A temperature, salinity, and depth detector

Abstract

This application provides a temperature, salinity, and depth (TDM) sounder, which includes a probe, a first float, and a data acquisition unit. The probe is used for underwater detection. The first float houses a first relay module, which is connected to the probe via a first signal line to receive and process electrical signals emitted by the probe. The data acquisition unit is mounted on a ship's hull, and the first relay module is also connected to the data acquisition unit via a second signal line to send electrical signals to the data acquisition unit. The TDM sounder provided by this application can solve the technical problem of severe signal attenuation and distortion when detecting seawater data.

Description

Technical Field

[0001] This application relates to the field of marine exploration technology, and in particular to a temperature, salinity, and depth sounder. Background Technology

[0002] Currently, drop-in CTD (conductivity, temperature, and depth) sounders are commonly used detection devices for ships to quickly acquire data such as seawater temperature, conductivity, and depth during navigation. Existing drop-in CTD sounders mainly consist of a data acquisition unit and a probe. The data acquisition unit is fixed on the ship and connected to the probe via a signal line. During detection, the probe is deployed into the sea, acquires seawater data through corresponding sensors, and transmits the seawater data back to the data acquisition unit on the ship via the signal line. After the detection is completed, the data line is cut, and the probe can be discarded.

[0003] However, as the speed of ships and the depth of seawater exploration increase, the signal transmission distance between the probe and the data acquisition device also increases. In addition, the interference caused by the marine environment and relative motion leads to more severe signal attenuation and distortion, which in turn affects the accuracy of the detection signal. Summary of the Invention

[0004] This application provides a temperature, salinity, and depth sounder to solve the technical problem of severe signal attenuation and distortion when detecting seawater data.

[0005] To achieve the above objectives, the temperature, salinity, and depth sounder proposed in this application includes a probe, a first float, and a data acquisition device. The probe is used for underwater detection. The first float is equipped with a first relay module, which is connected to the probe via a first signal line to receive and process electrical signals emitted by the probe. The data acquisition device is used to be installed on the hull. The first relay module is also connected to the data acquisition device via a second signal line to send electrical signals to the data acquisition device.

[0006] Optionally, in one embodiment, the first float is provided with a first spool and a second spool, the first signal line is at least partially wound around the first spool, and the second spool is at least partially wound around the second spool.

[0007] Optionally, in one embodiment, the probe is provided with a third spool, and the first signal line is at least partially wound around the third spool, and the winding length of the first signal line on the third spool is greater than the winding length of the first signal line on the first spool.

[0008] And / or, the temperature, salinity, and depth detector further includes a delivery tube for mounting on the hull, and the delivery tube contains a fourth spool, the second signal line is at least partially wound around the fourth spool, and the winding length of the second signal line on the fourth spool is greater than the winding length of the second signal line on the fourth spool.

[0009] Optionally, in one embodiment, the first float is provided with a first spool compartment, a second spool compartment, and a first sealed compartment located between the first spool compartment and the second spool compartment; the first spool is disposed in the first spool compartment, the second spool is disposed in the second spool compartment, and the first relay module is disposed in the first sealed compartment.

[0010] Optionally, in one embodiment, the first float includes a first shell and a second shell, the first shell having a first spool compartment and the second shell having a second spool compartment, the first shell and the second shell being spliced ​​together to form the first sealed chamber, and a sealing ring being sandwiched between the first shell and the second shell.

[0011] Optionally, in one embodiment, both the first housing and the second housing are conical in shape, and the first housing has a first conical bottom end and a first conical top end, and the second housing has a second conical bottom end and a second conical top end; the first conical bottom end and the second conical bottom end are connected, and the first conical top end and the second conical top end respectively form the two ends of the first float.

[0012] Optionally, in one embodiment, the first spool compartment is provided with a first cover, the first cover being provided with a first threading hole and a first wire passage groove; the first threading hole is connected to the first spool compartment to allow the first signal line to pass through the first spool compartment; the first wire passage groove is connected to the first spool compartment and extends from the first threading hole to the outer peripheral wall of the first cover, and a first limiting member is also provided in the first wire passage groove, the first limiting member being used to restrict the first signal line from sliding from the first threading hole into the first wire passage groove;

[0013] And / or, the second spool compartment is provided with a second cover, the second cover being provided with a second threading hole and a second wire passage groove; the second threading hole communicates with the second spool compartment to allow the second signal line to pass through the second spool compartment; the second wire passage groove communicates with the second spool compartment, and the wire passage groove extends from the second threading hole to the outer peripheral wall of the second cover, and a second limiting member is also provided in the second wire passage groove, the second limiting member being used to restrict the second signal line from sliding from the second threading hole into the second wire passage groove.

