Sensor-powered wireless cable leak detection
AssigneePentair Thermal Management LLC
InventorKenneth McCoy
Life of this patent
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Abstract
Techniques for leak detection are described. A leak detection module may include a plurality of wires comprising one or more collection points. The leak detection module may further include a capacitor configured to store a charge for powering the module during a power-off state and a plurality of switches to be controlled by a processor. The processor may initiate a predetermined switching sequence when a power-off state has been detected. During the switching sequence, leak detection data may be collected at the one or more collection points. The collected leak detection data may be stored in a set of registers. The leak detection module may transmit the stored leak detection data. Other embodiments are described and claimed.
Claims24
A leak detection module, comprising:
- a plurality of wires comprising one or more collection points;
- a capacitor for powering the module during a power-off state;
- a plurality of switches;
- a processor configured to detect the beginning of the power-off state and to initiate and control a predetermined switching sequence for the plurality of switches during the power-off state;
- and
- a set of registers configured to store leak detection data collected at the one or more collection points during the predetermined switching sequence.
A leak detection system, comprising:
- a plurality of leak detection modules connected using a plurality of wires, each leak detection module comprising:
- a capacitor for powering the module during a power-off state;
- a plurality of switches;
- a processor configured to detect the beginning of the power-off state and to initiate and control a predetermined switching sequence for the plurality of switches during the power-off state;
- one or more collection points each in electrical communication with one or more of the plurality of wires;
- and
- a set of registers configured to store leak detection data collected at the one or more collection points during the predetermined switching sequence.
A method for leak detection, the method comprising the steps of:
- starting a power-on state within a leak detection module;
- charging a capacitor of the leak detection module during the power-on state, wherein power is provided using at least one of a plurality of wires of the leak detection module;
- detecting a power-off state by a processor of the leak detection module;
- initiating, by the processor, a predetermined switching sequence for a plurality of switches within the leak detection module;
- collecting, leak detection data at one or more collection points within the leak detection module;
- and
- storing the collected leak detection data within a set of registers of the leak detection module.
Dependencies are inferred from the claim text.