CN113111545B - Digital twinning system for oxygen environment and oxygen production equipment for plateau railway - Google Patents
Digital twinning system for oxygen environment and oxygen production equipment for plateau railway Download PDFInfo
- Publication number
- CN113111545B CN113111545B CN202110663942.8A CN202110663942A CN113111545B CN 113111545 B CN113111545 B CN 113111545B CN 202110663942 A CN202110663942 A CN 202110663942A CN 113111545 B CN113111545 B CN 113111545B
- Authority
- CN
- China
- Prior art keywords
- oxygen
- information
- environment
- generation equipment
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention relates to a digital twinning system for an oxygen environment and oxygen production equipment for plateau railways. The working environment of plateau areas is hard, the oxygen making equipment is one of the major difficult projects of railway construction, and at present, there is no efficient remote real-time control means for the oxygen making equipment. The system comprises an oxygen environment digital twin subsystem and an oxygen production equipment digital twin subsystem, each of which comprises an information acquisition module, a digital simulation module, a calculation judgment module and a feedback control module, and the aims of remote real-time control are fulfilled by performing digital twin, simulation, calculation and feedback control on the oxygen environment and the oxygen production equipment through a BIM (building information modeling). The system has positive and direct effects on reducing operation cost, improving operation and maintenance efficiency and optimizing equipment management.
Description
Technical Field
The invention relates to the technical field of self-adaptive control of plateau railway oxygen generating equipment, in particular to a digital twinning system for a plateau railway oxygen environment and oxygen generating equipment.
Background
The digital twin technology fully utilizes data such as a physical model, sensor updating, operation history and the like, integrates a multidisciplinary, multi-physical quantity, multi-scale and multi-probability simulation process, and finishes mapping in a virtual space so as to reflect the full life cycle process of corresponding entity equipment. The digital twin system comprises a twin relation of accurate mapping between the entity equipment and the digital virtual body of the entity equipment, can completely bypass the entity equipment, and directly carries out simulation and emulation through the digital virtual body, thereby realizing the feedback control of the entity equipment.
The working environment of the high-cold high-altitude area is hard, and the oxygen generating equipment is one of the major difficult engineering points of railway construction. The existing railway oxygen generation equipment can not provide a stable oxygen environment when people are uncomfortable or sleep at night, and the energy consumption of the equipment is large; meanwhile, the equipment has no dynamic monitoring state, needs to be regularly checked by operators, needs to analyze reasons and appoint solution measures behind positions when faults occur, and is large in workload and low in efficiency for maintenance and maintenance personnel.
Disclosure of Invention
The invention aims to provide a digital twin system for an oxygen environment and an oxygen generating device for plateau railways, which is used for acquiring data of the oxygen environment and the oxygen generating device, synchronously simulating the data in a BIM (building information modeling) model, visually managing the oxygen environment and the oxygen generating device in real time, early warning abnormal states and realizing remote control of the oxygen generating device.
The technical scheme adopted by the invention is as follows:
oxygen environment and oxygen generating equipment's digital twin system is used to plateau railway, its characterized in that:
the system comprises an oxygen environment digital twin subsystem and an oxygen production equipment digital twin subsystem;
the oxygen environment digital twin subsystem comprises:
the first information acquisition module is used for acquiring oxygen concentration information, altitude information and number information in the oxygen environment;
the first digital simulation module is used for establishing a BIM model of the oxygen environment, mapping all information acquired by the first information acquisition module to the BIM model of the oxygen environment and carrying out data simulation;
the first calculation and judgment module extracts real-time oxygen concentration information and altitude information from the first digital simulation module, determines a set value of the oxygen concentration according to the altitude, compares and judges the real-time oxygen concentration with the set value, extracts the number of people in the real-time oxygen environment from the first digital simulation module if the real-time oxygen concentration is lower than the set value, and calculates the volume of gas produced by the oxygen generation equipment per hour;
the first feedback control module sends a control instruction to the oxygen generation equipment according to the gas volume output by the oxygen generation equipment per hour calculated by the first calculation and judgment module;
the digital twin subsystem of the oxygen generating equipment comprises:
the second information acquisition module is used for acquiring vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment;
the second digital simulation module is used for establishing BIM models of the oxygen generation station and the oxygen generation equipment, mapping all information acquired by the second information acquisition module to the BIM models of the oxygen generation station and the oxygen generation equipment and performing data simulation;
the second calculation and judgment module is used for extracting real-time oxygen generation equipment vibration frequency information, oxygen generation equipment power information, oxygen generation equipment working temperature information, oxygen generation station internal environment temperature and humidity information and oxygen generation equipment output pipeline conveyed gas information from the second digital simulation module, comparing the information with the normal use state parameter range of the oxygen generation equipment provided by a manufacturer, and judging whether the information exceeds the range;
and the second feedback control module sends a control instruction to the oxygen production equipment according to the result of the second calculation and judgment module.