[0014] Optionally, in one embodiment, the first float is provided with a first sealed chamber, and the first relay module is disposed in the first sealed chamber; the chamber wall of the first sealed chamber is provided with a water inlet hole, and a sealing plug is provided in the water inlet hole; the first sealed chamber is also provided with a motor and a transmission assembly, the motor is communicatively connected to the first relay module, and the motor is connected to the sealing plug through the transmission assembly, so that the motor can pull the sealing plug out of the water inlet hole through the transmission assembly.

[0015] Optionally, in one embodiment, the first relay module includes at least one of a signal amplification module, a signal shaping module, a signal regeneration module, and a noise suppression module.

[0016] Optionally, in one embodiment, the temperature, salinity, and depth detector further includes at least one second float, which is connected between the first float and the probe, and each second float is provided with a second relay module for receiving and transmitting signals.

[0017] The temperature, salinity, and depth (TDT) sounder provided in this application uses a first float between a probe and a data acquisition unit. The first float is connected to the probe via a first signal line and to the data acquisition unit via a second signal line. During detection, the first float and probe are deployed into the sea. The probe sinks into the sea to collect seawater data, while the first float either floats on the surface or at a position higher than the probe underwater. After detecting seawater data, the probe first transmits the data signal to a first relay module within the first float via the first signal line. The first relay module processes the data signal and then transmits it to the data acquisition unit on the ship via the second signal line, thus completing the detection and acquisition of seawater data.

[0018] Understandably, compared to schemes where data signals are directly transmitted from the probe to the data acquisition unit, the data signals in this application's temperature, salinity, and depth (TSD) probe are processed by the first relay module after being transmitted from the probe, and then transmitted to the data acquisition unit. This reduces the attenuation and distortion of the data signals, ensuring the accuracy of the detection signals. Furthermore, the TSD probe of this application has a simple structure, and its cost is relatively low when used as a disposable TSD probe (i.e., the probe and the first float are discarded after detection). Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of one embodiment of the temperature, salinity, and depth detector of this application during detection;

[0021] Figure 2 This is a schematic diagram of the structure of one embodiment of the probe in the temperature, salinity, and depth detector of this application;

[0022] Figure 3 This is a schematic diagram of the structure of an embodiment of the first float in the temperature, salinity, and depth detector of this application;

[0023] Figure 4 This is a partially exploded view of an embodiment of the first float in the temperature, salinity, and depth detector of this application;

[0024] Figure 5 This is a partial structural diagram of the temperature, salinity, and depth detector of this application in a previous embodiment before detection;

[0025] Figure 6 This is a schematic diagram of another embodiment of the temperature, salinity, and depth detector of this application during detection;

[0026] Figure 7 This is a circuit diagram of an embodiment of the data receiving module in the first relay module;

[0027] Figure 8 A circuit diagram of an embodiment of the data processing module in the first relay module;

[0028] Figure 9 A circuit diagram of an embodiment of the data transmission module in the first relay module;

[0029] Figure 10 This is a schematic diagram of the power supply circuit between the battery and the first relay module.

[0030] Explanation of icon numbers:

[0031]

[0032] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] This application provides a temperature, salinity, and depth sounder to solve the problem of severe signal attenuation and distortion when detecting seawater data. The following description will be provided in conjunction with the accompanying drawings.

[0035] In the embodiments of this application, such as Figure 1 As shown, the temperature, salinity, and depth detector 100 includes a probe 10, a first float 20, and a data acquisition unit 40.

[0036] The probe 10 is used for underwater detection. Specifically, in this embodiment, as follows: Figure 2 As shown, the probe 10 mainly includes a housing 11 and a sensor assembly 13, a circuit board 14, and a third spool 12 installed inside the housing 11. Referring again to Figure 5, the head of the housing 11 is elliptical, and the tail is equipped with multiple tail fins, which reduces the drag of the probe 10 during underwater movement. Figure 2 The outer shell 11 is hollow and divided into a detection chamber 111, a third spindle chamber 113, and a second sealed chamber 112 located between the detection chamber 111 and the third spindle chamber 113.

[0037] The detection chamber 111 is located at the head of the probe 10, and the sensor assembly 13 is disposed inside the detection chamber 111. The sensor assembly 13 may include temperature sensors, conductivity sensors, pressure sensors, etc. The specific composition and structure of the sensor assembly 13 can be configured according to the seawater data to be detected. The bulkhead of the detection chamber 111 is provided with flow holes (not shown) to allow seawater to flow into the detection chamber 111 and come into contact with the sensor assembly 13, so that the sensor assembly 13 can detect information such as the temperature, conductivity, and pressure of the seawater.

[0038] The circuit board 14 is located inside the second sealed chamber 112 to prevent it from being short-circuited or damaged by water immersion. The circuit board 14 is connected to the sensor assembly 13 inside the detection chamber 111. For example, the circuit board 14 can be inserted into the detection chamber 111 and connected to the sensor assembly 13 through an electrical wire. Then, the sensor assembly 13 can transmit the sensing signal to the circuit board 14. The circuit board 14 amplifies, filters, digitizes and other processes the sensing signal, and then transmits the processed data to the first relay module 231 inside the first float 20 through the first signal line 30.

