CN100568246C - A kind of garments thermal comfort degree display systems towards teaching - Google Patents
A kind of garments thermal comfort degree display systems towards teaching Download PDFInfo
- Publication number
- CN100568246C CN100568246C CNB2008100258770A CN200810025877A CN100568246C CN 100568246 C CN100568246 C CN 100568246C CN B2008100258770 A CNB2008100258770 A CN B2008100258770A CN 200810025877 A CN200810025877 A CN 200810025877A CN 100568246 C CN100568246 C CN 100568246C
- Authority
- CN
- China
- Prior art keywords
- clothes
- human body
- simulation
- module
- garments
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a kind of garments thermal comfort degree display systems, belong to the function clothes cad technique field in the Computer Simulation research field towards teaching.It comprises one can self-defining database module, a virtual environment design module and an overall system structure module, at first the virtual environment design module uses three-dimensional true geometric model to come the constructing virtual scene, adopts the 2 D animation technology simultaneously as a supplement; Then simulating scenes and simulation result data are kept in the database the configurable main simulating scenes data of user; Determine corresponding actual emulation result data at last in view of the above, carry out real-time clothes hot merit and can show.Based on the analogue system framework that the present invention proposes a semireal time, be used for the teaching displaying that the clothes hot merit can design, extract by the optimization to simulation parameter, the user can carry out the parameter adjustment with a kind of mode intuitively, thereby has realized the simulation to simulation process.
Description
Technical field
The invention belongs to the function clothes cad technique field in the Computer Simulation research field, particularly relate to and be used for the teaching that function clothes design hot comfort analyzes and the implementation method of displaying.
Background technology
Simulated environment (Simulation Environments) has obtained successful application as a powerful learning tool in many engineerings field at present.These systems are generally based on the didactics of maturation, and advanced technologies such as the visual and virtual reality of applying three-dimensional allow the user to explore under reality environment, comprise the modification correlation parameter, to the result of calculation visualized operation etc.Usually these systems can be divided into two classes, i.e. non real-time (off-line) and (on-line, real-time) system in real time.The nonreal time simulation device is mainly used in estimates complicated equation or model, the actual physical systematic procedure is not carried out real-time simulation, and its integration of user interaction functionality is restricted.Real-time simulator has the interaction capabilities of height and explores function, however their high complexity and consuming time often.Overcome the weak point of these two kinds of systems, be necessary to study new analogue system, can strengthen interactive function and reduce system complexity and time loss.The research of garments thermal comfort degree has obtained bigger progress in recent years, existing clothes hot merit energy Virtual design system (PSMART), can carry out the virtual emulation analysis to the correlative factor and the process that influence the garments thermal comfort performance, design desirable hot comfort dress-goods in view of the above.Although the PSMART system provides good graphic user interface and three-dimensional visualization to handle, seem too that in application facet such as teaching and displayings complexity and ease for use are relatively poor.Educational training for clothing industry is used, and a large amount of technical terms and complicated simulation numerical calculating and setting are difficult to grasp for common learner.Therefore, the trend that adapts to electronic instruction, develop an educational aid of analyzing at garments thermal comfort degree, can help to learn to a given dress designing, wear hot comfort effect under the scene in difference, the heat of the human body-clothing system transmittance process that wets, the distribution situation of each layer of inner temperature humidity, and the key factor that influences garments thermal comfort degree.This is all significant for the E-business applications of dress designing and clothing industry.Based on the analogue system framework that the present invention proposes a semireal time, be used for the teaching displaying that the clothes hot merit can design.Extract by the optimization to simulation parameter, the user can carry out the parameter adjustment with a kind of mode intuitively, thereby has realized the simulation to simulation process.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, proposed design surface under a kind of semireal time of (Half-Live) the analogue system framework to the method for designing of garments thermal comfort degree display systems of teaching.Quasi-real simulation system binding data storehouse, computer animation and visualization technique at first are kept at simulating scenes and simulation result data in the database, the configurable main simulating scenes data of user; Determine corresponding actual emulation result data then in view of the above, carrying out real-time clothes hot merit can show, extract by optimization simulation parameter, the user can carry out the parameter adjustment with a kind of mode intuitively, thereby realized simulation, satisfied the teaching that the clothes hot merit can design and the requirement of displaying effectively simulation process.
In order to realize the object of the invention, the technical scheme of employing is as follows:
A kind of garments thermal comfort degree display systems towards teaching comprises a database, a virtual environment design module and an overall system structure module, database is used for the various data of saved system, the virtual environment design module is used to design virtual environment, and the overall system structure module is realized the system business logic function.
The data that described database is preserved comprise: 1) all are about the parameter and the variable of human body, environment and dress materials, 2) simulating scenes of forming together according to human body, clothes and the environment of appointment, 3) simulation example that is formed by one or more simulating scenes, 4) system carries out the human body of simulation calculation and the dynamic hot state of clothes to human body-wet transmittance process of clothes heat.