The first information acquisition module comprises an oxygen sensor, an altitude altimeter and a video monitoring and image comparison system;
the oxygen sensor collects oxygen concentration information of an oxygen environment;
the altitude altimeter acquires altitude information;
the video monitoring and image comparison system collects information of the number of people in the oxygen environment.
In the first calculation and judgment module, the set value of the oxygen concentration is selected through the following processes:
first, the oxygen level of the oxygen environment is determined:
for the situation that personnel in the oxygen environment are rushed into the plateau, the oxygen level adopts A level;
for the situation that people in the oxygen environment do not have the emergency plateau and people in the short plateau, the oxygen level adopts A level or B level;
for people only existing in the oxygen environment and living in the plateau for a long time, the oxygen level adopts B level or C level;
then, in combination with the altitude extracted from the first digital simulation module, a required range of oxygen concentration is determined according to the oxygen level, and the set value of oxygen concentration selects the lowest limit value of the required range:
the process of calculating the gas volume output by the oxygen generation equipment per hour by the first calculation and judgment module is as follows:
first, the volume V of air inhaled per person per hour is calculatedHuman being，VHuman beingCalculated by equation (1):
in formula (1):
VskyTaking 15-20 m as the volume of air inhaled by each person every day3Is a constant number;
then, the volume V of the oxygen environment is calculatedChamber，VChamberCalculated by equation (2):
in formula (2):
SchamberIs the area of the oxygen environment;
h is the height of the oxygen environment;
next, the sum V of the volume of the oxygen environment and the volume of fresh air required by all persons in the oxygen environment per hour is calculatedMeterFresh air means replacement air of air conditioning system set in oxygen environment, VMeterCalculated by equation (3):
in formula (3):
Vchangeable by manThe fresh air volume required by people per hour is 80m3Is a constant number;
n is the number of people in an oxygen environment;
finally, the volume V of gas produced by the oxygen production equipment per hour is calculatedSystem for making，VSystem for makingCalculated by equation (4):
in formula (4):
Vsystem for makingIn units of Nm3/h，Nm3Is the volume of gas at 0 ℃ and 1 standard atmosphere;
Csystem for makingThe oxygen concentration of the gas produced by the oxygen production equipment is an inherent parameter of the equipment;
CchamberThe oxygen concentration required to be achieved by the oxygen environment, namely the set value of the oxygen concentration;
20.9% is the volume ratio of oxygen in air, and is constant.
When the first calculation and judgment module extracts real-time oxygen concentration information from the first digital simulation module and the oxygen concentration information is higher than a set value, a shutdown instruction is sent to the oxygen generation equipment through the first feedback control module.
The second information acquisition module comprises a vibration sensor, a power measuring instrument, a hygrothermograph and a pressure gauge flowmeter;
the vibration sensor acquires vibration frequency information of the oxygen production equipment;
the power measuring instrument acquires power information of the oxygen generating equipment;
the hygrothermograph acquires working temperature information of the oxygen generation equipment and environmental temperature and humidity information in the oxygen generation station;
the pressure gauge flowmeter collects the information of the gas conveyed in the output pipeline of the oxygen production equipment.