[0039] Of course, a power supply (such as a battery) can also be installed in the second sealed compartment 112 to provide power to the circuit board 14 and the sensor assembly 13.

[0040] The third spool compartment 113 houses a third spool 12. In this application, the first signal line 30 is partially wound around the third spool 12. One end of the first signal line 30 passes through the second sealed compartment 112 and connects to the circuit board 14, while the other end connects to the first relay module 231 inside the first float 20. It should be noted that the holes through which the first signal line 30 and the electrical wires connecting the sensor assembly 13 and the circuit board 14 pass can be sealed with sealant to ensure the airtightness of the second sealed compartment 112 and prevent seawater from entering the second sealed compartment 112 during the detection process.

[0041] You can refer to this. Figure 3 or Figure 4 The first float 20 is equipped with a first relay module 231, which is connected to the probe 10 via a first signal line 30 to receive and process electrical signals emitted by the probe 10. Specifically, in this application, the first float 20 is hollow so that it can float on the sea surface or at a position higher than the probe 10 underwater during detection. The first relay module 231 is disposed within the first float 20 and mainly includes a data receiving module, a data processing module, and a data transmitting module.

[0042] The signal input terminal of the data receiving module is connected to the circuit board 14 inside the probe 10 via the first signal line 30 to receive signals from the probe, while the signal output terminal of the data receiving module is connected to the data processing module. Specifically, as shown... Figure 7 As shown, the data receiving module includes a data communication chip MAX485ESA. The signal input terminal of the data communication chip MAX485ESA is connected to the first signal line 30, and the data communication chip MAX485ESA can convert the received probe differential data into a serial port signal that can be recognized by the microcontroller; the serial output terminal of the data communication chip MAX485ESA is connected to the data processing module.

[0043] The data processing module performs preliminary filtering and processing on the signal sent from the data receiving module, extracts the measurement data from probe 10, and sends it to the data sending module. Specifically, for example... Figure 8 As shown, the data processing module includes an ATMEG162 microcontroller, which can perform preliminary filtering and processing on the serial port signal sent by the data receiving module, parse out the probe's measurement data, and send it to the data sending module.

[0044] The signal input terminal of the data transmission module is connected to the data processing module, and the signal output terminal is connected to the data acquisition unit 40 on the hull 200 via the second signal line 50 to transmit the processed signal to the data acquisition unit 40. Specifically, as shown... Figure 9As shown, the data transmission module includes a data communication chip MAX485ESA. The serial input terminal of the MAX485ESA data communication chip is connected to the microcontroller's serial port UART1 of the data processing module. The MAX485ESA data communication chip can convert the serial data sent from the microcontroller of the data processing circuit into a differential signal suitable for transmission on the second signal line 50. The output terminal of the MAX485ESA data communication chip is connected to the second signal line 50.

[0045] In addition, such as Figure 3 or Figure 4 As shown, the first float also contains a battery 233, which is used to power the first relay module. Specifically, as shown... Figure 10 As shown, the power supply circuit between battery 233 and the first relay module 231 includes a water inlet switch, a power switch transistor, a resistor R9, and capacitors E1, E2, C7, and C8. The input terminal of the power switch transistor is connected to one end of battery 233 and one end of resistor R9, respectively. The output terminal of the power switch transistor is connected to ground GND. The control terminal of the power switch transistor is connected to the other end of the water inlet switch and resistor R9, respectively. The input terminal of the LM1117MP is connected to one end of battery and one end of capacitors E1 and C8, respectively. The output terminal of the LM1117MP is connected to one end of capacitors E2 and C7, respectively.

[0046] In one embodiment, the data receiving module and the data sending module are made of the same chip, and the data processing module is formed by a microcontroller. This not only simplifies the structure but also reduces costs.

[0047] like Figure 1 As shown, the data acquisition unit 40 is fixed to the hull 200. Its main function is to process, convert, and store received data signals. For example, it can filter, amplify, and digitize the data signals transmitted from the first relay module 231 to ensure data accuracy and reliability. Simultaneously, the data acquisition unit 40 can convert data signals into specific formats as needed for subsequent data transmission and analysis. Furthermore, the data acquisition unit 40 can store the processed data in an internal storage medium for subsequent data playback and analysis.

[0048] like Figure 1 and Figure 5 As shown, the temperature, salinity and depth detector 100 of this application also includes a delivery cylinder 60. The interior of the delivery cylinder 60 is hollow, and the top of the delivery cylinder 60 is provided with a fourth spool 61 and a conductive contact (not shown). The bottom of the delivery cylinder 60 is provided with a delivery opening 62. The second signal line 50 is also partially wound on the fourth spool 61 and electrically connected to the conductive contact. The conductive contact is then electrically connected to the data acquisition unit 40.

