Abstract: Methods, apparatuses, and systems for establishing various network configurations within a gas detection system. The method includes initializing, by a computing device associated with a gateway, a root node of a tree network, monitoring for a beacon request broadcast, wherein the beacon request broadcast is detected by the computing device from a given one of the one or more broadcasting devices, the given broadcasting device switching over from a parallel network configuration to join the tree network, determining available capability to support a connection with the broadcasting device, generating a beacon response based on the determination of available capability, transmitting the beacon response to the broadcasting device, establishing the broadcasting device as a child node device based upon a receipt of a joining request, and transmitting a join confirmation to the broadcasting device based on the establishment of the broadcasting device as a child node device.

Abstract: A method for preparing perovskite nanopowder through a rheological phase reaction at low-temperature that can include: taking hydroxide and metallorganic compound as initial reactants; mixing and stirring the reaction raw materials to form a solid-liquid rheological phase mixture; and controlling the reaction temperature and period, under a low-temperature condition, to prepare perovskite nanopowder in nearly spherical shape and a size of 20-100 nm. This allows for advantages such as controllable product size, low cost, high yield per unit volume, environmental friendliness, high yield per unit volume, and high repeatability. The perovskite nanopowder obtained by this way is nearly spherical, are uniform in size distribution and have controllable granularity. This can be used as the ceramic substrate for electronic components such as high-end chip capacitors and PTC thermistors, etc., as well as the raw material for manufacturing ceramic 3D printing additives and electronic ceramic ink.

Abstract: In an embodiment, an apparatus (e.g., a gas detection device) includes a housing, a printed circuit board (PCB), one or more radio modems with a switching network. The housing includes a conductive cover and the cover plays as an antenna. The PCB may be fixed in the housing and includes a ground plane and a plurality of conductive feeds. Each feed are vertically mounted directly or indirectly on the PCB. When the cover is attached to the housing, each of the feeds electrically contact a respective connection point on the antenna. The switching network is to configure which feed should be connected to the radio modem. A extra grounding resistor is mounted or not to change antenna type to enhance the performance of antenna.

Abstract: In an embodiment, an apparatus (e.g., a gas detection device) includes a housing, a printed circuit board (PCB), one or more radio modems with a switching network. The housing includes a conductive cover and the cover plays as an antenna. The PCB may be fixed in the housing and includes a ground plane and a plurality of conductive feeds. Each feed are vertically mounted directly or indirectly on the PCB. When the cover is attached to the housing, each of the feeds electrically contact a respective connection point on the antenna. The switching network is to configure which feed should be connected to the radio modem. A extra grounding resistor is mounted or not to change antenna type to enhance the performance of antenna.

Abstract: Embodiments of the disclosure relate to systems and methods for isolating a base station beacon and gas reading transmission channel(s) based on a single radio wireless gas detection system. A gas detector may communicate on a first channel (e.g. a beacon channel) constantly listening to the base station beacon information. At a pre-defined interval (e.g. every 60 seconds), the gas detector radio may switch to a second channel (e.g. a data channel) to transmit gas reading data as well as the base station information to a central server. Software on the server may complete a triangulation algorithm to determine the location of the gas detector, using information obtained by the detector from the beacons.

Abstract: Embodiments of the disclosure relate to systems and methods for isolating a base station beacon and gas reading transmission channel(s) based on a single radio wireless gas detection system. A gas detector may communicate on a first channel (e.g. a beacon channel) constantly listening to the base station beacon information. At a pre-defined interval (e.g. every 60 seconds), the gas detector radio may switch to a second channel (e.g. a data channel) to transmit gas reading data as well as the base station information to a central server. Software on the server may complete a triangulation algorithm to determine the location of the gas detector, using information obtained by the detector from the beacons.