CN110763207A - Intelligent sounding system - Google Patents
Intelligent sounding system Download PDFInfo
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- CN110763207A CN110763207A CN201911045724.7A CN201911045724A CN110763207A CN 110763207 A CN110763207 A CN 110763207A CN 201911045724 A CN201911045724 A CN 201911045724A CN 110763207 A CN110763207 A CN 110763207A
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- sounding
- transducer
- measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/008—Surveying specially adapted to open water, e.g. sea, lake, river or canal measuring depth of open water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses an intelligent sounding system which comprises a power supply module, a sounding module and a hydrological parameter measuring module, wherein the sounding module comprises a DSP (digital signal processor), a sounding transceiving circuit and a sounding transducer, and the hydrological parameter measuring module comprises an MCU (microprogrammed control unit), a time measuring unit, a temperature sensor, a pressure sensor, an acoustic velocity measuring transceiving circuit and an acoustic velocity measuring transducer. According to the invention, the draft and the sound velocity value of the transducer are acquired simultaneously, so that the depth value of water at the transducer is corrected in real time, and the acoustic map is derived through a network, thereby greatly improving the accuracy of water depth measurement and reducing the workload of workers. Meanwhile, the invention has the advantages of high integration of product data processing, small product volume and convenient measurement and use. According to the invention, data processing and sonogram transmission are completed on the bottom layer, accurate water depth data can be obtained through wireless WIFI, the data fusion is strong, and the method is suitable for being installed on unmanned automatic equipment.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to an intelligent depth sounding system.
Background
At present, a portable depth finder is mainly used for measuring the water depth in real time, and the depth finder indirectly measures the water depth value through the time of sound waves back and forth between the transducer surface and the water bottom. The round trip time of the sound wave depends on the precision of the transmit-receive processing circuitry and the timer of the analog circuitry portion of the device. The actual true depth is obtained by the transducer draft plus the round trip time of the sound wave x the sound velocity/2, and therefore, the transducer draft and the sound velocity become main parameters influencing the measurement depth accuracy.
The general depth finder equipment can not measure the draught depth of the transducer and the sound velocity of the transducer in a working water area, and in measurement, workers often need to manually estimate and manually input the two parameters, so that the measurement precision is greatly reduced, the measurement workload of the workers is increased, the integration degree of the equipment is reduced, and the accuracy of the water depth measurement cannot be guaranteed. Particularly in the river mouth sea area, due to the invasion of sea tides, the salinity value changes greatly, the sound velocity value change is seriously influenced, and the measurement depth error is large; however, if the sound velocity value is obtained in time, the measurement precision can be greatly improved. Therefore, in many cases, when a traditional portable depth finder is used for real-time measurement, great inconvenience and difficulty are brought to measurement of workers, and the accuracy of a measurement result is seriously affected by depth measurement data obtained through estimation.
Therefore, equipment capable of simultaneously measuring the underwater parameters such as the draft and the underwater sound velocity of the transducer is absent in the market. In order to realize mapping automation of the depth sounding system, further improve the measurement precision and eliminate human errors as much as possible, an intelligent depth sounding system is urgently needed to be designed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an intelligent sounding system.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides an intelligent sounding system, which comprises a power module, a sounding module and a hydrological parameter measurement module, wherein the power module supplies power for the sounding module and the hydrological parameter measurement module; hydrological parameter measurement module includes MCU main control unit, time measuring unit, temperature sensor, pressure sensor, sound velocity measurement transceiver circuit and sound velocity measurement transducer, MCU main control unit and time measuring unit, pressure sensor both way communication are connected, temperature sensor, sound velocity measurement transceiver circuit and time measuring unit both way communication are connected, sound velocity measurement transceiver circuit still measures transducer both way communication with the sound velocity and is connected, MCU main control unit still passes through serial ports both way communication with the DSP treater and is connected.
As a preferred technical scheme of the invention, the hydrological parameter measurement module further comprises a storage module, and the storage module is in bidirectional communication connection with the MCU main control unit.
As a preferred technical scheme of the invention, a transmitting circuit of the sounding transceiver circuit loads a control signal from a DSP processor after driving and power amplification on a sounding transducer and transmits the control signal, a water bottom echo is received by the sounding transducer and then converted by the sounding transceiver circuit, and the water bottom echo is sequentially output to the DSP processor through an isolation transformer, a preamplifier, a TVG, a band-pass filter, an AGC, a post-amplifier and a detection circuit, and control gains of the AGC and the TVG are generated by a DA of the DSP processor.
As a preferred technical scheme of the invention, the MCU main control unit sends a control signal to the time measuring unit, the time measuring unit starts to work to generate a pulse control signal and sends the pulse control signal to a transmitting circuit of the sound velocity measuring transceiving circuit, the pulse control signal is transmitted out through the sound velocity measuring transducer and passes through a baffle reflecting surface below the sound velocity transducer, an echo signal is received by a receiving circuit and finally returns to the time measuring unit, the time difference of one round trip is calculated, and then the time difference is sent to the MCU main control unit to calculate the sound velocity value.
