CN109405933B - Remote online metering system and metering method for echo sounding instrument - Google Patents
Remote online metering system and metering method for echo sounding instrument Download PDFInfo
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
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Abstract
The invention discloses a remote online metering system of an echo sounder, which comprises a microprocessor and a remote online server module; the system also comprises a carrier signal processing module, a signal regeneration transmitting module, a time delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, wherein the carrier signal processing module is connected with the microprocessor and used for capturing and processing carrier signals, the signal regeneration transmitting module is used for generating echo signals, the time delay control processing module is used for time sequence control, the communication transmission module is used for data transmission, the data storage module is used for data storage, the crystal oscillator tracing module is used for system accuracy verification, and the man-machine interaction module is used for man-machine interaction; the microprocessor and the remote online server module are communicated through the communication transmission module; the delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the man-machine interaction module. The invention also discloses a remote on-line metering method of the echo sounder by using the system. The invention provides a remote online metering verification method which can realize remote online verification and calibration of water depth metering parameters of an echo sounder.
Description
Technical Field
The invention relates to the field of verification and calibration of water depth measuring equipment, in particular to a remote online metering system and a metering method of an echo sounder.
Background
The echo sounding instrument is a measuring instrument commonly used in water transport engineering, can accurately measure water depth data in the navigation process of a ship, and provides a powerful water depth measuring means for the vast sea workers.
At present, the conventional metering verification method of the echo sounder comprises the following steps: and placing the echo sounding instrument into a verification water tank, vertically and horizontally transmitting ultrasonic waves by the transducer, receiving the reflected echo by the sounding instrument, and comparing the indication value of the sounding instrument 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 complex, and the verification cost is high. In addition, the user needs to send the to-be-detected instrument to the verification/calibration unit through express delivery or freight transportation, the verification/calibration unit verifies the instrument and then issues related certificates, and then the instrument and the certificates are mailed into the hand of the user, so that the process causes great labor and time cost.
Disclosure of Invention
The invention provides an echo sounding instrument remote on-line metering system and a metering method thereof, which are convenient to operate and realize remote measurement, for solving the technical problems in the prior art.
The invention adopts the technical proposal for solving the technical problems in the prior art that: an echo sounding instrument remote on-line metering system comprises a microprocessor and a remote on-line server module; the system also comprises a carrier signal processing module, a signal regeneration transmitting module, a time delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, wherein the carrier signal processing module is connected with the microprocessor and used for capturing and processing carrier signals, the signal regeneration transmitting module is used for generating echo signals, the time delay control processing module is used for time sequence control, the communication transmission module is used for data transmission, the data storage module is used for data storage, the crystal oscillator tracing module is used for system accuracy verification, and the man-machine interaction module is used for man-machine interaction; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the man-machine interaction module.
Further, the carrier signal processing module includes: a receiving judging sub-module for receiving the carrier signal and judging the signal validity; a frequency acquisition sub-module for acquiring echo signal frequencies; and the amplitude measurement submodule is used for collecting the amplitude of the carrier signal.
Further, the signal regeneration transmitting module includes: the amplitude adjustment sub-module is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; an echo control sub-module for controlling the sending, stopping, returning and pulse width of the echo signal; and a depth adjustment sub-module for filtering processing of echo signals and signal amplification.
Further, the delay control processing module includes: the man-machine interaction time delay sub-module is used for performing time sequence control on the man-machine interaction module; a carrier signal delay sub-module for performing time sequence control on the carrier signal processing module; and the echo signal delay sub-module is used for carrying out time sequence control on the signal regeneration and transmission module.
Further, the man-machine interaction module includes: a liquid crystal display sub-module for displaying information; an input control sub-module for inputting parameters; and the voice broadcasting sub-module 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 video monitoring of an experiment site.
The invention also provides an echo sounding device remote on-line metering method using the echo sounding device remote on-line metering system, which comprises the following steps:
step one: the echo sounding instrument, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through a remote online server module, wherein the verification parameters comprise a verification distance segment number N, the measurement frequency M of each segment of verification distance, and the standard verification depth value of the ith segmentWherein i takes the values of 1,2,3, … and N;
step two: the echo sounding instrument starts sounding and sends out carrier signals;
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 verification distance according to the frequency f of the carrier signal i ；
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the analog transmission time t i To a delay control processing module; delay control processing module elapsed time t i After that, send out echo start signal to signalA regeneration transmitting module; the signal regeneration transmitting module generates an analog echo signal with the frequency f after receiving the echo starting signal;
step six: the echo sounding instrument receives the analog echo signal from the signal regeneration transmitting module, calculates an analog measurement depth value and transmits the analog measurement depth value to the microprocessor; the microprocessor sends the received simulation measured depth value to a remote online server module and a data storage module for storage;
step seven: the remote online server module adds 1 to the measurement times of the ith verification distance in an accumulated manner, judges whether the measurement times of the ith verification distance are smaller than M, and returns to the second step if the measurement times of the ith verification distance are smaller than M;
step eight: changing the verification distance segment serial number i, and then repeating the second to seventh steps until verification and measurement of all the verification distance segment numbers are completed;
step nine: remote on-line server module for averaging analog measured depth values of M times of measurement of ith verification distanceAnd will->And the set standard verification depth value->Comparing, and judging whether the metering verification standard is met; if the metering verification standard is met, generating an electronic verification certificate; and if the metering verification standard is not met, issuing a verification result notice.
Further, in the fourth step, the analog transmission time t of the i-th verification distance i Calculated according to the formula 1:
in equation 1:
the standard verification depth value of the i section;
f, is the frequency of the effective carrier signal;
t i the analog transmission time of the i-th verification distance.
In the fifth step, the signal regeneration and transmission module performs multipath amplitude voltage adjustment, pulse width control and filtering processing on the generated analog echo signal.
In the first step, the measurement times M of each verification distance are more than or equal to 5.