The second calculation and judgment module extracts real-time vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment from the second digital simulation module, and compares the information with a normal use state parameter range of the oxygen generation equipment provided by a manufacturer, wherein the normal use state parameter range of the oxygen generation equipment is subdivided into an optimal use state parameter range and a sub-health use state parameter range;
if the user is in the sub-health use state parameter range, prompting fault early warning and recommending maintenance personnel to carry out on-site verification;
if the state of the oxygen-generating equipment exceeds the sub-health use state parameter range, a fault is prompted, a judgment result is sent to the second feedback control module, the second feedback control module sends a shutdown instruction to the oxygen-generating equipment, and maintenance personnel are advised to carry out field maintenance.
The invention has the following advantages:
(1) the invention adopts an information acquisition module, a digital simulation module, a calculation judgment module and a feedback control module to realize the digital twin of the oxygen environment and the oxygen production equipment for the plateau railway, acquires the data of the oxygen environment and the oxygen production equipment through various sensors and cameras, maps the data in a BIM model for simulation, extracts the feedback control after calculation, controls the environment and the equipment in real time, realizes visual management, provides solution suggestion measures for the early warning of abnormal states, and can correspondingly adopt the remote control of related functions.
(2) According to the invention, environmental parameters are extracted in different use scenes, oxygen or air pressure with different concentrations is provided, the pertinence and the adaptability are better realized, and the operation cost is saved on the basis of meeting the oxygen demand of personnel;
(3) according to the invention, sensors and cameras in the oxygen generation station are arranged on all parts of the oxygen generation equipment, so that the equipment is visually managed in real time, the abnormal state of the equipment is alarmed, the reason is analyzed, the fault is prevented from happening, and the workload of the maintenance personnel for regular inspection is reduced.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to a digital twin system of an oxygen environment and oxygen generating equipment for a plateau railway, which comprises two digital twin subsystems, namely an oxygen environment digital twin subsystem and an oxygen generating equipment digital twin subsystem.
The oxygen environment digital twin subsystem maps the oxygen environment and the environment information thereof into a BIM model to form a digital twin relation, and controls the oxygen generating equipment according to the result feedback after simulation calculation, thereby implementing the adjustment of the oxygen concentration of the oxygen environment, and the oxygen environment digital twin subsystem specifically comprises:
the first information acquisition module is used for acquiring oxygen concentration information, altitude information and number information in the oxygen environment;
the first digital simulation module is used for establishing a BIM model of the oxygen environment, mapping all information acquired by the first information acquisition module to the BIM model of the oxygen environment and carrying out data simulation;
the first calculation and judgment module extracts real-time oxygen concentration information and altitude information from the first digital simulation module, determines a set value of the oxygen concentration according to the altitude, compares and judges the real-time oxygen concentration with the set value, extracts the number of people in the real-time oxygen environment from the first digital simulation module if the real-time oxygen concentration is lower than the set value, and calculates the volume of gas produced by the oxygen generation equipment per hour;
the first feedback control module sends a control instruction to the oxygen generation equipment according to the gas volume output by the oxygen generation equipment per hour calculated by the first calculation and judgment module.
The first information acquisition module comprises an oxygen sensor, an altitude altimeter and a video monitoring and image comparison system; the oxygen sensor collects oxygen concentration information of an oxygen environment; the altitude altimeter acquires altitude information; the video monitoring and image comparison system collects information of the number of people in the oxygen environment. The oxygen sensor in the first information acquisition module can also acquire atmospheric pressure and oxygen partial pressure information, and the oxygen sensor also can comprise a hygrothermograph for acquiring temperature and humidity information, and the information can be displayed in real time through the first digital simulation module.
In the first calculation and judgment module, the set value of the oxygen concentration is selected through the following processes:
first, the oxygen level of the oxygen environment is determined:
the personnel in the oxygen environment are classified, wherein the personnel in the oxygen environment comprise personnel who rapidly enter the plateau, personnel who live in the plateau for a short time and personnel who live in the plateau for a long time, the personnel who rapidly enter the plateau refer to the personnel who enter the plateau for less than 1 year, the personnel who live in the plateau for a short time refer to the personnel who enter the plateau for 1-2 years, and the personnel who live in the plateau for a long time refer to the personnel who enter the plateau for more than 2 years.
In the case of emergency personnel in the oxygen environment, oxygen is supplied to the oxygen environment according to the requirement of the emergency personnel, and the oxygen level is A. That is, as long as there is at least one person who rapidly enters the plateau in the oxygen environment, the oxygen level is class A.