As a preferred technical scheme of the invention, the pressure sensor is used for measuring the draft, the data sampling of the pressure sensor is completed through the command of the MCU main control unit, and then the data is transmitted to the MCU main control unit to calculate the draft.
As a preferred technical scheme of the invention, the temperature sensor is connected to a port of the time measuring unit to finish the underwater temperature measurement, and the temperature measuring unit of the high-precision time measuring unit is utilized to finish the temperature measurement with high precision and low power consumption based on the discharge time of the resistor to the capacitor.
The invention has the beneficial effects that: according to the invention, the draft and the sound velocity value of the transducer are acquired simultaneously, so that the depth value of water at the transducer is corrected in real time, and the acoustic map is derived through a network, thereby greatly improving the accuracy of water depth measurement and reducing the workload of workers. Meanwhile, the invention has the advantages of high integration of product data processing, small product volume and convenient measurement and use. According to the invention, data processing and sonogram transmission are completed on the bottom layer, accurate water depth data can be obtained through wireless WIFI, the data fusion is strong, and the method is suitable for being installed on unmanned automatic equipment. The invention can calibrate the error caused by the sound velocity change in real time and greatly improve the measurement precision.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent sounding system according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In order to achieve the purpose of the present invention, as shown in fig. 1, in one embodiment of the present invention, an intelligent sounding system is provided, which includes a power module, a sounding module, and a hydrological parameter measurement module.
Firstly, the power module supplies power for the depth measurement module and the hydrological parameter measurement module, and the power module provides work guarantee for the whole system. The power supply module is composed of DCDC modules, and is designed by adopting ready-made mature modules, so that sufficient and stable power output can be provided.
And secondly, the depth measurement module is a core part of the whole depth measuring instrument and comprises a DSP processor, a depth measurement transceiving circuit and a depth measurement transducer, the DSP processor is in bidirectional communication connection with the depth measurement transceiving circuit, the depth measurement transceiving circuit is in bidirectional communication connection with the depth measurement transducer, and the DSP processor is also in bidirectional communication connection with an upper computer through a router. The sounding transceiver circuit is a key of strong and weak sounding capability, a transmitting circuit of the sounding transceiver circuit loads a control signal from a DSP processor after driving and power amplification and transmits the control signal to a sounding transducer, a water bottom echo is received by the sounding transducer and then converted by the sounding transceiver circuit, the water bottom echo is sequentially output to the DSP processor through an isolation transformer, a preamplifier, a TVG, a band-pass filter, an AGC (automatic gain control), a post-amplifier and a detection circuit, and control gains of the AGC and the TVG are generated by a DA (digital-to-analog) of the DSP processor. The DSP processor is an operation center of the sounding system, is responsible for system synchronization and sounding tracking, controls the power and pulse width of the transmitter, controls the receiving gain, collects envelope signals output by the receiver and sends real-time sampling values to external equipment through a cable.
The communication part selects an RS232 serial port to carry out communication between the depth measurement module and the sound measurement module. The intelligent depth sounding system is controlled by external equipment (such as a computer) through a network interface or WIFI (wireless fidelity), working parameters (such as sound velocity, blind area, measuring range, pulse width, working mode and the like) of the intelligent depth sounding system can be set, most of the parameters can be set to default values, and the intelligent depth sounding system can be directly powered on to work when no special setting is needed.
Thirdly, the hydrological parameter measurement module comprises an MCU main control unit, a time measurement unit, a temperature sensor, a pressure sensor, a sound velocity measurement transceiving circuit and a sound velocity measurement transducer, the MCU main control unit is in two-way communication connection with the time measurement unit and the pressure sensor, the temperature sensor and the sound velocity measurement transceiving circuit are in two-way communication connection with the time measurement unit, the sound velocity measurement transceiving circuit is also in two-way communication connection with the sound velocity measurement transducer, and the MCU main control unit is further in two-way communication connection with the DSP processor through serial ports.
The system takes the MCU as a main control chip, adopts the international advanced technology to directly measure the sound velocity and the temperature, and uses the pressure sensor to measure the seawater pressure to indirectly obtain the depth. In order to meet the requirement of high precision, a high-precision time measurement chip is adopted to measure the propagation time difference of the ultrasonic wave, so that high-precision sound velocity measurement is realized. The temperature sensor is connected to the port of the time measuring unit to complete the underwater temperature measurement, and based on the discharge time of the resistor to the capacitor, the temperature measuring unit of the high-precision time measuring unit is utilized to complete the high-precision and low-power consumption temperature measurement.
In order to expand functions, the hydrological parameter measurement module further comprises a storage module, and the storage module is in bidirectional communication connection with the MCU main control unit.
The sound measurement part is the core part of the whole hydrological parameter measurement module and comprises an MCU main control unit, a time measurement unit, a sound measurement transceiving circuit and a sound measurement transducer. The MCU main control unit sends a control signal to the time measuring unit, the time measuring unit starts to work to generate a pulse control signal and sends the pulse control signal to a transmitting circuit of the sound velocity measuring and receiving circuit, the pulse control signal is transmitted out through the sound velocity measuring transducer and passes through a baffle reflecting surface below the sound velocity transducer, an echo signal is received by the receiving circuit and finally returned to the time measuring unit, the time difference of one round trip is calculated, and then the time difference is sent to the MCU main control unit to calculate the sound velocity value. The MCU controller is an operation center of the sounding system, is responsible for calculating values of sound velocity, temperature and pressure in real time, controls the pressure acquisition and time measurement units to work, sends real-time hydrological parameters to a serial port of the sounding part through the serial port, and sends the real-time hydrological parameters out of peripheral equipment through WIFI.
The pressure sensor is used for measuring the draft, completes the data sampling of the pressure sensor through the command of the MCU main control unit, and then transmits the data to the MCU main control unit to calculate the draft.
The hydrological parameter measuring module starts to work after being connected with a communication cable, and the depth measuring module starts to work after the whole device enters water. The hydrological parameter measurement module sends measured hydrological parameters such as sound velocity, temperature and pressure to the depth measurement module through the serial ports, and data information measured by the whole system of the depth measurement module is sent to peripheral equipment through wireless WIFI.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An intelligent depth sounding system is characterized by comprising a power module, a depth sounding module and a hydrological parameter measurement module, wherein the power module supplies power for the depth sounding module and the hydrological parameter measurement module, the depth sounding module comprises a DSP (digital signal processor), a depth sounding transceiver circuit and a depth sounding transducer, the DSP is in two-way communication connection with the depth sounding transceiver circuit, the depth sounding transceiver circuit is in two-way communication connection with the depth sounding transducer, and the DSP is also in two-way communication connection with an upper computer through a router; hydrological parameter measurement module includes MCU main control unit, time measuring unit, temperature sensor, pressure sensor, sound velocity measurement transceiver circuit and sound velocity measurement transducer, MCU main control unit and time measuring unit, pressure sensor both way communication are connected, temperature sensor, sound velocity measurement transceiver circuit and time measuring unit both way communication are connected, sound velocity measurement transceiver circuit still measures transducer both way communication with the sound velocity and is connected, MCU main control unit still passes through serial ports both way communication with the DSP treater and is connected.
2. The intelligent sounding system of claim 1, wherein the hydrographic parameter measurement module further comprises a storage module, and the storage module is in bidirectional communication with the MCU master control unit.
3. The intelligent sounding system of claim 1, wherein the transmitting circuit of the sounding transceiver circuit drives and amplifies the control signal from the DSP processor, loads the control signal on the sounding transducer, transmits the control signal, receives the underwater echo through the sounding transducer, converts the underwater echo through the sounding transceiver circuit, sequentially outputs the underwater echo to the DSP processor through the isolation transformer, the preamplifier, the TVG, the band-pass filter, the AGC, the post-amplifier, and the detector circuit, and generates the control gain of the AGC and the TVG through the DA of the DSP processor.
4. The intelligent sounding system of claim 1, wherein the MCU master control unit sends the control signal to the time measurement unit, and the time measurement unit starts to operate to generate a pulse control signal and sends the pulse control signal to the transmitting circuit of the sound velocity measurement transceiver circuit, and the pulse control signal is transmitted through the sound velocity measurement transducer, passes through the baffle reflecting surface under the sound velocity transducer, and is received by the receiving circuit, and finally returns to the time measurement unit to calculate the round-trip time difference, and then sends the time difference to the MCU master control unit to calculate the sound velocity value.
5. The intelligent sounding system of claim 1, wherein the pressure sensor is used for measuring draft, and data sampling of the pressure sensor is completed through commands of the MCU main control unit and then transmitted to the MCU main control unit to calculate draft.
6. The intelligent sounding system according to claim 1, wherein the temperature sensor is connected to a port of the time measurement unit to measure the underwater temperature, and the temperature measurement unit of the high-precision time measurement unit is utilized to measure the temperature with high precision and low power consumption based on the discharge time of the resistor to the capacitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911045724.7A CN110763207A (en) | 2019-10-30 | 2019-10-30 | Intelligent sounding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911045724.7A CN110763207A (en) | 2019-10-30 | 2019-10-30 | Intelligent sounding system |
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| CN110763207A true CN110763207A (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11367209B2 (en) * | 2020-10-23 | 2022-06-21 | X Development Llc | Visual detection of haloclines |
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| CN101813761A (en) * | 2009-09-10 | 2010-08-25 | 嘉兴中科声学科技有限公司 | Underwater acoustic beacon with multiple work modes |
| CN102749622A (en) * | 2012-07-03 | 2012-10-24 | 杭州边界电子技术有限公司 | Multiwave beam-based depth-sounding joint inversion method for sound velocity profile and seafloor topography |
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| US20220284612A1 (en) * | 2020-10-23 | 2022-09-08 | X Development Llc | Visual detection of haloclines |
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