Abstract: Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

Abstract: An in-container monitoring sensor system is based on an UWB radar intrusion detector positioned in a container and having a range gate set to the farthest wall of the container from the detector. Multipath reflections within the container make every point on or in the container appear to be at the range gate, allowing intrusion detection anywhere in the container. The system also includes other sensors to provide false alarm discrimination, and may include other sensors to monitor other parameters, e.g. radiation. The sensor system also includes a control subsystem for controlling system operation. Communications and information extraction capability may also be included. A method of detecting intrusion into a container uses UWB radar, and may also include false alarm discrimination. A secure container has an UWB based monitoring system.

Abstract: A security system for detecting physical intrusion in a monitored area including a plurality of radio units arranged in a network around the monitored area to determine received signal strength and pass variations thereof through the radio units to a base station.

Abstract: A method and system that creates a boundary with an alert and deterring function when the boundary is crossed. The system employs a base unit and one or more portable IR motion sensors which are capable of discriminating between objects of differing physical characteristics, and notifies the user when the parameters for sufficient obstruction have been met. Both sensors and base unit have audio and visual deterring capabilities to frighten away unwanted intruders. The method and system can be utilized in camping situations to deter dangerous wildlife and can be configured to notify users when children exit from an area. The system can be used to create a contiguous perimeter, or any boundary arrangement desired.

Abstract: A monitoring system for a moving object including a leaking transmission device having a first and second leaking transmission paths extending substantially in parallel to each other, first equipment for transmitting a first transmission signal from one end side of both the ends of the leaking transmission device as a transmission medium to the other end side, second equipment for transmitting a second transmission signal from the other end side of both the ends of the leaking transmission device as the transmission medium to the one end side, and a detector for detecting a two-dimensional movement of a moving object as a monitoring target on the basis of a difference between variations of first and second reception signals based on the respective reflection waves of the first and second transmission signals from the moving object.

Abstract: A dual-technology motion sensor with an ultrasonic sensor element (transducer) and a PIR sensor element is disclosed. The dual-technology motion sensor is configured to modulate ultrasonic radiation emitted from the ultrasonic sensor element when the motion sensor detects a condition under which other wireless devices, especially ultrasound-based wireless devices, are in operation, thereby eliminating problems associated with interference.

Abstract: A intrusion detection system includes a first sensor device having a first transmission circuit unit that transmits a modulation wave of a first transmission spectrum diffusion signal to a first transmission leakage transfer passage and a second sensor device having a second transmission circuit unit that transmits a modulation wave of a second transmission spectrum diffusion signal to a second transmission leakage transfer passage. The signal interval of the first transmission spectrum diffusion signal is the same as the signal interval of the second transmission spectrum diffusion signal. The first transmission spectrum diffusion signal and the second transmission spectrum diffusion signal are shifted in frequency so that the first transmission spectrum diffusion signal does not overlap with the second transmission spectrum diffusion signal.

Abstract: A device for the detection of the passage of objects, people or animals bearing a radio frequency identification (RFID) tag, including at least one mobile support which, when at rest, forms a barrier to the passage of the objects, people or animals and which, when in contact with the latter, is capable of moving towards a withdrawn position, this mobile support bearing an antenna connected electrically to an RFID tag reader.

Abstract: A Network of Traffic Behavior-monitoring Unattended Ground Sensors (NeTBUGS) is configurable to detect the passing of vehicles, determine when and where individual vehicles have stopped for a period of time that raises suspicion of illegal or dangerous activity, track the vehicles after the stop and to generate a location-tagged alert for the timely dispatch of a response asset to investigate the anomalous behavior of the vehicle. NeTBUGS sensors are small, camouflaged, easily concealed, and operate for long durations independent of the electrical grid or large, obvious power generators and thus well suited for operation in a hostile environment.