In the case that no personnel in the emergency plateau region but short-living plateau region personnel exist in the oxygen environment, the oxygen environment is required to be supplied with oxygen according to the requirements of the short-living plateau region personnel, the oxygen level is A level or B level, and the A level is preferred. That is, there is no person who rapidly enters the plateau in the oxygen environment, but as long as there is a short person who enters the plateau, the oxygen level is class a or class B, preferably class a.
In the case that only the personnel in the long-term living plateau exists in the oxygen environment, the oxygen environment can be supplied with oxygen only according to the requirements of the personnel in the long-term living plateau, and the oxygen level adopts B level or C level, preferably B level.
If four persons exist in a dormitory, one person is a person who rapidly enters the plateau, one person is a person who stays in the plateau for a short time, and the other two persons stay in the plateau for a long time, because the person who rapidly enters the plateau exists, the oxygen demand of the person is met, and the oxygen level is selected to be A level. If 3 persons exist in a certain office, one person is a short person living in the plateau and the other two persons are long persons living in the plateau, the oxygen demand of the short person living in the plateau is met, the oxygen level adopts A level or B level, the A level is preferred, and the B level is selected if the regional electricity utilization limit exists. If all the persons in the long-term living plateau in a certain dormitory are in class B or class C, the class B is preferred, and class C is selected if the regional useful electricity is limited.
Then, in combination with the altitude extracted from the first digital simulation module, a required range of oxygen concentration is determined according to the oxygen level, and the set value of oxygen concentration selects the lowest limit value of the required range:
if the oxygen environment is a dormitory and a person who rapidly enters the plateau exists in the dormitory, the oxygen level is selected to be A level. The altitude of the dormitory extracted from the first digital simulation module is 3200m, and it can be known from the above table that the required range of the oxygen concentration is greater than 24.7%, so the set value of the oxygen concentration is 24.7%.
The process of calculating the gas volume output by the oxygen generation equipment per hour by the first calculation and judgment module is as follows:
first, the volume V of air inhaled per person per hour is calculatedHuman being，VHuman beingCalculated by equation (1):
in formula (1):
VskyTaking 15-20 m as the volume of air inhaled by each person every day3Is a constant number;
then, the volume V of the oxygen environment is calculatedChamber，VChamberCalculated by equation (2):
in formula (2):
SchamberIs the area of the oxygen environment;
h is the height of the oxygen environment;
next, the sum V of the volume of the oxygen environment and the volume of fresh air required by all persons in the oxygen environment per hour is calculatedMeter. The fresh air refers to air replaced by an air conditioning system installed in an oxygen environment, the air conditioning system and the oxygen generation equipment are installed in the oxygen environment and operate simultaneously, the air conditioning system performs air replacement on the oxygen environment, and the oxygen generation equipment transmits oxygen to the oxygen environment, so that the air volume replaced by the air conditioning system needs to be considered when calculating the volume of gas generated by the oxygen generation equipment per hour. VMeterCalculated by equation (3):
in formula (3):
Vchangeable by manThe fresh air volume required by people per hour is 80m3Is a constant number;
n is the number of people in an oxygen environment;
finally, the volume V of gas produced by the oxygen production equipment per hour is calculatedSystem for making，VSystem for makingCalculated by equation (4):
in formula (4):
Vsystem for makingIn units of Nm3/h，Nm3Is the volume of gas at 0 ℃ and 1 standard atmosphere;
Csystem for makingOxygen concentration of the gas produced by oxygen plants, which is an intrinsic parameter of oxygen plants, is generally higher than 90% in the oxygen plants currently on the market, so CSystem for makingTaking 90;
CchamberIs a set value of oxygen concentration;
20.9% is the volume ratio of oxygen in air, and is constant.
