Marine precise time control dual-mode release system

Abstract

The invention provides an ocean precise time control dual-mode release system, which comprises a microprocessor, a power supply management unit, a mode selection unit, an underwater acoustic signal processing unit, an autonomous timing control unit, a sound control unit and a structural member, and is characterized in that the microprocessor adopts a dynamic voltage adjustment and clock frequency control technology; the power supply management unit comprises a lithium battery charging and discharging management circuit and a DC-DC voltage stabilizing circuit; the mode selection unit comprises an autonomous timing release mode, an underwater acoustic communication release mode and a dual-mode mixed release mode. According to the system, a dual control scheme combining autonomous timing and underwater acoustic communication is adopted, when underwater acoustic communication fails, the action of releasing the device can be completed through autonomous timing, the reliability of the device is greatly improved, and reliable recovery of mounted equipment is ensured; if an autonomous timing mode is adopted, operation by professionals is not needed; release control can be completed through an autonomous timing function, it is ensured that the test is carried out smoothly, and environmental influence can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of marine equipment communication technology, and in particular to a marine precise time-controlled dual-mode release system. Background Art

[0002] Underwater release devices are widely used in underwater engineering. They use hydroacoustic methods to issue commands for remote control or recovery of underwater equipment. Currently, underwater release devices mainly rely on hydroacoustic communication technology, which can travel through thousands of meters of water depth to achieve precise control of deep-sea equipment. This type of equipment is widely used in marine scientific research, resource exploration, submarine pipeline maintenance and other fields.

[0003] However, the existing technology has the following defects: 1. Signal interference problem: underwater acoustic communication is affected by many factors, including water temperature, salinity and ocean background noise, which may cause signal distortion or misinterpretation, affecting the accuracy of operation. 2. Limited transmission distance: Although modern underwater acoustic communication technology can cover longer distances, signal transmission may still be blocked in extremely deep waters or complex terrain areas, limiting the working range of the releaser. 3. Complex system: Existing underwater acoustic communication releasers are usually complex in structure and require professional personnel to operate and maintain, which increases the cost of use and limits its popularity. 4. Reliability issues: During actual use in reservoirs, oceans and other environments, there have been many cases of no response or wrong response from the releaser, resulting in test failure. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a marine precise time-controlled dual-mode release system to solve the problems raised in the above-mentioned background technology. The present invention improves the reliability and reduces the complexity of the system. The system can also avoid interference from environmental factors.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a marine precise time-controlled dual-mode release system, which includes a microprocessor, a power management unit, a mode selection unit, an underwater acoustic signal processing unit, an autonomous timing control unit, an acoustic control unit and structural parts. The microprocessor adopts dynamic voltage adjustment and clock frequency control technology, and the microprocessor is used to realize integrated digital signal processing functions; the power management unit includes a lithium battery charging and discharging management circuit and a DC-DC voltage stabilizing circuit; the mode selection unit includes three modes: autonomous timing release mode, underwater acoustic communication release mode, and dual-mode mixed release mode.

[0006] Furthermore, the underwater acoustic signal processing unit includes a high-sensitivity integrated transceiver piezoelectric transducer, an analog signal processing circuit, a digital signal processing circuit and a microprocessor.

[0007] Furthermore, the piezoelectric transducer includes high-sensitivity piezoelectric ceramics, and the piezoelectric transducer is assembled through a special potting process, so that the piezoelectric transducer can be used for a long time in a harsh marine environment.

[0008] Furthermore, the analog signal processing circuit is used for filtering and amplifying analog small signals, and the front-end amplifier has overvoltage protection and circuit protection design; the digital signal processing circuit is used for analog-to-digital conversion, and outputs the converted digital signal to the microprocessor.

[0009] Furthermore, the autonomous timing control unit is composed of a dedicated integrated timing circuit and a power supply control circuit.

[0010] Furthermore, the integrated timing circuit adopts an ultra-low power real-time RTC, supports automatic switching between master and slave power supplies, is accessed through an I2C serial interface, and cooperates with a microprocessor to achieve precise time control.