Abstract: An intrusion detector comprising a passive sensor for detecting a person entering a space to be monitored, said intrusion detector comprising a housing provided with a window for said passive sensor, optical means for directing electromagnetic radiation from said person onto the passive sensor, alarm means connected to said passive sensor for generating an alarm in case the electromagnetic radiation from said person being detected by the passive sensor corresponds to a signal value that exceeds a maximum level or falls below a minimum level, a special feature being the fact that the optical means are provided with a mirror curved in two directions for forming at least one protective curtain extending in a vertical plane in the space to be monitored, wherein the passive sensor is disposed on the optical axis at the focus of the mirror, and wherein the mirror directs a beam of electromagnetic radiation from the person, rotated through at least 45°, preferably through at least substantially 90°, onto the passive

Abstract: A capacitive passenger detector includes: a capacitive sensor having main, sub and guard electrodes; a sensor characteristic measurement unit for applying an alternating voltage signal to each electrode and for converting a current in each electrode to a voltage; and a controller. The controller defines a current in the guard electrode as a reference current when voltages of the main and guard electrodes have a same potential. The controller defines a current flowing direction of the guard electrode to be negative when the voltage of the main electrode is higher than the guard electrode. The controller defines the current flowing direction of the guard electrode to be positive when the voltage of the main electrode is lower than the guard electrode. The controller corrects the voltage of the main electrode based on the current of the guard electrode so that a corrected voltage is set to be a passenger determination data.

Abstract: An obstacle detecting system having leakage coaxial cables laid on at both the sides of an obstacle monitoring district and an obstacle detecting device for emitting electrical waves from one of the leakage coaxial cables laid on at both the sides to the other leakage coaxial cable and detecting an obstacle in the obstacle monitoring district on the basis of the electrical waves incident to the other leakage coaxial cable is further equipped with an electrical wave transmitting unit for transmitting the electrical waves to the one leakage coaxial cable in the obstacle detecting device, an electrical wave receiving unit for receiving the electrical waves incident to the other leakage coaxial cable, and a connecting unit for connecting the electrical wave transmitting unit and the electrical wave receiving unit.

Abstract: An apparatus is disclosed including one or more security structures. The one or more security structures includes: a weldable frame; a plurality of composite panels, each panel securable to the weldable frame, each composite panel configured to form at least one joint with at least one adjoining composite panel; and a respective security element embedded within each of the composite panels. The security element is configured to detect a breach in the composite panel.

Abstract: Slaves are respectively provided corresponding to electric devices, measure, in real time, power usage states and disposed positions of the electric devices to transmit to a master. The master detects operational states of electric devices on operation based on power usage states received from the slaves, and detects a positional relation between electric devices on operation based on disposed positions of the electric devices. Then, the master estimates the number of residents in the house by determining achievability of operational states of electric devices based on the detected operational states and positional relation of electric devices.

Abstract: In one embodiment, a system includes a first cold noise source, a first radiometer receiver, and a first detector. The first cold noise source generates a first thermal radiation signal having a first carrier frequency band. The first thermal radiation signal carries a first information signal. The first cold noise source also transmits the first thermal radiation signal through a first antenna. The first radiometer receiver receives the first thermal radiation signal through a second antenna, and the first detector extracts the first information signal from the first thermal radiation signal.

Abstract: An electronic insect electrocution device with an integral display and counting means that displays the number of discharges, or “zapped” insects is herein disclosed. The device comprises a lamp enclosed within an enclosure comprising series of alternating grids energized by a voltage increasing device, which electrocutes any insects that fly towards the lamp. A numeric digital display is provided on the top of the enclosure and reflects the current number of discharges or killed insects. The counter is provided with an input signal that detects the voltage fluctuation of the grid every time an insect is killed. This detection circuit drives a counting circuit which interfaces with the counter. It is reset every time the unit is unplugged.

