Embodiments of the Invention provide real-time portable, deployable data acquisition units and monitoring consoles that can be used in combination with radio communication technology to provide for monitoring of wildfires and local weather conditions to aid in fighting wildfires.

This invention relates to a method of monitoring a fluid processing network having a plurality of fluid processing regions including the steps of: receiving measured current parameter values at known points of the network; determining from the measured current parameter values regions of the network that are active, all other regions being deemed inactive; subtracting inactive regions of the network from a model of the fluid processing network to provide a current active network model; determining current parameter values of the current active network at least at points remote from the known points, the parameter values at said remote points being determined using the measured current parameter values and the current active network model; based on the current parameter values, determining if one or more pre-specified boundaries are breached; and performing a predetermined action if one or more said boundaries are breached.

Disclosed aspects relate to managing a set of devices using a set of acoustic emission data which indicates device-health of the set of devices. The set of devices is coupled with a set of acoustic emission sensors. Based on the set of acoustic emission data, a triggering event related to a first device of the set of devices is detected. Using the set of acoustic emission data, an event response which includes a first modification with respect to operation of the first device is determined. Establishment of the event response which includes the first modification with respect to operation of the first device is initiated.

A system includes a memory configured to store a first acoustic profile associated with a device. The first acoustic profile includes at least two of the following acoustic characteristics: frequency, amplitude, and time. The system further includes a processor communicatively coupled to the memory and an acoustic sensor. The processor is configured to receive, from the acoustic sensor, an acoustic signal comprising one or more of the frequency and amplitude, compare the received acoustic signal to the first acoustic profile, and determine that the received acoustic signal matches the first acoustic profile based on the comparison of the received acoustic signal to the first acoustic profile.

A hydrophone has a pair of end caps each disposed on a different open end of an air-backed cylinder of a piezoelectric ceramic material. An electrode or lead extends through one of the end caps and into the cylinder, and has a shape and a lateral width that extends across an interior of the cylinder and abuts an inner surface of the cylinder at multiple points.

A sensor device, including a sensor having a sound transducer to emit sonic waves and convert received sonic waves to electrical signals. A sensor evaluation unit carries out surrounding-area monitoring during a normal operation of the sensor, by evaluating electrical signals of the sound transducer. During a monitoring mode of the sensor, a monitoring unit of the sensor device measures an impedance of the sound transducer for different excitation frequencies of excitation signals produced with a signal generator of the sensor device. The sensor device includes a first and a second signal path, which are each connected to the sound transducer and are connectable to the signal generator. To reset the sensor from normal operation to the monitoring mode, a first control unit of the sensor device is configured to decouple the signal generator from the first signal path and to connect it to the second signal path.

A measurement device and measurement method for evaluating an acoustic device that allows a sound to be transmitted via vibration transmission by being held by a human ear includes an ear model unit having an ear model modeled after a human ear and an artificial external ear canal unit continuous with the ear model. The ear model unit is formed from rubber, a same material as an auricle model conforming to IEC 60318-7 or IEC 60268-7, or a material having a Shore hardness of from 30 to 60. The ear model is provided with an auricle or a hole which holds the acoustic device. A microphone is configured to measure an air-conducted component generated within an artificial ear canal of the artificial ear canal unit by vibration transmitted to the ear model unit from the acoustic device held by the auricle or the hole.

A measurement device and measurement method for evaluating an acoustic device that allows a sound to be transmitted via vibration transmission by being held by a human ear includes an ear model unit having an ear model modeled after a human ear and an artificial external ear canal unit continuous with the ear model. The ear model unit is formed from rubber, a same material as an auricle model conforming to IEC 60318-7 or IEC 60268-7, or a material having a Shore hardness of from 30 to 60. The ear model is provided with an auricle or a hole which holds the acoustic device. A microphone is configured to measure an air-conducted component generated within an artificial ear canal of the artificial ear canal unit by vibration transmitted to the ear model unit from the acoustic device held by the auricle or the hole.

A system and a method of diagnosing a contactor through a sound sensor, which determines whether a contactor is erroneously operated based on a result of sensing a mechanical transition sound generated during an on/off operation of the contactor. The contactor diagnosis may be applied to a battery management system and may further include counting the number of transition operations of the contactor and/or may be used for diagnosing the life of the contactor.

A system and a method of diagnosing a contactor through a sound sensor, which determines whether a contactor is erroneously operated based on a result of sensing a mechanical transition sound generated during an on/off operation of the contactor. The contactor diagnosis may be applied to a battery management system and may further include counting the number of transition operations of the contactor and/or may be used for diagnosing the life of the contactor.