Signal processing system of automatic oxygen supply device in pressure environment

Abstract

The invention discloses a signal processing system for an automatic oxygen supply device in a pressure environment, which comprises a signal processing system, and the signal processing system comprises a single-chip microcomputer master control circuit, a power supply circuit, a detection module power supply circuit, a signal acquisition circuit, a pump control circuit, a buzzer control circuit and a communication circuit. The power supply of the signal processing system is composed of an integrated power supply module, a filter, a standby battery, a protective tube and the like, the integrated power supply selects an ultra-low ripple switching power supply, adopts a fully-sealed integrated structure, realizes multi-path output, is mutually independent, realizes input and output multi-stage filtering, has good electromagnetic compatibility, and is suitable for large-scale industrial production. The circuit has the advantages of short circuit protection, overcurrent protection, overheating protection and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of supply device signal processing, and particularly to a signal processing system for an automatic oxygen supply device under a pressure environment. Background Technique

[0002] A submarine (also known as: black fish), or a submersible ship, a submarine, is a ship that can operate underwater. There are various types of submarines with different shapes and sizes, ranging from small civilian diving detectors that are fully automatic or operated by one or two people and have an operating time of several hours, to the Typhoon-class nuclear submarines that can carry hundreds of people and have a continuous submerged navigation time of 3 - 6 months. According to volume, they can be divided into large (mainly military), medium or small (miniature submarines, submersibles), and underwater automatic mechanical devices, etc.

[0003] Most large submarines are cylindrical, and usually a vertical structure (bridge) is set up in the middle of the ship, which was early called the "conning tower / bridge", and inside there are communication, sensors, periscopes, control equipment, etc. Nowadays, deep - sea submarines or professional submarines often do not have this design.

[0004] Submarines are widely used and hold many important positions. Their functions include attacking enemy warships or submarines, in - shore protection, etc. Submarines are also used for non - military purposes, such as marine scientific research, salvage of property, exploration and exploitation, scientific detection, equipment maintenance, search and rescue, underwater cable repair, underwater tourism and sightseeing, academic investigation, etc. Super - rich people even use them as underwater mobile mansions.

[0005] Their R & D requires high and comprehensive industrial capabilities. Especially the ballistic missile nuclear submarine is a key part of the nuclear triad, and submarines are also early stealth vehicles. When the noise of a submarine is reduced to about 90 decibels, it can be "submerged" in the vast ocean background noise and cannot be detected by contemporary sonar. Therefore, whether it is the signal interruption of the equipment itself during the operation of the submarine or the need to continue underwater detection, it is necessary to ensure the stability of the equipment signal. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide a signal processing system for an automatic oxygen supply device under a pressure environment, which adopts a fully - sealed integrated structure, has multiple independent outputs, multi - stage filtering for input and output, has good electromagnetic compatibility performance, and has protections such as short - circuit, over - current, over - heat, etc., so as to solve the problems raised in the above - mentioned background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A signal processing system for an automatic oxygen supply device under a pressure environment, the signal processing system includes a single - chip microcomputer main control circuit, a power supply circuit, a detection module power supply circuit, a signal acquisition circuit, a pump control circuit, a buzzer control circuit, and a communication circuit;

[0008] The microcontroller on the microcontroller main control circuit is a general-purpose 32-bit high-performance and low-power microcontroller based on the ARM Cortex-M3 core;

[0009] The working frequency of the microcontroller can reach up to 108 MHz at most, with excellent processing performance;

[0010] The microcontroller has 1024 KB of on-chip flash memory and 96 KB of SRAM built-in, and at the same time provides 3024 KB of on-chip flash memory and 256 KB of SRAM.

[0011] Preferably, a U31 module and a U32 module are provided on the microcontroller main control circuit. A 10K resistor R10 is provided at the BOOT0 terminal of the U3 module, and the other end of the 10K resistor R10 is grounded. A reset circuit is provided on the microcontroller main control circuit. A 10K resistor R9 is provided on the reset circuit. One end of the 10K resistor R9 is connected to a 3.3V voltage, and the other end of the 10K resistor R9 is provided with a switch S1. A 0.1uF capacitor C5 is connected in parallel at both ends of the switch S1;

[0012] The VBAT terminal of the U32 module is connected to a 0.1uF capacitor C11, and the other connection end of the 0.1uF capacitor C11 is grounded. The VSS-4 connection terminal of the U32 module is connected to a resistor R11, the other end of the resistor R11 is connected to a 0.1uF capacitor C16, and the other end of the 0.1uF capacitor C16 is connected to the VDDA terminal of the U32 module.