Abstract: The manual trigger device includes: a housing presenting a flexible or mobile surface, an emission unit that emits an electromagnetic field, a reception unit that receives the electromagnetic field, and emits a signal representative of the electromagnetic field received, a modulation element that modulates the electromagnetic field, and is connected to the flexible or mobile surface of the housing such that when the surface is deformed or moved, the reception unit receives an electromagnetic field modulated by the modulation element according to the deformation of the flexible or mobile surface and a processing circuit that processes the signal, and adapted to detect a modulation of the electromagnetic field representative of a push on the surface with a predetermined pressure and to command, upon detection, the change in appearance of a warning device visible from the outside of the housing.

Abstract: The present invention relates to a device and a method for communication, and a program that makes it possible to provide a communication environment not limited by a use environment. An electrode controlling unit 261 in a transmitting device 260 checks a state of capacitive coupling of each of an electrode 271 and an electrode 272 in an electrode unit 262 with surroundings, controls connection of each electrode to a transmitting unit 263 according to a result of the check, and makes the electrode 271 and the electrode 272 function as a transmission signal electrode or a transmission reference electrode, the transmission signal electrode and the transmission reference electrode being different from each other. The transmitting unit 263 connects the electrode 271 and the electrode 272 to an amplifying unit under control of the electrode controlling unit 261, and transmits a signal to a communication medium 280 via one of the electrodes. The present invention is applicable to communication systems.

Abstract: One embodiment of the present invention discloses an odor-generating alarm apparatus that can ensure the reliability of a releasing operation and the odor dispersibility. In an odor-generating alarm apparatus, when abnormality information indicating occurrence of an abnormal state is supplied from a sensor for occurrence of an abnormal state, an initiator is operated by a circuit portion, and the initiator displaces a piston of a driving portion and displaces a spray can with respect to a casing and switches the spray can to a releasing state, thus releasing an odorous liquid filling the spray can in the form of fine particles.

Abstract: A hazardous vehicle alert system comprising a control module, a special graphical user interface, a speed and distance detector, and an alarm module where the user sets alarm triggers based on reaction time until potential impact from the hazardous vehicle. The user can assess the landscape, traffic patterns, and specifics of the task at hand to determine the required reaction time to take evasive maneuvers from the threat of on-coming hazardous vehicles and create alarm triggers to yield this reaction time. A software package is used to drive the graphical user interface, control module, alarm module, and detector module. The system includes modes ranging from one to four pieces and a mode that can be installed in a vehicle.

Abstract: A motion detector system includes the ability to detect motion through the use of a Doppler radar sensor or a combination of PIR sensors and a Doppler radar sensor. The system includes an outdoor light fixture having one or more lamps and a housing coupled to the outdoor light fixture. The housing includes a Doppler radar sensor and a microprocessor for analyzing the signals received by the Doppler radar sensor. Alternatively, the housing includes a combination of PIR sensors and a Doppler radar sensor and a microprocessor for analyzing the signals received from these sensors. The lamps in the light fixture are activated when either the PIR sensor or the Doppler radar sensor generates a signal indicating motion within the monitored area. Alternatively, the lamps can be activated when either the PIR sensor or the Doppler radar sensor senses predetermined number of motion activities over a limited time period.

Abstract: A wireless sensor for a load control system is adapted to be releasably mounted to a surface, such as a drop ceiling panel, to allow the optimum location of the sensor to be determined. A releasable mounting means of the sensor comprises two posts extending perpendicularly from a rear surface of the sensor. Each post has a small diameter and is rigid enough to pierce the panel without creating a large aesthetically-displeasing hole. The sensor may be permanently affixed to the panel by bending the posts at a rear surface of the panel without the use of a tool, such that the panel is captured between the mounting plate and the deformed posts. The sensor further comprises multiple test buttons provided on an outwardly-facing surface of the sensor for separately testing the communications of the load control system and the operation of the sensor. Alternatively, the releasable mounting means may comprise one or more magnets for magnetically coupling the sensor to a grid structure of the ceiling.

