CN109405933A - A kind of echo depth sounder remote online metering system and its metering method - Google Patents
A kind of echo depth sounder remote online metering system and its metering method Download PDFInfo
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Abstract
The invention discloses a kind of echo depth sounder remote online metering systems, including microprocessor and remote online server module；It further include that capturing for carrier signal of connecting with microprocessor is traced to the source module and for the human-computer interaction module of human-computer interaction with the carrier signal processing module that handles, the signal regeneration sending module for generating echo-signal, the delays time to control processing module for timing control, the communication transmission module for data transmission, the data memory module for data storage, the crystal oscillator for system accuracy verification；Microprocessor and remote online server module are communicated by communication transmission module；Delays time to control processing module is also connect with signal regeneration sending module, carrier signal processing module and human-computer interaction module respectively.Invention additionally discloses a kind of echo depth sounder remote online metering methods using above system.The present invention provides a kind of remote online measurement and examination method, it can be achieved that the remote online of echo depth sounder depth of water measuring parameter is examined and determine and calibration.
Description
Technical Field
The invention relates to the field of calibration and calibration of bathymetric survey equipment, in particular to a remote online metering system and a metering method of an echo sounder.
Background
The echo sounder is a measuring instrument commonly used in water transport engineering, can accurately measure water depth data in the process of ship navigation, and provides a powerful water depth measuring means for vast ocean workers.
At present, the conventional metrological verification method of the echo sounder comprises the following steps: and (3) placing the echo sounder into a verification water tank, vertically and downwards transmitting ultrasonic waves or horizontally transmitting ultrasonic waves by an energy transducer, receiving the reflected echo by the sounder, and comparing the indicating value of the sounder with a known standard value to calculate a measurement error. The method is limited by the size of the verification water tank, the measurement range is limited, the operation is complicated, and the verification cost is high. In addition, the user needs to send the instrument to be checked to the verification/calibration unit by express or freight, the verification/calibration unit issues a relevant certificate after verifying the instrument, and then mails the instrument and the certificate to the user, which causes great labor and time costs.
Disclosure of Invention
The invention provides a remote online metering system of an echo sounder and a metering method thereof, which can be operated simply and conveniently and realize remote measurement for solving the technical problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a remote online metering system of an echo sounder comprises a microprocessor and a remote online server module; the system also comprises a carrier signal processing module used for capturing and processing carrier signals, a signal regeneration sending module used for generating echo signals, a time delay control processing module used for time sequence control, a communication transmission module used for data transmission, a data storage module used for data storage, a crystal oscillator traceability module used for system precision verification and a human-computer interaction module used for human-computer interaction, which are all connected with the microprocessor; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the time delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the human-computer interaction module.
Further, the carrier signal processing module includes: a receiving judgment submodule for receiving the carrier signal and judging the validity of the signal; a frequency acquisition sub-module for acquiring the frequency of the echo signal; and an amplitude measurement submodule for acquiring the amplitude of the carrier signal.
Further, the signal regeneration transmitting module includes: the amplitude adjusting submodule is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; the echo control submodule is used for controlling the sending, stopping, returning and pulse width of an echo signal; and the depth adjusting submodule is used for filtering the echo signals and amplifying the echo signals.
Further, the delay control processing module comprises: the man-machine interaction time delay submodule is used for carrying out time sequence control on the man-machine interaction module; the carrier signal delay submodule is used for carrying out time sequence control on the carrier signal processing module; and the echo signal delay submodule is used for carrying out time sequence control on the signal regeneration sending module.
Further, the human-computer interaction module comprises: the liquid crystal display sub-module is used for displaying information; an input control submodule for inputting parameters; and the voice broadcasting submodule is used for broadcasting information.
Further, the remote online server module comprises a client module for receiving and sending test data, a central server module for setting remote parameters and storing data, and a video monitoring module for monitoring videos of an experimental site.
The invention also provides an echo sounder remote online metering method using the echo sounder remote online metering system, which comprises the following steps:
the method comprises the following steps: the echo sounder, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through the remote online server module, wherein the verification parameters comprise verification distance segment number N, measurement times M of each verification distance segment and standard verification depth value of the ith segmentWherein i is 1,2,3, …, N;
step two: starting sounding and sending a carrier signal by an echo sounder;
step three: the carrier signal processing module receives a carrier signal sent by the echo sounder, obtains frequency f and amplitude data of the carrier signal after processing, and outputs the frequency and amplitude data of the carrier signal to the microprocessor;
step four: the microprocessor calculates the analog transmission time t of the ith section of verification distance according to the frequency f of the carrier signali；
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the simulated transmission time tiTo a delay control processing module; time delay control processing module elapsed time tiThen sending an echo starting signal to a signal regeneration sending module; after receiving the echo starting signal, the signal regeneration sending module generates a simulation echo signal with the frequency f;
step six: the echo sounder receives the analog echo signal from the signal regeneration sending module, calculates the analog measured depth value and sends the analog measured depth value to the microprocessor; the microprocessor sends the received analog measured depth value to the remote online server module and the data storage module for storage;
step seven: the remote online server module adds 1 to the measurement frequency accumulation of the verification distance of the ith section, judges whether the measurement frequency of the verification distance of the ith section is less than M or not, and returns to the second step if the measurement frequency of the verification distance of the ith section is less than M;
step eight: changing the serial number i of the verification distance segments, and then repeating the steps from the second step to the seventh step until the verification measurement of all verification distance segment numbers is completed;
step nine: a remote online server module for averaging the simulated measured depth values of M measurements of the verification distance of the i-th segmentAnd will beAnd the set standard detection depth valueComparing, and judging whether the standard of metrological verification is met; if the electronic certificate meets the metrological verification standard, generating an electronic verification certificate; if the verification result does not meet the metrological verification standard, a verification result notice is issued.
Further, in the fourth step, the analog transmission time t of the verification distance in the ith sectioniAnd calculating according to the formula 1 to obtain:
in equation 1:
the standard detection depth value of the ith section;
f, is the frequency of the effective carrier signal;
tiand the simulated transmission time of the verification distance in the ith section is used.
Further, in the fifth step, the signal regeneration sending module performs multi-path amplitude voltage regulation, pulse width control and filtering processing on the generated analog echo signal.
Further, in the step one, the measuring times M of each section of the verification distance is more than or equal to 5.
