Thermocline probe and thermocline detection system

Abstract

The embodiment of the present application provides a temperature-salinity-depth probe and a temperature-salinity-depth detection system, wherein the temperature-salinity-depth probe comprises a probe underwater part and a probe overwater part, the probe underwater part and the probe overwater part are movably connected and exist communication transmission; the probe underwater part comprises a pressure detection module, which is used for detecting a pressure signal of a water area position where the probe underwater part is located; the probe overwater part receives the pressure signal and outputs. The temperature-salinity-depth probe in the embodiment directly detects the pressure signal of the water area position where the probe underwater part is located by additionally arranging the pressure detection module on the probe underwater part, and then calculates the corresponding depth value according to the corresponding relationship between the water pressure and the depth. Because the corresponding relationship between the water pressure and the depth is relatively constant, the accuracy of the calculated depth value can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of marine environment information monitoring, and in particular to a temperature-salinity-depth probe and a temperature-salinity-depth detection system. Background Art

[0002] To support the development of ocean exploration, meteorological monitoring, ship navigation, hydroacoustic measurement, and mission support for surface and even underwater vehicles, it is necessary to strengthen timely, accurate, and long-term measurement of temperature parameters corresponding to ocean depth in relevant ocean areas. This will provide hydrological, hydroacoustic, and other physical environmental parameters, and provide various navigation and detection equipment with profile temperature parameters corresponding to seawater depth, thereby obtaining temperature, salinity, and depth data for seawater profiles in the ocean. Currently, the most commonly used system for this measurement is the "Disposable Temperature and Depth Sounding System (XBT)."

[0003] The temperature, salinity, and depth probe in the "Disposable Temperature, Depth, and Sounding System" (XBT) is a disposable device designed for random deployment while a vessel is underway. It can be used on both regular oceanographic survey vessels and random commercial vessels (volunteer vessels), offering high flexibility. Its low cost and flexible use in a wide range of sea areas make it a valuable supplement to other underwater detection methods, including buoys, submersibles, SUVs, and AUVs. However, existing "disposable temperature, depth, and sounding systems" have the following issues: They calculate depth based on the probe's descent speed and duration, resulting in significant errors in the calculated depth.

[0004] However, there is currently no temperature and depth detection system that can overcome the above-mentioned defects. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide a temperature-salinity-depth probe and a temperature-salinity-depth detection system that overcomes the above problems or at least partially solves the above problems. The solution is as follows:

[0006] An embodiment of the present invention provides a temperature-salinity-depth probe, comprising: an underwater probe portion and an above-water probe portion, wherein the underwater probe portion and the above-water probe portion are movably connected and capable of communication transmission;

[0007] The underwater part of the probe includes a pressure detection module for detecting a pressure signal of the water area where the underwater part of the probe is located;

[0008] The above-water part of the probe receives and outputs the pressure signal.

[0009] Optionally, in the temperature-salinity-depth probe described in the embodiment of the present invention, the pressure detection module includes:

[0010] A pressure sensor, a signal acquisition end of which is in contact with a water area where the underwater part of the probe is located, is configured to convert the pressure of the water area where the underwater part of the probe is located into a first electric signal output;

[0011] A pressure detection and adjustment circuit, connected to a signal output end of the pressure sensor, is configured to convert the first electric signal into a direct current voltage signal and output the direct current voltage signal as the pressure signal;

[0012] A constant current source circuit outputs a constant current to provide a reference voltage for the pressure sensor.

[0013] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application further comprises a temperature detection module and an electrical conductivity detection module.

[0014] The temperature detection module is configured to detect a temperature signal of a water area where the underwater part of the probe is located.

[0015] The electrical conductivity detection module is configured to detect an electrical conductivity signal of the water area where the underwater part of the probe is located.

[0016] The above-water part of the probe receives the temperature signal and the electrical conductivity signal and outputs the same.

[0017] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application further comprises:

[0018] A temperature sensor, a signal acquisition end of which is in contact with a water area where the underwater part of the probe is located, is configured to convert the temperature of the water area where the underwater part of the probe is located into a second electric signal output.

[0019] A temperature detection and adjustment circuit, connected to a signal output end of the temperature sensor, is configured to convert the second electric signal into a direct current voltage signal and output the direct current voltage signal as the temperature signal.

[0020] And the electrical conductivity detection module comprises:

[0021] An electrical conductivity sensor, a signal acquisition end of which is in contact with a water area where the underwater part of the probe is located, is configured to convert the electrical conductivity of the water area where the underwater part of the probe is located into a third electric signal output.

[0022] An electrical conductivity detection and adjustment circuit, connected to a signal output end of the electrical conductivity sensor, is configured to convert the third electric signal into a direct current voltage signal and output the direct current voltage signal as the electrical conductivity signal.

[0023] A sine wave generation and power amplifier circuit generates an oscillation waveform of a sine wave according to a received first control instruction, and amplifies the oscillation waveform of the sine wave to serve as an alternating excitation voltage of the electrical conductivity sensor.

[0024] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application, the underwater part of the probe further comprises: an A / D analog conversion module, a first control module and a probe end communication module.

[0025] The A / D analog conversion module is connected with the output ends of the pressure detection and adjustment circuit, the temperature detection and adjustment circuit and / or the conductivity detection and adjustment circuit respectively, converts the pressure signal, the temperature signal and / or the conductivity signal from analog quantity to digital quantity and then transmits the digital quantity to the first control module.

[0026] The first control module is connected with the output end of the A / D analog conversion module, packs the pressure signal, the temperature signal and / or the conductivity signal converted from analog quantity to digital quantity, transmits the packed signal to a remote host computer through the probe end communication module, and the first control module is further used to generate the first control instruction and send it to the sine wave generation and power amplifier circuit.

[0027] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application, the probe end communication module is further used to receive a plurality of control instructions from a remote end and output.

[0028] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application, the underwater part of the probe further comprises a power-on control module, which is used to receive a power-on control instruction from a remote end through the probe end communication module and power on the temperature-salinity-depth probe according to the power-on control instruction.

[0029] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application, the power-on control module comprises: a power-on control circuit, a switch circuit, a rectifier circuit, a delay conversion control circuit, a power-on / communication conversion control circuit and a power-on / communication conversion switch.

[0030] The power-on control circuit controls the switch circuit to be conductive according to the power-on control instruction.

[0031] The switch circuit is connected with the output end of the power supply arranged in the temperature-salinity-depth probe, and the output end of the switch circuit is connected with the input end of the rectifier circuit, when the switch circuit is conductive, the output voltage of the power supply is rectified by the output end of the rectifier circuit and then output.