If the oxygen environment is a dormitory, the area of the dormitory is 20m23m in height, 3200m in altitude, 4 persons in dormitory, one of them is person who quickly enters plateau, oxygen level is A level, CChamberTaking 24.7, CSystem for makingTake 90, then VSystem for makingThe calculation process of (2) is as follows:
VskyTake 18m3Obtaining V from the formula (1)Human beingIs 0.75 m3/h；
Obtaining V from equation (2)ChamberIs 60m3；
Obtaining V from equation (3)MeterIs 380 m3；
Obtaining V from equation (4)System for makingIs 16.87Nm3/h。
When the first calculation and judgment module extracts real-time oxygen concentration information from the first digital simulation module and the oxygen concentration information is higher than a set value, a shutdown instruction is sent to the oxygen generation equipment through the first feedback control module.
Oxygen making equipment digit twin subsystem maps oxygen making station, oxygen making equipment and relevant parameter to in the BIM model, forms digit twin relation, carries out malfunction alerting according to the result after the emulation calculation to feedback control oxygen making equipment shuts down, oxygen making equipment digit twin subsystem specifically includes:
the second information acquisition module is used for acquiring vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment;
the second digital simulation module is used for establishing BIM models of the oxygen generation station and the oxygen generation equipment, mapping all information acquired by the second information acquisition module to the BIM models of the oxygen generation station and the oxygen generation equipment and performing data simulation;
the second calculation and judgment module is used for extracting real-time oxygen generation equipment vibration frequency information, oxygen generation equipment power information, oxygen generation equipment working temperature information, oxygen generation station internal environment temperature and humidity information and oxygen generation equipment output pipeline conveyed gas information from the second digital simulation module, comparing the information with the normal use state parameter range of the oxygen generation equipment provided by a manufacturer, and judging whether the information exceeds the range;
and the second feedback control module sends a control instruction to the oxygen production equipment according to the result of the second calculation and judgment module.
The second information acquisition module comprises a vibration sensor, a power measuring instrument, a hygrothermograph and a pressure gauge flowmeter; the vibration sensor acquires vibration frequency information of the oxygen production equipment; the power measuring instrument acquires power information of the oxygen generating equipment; the hygrothermograph acquires working temperature information of the oxygen generation equipment and environmental temperature and humidity information in the oxygen generation station; the pressure gauge flowmeter collects the information of the gas conveyed in the output pipeline of the oxygen production equipment. The second information acquisition module can also comprise a camera for acquiring video information of the environmental state of the oxygen generation equipment in the oxygen generation station, and is used for maintenance personnel to remotely check in real time.
The second calculation and judgment module extracts real-time vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment from the second digital simulation module, and compares the information with a normal use state parameter range of the oxygen generation equipment provided by a manufacturer, wherein the normal use state parameter range of the oxygen generation equipment is subdivided into an optimal use state parameter range and a sub-health use state parameter range; if the temperature in the oxygen generation station is higher than the required range, marking the abnormal color and data display on an environmental temperature data strip of the oxygen generation station in the BIM model, and recommending maintenance personnel to carry out on-site verification; if the state of the oxygen-generating equipment exceeds the sub-health use state parameter range, a fault is prompted, a judgment result is sent to the second feedback control module, the second feedback control module sends a shutdown instruction to the oxygen-generating equipment, and maintenance personnel are advised to carry out field maintenance.
The oxygen generation station is internally provided with air conditioners, heating heaters, ventilators and other equipment, and the environmental conditions in the oxygen generation station can be adjusted and improved by adjusting the operating parameters of the equipment.
When a BIM model of the oxygen production equipment is established, information such as the theoretical service life of the oxygen production equipment and the time of putting into use is initially recorded in the BIM model by the second digital simulation module, and the service life and the depreciation degree of the equipment are automatically judged by the second calculation and judgment module according to the service life for prompting.