[0049] Before detection, the probe 10 and the first float 20 are installed inside the delivery tube 60. The probe 10 is fixed inside the delivery tube 60 by a pin 80. The maximum outer diameter of the first float 20 can be matched with the inner diameter of the delivery tube 60 so that the first float 20 can be just locked inside the delivery tube 60. Before detection, the delivery opening 62 can be covered with a cover to protect the probe 10 and the first float 20.

[0050] When exploration is required, the launch opening 62 can be opened and both the probe 10 and the first float 20 can be launched into the sea. The probe 10 will dive into the sea and move towards the seabed, while the first float 20 will float on the sea surface or float in a shallower position.

[0051] You can refer to this. Figure 1 During the descent, the probe 10 continuously detects seawater information. At the same time, the probe 10 first transmits the data signal to the first relay module 231 in the first float 20 through the first signal line 30. The first relay module 231 processes the data signal and then transmits it to the data acquisition unit 40 on the hull 200 through the second signal line 50. In this way, the detection and acquisition of seawater data are completed.

[0052] It is understandable that, compared to the scheme where the data signal is directly transmitted from the probe 10 to the data acquisition unit 40, the data signal in the temperature, salinity and depth detector 100 of this application will be processed by the first relay module 231 after being transmitted from the probe 10, and then transmitted to the data acquisition unit 40. This can reduce the attenuation and distortion of the data signal and ensure the accuracy of the detection signal.

[0053] In addition, because the first float 20 in the temperature, salinity and depth detector 100 of this application has a simple structure and low cost, it is also relatively inexpensive when used as a discardable temperature, salinity and depth detector 100 (Note: the discardable temperature, salinity and depth detector 100 discards the probe 10 and the first float 20 after the detection is completed).

[0054] Optionally, in one embodiment, as shown in Figure 3 or Figure 4 As shown, the first float 20 is provided with a first spool 211 and a second spool 221. Before detection, that is, when the first float 20 is still in the release tube 60, the first signal line 30 is at least partially wrapped around the first spool 211 and the second spool 221 is at least partially wrapped around the second spool 221.

[0055] In this embodiment, it is understood that when the first float 20 and the probe 10 are deployed into the sea together, there may be a difference in their descent speeds. In this case, the first signal line 30 may break due to the speed difference between the first float 20 and the probe 10. Therefore, in this embodiment, a first spool 211 is also provided inside the first float 20, and the first signal line 30 is at least partially wound around the first spool 211. When the speed difference between the first float 20 and the probe 10 causes the distance between them to gradually increase, the first signal line 30 can be unwound from the first spool 211 to accommodate the gradually increasing distance between the first float 20 and the probe 10, thus preventing the first signal line 30 from breaking under stress.

[0056] Furthermore, when the first float 20 is floating on the sea surface or submerged in a shallow area, the connection between the second signal line 50 and the first relay module 231 may break due to the impact of large waves and currents in the sea. Therefore, in this embodiment, a second spool 221 is also provided inside the first float 20, and the second signal line 50 is at least partially wound on the second spool 221. When the first float 20 experiences significant movement or oscillation due to the impact or movement of waves, the second signal line 50 can be released from the second spool 221, thus preventing the second signal line 50 from breaking off from the first relay module 231 due to tension.

[0057] It should be noted that the winding length of the first signal line 30 on the first spool 211 and the winding length of the second signal line 50 on the second spool 221 can be designed according to the actual situation. The specific winding length is not limited here, as long as the breakage of the first signal line 30 and the second signal line 50 can be avoided.

[0058] Optionally, in one embodiment, please combine Figure 1 and 2 The probe 10 is equipped with a third spool 12, and the first signal line 30 is at least partially wound around the third spool 12. The winding length of the first signal line 30 on the third spool 12 is greater than the winding length of the first signal line 30 on the first spool 211. As the probe 10 falls into the sea and gradually sinks, the first signal line 30 gradually loosens from the third spool 12 to accommodate the gradually increasing gap between the probe 10 and the first float 20.

[0059] Furthermore, it can be understood in this embodiment that, because the winding length of the first signal line 30 on the third spool 12 is greater than the winding length of the first signal line 30 on the first spool 211, when the probe 10 sinks and the distance between the probe 10 and the first float 20 gradually increases, it is mainly the part of the first signal line 30 wound on the third spool 12 that loosens, while the part of the first signal line 30 wound on the first spool 211 serves as an auxiliary. This can prevent the first signal line 30 from being pulled or even broken by the circuit board 14 due to the probe 10 sinking too quickly, and it can also make the first float 20 float more stably on the sea surface, avoiding the first float 20 itself from shaking violently and interfering with the data signal.

[0060] Optionally, in one embodiment, please combine Figure 1 , Figure 3 and Figure 5 The launch tube 60 is equipped with a fourth spool 61. The second signal line 50 is at least partially wound around the fourth spool 61, and the winding length of the second signal line 50 on the fourth spool 61 is greater than the winding length of the second signal line 50 on the fourth spool 61. When the hull 200, carrying the data acquisition device 40 and the launch tube 60, moves forward relative to the first float 20, the second signal line 50 gradually unwinds from the fourth spool 61 to accommodate the gradually increasing distance between the hull 200 and the first float 20.

[0061] Furthermore, it can be understood in this embodiment that, because the winding length of the first signal line 30 on the third spool 12 is greater than the winding length of the first signal line 30 on the first spool 211, during the forward navigation of the hull 200, the portion of the second signal line 50 on the fourth spool 61 is mainly loosened, while the portion of the second signal line 50 wound on the second spool 221 serves as an auxiliary. This can prevent the second signal line 50 from disconnecting from the data acquisition unit 40 due to the excessive speed of the hull 200, and can also prevent the hull 20 from moving at high speed with the first float 20, ensuring that the first float 20 can float more stably on the sea surface or in a shallower position during the detection process, thereby ensuring less signal attenuation and distortion.

[0062] Optionally, in one embodiment, such as Figure 3 and Figure 4As shown, the first float 20 contains a first spool compartment 21, a second spool compartment 22, and a first sealed compartment 23 located between the first spool compartment 21 and the second spool compartment 22. A first spool 211 is located within the first spool compartment 21, and the first spool compartment 21 has a first through hole 2131 through which a first signal line 30 extends out of the first spool compartment 21. A second spool 221 is located within the second spool compartment 22, and the second spool compartment 22 has a second through hole 2231 through which a second signal line 50 extends out of the second spool compartment 22. A first relay module 231 is located within the first sealed compartment 23, which prevents the first relay module 231 from being wetted by seawater and ensures the stable operation of the first relay module 231.

[0063] It is understood that in this embodiment, by dividing the first float 20 into a first spool compartment 21, a first sealed compartment 23, and a second spool compartment 22, it is possible to ensure that the first relay module 231 can be smoothly connected to the probe 10 and the data acquisition unit 40 through the first signal line 30 and the second signal line 50, and also to prevent the first relay module 231 from being soaked in seawater.

[0064] It should be noted that because the first spool compartment 21 has a first threading hole 2131 for the first signal line 30 to pass through, and the second spool compartment 22 has a second threading hole 2231 for the second signal line 50 to pass through, seawater can enter the first spool compartment 21 through the first threading hole 2131 and the second spool compartment 22 through the second threading hole 2231. Therefore, to prevent seawater from entering the first sealed compartment 23, the threading hole through which the first signal line 30 passes into the first sealed compartment 23 can be sealed with adhesive, and the threading hole through which the second signal line 50 passes into the first sealed compartment 23 can also be sealed with adhesive.

[0065] Furthermore, in one embodiment, please refer to... Figure 3 and Figure 4 The first float 20 includes a first shell 24 and a second shell 25. The first shell 24 is provided with a first spool compartment 21, and the second shell 25 is provided with a second spool compartment 22. The first shell 24 and the second shell 25 are spliced ​​together to form a first sealed compartment 23, and a sealing ring 26 is sandwiched between the first shell 24 and the second shell 25.

[0066] Specifically, in this embodiment, the first housing 24 and the second housing 25 are identical in structure, size, and material, which reduces the number of molds required and lowers production costs. The first housing 24 is hollow, and a partition separates the first spool compartment 21 and half of the first sealed compartment. The first spool compartment 21 has a first mounting port 212 on the side opposite to the second spool compartment 22. The first mounting port 212 is used to insert the first spool 211 into the first spool compartment 21, and a first cover 213 is provided inside the first mounting port 212. The first cover 213 has a first threading hole 2131 for the first signal line 30 to pass through.

[0067] Similarly, the second housing 25 is hollow, and the second housing 25 is divided into a second spool compartment 22 and half of the first sealed compartment by a partition. The second spool compartment 22 has a second mounting port 222 on the side opposite to the second spool compartment 22. The second mounting port 222 is used to insert the second spool 221 into the second spool compartment 22. The second mounting port 222 is provided with a second cover 223. The second cover 223 is provided with a second wire hole 2231 for the second signal line 50 to pass through.

[0068] When the first shell 24 and the second shell 25 are joined together, they together enclose the first sealed chamber 23. The first spool chamber 21 and the second spool chamber 22 are located on both sides of the first sealed chamber 23. The first shell 24 and the second shell 25 are connected to each other by threaded connectors, and a sealing ring 26 is provided between the first shell 24 and the second shell 25. The sealing ring 26 is pressed between the first shell 24 and the second shell 25, which ensures the airtightness of the first sealed chamber 23 and prevents seawater from entering the first sealed chamber 23.

[0069] It is understood that by splicing the first float 20 from the first housing 24 and the second housing 25, this embodiment can not only simplify the structure, but also facilitate the installation of the first spool 211, the second spool 221 and the first relay module 231.

[0070] Optionally, in one embodiment, such as Figure 4 As shown, the first housing 24 and the second housing 25 are both conical in shape. More specifically, the first housing 24 and the second housing 25 are both conical in shape. The first housing 24 has a first conical bottom end 241 and a first conical top end 242, and the second housing 25 has a second conical bottom end 251 and a second conical top end 252. During assembly, the first conical bottom end 241 and the second conical bottom end 251 are connected, and the first conical top end 242 and the second conical top end 252 respectively form the two ends of the first float 20.

[0071] It is understandable that, since both the first shell 24 and the second shell 25 are conical in shape, after the first shell 24 and the second shell 25 are assembled, the space inside the first sealed compartment 23 occupies a larger proportion, while the space inside the first spool compartment 21 and the second spool compartment 22 occupies a smaller proportion. This can reduce the amount of water entering the first float 20 and ensure that the first float 20 has sufficient buoyancy to float on the sea surface.

[0072] In addition, since both the first shell 24 and the second shell 25 are conical in shape, after the first shell 24 and the second shell 25 are assembled, the first float 20 is larger in the middle and smaller at both ends. This makes it easier for the first float 20 to maintain balance on the water surface and less likely to roll or capsize, thereby improving stability and preventing the first float 20 from shaking violently and interfering with signal transmission.

[0073] Of course, in order to further stabilize the first float 20, in other embodiments, such as Figure 3 or Figure 4 As shown, a counterweight 232 is also provided in the first sealed chamber 23. The counterweight 232 is located close to the first spool chamber 21, which can prevent the first float 20 from rolling or overturning.

[0074] Optionally, in one embodiment, such as Figure 3 and Figure 4 As shown, the first spool compartment 21 is provided with a first mounting port 212 for inserting the first spool 211 into the first spool compartment 21. A first cover 213 is provided inside the first mounting port 212, and the first cover 213 is provided with a first threading hole 2131 and a first wire passage groove 2132. The first threading hole 2131 communicates with the first spool compartment 21 to allow the first signal line 30 to pass through the first spool compartment 21. The first wire passage groove 2132 communicates with the first spool compartment 21 and extends from the first threading hole 2131 to the outer peripheral wall of the first cover 213. A first limiting member 2133 is also provided inside the first wire passage groove 2132 to restrict the first signal line 30 from sliding from the threading hole into the first wire passage groove 2132.

[0075] Specifically, since the two ends of the first signal line 30 are fixedly connected to the probe 10 and the first relay module 231 respectively, a first wire-passing groove 2132 is provided on the first cover 213 to facilitate the installation of the first cover 213 into the first mounting port 212. During assembly, the first wire-passing groove 2132 of the first cover 213 is aligned with the first signal line 30, so that the first signal line 30 passes through the wire-passing groove and is located in the first wire-passing hole 2131. Then, the first cover 213 is fixed in the first mounting port 212, so that the first cover 213 covers the first mounting port 212. Finally, a first limiting member 2133 is provided in the first wire-passing groove 2132. In this embodiment, the first limiting member 2133 is a sealant filled in the first wire-passing groove 2132, or the first limiting member 2133 can also be other structures (such as a limiting strip that is interference-fitted into the first wire-passing groove 2132). This can prevent the first signal line 30 from being stuck in the first wire-passing groove 2132.

[0076] It is understandable that by setting the first cover 213, and the first cover 213 having a first wire hole 2131 and a first wire groove 2132, it is possible to prevent foreign objects from adhering to the first spool 211 and thus affecting the loosening of the first signal line 30. It also makes the installation of the first cover 213 more convenient. Furthermore, during use, the first wire groove 2132, which makes the installation of the first cover 213 convenient, will not cause the first signal line 30 to be stuck.

[0077] And / or, the second spool compartment 22 is provided with a second mounting port 222, which is used for inserting the second spool 221 into the second spool compartment 22. The second mounting port 222 is provided with a second cover 223, which is provided with a second threading hole 2231 and a second wire passage groove 2232. The second threading hole 2231 communicates with the second spool compartment 22 to allow the second signal line 50 to pass through the second spool compartment 22. The second wire passage groove 2232 communicates with the second spool compartment 22 and extends from the second threading hole 2231 to the outer peripheral wall of the second cover 223. The second wire passage groove 2232 is also provided with a second limiting member 2233, which is used to restrict the second signal line 50 from sliding from the threading hole into the second wire passage groove 2232.

