Abstract: A static memory device including an instrument, a wireless radio, a shared memory, an outgoing memory portion and an incoming memory portion. The instrument includes an environmental sensing device, a hazard detection device, and/or an industrial safety device. The wireless radio sends and receives information on a wireless mesh network. The shared memory is connected to the instrument and wireless radio and includes static message memory having static messages related to the instrument. The outgoing memory portion receives outgoing information from the instrument and transmits the outgoing information to the wireless radio for transmission on the wireless mesh network. The incoming memory portion receives incoming information from the wireless radio and transmits the incoming information to the instrument. The shared memory restricts the wireless radio and the instrument from both raising grant lines and granting data to either the incoming memory portion or the outgoing memory portion simultaneously.

Abstract: A method of providing information about a leader node to a plurality of follower nodes in a wireless mesh communication network is provided. The method includes designating the leader node; designating the plurality of follower nodes; and designating one or more predetermined frequency ranges as a public channel. The method further includes from the leader node and during a plurality of network intervals having a predetermined length of time, transmitting a sync message at a beginning of each network interval to the plurality of follower nodes. The method further includes during each network interval in which a sync message is received by any one of the plurality of follower nodes, transmitting from any of the plurality of follower nodes receiving a sync message, on the public channel, a message advertising at least one property of the leader node after receipt of the sync message.

Abstract: Disclosed is a tangible article of manufacture having instructions stored thereon that, when executed, cause a machine to perform operations for tracking an operator and operator status using a safety device. The operations include programming a plurality of NFC tags with assignment information, wherein the assignment information is at least one of a location assignment for NFC tags being placed at particular locations and an instrument operator assignment for NFC tags distributed to multi-gas detection instrument operators. The instructions further include receiving temporary assignment information at the safety device when an NFC radio of the safety device is brought in proximity to at least one of the plurality of NFC tags; and tagging safety device data with the temporary assignment information.

Abstract: A wireless mesh network including a leader node and a plurality of follower nodes is provided. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval. The leader node and the plurality of follower nodes transmit information during a transmission period of the network interval and do not transmit information during a sleep period of the network interval. The leader node and the plurality of follower nodes use less power in the sleep period than in the transmission period; and the plurality of follower nodes each include a timer adapted to time the transmission period and the sleep period for each of a plurality of future network intervals in an absence of continued receipt of the sync message from the leader node during the plurality of future network intervals.

Abstract: A network for connecting a plurality of network nodes including a leader node and a plurality of follower nodes is provided. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval. The sync message contains data indicating a number of network nodes in the network. The leader node and the plurality of follower nodes transmit information during a transmission period of the network interval and do not transmit information during a sleep period of the network interval. The network interval is of a fixed length of time, the transmission period is of a variable length of time based upon the number of network nodes in the network, and the sleep period includes remaining time of the network interval after the transmission period.

Abstract: A network for connecting a plurality of network nodes includes a leader node and a plurality of follower nodes. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval, wherein the leader node and the plurality of follower nodes transmit information during a transmission period and do not transmit information during a sleep period of the network interval, and wherein during a predetermined time of the transmission period of the network interval each of the follower nodes that received the sync message transmit a message advertising one or more properties of the leader node. The network nodes are environmental sensing devices that are part of a worker safety system.

Abstract: Disclosed herein is a system that provides location and information communication including a beacon, wherein the beacon transmits both information and data related to the beacon's relevant range and a receiving device, wherein the receiving device determines whether the transmitted information is relevant based on the received signal strength and the transmitted data related to relevant range.

Abstract: A method of provisioning a sensor tag for monitoring or managing an animal includes providing a mount for the sensor tag, wherein the mount is adapted to be worn on a body part of an animal and comprises an RFID device and the sensor tag is releasably connectable to the mount. The method further includes exciting the RFID device, wherein the RFID device is programmed with data of an animal. Upon exciting the RFID device, configuring the sensor tag to be associated with the animal based on the data of the animal.

