A deep-sea sound source localization method, a computer device and a storage medium. The method includes: deploying at least two underwater gliders in a designated sea area, so as to respectively record a broadband signal which is emitted by a broadband sound source (1); obtaining a waveform envelope of the signal, and then calculating a waveform envelope of a simulated signal (2); performing cross-correlation analysis on the two waveform envelopes (3); and determining an estimated value of a distance from the sound source, and finally obtaining an estimated position of the sound source by means of a geometrical relationship (3). By means of the method, deployment of a large-depth vertical receiving array is not required. The system has low complexity, and is easy to deploy and operate, which can be applied to a relatively large area. In addition, simple data analysis and calculation are performed without the need for manual parameter adjustment, and target localization can be achieved only by knowing an approximate azimuth of movement of a target. Underwater gliders have good maneuverability and can be deployed according to task requirements, thereby achieving target localization and tracking in a relatively large area.

A deep-sea sound source localization method, a computer device and a storage medium. The method includes: deploying at least two underwater gliders in a designated sea area, so as to respectively record a broadband signal which is emitted by a broadband sound source (1); obtaining a waveform envelope of the signal, and then calculating a waveform envelope of a simulated signal (2); performing cross-correlation analysis on the two waveform envelopes (3); and determining an estimated value of a distance from the sound source, and finally obtaining an estimated position of the sound source by means of a geometrical relationship (3). By means of the method, deployment of a large-depth vertical receiving array is not required. The system has low complexity, and is easy to deploy and operate, which can be applied to a relatively large area. In addition, simple data analysis and calculation are performed without the need for manual parameter adjustment, and target localization can be achieved only by knowing an approximate azimuth of movement of a target. Underwater gliders have good maneuverability and can be deployed according to task requirements, thereby achieving target localization and tracking in a relatively large area.

An electronic device unit for detection of emergency calls initiated (emanating) from cell phone or other personal wireless communication handheld units, wherein the electronic device unit for detection of emergency calls is installed and integrated as a component detector of a fire alarm system, intrusion alarm system, surveillance system, access control system, SCADA system or other building and facility monitoring systems. A cell phone and other personal wireless devices that transmit special signals that are received by an electronic device unit for detection of emergency calls. A cell phone and other personal wireless devices that performs two way data communications with an electronic device unit for detection of emergency calls.

Disclosed herein are wireless networks of gunshot detector arrays providing the firing location and trajectory of a gunshot, while being tolerant of clock drift among the network. Individual gunshot detectors may be battery-powered employing one or more microphones. Detectors may time-synchronize infrequently to conserve power. Detectors may communicate wirelessly to a central device that evaluates gunshot candidates, associates those candidates between detectors to individual gunshot events, and performs calculations to arrive at a solution for a gunshot direction and/or origin. Combinations of contemporaneous gunshot candidates may be reviewed for a best positional solution. The location of gunshot events may be displayed on an overhead image or map, to persons providing remedial actions, optionally with trajectories and potential zones of impact and damaged assets.

Disclosed herein are wireless networks of gunshot detector arrays providing the firing location and trajectory of a gunshot, while being tolerant of clock drift among the network. Individual gunshot detectors may be battery-powered employing one or more microphones. Detectors may time-synchronize infrequently to conserve power. Detectors may communicate wirelessly to a central device that evaluates gunshot candidates, associates those candidates between detectors to individual gunshot events, and performs calculations to arrive at a solution for a gunshot direction and/or origin. Combinations of contemporaneous gunshot candidates may be reviewed for a best positional solution. The location of gunshot events may be displayed on an overhead image or map, to persons providing remedial actions, optionally with trajectories and potential zones of impact and damaged assets.

An acoustic location determination system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The transmitting device includes a first transducer configured to transmit first acoustic signals having a first frequency, and a second transducer configured to transmit second acoustic signals having a second frequency. The transmitting device further includes a beacon device configured to transmit beacon data via a short-range wireless communication technique. The transmitting device further includes one or more control devices configured to select the first or second acoustic signals based at least in part on one or more operating capabilities of one or more mobile units associated with the real-time locating system. The one or more control devices are further configured to cause transmission of the selected acoustic signals and the beacon data.

An acoustic location determination system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The transmitting device includes a first transducer configured to transmit first acoustic signals having a first frequency, and a second transducer configured to transmit second acoustic signals having a second frequency. The transmitting device further includes a beacon device configured to transmit beacon data via a short-range wireless communication technique. The transmitting device further includes one or more control devices configured to select the first or second acoustic signals based at least in part on one or more operating capabilities of one or more mobile units associated with the real-time locating system. The one or more control devices are further configured to cause transmission of the selected acoustic signals and the beacon data.

The disclosure provides a broadcast-type underwater navigation positioning system and method, wherein the system comprises a base station network consisting of a plurality of underwater base stations distributed on a seabed and a to-be-positioned user terminal located underwater, wherein the underwater base station comprises a bottom-mounted sonar and an mooring sonar, the bottom-mounted sonar and the mooring sonar are connected through a cable and are configured for ranging and communication through an underwater acoustic signal, the mooring sonar is integrated with an inertial measurement unit I, and the user terminal is provided with a passive sonar configured to unidirectionally receive an underwater acoustic signal sent by the mooring sonar for ranging and communication. The underwater navigation positioning system and method disclosed in the present invention can expand the service range of the base station, increase the capacity of the user terminal and improve the precision of regional sound velocity products.

The disclosure provides a broadcast-type underwater navigation positioning system and method, wherein the system comprises a base station network consisting of a plurality of underwater base stations distributed on a seabed and a to-be-positioned user terminal located underwater, wherein the underwater base station comprises a bottom-mounted sonar and an mooring sonar, the bottom-mounted sonar and the mooring sonar are connected through a cable and are configured for ranging and communication through an underwater acoustic signal, the mooring sonar is integrated with an inertial measurement unit I, and the user terminal is provided with a passive sonar configured to unidirectionally receive an underwater acoustic signal sent by the mooring sonar for ranging and communication. The underwater navigation positioning system and method disclosed in the present invention can expand the service range of the base station, increase the capacity of the user terminal and improve the precision of regional sound velocity products.

Provided is an electronic apparatus comprising a microphone, a communication interface, a memory, and at least one processor to control the electronic apparatus. The processor may execute at least one instruction stored in the memory to: based on a preset user voice of a user being received through the microphone, control the communication interface to request at least one first sound information from at least one home appliance, each of the at least one first sound information corresponding to the preset user voice received at each of the at least one home appliance, receive, through the communication interface, the at least one first sound information from the at least one home appliance, and identify a position of the user based on the preset user voice and the at least one first sound information.