Abstract: An off-road dump truck includes a vehicle body, a peripheral recognition device, and an obstacle discrimination device. The peripheral recognition device detects obstacle candidates in front of the vehicle body. The obstacle discrimination device classifies the obstacle candidates, which were detected by the peripheral recognition device, into obstacles and non-obstacles and outputs, as obstacles, the obstacle candidates classified as obstacles. The obstacle discrimination device includes a travel state determination section, a distance filter section, and a reflection intensity filter section. The travel state determination section determines whether each obstacle candidate is a moving object or a stationary object. The distance filter section compares a distance, where the stationary object was first detected, with a distance threshold.

Abstract: A wagering game apparatus in which a processor identifies wagers, reports wagering game results, and resolves wagers. The game apparatus includes a first player position. A first player seat and first player input controls are located at the first player position. The first player input controls are in communication with the processor, and may enable entry of wagers, game selection, strategy execution, and accounting functions including ticket-in, ticket-out functionality. The apparatus may also include a second player position. The second player position includes a second player input control that is in communication with the processor and enables wagering on any wagering game played on the apparatus.

Abstract: Disclosed herein is an operating method of a reader in a radio frequency identification (RFID) system. In the method, a reader operates in a tag information collection mode in which tag information is collected from a plurality of tags and a tag recognition mode in which a frame of a predetermined size calculated according to the number of tags operating in each frame is allocated based on the tag information and at least some of the plurality of tags are recognized.

Abstract: Various embodiments relate to a network monitor and method thereof for receiving a plurality of alarms during a baseline period from a plurality of network elements, establishing a baseline for at least one of the plurality of the network elements by determining a number of the plurality of alarms during the baseline period that occur during each of a plurality of sub-intervals within the baseline period, calculating a mean arrival rate for each of the plurality of alarms during the baseline period, generating a probability density function for an arrival rate for each of the plurality of alarms during the baseline period, calculating a probabilistic score for each of a plurality of alarms during a test period based on the probability density function for the arrival rate of each of the plurality of alarms during the baseline period, determining if the score for each of the plurality of alarms during the test period is greater than or equal to a probabilistic threshold, summing the number of the scores for ea

Abstract: A heating system for an aircraft or spacecraft with a control device which includes at least one power line data transmission transceiver and one sensor controller, and at least one remote component which has a sensor element and a heating element, the at least one power line data transmission transceiver being connected to the at least one remote component via a connecting cable, the control device being designed to supply the at least one heating element with power via the connecting cable and the sensor controller being designed to exchange first control signals with the sensor element via the connecting cable.

Abstract: The present invention pertains to a remote control system, the objective being to improve operability. A main body communication control unit 13 of a display device 7 permits connection to a remote controller 8 when not being in a connected state to a remote controller 9 when the connection is requested from the remote controller 8, and on the other hand, disapproves the connection to the remote controller 8 and prompts the remote controller 8 to be connected to the remote controller 9 when being in the connected state to the remote controller 9 when the connection is requested from the remote controller 8.

Abstract: A non-cellular wireless entertainment phone device may have at least two modes of operation. Each of the modes of operation may have a particular set of functionality. A first set of functionality may allow phone communications through a cellular phone, a wireless device, or the Internet. Additional functionality may transform the device into an entertainment device/child's toy or other types of devices such as a remote control, game controller, two-way radio transceiver, motion sensor, etc. A control signal may be sent from another device to cause a switching between modes.

Abstract: Method for connecting wireless electric actuating devices (2) to a medical appliance (1) via a wireless communication channel, having the steps of initiating the connection operation for a wireless electric actuating device (2) to a medical appliance (1) and performing a connection procedure, in which the actuating device (2) is assigned to the medical appliance (1), characterized in that the initiation of the connection operation is carried out from the medical appliance (1).

