The invention belongs to the field of marine environment detection equipment, and particularly relates to a real-time transmission multivariate vector hydrophone array subsurface buoy system which acquires and stores marine environment noise of different depths. The real-time transmission multivariate vector hydrophone array subsurface buoy system comprises a vector hydrophone array, a watertight electronic storehouse, a communication cable, a buoy, an acoustic releaser and an anchor block. The vector hydrophone array is vertically arranged, the tail part is in the free state and the number of the array elements is freely adjusted according to the depth. The vector hydrophone array can simultaneously measure the marine environment information of different depths. As for the real-time performance, the acquired data can be uploaded to a shore station in real time to be processed with no requirement for waiting for recycling equipment to perform data recycling processing.

Real-time transmission multivariate vector hydrophone array subsurface buoy system

The invention discloses an array-type ocean acoustical signal measurement system. Multiple single channel ocean acoustical signal measurement instruments (NTD) are alternatively fixed on a plastic-wrapped steel cable. Two ends of the plastic-wrapped steel cable are conducted with seawater. A floating body at an upper end of the plastic-wrapping steel cable and a lead fish at a lower end of the plastic-wrapping steel cable are in a vertical state in the ocean. Each NTD is internally provided with a hydrophone and a temperature and salinity sensor. A host computer magnet ring on the plastic-wrapping steel cable, a node magnet ring of each NTD, the plastic-wrapping steel cable and the sea water form a coupling circuit. The NTDs obtain acoustical signals and temperature and depth information which are transmitted to an instrument cabin in the floating body through the coupling circuits and which are sent to a ground reception station via a Beidou all-in-one machine arranged on the floating body. The array-type ocean acoustical signal measurement system provided by the invention can synchronously obtain ocean acoustical signals at different depths according to needs, provides accurate basic data for the research on ocean acoustical environments, and has a wide application prospect.

Array-type ocean acoustical signal measurement system

The invention discloses a movable long-term real-time detector for oceanic earthquakes. The movable long-term real-time detector comprises a master control watertight device, a positioning and communicating device, an energy supply device and a sensing detection and signal processing device. By utilizing the positioning and communicating device, the problems of navigational positioning and remote communication of an oceanic earthquake sensing detector are solved, and the real-time detection of the oceanic earthquakes is realized; by utilizing the energy supply device, power is generated by virtue of solar energy and wave energy, and the energy is supplied for the oceanic earthquake sensing detector for a long time, so that the long-term detection of the oceanic earthquakes is realized; the sensing detection and signal processing device adopts an optical fiber laser hydrophone array, and noise reduction is respectively carried out on hardware and software, so that the sensitivity of the oceanic earthquake sensing detector is improved, and the accurate detection of low-earthquake-magnitude long-distance earthquake waves is realized. The movable long-term real-time detector has the advantages that the technical requirements on distribution and recycling are low, the cost is low, the real-time data transmission is realized, and the like.

Movable long-term real-time detector for oceanic earthquakes

The invention discloses a multi-parameter profile measuring instrument for the ocean. The multi-parameter profile measuring instrument comprises a measuring instrument body and an upper computer, wherein the measuring instrument body is connected with the upper computer through a cable or wireless communication; a processor circuit board, a temperature sensor, a conductivity sensor, a pressure sensor, a speed sensor, a sound velocity measuring module, a transceiving transducer and a transmission board are arranged in the measuring instrument body, the temperature sensor, the conductivity sensor, the pressure sensor, the speed sensor and the sound velocity measuring module are connected with the processor circuit board, the transceiving transducer is used for transmitting sound waves to a reflector and receiving the sound waves reflected by the reflector, and the transceiving transducer is connected with the sound velocity measuring module; the measuring instrument body is provided with an external wiring port and a release mechanism. The multi-parameter profile measuring instrument is flexible in application manner, varied in mounting and application manners, diversified in data processing manners and capable of increasing data measuring accuracy.