[0013] Preferably, a module U1 and a module LDO1 are provided on the power supply circuit;

[0014] The VIN terminal of the module U1 is connected to VCC, the FB terminal of the module U1 is connected to a 5V voltage. A 680uF capacitor C1 and a 220uF capacitor C2 are connected between the VIN terminal and the FB terminal. The OUT terminal of the module U1 is connected to an inductor L1. The OUT terminal of the module U1 is connected to a diode D1, and the positive electrode of the diode is grounded;

[0015] A 1uF capacitor C3 is connected between the VIN terminal and the VSS terminal of the module LDO1. A 1uF capacitor C4 is connected to the VOUT terminal of the module LDO1. The positive electrode of the 1uF capacitor C4 is connected to a 3.3V voltage, and the negative electrode of the 1uF capacitor C4C4 is grounded.

[0016] Preferably, a detection module power supply terminal is provided on the detection module power supply circuit. There are a 1K resistor R17, a light-emitting diode LED1, and a K1 module on the detection module power supply circuit. The node between the 1K resistor R17 and the K1 module is connected to a 100Ω resistor R16. One end of the 100Ω resistor R16 is connected to a 5V voltage, and the other connection end of the 100Ω resistor R16 is provided with a diode D2. The positive electrode of the diode D2 is connected to the collector of a triode Q4. The emitter of the triode Q4 is grounded, and the base of the triode Q4 is connected to a 2K resistor R14. A 10K resistor R15 is provided between the 2K resistor R14 and the base of the triode Q4.

[0017] Preferably, a module U4 is provided on the communication circuit. The RO terminal on the module U4 is connected to a 1KΩ resistor R18. The DE terminal on the module U4 is connected to the node between a 4.7KΩ resistor R20 and a triode Q5. The emitter of the triode Q5 is grounded, and the base of the triode Q5 is connected to a 4.7K resistor R19. The VCC terminal on the module U4 is connected to a 0.1uF capacitor C17, and the other connection end of the 0.1uF capacitor C17 is grounded. The B connection terminal on the module U4 is connected to a 4.7KΩ resistor R21, and the A connection terminal on the module U4 is connected to a 4.7KΩ resistor R22. There are bidirectional trigger diodes D4, D3, and D5 on the communication circuit, and the bidirectional trigger diodes D4, D3, and D5 are connected in series with each other.

[0018] Preferably, a temperature, humidity, and pressure circuit, a flow rate circuit, an oxygen circuit, a carbon dioxide circuit, a battery power circuit, a pump control circuit, and a buzzer control circuit are provided on the signal acquisition circuit. A module XH7 is provided on the pump control circuit. Port 5 on the module XH7 is connected to a 10K resistor R6, and the other end of the 10K resistor R6 is grounded. Port 2 on the module XH7 is connected to a 5V voltage;

[0019] A 100Ω resistor R5 is provided on the buzzer control circuit. One end of the 100Ω resistor R5 is connected to a 5V voltage, and the other end of the 100Ω resistor R5 is connected to port 1 on a module XH10. Port 2 on the module XH10 is connected to the collector of a triode Q3. The emitter of the triode Q3 is grounded, and the base of the triode Q3 is connected to a 2K resistor R7. The node between the resistor R7 and the triode Q3 is connected to a 10K resistor R8, and the other end of the 10K resistor R8 is connected to the emitter of the triode Q3.

[0020] Preferably, an air pump is provided on the signal processing system. The air pump is a small and compact micro air pump, and the gas flow rate is stably controlled at 0.5 - 1L / min, and the pumping speed is adjustable.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The power supply of the signal processing system consists of components such as an integrated power module, a filter, a backup battery, and a fuse. The integrated power supply selects a switch-mode power supply with extremely low ripple, adopts a fully sealed integrated structure, has multiple independent outputs, performs multi-stage filtering on the input and output, has good electromagnetic compatibility performance, and has the advantages of short-circuit, over-current, over-heat protection, etc. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the single-chip microcomputer control circuit structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the main power supply circuit and the power supply circuit of the acquisition module of the present invention;

[0025] Figure 3 It is a schematic diagram of the power supply circuit of the detection module of the present invention;

[0026] Figure 4 It is a schematic diagram of the communication circuit of the present invention;

[0027] Figure 5 It is a schematic diagram of the signal acquisition circuit of the present invention;

[0028] Figure 6 It is a schematic diagram of the pump signal acquisition and control circuit of the present invention;

[0029] Figure 7 It is a schematic diagram of the buzzer signal acquisition and control circuit of the present invention. Detailed Embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-7 , the present invention provides a technical solution: a signal processing system for an oxygen automatic supply device under a pressure environment. The signal processing system includes a single-chip microcomputer main control circuit, a power supply circuit, a detection module power supply circuit, a signal acquisition circuit, a pump control circuit, a buzzer control circuit, and a communication circuit;

[0032] The single-chip microcomputer on the single-chip microcomputer main control circuit is a general-purpose 32-bit high-performance and low-power microcontroller based on the ARM Cortex-M3 core;

[0033] The working frequency of the single-chip microcomputer can reach up to 108 MHz at most, and it has excellent processing performance;

[0034] The microcontroller is built-in with 1024KB of on-chip flash memory and 96KB of SRAM, and at the same time provides 3024KB of on-chip flash memory and 256KB of SRAM.

[0035] The microcontroller main control circuit is provided with U31 module and U32 module. There is a 10K resistor R10 at the BOOT0 terminal of U3 module, and the other end of the 10K resistor R10 is grounded. The microcontroller main control circuit is provided with a reset circuit. There is a 10K resistor R9 on the reset circuit. One end of the 10K resistor R9 is connected to a 3.3V voltage, and the other end of the 10K resistor R9 is provided with a switch S1. A 0.1uF capacitor C5 is connected in parallel at both ends of the switch S1.

[0036] A 0.1uF capacitor C11 is connected to the VBAT terminal of U32 module, and the other connection end of the 0.1uF capacitor C11 is grounded. A resistor R11 is connected to the VSS-4 connection terminal of U32 module, the other end of the resistor R11 is connected to a 0.1uF capacitor C16, and the other end of the 0.1uF capacitor C16 is connected to the VDDA terminal of U32 module.

[0037] The power supply circuit is provided with module U1 and module LDO1. The VIN terminal of module U1 is connected to VCC, the FB terminal of module U1 is connected to a 5V voltage. A 680uF capacitor C1 and a 220uF capacitor C2 are connected between the VIN terminal and the FB terminal. The OUT terminal of module U1 is connected to an inductor L1, and the OUT terminal of module U1 is connected to a diode D1. The positive electrode of the diode is grounded.

[0038] A 1uF capacitor C3 is connected between the VIN terminal and the VSS terminal of module LDO1. A 1uF capacitor C4 is connected to the VOUT terminal of module LDO1. The positive electrode of the 1uF capacitor C4 is connected to a 3.3V voltage, and the negative electrode of the 1uF capacitor C4C4 is grounded.

[0039] The detection module power supply circuit is provided with a detection module power supply terminal. The detection module power supply circuit is provided with a 1K resistor R17, a light-emitting diode LED1, and a K1 module. A node between the 1K resistor R17 and the K1 module is connected to a 100Ω resistor R16. One end of the 100Ω resistor R16 is connected to a 5V voltage, and the other connection end of the 100Ω resistor R16 is provided with a diode D2. The positive electrode of the diode D2 is connected to the collector of the triode Q4. The emitter of the triode Q4 is grounded. The base of the triode Q4 is connected to a 2K resistor R14, and a 10K resistor R15 is provided between the 2K resistor R14 and the base of the triode Q4.

