A kind of side-scan sonar data acquisition processing system and method thereof
Technical field:
The present invention relates to a kind of undersea detection system, relate in particular to a kind of side-scan sonar data acquisition processing system and method thereof of utilizing side-scan sonar to carry out habitata.
Background technology:
In recent years, along with the high speed development of science and technology, the mankind deepen gradually to the understanding of the ocean of the covering earth total area 70%, and the ocean is more and more paid attention to by people because of its great potential and strategic critical role economically.So the important topic that the research and development and the environmental monitoring of Yu Haiyang become 21 century, but the ocean depth of water, mal-conditions such as the wave is high, marine high pressure, dark, low temperature have been brought very big difficulty to ocean research exploitation and marine environmental monitoring.For a long time, mainly carry out chemical analysis by spot sampling with in the laboratory monitors marine environment to ocean monitoring technologytechnologies exactly, but, because the complicacy of marine environment present situation requires the various parameters of ocean are carried out on-the-spot long-term, automatic, continuous monitoring analysis.In the various technology of marine environment continuous monitoring, side-scan sonar is a kind of novel not only can monitoring the seawater surface environment, and the automatic monitoring system that can monitor the deep-sea.
At present, side-scan sonar is divided into simulation side-scan sonar and digital side-scan sonar.The simulation side-scan sonar is that acoustical signal is converted to electric signal, so what transmit in cable is electric signal, in transport process, the interference that electric signal is subjected to environment easily changes, and causes image fault, and cable length is limited.The numeral side-scan sonar is then different, after receiving the reflected sound signal, converts thereof into electric signal amplification and process A/D conversion, convert the electrical signal to and be digital signal, what transmit in cable is digital signal, can not be subjected in the transport process to disturb to change, and resolution is very high.So in side-scan sonar, use digital side-scan sonar mostly.
At present, the kind of side-scan sonar is a lot of in the prior art, but the method for the acquisition system of corresponding various digital side-scan sonars mainly is to use DSP card (DIGITAL SIGNAL PROCESSOR, digital signal processor), yet the programming difficulty that realizes DSP is very big, be difficult to realize the integrated of acquisition system, and the price of DSP card is very expensive, this has brought a very big difficult problem with regard to carrying out ocean development for the Applied Digital side-scan sonar with monitoring, have the state of development of ocean research simultaneously now at China, we need be equipped with a large amount of senior research staff and a large amount of fund of cost is bought external product, and this has also caused difficulty for China's ocean research.
Summary of the invention:
In the side-scan sonar acquisition system, use the DSP card in the prior art in order to solve, and big, very difficult the integrated of acquisition system of realizing of the programming difficulty of bringing needs to drop into problems such as a large amount of funds and manpower.The present invention has used the conventional data signal card as data acquisition unit, and has developed the hardware interface of data signal card and side-scan sonar according to the side-scan sonar of surveying terminal and the computer system of manipulating terminal.
Concrete technical scheme of the present invention is as follows:
A kind of data acquisition processing system of side-scan sonar comprises side scanning sonar module, data signal card, computer system, cable;
Described side scanning sonar module is connected with computer system by data signal card;
Described side scanning sonar module is imported into data signal card with the data-signal that detects by cable, by data signal card the signal of being imported is carried out data acquisition, and the data-signal of gathering inputed to computer system, by computer system data-signal is operated.
In the application of reality, the side scanning sonar module described in the data acquisition processing system of side-scan sonar comprises control module, drags towfish and cable in water.
In the application of reality, the serial port COM2 of the computer system described in the side-scan sonar data acquisition processing system is connected with gps receiver, and another serial port COM1 is connected with control module in the described side scanning sonar module.
In the application of reality, the model of the side-scan sonar described in the side-scan sonar data acquisition processing system is DF-1000, and the model of data signal card is DIO6533.
In the application of reality, comprise DF-1000 numeral side scanning sonar module, DIO6533 data signal card, gps receiver, cable in the side-scan sonar data acquisition processing system and have the computer system of two RS232 serial ports; Wherein said DF-1000 numeral side scanning sonar module comprises: towfish, cable and control module;
Described towfish is connected with control module by cable; The PARALLEL SIDE SCAN port of described control module is connected by the port of cable with described DIO6533 data signal card, and the SERIAL COMMAND port of described control module is connected with the serial port COM1 of described computer system simultaneously; The serial port COM2 of described computer system is connected with described gps receiver;
Towfish in the described DF-1000 numeral side scanning sonar module is given control module with digital signal by cable transmission; Control module is imported into DIO6533 data signal card by cable with data-signal, simultaneously the status information of the towfish serial port COM1 by computer system is transferred to computer system, computer system also will be measured control informations such as width are transferred to DF-1000 by serial port COM1 control module; Described computer system is handled operation with the data-signal of described DIO6533 data signal card collection and the status signal of serial port COM1 and the GPS positioning signal of another serial port COM2: data processing, data are printed and data presentation.