Multi-parameter profile measuring instrument for ocean

The invention discloses an omnidirectional active sound barrier system. The omnidirectional active sound barrier system comprises a data processing and monitoring platform, a mooring system laying assembly, and multi-node underwater small object active detection sonars; the mooring system laying assembly is used for limitation of the positions of the multi-node underwater small object active detection sonars in water; the multi-node underwater small object active detection sonars are used for automatic acoustic detection, and tracking of objects to be detected; the data processing and monitoring platform is used for remote control of the multi-node underwater small object active detection sonars, analysis and processing of detected data of the objects to be measured, and centralized display of the measured objects. The omnidirectional active sound barrier system can be used for automatic detecting and tracking on underwater small objects, and automatic alarming on suspected objects, islow in cost, rapid and flexible in laying, light in weight, movable, and is high in survival capability. A transceiver coupled transducer is adopted to realize the horizontally omnidirectional coverof detected objects; the data processing and monitoring platform is adopted to realize remote centralized control and display; and the omnidirectional active sound barrier system is capable of realizing large range, multi-node, remote bidirectional real-time data communication.

Omnidirectional active sound barrier system

The utility model discloses an array ocean sound signal measurement system, the alternate fixed permutation of NTD of many single channel ocean sound signal measurement appearance is moulded baogang cable both ends and sea water and is switched on on moulding baogang's cable, the fish lead messenger who moulds body and the lower extreme of baogang cable upper end moulds baogang's cable and be vertical state in the sea water, sets up hydrophone and thermohaline sensor in the NTD, mould host computer magnetic ring on baogang's cable, NTD the node magnetic ring, mould baogang's cable and sea water constitution coupling circuit. Underwater sound signal that NTD acquireed and temperature depth information transmit instrument room in the body to by the coupling circuit, and the big dipper all -in -one that sets up above the rethread body sends ground receiving station. The utility model relates to an array ocean sound signal measurement system can acquire the ocean acoustical signal of the different degree of depth under water as required in step, for the marine acoustics environmental studies provide more accurate essential data, has wide application prospect.

Array ocean sound signal measurement system

The invention discloses a towed underwater acoustic signal transmitting system-based dynamic signal generation device. The device is characterized in that the dynamic signal generating device includes an MSP430F1611 control system, an AD5930 DDS chip, an external switching circuit, a 40M oscillator, a PIC12F509 dynamic crystal oscillator, a crystal oscillator switching circuit, a serial port distribution circuit, a pressure sensor, a wireless communication module A, a wireless communication module B, an electronic compass, a power source management circuit, a charging battery, a signal conditioning circuit, an amplification and filtering circuit and a power source system. With the towed underwater acoustic signal transmitting system-based dynamic signal generation device provided by the technical schemes of the invention adopted, the adjustability of the frequency and amplitude of the output signals of the DDS chip can be realized simply and conveniently, and excellent effects can be realized when the DDS chip outputs low-frequency signals, and the application range of the dynamic signal generating device can be extended, and the performance of the dynamic signal generating device can be improved.

Towed underwater acoustic signal transmitting system-based dynamic signal generation device

The invention discloses a pull type underwater sound source system. The sound source system comprises a sound source shell, a watertight compartment arranged in the sound source shell, a sound sourcemodem, an energy storage capacitor, a signal generator, a transmitter and a transducer, wherein the energy storage capacitor, the transmitter, the signal generator and the sound source modem are arranged in the watertight compartment; the sound source modem is separately connected with a pull modem, the energy storage capacitor and the signal generator; the energy storage capacitor and the signalgenerator are connected with the transmitter separately; the energy storage capacitor supplies power to the transmitter; the signal generator generates an acoustic electric signal according to an instruction signal, and sends the acoustic electric signal to the transmitter; the transmitter is connected with the transducer, amplifies the power of the acoustic electric signal to obtain a high-poweracoustic electric signal, and sends the high-power acoustic electric signal to the transducer; the transducer sends out a vibration signal matching the high-power acoustic electric signal. The pull type underwater sound source system with relatively high sound source level provided by the invention can meet the need for deep ocean survey.

Pull type underwater sound source system

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Array-type ocean acoustical signal measurement system

Array ocean sound signal measurement system

Towed underwater acoustic signal transmitting system-based dynamic signal generation device

Pull type underwater sound source system