[0011] Furthermore, the power control circuit adopts a low on-resistance, high current MOSFET solution and is not conductive when static.

[0012] Furthermore, the structural parts are made of high-strength, corrosion-resistant titanium alloy material, and the structural parts as a whole adopt an advanced double O-ring sealing method.

[0013] Furthermore, the system also includes three control modes: main timed release mode, underwater acoustic communication release mode, and dual-mode mixed release mode. The autonomous timed release mode sets the working mode and timing time through the serial port, and the control center configures the customized control unit. When the release time is reached, the customized control unit completes the release mechanism control to achieve the release purpose; the underwater acoustic communication release mode uses underwater acoustic communication to transmit control instructions from the remote end to complete the release mechanism control to achieve the release purpose.

[0014] Furthermore, the dual-mode hybrid release mode sets the working mode and timing time through the serial port, and the microprocessor configures the timing control unit. Before the release time is reached, if the transducer receives a remote release command, the control center completes the signal analysis and verification. If the signal is a correct release command, the control center completes the release mechanism control and completes the release of the counterweight block. If the transducer does not receive the remote release command when the release time is reached, or receives other erroneous commands, and the release mechanism has not been released correctly, at this time, the autonomous timing control unit completes the release mechanism control to achieve the release purpose.

[0015] Beneficial effects of the present invention:

[0016] 1. The marine precision time-controlled dual-mode release system adopts a dual control scheme of autonomous timing and underwater acoustic communication. When the underwater acoustic communication fails, the autonomous timing can complete the release device action, which greatly improves the reliability of the device and ensures the reliable recovery of the mounted equipment; and the working mode can be set. If the autonomous timing mode is adopted, no professional personnel are required to operate; the release control can be completed through the autonomous timing function to ensure the smooth progress of the test, thus avoiding environmental influences.

[0017] 2. The present invention combines a timed release function, and the user can preset the release time according to actual needs, so that the releaser can more flexibly respond to different operating requirements and environmental changes; the releaser with integrated timing function can be deployed in advance through simple settings, reducing on-site operation requirements, lowering the professional requirements for operators, and improving operating efficiency.

[0018] 3. The present invention adds a timed release function. Even in the event of underwater acoustic communication failure, the releaser can still perform the release operation according to the preset time plan, thereby greatly improving the reliability of the system. The addition of the timed release function enables the technology to be widely used in fields such as marine environment monitoring, military defense, and emergency rescue, especially in environments where real-time monitoring or communication is not possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a principle block diagram of a marine precise time-controlled dual-mode release system of the present invention.

[0020] Figure 2 The figure is a working principle diagram of an underwater release device in the prior art. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] Example 1

[0023] See also Figure 1 This embodiment provides the following technical solutions: a marine precise time-controlled dual-mode release system, which uses a combination of autonomous timed release and underwater acoustic communication release to achieve precise control of the release mechanism. It combines the timed release function, and the user can preset the release time according to actual needs, so that the releaser can more flexibly respond to different operational needs and environmental changes; the releaser with integrated timing function can be deployed in advance through simple settings, reducing the need for on-site operations, reducing the professional requirements for operators, and improving operational efficiency.

[0024] The system is mainly composed of a microprocessor, a power management unit, a mode selection unit, an underwater acoustic signal processing unit, an autonomous timing control unit, an underwater acoustic control unit and external structural parts.

[0025] in:

[0026] 1. Microprocessor

[0027] Microprocessors play a central role in underwater acoustic signal processing, and their design is optimized to achieve low-power operation, ensuring energy efficiency for long-term seabed operations. Using advanced dynamic voltage adjustment and clock frequency control technology, microprocessors can minimize energy consumption while maintaining high performance. The integrated digital signal processing (DSP) function enhances the ability to analyze complex underwater acoustic data in real time, providing strong technical support for marine scientific research and resource exploration.

[0028] 2. Power Management Unit

[0029] The whole device is powered by a 24V lithium battery, and the power management part is mainly composed of a lithium battery charge and discharge management circuit and a DC-DC voltage stabilizing circuit.

[0030] 1) The charge and discharge management circuit mainly completes the 24V lithium battery charging and discharging control, and has the functions of overcharge prevention, over-discharge prevention and voltage monitoring. The discharge cut-off voltage is set to 22V, the charge cut-off voltage is set to 29.2V, and the charging current is set to 2A;

[0031] 2) The DC-DC voltage regulator circuit completes the 24V voltage reduction and provides low-noise ±5V, +3.3V, and +1.8V voltages for each unit;

[0032] 3. Mode selection unit

[0033] 1) Selection method: The host computer is set through the serial port RS232, the baud rate is 115200;

[0034] 2) Mode configuration: Three modes are available: autonomous timed release mode, underwater acoustic communication release mode, and dual-mode mixed release mode (underwater acoustic communication is prioritized, and timed mode is second);

[0035] 4. Underwater acoustic signal processing unit

[0036] This part is mainly composed of a high-sensitivity integrated transceiver piezoelectric transducer, an analog signal processing circuit, a digital signal processing circuit and a microprocessor:

[0037] 1) Piezoelectric transducer: It is composed of multiple high-sensitivity piezoelectric ceramics and assembled through a special potting process;

[0038] 2) Analog signal processing: Complete analog small signal filtering and amplification. The front-end amplifier has overvoltage protection and circuit protection design to ensure signal integrity to the greatest extent, and output the amplified signal to the back-end digital signal processing circuit;

[0039] 3) Digital signal processing: Use high-precision ADC to complete front-end analog signal acquisition, complete analog-to-digital conversion, and output the converted digital signal to the microprocessor.

[0040] 5. Autonomous timing control unit

[0041] The autonomous timing control circuit is mainly composed of a dedicated integrated timing circuit and a power supply control circuit.

[0042] 1) Integrated timing circuit

[0043] It uses ultra-low power real-time RTC, supports automatic switching between master and slave power supplies, is accessed through the I2C serial interface, and works with the microprocessor to achieve precise time control;

[0044] 2) Power control circuit

[0045] It adopts low on-resistance and high current MOS tube solution, which is not conductive when static, greatly reducing system power consumption.

[0046] 6. Hydroacoustic control unit

[0047] The remote control center sends a release command, which is transmitted to the device through the ocean water medium. The microprocessor completes the signal analysis and compares the command with the command stored in the hydroacoustic control unit. If the command comparison is correct, the microprocessor controls the switch circuit in the hydroacoustic control circuit, the switch is turned on, and the 24V voltage drives the release mechanism through the switch to complete the release of the counterweight block;

[0048] 7. Structural design

[0049] High-strength, corrosion-resistant titanium alloy material is selected and advanced double O-ring sealing method is adopted to ensure that the titanium alloy shell meets the requirements for deep sea (6000 meters).

[0050] Example 2

[0051] This embodiment also provides three release control modes when the above system is running, as follows:

[0052] This system has three control modes, which can be configured according to actual needs: autonomous timed release mode, underwater acoustic communication release mode, and dual-mode mixed release mode (underwater acoustic communication priority, timing mode second).

[0053] 1. Autonomous timed release mode:

[0054] The serial port sets the working mode and timing time, and the control center configures the customized control unit. When the release time is reached, the customized control unit completes the release mechanism control to achieve the release purpose;

[0055] 2. Underwater acoustic communication release mode

[0056] Through underwater acoustic communication, control instructions are sent from a remote end to complete the release mechanism control and achieve the release purpose;

[0057] 3. Dual-mode mixed release mode:

[0058] The serial port sets the working mode and timing time, and the microprocessor configures the timing control unit. Before the release time is reached, if the transducer receives a remote release command, the control center completes the signal analysis and verification. If the signal is a correct release command, the control center completes the release mechanism control and completes the release of the counterweight. If the transducer does not receive the remote release command when the release time is reached, or receives other erroneous commands, the release mechanism has not been released correctly. At this time, the autonomous timing control unit completes the release mechanism control to achieve the release purpose.