[0040] A module U4 is provided on the communication circuit. The RO terminal on the module U4 is connected to a 1KΩ resistor R18. The DE terminal on the module U4 is connected to the node between a 4.7KΩ resistor R20 and a triode Q5. The emitter of the triode Q5 is grounded, and the base of the triode Q5 is connected to a 4.7K resistor R19. The VCC terminal on the module U4 is connected to a 0.1uF capacitor C17, and the other connection terminal of the 0.1uF capacitor C17 is grounded. The B connection terminal on the module U4 is connected to a 4.7KΩ resistor R21, and the A connection terminal on the module U4 is connected to a 4.7KΩ resistor R22. Bidirectional trigger diodes D4, D3, and D5 are provided on the communication circuit. The bidirectional trigger diodes D4, D3, and D5 are connected in series with each other. The communication circuit performs real-time and efficient processing on the communication signals of the entire circuit, ensuring the signal transmission and control of all components in the entire circuit system.

[0041] A temperature-humidity-pressure circuit, a flow circuit, an oxygen circuit, a carbon dioxide circuit, a battery power circuit, a pump control circuit, and a buzzer control circuit are provided on the signal acquisition circuit. A module XH7 is provided on the pump control circuit. Port 5 on the module XH7 is connected to a 10K resistor R6, and the other end of the 10K resistor R6 is grounded. Port 2 on the module XH7 is connected to a 5V voltage. The signal acquisition circuit performs real-time signal acquisition on the circuit signals in the entire circuit system, performs data detection and analysis on the acquired signals, and monitors the signals in the entire circuit system in real time.

[0042] A 100Ω resistor R5 is provided on the buzzer control circuit. One end of the 100Ω resistor R5 is connected to a 5V voltage, and the other end is connected to port 1 on the module XH10. Port 2 on the module XH10 is connected to the collector of the triode Q3. The emitter of the triode Q3 is grounded, and the base of the triode Q3 is connected to a 2K resistor R7. The node between the resistor R7 and the triode Q3 is connected to a 10K resistor R8, and the other end of the 10K resistor R8 is connected to the emitter of the triode Q3. After receiving the signal current in the circuit, the buzzer control circuit issues an alarm signal according to the received current signal.

[0043] The main system and the detection module of the signal processing system are separately powered, and AC220V and DC24V power supplies can be used. The power supply part of the main system can charge the battery and supply power to components such as an industrial computer, a display screen, an air pump, a temperature and humidity sensor, and a pressure sensor through a signal processing board. The power supply of the detection module can separately supply power to the oxygen detection module and the carbon dioxide detection module. The separate power supply of the control unit can prevent other control units from being unable to supply power and operate normally in case of a power supply problem in one control unit.

[0044] An air extraction pump is provided on the signal processing system. The air extraction pump is a small and compact micro air pump, with the gas flow rate stably controlled at 0.5 - 1 L / min and the air extraction speed adjustable.

[0045] The power supply of this signal processing system consists of components such as an integrated power module, a filter, a backup battery, and a fuse tube. The integrated power supply selects a very low ripple switching power supply, adopts a fully sealed integrated structure, has multiple independent outputs, performs multi-stage filtering for input and output, has good electromagnetic compatibility performance, and has the advantages of short-circuit, over-current, over-heat protection, etc.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal processing system for an oxygen automatic supply device under a pressure environment, characterized in that: The signal processing system includes a single-chip microcomputer main control circuit, a power supply circuit, a detection module power supply circuit, a signal acquisition circuit, a pump control circuit, a buzzer control circuit, and a communication circuit; The single-chip microcomputer on the single-chip microcomputer main control circuit is a general-purpose 32-bit high-performance and low-power microcontroller based on the ARM Cortex-M3 core; The working frequency of the single-chip microcomputer can reach up to 108 MHz, with excellent processing performance; The single-chip microcomputer is built-in with 1024 KB of on-chip flash memory and 96 KB of SRAM, and at the same time provides 3024 KB of on-chip flash memory and 256 KB of SRAM.

2. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, wherein: The single-chip microcomputer main control circuit is provided with a U31 module and a U32 module. A 10K resistor R10 is provided at the BOOT0 terminal of the U3 module, and the other end of the 10K resistor R10 is grounded. The single-chip microcomputer main control circuit is provided with a reset circuit. A 10K resistor R9 is provided on the reset circuit. One end of the 10K resistor R9 is connected to a 3.3V voltage, and the other end of the 10K resistor R9 is provided with a switch S1. A 0.1uF capacitor C5 is connected in parallel at both ends of the switch S1; A 0.1uF capacitor C11 is connected to the VBAT terminal of the U32 module, and the other connection end of the 0.1uF capacitor C11 is grounded. A resistor R11 is connected to the VSS-4 connection terminal of the U32 module, the other end of the resistor R11 is connected to a 0.1uF capacitor C16, and the other end of the 0.1uF capacitor C16 is connected to the VDDA terminal of the U32 module.

3. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, wherein: The power supply circuit is provided with a module U1 and a module LDO1; The VIN terminal of the module U1 is connected to VCC, the FB terminal of the module U1 is connected to a 5V voltage. A 680uF capacitor C1 and a 220uF capacitor C2 are connected between the VIN terminal and the FB terminal. The OUT terminal of the module U1 is connected to an inductor L1. The OUT terminal of the module U1 is connected to a diode D1, and the positive pole of the diode is grounded; A 1uF capacitor C3 is connected between the VIN terminal and the VSS terminal of the module LDO1. A 1uF capacitor C4 is connected to the VOUT terminal of the module LDO1. The positive pole of the 1uF capacitor C4 is connected to a 3.3V voltage, and the negative pole of the 1uF capacitor C4C4 is grounded.

4. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, characterized in that: The detection module power supply circuit is provided with a detection module power supply terminal. The detection module power supply circuit is provided with a 1K resistor R17, a light-emitting diode LED1, and a K1 module. A node between the 1K resistor R17 and the K1 module is connected to a 100Ω resistor R16. One end of the 100Ω resistor R16 is connected to a 5V voltage, and the other connection end of the 100Ω resistor R16 is provided with a diode D2. The positive pole of the diode D2 is connected to the collector of a triode Q4, the emitter of the triode Q4 is grounded, and the base of the triode Q4 is connected to a 2K resistor R14. A 10K resistor R15 is provided between the 2K resistor R14 and the base of the triode Q4.

5. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, characterized in that: A module U4 is provided on the communication circuit. The RO terminal on the module U4 is connected to a 1KΩ resistor R18. The DE terminal on the module U4 is connected to the node between a 4.7KΩ resistor R20 and a triode Q5. The emitter of the triode Q5 is grounded, and the base of the triode Q5 is connected to a 4.7K resistor R19. The VCC terminal on the module U4 is connected to a 0.1uF capacitor C17, and the other connection end of the 0.1uF capacitor C17 is grounded. The B connection terminal on the module U4 is connected to a 4.7KΩ resistor R21, and the A connection terminal on the module U4 is connected to a 4.7KΩ resistor R22. A bidirectional trigger diode D4, a bidirectional trigger diode D3, and a bidirectional trigger diode D5 are provided on the communication circuit, and the bidirectional trigger diode D4, the bidirectional trigger diode D3, and the bidirectional trigger diode D5 are connected in series with each other.

6. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, wherein: A temperature-humidity-pressure circuit, a flow circuit, an oxygen circuit, a carbon dioxide circuit, a battery power circuit, a pump control circuit, and a buzzer control circuit are provided on the signal acquisition circuit. A module XH7 is provided on the pump control circuit. The port 5 on the module XH7 is connected to a 10K resistor R6, and the other end of the 10K resistor R6 is grounded. The port 2 on the module XH7 is connected to a 5V voltage. A 100Ω resistor R5 is provided on the buzzer control circuit. One end of the 100Ω resistor R5 is connected to a 5V voltage, and the other end of the 100Ω resistor R5 is connected to the port 1 on the module XH10. The port 2 on the module XH10 is connected to the collector of a triode Q3. The emitter of the triode Q3 is grounded, and the base of the triode Q3 is connected to a 2K resistor R7. The node between the resistor R7 and the triode Q3 is connected to a 10K resistor R8, and the other end of the 10K resistor R8 is connected to the emitter of the triode Q3.

7. The signal processing system of an automatic oxygen supply device under a pressure environment according to claim 1, wherein: An air pump is provided on the signal processing system. The air pump is a small and compact micro air pump, and the gas flow is stably controlled at 0.5 - 1L / min, and the pumping speed is adjustable.

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