Another technical scheme of the present invention is a kind of method of side-scan sonar data acquisition, it is characterized in that: described acquisition method is to be surveyed and detection data is transferred to described data signal card by described side scanning sonar module, by data signal card data are gathered, and data are carried out operational processes by described computer system;
Described side scanning sonar module model is DF-1000, and is made up of towfish, cable and control module; Described data signal card model is DIO6533; Described computer system has two RS232 serial ports;
Described acquisition method:
(1) at first converts the acoustical signal of surveying to digital signal, and detectable signal is transferred to described control module, detectable signal is carried out data processing by control module by cable by the towfish of described DF-1000 numeral side-scan sonar;
(2) described control module is given described DIO6533 data signal card from the PARALLEL SIDE SCAN port of control module by cable transmission with data-signal, by the DIO6533 data signal card data is gathered; Control module is given from the SERIAL COMMAND port of control module status signal the serial port COM1 of described computer system by cable transmission simultaneously;
(3) the serial port COM2 of described computer system accepts the positioning signal sent from described gps receiver; Described computer system is handled and is operated data-signal, command signal and positioning signal, the output result of detection.
The present invention has used the conventional data signal card and has replaced DSP card in the prior art, solved the interface problem of data signal card and side-scan sonar simultaneously, make the user can on computer platform, receive and handle the detection data that marine side-scan sonar transmits continuously, long-term, automatic, continuous monitoring is carried out in the ocean.Based on ISA, PCI and three kinds of slots of PCMCIA of data signal card DIO6533 correspondence, not only the desk-top computer acquisition system can be developed simultaneously, also the notebook acquisition system can be developed.The function that is provided based on data signal card DIO6533 can be developed the acquisition software of side-scan sonar fast on the various software platform again.DIO6533 data signal card low price, and be easy to realize the integrated of acquisition system, provide a kind of new system and method for further improving the seabed monitoring technology.
Description of drawings:
Fig. 1 sweeps the integrated synoptic diagram of sonar data acquisition processing system for digital side;
Fig. 2 is the connection diagram between the DIO6533 card port of DF-1000 numeral side-scan sonar and computing machine;
Wherein, the D4-D12 of DF-1000 end represents the sonar data signal wire, and GND is a ground wire; The direct impulse signal wire that IRQ begins for expression output new data; RD is a digital signal synchronizing pulse line.On behalf of digital signal, the DIOA0-B3 of DIO6533 card end receive line, and the ACK1 representative receives data and begins, and REQ1 represents that synchronizing signal receives line.
At embodiment each width of cloth accompanying drawing is described below.
Embodiment:
Fig. 1 sweeps the integrated synoptic diagram of sonar data acquisition processing system for digital side, and system comprises DF-1000 numeral side scanning sonar module, DIO6533 data signal card, gps receiver, cable and has the computer system of two RS232 serial ports; Wherein DF-1000 numeral side scanning sonar module comprises: towfish, cable and control module;
Described towfish is connected with control module by cable; The PARALLEL SIDE SCAN port of control module is connected by the port of cable with the DIO6533 data signal card, and the SERIAL COMMAND port of described control module is connected with the serial port COM1 of computer system by cable simultaneously; The serial port COM2 of described computer system is connected with gps receiver;
Towfish in the described DF-1000 numeral side scanning sonar module is given control module with raw digital signal by cable transmission, by control module raw digital signal is handled again; Control module is imported into DIO6533 data signal card by cable with data-signal afterwards, simultaneously the status information of the towfish serial port COM1 by computer system is transferred to computer system, computer system also will be measured control information such as width is transferred to DF-1000 numeral side-scan sonar by serial port COM1 control module; Described computer system is handled operation with the data-signal of described DIO6533 data signal card collection and the status signal of serial port COM1 and the GPS positioning signal of another serial port COM2: data processing, data are printed and data presentation.
The DIO6533 card of computer terminal has three types, and promptly AT-DIO-32HS, PCI-DIO-32HS and DAQCard-6533 distinguish corresponding ISA, PCI and PCMCIA slot, can select according to computer type.
Gps receiver is to use the gps receiver of energy outputting standard NMEA formatted data.And the connection between the computing machine equally also is the RS232 serial interface mode of standard.
Fig. 2 is the connection diagram between the DIO6533 card port of DF-1000 numeral side-scan sonar and computing machine.The D4-D12 of DF-1000 end represents the sonar data signal wire, and GND is a ground wire; The direct impulse signal wire that IRQ begins for expression output new data; RD is a digital signal synchronizing pulse line.On behalf of digital signal, the DIOA0-B3 of DIO6533 card end receive line, and the ACK1 representative receives data and begins, and REQ1 represents that synchronizing signal receives line.
The mainboard of DF-1000 numeral side-scan sonar control module has two kinds of data way of outputs-mutual and continuously, and this programme is selected continuation mode.The polarity of IRQ and RD is made as positive and negative respectively.The DF-1000 control module has externally positioned type DCU and internally-arranged type DCI two kinds, but the method to set up of wiring and configuration switch is basic identical.
What DF-1000 numeral side-scan sonar and microcomputer DIO6533 card port used among the present invention is parallel data grabbing card, with the continuous sonar data of exporting 4 passages (the left and right sides data of the left and right sides of 100kHz frequency and 500kHz frequency) of the speed of 96kHz, data resolution is 12 bits (so data line is 12).