40 results about "Automatic vehicle location" patented technology

An automatic vehicle location (AVL) system where vehicles are provided with navigation devices (104) for which destination data may be transmitted from the AVL base computer system (102).

The invention discloses an automatic vehicle navigation method, a navigation pattern information compiling method and vehicle navigation equipment. The automatic vehicle navigation method includes: displaying navigation pattern information on a road; acquiring the navigation pattern information through the vehicle navigation equipment; and regulating vehicle running parameters by the vehicle navigation equipment according to the acquired navigation pattern information. By the automatic vehicle navigation method, a function of satellite-free automatic vehicle driving can be realized, and automatic vehicle navigation for culverts, tunnels and dense high-rise building districts can be realized. The ground navigation pattern information acts in a close range, so that accuracy is high. Implementation cost of the automatic vehicle navigation method is low, so that whole-system implementation cost in automatic vehicle navigation can be lowered effectively. In addition, automatic power transmission, automatic circuit switching for vehicle lane changing and the like can be achieved for electric vehicles during automatic navigation, so that wide-range application of electric vehicles can be availed, dependence of traffic systems on petroleum is lowered and application of wind power and nuclear power in road traffic systems is achieved.

An automated parking system comprising a multi-level vehicle parking structure including multiple parking spaces arranged in one or more rows on each level of said structure; and an automatic vehicle positioning system configured to position and retrieve vehicles in said one or more rows of parking spaces, and further configured to shift a parking space of one or more vehicles in one row for retrieving one or more other vehicles in said row.

The invention discloses a vehicle locating method based on matching of road surface image characteristics. The vehicle locating method based on the matching of the road surface image characteristics comprises the steps of determining geographical coordinates of an initial position of a vehicle, shooting road surface images in real time in the traveling process of the vehicle, carrying out dogging processing on two shot current continuous frames of the road surface images in sequence, carrying out matching on the two continuous frames of the road surface images processed through the dogging in real time to obtain matching dot pairs of the two continuous frames of the road surface images, carrying out vehicle location on the vehicle according to the obtained matching dot pairs, judging whether the current two frames of the images are the last two frames or not, ending the process if the current two frames of the images are the last two frames, and otherwise repeating the steps. According to the vehicle locating method based on the matching of the road surface image characteristics, the road surface images only need to be collected in real time in the traveling process of the vehicle, and matching is carried out on the two continuous frames of the road surface images so that automatic vehicle location can be achieved; the method is not prone to interference, high in location precision and capable of saving time and labor due to the fact that the time-consuming and labor-consuming link of collecting all-dimensional street scenes in advance in an existing locating method is saved.

A system and method are presented to provide radio and GPS coverage versatility in a location-based service (LBS) system, such as an automatic vehicle location (AVL) system. A mobile client in communication with one or more servers of an LBS system includes one or more mobile communication devices and one or more GPS devices for establishing a position of the client. The client is configured to determine whether none of the one or more GPS devices provide the server access to the position through a wireless protocol implemented therewith, or whether the position should be communicated to the server using the one or more communication devices.

Methods of estimating vehicle location in a roadway using an automatic vehicle identification system are described. The methods involve receiving a set of response signals from a vehicle-mounted transponder at points in time and determining a range rate of the transponder relative to the antenna at each point in time; identifying a minima in the magnitude of the range rate; estimating a first position of the transponder at a first time corresponding to the occurrence of the minima; estimating a velocity of the vehicle based upon one or more of the determined range rates; and estimating a second position of the transponder based upon the first position and the velocity.

Digital media assets depicting or otherwise representing portions of a property are captured via a media capture device, such as an unmanned vehicle, at various locations about a property. A positioning receiver tracks the location of the media capture device when each digital media asset is captured. A computing device associated with either the media capture device itself or a network-connected server automatically generates location-based categories—such as “front side” or “rear side” or “living room”—automatically based on the plurality of locations so that each location-based category is associated with multiple digital media assets and their corresponding locations.