Abstract: A method and system for challenge-response authentication are provided. Challenge data are transferred within an anti-collision loop from a reading device to a transponder by means of one or more commands of an anti-collision method, with the one or more commands serving to determine transponder identification data. In the one or more commands respective challenge data are contained in a data field that is used for specifying transponder identification data, wherein it is indicated to the transponder by a parameter value in the at least one of the one or more commands that the data field of the one or more commands contains challenge data instead of transponder date. The transponder recognizes with the help of the parameter value that in the received one or more commands challenge data are contained. The transponder processes the transferred challenge data based on the challenge response authentication.

Abstract: In a method for warning a driver of a vehicle about a collision with an object in the course a parking operation, the distance of the vehicle to at least one object in the environment of the vehicle is detected, and if a specified minimum distance is undershot, the driver is warned to stop the vehicle or the vehicle is stopped automatically. The specified minimum distance is varied as a function of the type of parking space and the executed parking maneuver.

Abstract: A system 1 for monitoring the area around a vehicle of the present invention capable of visually notifying the passenger in the vehicle 10 of not only the presence but also the kind of an object in images around the vehicle displayed in an HUD 7, for example, according to a difference in the display mode of the presence of the object, wherein the driver of the vehicle 10 is able to recognize which of a human or a four-footed animal the object belongs to, according to either a difference in the design between a first mark M1 and a second mark M2 or a difference in the design between a first frame F1 and a second frame F2 displayed on the HUD 7.

Abstract: The present invention provides a system and method for an improved player tracking in a gaming environment. Certain embodiments include a plurality of radio frequency identification (RFID) readers for detecting a response signal from an RFID tag, an RFID tag generating a response signal including identification data in response to an interrogation signal transmitted by one of the plurality of RFID readers, and a location manager controlling transmission by the plurality of RFID readers according to at least one collision-avoidance scheme. The collision-avoidance scheme may include one or more of the following schemes: localized RFID reader managers coordinating electrical operation of the plurality of RFID readers, an active RFID reader transmitting the interrogation signal and a plurality of passive RFID readers listening for the response signal, an RFID reader multiplexed through a plurality of antennas, TDMA, CDMA, and/or quasi-random synchronization for the RFID readers, for example.

Abstract: The present invention relates to a system for controlling an air conditioner and method for controlling the same, and more particularly, to a system for controlling an air conditioner and method for controlling the same which can make real time control for maintaining system reliability, can make real time control of air conditioners while minimizing a network load to minimize a load on a server, and can prevent transmission and reception delay of a data.

Abstract: An RF tag reader and writer is provided which includes: a communication unit that communicates with one or more RF tags as an information acquisition target using an anti-collision method of avoiding a collision between signals and that performs an acquisition process of acquiring tag information which is information stored in the one or more RF tags; and a communication success rate calculator that calculates a communication success rate of the communication unit with the one or more RF tags on the basis of the number of times by which the communication unit successfully acquires the tag information from the one or more RF tags within a predetermined period and the number of times by which the communication unit performs a communication process with the one or more RF tags in a state where the collision between signals is avoided within the predetermined period.

Abstract: The present invention relates to a method for determining an optimal frame size for tag collision prevention in an Aloha-based RFID system in which frame sizes limited to a certain unit are used to identify tags, the method including the steps of using an RFID for: (a) calculating an estimated optimal frame value for the RFID reader identifying the tags; (b) calculating expected time delays per tag of a left-hand frame size and a right-hand frame size, which show the smallest differences with respect to the estimated optimal frame value, among the frame sizes; (c) comparing, the expected time delay per tag of the left-hand frame size with that of the right-hand frame size; and (d) determining a frame size which has a smaller expected time delay per tag, between the left-hand frame size and the right-hand frame size, to be an optimal frame size.

Abstract: A method and system are provided for minimizing metal detection signal interference by dividing a standard EAS system metal detection burst timeslot into a plurality of timeslots per burst in order to minimize triggering metal detection false alarm signals between adjacent metal detection systems. The method and system include synchronizing a plurality of metal detection systems by generating a signal having a predefined time duration and segmenting the signal into multiple timeslots per signal. A selected timeslot that is assigned to each of the plurality of metal detection systems is stored and the system performs metal detection using the assigned timeslot.

