Abstract: Systems and methods for reading Radio Frequency Identified (RFID) tags. In an embodiment, an enclosure having, within it, an antenna and processor is provided. The processor may be configured to record tag observations for tag identifiers received by the antenna from RFID tags. For one or more time intervals, tag observations may be identified which satisfy a tag filter, and a confidence that RFID tags satisfying the tag filter were in the field of view of the antenna during the time interval may be computed based on the identified tag observations. According to an embodiment, reports for tag filters may be then generated using the computed confidences, and these reports may be transmitted to an external system over a network.

Abstract: Systems and methods for reading Radio Frequency Identified (RFID) tags. In an embodiment, an enclosure having, within it, an antenna and processor is provided. The processor may be configured to record tag observations for tag identifiers received by the antenna from RFID tags. For one or more time intervals, tag observations may be identified which satisfy a tag filter, and a confidence that RFID tags satisfying the tag filter were in the field of view of the antenna during the time interval may be computed based on the identified tag observations. According to an embodiment, reports for tag filters may be then generated using the computed confidences, and these reports may be transmitted to an external system over a network.

Abstract: Systems and methods for reading Radio Frequency Identified (RFID) tags. In an embodiment, an enclosure having, within it, an antenna and processor is provided. The processor may be configured to record tag observations for tag identifiers received by the antenna from RFID tags. For one or more time intervals, tag observations may be identified which satisfy a tag filter, and a confidence that RFID tags satisfying the tag filter were in the field of view of the antenna during the time interval may be computed based on the identified tag observations. According to an embodiment, reports for tag filters may be then generated using the computed confidences, and these reports may be transmitted to an external system over a network.

Abstract: Systems and methods for reading Radio Frequency Identified (RFID) tags. In an embodiment, an enclosure having, within it, an antenna and processor is provided. The processor may be configured to record tag observations for tag identifiers received by the antenna from RFID tags. For one or more time intervals, tag observations may be identified which satisfy a tag filter, and a confidence that RFID tags satisfying the tag filter were in the field of view of the antenna during the time interval may be computed based on the identified tag observations. According to an embodiment, reports for tag filters may be then generated using the computed confidences, and these reports may be transmitted to an external system over a network.

Abstract: A Pluggable small form-factor UHF Radio Frequency ID reader having in an enclosure: a host CPU; volatile memory; non-volatile memory; power inputs; digital circuitry comprising the CPU and supporting components; analog circuitry comprising power and Radio Frequency components; one or more antennas; networking components; user interface components; debug and test components; WiFi subsystem; Radio Frequency ID subsystem; wherein said enclosure comprises thermal dissipation capacity, radio frequency transparency with WiFi and Radio Frequency ID antennas, provides protection from physical and radiofrequency forces, is mountable to an AC outlet and can also be mounted flush to a solid wall or surface or at an angle to a solid wall or surface, connectable to PoE or DC inputs, having a capacity to convert AC/DC current; Radio Frequency ID setting configurable, employs intelligent filtering and smoothing algorithms and transmits only relevant summarized information back over a network, and permits firmware management

Abstract: A laser scanner measuring system is disclosed, which has a laser scanner and a calibration target. The laser scanner comprises a light emitting element for emitting a pulsed laser beam, a rotary projecting unit for projecting the pulsed laser beam, a distance measuring unit, and a control unit for driving and controlling the light emitting element and the distance measuring unit. The calibration target has a reflection sector with a known shape and with high reflectance and is installed at a known position. In use, there is a step for judging a reflected pulsed laser beam from the reflection sector by detecting a level of light quantity, a step for determining a center position of the reflection sector based on the result of the judgment, and a step for calibrating the laser scanner measuring system based on the determined center position and on the known position.

Abstract: According to the present invention, a laser scanner measuring system, which has a laser scanner and a calibration target, wherein the laser scanner comprises a light emitting element for emitting a pulsed laser beam, a rotary projecting unit for projecting the pulsed laser beam for scanning, a distance measuring unit, which has a distance measuring light receiving unit, for measuring a distance by receiving a reflection light from an object to be measured, and a control unit for driving and controlling the light emitting element and the distance measuring unit, and wherein the calibration target has a reflection sector with a known shape and with high reflectance and is installed at a known position, comprising a step for judging a reflected pulsed laser beam from the reflection sector as received by the distance measuring light receiving unit by detecting a level of light quantity, a step for determining a center position of the reflection sector based on the result of the judgment, and a step for calibratin

Abstract: A laser scanner measuring system is disclosed, which has a laser scanner and a calibration target. The laser scanner comprises a light emitting element for emitting a pulsed laser beam, a rotary projecting unit for projecting the pulsed laser beam, a distance measuring unit, and a control unit for driving and controlling the light emitting element and the distance measuring unit. The calibration target has a reflection sector with a known shape and with high reflectance and is installed at a known position. In use, there is a step for judging a reflected pulsed laser beam from the reflection sector by detecting a level of light quantity, a step for determining a center position of the reflection sector based on the result of the judgment, and a step for calibrating the laser scanner measuring system based on the determined center position and on the known position.

Abstract: A Pluggable small form-factor UHF Radio Frequency ID reader having in an enclosure: a host CPU; volatile memory; non-volatile memory; power inputs; digital circuitry comprising the CPU and supporting components; analog circuitry comprising power and Radio Frequency components; one or more antennas; networking components; user interface components; debug and test components; WiFi subsystem; Radio Frequency ID subsystem; wherein said enclosure comprises thermal dissipation capacity, radio frequency transparency with WiFi and Radio Frequency ID antennas, provides protection from physical and radiofrequency forces, is mountable to an AC outlet and can also be mounted flush to a solid wall or surface or at an angle to a solid wall or surface, connectable to PoE or DC inputs, having a capacity to convert AC/DC current; Radio Frequency ID setting configurable, employs intelligent filtering and smoothing algorithms and transmits only relevant summarized information back over a network, and permits firmware management

Abstract: According to the present invention, a laser scanner measuring system, which has a laser scanner and a calibration target, wherein the laser scanner comprises a light emitting element for emitting a pulsed laser beam, a rotary projecting unit for projecting the pulsed laser beam for scanning, a distance measuring unit, which has a distance measuring light receiving unit, for measuring a distance by receiving a reflection light from an object to be measured, and a control unit for driving and controlling the light emitting element and the distance measuring unit, and wherein the calibration target has a reflection sector with a known shape and with high reflectance and is installed at a known position, comprising a step for judging a reflected pulsed laser beam from the reflection sector as received by the distance measuring light receiving unit by detecting a level of light quantity, a step for determining a center position of the reflection sector based on the result of the judgment, and a step for calibratin

Abstract: In a laser beam detecting device for a construction machine, a beam sensor is installed above a leveling implement of the construction machine, a laser beam is detected by the beam sensor, and information based on the beam detection is displayed on a display. A plurality of reference positions are established in a range in which the beam sensor detects the laser beam. One of the reference positions is made a standard position, while the other reference positions are made offset positions.

Abstract: A photodetection device for accommodating photodetection elements and for detecting a photodetecting position, comprising a base, a transparent cylindrical case fixed on the base and having a closed upper end, guide grooves formed with the case, and substrates with electronic components, wherein the substrates are engaged and held in the guide grooves.

Abstract: In a laser beam detecting device for a construction machine, a beam sensor is installed above a leveling implement of the construction machine, a laser beam is detected by the beam sensor, and information based on the beam detection is displayed on a display. A plurality of reference positions are established in a range in which the beam sensor detects the laser beam. One of the reference positions is made a standard position, while the other reference positions are made offset positions.

Abstract: The present invention provides a laser reference level setting device, by which it is possible to adjust irradiating positions of a laser beam in vertical and horizontal directions with a simple arrangement and without additional manpower and to measure a tilt angle. The device comprises a laser sighting device and a target, the target having a reflection surface for indicating a given position on the target, and the laser sighting device comprising a laser oscillating device having an emitting means rotatably supported and for emitting a laser beam and a light receiving means for receiving a reflection laser beam, a driving unit for rotating at least the laser beam emitting means of the laser oscillating device, and a control unit for controlling the driving unit to direct the laser beam to a given position on the target according to the light receiving condition of the reflected laser beam reflected from the reflection surface of the target.

Abstract: In the displaying apparatus for a construction machine with a blade having a level sensor disposed above the blade and designed such that laser beams serving as a datum is detected by the level sensor and the information based on the detected datum is displayed on a remote display, a light emitting device for signal transmission is provided for the level sensor and a light sensing device corresponding to the light emitting device is provided for the remote display, whereby the information is transmitted by means of the lightwave signal from the light emitting device to the light sensing device.

Abstract: The present invention provides a laser reference level setting device, by which it is possible to adjust irradiating positions of a laser beam in vertical and horizontal directions with a simple arrangement and without additional manpower and to measure a tilt angle. The device comprises a laser sighting device and a target, the target having a reflection surface for indicating a given position on the target, and the laser sighting device comprising a laser oscillating device having an emitting means rotatably supported and for emitting a laser beam and a light receiving means for receiving a reflection laser beam, a driving unit for rotating at least the laser beam emitting means of the laser oscillating device, and a control unit for controlling the driving unit to direct the laser beam to a given position on the target according to the light receiving condition of the reflected laser beam reflected from the reflection surface of the target.

Abstract: This invention concerns a light wave distance meter which comprises a telescope unit supported on a framework such that the unit can rotate about a horizontal axis. This unit being provided with a telescope having a target in its line of sight, with an analog photoemitter which directs modulated light emitted by an optical device at the target, and with an analog photodetector which receives modulated light reflected from said target so as to measure the distance to said target.