The invention has the advantages and positive effects that: according to the invention, the carrier signal is recognized and received, the echo signal with corresponding frequency is simulated, the sending time of the echo signal is judged, the calibration distance of the current echo depth finder is judged, the data is uploaded to an upper computer client through wireless transmission of a WiFi sub-module, real-time test monitoring is carried out through video, finally the test data and the real-time monitoring video are transmitted to a remote center server, and a verification certificate or verification result notice is generated according to a verification result, so that the problems of the requirement on a verification water tank and the time and cost brought by off-site sending and detection in the verification process of the echo depth finder are solved.
The invention can carry out depth inspection within any measuring range according to the needs of users, realizes the automatic inspection function of continuous multiple water level depths, simultaneously fuses the wireless network communication technology, provides a convenient and stable communication means for the remote control and verification calibration of the echo sounder, and realizes the remote real-time control.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic circuit diagram of one carrier signal processing module 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 of the present invention;
FIG. 5 is a schematic circuit diagram of one of the RS485 sub-modules of the communication transmission module according to the invention;
fig. 6 is a schematic circuit diagram of one WiFi sub-module of the communication transmission module according to the invention;
FIG. 7 is a schematic circuit diagram of one of the LCD sub-modules of the man-machine interaction module of the present invention;
FIG. 8 is a schematic circuit diagram of one of the input control sub-modules 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 man-machine interaction module of the present invention;
FIG. 10 is a schematic diagram of one of the data storage modules of the present invention;
FIG. 11 is a schematic diagram of a crystal oscillator tracing module according to the present invention;
FIG. 12 is a schematic diagram of a microprocessor circuit according to the present invention;
fig. 13 is a flowchart of the operation of the present invention.
In the figure: U1B, the first level shifter integrated circuit; U1C, second level shifter integrated circuit; u2, signal generator integrated circuit; u3, analog switch integrated circuit; u4, RS485 transceiver integrated circuit; u5, wiFi integrated circuit; u6, a liquid crystal display integrated circuit; u7, a key switch integrated circuit; u8, voice module integrated circuit; u9, memory integrated circuit; u10, a crystal oscillator integrated circuit; u11, CPU integrated circuit; r1, a first resistor; r2, a second resistor; r3, a third resistor; r4, a fourth resistor; r5, a fifth resistor; r6, a sixth resistor; r7, a seventh resistor; LED1, LED pilot lamp.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
in the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 in a specific case.
Referring to fig. 1 to 13, an echo sounding device remote online metering system includes a microprocessor and a remote online server module; the system also comprises a carrier signal processing module, a signal regeneration transmitting module, a time delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, wherein the carrier signal processing module is connected with the microprocessor and used for capturing and processing carrier signals, the signal regeneration transmitting module is used for generating echo signals, the time delay control processing module is used for time sequence control, the communication transmission module is used for data transmission, the data storage module is used for data storage, the crystal oscillator tracing module is used for system accuracy verification, and the man-machine interaction module is used for man-machine interaction; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the man-machine interaction module. The echo sounding instrument 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 STM32 series microprocessors, the STM32 series microprocessors are respectively connected with a carrier signal processing module, a signal regeneration transmitting 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 microprocessors are used for reading and executing instructions among the modules and exchanging information with the modules;
the carrier signal processing module receives and judges whether the echo sounder sends out an effective carrier signal, captures and measures the carrier signal frequency and amplitude in real time, and sends the measurement result to STM32 series microprocessors;
the signal regeneration and transmission module acquires information such as carrier signal frequency, amplitude and the like received by the STM32 series microprocessor, simulates echo signals with the same waveform, and transmits the echo signals to the STM32 series microprocessor for returning the echo signals to the echo sounding instrument;
the carrier signal processing module acquires the frequency and the amplitude of a carrier signal sent by the echo sounding instrument, processes the acquired frequency and the amplitude of the carrier signal and inputs the processed frequency and the amplitude of the carrier signal to the microprocessor, and the microprocessor sends the frequency and the amplitude of the carrier signal to the signal regeneration sending module, so that the signal regeneration sending module receives the information such as the frequency and the amplitude of the carrier signal sent by the STM32 and other series of microprocessors, simulates echo signals with the same waveform, sends the echo signals to the STM32 and other series of microprocessors, and is used for carrying out echo signal returning to the echo sounding instrument;
The man-machine interaction module performs man-machine page display, key control and voice broadcasting; the remote online server module performs remote data setting and data online 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 a marker bit of a carrier signal in the carrier signal processing module, and realizes us-level time management and analog switch high-level time control of an echo signal of the signal regeneration transmitting module;
the communication transmission module is connected with the remote online server module through the WiFi sub-module, realizes information interaction with the echo sounder through the 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 data arrangement and analysis are facilitated;
the crystal oscillator tracing module receives square wave signals in the STM32 series microprocessor timer and is used for checking the accuracy of the echo sounding instrument remote online metering system by external equipment;
Further, a power management module connected with the microprocessor for providing system working power can be also included. The power management module can provide working voltage power supply required by each module, and can perform overvoltage, undervoltage and overcurrent protection to realize the stable operation of the whole device;
further, the carrier signal processing module may include: a receiving judging sub-module for receiving the carrier signal and judging the signal validity; a frequency acquisition sub-module for acquiring echo signal frequencies; and the amplitude measurement submodule is used for collecting the amplitude of the carrier signal. The receiving and judging submodule can be used for receiving a carrier signal sent by the echo sounding instrument, judging the effectiveness of the signal and additionally arranging an LED indicator lamp LED1, outputting the signal to the LED indicator lamp LED1 by the receiving and judging submodule, and correspondingly adjusting and changing the flickering speed of the LED indicator lamp LED1 according to different signal frequencies; the frequency capturing submodule can be used for capturing the frequency of the echo signal, and outputting a frequency value to the microprocessor after the frequency is successfully captured; the amplitude measurement submodule can be used for collecting the amplitude of a carrier signal, and the amplitude is output to the microprocessor after the signal amplitude is successfully collected.
