The present invention relates to a fire pump system, and more particularly, to a fire pump system capable of detecting and responding to the presence or absence of sticking inside a pump. In more detail, the present invention includes a sticking detection functional pump including a sticking ...
But the need for a line of sight communication limits the use of optical communication in many applications of sensor nodes. Research is still going on to overcome these limitations [10]. Sensor network’s success depends upon the available low-cost resources that include low-power hardware and...
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Laundry. It’s one of life’s inescapable cycles, but at least we have machines now. The downside of this innovation is that since we no longer monitor every step — the rock-beating, the river-rinsing, the line-hanging and -retrieving — the pain of laundry has evolved into the monoton...
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Water source heat pump head pressure control for hot gas reheat Patent number:11624518 Abstract:A method of conditioning air includes controlling a secondary refrigerant flow control valve to select between a first mode in which refrigerant flows from a discharge line to a main refrigerant flow contr...
pump, a compressor, a turbine, or a fan; a drive-sense circuit (DSC) operably coupled to the input electrical power signal that is provided to the rotating equipment via a coupler, wherein, when enabled, the DSC operably coupled and configured to: drive a signal via a single line to ...
The device integrates H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for high side N-channels MOSFETs and 100% duty cycle support. Integrated current sensing allows for the driver ...
(CAT6 Ethernet, HomePlug, etc.). The wall plug interfaces110can serve as wireless or wired repeaters, and/or can function as bridges between (i) devices plugged into AC outlets and communicating using Homeplug or other power line protocol, and (ii) devices that not plugged into AC outlets....
A further problem with time based control systems concerns the purge operation. If a hot water wash cycle is selected, water from the hot water line is flushed directly down the drain for a period of time to insure that all cold water has been purged from the hot water line. If the hot...