The invention realizes the digital twin system design of the oxygen environment and the equipment state of the plateau railway oxygen generating equipment, and the system has positive and direct effects on reducing the operation cost, improving the operation and maintenance efficiency and optimizing the equipment management.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (6)
1. Oxygen environment and oxygen generating equipment's digital twin system is used to plateau railway, its characterized in that:
the system comprises an oxygen environment digital twin subsystem and an oxygen production equipment digital twin subsystem;
the oxygen environment digital twin subsystem comprises:
the first information acquisition module is used for acquiring oxygen concentration information, altitude information and number information in the oxygen environment;
the first digital simulation module is used for establishing a BIM model of the oxygen environment, mapping all information acquired by the first information acquisition module to the BIM model of the oxygen environment and carrying out data simulation;
the first calculation and judgment module extracts real-time oxygen concentration information and altitude information from the first digital simulation module, determines a set value of the oxygen concentration according to the altitude, compares and judges the real-time oxygen concentration with the set value, extracts the number of people in the real-time oxygen environment from the first digital simulation module if the real-time oxygen concentration is lower than the set value, and calculates the volume of gas produced by the oxygen generation equipment per hour;
the first feedback control module sends a control instruction to the oxygen generation equipment according to the gas volume output by the oxygen generation equipment per hour calculated by the first calculation and judgment module;
the digital twin subsystem of the oxygen generating equipment comprises:
the second information acquisition module is used for acquiring vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment;
the second digital simulation module is used for establishing BIM models of the oxygen generation station and the oxygen generation equipment, mapping all information acquired by the second information acquisition module to the BIM models of the oxygen generation station and the oxygen generation equipment and performing data simulation;
the second calculation and judgment module is used for extracting real-time oxygen generation equipment vibration frequency information, oxygen generation equipment power information, oxygen generation equipment working temperature information, oxygen generation station internal environment temperature and humidity information and oxygen generation equipment output pipeline conveyed gas information from the second digital simulation module, comparing the information with the normal use state parameter range of the oxygen generation equipment provided by a manufacturer, and judging whether the information exceeds the range;
the second feedback control module sends a control instruction to the oxygen generating equipment according to the result of the second calculation and judgment module;
in the first calculation and judgment module, the set value of the oxygen concentration is selected through the following processes:
first, the oxygen level of the oxygen environment is determined:
for the situation that personnel in the oxygen environment are rushed into the plateau, the oxygen level adopts A level;
for the situation that people in the oxygen environment do not have the emergency plateau and people in the short plateau, the oxygen level adopts A level or B level;
for people only existing in the oxygen environment and living in the plateau for a long time, the oxygen level adopts B level or C level;
then, in combination with the altitude extracted from the first digital simulation module, a required range of oxygen concentration is determined according to the oxygen level, and the set value of oxygen concentration selects the lowest limit value of the required range:
2. the digital twinning system for the oxygen environment and oxygen generation equipment for plateau railways as claimed in claim 1, which is characterized in that:
the first information acquisition module comprises an oxygen sensor, an altitude altimeter and a video monitoring and image comparison system;
the oxygen sensor collects oxygen concentration information of an oxygen environment;
the altitude altimeter acquires altitude information;
the video monitoring and image comparison system collects information of the number of people in the oxygen environment.
3. The digital twinning system for the oxygen environment and oxygen generation equipment for plateau railways as claimed in claim 2, which is characterized in that:
the process of calculating the gas volume output by the oxygen generation equipment per hour by the first calculation and judgment module is as follows:
first, the volume V of air inhaled per person per hour is calculatedHuman being，VHuman beingCalculated by equation (1):
Vhuman being＝VSky/24 (1)
In formula (1):
VskyTaking 15-20 m as the volume of air inhaled by each person every day3Is a constant number;
then, the volume V of the oxygen environment is calculatedChamber，VChamberCalculated by equation (2):
Vchamber＝SChamberH (2)
In formula (2):
SchamberIs the area of the oxygen environment;
h is the height of the oxygen environment;
next, the sum V of the volume of the oxygen environment and the volume of fresh air required by all persons in the oxygen environment per hour is calculatedMeterFresh air means replacement air of air conditioning system set in oxygen environment, VMeterCalculated by equation (3):
Vmeter＝VChamber+VChangeable by mann (3)
In formula (3):
Vchangeable by manThe fresh air volume required by people per hour is 80m3Is a constant number;
n is the number of people in an oxygen environment;
finally, the volume V of gas produced by the oxygen production equipment per hour is calculatedSystem for making，VSystem for makingCalculated by equation (4):
in formula (4):
Vsystem for makingIn units of Nm3/h，Nm3Is the volume of gas at 0 ℃ and 1 standard atmosphere;
Csystem for makingThe oxygen concentration of the gas produced by the oxygen production equipment is an inherent parameter of the equipment;
CchamberThe oxygen concentration required to be achieved by the oxygen environment, namely the set value of the oxygen concentration;
20.9% is the volume ratio of oxygen in air, and is constant.
