Abstract: A system includes first and second access points. Each access point includes one or more 802.11 wireless radios configured to communicate with a wireless node. The first and second access points are both configured to wirelessly receive first data from the wireless node at substantially a same time and forward the first data. The first and second access points are also both configured to receive second data for the wireless node. The first access point is configured to wirelessly transmit the second data to the wireless node, and the second access point is configured to refrain from transmitting the second data to the wireless node while the first access point is operating properly.

Abstract: Provided is self-identifying personal protective equipment and methods of monitoring the same. The personal protective equipment may include a wireless tag positioned on or incorporated into an individual's face piece and a wireless tag reader positioned on or incorporated into the breathing apparatus of the personal protective equipment. The wireless tag reader may transmit an interrogation signal to the wireless tag upon actuation of the breathing apparatus, such as actuation of the flow of air through the breathing apparatus to the face piece. The face piece may then be identified automatically with the use of the personal protective equipment.

Abstract: Provided is self-identifying personal protective equipment and methods of monitoring the same. The personal protective equipment may include a wireless tag positioned on or incorporated into an individual's face piece and a wireless tag reader positioned on or incorporated into the breathing apparatus of the personal protective equipment. The wireless tag reader may transmit an interrogation signal to the wireless tag upon actuation of the breathing apparatus, such as actuation of the flow of air through the breathing apparatus to the face piece. The face piece may then be identified automatically with the use of the personal protective equipment.

Abstract: A system includes first and second access points. Each access point includes one or more 802.11 wireless radios configured to communicate with a wireless node. The first and second access points are both configured to wirelessly receive first data from the wireless node at substantially a same time and forward the first data. The first and second access points are also both configured to receive second data for the wireless node. The first access point is configured to wirelessly transmit the second data to the wireless node, and the second access point is configured to refrain from transmitting the second data to the wireless node while the first access point is operating properly.

Abstract: A system includes first and second access points. Each access point includes one or more 802.11 wireless radios configured to communicate with a wireless node. The first and second access points are both configured to wirelessly receive first data from the wireless node at substantially a same time and forward the first data. The first and second access points are also both configured to receive second data for the wireless node. The first access point is configured to wirelessly transmit the second data to the wireless node, and the second access point is configured to refrain from transmitting the second data to the wireless node while the first access point is operating properly.

Abstract: A fall protection harness includes a computer processor, an optical transmitter, and an optical receiver coupled. The optical transmitter and the optical receiver are optically coupled. Upon damage to the fall protection harness, the optical coupling between the optical transmitter and the optical receiver is broken, the computer processor senses the break in the optical coupling between the optical transmitter and the optical receiver; and the computer processor generates a signal indicating the damage.

Abstract: A fall protection harness or fall protection static line includes one or more straps, an electrical sensing device coupled to the one or more straps, a computer processor coupled to the electrical sensing device, and a transmitter coupled to the computer processor. The one or more straps are made up of an electrically non-conducting thread and an electrically conducting thread. The electrically non-conducting thread and the electrically conducting thread are intertwined, or the electrically conductive thread is intertwined with itself. The electrical sensing device detects a disruption in current in the electrically conducting thread, a disruption in voltage in the electrically conducting thread, or a change in resistance in the electrically conducting thread, which indicates damage to the fall protection harness or a fall by a person wearing the fall protection harness.

Abstract: A fall protection harness or fall protection static line includes one or more straps, an electrical sensing device coupled to the one or more straps, a computer processor coupled to the electrical sensing device, and a transmitter coupled to the computer processor. The one or more straps are made up of an electrically non-conducting thread and an electrically conducting thread. The electrically non-conducting thread and the electrically conducting thread are intertwined, or the electrically conductive thread is intertwined with itself. The electrical sensing device detects a disruption in current in the electrically conducting thread, a disruption in voltage in the electrically conducting thread, or a change in resistance in the electrically conducting thread, which indicates damage to the fall protection harness or a fall by a person wearing the fall protection harness.

Abstract: A system receives body area network (BAN) data and calculates an end of life of a fall protection harness as a function of the BAN data.

Abstract: A fall protection harness has a magnetic sensor coupled to it, and a computer processor is coupled to the magnetic sensor. Upon damage to the fall protection harness, the magnetic sensor senses the damage, the magnetic sensor generates a first signal to the computer processor, and the computer processor generates a second signal indicating the damage.

