EXTENSION OF BEACON OPERATIONAL LIFE USING INTEGRAL PHOTOCELL

    公开(公告)号:US20210314867A1

    公开(公告)日:2021-10-07

    申请号:US17350807

    申请日:2021-06-17

    Abstract: Examples of a system and wireless RF device having an extended operational life are provided. The wireless RF device includes a substrate, at least one sensor configured to detect an occurrence of an event, a RF transceiver arranged on the substrate and configured to transmit and receive RF signals in an area, and a power supply coupled with the substrate. A processing device is coupled to the at least one sensor and the RF transceiver, and configured to: in response to expiration of a time period or the detection of the occurrence of an event, transition the RF device from a sleep or standby mode to an active mode; configure the RF transceiver to receive or transmit a data packet; obtain a status of an occurrence of another event from the at least one sensor; and transition the RF device from the active mode to the sleep or standby mode.

    RFID SYSTEM WITH ANTENNA INTEGRATED IN A LUMINAIRE

    公开(公告)号:US20190213368A1

    公开(公告)日:2019-07-11

    申请号:US15866782

    申请日:2018-01-10

    Abstract: A lighting system includes luminaires each having a light source for providing illumination in a space and a radio frequency identification (RFID) antenna. An RFID reader is coupled to the RFID antennas in all the luminaires. The RFID reader may transmit at least one RFID intended recipient message from at least one of the antennas and receive a responsive RFID reply message from a recipient device within the space via a plurality of the antennas. The RFID reader may determine a signal attribute of a reply message signal received via each receiving antenna. The determined signal attributes of the reply message signals received via antennas and information about locations of the receiving antennas are processed to estimate a position of the recipient device within the space.

    OCCUPANCY DETECTION IN A RADIO FREQUENCY WIRELESS COMMUNICATION NETWORK

    公开(公告)号:US20190250265A1

    公开(公告)日:2019-08-15

    申请号:US15897678

    申请日:2018-02-15

    Abstract: The disclosure provides an example of a system including a radio frequency (RF) wireless communication network (network) including a plurality of nodes in an area and a computer coupled to the network. Each of the nodes includes a transmitter and a receiver. At plurality of times, each transmitter transmits RF spectrum signals (signals) and each receiver receives the signals and also generates an indicator data of a signal characteristic of the received signal propagated in the network. When each time among the plurality of times is a current time, the computer obtains the indicator data of the signal, determines a modification in the indicator data at the current time from the indicator data at a preceding time due to a movement of an occupant in the area and detect an occupancy condition in the area based on the modification in the indicator data and a parameter of a configuration of the network.

    COMMAND EXECUTION SYNCHRONIZATION IN A FLOOD NETWORK

    公开(公告)号:US20200187322A1

    公开(公告)日:2020-06-11

    申请号:US16678124

    申请日:2019-11-08

    Abstract: An example method includes propagating a message including an instruction, from a gateway to a plurality of ancillary nodal devices (devices) in a flood network. Each of the plurality of devices is within an equal number of transmissive steps of the gateway through the flood network such that the message is propagated with approximately equivalent delay to each of the plurality of devices and substantially simultaneously received by all of the devices. The method also includes substantially simultaneously transmitting the message from each respective one of the devices to end nodal devices (end nodes) of a group of end nodes in the flood network in communication with the respective one of the devices. The method further includes, upon receipt of the message from the devices, substantially simultaneously executing the instruction, by each of the group of the end nodes of the flood network.

    ASSET TRACKING USING ACTIVE WIRELESS TAGS THAT REPORT VIA A LOCAL NETWORK OF CONNECTED BEACONS

    公开(公告)号:US20190294833A1

    公开(公告)日:2019-09-26

    申请号:US16413239

    申请日:2019-05-15

    Abstract: A system includes a plurality of lighting devices connected in a network to communicate in a service area, and a smart tag configured to communicate with one or more of the lighting devices. Each respective lighting device is configured to transmit a radio frequency signal including a device identifier of the respective lighting device. In response to expiration of a time period or an occurrence of an event, the smart tag is configured to transition from a low power consumption sleep mode to an awake mode. During the awake mode, the smart tag is configured to provide information that enables a processor or other computing device to determine a position of the smart tag or any asset associated with the smart tag in the service area. Upon transmission of the information, the smart tag is transitioned from the awake mode back to the low power consumption sleep mode.

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