Abstract: A method of recognizing a tag in an RFID reader includes: obtaining a predetermined frame size in the case where throughput obtained by reflecting a slot length based on the remaining number of tags except for recognized tags within a frame progressing current tag recognition that substantially has a maximum value; and when the current frame size is different from the predetermined frame size, stopping the current progress of frame and changing the current frame size into the expected frame size. The method of recognizing a tag may further include when the current frame size is equal to the expected frame size, changing the current frame size into the frame size that does not cause a throughput inversion phenomenon for the remaining number of tags to be recognized within the frame progressing the current tag recognition. By the throughput inversion phenomenon, the occurrence of throughput loss can be prevented and the tag recognition time is reduced to recognize the tags at high speed.

Abstract: The disclosure relates to an apparatus for communicating with an RFID tag: including a radio communication device; a tag number estimation portion configured to estimate the number of RFID tag circuit elements in a peripheral area of the apparatus; a storage device configured to store a list of identification information of each of a plurality of RFID tag circuit elements; and a mode switching portion configured to switch a mode into a plural tag detection mode in which identification information is sequentially specified in the list stored in the storage device before the RFID tag circuit element corresponding to the specified identification information is detected through the radio communication device, or a response determination mode in which identification information is obtained from each of all the RFID tag circuit elements in the peripheral area through the radio communication device.

Abstract: Communicating among stations in a network includes, from each of multiple stations in the network, transmitting information indicating which other stations from which that station is able to reliably receive transmissions. A schedule for communicating among the stations is determined based on the information from the stations and transmitting the schedule over the network. The schedule includes a plurality of time slots during which respective sets of stations are assigned to communicate using a contention-based protocol.

Abstract: A vehicle has wheels, sensors for generating an input data set, and a controller. The controller is in communication with the sensors, including a first sensor for detecting an obstacle on a road surface in a first manner, and adapted to monitor a boundary of the road surface to determine when the wheels are crossing the boundary. A second sensor detects the obstacle in a second manner, and additional sensors determine inertial data of the vehicle. The controller compares the input data set to calibrated thresholds, and determines an appropriate control response such as autonomous braking based on the results. A method optimizes a collision preparation response in the vehicle by measuring the inertial data, detecting the obstacle using a radar or LiDAR device, and monitoring the boundary using an electro-optical device. A supplemental braking force is automatically applied when the vehicle crosses the boundary while the obstacle is detected.

Abstract: A vehicle (2) comprises sensor units (10) for collecting sensor data, and a processing unit (11) for processing the sensor data. A method of providing driving assistance information comprises the steps of: determining the cost (c) of pairs (30, 31, 32) of acceleration values on the basis of the sensor data, each pair of acceleration values representing a longitudinal (a lon) and a lateral (a lat) acceleration of the vehicle, —selecting a pair (32) of least cost acceleration values, and—providing driving assistance information including the pair of least cost acceleration values. The processing unit (10) may be arranged for providing visible, audible and/or haptic driving assistance information to the driver of the vehicle, and/or for providing steering assistance.

Abstract: The present invention provides a system and method for an improved player tracking in a gaming environment. Certain embodiments include a plurality of radio frequency identification (RFID) readers for detecting a response signal from an RFID tag, an RFID tag generating a response signal including identification data in response to an interrogation signal transmitted by one of the plurality of RFID readers, and a location manager controlling transmission by the plurality of RFID readers according to at least one collision-avoidance scheme. The collision-avoidance scheme may include one or more of the following schemes: localized RFID reader managers coordinating electrical operation of the plurality of RFID readers, an active RFID reader transmitting the interrogation signal and a plurality of passive RFID readers listening for the response signal, an RFID reader multiplexed through a plurality of antennas, TDMA, CDMA, and/or quasi-random synchronization for the RFID readers, for example.