Abstract: A fall protection harness includes a computer board with a communication device. A computer processor is communicatively coupled to the computer board. The computer board includes unique identification data associated with the fall protection harness and a person. The computer board transmits periodic signals that include data relating to a physical condition of the fall protection harness and the unique identification data. The computer processor receives the periodic signals, and determines a location of the person at a particular time based on the periodic signals.

Abstract: A fall protection harness includes a computer processor, an optical transmitter, and an optical receiver coupled. The optical transmitter and the optical receiver are optically coupled. Upon damage to the fall protection harness, the optical coupling between the optical transmitter and the optical receiver is broken, the computer processor senses the break in the optical coupling between the optical transmitter and the optical receiver; and the computer processor generates a signal indicating the damage.

Abstract: A system receives body area network (BAN) data and calculates an end of life of a fall protection harness as a function of the BAN data.

Abstract: A fall protection harness has a magnetic sensor coupled to it, and a computer processor is coupled to the magnetic sensor. Upon damage to the fall protection harness, the magnetic sensor senses the damage, the magnetic sensor generates a first signal to the computer processor, and the computer processor generates a second signal indicating the damage.

Abstract: A system includes multiple nodes, where each node includes one or more 802.11 wireless radios. The nodes are arranged in a hierarchical tree structure in which one or more nodes residing in one level of the tree structure are configured to communicate with one or more nodes residing in another level of the tree structure to propagate information in the tree structure. At least a first of the nodes is configured to operate its associated radio(s) in an 802.11 access point mode and in an 802.11 station mode. The first node is configured to relay data to and from one or more nodes in a lower level of the tree structure using the 802.11 access point mode. The first node is further configured to transmit data to and receive data from one or more nodes in a higher level of the tree structure using the 802.11 station mode.

Abstract: A system includes multiple nodes, where each node includes one or more 802.11 wireless radios. The nodes are arranged in a hierarchical tree structure in which one or more nodes residing in one level of the tree structure are configured to communicate with one or more nodes residing in another level of the tree structure to propagate information in the tree structure. At least a first of the nodes is configured to operate its associated radio(s) in an 802.11 access point mode and in an 802.11 station mode. The first node is configured to relay data to and from one or more nodes in a lower level of the tree structure using the 802.11 access point mode. The first node is further configured to transmit data to and receive data from one or more nodes in a higher level of the tree structure using the 802.11 station mode.

Abstract: A system includes first and second access points. Each access point includes one or more 802.11 wireless radios configured to communicate with a wireless node. The first and second access points are both configured to wirelessly receive first data from the wireless node at substantially a same time and forward the first data. The first and second access points are also both configured to receive second data for the wireless node. The first access point is configured to wirelessly transmit the second data to the wireless node, and the second access point is configured to refrain from transmitting the second data to the wireless node while the first access point is operating properly.

Abstract: A first mobile device includes a location processor, a communication processor, and a display, and a second mobile device includes a location processor and a communication processor. The first mobile device is configured to wirelessly communicate with the second mobile device, and the first mobile device is configured to display a superimposed icon representing a location of the second mobile device as viewed from the perspective of the first mobile device when the first mobile device is pointed in the direction of the second mobile device.

Abstract: A system and method for automatically determining the camera field of view in a camera network. The system has a plurality of spatially separated cameras and direction sensors, carried on respective cameras, configured to measure the angle directions of the field of views of the cameras. Elevation sensors are operably coupled to respective cameras to measure the elevation angles of thereof. A controller is configured to process direction and elevation measurement signals transmitted from the cameras to automatically determine the cameras' fields of views. One or more cameras having a field of view containing or nearby an event of interest can be selected from the determined field of views and indicated to a user via a graphical user interface. Selected cameras which are rotatably mounted can be rotated if need be to automatically bring the event of interest into the field of views of the selected cameras.

Abstract: A method of detecting motion in components that form part of a structure. The method includes flooding a first component with transmitted radio frequency signals and receiving reflected radio frequency signals from the first component with an antenna. The method further includes generating a first set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the reflected radio frequency signals and measuring the first set of intermediate frequency signals. The method further includes flooding a second component with transmitted radio frequency signals and receiving reflected radio frequency signals from the second component with an antenna. The method further includes generating a second set of intermediate frequency signals based on differences between the transmitted radio frequency signals and the additional reflected radio frequency signals and measuring the second set of intermediate frequency.