4. The digital twinning system for the oxygen environment and oxygen generation equipment for plateau railways as claimed in claim 3, wherein:
when the first calculation and judgment module extracts real-time oxygen concentration information from the first digital simulation module and the oxygen concentration information is higher than a set value, a shutdown instruction is sent to the oxygen generation equipment through the first feedback control module.
5. The digital twinning system for the oxygen environment and oxygen generation equipment for plateau railways as claimed in claim 4, wherein:
the second information acquisition module comprises a vibration sensor, a power measuring instrument, a hygrothermograph and a pressure gauge flowmeter;
the vibration sensor acquires vibration frequency information of the oxygen production equipment;
the power measuring instrument acquires power information of the oxygen generating equipment;
the hygrothermograph acquires working temperature information of the oxygen generation equipment and environmental temperature and humidity information in the oxygen generation station;
the pressure gauge flowmeter collects the information of the gas conveyed in the output pipeline of the oxygen production equipment.
6. The digital twinning system for the oxygen environment and oxygen generation equipment for plateau railways as claimed in claim 5, wherein:
the second calculation and judgment module extracts real-time vibration frequency information of the oxygen generation equipment, power information of the oxygen generation equipment, working temperature information of the oxygen generation equipment, environmental temperature and humidity information in the oxygen generation station and gas information conveyed in an output pipeline of the oxygen generation equipment from the second digital simulation module, and compares the information with a normal use state parameter range of the oxygen generation equipment provided by a manufacturer, wherein the normal use state parameter range of the oxygen generation equipment is subdivided into an optimal use state parameter range and a sub-health use state parameter range;
if the user is in the sub-health use state parameter range, prompting fault early warning and recommending maintenance personnel to carry out on-site verification;
if the state of the oxygen-generating equipment exceeds the sub-health use state parameter range, a fault is prompted, a judgment result is sent to the second feedback control module, the second feedback control module sends a shutdown instruction to the oxygen-generating equipment, and maintenance personnel are advised to carry out field maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110663942.8A CN113111545B (en) | 2021-06-16 | 2021-06-16 | Digital twinning system for oxygen environment and oxygen production equipment for plateau railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110663942.8A CN113111545B (en) | 2021-06-16 | 2021-06-16 | Digital twinning system for oxygen environment and oxygen production equipment for plateau railway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113111545A CN113111545A (en) | 2021-07-13 |
| CN113111545B true CN113111545B (en) | 2021-09-10 |
Family
ID=76723555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110663942.8A Active CN113111545B (en) | 2021-06-16 | 2021-06-16 | Digital twinning system for oxygen environment and oxygen production equipment for plateau railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113111545B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053067A (en) * | 2021-11-22 | 2022-02-18 | 成都昶艾电子科技有限公司 | Working method and device of plateau oxygen supply system, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037800A (en) * | 2017-06-15 | 2017-08-11 | 中国人民解放军军事医学科学院卫生装备研究所 | Based on client oxygen generating plant remote failure diagnosis system and method for diagnosing faults |
| CN112416531A (en) * | 2020-12-07 | 2021-02-26 | 深圳华制智能制造技术有限公司 | Digital twin system simulation method, system, computer device and storage medium |
| CN112801614A (en) * | 2021-01-27 | 2021-05-14 | 河北建设集团天辰建筑工程有限公司 | CIM and BIM linkage system based on digital twinning technology |
| CN112815466A (en) * | 2021-01-27 | 2021-05-18 | 中铁第一勘察设计院集团有限公司 | Construction method of plateau railway oxygen regulation system |