Abstract: A method and apparatus are provided for detecting an intruder. The method includes the steps of receiving an echo from opposing sides of a curtain line extending through the secure area, determining a difference between the received echoes, determining a phase difference of the signal and generating an alarm when the determined phase changes sign between successively received echoes.

Abstract: A machine tool monitoring device of a machine tool for machining a work piece, includes a signal unit (24) provided for an ultra-broad-band operation. The signal unit (24) processes a signal (32, 34), which has a sequence (46) of pulses (48) and includes an arithmetic-logic unit (40) for associating a detected signal (34) with a use situation (52, 58) by means of a fuzzy logic-based and/or neural logic-based signal processing. The signal unit (24) preferably has a programmable data base (44) in which a use situation (52, 58) in a machining process is associated with a procedure (56, 60) for changing the machining process.

Abstract: A motion sensing method and apparatus includes a housing enclosing a microwave motion sensor including an antenna, and a security system. The antenna may be a patch antenna which includes microwave radiating elements for transmitting and receiving a microwave signal for sensing motion. A reflector is attached to the housing and positioned above the antenna for downward shaping of the microwave signal. The microwave radiating elements together with the reflector provide a radiation pattern where a main beam is transmitted in a direction orthogonal to a surface of the antenna and a sided lobe is transmitted downward in amplitude below the microwave motion sensor. An alarm circuit indicates when the microwave sensor detects motion in armed mode, and a masking circuit indicates when the microwave sensor detects motion in a mask zone when the security system is unarmed. A second sensor may be positioned beneath the microwave motion sensor.

Abstract: A method for processing radio frequency reflections is provided. The method applies an RF waveform to a transmission line that is a conductor used for providing a utility service. The method uses a RF waveform generator to transmit UltraWideband (UWB) RF waveforms through the conductors of a building. The RF waveforms are emitted at emission points that can be impedance discontinuities along the transmission line or impulse radios. The emitted RF waveforms reflect off of objects in the building and are received at reception points that can be impedance discontinuities or impulse radios. These reflections are processed to determine movement of objects within or near the building. Based on the reflections of the RF waveforms, the position of the objects within or near the building can be determined.

Abstract: Embodiments of the present invention relate to a range reduction detection apparatus that is able to detect blocking of its field of view. Detection of an event, due to movement or intrusion within the field of view, is arranged to start a timer, which will time-out thereby providing an indication of such blocking unless a subsequent event is detected within the time-period.

Abstract: A method of detecting a moving target within a predefined protected region with a microwave motion detector, by transmitting microwave frequency signals and receiving the microwave frequency signals reflected by a target. A target distance is then determined from the received microwave frequency signals, and a target angle is determined from the received microwave frequency signals. Then, a target location is determined from the target distance and the target angle, and an alarm condition is set if the target location is within the predefined protected region.

Abstract: An intrusion detection and tracking system includes a plurality of nodes, a DP and a gateway. The nodes are disposed about an area and form a wireless network to be monitored, the nodes are configured to receive data and transmit data frames with a signal strength indicator and/or a link quality indicator in the frames. The DP is communicatively connected to the network and configured to analyze variations in the signal strength indicator and/or link quality indicator to detect and track disturbances to an electromagnetic field in the area. The gateway is configured to form a data link between the network and the DP.

Abstract: An intrusion detection system includes an intrusion detection device, and a pair of leaky transmission paths including a leaky transmission path of a sending side which is connected to the intrusion detection device and outputs a leaky electric wave on the basis of an output from the intrusion detection device and a leaky transmission path of a receiving side which receives the leaky electric wave output from the leaky transmission path of the sending side, and the intrusion detection device detects that the leaky electric wave received in the leaky transmission path of the receiving side varies to detect the presence or absence of intrusion and an intrusion point.

Abstract: A zoned interactive control area (10) wherein an architectural space is divided in to a plurality of zones (16), each having its own sensor (22) and zone lights (18). In a normal operating mode (50) the sensors (22) are used to detect the presence of a person such that the zone lights (18) can be turned on and/or adjusted for light level. Each zone light (18) also has a light sensor (24) used, at least in part, for communication with the other zone lights (18), such that the light level can be adjusted not just in response to a presence in the respective zone (16) but also in response to presence in other zones (16). According to a security method (70) when the zone lights (18) are not in use for normal lighting (as when they are turned off) then if the sensors (22) detect the presence of an intruder the zone lights (18) flash to deter the intruder and also communicate the fact of the presence of the intruder to the other zone lights (18) via the light sensors (22).

Abstract: An electromagnetic lock monitoring system for monitoring the strength of a magnetic field in an electromechanical lock which is created when a steel armature plate is closed against an electromagnet. The system utilizes dual Hall Effect devices positioned in such a way that both ends of the electromagnet and both magnetic fields are monitored, and that the resulting monitoring effectively covers the complete contact surface between the electromagnet and the armature plate. Preferably, the Hall Effect devices are disposed in series at the point of maximum flux density within the center element of an E-shaped electromagnetic core, at opposite ends of the core. If the magnetic flux is below a preset limit, a relay also in series drops out, triggering an alarm which may be sonic, electronic, and/or visual, as is known in the prior art.

Abstract: A lighting control system for controlling the lighting of a predetermined area is provided. According to one embodiment, the lighting control system comprises one or more light sources positioned in the predetermined area, the light source configured to include adjustable light intensity; a camera positioned and configured to capture an image of the predetermined area; and a controller in operable communication with the one or more light sources and the camera, the controller configured to control the one or more light sources and adjust the light intensity of the light source. The controller is configured to operate in a closed control loop to automatically adjust the lighting conditions of a predetermined area or environment. A false alarm checking process checks for temporary or localized events to prevent unnecessary lighting adjustments.

Abstract: A movement detection system includes a microwave antenna able to transmit microwave frequency signals into a space. An electronics controller is connected to the microwave antenna, and is configured to continually measure the impedance of the microwave antenna while it transmits microwave frequency signals into the space. An interpretive device is connected to receive impedance measurements from the electronics controller, and is configured to interpret and report changes in the magnitude and phase angles of individual impedance measurements as the passing of things and their direction through the space.

Abstract: The invention refers to a sensor (10) for presence detection, and a method for presence detection, in a detection area (18) comprising at least an image generator (14) for generating an image on a detection area (18) formed by illuminated structures reflecting from said detection area (18), a detector (20) for detecting signals of the image reflected from the detection area (18), an image processing unit (24) for comparing the signals based on the reflected and received image with signals of a reference image stored in storing means of the image processing unit (24), wherein the image generator (14) generates a pattern (16) on the detection area (18) having illuminated and non-illuminated zones, the image processing unit (24) uses triangulation technique to detect changes of the pattern (16) within the detection area (18) over the reference image.

Abstract: The use of quantum-mechanically entangled photons for monitoring the integrity of a physical border or a communication link is described. The no-cloning principle of quantum information science is used as protection against an intruder's ability to spoof a sensor receiver using a ‘classical’ intercept-resend attack. Correlated measurement outcomes from polarization-entangled photons are used to protect against quantum intercept-resend attacks, i.e., attacks using quantum teleportation.

Abstract: A trespass detection system includes an electronic-wave trespass detection sensor which is provided near the boundary of a trespass surveillance area, and a detection device body which detects trespassing into the area on the basis of a detection output from the sensor. The detection device body includes a change quantity storing unit which stores the quantity of change in electric field intensity over a predetermined period for each detection zone that is set in advance along the direction of extension of the electronic-wave trespass detection sensor, a statistical processing unit which statistically processes each of the quantities of change, a threshold value setting unit which corrects a threshold value on the basis of the result of the processing and sets a new threshold value, and a trespass detection determining unit which compares the quantity of change and the threshold value and thus determines that there is trespassing by an object.

Abstract: A method for providing a security barrier proximate a body of water such as a lake or a swimming pool. One or more beams—preferably infra red light beams—define the barrier. A detector is positioned to monitor each beam so that a moving object “cutting” the beam can be detected by a controller in communication with the beam or beams. A motion detector monitors for motion in a broad area around the location of the security perimeter. The motion detector is also in communication with the controller. The controller deactivates the beams and relies solely on the motion detector when no objects are near the perimeter. Once the motion detector senses an object in the area of the perimeter, however, the controller activates the beams. If an object then interrupts a beam, the controller activates an alarm.

Abstract: Vehicle including a first substructure and a second substructure arranged such that an interior space is defined by or between the first and second substructures, and an arrangement for determining whether an object is present in the interior space. The arrangement includes ultrasonic transducers arranged on the second substructure and to transmit ultrasonic waves toward the first substructure and receive any waves reflected by objects in the interior space and a processor coupled to the ultrasonic transducers and arranged to determine whether an object is present in the interior space based on reception of waves by the ultrasonic transducers. If the vehicle is an automobile and the interior space is the passenger compartment therein, the first substructure can be the passenger seat and the second substructure can be the A-pillar, in which case, the processor determines the presence or absence of a passenger in the passenger seat.

Abstract: A sensor circuit for remotely commanding the operation of a remote device includes a motion sensor circuit for detecting motion relative thereto and having an output conditioned upon motion detection. Additionally, a photocell sensor circuit for detecting a low ambient illumination level has an output command conditioned upon the detection of a predetermined illumination level that is electrically coupled to a control circuit having a plurality of inputs. The invention further includes a data output comprising a remote device operation command and a transmitter circuit coupled to the data output of said control circuit for transmitting said operation command to a remote device.

Abstract: A security system using a laser range finder that can precisely determine an existence and a location of an intruder, and a method of detecting the intruder using the laser range finder are provided. The security system using a laser range finder, the security system includes: the laser range finder emitting laser beam, receiving the reflected laser beam, measuring a distance between the laser range finder and a target object, and detecting an existence and a location of an intruder; and at least one reflective means reflecting the emitted laser beam toward the laser beam finder, wherein at least one reflective means is spaced by a predetermined distance of the laser range finder and is installed a predetermined distance from the laser range finder.

Abstract: A intrusion detection system includes a first sensor device having a first transmission circuit unit that transmits a modulation wave of a first transmission spectrum diffusion signal to a first transmission leakage transfer passage and a second sensor device having a second transmission circuit unit that transmits a modulation wave of a second transmission spectrum diffusion signal to a second transmission leakage transfer passage. The signal interval of the first transmission spectrum diffusion signal is the same as the signal interval of the second transmission spectrum diffusion signal. The first transmission spectrum diffusion signal and the second transmission spectrum diffusion signal are shifted in frequency so that the first transmission spectrum diffusion signal does not overlap with the second transmission spectrum diffusion signal.

Abstract: An intruder detection system is provided in which a detection range can be set to a predetermined one so that false detection caused by a moving object outside the predetermined range can be diminished. The system includes a transmission-side leaky transmission line that radiates a detection signal for detecting an intruder and a reception-side leaky transmission line that receives a detection signal leaked from the transmission-side leaky transmission line, both of which are buried spaced apart from each other in a detection surveillance area, and detects the presence/absence of an intruder in the detection surveillance area based on variations in the detection signal received by the reception-side leaky transmission line, wherein at least part of either the transmission-side leaky transmission line or the reception-side leaky transmission line is made of a surface-wave-type leaky coaxial transmission line, and the other leaky transmission line, a radiation-type leaky coaxial transmission line.