The invention has the advantages and positive effects that: the invention simulates echo signals with corresponding frequencies by identifying and receiving carrier signals, judges the sending time of the echo signals, judges the calibration distance of the current echo depth finder, uploads data to a client of an upper computer through wireless transmission of a WiFi (wireless fidelity) sub-module, carries out real-time test monitoring through videos, finally transmits test data and real-time monitoring videos to a remote center server, and generates a verification certificate or a verification result notice according to verification results, thereby solving the problems of time and cost caused by the requirement on a detection water tank and remote transmission and detection in the verification process of the echo depth finder.
The invention can carry out depth detection in any measuring range according to the needs of users, realizes the automatic detection function of continuous multiple water level depths, integrates the wireless network communication technology, provides a convenient and stable communication means for the remote control and detection calibration of the echo sounder, and realizes the remote real-time control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic circuit diagram of one of the carrier signal processing modules according to the present invention;
FIG. 3 is a schematic circuit diagram of one of the signal regeneration and transmission modules according to the present invention;
FIG. 4 is a schematic circuit diagram of one of the delay control processing modules according to the present invention;
FIG. 5 is a schematic circuit diagram of one RS485 sub-module of the communication transmission module according to the present invention;
FIG. 6 is a schematic circuit diagram of one of the WiFi sub-modules of the communication transmission module of the present invention;
FIG. 7 is a schematic circuit diagram of one of the liquid crystal display sub-modules of the human-computer interaction module of the present invention;
FIG. 8 is a schematic circuit diagram of one input control sub-module of the human-computer interaction module of the present invention;
fig. 9 is a schematic circuit diagram of one of the voice broadcast sub-modules of the human-computer interaction module in the present invention;
FIG. 10 is a schematic circuit diagram of one of the data storage modules according to the present invention;
FIG. 11 is a schematic circuit diagram of one of the crystal oscillator tracing modules according to the present invention;
FIG. 12 is a schematic diagram of one of the microprocessor circuits of the present invention;
fig. 13 is a flow chart of the operation of the present invention.
In the figure: U1B, a first stage level shifter integrated circuit; U1C, second stage level shifter integrated circuit; u2, signal generator integrated circuit; u3, analog switch integrated circuit; u4, RS485 transceiver integrated circuit; u5, WiFi integrated circuit; u6, liquid crystal display integrated circuit; u7, key switch integrated circuit; u8, voice module integrated circuit; u9, memory integrated circuit; u10, crystal oscillator integrated circuit; u11, CPU IC; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; LED1, LED indicator light.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are enumerated in conjunction with the accompanying drawings, and the following detailed description is given:
in the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1 to 13, a remote online metering system of an echo sounder includes a microprocessor and a remote online server module; the system also comprises a carrier signal processing module used for capturing and processing carrier signals, a signal regeneration sending module used for generating echo signals, a time delay control processing module used for time sequence control, a communication transmission module used for data transmission, a data storage module used for data storage, a crystal oscillator traceability module used for system precision verification and a human-computer interaction module used for human-computer interaction, which are all connected with the microprocessor; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the time delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the human-computer interaction module. The echo sounder is connected with the communication transmission module and is communicated with the microprocessor and the remote online server module through the communication transmission module.
The microprocessor can adopt an STM32 series microprocessor, the STM32 series microprocessor is respectively connected with a carrier signal processing module, a signal regeneration sending module, a delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, and the STM32 series microprocessor is used for reading and executing instructions among the modules and exchanging information among the modules;
the carrier signal processing module receives and judges whether the echo sounder sends an effective carrier signal or not, real-time capture and measurement of the frequency and the amplitude of the carrier signal are carried out, and the measurement result is sent to an STM32 series microprocessor;
the signal regeneration sending module acquires information such as carrier signal frequency and amplitude received by an STM32 series microprocessor, simulates echo signals with the same waveform, and sends the echo signals to an STM32 series microprocessor for returning the echo signals to an echo sounder;
the carrier signal processing module acquires the frequency and amplitude of a carrier signal sent by the echo sounder, processes the frequency and amplitude of the acquired carrier signal and inputs the processed frequency and amplitude of the carrier signal to the microprocessor, and the microprocessor sends the frequency and amplitude of the carrier signal to the signal regeneration sending module, so that the signal regeneration sending module receives the frequency, amplitude and other information of the carrier signal sent by the microprocessors of the series such as STM32 and the like, simulates an echo signal with the same waveform, sends the echo signal to the microprocessors of the series such as STM32 and the like, and is used for returning the echo signal to the echo sounder;
the man-machine interaction module is used for displaying a man-machine page, controlling keys and broadcasting voice; and the remote online server module performs remote data setting and online data uploading functions.
The delay control processing module regularly refreshes a liquid crystal display sub-module, an input control sub-module and a voice broadcasting sub-module in the man-machine interaction module, searches the zone bit of the carrier signal in the carrier signal processing module and realizes us-level time management and analog switch high-level time control of the echo signal of the signal regeneration sending module;
the communication transmission module is connected with the remote online server module through a WiFi (wireless fidelity) sub-module, realizes information interaction with the echo depth sounder through an RS485 sub-module, and transmits signal information of the STM32 series microprocessor to an upper computer connected with the remote online server module through the WiFi sub-module;
the data storage module adopts a W25Q16 memory, can store a 2Mbits memory, and is used for storing test data in the STM32 series microprocessor, so that later-stage data sorting and analysis are facilitated;
the crystal oscillator tracing module receives a square wave signal in the STM32 series microprocessor timer and is used for an external device to carry out accuracy verification on a remote online metering system of the echo depth sounder;
furthermore, the system also comprises a power management module which is connected with the microprocessor and is used for providing system working power. The power management module can provide working voltage power required by each module, and can perform overvoltage, undervoltage and overcurrent protection to realize stable operation of the whole set of device;
further, the carrier signal processing module may include: a receiving judgment submodule for receiving the carrier signal and judging the validity of the signal; a frequency acquisition sub-module for acquiring the frequency of the echo signal; and an amplitude measurement submodule for acquiring the amplitude of the carrier signal. The receiving and judging submodule can be used for receiving a carrier signal sent by the echo sounder and judging the validity of the signal, an LED indicator light LED1 can be additionally arranged, the receiving and judging submodule outputs the signal to an LED indicator light LED1, and the flashing speed of the LED indicator light LED1 is correspondingly adjusted and changed according to different signal frequencies; the frequency capturing submodule can be used for capturing the frequency of the echo signal, and the frequency value is output to the microprocessor after the frequency capturing is successful; the amplitude measuring submodule can be used for collecting the amplitude of the carrier signal, and the amplitude is output to the microprocessor after the signal amplitude is successfully collected.