[0078] Specifically, since the two ends of the second signal line 50 are fixedly connected to the data acquisition unit 40 and the first relay module 231 respectively, a second cable guide groove 2232 is provided on the second cover 223 to facilitate the installation of the second cover 223 into the second mounting port 222. During assembly, the second cable guide groove 2232 of the second cover 223 is aligned with the second signal line 50, so that the second signal line 50 passes through the cable guide groove and is located in the second cable hole 2231. Then, the second cover 223 is fixed in the second mounting port 222, so that the second cover 223 covers the second mounting port 222. Finally, a second limiting member 2233 is provided in the second wire guide groove 2232. In this embodiment, the second limiting member 2233 is also a sealant filled in the second wire guide groove 2232. Alternatively, the second limiting member 2233 can be other structures (such as a limiting strip that is interference-fitted into the second wire guide groove 2232). This can prevent the second signal line 50 from being stuck in the second wire guide groove 2232.

[0079] It is understandable that by setting a second cover 223, and the second cover 223 having a second wire hole 2231 and a second wire groove 2232, it is possible to prevent foreign objects from adhering to the second spool 221 and thus affecting the loosening of the second signal line 50. It also makes the installation of the second cover 223 more convenient. Furthermore, during use, the second wire groove 2232, which makes the installation of the second cover 223 convenient, will not cause the second signal line 50 to be stuck.

[0080] Alternatively, in another embodiment, such as Figure 4As shown, the first sealed chamber 23 has a water inlet hole 234 on its wall. The size and shape of the water inlet hole 234 can be designed according to actual conditions. For example, the water inlet hole 234 can be a round hole, and its inner diameter (diameter) can be 5 mm, 8 mm, 10 mm, 12 mm, etc. A sealing plug 27 is installed inside the water inlet hole 234. The sealing plug 27 can be made of elastically deformable rubber. Before and during the detection process, the sealing plug 27 is placed inside the water inlet hole 234 to seal it and prevent seawater from entering the first sealed chamber 23. The first sealed chamber 23 also has a motor 28 and a transmission assembly 29. The motor 28 has a drive module for communication with the first relay module 231, and the motor 28 is connected to the sealing plug 27 through the transmission assembly 29. Specifically, the drive assembly can include a lead screw 292 and a slider 291 slidably mounted on the lead screw 292. The slider 291 is fixedly connected to the sealing plug 27. After the detection is completed, a self-destruct signal can be sent from the first relay module 231 to the drive module in the motor 28, causing the motor 28 to drive the lead screw 292 to rotate. The rotation of the lead screw 292 further drives the slider 291 to slide. At this time, the slider 291 can move relative to the water inlet 234 with the sealing plug 27, and then the sealing plug 27 can be pulled out from the water inlet 234, allowing seawater to enter the first sealed chamber 23. The first relay module 231 is destroyed by the immersion in seawater, ensuring the security of the measurement data and the concealment of the measurement.

[0081] Of course, in addition to being composed of "lead screw 292 and slider 291", the transmission assembly can also be composed of "gear and rack". For example, the gear is connected to the output shaft of the motor 28, the rack meshes with the gear, and the rack is fixedly connected to the sealing plug 27. When the motor 28 drives the gear to rotate, the gear drives the rack to slide, and the sliding rack pulls the sealing plug 27 out of the water inlet hole 234. Alternatively, the transmission assembly 29 can also be composed of "hinge shaft and connecting rod". One end of the connecting rod is connected to the motor 28 through the hinge shaft, and the other end is fixed to the sealing plug 27. When the motor 28 drives the connecting rod to rotate, the connecting rod drives the sealing plug 27 to be pulled out of the water inlet hole 234.

[0082] In addition, the second sealing chamber 112 of the probe 10 may also be equipped with a water inlet, a sealing plug installed in the water inlet 234, and a motor for pulling the sealing plug out of the water inlet, so as to destroy the data in time after the detection is completed. For the specific structural design, please refer to the previous introduction on "the first sealing chamber 23 is equipped with a water inlet 234 and a sealing plug 27", which will not be repeated here.

[0083] Optionally, in one embodiment, the first relay module 231 further includes at least one of a signal amplification module, a signal shaping module, a signal regeneration module, and a noise suppression module. The signal amplification module amplifies the signal, increasing its energy and reducing attenuation. The signal shaping module corrects signal distortion, ensuring signal integrity. The signal regeneration module regenerates the original signal from the received electrical signal, reducing signal distortion caused by long-distance transmission. The noise suppression module (e.g., a filter) reduces the impact of noise on the signal. By including at least one of these components in the first relay module 231, this embodiment further reduces signal attenuation and distortion, thereby ensuring the accuracy of the detected signal.

[0084] Optionally, in one embodiment, such as Figure 6 As shown, the temperature, salinity and depth detector 100 also includes at least one second float 70, which is connected between the first float 20 and the probe 10, and each second float 70 is provided with a second relay module for receiving and transmitting signals.