[0032] The first input end of the power-on / communication conversion switch is connected with the output end of the power supply arranged in the temperature-salinity-depth probe, the second input end of the power-on / communication conversion switch is connected with the output end of the power-on / communication conversion control circuit, and the input end of the power-on / communication conversion control circuit is connected with the control signal output end of the delay conversion control circuit.

[0033] The delay conversion control circuit outputs a control instruction through a control signal output end after a preset time delay, and controls the power-on / communication conversion control circuit to switch the power-on / communication conversion switch into a communication state.

[0034] Optionally, the temperature-salinity-depth probe further comprises a probe head shell, an electrical control section shell, a circuit board, a connecting shell, a plurality of tail wings, a flow guide cover, and a small wire spool.

[0035] The pressure sensor, the temperature sensor, and / or the electrical conductivity sensor are fixed to the inside of the probe head shell through a support clamp in the probe head shell, and the signal collection end of the pressure sensor, the temperature sensor, and / or the electrical conductivity sensor is exposed through an opening at a corresponding position of the probe head shell.

[0036] The circuit board has the pressure detection and adjustment circuit, the constant current source circuit, the temperature detection and adjustment circuit, the electrical conductivity detection and adjustment circuit, the sine wave generation and power amplifier circuit, the A / D analog conversion module, the first control module, and the probe end communication module integrated thereon.

[0037] The electrical control section shell has a front end connected to the probe head shell and a rear end connected to the connecting shell, and the circuit board is fixed and sealed in the electrical control section shell.

[0038] The plurality of tail wings are evenly distributed and fixed to the outer surface of the connecting end.

[0039] The flow guide cover is in a ring structure and is fixed to the rear end of the plurality of tail wings.

[0040] The small wire spool is fixed to the electrical control section shell, the connecting shell, or the flow guide cover, has a double-core enameled wire wound thereon, and one end of the double-core enameled wire is electrically connected to the circuit board.

[0041] Optionally, the temperature-salinity-depth probe further comprises an outer cylinder, a large wire spool, and a probe end contact.

[0042] The outer cylinder is used to movably connect the underwater part of the probe to the inside of the outer cylinder.

[0043] The large wire spool is built into the bottom of the outer cylinder, the other end of the double-core enameled wire wound on the small wire spool is fixed to the tail of the large wire spool and wound on the large wire spool.

[0044] The probe end contact is fixed to the tail of the large wire spool and is electrically connected to the other end of the double-core enameled wire.

[0045] Optionally, the temperature-salinity-depth probe according to the embodiment of the present application further comprises a plug, the plug comprising a connecting portion and a locking portion; and

[0046] Each of the tail wings is provided with a first mounting hole;

[0047] The outer cylinder is provided with two second mounting holes in opposition, and a dismounting hole matched with at least one of the second mounting holes;

[0048] The first mounting hole and the second mounting hole are matched with the connecting portion of the plug, and the dismounting hole is matched with the locking portion of the plug;

[0049] The connecting portion of the plug passes through the two second mounting holes and the first mounting hole of any one of the tail wings, and the locking portion of the plug is clamped into the dismounting hole, so that the probe water surface part is movably connected to the outer cylinder of the probe underwater part.

[0050] The embodiment of the present application further provides a temperature-salinity-depth detection system, comprising the temperature-salinity-depth probe, a launching device, a data acquisition device, and an upper computer.

[0051] The launching device is used for launching the temperature-salinity-depth probe, and the probe water surface part of the temperature-salinity-depth probe is fixed to the launching device and is in communication connection with the launching device.

[0052] The data acquisition device is in communication connection with the launching device, acquires the pressure signal, the temperature signal and / or the conductivity signal detected by the temperature-salinity-depth probe through the launching device, and transmits the signals to the upper computer.

[0053] The upper computer obtains the pressure value of the water area where the probe underwater part of the temperature-salinity-depth probe is located according to the pressure signal, and / or obtains the temperature value of the water area where the probe underwater part of the temperature-salinity-depth probe is located according to the temperature signal, and / or obtains the conductivity value and the salinity value of the water area where the probe underwater part of the temperature-salinity-depth probe is located according to the conductivity signal.

[0054] Optionally, the temperature-salinity-depth detection system according to the embodiment of the present application, the launching device comprises a launching end contact, an external lead socket and a bracket.

[0055] The launching end contact is in electric connection with the probe end contact of the temperature-salinity-depth probe.

[0056] The external lead socket is in electric connection with the launching end contact and the data acquisition device.

[0057] The bracket is used for mounting and fixing the probe water surface part of the temperature-salinity-depth probe.

[0058] Optionally, the temperature-salinity-depth detection system, the data acquisition device comprises: a second control module, a probe installation state detection module, a probe power-on control module, and a data acquisition device end communication module.

[0059] The second control module controls the probe installation state detection module to establish a communication connection with the temperature-salinity-depth probe through the data acquisition device end communication module according to a received installation state detection instruction from the upper computer before the underwater part of the probe is launched, detects the installation and connection state of the temperature-salinity-depth probe, and judges whether the installation of the temperature-salinity-depth probe is in place according to a received installation detection result signal fed back by the probe installation state detection module, and sends a power-on operation instruction after judging that the installation is in place.

[0060] The probe power-on control module controls the temperature-salinity-depth probe to be powered on after receiving the power-on operation instruction.

[0061] Optionally, the temperature-salinity-depth detection system, the double-core enameled wire wound around the large spool and the small spool is used to establish signal transmission between the probe end communication module and the data acquisition device end communication module.

[0062] Optionally, the temperature-salinity-depth detection system, the probe installation state detection module comprises: a first optoelectronic isolation circuit, a second optoelectronic isolation circuit, a first switch driving circuit, a first changeover switch, a differential amplification circuit, and a comparison circuit.

[0063] The first optoelectronic isolation circuit is connected with the control signal output end of the second control module at the input end and connected with the input end of the first switch driving circuit at the output end, transmits the switching control instruction received from the second control module to the first switch driving circuit after optoelectronic isolation processing, and transmits the switching control instruction received from the second control module to the first switch driving circuit after optoelectronic isolation processing.

[0064] The first switch driving circuit is connected with the control end of the first changeover switch at the output end, drives the first changeover switch to switch between information receiving or information sending states according to the received switching control instruction.

[0065] The first changeover switch is in communication connection with the double-core enameled wire, transmits the state detection signal generated by the second control module to the temperature-salinity-depth probe through the double-core enameled wire when in the information sending state, and receives the result signal fed back by the temperature-salinity-depth probe after receiving the state detection signal through the double-core enameled wire when in the information receiving state.

[0066] The first differential amplification circuit is connected with the output end of the first changeover switch at the input end, amplifies and processes the result signal output by the first changeover switch, and then outputs the result signal.

[0067] The comparison circuit, a first input end of which is connected with the output end of the first differential amplification circuit, and a second input end of which is connected with the control signal output end of the second control module to obtain the state detection signal, the signal output after the comparison of the result signal and the state detection signal by the comparison circuit being the installation detection result signal;

[0068] The second optoelectronic isolation circuit, an input end of which is connected with the output end of the comparison circuit, and an output end of which is connected with the signal input end of the second control module, is used for transmitting the installation detection result signal received after the optoelectronic isolation processing to the second control module.

[0069] Optionally, the temperature-salinity-depth detection system, the probe power-on control module comprises a third optoelectronic isolation circuit, a fourth optoelectronic isolation circuit, a first gating control circuit, a second gating control circuit, a second switch driving circuit and a second change-over switch.

[0070] The third optoelectronic isolation circuit, an input end of which is connected with the control signal output end of the second control module, and an output end of which is connected with the input end of the first gating control circuit, is used for transmitting the power-on operation instruction received from the second control module after the optoelectronic isolation processing to the first gating control circuit.

[0071] The fourth optoelectronic isolation circuit, an input end of which is connected with the control signal output end of the second control module, and an output end of which is connected with the input end of the second gating control circuit, is used for transmitting the power-on operation instruction received from the second control module after the optoelectronic isolation processing to the second gating control circuit.

[0072] The output end of the first gating control circuit and the output end of the second gating control circuit are respectively connected with the first input end and the second input end of the second switch driving circuit, and the output end of the second switch driving circuit is connected with the control end of the second change-over switch.

[0073] When the first gating control circuit is in the gating state, the second gating control circuit is in the non-gating state, at this time, the power-on operation instruction is transmitted to the second switch driving circuit through the first gating control circuit; when the first gating control circuit is in the non-gating state, the second gating control circuit is in the gating state, at this time, the power-on operation instruction is transmitted to the second switch driving circuit through the second gating control circuit.

[0074] The second switch driving circuit controls the second conversion switch to send a first power-on operation state instruction as the power-on control instruction when the first input end receives the power-on operation instruction, and controls the second conversion switch to send a second power-on operation state instruction as the power-on control instruction when the second input end receives the power-on operation instruction.

[0075] The output end of the second conversion switch is electrically connected with a power-on control module of the CTD probe, and outputs the power-on control instruction to the power-on control module to control the power-on of the CTD probe through the dual power supply.

[0076] Optionally, the CTD probe system provided in the embodiment of the present application further comprises a fifth optoelectronic isolation circuit, a communication control circuit, a third switch driving circuit and a third conversion switch.

[0077] The input end of the fifth optoelectronic isolation circuit is connected with the control signal output end of the second control module, and the output end is connected with the input end of the communication control circuit, so as to transmit the communication control signal received from the second control module to the communication control circuit after optoelectronic isolation processing; the communication control signal is sent after the power-on control instruction is sent.

[0078] The output end of the communication control circuit is connected with the control end of the third switch driving circuit, and the output end of the third switch driving circuit is connected with the control end of the third conversion switch; the communication control circuit controls the third switch driving circuit to drive the third conversion switch to enter a communication connection state after receiving the communication control signal.

[0079] The third conversion switch is electrically connected with the communication module of the acquisition device, and controls the communication module of the acquisition device to be in an information receiving state to receive the pressure signal, the temperature signal and / or the conductivity signal sent by the communication module of the probe after entering the communication connection state.

[0080] The embodiment of the present application provides a CTD probe and a CTD detection system, wherein the CTD probe comprises a probe underwater part and a probe above-water part, and the probe underwater part and the probe above-water part are movably connected and in communication transmission; the probe underwater part comprises a pressure detection module for detecting a pressure signal of a water area where the probe underwater part is located; and the probe above-water part receives the pressure signal and outputs. The CTD probe in the embodiment directly detects the pressure signal of the water area where the probe underwater part is located by adding a pressure detection module to the probe underwater part, and calculates the corresponding depth value according to the corresponding relationship between water pressure and depth. Because the corresponding relationship between water pressure and depth is relatively constant, the accuracy of the calculated depth value can be ensured.

[0081] The above description is only a summary of the technical solutions of the present application. In order to make the technical solutions of the present application more clearly understood and implemented, and to make the above and other purposes, features and advantages of the present application more apparent and easy to understand, the following will specifically describe the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0082] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals are intended to denote the same components throughout the accompanying drawings. In the drawings:

[0083] Figure 1 A schematic diagram of the working state of the temperature-salinity-depth probe in Embodiment 1 of the present application;

[0084] Figure 2 A circuit schematic diagram of a specific example of the underwater part of the probe in Embodiment 1 of the present application;

[0085] Figure 3 A circuit schematic diagram of a specific example of the power-on control module in Embodiment 1 of the present application;

[0086] Figure 4 A structural schematic diagram of a specific example of the underwater part of the probe in Embodiment 1 of the present application;

[0087] Figure 5 A mounting schematic diagram of a specific example of the sensor in the probe head shell in Embodiment 1 of the present application;

[0088] Figure 6 A structural schematic diagram of a specific example of the underwater part of the probe in Embodiment 1 of the present application;

[0089] Figure 7 A structural schematic diagram of a specific example of the underwater part of the probe and the active connection of the underwater part and the above-water part of the probe in Embodiment 1 of the present application;

[0090] Figure 8 A structural schematic diagram of a specific example of the temperature-salinity-depth detection system in Embodiment 2 of the present application;

[0091] Figure 9 A structural schematic diagram of a specific example of the launching device in Embodiment 2 of the present application;

[0092] Figure 10 A circuit schematic diagram of a specific example of the data acquisition device in Embodiment 2 of the present application;

[0093] Figure 11A circuit principle block diagram of a specific example of the probe installation state detection module in Embodiment 2 of the present application;

[0094] Figure 12 A circuit principle block diagram of a specific example of the probe power-on control module in Embodiment 2 of the present application;

[0095] Figure 13 A circuit principle block diagram of a specific example of the serial communication conversion circuit in Embodiment 2 of the present application;

[0096] Reference numerals

[0097] 1-temperature-salinity-depth probe; 2-launching device; 3-upper computer; 4-data acquisition device; 11-probe underwater part; 12-probe above-water part; 13-latch; 21-launching end contact; 22-external lead socket; 23-carrier; 111-probe head shell; 112-electric control section shell; 113-circuit board; 114-connection shell; 115-fins; 116-duct; 117-small wire spool; 121-outer cylinder; 122-large wire spool; 123-probe end contact; 1151-first mounting hole; 1211-second mounting hole; 1212-disassembly hole. DETAILED DESCRIPTION

[0098] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thoroughly and completely understood, and will be fully conveyed to those skilled in the art.

[0099] Embodiment 1

[0100] The present embodiment provides a temperature-salinity-depth probe, comprising: a probe underwater part and a probe above-water part, the probe underwater part and the probe above-water part being movably connected and in communication transmission;

[0101] The probe underwater part comprises a pressure detection module for detecting a pressure signal of a water area position where the probe underwater part is located;

[0102] The probe above-water part receives the pressure signal and outputs.

[0103] Figure 1For an application example of the temperature-salinity-depth probe 1 in the embodiment, in the application, the underwater part 11 of the probe is put into the monitored sea area for underwater detection, and the underwater part 11 and the underwater part 12 of the probe are connected by a cable (for example, a double-core enameled wire) for wired connection for bidirectional information transmission. In the prior art, the depth value is usually calculated according to the falling speed and time of the temperature-salinity-depth probe, and the environment of the sea area is changeable, and there are many factors affecting the falling speed, and the corresponding relationship between the falling speed and the time is changing at any time, which leads to a large error of the calculated depth value. In the embodiment, the pressure detection module is additionally arranged in the underwater part of the probe to directly detect the pressure signal of the water area where the underwater part of the probe is located, and the corresponding depth value is calculated according to the corresponding relationship between the water pressure and the depth. Because the corresponding relationship between the water pressure and the depth is relatively constant, the accuracy of the calculated depth value can be ensured.

[0104] As shown in Figure 2 , the temperature-salinity-depth probe in the embodiment includes:

[0105] a pressure sensor, a signal acquisition end of which is in contact with the water area where the underwater part of the probe is located, for converting the pressure of the water area where the underwater part of the probe is located into a first electric signal output;

[0106] a pressure detection and adjustment circuit, connected with the signal output end of the pressure sensor, for converting the first electric signal into a direct current voltage signal as a pressure signal output;

[0107] a constant current source circuit, outputting a constant current to provide a reference voltage for the pressure sensor.

[0108] In the application, the pressure sensor can be a diffusion silicon pressure sensor or a piezoelectric pressure sensor, which is not limited in the embodiment. The pressure detection and adjustment circuit can be composed of a differential amplification circuit, an amplification circuit and a buffer adjustment circuit. The constant current source circuit generates a constant current to provide a constant reference voltage for the pressure sensor, the pressure signal (voltage signal) output by the pressure sensor is amplified by the differential amplification circuit, and the pressure signal is adjusted within a certain range by the buffer adjustment circuit, so that the output pressure signal is clearer and more stable.

[0109] From Figure 2 it can be seen that the temperature-salinity-depth probe in the embodiment further includes a temperature detection module and an electrical conductivity detection module;

[0110] the temperature detection module is used for detecting the temperature signal of the water area where the underwater part of the probe is located;

[0111] the electrical conductivity detection module is used for detecting the electrical conductivity signal of the water area where the underwater part of the probe is located;

[0112] The water-over portion of the probe receives temperature signals and conductivity signals and outputs.

[0113] Optionally, the temperature detection module comprises:

[0114] a temperature sensor, a signal acquisition end of which is in contact with the water area where the water-under portion of the probe is located, for converting the temperature of the water area where the water-under portion of the probe is located into a second electric signal output;

[0115] a temperature detection and adjustment circuit, connected with the signal output end of the temperature sensor, for converting the second electric signal into a direct current voltage signal and outputting the direct current voltage signal as a temperature signal;

[0116] and the conductivity detection module comprises:

[0117] a conductivity sensor, a signal acquisition end of which is in contact with the water area where the water-under portion of the probe is located, for converting the conductivity of the water area where the water-under portion of the probe is located into a third electric signal output;

[0118] a conductivity detection and adjustment circuit, connected with the signal output end of the conductivity sensor, for converting the third electric signal into a direct current voltage signal and outputting the direct current voltage signal as a conductivity signal;

[0119] a sine wave generation and power amplifier circuit, for generating an oscillation waveform of a sine wave according to the received first control instruction, and for outputting the oscillation waveform of the sine wave as an alternating excitation voltage of the conductivity sensor after power amplification.

[0120] In the application, the temperature detection and adjustment circuit can be composed of an R / V conversion circuit, an amplification circuit and a buffer adjustment circuit. The R / V conversion circuit detects the resistance value of the temperature sensor, continuously converts the resistance value into a direct current voltage value output in real time, and then adjusts the output voltage value within a certain range through the amplification circuit and the buffer adjustment circuit. The conductivity detection and adjustment circuit can be composed of a differential amplification circuit, a band-pass filter circuit and a rectification adjustment circuit. The sine wave generation and power amplifier circuit generates a sine wave, which can be used as an alternating excitation voltage of the conductivity sensor after power amplification. The signal output by the conductivity sensor is amplified by the differential amplification circuit and output, and is converted into a direct current voltage and adjusted within a certain range after the band-pass filter circuit and the rectification adjustment circuit, so that the output temperature signal and conductivity signal are clearer and more stable.

[0121] From Figure 2 It can be seen that the temperature-salinity-depth probe in the embodiment further comprises an A / D analog conversion module, a first control module and a probe end communication module.

[0122] An A / D analog conversion module, input ends of which are connected with output ends of the pressure detection and adjustment circuit and / or the temperature detection and adjustment circuit and / or the conductivity detection and adjustment circuit respectively, transmits the pressure signal and / or the temperature signal and / or the conductivity signal converted from analog quantity to digital quantity to the first control module;

[0123] The first control module, connected with the output end of the A / D analog conversion module, transmits the pressure signal and / or the temperature signal and / or the conductivity signal converted from analog quantity to digital quantity to the upper computer at the remote end after being packed, and is also used for generating the first control instruction and sending it to the sine wave generation and power amplifier circuit.

[0124] In the application, the A / D analog conversion module can include a plurality of A / D conversion circuits, which respectively convert the analog quantity of the temperature signal, the pressure signal and the conductivity signal detected into digital quantity and then transmit them to the first control module; the first control module can include a single-chip microcomputer and peripheral circuits, which are used as the main control CPU of the underwater part of the probe.

[0125] Optionally, the temperature-salinity-depth probe in the embodiment is also used for receiving a plurality of control instructions from the remote end and outputting them, so as to establish the bidirectional communication between the temperature-salinity-depth probe and the main control device at the remote end.

[0126] From Figure 2 It can be seen that the underwater part of the temperature-salinity-depth probe in the embodiment further includes a power-on control module, which is used for receiving the power-on control instruction from the remote end through the probe end communication module and powering on the temperature-salinity-depth probe according to the power-on control instruction.

[0127] As shown in Figure 3 The power-on control module of the temperature-salinity-depth probe in the embodiment includes a power-on control circuit, a switching circuit, a rectifier circuit, a delay conversion control circuit, a power-on / communication conversion control circuit and a power-on / communication conversion switch.

[0128] The power-on control circuit controls the switching circuit to be turned on according to the power-on control instruction.

[0129] The switching circuit, the input end of which is connected with the output end of the power supply arranged in the temperature-salinity-depth probe, and the output end of which is connected with the input end of the rectifier circuit, outputs the output voltage of the power supply after being rectified by the output end of the rectifier circuit when the switching circuit is turned on; in the application, the power-on control instruction can be a pulse signal. The switching circuit can include a combination of a plurality of switching devices, such as a combination of thyristor switching devices and triode switching devices, to realize the turning on or turning off according to the power-on control instruction, to realize the connection or disconnection of the power supply and realize the power-on control. The switching devices have the advantages of stable performance, fast response speed and low energy consumption.

[0130] A power-on / communication conversion switch, wherein a first input end thereof is connected to the output end of the power supply provided in the temperature-salinity-depth probe, a second input end thereof is connected to the output end of the power-on / communication conversion control circuit, and an input end of the power-on / communication conversion control circuit is connected to the control signal output end of the delay conversion control circuit;

[0131] After the delay conversion control circuit delays to a preset time length, it outputs a control instruction through its control signal output terminal to control the power-on / communication conversion control circuit to turn the power-on / communication conversion switch into the communication state.

[0132] After power-on, the delayed communication circuit switches the power-on / communication switch from the power-on connection end to the communication connection end by controlling the power-on / communication conversion control circuit, putting it in a serial communication state, which can reduce energy consumption and maintain communication connection with the outside.

[0133] like Figure 4 As shown, the underwater part of the temperature-salinity-depth probe in this embodiment further includes: a probe head housing 111, an electrical control section housing 112, a circuit board 113, a connecting housing 114, a plurality of tail fins 115, a deflector 116, and a small spool 117;

[0134] The pressure sensor and / or temperature sensor and / or conductivity sensor are fixed to the inside of the probe head housing 111 by means of a bracket in the probe head housing 111, and the signal acquisition end of the pressure sensor and / or temperature sensor and / or conductivity sensor protrudes through the opening at the corresponding position of the probe head housing;

[0135] Circuit board 113, on which are integrated a pressure detection and adjustment circuit and a constant current source circuit, and / or a temperature detection and adjustment circuit, and / or a conductivity detection and adjustment circuit, and a sine wave generation and power amplifier circuit, and / or an A / D analog conversion module, a first control module, and a probe end communication module;

[0136] The electrical control section housing 112 has a front end connected to the probe head housing and a rear end connected to the connecting housing 114, and a circuit board 113 is sealed and waterproofed therein;

[0137] A plurality of tail fins 115 are evenly distributed and fixed on the outer surface of the connecting end;

[0138] The fairing 116 is an annular structure fixed to the rear ends of the plurality of tail fins;

[0139] The small spool 117 is fixed to the electrical control section housing 112 or the connecting housing 114 or the air guide cover 116 , and a double-core enameled wire is wound on it, and one end of the double-core enameled wire is electrically connected to the circuit board 113 .

[0140] In applications, such as Figure 5As shown, the pressure sensor, the temperature sensor and the conductivity sensor are fixed in the probe head shell through the support in the probe head shell, and the signal collection ends of the pressure sensor, the temperature sensor and the conductivity sensor are exposed through the openings at the corresponding positions of the probe head shell, so that the signal collection is accurate. The pressure detection and adjustment circuit, the constant current source circuit, the temperature detection and adjustment circuit, the conductivity detection and adjustment circuit, the sine wave generation and power amplifier circuit, the A / D analog conversion module, the first control module and the probe end communication module are integrated on the circuit, so that the internal structure of the temperature-salinity-depth probe is more compact, the volume is reduced, the influence of the buoyancy is reduced, and the temperature-salinity-depth probe can be put into water faster. The probe underwater part is put into the monitoring sea area, and the tail wing and the fairing jointly act during the descending process, so that the perpendicularity and the descending speed of the probe underwater part in water can be well controlled. The enameled wire is wound on the small spool and used for paying out the wire during the descending process of the probe underwater part in water.

[0141] As shown in the drawings, Figure 6 The temperature-salinity-depth probe in the embodiment includes a probe water part and a probe underwater part.

[0142] The outer cylinder is used for movably connecting the probe underwater part inside the outer cylinder.

[0143] The large spool is built in the bottom of the outer cylinder, the other end of the double-core enameled wire wound on the small spool is fixed to the tail of the large spool and wound on the large spool.

[0144] The probe end contact is fixed to the tail of the large spool and electrically connected with the other end of the double-core enameled wire.

[0145] In application, the probe water part can be connected with the launching device, the probe underwater part is the main body of the temperature-salinity-depth probe detection, and the probe is put into water for seawater profile detection during detection. The probe water part is mainly composed of the outer cylinder and the large spool. The outer cylinder is used for loading and placing the probe underwater part, and the large spool is used for winding the double-core enameled wire and wiredly connected with the small spool of the probe underwater part and the launching device, so as to pay out the wire on water.

[0146] As shown in the drawings, Figures 4-7 The temperature-salinity-depth probe in the embodiment further includes a latch 13, the latch includes a connecting part and a locking part, and the temperature-salinity-depth probe further includes:

[0147] A first mounting hole 1151 is arranged on each tail wing;

[0148] Two second mounting holes 1211 are oppositely arranged on the outer cylinder, and a dismounting hole 1212 matched with at least one second mounting hole is arranged on the outer cylinder;

[0149] The first mounting hole and the second mounting hole are matched with the connecting part of the bolt, and the dismounting hole is matched with the locking part of the bolt;

[0150] The connecting part of the bolt passes through the two second mounting holes and the first mounting hole of any one tail wing, and the locking part of the bolt is clamped into the dismounting hole, so that the probe water surface part is movably connected to the outer cylinder of the probe underwater part.

[0151] Figure 7 The figure shows the probe underwater part and the probe water surface part after being movably connected by the bolt. When the bolt is pulled out, the probe underwater part is automatically separated from the probe water surface part, and freely falls into the monitored water area, which is convenient to operate.

[0152] Embodiment 2

[0153] The embodiment provides a temperature-salinity-depth detection system, which comprises the temperature-salinity-depth probe, the launching device, the data acquisition device and the host computer in the embodiment 1.

[0154] The launching device is used for launching the temperature-salinity-depth probe, and the probe water surface part of the temperature-salinity-depth probe is fixed on the launching device and is in communication connection with the launching device.

[0155] The data acquisition device is in communication connection with the launching device, collects the pressure signal and / or the temperature signal and / or the conductivity signal detected by the temperature-salinity-depth probe through the launching device, and transmits the signals to the host computer.

[0156] The host computer obtains the pressure value of the water area where the probe underwater part is located according to the pressure signal, and / or obtains the temperature value of the water area where the probe underwater part is located according to the temperature signal, and / or obtains the conductivity value and the salinity value of the water area where the probe underwater part is located according to the conductivity signal.

[0157] In the temperature-salinity-depth detection system, the pressure detection module is additionally arranged in the probe underwater part to directly detect the pressure signal of the water area where the probe underwater part is located, and then the corresponding depth value is calculated according to the corresponding relationship between the water pressure and the depth. Because the corresponding relationship between the water pressure and the depth is relatively constant, the accuracy of the calculated depth value can be ensured.

[0158] Figure 8This is a schematic diagram of the temperature, salinity, and depth detection system in this embodiment, in a specific application scenario. This system primarily detects temperature, depth, conductivity, and salinity. The detection system comprises an outdoor section and an indoor section. The outdoor section contains a temperature, salinity, and depth probe 1 and a transmitter 2, while the indoor section comprises a host computer 3 (a PC host computer), a data acquisition device 4 (which can be implemented as a data acquisition box in applications), and a connecting cable (preferably a two-core, thin, enameled wire). In application, the temperature, salinity, and depth detection system can be operated through a human-computer interface. After verifying that the probe is properly installed, the probe is powered on. After the probe is deployed underwater, it continuously detects temperature, pressure, and conductivity, transmitting the continuous data to the data acquisition box, which then forwards it to the PC host computer. The PC calculates the temperature, depth, conductivity, and salinity values ​​based on the received continuous data according to their respective formulas. Each item and its calculated value are displayed on the computer interface, and a graph corresponding to each item versus depth is plotted. The calculated values ​​are then stored. To deploy a temperature, salinity, and depth probe, the probe's surface section is mounted on a launcher and secured. An operator, holding the launcher, stands at the side of the vessel and deploys the probe. Upon removing the latch, the probe's underwater section automatically detaches from the surface section and freely falls into the monitored waters. The temperature, salinity, and depth detection system can be equipped with a GPS receiver module to read longitude and latitude coordinates in real time, locating the system's location.

[0159] like Figure 9 As shown, in the temperature-salinity-depth detection system of this embodiment, the transmitting device 2 includes: a transmitting end contact 21, an external lead socket 22 and a bracket 23;

[0160] The transmitting end contact 21 is electrically connected to the probe end contact of the temperature-salinity-depth probe;

[0161] The external socket 22 is electrically connected to the transmitting terminal contact 21 and the data acquisition device;

[0162] Bracket 23 is used to install and fix the above-water part of the temperature-salinity-depth probe.

[0163] In the application, the transmitting device can be a handheld transmitting gun equipped with three contacts, which are respectively connected to a lead of the cable. The other end of the cable is connected to the data acquisition box, thereby establishing a communication connection between the transmitting device and the data acquisition device. At the same time, the three contacts are connected to the probe end of the water part of the temperature, salinity and depth probe to transfer the detection data of the temperature, salinity and depth probe.

[0164] like Figure 10 As shown, in the temperature-salinity-depth detection system of this embodiment, the data acquisition device includes: a second control module, a probe installation status detection module, a probe power-on control module, and a collection device end communication module;

[0165] The second control module, before the underwater part of the probe is launched, controls the probe installation state detection module to detect the installation and connection state of the CTD probe through the communication connection between the probe end communication module and the data acquisition device end communication module according to the installation state detection instruction received from the host computer, and judges whether the installation of the CTD probe is in place according to the installation detection result signal fed back by the probe installation state detection module, and sends a power-on operation instruction after judging that the installation is in place.

[0166] The probe power-on control module controls the CTD probe to be powered on after receiving the power-on operation instruction.

[0167] In the application, after the data acquisition device is powered on and receives the probe state detection instruction from the host computer, the second control module controls the probe installation state detection module to detect the lead connection state of the probe, and reports the probe state detection result to the host computer. When the installation and connection state of the probe is detected to be normal, the host computer can execute the instruction to power on the probe. After receiving the instruction to power on the probe from the host computer, the second control module operates the probe power-on control module to power on the CTD probe. In the application, a state indication lamp circuit can be added, and the LED indication lamp is displayed according to the power-on display mode. When the probe is launched and data detection is performed, the data acquisition device continuously receives the detection data transmitted by the probe in real time, packages the received data, converts the data through the serial communication conversion circuit, and transmits the data to the host computer, and displays the LED indication lamp according to the communication mode. The data received by the GPS is converted into USB communication mode through the serial communication conversion circuit, and is transmitted to the host computer.

[0168] Optionally, the CTD detection system in the embodiment is used to establish signal transmission between the probe end communication module and the data acquisition device end communication module.

[0169] As shown in Figure 11 The probe installation state detection module in the CTD detection system in the embodiment includes: a first optoelectronic isolation circuit, a second optoelectronic isolation circuit, a first switch driving circuit, a first change-over switch, a differential amplification circuit, and a comparison circuit.

[0170] The first optoelectronic isolation circuit is connected with the control signal output end of the second control module at the input end and connected with the input end of the first switch driving circuit at the output end, transmits the switching control instruction received from the second control module to the first switch driving circuit after optoelectronic isolation processing.

[0171] The first switch driving circuit is connected with the control end of the first change-over switch at the output end, and drives the first change-over switch to switch between information receiving or information sending states according to the received switching control instruction.

[0172] The first conversion switch is communicatively connected to the double-core enameled wire. When it is in the information sending state, the state detection signal generated by the second control module is transmitted to the temperature-salinity-depth probe through the double-core enameled wire. When it is in the information receiving state, the result signal fed back by the temperature-salinity-depth probe after receiving the state detection signal is received is received through the double-core enameled wire.