Further, the signal regeneration transmitting module may include: the amplitude adjusting submodule is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; the echo control submodule is used for controlling the sending, stopping, returning and pulse width of an echo signal; and the depth adjusting submodule is used for filtering the echo signals and amplifying the echo signals. The amplitude adjusting submodule can be used for carrying out multi-path voltage adjustment on the amplitude of the echo signal, so that the voltage control of the echo signal is facilitated; the echo control submodule can be used for sending and stopping echo signals and controlling the return time and the pulse width of the echo signals; the depth adjustment submodule can be used for filtering processing and signal amplification of echo signals, and is convenient for reducing circuit signal interference.
The amplitude adjustment submodule can adopt a 74HC138 decoder to realize multi-path voltage adjustment, the input end of the decoder is controlled by an I/O port of an STM32 processor, 8 states can be adjusted, and the voltage value of each path of state is gradually reduced; the echo control submodule adopts a CH443 analog switch to send and stop an echo signal, when the echo signal does not need to be sent out, an STM32 processor places a CH443 level conversion pin in a low level state, the CH443 analog switch is in an NC bit, when the timer times out, the STM32 processor converts the CH443 level conversion pin from a low level to a high level, places the CH443 analog switch in an NO bit, and returns the echo signal to the echo sounder through a signal receiving end; the depth adjustment submodule can achieve filtering processing and signal amplification effects of echo signals by adopting an AD9631 operational amplifier, clutter influence of the echo signals is suppressed by building a resistor and a capacitor circuit, and proper amplitude adjustment is performed on the echo signals by building a signal amplification circuit, so that echo signal distortion caused by clutter is solved.
Further, the delay control processing module may include: the man-machine interaction time delay submodule is used for carrying out time sequence control on the man-machine interaction module; the carrier signal delay submodule is used for carrying out time sequence control on the carrier signal processing module; and the echo signal delay submodule is used for carrying out time sequence control on the signal regeneration sending module. The man-machine interaction time delay submodule can be used for timing data updating of an LCD screen of the liquid crystal display submodule, timing refreshing of the input control submodule and timing reminding functions in the process of voice broadcasting the submodule, and can provide accurate time refreshing for the man-machine interaction module through timing control; the carrier signal delay submodule can search for a carrier ending zone bit and judge whether a useful carrier signal is received, and if the useful carrier signal is received, the carrier signal processing module captures the signal frequency and amplitude of the useful carrier signal; the echo signal delay submodule can realize the time management of the us level of the echo signal and the high-level time control of the CH443 analog switch, accurately record the receiving time of the carrier signal and the sending time of the echo signal, control the CH443 analog switch to send the echo signal to the echo depth sounder, and process a signal regeneration sending module after the echo signal delay submodule is finished.
Further, the communication transmission module can comprise an RS485 sub-module and a WiFi sub-module. The RS485 sub-module can receive the carrier signal of the echo depth finder and return the echo signal; the WiFi sub-module can complete connection to the upper computer by configuring IP and setting TCP _ CLIENT.
Further, the human-computer interaction module may include: the liquid crystal display sub-module is used for displaying information; an input control submodule for inputting parameters; and the voice broadcasting submodule is used for broadcasting information. The liquid crystal display sub-module can be used for comparing the test depth with the verification depth and checking related data information; the input control submodule can select and set parameters of a display screen by using a multi-pin key switch; the voice broadcast submodule can achieve the functions of current parameter value broadcast and power supply low-voltage alarm.
Further, the data storage module may include a W25Q16 chip. The data storage module can comprise a memory integrated circuit U9 and peripheral circuits thereof, wherein the memory integrated circuit U9 can use a W25Q16 chip, VCC and WPS pins of the memory integrated circuit U9 are connected with the power management module, CS, SO, SCLK and SI pins of the memory integrated circuit U9 are connected with the STM32 series microprocessor, and GND pin of the memory integrated circuit U9 is grounded.
Further, the crystal oscillator tracing module may include 5032 an active crystal oscillator chip. The crystal oscillator source tracing module can adopt a crystal oscillator integrated circuit U10 and peripheral circuits thereof, wherein a crystal oscillator integrated circuit U10 can select a 5032 active crystal oscillator chip, a VCC pin of the crystal oscillator integrated circuit U10 is connected with a first resistor R1 pin, the other end pin of the first resistor R1 is connected with the power management module, an Out pin of the crystal oscillator integrated circuit U10 is connected with the STM32 series microprocessor, a GND pin of the crystal oscillator integrated circuit U10 is grounded, and an NC/OE pin of the crystal oscillator integrated circuit U10 is suspended.
Further, the remote online server module may include a client module for implementing reception and transmission of test data, a central server module for setting remote parameters and data storage, and a video monitoring module for video monitoring of an experimental site. The client module can be used for receiving and sending test data; the central server module can be used for setting remote parameters and storing data; the video monitoring module can be used for video monitoring of an experimental site.
The present invention further provides an embodiment of a remote online measurement method for an echo sounder, which uses the remote online measurement system for an echo sounder, referring to fig. 13, including the following steps:
the method comprises the following steps: the echo sounder, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through the remote online server module, wherein the verification parameters comprise verification distance segment number N, measurement times M of each verification distance segment and standard verification depth value of the ith segmentWherein i is 1,2,3, …, N; in order to ensure the accuracy of the test, the value M is more than or equal to 5;
step two: starting sounding and sending a carrier signal by an echo sounder;
step three: the carrier signal processing module receives a carrier signal sent by the echo sounder, obtains frequency f and amplitude data of the carrier signal after processing, and outputs the frequency and amplitude data of the carrier signal to the microprocessor;
step four: the microprocessor calculates the analog transmission time t of the ith section of verification distance according to the frequency f of the carrier signali(ii) a Analog transmission time tiSimulating the time for transmitting and receiving the echo signal by the echo depth finder under the condition of the length of the verification distance of the i section;
wherein, the simulation transmission time t of the verification distance of the ith sectioniIt can be calculated according to equation 1:
in equation 1:
the standard detection depth value of the ith section;
f, is the frequency of the effective carrier signal;
tiand the simulated transmission time of the verification distance in the ith section is used.