Abstract: The present invention relates to an RFID reader and a method thereof, and an RFID data processing method. The RFID reader generates a specific query message to a plurality of RFIDs, receives a first response message corresponding to the query message from at least one RFID among the RFIDs, and sequentially identifies a tag ID of a collided RFID by using a collision solving message when a collision occurs according to the result of receiving a first response message. The RFID reader can quickly and accurately identify a plurality of RFIDs since it can eliminate an unnecessary time such as excessive no response slot generation or repeated rounds through a sequential identification process for the collided RFIDs.

Abstract: A location system comprises a plurality of transponders whose locations are detectable by a base system. The base system interrogates (51-55) the transponders one at a time in accordance with a schedule of consecutive time slots. In response to a priority request received (53) from one of the transponders, the base system interrupts the schedule and interrogates substantially immediately (56, 57, 55) the signaling transponder so as to determine its location with minimal latency.

Abstract: Provided are an active radio frequency identification (RFID) system for port logistics and a communication method in the RFID system in which the forms of commands and response messages in the current standard are not changed in order to maintain compatibility with the current standard and to support multi-hop communication and some fields that are not generally used are used so as to enable communication between a tag in a shadow area and a reader by multi-hop communication using other surrounding tags.

Abstract: A radio frequency identification device (RFID) tag includes a processor, a memory configured to store an identification number that distinguishes the tag from other tags, and a transponder coupled to the memory and the processor. The tag arbitrates by selecting a random number in response to an inventory query from a reader. The tag responds to the reader depending on the random number selected. The tag is configured for multiple concurrent inventory session arbitrations with multiple readers by separately storing random numbers for respective inventory session arbitrations.

Abstract: There is provided an interrogator, transponder, and transponder identification method, which shorten processing time for identification. An interrogator that makes wireless communication with a transponder, comprising: a temporary number specify section that transmits a request for transmission of a unit bit string as a bit string having a predetermined length in a bit string expressing a temporary number owned by the transponder, receives a unit bit sting transmitted from the transponder in response to the request, and specifies the temporary number of the transponder, based on the unit bit string; and an identification information obtaining section that transmits, if a temporary number of a transponder is specified by the temporary number specify section, a request for transmission of identification information of the transponder to the transponder, and receives the identification information transmitted from the transponder, in response to the request.

Abstract: For creating a route plan for a group of agricultural working machine systems for working a territory, the machine systems include route planning data determination devices and they exchange data with each other and, based on exchanged route planning data, one shared route plan is created for the particular territory. For controlling a group of agricultural working machine systems while it works a territory, one shared route plan—which has been created accordingly—is used, and a route planning system is provided for creating a route plan for a group of agricultural working machine systems to be used to work a territory.

Abstract: The present application discloses a system and a method for tag estimation and anti-collision in an RFID system, which can estimate an exact number of tags within an RF area and can rapidly identify tags by using the estimated number of tags in an RFID system. The system includes an RFID reader and RFID tags. The RFID reader includes an identification means, a collision management means, a tag number estimation means, and a reader control means. The RFID tag includes a tag communication means, a message reading means, a counter management means, an information storage means, and a tag control means. The disclosed system and method can prevent occurrence of too many idle times slots in the DFSA and too many initial collisions in the binary tree scheme, and thus can identify a large number of tags at a high speed with a small number of time slots.

Abstract: An RFID (radio frequency identification device) tag comprising a processor; a memory configured to store an identification number that distinguishes the tag from other tags; a transponder coupled to the memory and the processor, the tag being configured to arbitrate by selecting a random number, in response to an inventory query from a reader, and to respond to the reader depending on the random number selected, the tag being further configured for multiple concurrent inventory session arbitrations with multiple readers by separately storing random numbers for respective inventory session arbitrations. RFID readers, systems, and methods are also provided.