The various embodiments herein provide an automatic vehicle load monitoring system and navigation monitoring system. The system comprises a weight sensing device attached to a base of a vehicle, and wherein the weight sensing device is a load cell, a compression spring attached to the weight sensing device and to a suspension spring of the vehicle, a voltage conversion unit attached to the weight sensing device to convert an output resistance of the load cell into a voltage, an automatic vehicle location (AVL) system connected to the voltage conversion unit to receive the output voltage from the voltage conversion unit and a central server connected to the AVL to receive a vehicle location data and a voltage data for computing a vehicle load at an instant. The vehicle location data and the vehicle load at any instant is communicated simultaneously to a driver of the vehicle.

The invention discloses a public traffic operation service quality evaluating system, which can comprehensively reflect the evaluation on operation service quality by the subject (flee) and object (passengers) of public traffic operation service, provides a new angle of view for public traffic service evaluation on the basis of online and on-file automatic vehicle positioning data, and can provide decision support in optimizing operation policy, improving service level and demonstrating the actual and boundary effects of improvement on service measures on enhancement of service for public traffic operating enterprises and provide a corresponding theory and a corresponding method for controlling the quality of the public traffic operation service for the management department of the public traffic industry to realize the aim of the invention.

The invention provides a validity detection method of a memory block, which mainly comprises the following steps of: obtaining a start address and an end address of a memory pool in a memory management system; retrieving AVL (Automatic Vehicle Location) trees of free memory blocks in the memory management system, collecting the information of all the free memory blocks, storing in an array manner and sequencing according to the addresses of the memory blocks from low to high; judging whether a free block exists, detecting the validity of the current free block if the free block exists and finishing detection if the free block does not exist; and taking the memory block as a poor block if the memory block can not pass the validity test, prompting the position and the detailed information of the poor block and obtaining the circle detection of a next free block. The memory block validity detection method has the beneficial effects that on the basis that the existing organization structure of the memory block is not expanded, and any mark consumption additional memory is not required to be increased, the poor memory block existing in the memory management system can be effectively detected, and the position and the information of the poor block are prompted to facilitate a developer to position the existing reason of the poor block.

A traffic signal control method and system reduces the delay time of a transit vehicle at an intersection by incorporating an automatic vehicle location (AVL) system to trigger a traffic signal priority (TSP) strategy with a chain of mobile events to determine the correct timing, location, conditions, and/or other mobile events that may trigger a TSP action. The traffic signal control can also be used to notify vehicle status in passenger/traveler information systems such as street signs, to monitor the wait time at an intersection or bus stop, and in any application that relates to vehicle entry into a given location and a consequence of actions that may be associated with the location.

The invention relates to an automatically-guided transport cart. Images recording position information are arranged on the ground of a warehouse every other distance and are used for location and navigation, and an image recording cargo information is arranged on the lower portion of a goods shelf and is used for recording the cargo information. A power source drives driving wheels so that the automatically-guided transport cart can move to the position below the goods shelf. A first camera recognizes the image at the bottom of the goods shelf and transmits the image information at the bottomof the goods shelf to a controller. The controller controls a bearing platform to jack up the goods shelf through lifting assemblies and/or rotation assemblies. A second camera recognizes the corresponding image, recording the corresponding position information, on the ground and transmits the position image information on the ground to the controller. The controller controls movement of the driving wheels so that automatic location and navigation can be achieved. When cargos are transported through the automatically-guided transport cart, automatic location, navigation and carrying can be achieved, the automation degree can be effectively improved, efficiency can be improved, mistakes can be reduced, and the labor cost can be saved.

A communication system is provided that analyzes event-related media by correlating various media content based on the media being time-wise proximate to each other. Thereby, the communication system provides an informational tool for law enforcement agencies to correlate different media that all relate to a same event, such as subject matter media with related discussion media. For example, the subject matter media may comprise video, video stills, biometrics, sensor data, Automatic Vehicle Location (AVL) data, pictures, BOLO (Be On the LookOut) bulletins, and the like, while the related discussion media may comprise Push-to-Talk talkbursts, telephone conversations, Instant Messaging (IM), emails, and other forms of discussion media. By correlating such media, the communication system facilitates event or incident reconstruction by providing related media together when providing event or incident playback.