| CN112882765A (en) * | 2021-01-29 | 2021-06-01 | 航天科工智能运筹与信息安全研究院(武汉)有限公司 | Digital twin model scheduling method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11663375B2 (en) * | 2019-05-03 | 2023-05-30 | Willow Technology Corporation Pty Ltd | Configuration of a digital twin for a building or other facility via BIM data extraction and asset register mapping |
| CN112150613A (en) * | 2020-09-23 | 2020-12-29 | 成都云铁智能交通科技有限公司 | Method for generating kilokilometer high-speed rail contact net three-dimensional twinning system by driving BIM model |
-
2021
- 2021-06-16 CN CN202110663942.8A patent/CN113111545B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037800A (en) * | 2017-06-15 | 2017-08-11 | 中国人民解放军军事医学科学院卫生装备研究所 | Based on client oxygen generating plant remote failure diagnosis system and method for diagnosing faults |
| CN112416531A (en) * | 2020-12-07 | 2021-02-26 | 深圳华制智能制造技术有限公司 | Digital twin system simulation method, system, computer device and storage medium |
| CN112801614A (en) * | 2021-01-27 | 2021-05-14 | 河北建设集团天辰建筑工程有限公司 | CIM and BIM linkage system based on digital twinning technology |
| CN112815466A (en) * | 2021-01-27 | 2021-05-18 | 中铁第一勘察设计院集团有限公司 | Construction method of plateau railway oxygen regulation system |
| CN112882765A (en) * | 2021-01-29 | 2021-06-01 | 航天科工智能运筹与信息安全研究院(武汉)有限公司 | Digital twin model scheduling method and device |
Non-Patent Citations (4)
| Title |
|---|
| Air Quality Monitoring in a BIM model by means of a IoT Sensors Network;Carlo Alberto Rosati等;《IEEE Xplore》;20201110;全文 * |
| Mobile Mapping, Machine Learning and Digital Twin for Road Infrastructure Monitoring and Maintenance: Case Study of Mohammed VI Bridge in Morocco;Hakdaoui Sofia等;《IEEE Xplore》;20200622;全文 * |
| 青藏高原铁路客车供氧系统在低压环境下的性能研究;高玉功;《铁道机车车辆》;20080630;第28卷(第3期);37-41 * |
| 高原智能制氧系统及远程维护平台的研究;王济虎;《万方学位论文》;20120630;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113111545A (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104303203B (en) | Energy search engine method and system | |
| CN109883918B (en) | Protective mask testing system and method | |
| CN106225163A (en) | A kind of indoor environment test and appraisal control method and system | |
| KR20230116105A (en) | A digital twin platform that supports energy management and optimization of buildings that consume a lot of energy | |
| CN107133702A (en) | A kind of wind power plant whole audience power forecasting method | |
| CN106558916A (en) | Information cuing method and information presentation device | |
| CN113111545B (en) | Digital twinning system for oxygen environment and oxygen production equipment for plateau railway | |
| CN110298104A (en) | It is a kind of that energy saving building design information processing system and method are carried out using digital simulation | |
| CN104296809A (en) | Human body surrounding environment measuring-controlling and early-warning system based on wearable equipment | |
| CN103968505A (en) | Indoor environment intelligent adjustment system | |
| CN207922391U (en) | A kind of high-precision constant-temperature constant-moisture control monitoring device | |
| US20230083027A1 (en) | Multi-area artificial fog pipe network intelligent control method and system based on yolov5 algorithm | |
| CN117850273A (en) | Digital twin system for controlling carbon emission of building | |
| Rastogi et al. | AQCI: an IoT based air quality and thermal comfort model using fuzzy inference | |
| CN112686511A (en) | Construction safety management system based on building information model | |
| CN206223233U (en) | A kind of experimental system for simulating for large-scale cabin environment Comfort Evaluation | |
| CN118396780A (en) | Building environment and energy coupling intelligent regulation and control system and method based on digital twin | |
| Ren et al. | Zonal demand-controlled ventilation strategy to minimize infection probability and energy consumption: A coordinated control based on occupant detection | |
| JPWO2016056051A1 (en) | Diagnostic device, diagnostic method, and program | |
| CN209068669U (en) | Room pressure dynamic purification system | |
| CN115167303A (en) | Low-carbon control system and method for internal environment of factory | |
| KR20230028683A (en) | IoT-BASED DATA VISUALIZATION METHOD FOR ZERO-ENERGY BUILDINGS | |
| CN206627811U (en) | The intelligence control system of vent cabinet | |
| CN210107635U (en) | Ventilation energy-saving system of green building | |
| CN107544567B (en) | Gas-saving control system and method for open-top gas simulation gas chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |