Life support gas concentration real-time detection device of manned submersible closed cabin

Abstract

The utility model provides a life support gas concentration real-time detection device of a manned submersible closed cabin, which comprises a manned cabin control system and further comprises a life support system, the life support system comprises a detection module, an oxygen supply module, an alarm module and a processing module, the oxygen supply module comprises a high-pressure oxygen bottle and an electromagnetic valve, and the alarm module comprises an alarm module and a processing module. The alarm module comprises an audible and visual alarm, the processing module comprises a first processor and a second processor, and the first processor is electrically connected with the second processor. The detection module is arranged to detect the gas concentration condition in the closed cabin, the first processor and the second processor are used for data processing to control the oxygen supply module to adjust the gas concentration, and detection and adjustment of the gas concentration in the closed space are achieved; an alarm source is visually displayed through a grading alarm function of gas detection; and display and control functions are integrated in the touchable serial port screen, so that the integration level and the practicability of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas concentration detection, in particular to a real-time detection device for the concentration of life-supporting gas in a closed cabin of a manned submersible. Background Art

[0002] A manned submersible is a high-tech device that can operate underwater for a long time. It is widely used in deep-sea exploration, scientific research, resource development, and military reconnaissance. In the deep-sea environment, the closed cabin inside the submersible is an important space for divers to operate. In order to ensure the life safety and physical health of divers, the life support system in the closed cabin is crucial. Maintaining the normal air quality level in the manned cabin is one of the necessary conditions to ensure safe diving. Real-time detection of gas concentration in the cabin is a vital part of ensuring the diving process. The existing gas concentration detection device in the closed cabin takes up a large space, is difficult to maintain, and has a single function. Therefore, a simple, convenient, reliable, and highly integrated real-time detection device for life support gas concentration is developed. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a real-time detection device for the concentration of life-supporting gases in a closed cabin of a manned submersible to solve the above-mentioned problems in the prior art.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A real-time detection device for the concentration of life-supporting gases in a closed cabin of a manned submersible comprises a manned cabin control system and a life support system. The life support system comprises a detection module, an oxygen supply module, an alarm module and a processing module. The detection module comprises an oxygen concentration detection sensor, a carbon dioxide concentration detection sensor, a temperature, humidity and atmospheric pressure integrated sensor, a formaldehyde concentration sensor and an LEL concentration detection sensor. The oxygen supply module comprises a high-pressure oxygen cylinder and a solenoid valve. The high-pressure oxygen cylinder is provided with an oxygen supply port, and the solenoid valve is provided at the oxygen supply port. The alarm module comprises an audible and visual alarm. The processing module comprises a first processor and a second processor. The temperature, humidity and atmospheric pressure integrated sensor, the LEL concentration detection sensor, the solenoid valve, the manned cabin control system and the audible and visual alarm are all electrically connected to the first processor. The oxygen concentration detection sensor, the carbon dioxide concentration detection sensor and the formaldehyde concentration sensor are all electrically connected to the second processor. The first processor and the second processor are electrically connected.

[0006] Furthermore, the number of the oxygen concentration detection sensors is two groups, and the number of the carbon dioxide concentration detection sensors is two groups.

[0007] Furthermore, the life support system also includes a touchable serial port screen, and the touchable serial port screen is electrically connected to the first processor.

[0008] Furthermore, the life support system also includes a DC power supply module, which is divided into two power supply routes, one of which is used to directly supply power to the outside, and the other is divided into a first power supply module and a second power supply module after passing through a power chip. The first power supply module provides two power supply interfaces, one of which is used to power the first processor, and the other is used to supply power to the outside. The second power supply module provides two power supply interfaces, one of which is used to power the second processor, and the other is used to supply power to the outside.

[0009] Furthermore, the life support system also includes a mute button, and the mute button is electrically connected to the first processor.

[0010] Furthermore, the solenoid valve includes a normally open solenoid valve and a normally closed solenoid valve, and the normally open solenoid valve and the normally closed solenoid valve are both arranged at the oxygen supply port of the high-pressure oxygen cylinder.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a real-time detection device for the concentration of life-support gases in a closed cabin of a manned submersible, which integrates all functions into two processors, improves the processing efficiency of the system, and increases the system integration. A power supply system is provided, which can provide a power supply interface in the closed cabin while supplying power to the system, thus saving the use space in the closed cabin. Through the hierarchical alarm scheme in the system, the source of the alarm can be distinguished more intuitively so as to quickly handle abnormal situations. A touchable serial port screen with rich functions and excellent display effects is adopted to provide the system with more developable, operable and controllable use functions. Two sets of oxygen concentration sensors and carbon dioxide concentration sensors are provided, and they serve as backup for each other, thereby increasing the reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the system of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a power supply module according to an embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of a first processor of an embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of the second processor of the embodiment of the utility model. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The enumerated embodiments are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model provides a real-time detection device for the concentration of life-supporting gases in a closed cabin of a manned submersible, comprising a manned cabin control system and a life support system, wherein the life support system comprises a detection module, an oxygen supply module, an alarm module and a processing module, wherein the detection module comprises an oxygen concentration detection sensor, a carbon dioxide concentration detection sensor, a temperature, humidity and atmospheric pressure integrated sensor, a formaldehyde concentration sensor and an LEL concentration detection sensor, wherein the oxygen supply module comprises a high-pressure oxygen cylinder and a solenoid valve, wherein the high-pressure oxygen cylinder is provided with an oxygen supply port, wherein the solenoid valve is provided at the oxygen supply port, wherein the alarm module comprises an audible and visual alarm, wherein the processing module comprises a first processor and a second processor, wherein the temperature, humidity and atmospheric pressure integrated sensor, the LEL concentration detection sensor, the solenoid valve, the manned cabin control system and the audible and visual alarm are all electrically connected to the first processor, wherein the oxygen concentration detection sensor, the carbon dioxide concentration detection sensor and the formaldehyde concentration sensor are all electrically connected to the second processor, and wherein the first processor and the second processor are electrically connected.

[0020] Exemplarily, the first processor and the second processor both use a microcontroller unit of model STM32F103VCT6. According to the communication protocols of each sensor, a complete and stable data communication function with data error correction capability and a self-designed protocol for interconnecting the first processor and the second processor are developed, and the first processor and the second processor cooperate with each other to process the data of the sensor. Two groups of processors are set to process data, which improves the efficiency of data processing.

[0021] The oxygen concentration detection sensor model adopts Honeywell iO2, the carbon dioxide concentration detection sensor model adopts Honeywell iCO2, the formaldehyde concentration sensor model adopts Dart WZ-SK formaldehyde detection module, the LEL concentration detection sensor model adopts Honeywell iLEL, and the manned cabin control system adopts existing technology.

[0022] The alarm is issued in a graded manner: first, the gas in the closed cabin is detected by the sensor in the detection module, and the detection data is processed by the first processor and the second processor. When the gas concentration is at a normal value, no alarm is issued; when the gas concentration is slightly different from the normal value, the first alarm is activated, and the first processor controls the sound and light alarm to light up the alarm; when the gas concentration is significantly different from the normal value, the second alarm is activated, and the first processor controls the sound and light alarm to light up the alarm; and the oxygen, carbon dioxide, and dangerous gas concentration alarms are distinguished. When the oxygen concentration is low, the first processor adjusts the oxygen in the closed cabin by controlling the opening and closing of the solenoid valve on the high-pressure oxygen cylinder.

[0023] The number of the oxygen concentration detection sensors is two groups, and the number of the carbon dioxide concentration detection sensors is two groups.

[0024] Exemplarily, there are two groups of oxygen concentration detection sensors and carbon dioxide concentration detection sensors, both of which are used for oxygen and carbon dioxide numerical detection in the closed cabin and for communicating with the manned cabin control system for data storage. The data of one group of sensors is used for alarm judgment of gas concentration and for controlling the solenoid valve when adjusting the oxygen concentration. When a failure occurs, it can be manually switched to another group. A backup plan is set for oxygen detection in the closed cabin to avoid the situation where the system cannot operate when one group fails, thereby ensuring the safety in the closed cabin. The oxygen concentration detection sensors in this embodiment all use a range of 0% to 30% of the oxygen concentration, and the carbon dioxide concentration detection sensors all use a range of 0ppm to 10000ppm.

[0025] The life support system further includes a touchable serial port screen, and the touchable serial port screen is electrically connected to the first processor.

[0026] For example, the touchable serial port screen uses a touchable serial port screen with a resolution of 800*480. The touchable serial port screen integrates detection information and touch control switches, including oxygen concentration detection data information, carbon dioxide concentration detection data information, and manual touch switches for opening and closing the solenoid valve. Users can intuitively observe the oxygen concentration detection data information and carbon dioxide concentration detection data information. In special cases, the opening and closing of the solenoid valve can be manually controlled to adjust the oxygen concentration in the closed cabin.

[0027] The life support system also includes a DC power supply module, which is divided into two power supply routes, one of which is used to directly supply power to the outside, and the other is divided into a first power supply module and a second power supply module after passing through a power chip. The first power supply module provides two power supply interfaces, one of which is used to power the first processor, and the other is used to supply power to the outside. The second power supply module provides two power supply interfaces, one of which is used to power the second processor, and the other is used to supply power to the outside.