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the simulated transmission time tiTo a delay control processing module; time delay control processing module elapsed time tiThen sending an echo starting signal to a signal regeneration sending module; after receiving the echo starting signal, the signal regeneration sending module generates a simulation echo signal with the frequency f; the signal regeneration sending module can further process the generated analog echo signal by multi-path amplitude voltage regulation, pulse width control, filtering processing and the like;
step six: the echo sounder receives the analog echo signal from the signal regeneration sending module, calculates the analog measured depth value and sends the analog measured depth value to the microprocessor; the microprocessor sends the received analog measured depth value to the remote online server module and the data storage module for storage;
step seven: the remote online server module adds 1 to the measurement frequency accumulation of the verification distance of the ith section, judges whether the measurement frequency of the verification distance of the ith section is less than M or not, and returns to the second step if the measurement frequency of the verification distance of the ith section is less than M;
step eight: changing the serial number i of the verification distance segments, and repeating the steps from the second step to the seventh step until the verification measurement of all verification distance segment numbers is completed; the remote online server module can send out an instruction to change the serial number i of the verification distance segment, meanwhile, a counter for verifying the number of the distance segments is arranged to add 1 to the number of the tested verification distance segments in an accumulated mode, when verification measurement of all verification distance segments is completed, the counting value of the counter for verifying the number of the distance segments is N, and verification measurement of N verification distance segments is completed. Judging whether the measured verification distance section value is smaller than N, if so, repeating the steps from the second step to the seventh step, and if not, completing the verification measurement of all the verification distance sections; if the distance is equal to N, finishing the verification measurement of all verification distance sections, and implementing the ninth step;
the sequence can be changed from the 1 st section to the 2 nd section, the 3 rd section and the Nth section; the sequence can also be changed from the Nth section of the detection distance to the Nth-1 section of the detection distance, the Nth-2 section of the detection distance, and the detection distance to the 1 st section of the detection distance.
Step nine: a remote online server module for sequentially averaging the simulated measured depth values of the M measurements of the verification distance in the ith segment (i ═ 1,2,3, …, N)And will beAnd the set standard detection depth valueComparing, and judging whether the standard of metrological verification is met; if the electronic certificate meets the metrological verification standard, generating an electronic verification certificate; if it is not in agreementAnd (4) issuing a verification result notice if the total quantity verification standard is met.
The structure and operation of the present invention will be further described with reference to one of the preferred embodiments of the present invention and the accompanying drawings:
referring to fig. 1, which is a schematic structural diagram of the present invention, the present invention includes a microprocessor and a remote online server module; the system also comprises a power management module, a carrier signal processing module, a signal regeneration sending module, a delay control processing module, a communication transmission module, a data storage module, a crystal oscillator source tracing module, a man-machine interaction module, a remote online server module and other components which are all connected with the microprocessor. Wherein,
the microprocessor can adopt an STM32 series microprocessor, and the STM32 series microprocessor is used for reading and executing instructions among the modules and exchanging information with the modules;
the power supply management module is used for providing voltage required by each module, and is provided with overvoltage and undervoltage protection and overcurrent protection, so that stable operation of the STM32 series microprocessor is realized; providing power supplies containing various voltages such as 220V, 24V, 12V, 5V, 3.3V and the like so as to supply power for modules which need power supplies in a system such as a microprocessor, a carrier signal processing module, a signal regeneration processing module, a man-machine interaction module, a communication transmission module and the like; in the overvoltage and undervoltage protection, an STM32 processor performs ADC sampling on the supplied voltage, and calculates and compares the current voltage value with a reference value to judge whether the voltage is normal at present; the PTC thermistor is in a high-resistance state when the current in the circuit exceeds a rated current value, so that the circuit reaches a relative 'cut-off' state.
The carrier signal processing module receives and judges whether the echo sounder sends an effective carrier signal or not, real-time capture and measurement of the frequency and the amplitude of the carrier signal are carried out, and the measurement result is sent to an STM32 series microprocessor;
the signal regeneration sending module acquires information such as carrier signal frequency, amplitude and the like of an STM32 series microprocessor, simulates echo signals with the same waveform, and sends the echo signals to an STM32 series microprocessor for returning the echo signals to an echo depth sounder;
the delay control processing module regularly refreshes a man-machine interaction delay submodule, an input control submodule and a voice broadcasting submodule in the man-machine interaction module, searches for a flag bit in a carrier signal delay submodule and realizes us-level time management and analog switch high-level time control of echo signals of the echo signal delay submodule;
the communication transmission module realizes information interaction with the echo sounder through an RS485 submodule, and transmits signal information of the STM32 series microprocessor to an upper computer through a WiFi submodule;
the data storage module can adopt a W25Q16 memory and can store a 2Mbits memory, and is used for storing test data in the STM32 series microprocessors, so that later-stage data sorting and analysis are facilitated;
the crystal oscillator tracing module receives a square wave signal in the STM32 series microprocessor timer and is used for an external device to carry out accuracy verification on a remote online metering system of the echo depth sounder;
the man-machine interaction module is used for displaying a man-machine page, controlling keys and broadcasting voice; and the remote online server module performs remote data setting and online data uploading functions.
Fig. 2 is a schematic circuit diagram of one of the carrier signal processing modules. The carrier signal processing module may include: a receiving judgment submodule for receiving the carrier signal and judging the validity of the signal; a frequency acquisition sub-module for acquiring the frequency of the echo signal; and an amplitude measurement submodule for acquiring the amplitude of the carrier signal. After the signal is input into the carrier signal processing module, the signal firstly enters into the receiving judgment sub-module and then is input into the frequency capturing sub-module and the amplitude measuring sub-module for processing. The receiving and judging submodule is used for receiving a carrier signal sent by the echo sounder, judging the validity of the signal, outputting the signal to the LED indicating lamp for indicating, and correspondingly adjusting and changing the flashing speed of the LED indicating lamp according to different signal frequencies; the frequency capturing submodule is used for capturing the frequency of the echo signal, and the frequency value is timely input to the microprocessor after the frequency capturing is successful; the amplitude measuring submodule is used for collecting the amplitude of the carrier signal, and the amplitude is input into the microprocessor after the signal amplitude is successfully collected. The carrier signal processing module can comprise a 2-level conversion circuit formed by serially connecting a first-level converter integrated circuit U1B and a second-level converter integrated circuit U1C and peripheral circuits thereof, wherein the first-level converter integrated circuit U1B and the second-level converter integrated circuit U1C can both adopt MC74HC4050 level converter chips, 4 pins of the first-level converter integrated circuit U1B are connected with 7 pins of the second-level converter integrated circuit U1C, 5 pins of the first-level converter integrated circuit U1B and 6 pins of the second-level converter integrated circuit U1C are respectively connected with a seventh resistor R7, an STM32 series microprocessor and an LED indicator light LED1, and the sixth resistor R6 is connected with an echo depth finder and the seventh resistor R7.
FIG. 3 is a schematic circuit diagram of a signal regeneration transmitting module according to the present invention; the signal regeneration processing module may include an amplitude adjustment sub-module, an echo control sub-module, and a depth adjustment sub-module. The amplitude adjustment submodule can adopt a 74HC138 decoder to realize multi-path voltage adjustment, the input end of the decoder is controlled by an I/O port of an STM32 processor, 8 states can be adjusted, and the voltage value of each path of state is gradually reduced; the echo control submodule adopts a CH443 analog switch to send and stop an echo signal, when the echo signal does not need to be sent out, an STM32 processor places a CH443 level conversion pin in a low level state, the CH443 analog switch is in an NC bit, when the timer times out, the STM32 processor converts the CH443 level conversion pin from a low level to a high level, places the CH443 analog switch in a NO bit, and returns the echo signal to the echo sounder through a signal receiving end; the depth adjustment submodule can achieve filtering processing and signal amplification effects of echo signals by adopting an AD9631 operational amplifier, clutter influence of the echo signals is suppressed by building a resistor and a capacitor circuit, and proper amplitude adjustment is performed on the echo signals by building a signal amplification circuit, so that echo signal distortion caused by clutter is solved. The signal regeneration sending module adopts a signal generator integrated circuit U2 and peripheral circuits thereof, wherein the signal generator integrated circuit U2 can select an AD9954 signal generator, pins 19 and 20 of the signal generator integrated circuit U2 are connected with the power management module, pins 2, 12, 14, 16 and 18 of the signal generator integrated circuit U2 are connected with the STM32 series microprocessor, pins 1 and 10 of the signal generator integrated circuit U2 are grounded, and other pins of the signal generator integrated circuit U2 are suspended.
FIG. 4 is a schematic circuit diagram of one of the delay control processing modules according to the present invention; and the delay control processing module comprises a man-machine interaction delay submodule, a carrier signal delay submodule and an echo signal delay submodule. The man-machine interaction delay submodule is used for timing data updating of an LCD (liquid crystal display) submodule screen, timing refreshing of an input control submodule and a timing reminding function in the process of voice broadcasting the submodule; the carrier signal delay submodule realizes carrier end zone bit searching, records the current end zone bit state in timer interruption, continuously refreshes the current end zone bit state in the process, judges whether all carrier signals are received, and starts a program to carry out signal regeneration sending judgment after the carrier signals are received; the echo signal delay submodule realizes time management of the echo signal us level and high level time control of a CH443 analog switch, the time required for sending by the echo signal delay submodule is obtained through calculation, the time is recorded into a timer, when a counter in the timer is consistent with the echo delay sending time, high level time control judgment is carried out, when the CH443 is positioned at a NO position from an NC position, the timer interrupts and continuously records the time state that a CH443 level conversion pin is positioned at a high position, and when the time of the counter is equal to the carrier signal input time, the CH443 level conversion pin is positioned at a low position, and the sending of the echo signal is finished. The delay control module comprises an analog switch integrated circuit U3 and peripheral circuits thereof, wherein the analog switch integrated circuit U3 can select a CH443 analog switch, pins VDD and VL of the analog switch integrated circuit U3 are connected with the power management module, a pin COM of the analog switch integrated circuit U3 is connected with a signal regeneration sending module, pins VEE and GND of the analog switch integrated circuit U3 are grounded, and pins NO and IN of the analog switch integrated circuit U3 are connected with the STM32 series microprocessor.
The communication transmission module comprises an RS485 module and a WiFi module. The communication transmission module has two working modes: wired transmission and wireless transmission, wherein the wired transmission mode accords with a communication protocol corresponding to the STM32 processor configuration and the instrument to be detected, the configuration is completed and then the instrument to be detected is connected through an RS485 submodule serial port, and the wired transmission of data can be realized after the instrument is opened; the wireless transmission can carry out wireless interaction through the WiFi sub-module, and the connection of the upper bits is completed by configuring IP and setting TCP _ CLIENT.
FIG. 5 is a schematic circuit diagram of one RS485 sub-module of the communication transmission module according to the present invention; the RS485 module comprises an RS485 transceiver integrated circuit U4 and peripheral circuits thereof, the RS485 transceiver integrated circuit U4 can adopt an MAX487 module, a Vcc pin of the RS485 transceiver integrated circuit U4 is connected with the power management module, and RO, RO and Vcc of the RS485 transceiver integrated circuit U4,DE. A pin D1 is connected with the STM32 series microprocessor, a pin A, B of the RS485 transceiver integrated circuit U4 is suspended, and a pin GND of the RS485 transceiver integrated circuit U4 is grounded;
FIG. 6 is a schematic circuit diagram of one of the WiFi sub-modules of the communication transmission module of the present invention; the WiFi module includes a WiFi integrated circuit U5 and its peripheral circuits. An ESP8266-01WiFi module can be selected as the WiFi integrated circuit U5, pins VCC, G16 and C _ D, G02 of the WiFi integrated circuit U5 are connected with the power management module, pins UT, UR and G00 of the WiFi integrated circuit U5 are connected with the STM32 series microprocessor, and a GND pin of the WiFi integrated circuit U5 is grounded.
The man-machine interaction module comprises a liquid crystal display submodule, an input control submodule and a voice broadcasting submodule. The liquid crystal display sub-module can select a 128 × 64LCD liquid crystal screen and is used for comparing the test depth with the verification depth and checking related data information; the input control submodule can select a 6-pin key switch or a 4-pin light touch switch to select and set display screen parameters; the voice broadcast submodule realizes the functions of current parameter value broadcast and power supply low-voltage alarm.
FIG. 7 is a schematic circuit diagram of one of the liquid crystal display sub-modules of the human-computer interaction module of the present invention; the liquid crystal display submodule comprises a liquid crystal display integrated circuit U6, a liquid crystal display integrated circuit U6 can select a 256X 64OLED display screen, a VCC pin of the liquid crystal display integrated circuit U6 is connected with the power management module, an EN pin of the liquid crystal display integrated circuit U6 is suspended, a GND pin and a CS pin of the liquid crystal display integrated circuit U6 are grounded, and RES, D/C, SCLK and SDIN pins of the liquid crystal display integrated circuit U6 are connected with the STM32 series microprocessor.
FIG. 8 is a schematic circuit diagram of one input control sub-module of the human-computer interaction module of the present invention; an input control submodule key switch integrated circuit U7 can select a 4-pin light-touch switch, a pin 1, a pin 2, a pin 3 and a pin 4 of a key switch integrated circuit U7 are connected with an STM32 series microprocessor, a pin 5 of the key switch integrated circuit U7 is grounded, and pins of a second resistor R2, a third resistor R3, a fourth resistor R4 and a fifth resistor R5 are respectively connected with the STM32 series microprocessor and the power management module.
Fig. 9 is a schematic circuit diagram of one of the voice broadcast sub-modules of the human-computer interaction module in the present invention; the voice broadcast submodule comprises a voice module integrated circuit U8, a SYN6288 voice module can be selected by the voice module integrated circuit U8, the pin 1 of the voice module integrated circuit U8 is connected with the power supply management module, the pin 2, the pin 3 and the pin 5 of the voice module integrated circuit U8 are connected with the STM32 series microprocessor, and the pin 4 of the voice module integrated circuit U8 is grounded.
FIG. 10 is a schematic circuit diagram of one of the data storage modules according to the present invention; the data storage module comprises a memory integrated circuit U9 and peripheral circuits thereof, wherein the memory integrated circuit U9 can select a W25Q16 chip. VCC and WPS pins of the memory integrated circuit U9 are connected with the power management module, CS, SO, SCLK and SI pins of the memory integrated circuit U9 are connected with the STM32 series microprocessor, and a GND pin of the memory integrated circuit U9 is grounded.
FIG. 11 is a schematic circuit diagram of one of the crystal oscillator tracing modules according to the present invention; the crystal oscillator tracing module comprises a crystal oscillator integrated circuit U10 and a peripheral circuit thereof, wherein the crystal oscillator integrated circuit U10 can be selected from 5032 active crystal oscillator chips. The VCC pin of the crystal oscillator integrated circuit U10 is connected with a first resistor R1 pin, the other end pin of the first resistor R1 is connected with the power management module, the Out pin of the crystal oscillator integrated circuit U10 is connected with the STM32 series microprocessor, the GND pin of the crystal oscillator integrated circuit U10 is grounded, and the NC/OE pin of the crystal oscillator integrated circuit U10 is suspended.
FIG. 12 is a schematic diagram of a microprocessor circuit according to the present invention, wherein the STM32 series microprocessor includes a CPU IC U11 and its peripheral circuits, the CPU IC U11 can be STM32FRBT6 microprocessor, the power management module is connected to the 3.3V and 5V of the CPU IC U11, the PA0 pin of the CPU IC U11 is connected to the G00 pin of the voice module IC U8, the PA1 pin of the CPU IC U11 is connected to the 2 and 3 pins of the RS485 transceiver IC U4, the PA2 pin of the CPU IC U11 is connected to the 1 pin of the RS485 transceiver IC U4, the PA3 pin of the CPU IC U11 is connected to the 4 pin of the RS485 transceiver IC U4, the PA4 pin of the CPU IC U11 is connected to the 6 pin of the IC U1, the PA5 of the CPU IC U11 is connected to the memory U9 pin of the memory U9, the PA6 pin of the CPU integrated circuit U11 is connected with the 5 pin of the memory integrated circuit U9, the PA7 pin of the CPU integrated circuit U11 is connected with the 2 pin of the memory integrated circuit U9, the PA8 pin of the CPU integrated circuit U11 is connected with the 1 pin of the memory integrated circuit U9, the PA9 pin of the CPU integrated circuit U11 is connected with the UR pin of the voice module integrated circuit U8, the PA10 pin of the CPU integrated circuit U11 is connected with the UT pin of the voice module integrated circuit U8, the PA11 pin of the CPU integrated circuit U11 is connected with the 18 pin of the signal generator integrated circuit U2, the PA12 pin of the CPU integrated circuit U11 is connected with the 16 pin of the signal generator integrated circuit U2, the PA13 pin of the CPU integrated circuit U11 is connected with the 14 pin of the signal generator integrated circuit U2, the PA14 pin of the CPU integrated circuit U11 is connected with the integrated circuit U2 pin of the signal generator integrated circuit U2, a pin PA15 of the CPU integrated circuit U11 is connected with a pin 6 of the analog switch integrated circuit U3, a pin PB8 of the CPU integrated circuit U11 is connected with a pin 5 of the WiFi integrated circuit U5, a pin PB9 of the CPU integrated circuit U11 is connected with a pin 2 of the WiFi integrated circuit U5, a pin PB10 of the CPU integrated circuit U11 is connected with a pin 3 of the WiFi integrated circuit U5, a pin PC0 of the CPU integrated circuit U11 is connected with a pin 1 of the analog switch integrated circuit U3, a pin PC1 of the CPU integrated circuit U11 is connected with a pin SDIN of the liquid crystal display integrated circuit U6, a pin PC11 of the CPU integrated circuit U11 is connected with a pin SCL K of the liquid crystal display integrated circuit U11, a pin PC11 of the CPU integrated circuit U11 is connected with a pin D/C of the liquid crystal display integrated circuit U11, and a pin RES of the PC integrated circuit U11 is connected with a pin RES of the liquid crystal display integrated circuit U11, the pin PC7 of the CPU integrated circuit U11 is connected with the pin 2 of the integrated circuit U2, the pin PC8 of the CPU integrated circuit U11 is connected with the pin 4 of the key switch integrated circuit U7, the pin PC9 of the CPU integrated circuit U11 is connected with the pin 3 of the key switch integrated circuit U7, the pin PC10 of the CPU integrated circuit U11 is connected with the pin 2 of the key switch integrated circuit U7, the pin PC11 of the CPU integrated circuit U11 is connected with the pin 1 of the key switch integrated circuit U7, the pin PC12 of the CPU integrated circuit U11 is connected with the pin 2 of the integrated circuit U01, and the pin GND and the pin PC6 of the CPU integrated circuit U11 are grounded.
The remote online server module comprises a client module, a central server module and a video monitoring module. The client module is used for receiving and sending test data; the central server module is used for setting remote parameters and storing data; the video monitoring module is used for monitoring videos of an experimental site.
During testing, the signal output port of the echo depth finder is connected with the interface of the remote online metering system of the echo depth finder, the data communication port of the echo depth finder is connected with the data communication interface of the remote online metering system of the echo depth finder through the RS485 sub-module, and the network cable of the camera is connected with the interface of the router. Then, local configuration is carried out on the parameters of the echo sounder, the remote online metering system of the echo sounder and the upper computer, and the position to be verified is configured on the remote online metering system of the echo sounderAnd after configuration of information such as verification times, testers, test time and the like is completed, whether a signal is sent out of the echo depth finder is monitored in real time, and after an effective signal is sent out, the frequency f and the amplitude v of the carrier signal are captured. If the captured signal is a carrier signal, the signal parameter is uploaded to a microprocessor, the signal is processed again, an echo signal is simulated and returned to an echo sounder, and the echo sounder calculates a test depth value sij(i ═ 1,2,3, …, N, j ═ 1,2,3, …, M). And the check depth valueTest depth value s of echo sounderijAnd uploading the video monitoring image to a client, sending the obtained information to a remote central server by the client, displaying the information of the verified equipment by the central server after N different depth value measurements are completed and each depth value is measured for M times, calculating an error value, and numbering the verified data, the video recording, the certificate, the metering mode, the transportation unit, the equipment name and the equipment designAnd uploading information such as the serial number, the manufacturing unit, the factory unit and the like to a database for storage. And after the verification is finished, issuing a certificate/description according to the verification result, and sending the certificate/description to the user in a mailing mode. In the measuring process, the delay control processing module searches for a carrier signal ending zone bit, and realizes accurate timing of the us level of an echo signal and judgment of returning the echo signal to an echo sounder; the communication transmission module realizes the acquisition of the depth value of the echo sounder and the interaction of data and information of a remote upper computer; and the man-machine interaction module realizes the comparison of the test depth and the verification depth and the parameter viewing function and is used for user display screen parameter setting and voice prompt.
The invention also provides an embodiment of a preferable echo sounder remote online metering method, which comprises the following steps:
the method comprises the following steps: a remote online metering system of an echo sounder comprises a microprocessor and a remote online server module; the system also comprises a carrier signal processing module used for capturing and processing carrier signals, a signal regeneration sending module used for generating echo signals, a time delay control processing module used for time sequence control, a communication transmission module used for data transmission, a data storage module used for data storage, a crystal oscillator traceability module used for system precision verification and a human-computer interaction module used for human-computer interaction, which are all connected with the microprocessor; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the time delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the human-computer interaction module.
a. And (5) connecting the devices. Connecting a signal output port of the echo depth finder with an interface of a communication transmission module through an RS485 submodule, and connecting a camera network cable in a video monitoring module with an interface of a router;
b. and (4) local parameter configuration. And respectively configuring parameters of the echo sounder, the communication transmission module and the client module in the remote online server module. Related information such as serial port baud rate, sound velocity, pulse width, communication protocol and the like is set in the echo sounder; parameters such as serial port baud rate, sound velocity, communication protocol and the like which are the same as those of the echo sounder are set in the communication transmission module, and the inspection depth mode is set as manual inspection; the IP and the port number which are required currently in the CLIENT module software in the remote online server module are configured, the transmission mode (STA mode and TCP _ CLIENT mode) of the WiFi sub-module is configured, and the IP of a camera in the video monitoring module is configured to be the same as the IP of the CLIENT module in the remote online server module.
c. And remote online parameter configuration. Software for opening a central server module in a remote online server module, setting a verification locationThe verification times j (j is 1,2,3, … …, M) of each verification position, a tester, test time and the like. The method comprises the steps that a plurality of different verification positions are used for evaluating the measurement accuracy of different depths in the measurement range of the echo sounder, multiple times of verification at each verification position are used for evaluating the measurement accuracy and repeatability of the echo sounder at the same depth, a user can determine the values of N and M according to the measurement range of the sounding sounder, the test depth, the measurement accuracy requirement, test equipment and field test conditions, generally, in order to ensure the test accuracy, N is larger than or equal to 5, M is larger than or equal to 5, and after the setting is finished, a confirmation key is clicked to finish remote online parameter configuration.
Step two: starting sounding and sending a carrier signal by an echo sounder;
step three: and (5) processing a carrier signal. The carrier signal processing module receives a signal sent by the echo sounder, and the frequency f and amplitude information of the carrier signal are demodulated by the frequency capturing submodule and the amplitude measuring submodule to obtain the waveform characteristics of the carrier signal. And outputting information such as frequency and amplitude data of the carrier signal to the microprocessor;
step four: the microprocessor detects the depth value according to the frequency f of the carrier signal and the set standard of the ith sectionCalculating to obtain the simulated transmission time t of the verification distance of the i-th sectioni(ii) a Analog transmission time tiSimulating the time for the echo sounder to receive the echo signal under the condition of the verification distance length of the ith section;
wherein, the simulation transmission time t of the verification distance of the ith sectioniIt can be calculated according to equation 1:
in equation 1:
the standard detection depth value of the ith section;
f, is the frequency of the effective carrier signal;
tiand the simulated transmission time of the verification distance in the ith section is used.
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the simulated transmission time tiTo a delay control processing module; time delay control processing module elapsed time tiThen sending an echo starting signal to a signal regeneration sending module; and the signal regeneration sending module generates an analog echo signal with the frequency f after receiving the echo starting signal.
The signal regeneration sending module further processes the analog echo signal according to the requirement:
an amplitude adjustment submodule, an echo control submodule and a depth adjustment submodule can be arranged to respectively carry out processing such as multi-path amplitude voltage adjustment, sending and stopping judgment, returning time and pulse width control, filtering reduction of signal interference of echo signals and the like on the echo signals.
Step six: calculating the actual depth sij. The echo signal returns to the echo sounder which calculates the analog depth value s of the jth measurement of the ith section verification distance according to the echo signalij(i 1,2,3, …, N, j 1,2,3, …, M) and sends it to the microprocessor. The microprocessor sends the received analog measured depth value to the remote online server module and the data storage module for storage;
step seven: and the remote online server module judges whether the verification distance of the ith section completes M times of measurement. If the measurement of M times is finished, the measurement of the verification distance of the ith section is finished, the step eight is carried out, and if not, the step two is returned;
step eight: and changing the serial number i of the verification distance segment, and judging whether the measurement of the N verification distances is carried out by the remote online server module. If the measurement of the N sections of verification distances is finished, turning to the ninth step, otherwise, sequentially changing to the next section of verification distance, and returning to the second step;
after the measurement is completed, the system generates the test data into an original record table, stores the video in the verification process, and uploads the original record table and the video to a database of the remote online server module.
Step nine: and the remote online server module judges whether the verification standard is met. The remote online server module calculates the average depth value of N times of measurement of the same detection position according to the formula (2), and the average depth value is compared with the set simulation verification depth value according to the formula (3)Comparing, and judging whether the standard of metrological verification is met; if the test result meets the metrological verification standard, the inspector inputs a qualified verification result in the central server and automatically generates an electronic verification certificate; if the verification result does not meet the metrological verification standard, a verification result notice is issued.
In the formula:the mean value (m) of the simulated measured depth values of the verification distance of the ith section is obtained; 1,2,3, … …, N;
sijsimulating a measured depth value for the jth measurement of the ith segment of the verification distance; j ═ 1,2,3, … …, M;
for standard certification depth value of i sectioni＝1,2,3,……，N；
ΔsiThe absolute error (m) is verified for the simulation of the verification distance of the ith segment. 1,2,3, … …, N;
and step ten, after the measurement is finished, generating an original record table by the system according to the test data, storing the video in the verification process, and uploading the original record table and the video to a database of the remote online server module.
Step eleven: and mailing the certificate of certification. And sending the certificate of inspection/the certificate of inspection result notice to the first party, and finishing the remote online inspection of the echo sounder.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A remote online metering system of an echo sounder is characterized by comprising a microprocessor and a remote online server module; the system also comprises a carrier signal processing module used for capturing and processing carrier signals, a signal regeneration sending module used for generating echo signals, a time delay control processing module used for time sequence control, a communication transmission module used for data transmission, a data storage module used for data storage, a crystal oscillator traceability module used for system precision verification and a human-computer interaction module used for human-computer interaction, which are all connected with the microprocessor; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the time delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the human-computer interaction module.
2. The remote online echo sounder gauging system according to claim 1, wherein said carrier signal processing module comprises: a receiving judgment submodule for receiving the carrier signal and judging the validity of the signal; a frequency acquisition sub-module for acquiring the frequency of the echo signal; and an amplitude measurement submodule for acquiring the amplitude of the carrier signal.
3. The remote online metering system of an echo sounder according to claim 1, wherein the signal regeneration transmitting module comprises: the amplitude adjusting submodule is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; the echo control submodule is used for controlling the sending, stopping, returning and pulse width of an echo signal; and the depth adjusting submodule is used for filtering the echo signals and amplifying the echo signals.
4. The remote online metering system of an echo sounder according to claim 1, wherein the delay control processing module comprises: the man-machine interaction time delay submodule is used for carrying out time sequence control on the man-machine interaction module; the carrier signal delay submodule is used for carrying out time sequence control on the carrier signal processing module; and the echo signal delay submodule is used for carrying out time sequence control on the signal regeneration sending module.
5. The remote online metering system of an echosounder according to claim 1, wherein said human-computer interaction module comprises: the liquid crystal display sub-module is used for displaying information; an input control submodule for inputting parameters; and the voice broadcasting submodule is used for broadcasting information.
6. The echosounder remote online metering system according to claim 1, wherein the remote online server module includes a client module for receiving and transmitting test data, a central server module for setting remote parameters and storing data, and a video monitoring module for video monitoring of an experimental site.
7. An echo sounder remote online gauging method using the echo sounder remote online gauging system of claim 1, comprising the steps of:
the method comprises the following steps: the echo sounder, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through the remote online server module, wherein the verification parameters comprise verification distance segment number N, measurement times M of each verification distance segment and standard verification depth value of the ith segmentWherein i is 1,2,3, …, N;
step two: starting sounding and sending a carrier signal by an echo sounder;
step three: the carrier signal processing module receives a carrier signal sent by the echo sounder, obtains frequency f and amplitude data of the carrier signal after processing, and outputs the frequency and amplitude data of the carrier signal to the microprocessor;
step four: the microprocessor calculates the analog transmission time t of the ith section of verification distance according to the frequency f of the carrier signali；
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the simulated transmission time tiTo a delay control processing module; time delay control processing module elapsed time tiThen sending an echo starting signal to a signal regeneration sending module; after receiving the echo starting signal, the signal regeneration sending module generates a simulation echo signal with the frequency f;
step six: the echo sounder receives the analog echo signal from the signal regeneration sending module, calculates the analog measured depth value and sends the analog measured depth value to the microprocessor; the microprocessor sends the received analog measured depth value to the remote online server module and the data storage module for storage;
step seven: the remote online server module adds 1 to the measurement frequency accumulation of the verification distance of the ith section, judges whether the measurement frequency of the verification distance of the ith section is less than M or not, and returns to the second step if the measurement frequency of the verification distance of the ith section is less than M;
step eight: changing the serial number i of the verification distance segments, and then repeating the steps from the second step to the seventh step until the verification measurement of all verification distance segment numbers is completed;
step nine: a remote online server module for averaging the simulated measured depth values of M measurements of the verification distance of the i-th segmentAnd will beAnd the set standard detection depth valueComparing, and judging whether the standard of metrological verification is met; if the electronic certificate meets the metrological verification standard, generating an electronic verification certificate; if the verification result does not meet the metrological verification standard, a verification result notice is issued.
8. The remote on-line measuring method for echo sounder according to claim 7, wherein in step four, the analog transmission time t of the verification distance in the i-th sectioniAnd calculating according to the formula 1 to obtain:
in equation 1:
the standard detection depth value of the ith section;
f, is the frequency of the effective carrier signal;
tiand the simulated transmission time of the verification distance in the ith section is used.
9. The remote online metering method of the echo sounder according to claim 7, wherein in step five, the signal regeneration transmitting module performs multi-path amplitude voltage adjustment, pulse width control and filtering processing on the generated analog echo signal.
10. The remote online metering method of the echo sounder according to claim 7, wherein in step one, the number of times M of measuring each segment of the verification distance is not less than 5.
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