The invention discloses an AR-HUD navigation system utilizing GPS data. By virtue of the system, Mars coordinates of GPS are converted into waypoints; a path planning curve is formed, and key nodes are acquired; the GPS is mapped onto the path planning curve to obtain a current location of a vehicle; the GPS vehicle location at every moment is calculated; the vehicle location at every moment is predicted according to the real-time vehicle speed information; the optimum vehicle location at each moment is obtained; when novel GPS positioning data is acquired, the current location of the vehicleis compared with the optimum vehicle location, when the difference is greater than a threshold value, the optimum vehicle location is reset and is enabled to be equal to the current location; the acquired location data is mapped onto the path planning curve to determine a path type and a distance to a next key node; and a result is outputted, and a navigation animation is generated. The inventionalso discloses an AR-HUD navigation method utilizing GPS data. By adopting the AR-HUD navigation system and method, the GPS error, the low refreshing frequency and the low real-time property are compensated and optimized, and the AR-HUD navigation system and method have continuity, high precision and high real-time property.

The invention provides an automatic vehicle hook for a motor train unit traction vehicle. The automatic vehicle hook comprises the traction vehicle, a locking mechanism for connecting and locking the motor train unit vehicle hook, a device for lifting and pulling the locking mechanism, a gravity balance device for adjusting lifting of the locking mechanism and a slide way for lifting of the locking mechanism. The slide way is of a box iron structure and fixed to the traction vehicle, one end of the device for lifting and pulling the locking mechanism is fixed to the slide way, the other end of the device is connected with the front end of the locking mechanism, and the locking mechanism is connected with the gravity balance device for adjusting lifting of the locking mechanism through a pulley type floating connection plate. According to the automatic vehicle hook, manual operation is not needed, the labor intensity of workers can be remarkably lowered, and meanwhile the work risk caused by manual vehicle pushing in a high-low platform, a ditch and the like is greatly lowered; eight persons were needed to work jointly to push the traction vehicle each time before while now, only one person is needed to push the traction vehicle, production efficiency is improved, the industrial automated level of the motor train unit manufacturing process is increased, traction and braking reliability is higher, and the damage risk is avoided.

The invention relates to a method for monitoring the operation state of a public transport network, belongs to the technical field of intelligent transportation, and particularly relates to the methodfor monitoring the operation state of the public transportation network based on low frequency AVL (Automatic Vehicle Location) data. The method utilizes road geographic information, public transportation AVL data, and site location information, and realizes the operation state monitoring for the public transportation network through the process of public transportation network segment division,public transportation AVL data map matching, data cleaning, sample data construction, sparse data filling, and public transportation network operation situation assessment. The method for monitoring the operation state of the public transportation network based on the low frequency AVL data can provide decision-making basis for urban general traffic system management, customized public transportation network optimization, and public transportation operation scheduling.

A full-automatic vehicle cover comprises a vehicle cover casing, a vehicle cover support, a bearing, a gear, an extensible support fixing point, an extensible support strip, motors, reels, a drawing wire, a support operation groove, drawing wire operation holes, lifting frameworks, fork supports of the lifting frameworks, a beam casing, a vehicle cover layer, a beam bearing and a remote control; the vehicle cover casing is hung above a vehicle trunk through hooks from inside the vehicle trunk; one end of the vehicle cover layer is fixed on the vehicle cove bearing and the other end of the vehicle cover layer is fixed on the beam casing; an extensible support and the lifting frameworks are fixed on the vehicle cover casing; middle positions of the two lifting frameworks are provided with intersection supporting points; the heads of the lifting supports are provided with the fork supports of the lifting frameworks; a central position of the beam bearing is provided with the gear; and a rubber wheel is sleeved at other positions of the beam bearing.

The invention discloses an implementation method achieving automatic location of Bills of Material (BOMs) and supporting a plurality of planning strategies. The implementation method belongs to the technical field of computers. The method is characterized in that: the most appropriate BOM is found out for production planning and scheduling by an automatic addressing algorithm according to the differences of product planning strategies, wherein the maintenance of the BOM can support a plurality of service attributes and custom attributes; each planning strategy corresponds to a plurality of BOMs; the plurality of service attributes of each product of the BOM have priorities; the priorities are appointed according to the planning strategies or appointed manually; and the custom attributes are correlated according to the specific service attribute and are used as service identification of the special BOM. Compared with the prior art, the implementation method achieving automatic location of the BOMs and supporting a plurality of planning strategies has the characteristics of intelligence, conciseness, intuition, etc.