Abstract: Methods of determining beacon relevance include receiving a beacon broadcast resulting in a received beacon broadcast, wherein the beacon broadcast comprises a range of relevance and informational data, determining a strength of the received beacon broadcast, comparing the range of relevance with the strength of the received beacon broadcast, and identifying the beacon broadcast as relevant if the strength of the received beacon broadcast exceeds the range of relevance.

Abstract: A system for impact prevention using mobile beacons includes a receiving device associated with a user, the receiving device comprising a receiver adapted to receive a beacon broadcast from one or more of a plurality of beacons, the beacon broadcast comprising informational data and a range of relevance, a processor, and an alarm, wherein when the processor determines that the receiving device is within the range of relevance, the alarm is activated.

Abstract: A system for impact prevention using mobile beacons includes a receiving device associated with a user, the receiving device comprising a receiver adapted to receive a beacon broadcast from one or more of a plurality of beacons, the beacon broadcast comprising informational data and a range of relevance, a processor, and an alarm, wherein when the processor determines that the receiving device is within the range of relevance, the alarm is activated.

Abstract: Systems for muster include an entrance receiving device in a location adapted to receive a plurality of beacon broadcasts from one or more of a plurality of mobile beacons, each associated with a worker and broadcasting an identification ID of the worker, to create an on-site record of workers entering or exiting the location. The system includes a muster site receiving device at a muster site to record an identification ID from beacon broadcasts of workers at the muster site. The on-site record is compared to the recorded muster site IDs to determine if all workers have mustered. Alarms may be triggered if not.

Abstract: Methods of determining beacon relevance include receiving a beacon broadcast resulting in a received beacon broadcast, wherein the beacon broadcast comprises a range of relevance and informational data, determining a strength of the received beacon broadcast, comparing the range of relevance with the strength of the received beacon broadcast, and identifying the beacon broadcast as relevant if the strength of the received beacon broadcast exceeds the range of relevance.

Abstract: Disclosed herein is a system that provides location and information communication including a beacon, wherein the beacon transmits both information and data related to the beacon's relevant range and a receiving device, wherein the receiving device determines whether the transmitted information is relevant based on the received signal strength and the transmitted data related to relevant range.

Abstract: A system for creating of list of active beacons includes at least one receiving device, comprising a receiver adapted to receive a beacon broadcast from one or more of a plurality of beacons, resulting in one or more received beacon broadcasts, a processor, a memory, and a smart beacon application. For each received beacon broadcast comprising informational data and data regarding a range of relevance for that beacon, the smart beacon application: 1) determines whether the beacon is relevant by comparing a strength of the received beacon broadcast to the range of relevance in the beacon broadcast, and 2) creates a list of relevant beacons.

Abstract: A network for connecting a plurality of network nodes includes a leader node and a plurality of follower nodes. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval, wherein the leader node and the plurality of follower nodes transmit information during a transmission period and do not transmit information during a sleep period of the network interval, and wherein during a predetermined time of the transmission period of the network interval each of the follower nodes that received the sync message transmit a message advertising one or more properties of the leader node. The network nodes are environmental sensing devices that are part of a worker safety system.

Abstract: A bladder syringe for a fluid delivery system includes a cylindrical body, a cap-bladder assembly, a plunger element disposed in the cylindrical body, and a mounting assembly to secure the cap-bladder assembly to the cylindrical body. The cylindrical body has a distal end and a proximal end and defines a throughbore. The cap-bladder assembly is adapted for connection to the distal end of the cylindrical body, and includes a cap body and a bladder. The cap body defines an interior cavity and a distal discharge conduit and is adapted to engage the distal end of the cylindrical body. A disc-shaped bladder is disposed within the interior cavity and typically includes a central membrane portion. The plunger element is disposed in the throughbore of the cylindrical body and is vented to enable evacuation of the space between the plunger element and the cap-bladder assembly in the cylindrical body.