The disclosure includes a doorbell having a visitor detection system that can comprise at least one of a camera, a microphone, and a motion detector. The method for using the doorbell can comprise recording, via the camera, video data that represents a video. The method can also comprise recording, via the microphone, audio data that represents audio. The method of using the doorbell can comprise transmitting at least a portion of the video data and at least a portion of the audio data, to a remote computing device that is communicatively coupled to the doorbell. The method can also comprise transmitting the video data and the audio data to a remote server that is communicatively coupled to the doorbell.

A system and method for automatically screening anyone arriving to a facility outside of predetermined entry and exit times is provided. The automated screening system denies entry and detains anyone determined to be a threat. An operator may then take the person denied entry into custody or manually override the system to allow the person access to the facility.

Low-power vehicle sentinel systems and methods are disclosed herein. An example method includes obtaining electromagnetic signals in a target area surrounding a vehicle. The electromagnetic signals can be obtained from electromagnetic elements mounted to the vehicle. The method can include determining attributes or behaviors of an object in the target area based on the electromagnetic signals and executing a response measure based on the attributes or behaviors of the object.

Techniques are described for moving asset location tracking and monitoring system technology. A system monitors for events related to a monitoring system that monitors a fixed property and the system detects an event related to the monitoring system based on the monitoring. The system performs an operation that leverages geographic location tracking of at least one mobile asset associated with the fixed property based on the detected event.

There is provided a method of installing a magnetic proximity sensor including positioning the magnetic field sensor in a desired location and positioning a magnet in a desired location relative to the magnetic field sensor, with an indicator of the sensor continuing to be turned on during the predetermined period of time when the magnetic field generated by the magnet is sensed by the magnetic field sensor, and being turned off during the predetermined period of time when the magnetic field generated by the magnet is not sensed by the magnetic field sensor. The indicator light thus assists in determining proper relative positioning of the magnet and the magnetic field sensor. If after the predetermined period of time more time is needed to install the magnetic proximity sensor, the method includes initiates another predetermined period of time by removing and replacing a lid of the magnetic proximity sensor.

There is provided a method of installing a magnetic proximity sensor including positioning the magnetic field sensor in a desired location and positioning a magnet in a desired location relative to the magnetic field sensor, with an indicator of the sensor continuing to be turned on during the predetermined period of time when the magnetic field generated by the magnet is sensed by the magnetic field sensor, and being turned off during the predetermined period of time when the magnetic field generated by the magnet is not sensed by the magnetic field sensor. The indicator light thus assists in determining proper relative positioning of the magnet and the magnetic field sensor. If after the predetermined period of time more time is needed to install the magnetic proximity sensor, the method includes initiates another predetermined period of time by removing and replacing a lid of the magnetic proximity sensor.

This invention relates to a security tag for use in a retail environment. In particular this invention relates to a security tag including a flexible member or lanyard that can be formed into a loop to attach the security tag to an article. A security tag comprises a main body comprising a casing having opposite first and second end walls; an elongate flexible member for securing around an object, a first end of the flexible member being connected to the main body; a releasable locking mechanism in the main body, the locking mechanism configured to retain a second end of the flexible member within the casing such that a part of the flexible member external to the casing forms a loop, the locking mechanism being releasable by application of a magnetic force such that the second end of the flexible member can be withdrawn from the casing; and two electronic article surveillance (EAS) sensors housed within the casing, a first one of the sensors being proximate the first end wall of the casing and a second one of the sensors being proximate the second end wall of the casing.

An electrical switch with a conductive bridge, a first wire configured to provide continuity with the conductive bridge, and a biasing member connected to the first wire. The biasing member provides a threshold reaction force to maintain continuity between the first wire and the conductive bridge. The switch further includes a housing that directs tensile forces acting upon the first wire to oppose a reaction force of the biasing member. When a tensile force acting on the first wire exceeds a threshold reaction force of the biasing member continuity between the first wire and the conductive bridge is broken.

This disclosure provides a portable object detection system and method. The system includes a first cluster network, a family cluster network, and a detection server. The first cluster network includes a portable object coupled with a small communication device (SCD), a first cluster head device (first CHD) including a smartphone that registers the SCD prior to monitoring, and performs mutual monitoring between the SCD and the first CHD. The detection server manages the first CHD and a second CHD, and when the detection server receives a loss event from the first CHD in the first cluster network, it requests a mutual search by the second CHD for the SCD as a lost target in the first cluster network.

The mutual monitoring in a first cluster network adjusts a message transmission interval and a radio transmission power depending on collected parameters such as the SCD's location information, mobility, power capacity, and others.

This disclosure provides a portable object detection system and method. The system includes a first cluster network, a family cluster network, and a detection server. The first cluster network includes a portable object coupled with a small communication device (SCD), a first cluster head device (first CHD) including a smartphone that registers the SCD prior to monitoring, and performs mutual monitoring between the SCD and the first CHD. The detection server manages the first CHD and a second CHD, and when the detection server receives a loss event from the first CHD in the first cluster network, it requests a mutual search by the second CHD for the SCD as a lost target in the first cluster network.

The mutual monitoring in a first cluster network adjusts a message transmission interval and a radio transmission power depending on collected parameters such as the SCD's location information, mobility, power capacity, and others.