A sensor for an electric fence barrier system comprising at least one electric fence wire is provided, the sensor comprising a mechanical sensing component to measure deflection of the electric fence wire to which the sensor has been fitted, and to produce a corresponding electrical deflection signal, an electrical activity monitoring component to measure the electrical activity on the electric fence wire to which the sensor has been fitted, and to produce an electrical activity signal, and a controller to receive and process the electrical deflection signal and the electrical activity signal, and to generate an alarm if either or both of the measured deflection or the electric activity exceeds predetermined values, and/or to communicate the electrical deflection and electrical activity signals to a remote location.

A sensor for an electric fence barrier system comprising at least one electric fence wire is provided, the sensor comprising a mechanical sensing component to measure deflection of the electric fence wire to which the sensor has been fitted, and to produce a corresponding electrical deflection signal, an electrical activity monitoring component to measure the electrical activity on the electric fence wire to which the sensor has been fitted, and to produce an electrical activity signal, and a controller to receive and process the electrical deflection signal and the electrical activity signal, and to generate an alarm if either or both of the measured deflection or the electric activity exceeds predetermined values, and/or to communicate the electrical deflection and electrical activity signals to a remote location.

The invention relates to an access control system for use in restricted areas (400, 500, 600, 700, 800, 900) and industrial environments comprising at least one controlled electrostatic field sensor (100) connected to at least one antenna (1); wherein said antenna (1) is configured as a single electrode, such that said sensor (100) measures the disturbances in the electrostatic field around said antenna (1) in a particular direction, and wherein the controlled electrostatic field sensor (100) is configured for detecting a disturbance in the electrostatic field generated by its own antenna (1). The sensor (100) is connected to a control device (40, 50, 60, 70, 80, 90).

The invention relates to an access control system for use in restricted areas (400, 500, 600, 700, 800, 900) and industrial environments comprising at least one controlled electrostatic field sensor (100) connected to at least one antenna (1); wherein said antenna (1) is configured as a single electrode, such that said sensor (100) measures the disturbances in the electrostatic field around said antenna (1) in a particular direction, and wherein the controlled electrostatic field sensor (100) is configured for detecting a disturbance in the electrostatic field generated by its own antenna (1). The sensor (100) is connected to a control device (40, 50, 60, 70, 80, 90).

Security systems and methods configured for use with an item of merchandise for retail display include a housing, at least one sensor carried by the housing and at least one output device carried by the housing. The security system further includes a controller carried by the housing and operably coupled to the sensor and to the output device. The controller is operable to determine a distance traveled by the item of merchandise from a retail display home position based upon a sensor input from the sensor, and to activate the output device based upon the distance traveled by the item of merchandise exceeding a threshold distance. The controller may utilize the at least one sensor in conjunction with an inertial navigation system (INS) and motion processing algorithms or techniques to determine the distance traveled by the item of merchandise from the retail display home position.

The invention provides a sensor surface-covering material sensor surface-covering material comprising a layer of synthetic material and a sensor layer which detects a change in an electrical property wherein the sensor layer comprises at least one electrically conductive layer and wherein the electrical property is resistance and/or capacitance; and a sensor surface-covering system comprising a sensor surface-covering material according to the invention and an electrical component housing for processing a signal generated by the sensor material.

A wireless router configured to detect an intruder. In one embodiment, a method may include monitoring received signal strength in a wireless router and creating a profile of the received signal strength as monitored during a learn mode. The method may also include comparing activity of the received signal strength in the wireless router, during an intruder detection mode, to the profile and issuing a notification, based on the comparing.

An approach detection device for motor vehicles includes a sensor carrier and a sensor electronic system disposed in a receiving space therein. The device includes a capacitive approach sensor coupled to an evaluation circuit which has a capacitive surface for detecting approaches. The device is mounted via a carrier frame, including a fastening section, to a vehicle body part and includes a detection opening. The sensor carrier is fastened to the carrier frame such that the active capacitive surface of the sensor is oriented toward the detection opening. A receiving space is defined by the detection opening and the sensor carrier and is formed in the region of the detection opening. A sealing element is disposed in the receiving space on the sensor carrier.

An inductive security sensor system is not susceptible to magnetic tampering (such as by using an external magnet or false target). A sensor assembly includes an inductive sensor (inductor coil), mounted in a relatively secure location, and a conductive proximity target incorporated with an object (such as a window or door, or an object/asset). An alarm condition can be detected as either a displacement condition in which the proximity target is displaced relative to the inductive sensor, or a tamper condition in which magnetic coupling between the proximity target and the inductive sensor is interfered with (such as by introducing a false conductive target) An inductance-to-data converter drives the inductor coil with an excitation signal to project a time-varying magnetic field for magnetically coupling to the proximity target. The IDC acquires sensor measurements (such as coil inductance), which are converted into corresponding sensor data representing alarm conditions (displacement or tamper).

An inductive security sensor system is not susceptible to magnetic tampering (such as by using an external magnet or false target). A sensor assembly includes an inductive sensor (inductor coil), mounted in a relatively secure location, and a conductive proximity target incorporated with an object (such as a window or door, or an object/asset). An alarm condition can be detected as either a displacement condition in which the proximity target is displaced relative to the inductive sensor, or a tamper condition in which magnetic coupling between the proximity target and the inductive sensor is interfered with (such as by introducing a false conductive target) An inductance-to-data converter drives the inductor coil with an excitation signal to project a time-varying magnetic field for magnetically coupling to the proximity target. The IDC acquires sensor measurements (such as coil inductance), which are converted into corresponding sensor data representing alarm conditions (displacement or tamper).