[0173] A first differential amplifier circuit, whose input end is connected to the output end of the first conversion switch, amplifies the result signal output by the first conversion switch and then outputs it;

[0174] a comparator circuit, wherein a first input terminal is connected to the output terminal of the first differential amplifier circuit, and a second input terminal is connected to the control signal output terminal of the second control module to obtain a status detection signal, and a signal output after the result signal and the status detection signal are compared by the comparator circuit is an installation detection result signal;

[0175] The second photoelectric isolation circuit has its input end connected to the output end of the comparison circuit and its output end connected to the signal input end of the second control module, and is used to transmit the received installation detection result signal to the second control module after photoelectric isolation processing.

[0176] In the application, the second control module controls the conversion control circuit through the optoelectronic isolation circuit, controls the conversion switch through the switch drive circuit, connects the probe connection line to the differential amplifier circuit and amplifies the test signal, and then outputs it through the comparison and judgment circuit, and after optoelectronic isolation, it is sent to the second control module for judgment.

[0177] like Figure 12 As shown, in the temperature, salinity and depth detection system of this embodiment, the probe power-on control module includes: a third photoelectric isolation circuit, a fourth photoelectric isolation circuit, a first gating control circuit, a second gating control circuit, a second switch driving circuit, and a second transfer switch;

[0178] a third photoelectric isolation circuit, whose input end is connected to the control signal output end of the second control module, and whose output end is connected to the input end of the first strobe control circuit, and transmits the power-on operation instruction received from the second control module to the first strobe control circuit after photoelectric isolation processing;

[0179] a fourth photoelectric isolation circuit, whose input end is connected to the control signal output end of the second control module, and whose output end is connected to the input end of the second strobe control circuit, and transmits the power-on operation instruction received from the second control module to the second strobe control circuit after photoelectric isolation processing;

[0180] The output end of the first gating control circuit and the output end of the second gating control circuit are connected to the first input end and the second input end of the second switch driving circuit respectively, and the output end of the second switch driving circuit is connected to the control end of the second transfer switch;

[0181] When the first gating control circuit is in the gating state and the second gating control circuit is in the non-gating state, the power-on operation instruction is transmitted to the second switch driving circuit through the first gating control circuit; when the first gating control circuit is in the non-gating state and the second gating control circuit is in the gating state, the power-on operation instruction is transmitted to the second switch driving circuit through the second gating control circuit;

[0182] The second switch driving circuit controls the second conversion switch to send a first power-on operation state instruction as the power-on control instruction when the power-on operation instruction is received at the first input end thereof, and controls the second conversion switch to send a second power-on operation instruction as the power-on control instruction when the power-on operation instruction is received at the second input end thereof;

[0183] The output end of the second conversion switch is electrically connected with the power-on control module of the temperature-salinity-depth probe, and outputs the power-on control instruction to the power-on control module to control the power-on of the temperature-salinity-depth probe by the dual power supply.

[0184] In the application, if it is required to display data through the display or light up the indicator light, etc., the dual power supply is required at this time. For example, if a control panel with a single-chip microcomputer is provided with a liquid crystal display or other peripheral devices, the control panel needs to be supplied with +5V, and the peripheral devices need to be supplied with another positive or negative stabilized power supply in addition to the +5V (VCC) power supply, such as a -10V power supply (VEE) for providing a driving display contrast adjustment voltage for the liquid crystal display. In this case, the power-on sequence of the power supply is very important. When the power is turned on, the +5V power supply must be connected first, and then the -10V power supply is connected. When the power is turned off, the -10V power supply must be disconnected first, and then the +5V power supply is disconnected. Otherwise, when the +5V logic power supply does not exist or is not completely established, the driving power supply VEE is fed into the logic circuit, which exceeds the voltage resistance range of some components, causing damage to the components. In the embodiment, the power-on sequence control of the power supply can be realized through the above-mentioned dual control mode.

[0185] From Figure 12 It can be seen that the temperature-salinity-depth detection system in the embodiment further comprises a fifth optoelectronic isolation circuit, a communication control circuit, a third switch driving circuit and a third conversion switch.

[0186] The input end of the fifth optoelectronic isolation circuit is connected with the control signal output end of the second control module, and the output end thereof is connected with the input end of the communication control circuit, so as to transmit the communication control signal received from the second control module to the communication control circuit after optoelectronic isolation processing; the communication control signal is delayed after the power-on control instruction is sent;

[0187] a communication control circuit, wherein an output end of the communication control circuit is connected to a control end of the third switch drive circuit, and an output end of the third switch drive circuit is connected to a control end of the third transfer switch. Upon receiving a communication control signal, the communication control circuit controls the third switch drive circuit to drive the third transfer switch to a communication connection state;

[0188] The third conversion switch is electrically connected to the communication module on the acquisition device side. After it enters the communication connection state, it controls the communication module on the acquisition device side to be in the information receiving state to receive the pressure signal and / or temperature signal and / or conductivity signal sent by the communication module on the probe side.

[0189] In applications, a serial communication conversion circuit can also be added. It mainly consists of a photoelectric isolation circuit, an RS-485 conversion circuit, and a buffer input circuit. The working principle is that the transmission data of the temperature, salinity and depth probe is sent to the buffer input circuit. The buffer output data is input to the RS-485 conversion circuit, converted into a TTL digital signal, and then sent to the microcontroller for reading via the photoelectric isolation circuit.

[0190] like Figure 13 As shown in the figure, the serial communication conversion circuit mainly consists of a TTL to RS-485 circuit, a TTL to RS-232 circuit, an optoelectronic isolation circuit, a control conversion circuit, an RS-48 to USB circuit, an RS-232 to USB circuit, and a USB four-to-one circuit. The serial communication conversion circuit converts one RS-485 communication channel to USB communication mode, one RS-232 communication channel to USB communication mode, and then merges the two USB channels into one USB port for connection to the host computer, simplifying the host computer interface settings.

[0191] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A temperature-salinity deep probe, characterized in that: include: The probe comprises an underwater portion, an above-water portion, and a latch, wherein the underwater portion and the above-water portion are movably connected via the latch; the underwater portion and the above-water portion are movably connected and capable of communication; the underwater portion includes a pressure sensor for detecting a pressure signal at a location in the water area where the underwater portion of the probe is located; The above-water part of the probe receives and outputs the pressure signal, and the underwater part of the probe also includes: a probe head shell, an electrical control section shell, a connecting shell, multiple tail wings, a fairing, and a small spool; the pressure sensor is fixed to the inside of the probe head shell through a bracket in the probe head shell, and the signal acquisition end of the pressure sensor protrudes through an opening at a corresponding position of the probe head shell; the front end of the electrical control section shell is connected to the probe head shell, and the rear end is connected to the connecting shell; the multiple tail wings are evenly distributed and fixed on the outer surface of the connecting shell; the fairing is an annular structure, which is fixed to the rear ends of the multiple tail wings; the small spool is fixed on the electrical control section shell or the connecting shell or the fairing, and a double-core enameled wire is wound thereon, and one end of the double-core enameled wire is electrically connected to the circuit board; the above-water part also includes an outer cylinder, a large spool and a probe end contact; the outer cylinder is used to movably connect the underwater part of the probe to its interior; The large spool is built into the bottom of the outer cylinder. The other end of the double-core enameled wire wound on the small spool is fixed to the tail of the large spool and wound on the large spool. The probe end contact is fixed to the tail of the large spool and electrically connected to the other end of the double-core enameled wire.

2. The temperature-salinity deep probe according to claim 1, characterized in that: The underwater part of the probe also includes a temperature detection module and a conductivity detection module; the temperature detection module is used to detect the temperature signal of the water area where the underwater part of the probe is located; the conductivity detection module is used to detect the conductivity signal of the water area where the underwater part of the probe is located; the above-water part of the probe receives the temperature signal and the conductivity signal and outputs them.

3. The temperature-salinity deep probe according to claim 1 or 2, characterized in that: The underwater part of the probe also includes: an A / D analog conversion module, a first control module and a probe end communication module; the input end of the A / D analog conversion module is respectively connected to the output end of the pressure detection and adjustment circuit and / or the temperature detection and adjustment circuit and / or the conductivity detection and adjustment circuit, converts the pressure signal and / or the temperature signal and / or the conductivity signal from analog to digital and transmits it to the first control module; the first control module is connected to the output end of the A / D analog conversion module, packages the pressure signal and / or the temperature signal and / or the conductivity signal converted into digital quantities, and transmits them to the remote host computer via the probe end communication module; and the first control module is also used to generate the first control instruction and send it to the sine wave generation and power amplifier circuit.

4. The temperature-salinity deep probe according to claim 3, characterized in that: The probe end communication module is also used to receive and output various control instructions from the remote end.

5. The temperature-salinity deep probe according to claim 4, characterized in that: The underwater part of the probe further includes a power-on control module, which is used to receive a remote power-on control instruction through the probe-end communication module and power on the temperature-salinity-depth probe according to the power-on control instruction.

6. The temperature-salinity deep probe according to claim 5, characterized in that: The power-on control module includes: a power-on control circuit, a switch circuit, a rectifier circuit, a delay conversion control circuit, a power-on / communication conversion control circuit, and a power-on / communication conversion switch; the power-on control circuit controls the switching circuit to be turned on according to the power-on control instruction; the switch circuit has an input end connected to the output end of the power supply provided in the temperature, salinity and depth probe, and an output end connected to the input end of the rectifier circuit. When the switch circuit is turned on, the output voltage of the power supply is rectified by the output end of the rectifier circuit and then output; the power-on / communication conversion switch has a first input end connected to the output end of the power supply provided in the temperature, salinity and depth probe, a second input end connected to the output end of the power-on / communication conversion control circuit, and an input end of the power-on / communication conversion control circuit is connected to the control signal output end of the delay conversion control circuit; after the delay reaches a preset time length, the delay conversion control circuit outputs a control instruction through its control signal output end to control the power-on / communication conversion control circuit and switch the power-on / communication conversion switch to a communication state.

7. A temperature-salinity-depth detection system, characterized in that: include: The temperature-salinity-depth probe, transmitter, data acquisition device, and host computer according to any one of claims 1 to 6; the transmitter is used to launch the temperature-salinity-depth probe, and the above-water part of the temperature-salinity-depth probe is fixed on the transmitter and is communicatively connected to the transmitter; the data acquisition device is communicatively connected to the transmitter, and collects the pressure signal and / or temperature signal and / or conductivity signal detected by the temperature-salinity-depth probe through the transmitter, and transmits it to the host computer; the host computer obtains the pressure value of the water area where the underwater part of the temperature-salinity-depth probe is located according to the pressure signal, and / or obtains the temperature value of the water area where the underwater part of the temperature-salinity-depth probe is located according to the temperature signal, and / or obtains the conductivity value and salinity value of the water area where the underwater part of the temperature-salinity-depth probe is located according to the conductivity signal.

8. The temperature-salinity-depth detection system according to claim 7, characterized in that: The data acquisition device includes: a second control module, a probe installation status detection module, a probe power-on control module, and an acquisition device-side communication module; before the underwater part of the probe is deployed, the second control module controls the probe installation status detection module to establish a communication connection with the temperature, salinity, and depth probe through the acquisition device-side communication module according to the installation status detection instruction received from the host computer, detects the installation and connection status of the temperature, salinity, and depth probe, and determines whether the temperature, salinity, and depth probe is installed in place according to the installation detection result signal fed back by the probe installation status detection module, and issues a power-on operation instruction after determining that the installation is in place; the probe power-on control module controls the temperature, salinity, and depth probe to be powered on after receiving the power-on operation instruction.

9. The temperature-salinity-depth detection system according to claim 8, characterized in that: The probe installation status detection module includes: a first photoelectric isolation circuit, a second photoelectric isolation circuit, a first switch driving circuit, a first conversion switch, a differential amplifier circuit, and a comparison circuit; the first photoelectric isolation circuit, whose input end is connected to the control signal output end of the second control module, and whose output end is connected to the input end of the first switch driving circuit, transmits the switching control instruction received from the second control module to the first switch driving circuit after photoelectric isolation processing; the first switch driving circuit, whose output end is connected to the control end of the first conversion switch, drives the first conversion switch to switch between information receiving or information sending state according to the received switching control instruction; the first conversion switch is communicatively connected to the dual-core enameled wire, and when it is in the information sending state, transmits the status detection signal generated by the second control module to the temperature-salinity-depth probe through the dual-core enameled wire, and its When in the information receiving state, the result signal fed back by the temperature, salinity and depth probe after receiving the status detection signal is received through the dual-core enameled wire; the first differential amplifier circuit, whose input end is connected to the output end of the first conversion switch, outputs the result signal output by the first conversion switch after amplification processing; the comparison circuit, whose first input end is connected to the output end of the first differential amplifier circuit, and whose second input end is connected to the control signal output end of the second control module to obtain the status detection signal, the result signal and the status detection signal are compared by the comparison circuit. The signal output is the installation detection result signal; the second photoelectric isolation circuit, whose input end is connected to the output end of the comparison circuit, and whose output end is connected to the signal input end of the second control module, is used to transmit the received installation detection result signal to the second control module after photoelectric isolation processing.

Images