Further, the signal regeneration transmission module may include: the amplitude adjustment sub-module is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; an echo control sub-module for controlling the sending, stopping, returning and pulse width of the echo signal; and a depth adjustment sub-module for filtering processing of echo signals and signal amplification. The amplitude adjusting sub-module can be used for carrying out multipath 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 pulse width of the echo signals; the depth adjusting sub-module 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 realize multi-path voltage adjustment by adopting a 74HC138 decoder, 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 decreased; the echo control submodule adopts a CH443 analog switch to send and stop an echo signal, when the echo signal is not required to be sent out, the STM32 processor sets a CH443 level switching pin in a low level state, the CH443 analog switch is in an NC position, when the timer times out, the STM32 processor converts the CH443 level switching pin from the low level to the high level, sets the CH443 analog switch in an NO position, and returns the echo signal to the echo sounding instrument through the signal receiving end; the depth adjusting submodule can realize filtering processing and signal amplification of echo signals by adopting an AD9631 operational amplifier, inhibit clutter influence of the echo signals by constructing a resistor and capacitor circuit, and properly adjust amplitude of the echo signals by constructing a signal amplifying circuit so as to solve echo signal distortion caused by clutter.
Further, the delay control processing module may include: the man-machine interaction time delay sub-module is used for performing time sequence control on the man-machine interaction module; a carrier signal delay sub-module for performing time sequence control on the carrier signal processing module; and the echo signal delay sub-module is used for carrying out time sequence control on the signal regeneration and transmission module. The man-machine interaction time delay sub-module can be used for timing data updating of an LCD screen of the liquid crystal display sub-module, timing refreshing of the input control sub-module and timing reminding function in the process of the voice broadcasting sub-module, and can provide accurate time refreshing for the man-machine interaction module through timing control; the carrier signal delay sub-module can search carrier ending zone bits to 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 sub-module can realize the time management of the echo signal us level and the high-level time control of the CH443 analog switch, accurately record the carrier signal receiving time and the echo signal transmitting time, control the CH443 analog switch to transmit the echo signal to the echo sounding instrument, and carry out the signal regeneration transmitting module processing after the echo signal delay sub-module is finished.
Further, the communication transmission module may include an RS485 sub-module and a WiFi sub-module. The RS485 sub-module can receive the carrier signal of the echo sounder 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 man-machine interaction module may include: a liquid crystal display sub-module for displaying information; an input control sub-module for inputting parameters; and the voice broadcasting sub-module 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 a multi-pin key switch for selecting and setting parameters of the display screen; the voice broadcasting sub-module can realize the functions of current parameter value broadcasting and power supply low voltage alarming.
Further, the data storage module may comprise a W25Q16 chip. The data storage module may include a memory integrated circuit U9 and peripheral circuits thereof, wherein the memory integrated circuit U9 may be a W25Q16 chip, VCC and WPS pins of the memory integrated circuit U9 are connected to the power management module, a CS, SO, SCLK, SI pin of the memory integrated circuit U9 is connected to the STM32 series microprocessor, and a GND pin of the memory integrated circuit U9 is grounded.
Further, the crystal oscillator traceability module may include 5032 active crystal oscillator chips. The crystal oscillator tracing module can adopt a crystal oscillator integrated circuit U10 and a peripheral circuit thereof, wherein the crystal oscillator integrated circuit U10 can adopt a 5032 active crystal oscillator chip, a VCC pin of the crystal oscillator integrated circuit U10 is connected with a first resistor R1 pin, a pin at the other end 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 NC/OE pins of the crystal oscillator integrated circuit U10 are suspended.
Further, the remote online server module may include a client module for implementing the receiving and transmitting of 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. 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 experiment site.
The invention also provides an embodiment of an echo sounding device remote on-line metering method by using the echo sounding device remote on-line metering system, referring to fig. 13, comprising the following steps:
Step one: the echo sounding instrument, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through a remote online server module, wherein the verification parameters comprise a verification distance segment number N, the measurement frequency M of each segment of verification distance, and the standard verification depth value of the ith segmentWherein i takes the values of 1,2,3, … and N; in order to ensure the accuracy of the test, the value M is more than or equal to 5;
step two: the echo sounding instrument starts sounding and sends out carrier signals;
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 verification distance according to the frequency f of the carrier signal i The method comprises the steps of carrying out a first treatment on the surface of the Analog transmission time t i The time for transmitting and receiving echo signals for the analog echo sounding instrument under the condition of the ith verification distance length;
wherein, the simulation transmission time t of the ith verification distance i The calculation can be performed according to the formula 1:
in equation 1:
the standard verification depth value of the i section;
f, is the frequency of the effective carrier signal;
t i The analog transmission time of the i-th verification distance.
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the analog transmission time t i To a delay control processing module; delay control processing module elapsed time t i Then, sending an echo starting signal to a signal regeneration sending module; the signal regeneration transmitting module generates an analog echo signal with the frequency f after receiving the echo starting signal; the signal regeneration and transmission module can further process the generated analog echo signals through multipath amplitude voltage regulation, pulse width control, filtering treatment and the like;
step six: the echo sounding instrument receives the analog echo signal from the signal regeneration transmitting module, calculates an analog measurement depth value and transmits the analog measurement depth value to the microprocessor; the microprocessor sends the received simulation measured depth value to a remote online server module and a data storage module for storage;
step seven: the remote online server module adds 1 to the measurement times of the ith verification distance in an accumulated manner, judges whether the measurement times of the ith verification distance are smaller than M, and returns to the second step if the measurement times of the ith verification distance are smaller than M;
step eight: changing the verification distance segment serial number i, and repeating the second to seventh steps until verification and measurement of all the verification distance segment numbers are completed; the remote on-line server module can send out an instruction, change the serial number i of the verification distance segment, simultaneously set up the counter pair of the number of the verification distance segment to add 1 to the accumulation of the number of the verification distance segments measured, and when the verification measurement of all the number of the verification distance segments is completed, the count value of the counter of the number of the verification distance segments is N, namely the verification measurement of N verification distance segments is completed. Judging whether the measured value of the verification distance segment is smaller than N, if so, repeating the second to seventh steps; if the measured distance is equal to N, finishing the verification measurement of all the verification distance sections, and executing a step nine;
The method can change the ascending order from the 1 st section to the 2 nd section of verification distance, the 3 rd section of verification distance to the N th section of verification distance; the order of the N-th verification distance can be changed from the N-1 th verification distance to the N-2 nd verification distance until the 1 st verification distance.