Abstract: A collision avoidance system for a mobile unit includes an image capturing unit for capturing an image of an environment surrounding a mobile unit. Motion vector is calculated based on the captured image. Collision probability is calculated based on the motion vectors of the image. The system includes a plurality of receptive field units that are modeled on the optic lobe cells of the flies. Each of the receptive field units includes a filter producing an excitatory response to the motion vector diverging from the center of the receptive field in the central area of the receptive field and producing an inhibitory response to the motion vector converging toward the center of the receptive field in the areas around the central area. The outputs of the receptive field units are compared to determine a direction in which the obstacle approaches the mobile unit. The mobile unit moves in a direction to avoid collision.

Abstract: A nonresponse-ratio determining unit determines, after starting a signal transmission to an electronic tag, whether a ratio of number of nonresponses from the electronic tag exceeded a predetermined value in a first predetermined period. A signal-transmission terminating unit terminates, when it is determined that the ratio of the number of nonresponses exceeded the predetermined value, the signal transmission for a second predetermined period. A radio-frequency-identification interrogator performs, after a lapse of the second predetermined period, a communication-channel selecting process for restarting the signal transmission to the electronic tag.

Abstract: Circuit for a data carrier, which circuit is capable of supplying identification information to a communications arrangement.

Abstract: A low cost, robust, wireless sensor that provides an extended period of operability without maintenance is described. The wireless sensors are configured to communicate with a base unit or repeater. When the sensor unit detects an anomalous ambient condition (e.g., smoke, fire, water, etc.) the sensor communicates with the base unit and provides data regarding the anomalous condition. The sensor unit receives instructions to change operating parameters and/or control external devices.

Abstract: The present application discloses a system and a method for tag estimation and anti-collision in an RFID system, which can estimate an exact number of tags within an RF area and can rapidly identify tags by using the estimated number of tags in an RFID system. The system includes an RFID reader and RFID tags. The RFID reader includes an identification means, a collision management means, a tag number estimation means, and a reader control means. The RFID tag includes a tag communication means, a message reading means, a counter management means, an information storage means, and a tag control means. The disclosed system and method can prevent occurrence of too many idle times slots in the DFSA and too many initial collisions in the binary tree scheme, and thus can identify a large number of tags at a high speed with a small number of time slots.

Abstract: A location system comprises a plurality of transponders whose locations are detectable by a base system. The base system interrogates (51-55) the transponders one at a time in accordance with a schedule of consecutive time slots. In response to a priority request received (53) from one of the transponders, the base system interrupts the schedule and interrogates substantially immediately (56,57,55) the signalling transponder so as to determine its location with minimal latency.

Abstract: The present invention provides a system and method for an improved player tracking in a gaming environment. Certain embodiments include a plurality of radio frequency identification (RFID) readers for detecting a response signal from an RFID tag, an RFID tag generating a response signal including identification data in response to an interrogation signal transmitted by one of the plurality of RFID readers, and a location manager controlling transmission by the plurality of RFID readers according to at least one collision-avoidance scheme. The collision-avoidance scheme may include one or more of the following schemes: localized RFID reader managers coordinating electrical operation of the plurality of RFID readers, an active RFID reader transmitting the interrogation signal and a plurality of passive RFID readers listening for the response signal, an RFID reader multiplexed through a plurality of antennas, TDMA, CDMA, and/or quasi-random synchronization for the RFID readers, for example.

Abstract: A low cost, robust, wireless sensor that provides an extended period of operability without maintenance is described. The wireless sensors are configured to communicate with a base unit or repeater. When the sensor unit detects an anomalous ambient condition (e.g., smoke, fire, water, etc.) the sensor communicates with the base unit and provides data regarding the anomalous condition. The sensor unit receives instructions to change operating parameters and/or control external devices.

Abstract: A method and apparatus for recording data concerning a system is provided. The apparatus comprises a memory card, such as a COMPACTFLASH card, and a processor unit, such as a T2CAS processor unit. The memory card includes a supplemental file that contains instructions as to what data is to be recorded and when the recording should start and stop. To conserve space the supplemental file is written as a sequence of hexadecimal characters whose position in the sequence and binary bit value indicates which data is to be recorded and when. A lookup table can be used to interpret the supplemental file. The processor unit includes or is coupled to a memory card reader/writer.

