associated clock generator; determining the time difference of the synchronisation interval; determining the last synchronisation.

The invention provides a measurement method, a measurement device, a measurement system, and a measurement program product, which can calculate a travel speed function with high precision when a railway vehicle travels on a bridge while decelerating or accelerating. A measurement method includes: an observation data acquisition step of acquiring observation data output from an observation device; a passage time calculation step for calculating, on the basis of the observation data, a bridge entry time at which the railway vehicle enters one end of the bridge and a bridge exit time at which the railway vehicle leaves the other end of the bridge, and calculating, as a passage time, the time of the difference between the bridge exit time and the bridge entry time; and a travel speed function calculation step, the distance between the stop position of the railway vehicle and the position of the end portion of the bridge near the stop position, and the length between the front surface of the head vehicle of the railway vehicle and the head axle are determined based on the passing time, the traveling distance of the railway vehicle in the passing time, the distance between the stop position of the railway vehicle and the position of the end portion of the bridge near the stop position, and the length between the front surface of the head vehicle and the head axle. And calculating a running speed function when the railway vehicle runs on the bridge.

The invention provides a production scheduling method and system, and the method comprises the steps: obtaining a production process of a target product, the production process comprising a plurality of process stages, and each process stage comprising a plurality of production stations; obtaining the process stage of the current production station, and when the process stage is in the middle process stage of the production process, according to the first position of the current production station, determining the production station which meets a preset scheduling condition and is closest to the first position as a target station; and controlling the production line to move the target product between the current production station and the target station. According to the method, the actual situation on a production line is fully considered, and the circulation time and the waiting time of the target product between the processes can be reduced to the maximum extent, so that the production efficiency is improved.