[0085] Specifically, in this embodiment, the second float 70 is basically the same as the first float 20 in structure. The difference is that the first float 20 and the second float 70 are at different heights in the seawater. For example, the first float 20 floats on the sea surface, while the second float 70 floats submerged in the seawater. Furthermore, when there are multiple second floats 70, the depths of the multiple second floats 70 in the seawater are also different from each other.

[0086] The second float 70 receives and processes the signal emitted by the probe 10, and then sends the processed signal back to the first float 20. It can be understood that, at greater detection depths, by providing at least one second float 70 between the first float 20 and the probe 10, the attenuation and distortion of the signal can be further reduced, thereby further ensuring the accuracy of the detection signal.

[0087] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0088] The temperature, salinity, and depth detector provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A temperature, salinity, and depth detector, characterized in that, include: The probe is used for underwater detection; A first float, wherein a first relay module is provided within the first float, and the first relay module is connected to the probe via a first signal line to receive and process electrical signals emitted by the probe; and, A data acquisition unit, which is installed on the hull, is provided. The first relay module is also connected to the data acquisition unit via a second signal line to send electrical signals to the data acquisition unit. The first float contains a first spindle compartment and a second spindle compartment. The first spool compartment is provided with a first cover, and the first cover is provided with a first thread hole and a first wire passage groove; the first thread hole communicates with the first spool compartment so that the first signal line can pass through the first spool compartment; the first wire passage groove communicates with the first spool compartment and extends from the first thread hole to the outer peripheral wall of the first cover; the first wire passage groove is also provided with a first limiting member, which is used to restrict the first signal line from sliding into the first wire passage groove from the first thread hole. The second spool compartment is provided with a second cover, on which a second threading hole and a second thread-passing groove are provided; the second threading hole communicates with the second spool compartment so that the second signal line can pass through the second spool compartment; the second thread-passing groove communicates with the second spool compartment and extends from the second threading hole to the outer peripheral wall of the second cover, and a second limiting member is also provided in the second thread-passing groove, which is used to restrict the second signal line from sliding into the second thread-passing groove from the second threading hole.

2. The temperature, salinity, and depth detector as described in claim 1, characterized in that, The first float has a first spool and a second spool inside, the first signal line is at least partially wound around the first spool, and the second spool is at least partially wound around the second spool.

3. The temperature, salinity, and depth detector as described in claim 2, characterized in that, The probe is provided with a third spool, and the first signal line is at least partially wound around the third spool, and the winding length of the first signal line on the third spool is greater than the winding length of the first signal line on the first spool. And / or, the temperature, salinity, and depth detector further includes a delivery tube for mounting on the hull, and the delivery tube contains a fourth spool, the second signal line is at least partially wound around the fourth spool, and the winding length of the second signal line on the fourth spool is greater than the winding length of the second signal line on the fourth spool.

4. The temperature, salinity, and depth detector as described in claim 2, characterized in that, The first float has a first sealed compartment located between the first spool compartment and the second spool compartment; The first spool is located inside the first spool compartment, the second spool is located inside the second spool compartment, and the first relay module is located inside the first sealed compartment.

5. The temperature, salinity, and depth detector as described in claim 4, characterized in that, The first float includes a first shell and a second shell. The first shell contains a first spool compartment, and the second shell contains a second spool compartment. The first shell and the second shell are spliced ​​together to form the first sealed chamber, and a sealing ring is sandwiched between the first shell and the second shell.

6. The temperature, salinity, and depth detector as described in claim 5, characterized in that, Both the first housing and the second housing are conical in shape, with the first housing having a first conical bottom end and a first conical top end, and the second housing having a second conical bottom end and a second conical top end. The bottom end of the first cone and the bottom end of the second cone are connected, and the top end of the first cone and the top end of the second cone respectively form the two ends of the first float.

7. The temperature, salinity, and depth detector as described in claim 1, characterized in that, The first float is provided with a first sealed chamber, and the first relay module is located in the first sealed chamber. The first sealed chamber has a water inlet hole on its wall, and a sealing plug is provided in the water inlet hole. The first sealed chamber is also provided with a motor and a transmission assembly. The motor is communicatively connected to the first relay module, and the motor is connected to the sealing plug through the transmission assembly, so that the motor can pull the sealing plug out of the water inlet hole through the transmission assembly.

8. The temperature, salinity, and depth detector according to any one of claims 1 to 7, characterized in that, The first relay module includes at least one of a signal amplification module, a signal shaping module, a signal regeneration module, and a noise suppression module.

9. The temperature, salinity, and depth detector according to any one of claims 1 to 7, characterized in that, The temperature, salinity, and depth detector also includes at least one second float, which is connected between the first float and the probe, and each second float is provided with a second relay module for receiving and transmitting signals.

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