[0059] In this embodiment, by adding a timed release function, even in the event of a failure in underwater acoustic communication, the releaser can still perform the release operation according to a preset time plan, thereby greatly improving the reliability of the system; the addition of a timed release function enables this technology to be widely used in fields such as marine environment monitoring, military defense, and emergency rescue, and shows unique advantages, especially in environments where real-time monitoring or communication is not possible.

[0060] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A marine precise time-controlled dual-mode release system, characterized in that: The release system includes a microprocessor, a power management unit, a mode selection unit, an underwater acoustic signal processing unit, an autonomous timing control unit, an acoustic control unit and structural parts. The microprocessor adopts dynamic voltage adjustment and clock frequency control technology, and the microprocessor is used to realize integrated digital signal processing functions; the power management unit includes a lithium battery charging and discharging management circuit and a DC-DC voltage stabilizing circuit; the mode selection unit includes three modes: autonomous timing release mode, underwater acoustic communication release mode, and dual-mode hybrid release mode.

2. The marine precise time-controlled dual-mode release system according to claim 1, characterized in that: The underwater acoustic signal processing unit includes a high-sensitivity transceiver-transmitter integrated piezoelectric transducer, an analog signal processing circuit, a digital signal processing circuit and a microprocessor.

3. The marine precise time-controlled dual-mode release system according to claim 2, characterized in that: The piezoelectric transducer includes high-sensitivity piezoelectric ceramics, and the piezoelectric transducer is assembled through a special potting process, so that the piezoelectric transducer can be used for a long time in a harsh marine environment.

4. The marine precise time-controlled dual-mode release system according to claim 2, characterized in that: The analog signal processing circuit is used for filtering and amplifying analog small signals, and the front-end amplifier has overvoltage protection and circuit protection design; the digital signal processing circuit is used for analog-to-digital conversion, and outputs the converted digital signal to the microprocessor.

5. The marine precise time-controlled dual-mode release system according to claim 1, characterized in that: The autonomous timing control unit is composed of a dedicated integrated timing circuit and a power supply control circuit.

6. The marine precise time-controlled dual-mode release system according to claim 5, characterized in that: The integrated timing circuit adopts an ultra-low power real-time RTC, supports automatic switching between master and slave power supplies, is accessed through an I2C serial interface, and cooperates with a microprocessor to achieve precise time control.

7. The marine precise time-controlled dual-mode release system according to claim 5, characterized in that: The power supply control circuit adopts a low on-resistance, high current MOS tube solution and is not conductive when static.

8. The marine precise time-controlled dual-mode release system according to claim 1, characterized in that: The structural parts are made of high-strength, corrosion-resistant titanium alloy material, and the structural parts as a whole adopt an advanced double O-ring sealing method.

9. The marine precise time-controlled dual-mode release system according to claim 1, characterized in that: The system also includes three control modes: main timed release mode, underwater acoustic communication release mode, and dual-mode mixed release mode. The autonomous timed release mode sets the working mode and timing time through the serial port, and the control center configures the customized control unit. When the release time is reached, the customized control unit completes the release mechanism control to achieve the release purpose; the underwater acoustic communication release mode uses underwater acoustic communication to send control instructions from the remote end to complete the release mechanism control and achieve the release purpose.

10. The marine precise time-controlled dual-mode release system according to claim 9, characterized in that: The dual-mode hybrid release mode sets the working mode and timing time through the serial port, and the microprocessor configures the timing control unit. Before the release time is reached, if the transducer receives a remote release command, the control center completes the signal analysis and verification. If the signal is a correct release command, the control center completes the release mechanism control and completes the release of the counterweight block. If the transducer does not receive the remote release command when the release time is reached, or receives other erroneous commands, the release mechanism has not been released correctly. At this time, the autonomous timing control unit completes the release mechanism control to achieve the release purpose.

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