Abstract: A detector, system including a detector and method for sensing motion within a detection region. The detector has a detection element and a focusing element aiming received energy corresponding to a presence within the detection region toward the detection element. The focusing element has a plurality of sections in which each of the plurality of sections establishes a corresponding detection zone within the detection region. The plurality of sections are arranged to allow a motion vector to be determined for an object passing through the detection region. The system includes a detector that generates pulses each time presence in a detector zone is detected as well as a central alarm panel. The central alarm panel receives the pulses and has processor that evaluates the timing between electrical pulses to determine the motion vector.

Abstract: A method is disclosed for determining sensor performance of a border element of homogeneous terrain, weather and vegetation properties. The border element includes a number of areas of interest, as well as a plurality of sensors. The method includes determining coordinates of the border element and areas, and determining performance data for each sensor. The coordinates and performance data is used as input parameters to a Line-Of-Sight tool for determining a coverage factor of each sensor. The coverage factor is modified for time per time unit in which function of each sensor is impaired by conditions such as bad weather, light or mobility. Then, the modified coverage factors for each sensor are summed to obtain a total sensor performance for the border element.

Abstract: A method determining a malfunction when a reception signal fluctuates at a receiver owing to malfunctions occurring on a leaky cable and its related devices. The method determines, among range bins correlating the reception signal with a distance from a feed end of a radio-wave radiation unit and a radio-wave reception unit, based on a correlation between a time-delay from a transmission time of a transmission signal until a reception time of the reception signal and a transmission path distance of the reception signal in the radio-wave radiation unit and the radio-wave reception unit, when, comparing the reception signal with the transmission signal with respect to the range bin corresponding to a far end, a level of amplitude reduction in the reception signal exceeds a predetermined ratio, that a malfunction is present in either the radio-wave radiation unit or radio-wave reception unit.

Abstract: The IR sensor is configured to be mounted proximate to a door to be monitored. The IR sensor has an IR transmitter and an IR receiver. The IR transmitter has an active period and an idle period. The IR transmitter transmits control data packets which are provided by the processor during the active period. The IR receiver has an active period for detecting IR data and reflected data packets. Each of the reflected data packets has a packet IR reflectivity. The memory stores a door IR reflectivity associated with a door surface of the door, and the processor compares the packet IR reflectivity to the door IR reflectivity to determine at least a door position of the door.

Abstract: A device for detecting the presence of an object in a detection zone is provided. The device includes a transmission line, a generator which is connected to an input of the transmission line and which is able to generate an input signal, and a receiver which is connected to an output of the transmission line and which is able to measure an output signal, the transmission line being able to radiate a radiated signal in the detection zone when the generator generates the input signal, the detection device further including analysis means which are able to detect the presence of an object in the detection zone in accordance with the output signal.

Abstract: The present invention relates to a device with its related electronic circuit and to a detection process targeted to detect any magnetic material moving around the antennas/sensors used in Electronic Article Surveillance (EAS) electromagnetic systems, which can be internally or externally coupled to these kind of anti-theft systems, significantly decreasing its current vulnerability to fraud since the current EAS electromagnetic systems are vulnerable for not being able to detect magnetic materials. The present process and detector device filter and treat the DC signal generated by the displacement of a magnetic material around one or more EAS electromagnetic system antenna/sensor(s). Magnetic material detection is achieved from a differential signal existing in the antenna/sensor receiver, such signal being forwarded to a control unit wherein there are coupled a device comprising a “n” order filter, a buffer, a sensitivity control circuit, a control logic and an alarm module.

Abstract: A method for determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder. The method may comprise: providing three dimensional terrain data concerning the AOR; providing the locations of a plurality of detection sensors implemented in the AOR, with each detection sensor having a known field of view; providing a predetermined single scan detection probability for each of the detection sensors; generating a grid of points that is laid over the AOR; and using the foregoing information to determine a particular path of travel, defined by selected arcs connecting specific ones of the grid of points, of the intruder to the predefined point that represents a minimum probability of detection of the intruder.