Step nine: a remote online server module for averaging analog measured depth values of M measurements of the i-th (i=1, 2,3, …, N) verification distance in sequenceAnd will->And the set standard verification depth value->Comparing, and judging whether the metering verification standard is met; if the metering verification standard is met, generating an electronic verification certificate; and if the metering verification standard is not met, issuing a verification result notice.
The construction 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, a schematic diagram of the structure of the present invention is shown, and the present invention includes a microprocessor and a remote online server module; the system also comprises components such as a power management module, a carrier signal processing module, a signal regeneration transmitting module, a delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module, a man-machine interaction module, a remote online server module and the like which are all connected with the microprocessor. Wherein,
The microprocessor can adopt STM32 series microprocessors, and the STM32 series microprocessors are used for reading and executing instructions among all modules and exchanging information with all modules;
the power management module is used for providing the 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 with various voltages including 220V, 24V, 12V, 5V, 3.3V and the like, so as to supply power for modules which need power supplies in the systems 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; the over-voltage and under-voltage protection is carried out on the supplied voltage by an STM32 processor, and the current voltage value is calculated and compared with a reference value to judge whether the current voltage is normal or not; the over-current protection is realized by the PTC thermistor, and when the current in the circuit exceeds the rated current value, the PTC thermistor is in a high-resistance state, so that the circuit is in a relatively 'disconnected' state.
The carrier signal processing module receives and judges whether the echo sounder sends out an effective carrier signal, captures and measures the carrier signal frequency and amplitude in real time, and sends the measurement result to STM32 series microprocessors;
The signal regeneration and transmission module acquires information such as carrier signal frequency, amplitude and the like of the STM32 series microprocessor, simulates echo signals with the same waveform, and transmits the echo signals to the STM32 series microprocessor for returning the echo signals to the echo sounding instrument;
the delay control processing module refreshes a man-machine interaction delay submodule, an input control submodule and a voice broadcasting submodule in the man-machine interaction module at regular time, searches a marker bit in the carrier signal delay submodule, and realizes us-level time management of echo signals of the echo signal delay submodule and high-level time control of an analog switch;
the communication transmission module realizes information interaction with the echo sounder through the RS485 submodule, and the communication transmission module also transmits signal information of the STM32 series microprocessor to the upper computer through the WiFi submodule;
the data storage module can adopt a W25Q16 memory, can store a 2Mbits memory and is used for storing test data in the STM32 series microprocessor, so that later data arrangement and analysis are facilitated;
the crystal oscillator tracing module receives square wave signals in the STM32 series microprocessor timer and is used for checking the accuracy of the echo sounding instrument remote online metering system by external equipment;
The man-machine interaction module performs man-machine page display, key control and voice broadcasting; the remote online server module performs remote data setting and data online 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 judging sub-module for receiving the carrier signal and judging the signal validity; a frequency acquisition sub-module for acquiring echo signal frequencies; and the amplitude measurement submodule is used for collecting the amplitude of the carrier signal. After the signals are input to the carrier signal processing module, the signals firstly enter the receiving and judging sub-module and then are input to the frequency capturing sub-module and the amplitude measuring sub-module for processing. The receiving judging sub-module is used for receiving a carrier signal sent by the echo sounding instrument, judging the effectiveness of the signal, designing and outputting the signal to the LED indicator lamp for indication, and correspondingly adjusting and changing the flickering speed of the LED indicator lamp according to different signal frequencies; the frequency capturing submodule is used for capturing the frequency of the echo signal, and inputting the frequency value into the microprocessor in time after the frequency is successfully captured; the amplitude measurement submodule is used for collecting the amplitude of the carrier signal, and the amplitude is input to the microprocessor after the signal amplitude is successfully collected. The carrier signal processing module may include a 2-stage level conversion circuit formed by connecting a first-stage level converter integrated circuit U1B and a second-stage level converter integrated circuit U1C in series, and a peripheral circuit thereof, where the first-stage level converter integrated circuit U1B and the second-stage level converter integrated circuit U1C may each use an MC74HC4050 level converter chip, a 4 pin of the first-stage level converter integrated circuit U1B is connected with a 7 pin of the second-stage level converter integrated circuit U1C, and a 5 pin of the first-stage level converter integrated circuit U1B and a 6 pin of the second-stage level converter integrated circuit U1C are respectively connected with a seventh resistor R7 and an STM32 series microprocessor and an LED indicator LED1, and the sixth resistor R6 is connected with an echo sounder and a seventh resistor R7.
FIG. 3 is a schematic circuit diagram of one of the signal regeneration and transmission modules 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 realize multi-path voltage adjustment by adopting a 74HC138 decoder, the input end of the decoder is provided with an I/O port control of an STM32 processor, 8 states can be adjusted, and the voltage value of each path of state is gradually decreased; the echo control submodule adopts a CH443 analog switch to send and stop an echo signal, when the echo signal is not required to be sent out, the STM32 processor sets a CH443 level switching pin in a low level state, the CH443 analog switch is in an NC position, when the timer times out, the STM32 processor converts the CH443 level switching pin from the low level to the high level, sets the CH443 analog switch in an NO position, and returns the echo signal to the echo sounding instrument through the signal receiving end; the depth adjusting submodule can realize filtering processing and signal amplification of echo signals by adopting an AD9631 operational amplifier, inhibit clutter influence of the echo signals by constructing a resistor and capacitor circuit, and properly adjust amplitude of the echo signals by constructing a signal amplifying circuit so as to solve echo signal distortion caused by clutter. The signal regeneration and transmission module adopts a signal generator integrated circuit U2 and a peripheral circuit 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 of the present invention; the delay control processing module comprises a man-machine interaction delay sub-module, a carrier signal delay sub-module and an echo signal delay sub-module. The man-machine interaction delay sub-module is used for timing data updating of the LCD liquid crystal display sub-module screen, timing refreshing of the input control sub-module and timing reminding function in the process of the voice broadcasting sub-module; the carrier signal delay sub-module realizes carrier ending zone bit searching, records the current ending zone bit state in the timer interrupt, continuously refreshes the current ending zone bit state in the process, judges whether all carrier signals are received, and when the carrier signals are received, the program carries out signal regeneration sending judgment from the carrier ending zone bit position; the echo signal delay submodule realizes the time management of the us level of the echo signal and the high-level time control of the CH443 analog switch, the time required by the echo signal delay submodule to send is obtained through calculation and recorded into a timer, when the counter in the timer is consistent with the echo delay sending time, the high-level time control judgment is carried out, when the CH443 is positioned at the NO position by the NC, the timer is interrupted to continuously record the time state that the CH443 level conversion pin is positioned at the high position, and when the counter time is equal to the carrier signal input time, the CH443 level conversion pin is positioned at the low position, and the echo signal sending is ended. The delay control module comprises an analog switch integrated circuit U3 and a peripheral circuit thereof, wherein the analog switch integrated circuit U3 can be selected from CH443 analog switches, VDD and VL pins of the analog switch integrated circuit U3 are connected with the power management module, COM pins of the analog switch integrated circuit U3 are connected with the signal regeneration and transmission module, VEE and GND pins of the analog switch integrated circuit U3 are grounded, and NO and IN pins of the analog switch integrated circuit U3 are connected with the STM32 series microprocessors.
The communication transmission module comprises an RS485 module and a WiFi module. The communication transmission module has two working modes: the wired transmission mode accords with the STM32 processor to configure a communication protocol corresponding to the instrument to be detected, the instrument to be detected is connected with the serial port of the RS485 sub-module after the configuration is finished, and the instrument is opened to realize the wired transmission of data; the wireless transmission can be performed through wireless interaction by the WiFi submodule, and the connection to the upper position is completed by configuring IP and setting TCP_client.
FIG. 5 is a schematic circuit diagram of one of the RS485 sub-modules of the communication transmission module according to the invention; the RS485 module comprises an RS485 transceiver integrated circuit U4 and a peripheral circuit thereof, wherein the RS485 transceiver integrated circuit U4 can be a MAX487 module, a Vcc pin of the RS485 transceiver integrated circuit U4 is connected with the power management module, and RO (reverse osmosis) of the RS485 transceiver integrated circuit U4,DE. The pin D1 is connected with the STM32 series microprocessor, the pin A, B of the integrated circuit U4 of the RS485 transceiver is suspended, and the GND pin of the integrated circuit U4 of the RS485 transceiver is grounded;
fig. 6 is a schematic circuit diagram of one WiFi sub-module of the communication transmission module according to the invention; the WiFi module comprises a WiFi integrated circuit U5 and peripheral circuits thereof. ESP8266-01WiFi module can be selected to WiFi integrated circuit U5, the VCC of WiFi integrated circuit U5, G16, C D, G02 pin connect power management module, the UT of WiFi integrated circuit U5, UR, G00 pin connect STM32 series microprocessor, the GND pin of WiFi integrated circuit U5 ground.
The man-machine interaction module comprises a liquid crystal display sub-module, an input control sub-module and a voice broadcasting sub-module. The liquid crystal display sub-module can be 128 x 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 touch switch for selecting and setting parameters of the display screen; and the voice broadcasting submodule realizes the functions of current parameter value broadcasting and power supply low voltage alarming.
FIG. 7 is a schematic circuit diagram of one of the LCD sub-modules of the man-machine interaction module of the present invention; the liquid crystal display submodule comprises a liquid crystal display integrated circuit U6, the liquid crystal display integrated circuit U6 can select 256 x 64OLED display screens, 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, GND and CS pins of the liquid crystal display integrated circuit U6 are grounded, and RES and D/C, SCLK, SDIN pins of the liquid crystal display integrated circuit U6 are connected with the STM32 series microprocessors.
FIG. 8 is a schematic circuit diagram of one of the input control sub-modules of the human-computer interaction module of the present invention; the input control submodule key switch integrated circuit U7 can select a 4-pin tact switch, a pin 1, a pin 2, a pin 3 and a pin 4 of the key switch integrated circuit U7 are connected with the STM32 series microprocessor, a pin 5 of the key switch integrated circuit U7 is grounded, and 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 man-machine interaction module of the present invention; the voice broadcasting submodule comprises a voice module integrated circuit U8, the voice module integrated circuit U8 can be a SYN6288 voice module, a pin 1 of the voice module integrated circuit U8 is connected with the power management module, a pin 2, a pin 3 and a pin 5 of the voice module integrated circuit U8 are connected with the STM32 series microprocessor, and a pin 4 of the voice module integrated circuit U8 is grounded.
FIG. 10 is a schematic diagram of one of the data storage modules of the present invention; the data storage module comprises a memory integrated circuit U9 and peripheral circuits thereof, wherein the memory integrated circuit U9 can be a W25Q16 chip. The VCC and WPS pins of the memory integrated circuit U9 are connected with the power management module, the CS, SO, SCLK, SI pin of the memory integrated circuit U9 is connected with the STM32 series microprocessor, and the GND pin of the memory integrated circuit U9 is grounded.
FIG. 11 is a schematic diagram of a crystal oscillator tracing module according to the present invention; the crystal oscillator tracing module comprises a crystal oscillator integrated circuit U10 and peripheral circuits thereof, wherein the crystal oscillator integrated circuit U10 can be a 5032 active crystal oscillator chip. The VCC pin of the crystal oscillator integrated circuit U10 is connected with the first resistor R1 pin, the pin at the other end 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 of the present invention, where the STM32 series microprocessor includes a CPU integrated circuit U11 and its peripheral circuits, where the CPU integrated circuit U11 may be an STM32FRBT6 microprocessor, 3.3V and 5V of the CPU integrated circuit U11 are connected to the power management module, the PA0 pin of the CPU integrated circuit U11 is connected to the G00 pin of the voice module integrated circuit U8, the PA1 pin of the CPU integrated circuit U11 is connected to the 2 pin and 3 pin of the RS485 transceiver integrated circuit U4, the PA2 pin of the CPU integrated circuit U11 is connected to the 1 pin of the RS485 transceiver integrated circuit U4, the PA3 pin of the CPU integrated circuit U11 is connected to the 4 pin of the RS485 transceiver integrated circuit U4, the PA4 pin of the CPU integrated circuit U11 is connected to the 6 pin of the integrated circuit U1, the PA5 pin of the CPU integrated circuit U11 is connected to the 6 pin of the memory integrated circuit 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 12 pin of the signal generator integrated circuit U2, the PA15 pin of the CPU integrated circuit U11 is connected with the 6 pin of the analog switch integrated circuit U3, the PB8 pin of the CPU integrated circuit U11 is connected with the 5 pin of the WiFi integrated circuit U5, the PB9 pin of the CPU integrated circuit U11 is connected with the 2 pin of the WiFi integrated circuit U5, the PB10 pin of the CPU integrated circuit U11 is connected with the 3 pin of the WiFi integrated circuit U5, the PC0 pin of the CPU integrated circuit U11 is connected with the 1 pin of the analog switch integrated circuit U3, the PC1 pin of the CPU integrated circuit U11 is connected with the SDIN pin of the liquid crystal display integrated circuit U6, the PC2 pin of the CPU integrated circuit U11 is connected with the SCLK pin of the liquid crystal display integrated circuit U6, the PC3 pin of the CPU integrated circuit U11 is connected with the D/C pin of the liquid crystal display integrated circuit U6, the PC4 pin of the CPU integrated circuit U11 is connected with the RES pin of the liquid crystal display integrated circuit U6, the PC7 pin of the CPU integrated circuit U11 is connected with the 2 pin of the integrated circuit U2, the PC8 pin of the CPU integrated circuit U11 is connected with the 4 pin of the key switch integrated circuit U7, the PC9 pin of the CPU integrated circuit U11 is connected with the 3 pin of the key switch integrated circuit U7, the PC10 pin of the CPU integrated circuit U11 is connected with the 2 pin of the key switch integrated circuit U7, the PC11 pin of the CPU integrated circuit U11 is connected with the 1 pin of the key switch integrated circuit U7, the PC12 pin of the CPU integrated circuit U11 is connected with the 2 pin of the integrated circuit U01, and the GND and PC6 pins 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 video monitoring of an experiment site.
During testing, the signal output port of the echo sounding instrument is connected with the remote online metering system interface of the echo sounding instrument, the data communication port of the echo sounding instrument is connected with the data communication interface of the remote online metering system of the echo sounding instrument through the RS485 sub-module, and the network cable of the camera is connected with the network cable of the remote online metering system of the echo sounding instrumentIs connected with the router interface. Then, the echo sounding instrument remote online metering system and the upper computer parameters are locally configured, and the position to be verified is configured on the echo sounding instrument remote online metering systemAnd after the configuration is finished, monitoring whether the echo sounding instrument sends out signals or not in real time, and capturing carrier signal frequency f and amplitude v after sending out effective signals. If the captured signal is a carrier signal, the signal parameters are uploaded to a microprocessor, the signal is subjected to regeneration processing, an echo signal is simulated and returned to an echo sounding instrument, and the echo sounding instrument calculates a test depth value s ij (i=1, 2,3, …, N, j=1, 2,3, …, M). And the check depth value +.>Depth value s for echo sounding instrument test ij And uploading the video monitoring image to a client, transmitting the obtained information to a remote center server by the client, displaying the verified equipment information by the center server after finishing N different depth value measurements and M times of each depth value measurement, calculating an error value, and uploading the verification data, video recording, certificate number, metering mode, transportation unit, equipment name, equipment number, manufacturing unit, factory unit and other information to a database for storage. After verification is completed, a certificate/description is issued according to the verification result, and the certificate/description is sent to a 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 level of the echo signal us and judgment of the return of the echo signal to the echo sounding instrument; the communication transmission module is used for acquiring a test depth value of the echo sounder and interacting data and information of the remote upper computer; the man-machine interaction module realizes comparison of the test depth and the verification depth and checking of parameters and is used for setting parameters and voice prompt of a user display screen.
The invention also provides an embodiment of a preferred echo sounder remote online metering method, and the specific implementation method comprises the following steps:
step one: an echo sounding instrument remote on-line metering system comprises a microprocessor and a remote on-line server module; the system also comprises a carrier signal processing module, a signal regeneration transmitting module, a time delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, wherein the carrier signal processing module is used for capturing and processing carrier signals, the signal regeneration transmitting module is used for generating echo signals, the time delay control processing module is used for time sequence control, the communication transmission module is used for data transmission, the data storage module is used for data storage, the crystal oscillator tracing module is used for system accuracy verification, and the man-machine interaction module is used for man-machine interaction; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the man-machine interaction module.
a. The devices are connected. Connecting an echo sounding instrument signal output port with a communication transmission module interface through an RS485 submodule, and connecting a camera network cable in a video monitoring module with a router interface;
b. And (5) configuring local parameters. And respectively carrying out parameter configuration of the client module in the echo sounding instrument, the communication transmission module and the remote online server module. Setting serial port baud rate, sound velocity, pulse width, communication protocol and other relevant information in the echo sounding instrument; setting parameters such as serial port baud rate, sound velocity, communication protocol and the like which are the same as those of the echo sounder in a communication transmission module, and setting a test depth mode to be manual test; the IP and port number currently required in the CLIENT module software in the remote online server module and the WiFi sub-module transmission mode (STA mode and TCP_client mode) are configured, and the IP of the camera in the configuration video monitoring module is the same as the IP of the CLIENT module in the remote online server module.
c. Remote online parameter configuration. Software for opening a central server module in a remote online server module, and setting verification positionsEach assay locationThe number j (j=1, 2,3, … …, M), the test person, the test time, and the like. The method comprises the steps of determining the measurement accuracy of an echo sounding instrument in a measuring range, determining the measurement accuracy of the echo sounding instrument in the measuring range, determining the measurement accuracy requirement of the echo sounding instrument in the measuring range, determining the value of N and M by a user according to the measuring range, the measuring depth, the measurement accuracy requirement, and the test equipment and the field test condition, wherein the accuracy of the test is usually ensured, N is more than or equal to 5, M is more than or equal to 5, and clicking a confirmation key after the setting is completed to complete remote online parameter configuration.
Step two: the echo sounding instrument starts sounding and sends out carrier signals;
step three: and (5) carrier signal processing. The carrier signal processing module receives signals sent by the echo sounding instrument, and the frequency capturing submodule and the amplitude measuring submodule demodulate the frequency f and the amplitude information of the carrier signal 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 is used for detecting depth values according to the frequency f of the carrier signal and the standard of the set ith sectionCalculating to obtain the simulation transmission time t of the ith verification distance i The method comprises the steps of carrying out a first treatment on the surface of the Analog transmission time t i The time for receiving the echo signal under the condition of the ith verification distance length is simulated for the echo sounding instrument;
wherein, the simulation transmission time t of the ith verification distance i The calculation can be performed according to the formula 1:
in equation 1:
the standard verification depth value of the i section;
f, is the frequency of the effective carrier signal;
t i the analog transmission time of the i-th verification distance.
Step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the analog transmission time t i To a delay control processing module; delay control processing module elapsed time t i Then, sending an echo starting signal to a signal regeneration sending module; and the signal regeneration transmitting module generates an analog echo signal with the frequency f after receiving the echo starting signal.
The signal regeneration and transmission module further processes the analog echo signal according to the requirement:
the amplitude adjustment sub-module, the echo control sub-module and the depth adjustment sub-module can be arranged to respectively carry out multipath amplitude voltage adjustment, sending and stopping judgment, return time and pulse width control, filtering, signal interference reduction and other treatments on the echo signals.
Step six: calculating the actual depth s ij . The echo signal returns to the echo sounding instrument, and the echo sounding instrument calculates the simulated measured depth value s of the j-th measurement of the ith verification distance according to the echo signal ij (i=1, 2,3, …, N, j=1, 2,3, …, M) and sends it to the microprocessor. The microprocessor sends the received simulation measured depth value to a remote online server module and a data storage module for storage;
step seven: the remote online server module judges whether the ith verification distance is measured for M times. If M times of measurement are completed, finishing the measurement of the ith verification distance, turning to the eighth step, otherwise, returning to the second step;
Step eight: and changing the verification distance segment serial number i, and judging whether the measurement of the N segments of verification distances is carried out or not by the remote online server module. If the measurement of the N sections of verification distances is completed, turning to a step nine, otherwise, sequentially changing to the next section of verification distance, and returning to the step two;
and after the measurement is completed, the system generates an original record list from the test data, saves the video record of the verification process, and uploads the original record list and the video record to a database of a remote online server module.
Step nine: 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 verified with the set simulation according to the formula (3)Comparing, and judging whether the metering verification standard is met; if the test result accords with the metering verification standard, the inspector inputs the combined test result in the central server and automatically generates an electronic verification certificate; and if the metering verification standard is not met, issuing a verification result notice.
Wherein:measuring a depth value average value (m) for simulation of the ith verification distance; i=1, 2,3, … …, N;
s ij a simulated measurement depth value for a j-th measurement of the i-th calibration distance; j=1, 2,3, … …, M;
Standard assay depth value +.>i＝1,2,3,……，N；
Δs i Absolute error (m) is verified for the simulation of the ith verification distance. i=1, 2,3, … …, N;
and step ten, after the measurement is completed, the system generates an original record list from the test data, saves the video record of the verification process, and uploads the original record list and the video record to a database of a remote online server module.
Step eleven: verification certificate mailing. And mailing a notice of the verification certificate/verification result to the first party, and ending the remote online verification of the echo sounder.
The above-described embodiments are only for illustrating the technical spirit and features of the present invention, and it is intended to enable those skilled in the art to understand the content of the present invention and to implement it accordingly, and the scope of the present invention is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present invention are still within the scope of the present invention.
Claims (9)
1. The remote on-line metering system of the echo sounder is characterized by comprising a microprocessor and a remote on-line server module; the system also comprises a carrier signal processing module, a signal regeneration transmitting module, a time delay control processing module, a communication transmission module, a data storage module, a crystal oscillator tracing module and a man-machine interaction module, wherein the carrier signal processing module is connected with the microprocessor and used for capturing and processing carrier signals, the signal regeneration transmitting module is used for generating echo signals, the time delay control processing module is used for time sequence control, the communication transmission module is used for data transmission, the data storage module is used for data storage, the crystal oscillator tracing module is used for system accuracy verification, and the man-machine interaction module is used for man-machine interaction; the microprocessor is in communication connection with the remote online server module through the communication transmission module; the delay control processing module is also respectively connected with the signal regeneration sending module, the carrier signal processing module and the man-machine interaction module;
The remote online server module is used for setting verification parameters in the microprocessor, wherein the verification parameters comprise a verification distance segment number N, the measurement frequency M of each segment of verification distance and the standard verification depth value of the ith segmentWherein i takes the values of 1,2,3, … and N;
remote on-line server module that checks for each segmentThe distance is operated as follows until all verification distance segments are traversed: adding 1 to the measurement frequency of the ith verification distance, judging whether the measurement frequency of the ith verification distance is smaller than M, if so, enabling the echo sounding instrument to start sounding and sending out carrier signals; the number of times of measurement of the verification distance is equal to M until the ith section; averaging simulated measurement depth values for M measurements of the ith calibration distanceAnd will->And the set standard verification depth value->Comparing, and judging whether the metering verification standard is met; if the metering verification standard is met, generating an electronic verification certificate; if the metering verification standard is not met, a verification result notice is provided;
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;
The microprocessor calculates the analog transmission time t of the ith verification distance according to the frequency f of the carrier signal i The method comprises the steps of carrying out a first treatment on the surface of the Wherein, the simulation transmission time t of the ith verification distance i Calculated according to the formula 1:
in equation 1:
the standard verification depth value of the i section;
f, is the frequency of the effective carrier signal;
t i the simulation transmission time of the ith verification distance is the simulation transmission time of the ith verification distance;
the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the analog transmission time t i To a delay control processing module; delay control processing module elapsed time t i Then, sending an echo starting signal to a signal regeneration sending module; the signal regeneration transmitting module generates an analog echo signal with the frequency f after receiving the echo starting signal;
the echo sounding instrument receives the analog echo signal from the signal regeneration transmitting module, calculates an analog measurement depth value and transmits the analog measurement depth value to the microprocessor; and the microprocessor sends the received analog measured depth value to a remote online server module and a data storage module for storage.
2. The echo sounder remote on-line metering system of claim 1, wherein the carrier signal processing module comprises: a receiving judging sub-module for receiving the carrier signal and judging the signal validity; the frequency capturing sub-module is used for capturing the carrier signal frequency sent by the echo sounding instrument; and the amplitude measurement submodule is used for collecting the amplitude of the carrier signal.
3. The echo sounder remote on-line metering system of claim 1, wherein the signal regeneration transmission module comprises: the amplitude adjustment sub-module is used for carrying out multi-path voltage adjustment on the amplitude of the echo signal; an echo control sub-module for controlling the sending, stopping, returning and pulse width of the echo signal; and a depth adjustment sub-module for filtering processing of echo signals and signal amplification.
4. The echo sounder remote on-line metering system of claim 1 wherein the delay control processing module comprises: the man-machine interaction time delay sub-module is used for performing time sequence control on the man-machine interaction module; a carrier signal delay sub-module for performing time sequence control on the carrier signal processing module; and the echo signal delay sub-module is used for carrying out time sequence control on the signal regeneration and transmission module.
5. The echosounder remote on-line metering system of claim 1 wherein the human-machine interaction module comprises: a liquid crystal display sub-module for displaying information; an input control sub-module for inputting parameters; and the voice broadcasting sub-module is used for broadcasting information.
6. The echosounder remote online metering system of claim 1 wherein the remote online server module comprises a client module for enabling the reception and transmission of test data, a central server module for remote parameter setting and data storage, and a video monitoring module for video monitoring of an experimental site.
7. An echo sounding device remote on-line metering method using the echo sounding device remote on-line metering system of claim 1, comprising the steps of:
step one: the echo sounding instrument, the communication transmission module and the remote online server module are communicated with each other; setting verification parameters in the microprocessor through a remote online server module, wherein the verification parameters comprise a verification distance segment number N, the measurement frequency M of each segment of verification distance, and the standard verification depth value of the ith segmentWherein i takes the values of 1,2,3, … and N;
step two: the echo sounding instrument starts sounding and sends out carrier signals;
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 and obtains the simulation transmission time of the ith verification distance according to the frequency f of the carrier signalInterval t i ；
Wherein, the simulation transmission time t of the ith verification distance i Calculated according to the formula 1:
in equation 1:
the standard verification depth value of the i section;
f, is the frequency of the effective carrier signal;
t i The simulation transmission time of the ith verification distance is the simulation transmission time of the ith verification distance;
step five: the microprocessor sends the frequency value f of the carrier signal to the signal regeneration sending module and sends the analog transmission time t i To a delay control processing module; delay control processing module elapsed time t i Then, sending an echo starting signal to a signal regeneration sending module; the signal regeneration transmitting module generates an analog echo signal with the frequency f after receiving the echo starting signal;
step six: the echo sounding instrument receives the analog echo signal from the signal regeneration transmitting module, calculates an analog measurement depth value and transmits the analog measurement depth value to the microprocessor; the microprocessor sends the received simulation measured depth value to a remote online server module and a data storage module for storage;
step seven: the remote online server module adds 1 to the measurement times of the ith verification distance in an accumulated manner, judges whether the measurement times of the ith verification distance are smaller than M, and returns to the second step if the measurement times of the ith verification distance are smaller than M;
step eight: changing the verification distance segment serial number i, and then repeating the second to seventh steps until verification and measurement of all the verification distance segment numbers are completed;
step nine: remote on-line server module for averaging analog measured depth values of M times of measurement of ith verification distance And will->And the set standard verification depth value->Comparing, and judging whether the metering verification standard is met; if the metering verification standard is met, generating an electronic verification certificate; and if the metering verification standard is not met, issuing a verification result notice.
8. The method according to claim 7, wherein in step five, the signal regeneration and transmission module performs multi-path amplitude voltage adjustment, pulse width control and filtering processing on the generated analog echo signal.
9. The method according to claim 7, wherein in the first step, the measurement number M of each verification distance is equal to or greater than 5.
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