Abstract: A low cost, robust, repeater for a wireless ambient sensor system that provides an extended period of operability without maintenance is described. The repeater includes a controller and first and second transceivers. The controller is configured to control operation of said first transceiver and said second transceiver. The wireless repeater includes a repeater identification. The controller is configured to manage a sensor unit identification table that contains a list of sensor unit identification codes, where entries for the sensor unit identification table are received by the second transceiver from the base unit and identified by the repeater identification. The controller controls the first transceiver and the second transceiver to forward data from sensor units listed in said sensor unit identification table and to ignore data from sensor units not listed in said sensor unit identification table.

Abstract: An object location monitoring system includes beacons that are spatially distributed throughout an area to be monitored. The beacons transmit interrogation signals that are received and echoed by transponders that attach to moveable objects. Each beacon retransmits its interrogation signal, and any transponder response thereto, to a receiver that measures a time difference between the two signals. This time difference reflects the signal propagation time, and thus the distance, between the beacon and the transponder. One such receiver preferably analyzes the retransmitted signals of multiple (e.g., 50 to 100) beacons. A triangulation method is used to determine the location of each transponder based on the transponder's distances from a set of beacons. In one embodiment, the transponders are provided as or within disposable ID bracelets worn by patients, and are used to track the locations of the patients within a hospital.

Abstract: A building monitoring system is disclosed that includes a bi-directional radio link between a master and a number of remote units, wherein the master unit schedules the transmission times of the remote units to avoid collisions.

Abstract: The invention relates to a system including an apparatus and a plurality of remote controls. Each remote control is equipped with a detector for detecting infrared signals from the other remote controls. The remote controls are capable of controlling the transmission of messages in dependence on a detection of signals from the other remote controls. In this way, collision between signals from different remote controls is prevented.

Abstract: The contactless IC card, the responding method, and the program that control the collision of response to the minimum, wherein the response judgment unit judges whether there is an initial response of the other contactless IC card at a specific time, and the response slot changing unit change the specific time based on the judgment result of the response judgment unit.

Abstract: A reader unit for use in a radio frequency identification (RFID) system delays the initiation of an interrogation operation when potentially interfering radio frequency (RF) energy is detected within an operational frequency range of the system. The reader unit waits a quasi-random period of time after the detection and then senses the spectral environment again to determine whether the energy is still present. If the energy is still present, the reader unit waits another quasi-random period and the process repeats. If there is no energy present or the energy is below a threshold value, the reader unit immediately initiates the interrogation operation. By delaying the initiation of the interrogation operation until the operative frequency range is free of potential interferers, the likelihood of harmful interference effects is significantly reduced.

Abstract: The electronic system, especially a security system, includes a number of different units that access a network according to a multiple access protocol, which is designed to minimize collisions between frames while reducing bandwidth requirements. The units may monitor different spatial regions according to several different criteria. Respective units that monitor according to correspondingly different criteria in a given spatial region may be assembled into one group and units that monitor different spatial regions but according to the same criterion may be assembled into another group. Each of the units of the one group are provided access to the network in one concurrent time slot, while the units of the other group are provided access to the network in a different concurrent time slot.

Abstract: A parent node transmits a third specific message to child nodes as a broadcast message if a first specific message indicating the start of the child node collides with another message so that normal receiving cannot be performed. Then, the parent node sequentially transmits second specific messages to each child node and then receives responses to recognize the states of the children nodes. The parent node transmits a specific message indicating a realization of a sleeping state as a broadcast message to the children nodes, followed by transmitting a specific message when data to be transmitted from the child node has been generated. The parent node cancels the sleeping state when it receives the specific message.

Abstract: The invention relates to a system comprising an apparatus and a plurality of remote controls. Each remote control is equipped with a detector for detecting infrared signals from the other remote controls. The remote controls are capable of controlling the transmission of messages in dependence on a detection of signals from the other remote controls. In this way collision between signals from different remote controls is prevented.