[0028] Exemplarily, the DC power supply module is 24V, which is divided into two power supply routes, one of which is 24V for powering corresponding external devices. The other route first converts the voltage to 5V after passing through the power chip, and then converts the voltage to 3.3V, and is divided into a first power supply module and a second power supply module. The first power supply module provides power supply for the first processor and 3.3V power supply for external devices, and the second power supply module provides power supply for the second processor and 3.3V power supply for external devices. The DC power supply module is divided into external power supply and internal power supply, and the first power supply module and the second power supply module after passing through the 3.3V power chip are set to the form of internal power supply and external power supply, providing power supply interfaces of different specifications for the system and external devices. The system integration is increased and the space utilization rate in the closed cabin is improved.

[0029] The life support system further comprises a mute button, and the mute button is electrically connected to the first processor.

[0030] Exemplarily, the mute button is used to temporarily turn off the sound and light alarm, making it easier to turn off the alarm after resolving the alarm problem.

[0031] The solenoid valve comprises a normally open solenoid valve and a normally closed solenoid valve, and both the normally open solenoid valve and the normally closed solenoid valve are arranged at the oxygen supply port of the high-pressure oxygen cylinder.

[0032] For example, a normally open solenoid valve and a normally closed solenoid valve are used to jointly control the high-pressure oxygen cylinder to adjust the oxygen in the closed cabin. When the oxygen concentration in the closed cabin is too low, the oxygen is further supplemented by controlling the opening of the normally closed solenoid valve; when the oxygen concentration in the closed cabin is too high, the oxygen concentration in the closed cabin is controlled by controlling the closing of the normally open solenoid valve. The normally closed solenoid valve is set to automatically close 30 seconds after being manually opened. By setting a normally open solenoid valve and a normally closed solenoid valve, it is more convenient to control the oxygen concentration in the closed cabin, which increases the safety in the closed cabin.

[0033] In the above embodiments, the temperature, humidity and atmospheric pressure integrated sensor, solenoid valve, sound and light alarm, touchable serial port screen, power chip and mute button can all adopt existing models known to those skilled in the art.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A real-time detection device for the concentration of life-supporting gases in a closed cabin of a manned submersible, comprising a manned cabin control system, characterized in that: It also includes a life support system, which includes a detection module, an oxygen supply module, an alarm module and a processing module. The detection module includes an oxygen concentration detection sensor, a carbon dioxide concentration detection sensor, a temperature, humidity and atmospheric pressure integrated sensor, a formaldehyde concentration sensor and an LEL concentration detection sensor. The oxygen supply module includes a high-pressure oxygen cylinder and a solenoid valve. The high-pressure oxygen cylinder is provided with an oxygen supply port, and the solenoid valve is provided at the oxygen supply port. The alarm module includes an audible and visual alarm. The processing module includes a first processor and a second processor. The temperature, humidity and atmospheric pressure integrated sensor, the LEL concentration detection sensor, the solenoid valve, the manned cabin control system, and the audible and visual alarm are all electrically connected to the first processor. The oxygen concentration detection sensor, the carbon dioxide concentration detection sensor, and the formaldehyde concentration sensor are all electrically connected to the second processor. The first processor and the second processor are electrically connected.

2. The device for real-time detection of life support gas concentration in a closed cabin of a manned submersible according to claim 1, characterized in that: The number of the oxygen concentration detection sensors is two groups, and the number of the carbon dioxide concentration detection sensors is two groups.

3. The device for real-time detection of life support gas concentration in a closed cabin of a manned submersible according to claim 1, characterized in that: The life support system further includes a touchable serial port screen, and the touchable serial port screen is electrically connected to the first processor.

4. The device for real-time detection of life support gas concentration in a closed cabin of a manned submersible according to claim 1, characterized in that: The life support system also includes a DC power supply module, which is divided into two power supply routes, one of which is used to directly supply power to the outside, and the other is divided into a first power supply module and a second power supply module after passing through a power chip. The first power supply module provides two power supply interfaces, one of which is used to power the first processor, and the other is used to supply power to the outside. The second power supply module provides two power supply interfaces, one of which is used to power the second processor, and the other is used to supply power to the outside.

5. The device for real-time detection of life support gas concentration in a closed cabin of a manned submersible according to claim 1, characterized in that: The life support system further comprises a mute button, and the mute button is electrically connected to the first processor.

6. The device for real-time detection of life support gas concentration in a closed cabin of a manned submersible according to claim 1, characterized in that: The solenoid valve comprises a normally open solenoid valve and a normally closed solenoid valve, and both the normally open solenoid valve and the normally closed solenoid valve are arranged at the oxygen supply port of the high-pressure oxygen cylinder.

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