Described virtual environment design module uses three-dimensional true geometric model to come the constructing virtual scene, adopt the 2 D animation technology simultaneously as a supplement, mainly contain following components: 1) select human body and dress form, simulation dressing human body, 2) represent the important parameter of human body and clothes with geometric model: body weight, surface area, human body skin clothes coverage rate and types of garments etc., 3) to the visual aspect of environmental baseline, construct a virtual climatic chamber, comprise with wall color showing air themperature, radiation temperature is represented in illumination, a virtual thermometer reflection relative humidity, and a fluctuation contain curtain texture representation of a surface wind speed size, 4) adopt the hot state of method for visualizing reflection dressing human bodies such as 2 D animation and transversal section demonstration; 5) to the time domain data of hot comfort emulation, adopt adaptive time domain data to explore function: the event clock that at first utilizes windows system the inside clock control, calculate real-time time, realize the real time modelling of the dynamic heat and moisture transmittance process between human body-clothes, adopt the adaptive analysis algorithm then, to state parameter to be analyzed, set in advance an activation value, data and its comparison with each time point, at last only show those data, realize flexible control analog rate greater than activation value.
The system business logic function of described overall system structure module may further comprise the steps: 1) for given human body and clothes, the major parameter of simulating scenes is set, from database, obtain result of calculation, 2) table look-up and estimate the thermal resistance value (Clo) of clothes, calculate the human thermal comfort degree; 3) to the simulation calculation result, intuitively obtain simulating the hot comfort state of human body, by analyzing the hot comfort performance performance under the different scenes, realize study to clothes hot merit energy realistic model relevant knowledge.
Variable in the described database meets input with the icon figures, and variable comprises body weight, the body surface area of human body; The structure of the number of plies of clothes, coverage rate, each layer (comprise thickness, density, fiber composition, whether contain discharge water film and covert material etc.); Wear scene setting and comprise physical activity degree, time and environmental baseline (air themperature, relative humidity, wind speed and radiation temperature).
Beneficial effect of the present invention:
1. the present invention adopts icon and the main hot comfort artificial variable of graphical symbol input, it is various to have solved the physics physiological parameter complexity that other comfort level models are comprised, the problem that the strong inconvenient non-researchist of specificity uses has strengthened the virtual reality effect of system.
2. the present invention adopts the data-base recording simulation example that can dispose automatically, and solved simulation calculation scene and boundary condition and requirement has been set model is understood in depth, otherwise problem that can not correct calculation.Therefore most of significant simulating scenes can design and calculate in advance, even can't find accurate coupling example, always also can find very close example, and can not have a strong impact on this target of study.The custom feature that system provides also can collect present non-existent example, replenishes gas simulation result data for system maintenance person.
3. the invention provides the effect of visualization of three peacekeeping animations.The user can understand the important parameter that influences the garments thermal comfort degree performance at virtual environment middle school acclimatization dress hot comfort knowwhy, provides the user to clothes hot merit energy and comfort level understanding directly perceived and deep.These student and initial designs personnel to clothing industry have great importance.
Description of drawings
Fig. 1 is the display systems structural representation;
Fig. 2 is a quasi-real simulation overall system configuration diagram;
Fig. 3 is main design variable choice structure figure in the database design module.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing:
Of the present invention based on the quasi-real simulation system towards the teaching garments thermal comfort degree display systems general structure as shown in Figure 1, it comprises database design module, virtual environment design module, overall system structure module.
The overall system configuration diagram as shown in Figure 2, its specific implementation step is as follows:
1) at first import specific human body and clothes,, the major parameter of simulating scenes is set according to the base attribute of this human body and clothes, such as: the body weight of human body, body surface area; The structure of the number of plies of clothes, coverage rate, each layer of clothes (comprise thickness, density, fiber composition, whether contain discharge water film and covert material etc.) by database matching, obtains corresponding simulation calculation result then.
2) the table look-up thermal resistance value (Clo) of estimation clothes is calculated the PMV comfort level value of human body by the static heat environment.PMV (the Predicted Mean Vote) model that promptly adopts Fanger to propose, the comfort level evaluation model under a kind of steady stability environment calculates PMV comfort level value.That is: by physical activity level (metabolic rate) in the step 1 and types of garments (clothing thermal resistance value), comprise air themperature, humidity, mean radiant temperature and flow velocity by measure environment variables, the calculating optimum comfort level.According to the definition in the IS07730 standard:
Calculate PMV:
PMV＝(0.303*e
-0.036*M+0.028)*[(M-W)-H-E
c-C
res-E
res]
In the formula: M is the body energy metabolic rate, and W is the mechanical work that human body is done, and H is an air humidity, and Ec is a mean radiant temperature, and Cres is an air themperature, and Eres is an air velocity.
3) to 1) in the simulation calculation result that obtains, promptly the hot wet condition parameter of human body, clothes is carried out the visual of reality environment, then according to 2) in the comfort level value, simulation intuitively shows human body ground hot comfort state.Can represent differently comfort level by color.As: red expression heat, yellow expression is warm, and blue expression is cold etc.
4) the hot comfort performance of wearing under the scene in difference by the analysis livery shows, the hot comfort performance of different garment structure, and the simulation result of various computing model relatively, thereby realize the study to relevant knowledges such as clothes hot merit energy realistic model, garments thermal comfort degree performance, clothes hot merit energy product virtual design.
Require as follows based on above-mentioned database foundation:
1) selection of basic parameter: be to realize the design environment of virtual reality, only from a lot of variablees of the numerical simulation model of hot comfort, choose important and variable comparatively intuitively.These main variables can use the icon figures to meet input, with the virtual reality effect of enhanced system.The variable of choosing as shown in Figure 3.Important variable comprises: the body weight of human body, body surface area; The structure of the number of plies of clothes, coverage rate, each layer (comprise thickness, density, fiber composition, whether contain discharge water film and covert material etc.); Wear scene setting and comprise physical activity degree, time and environmental baseline (air themperature, relative humidity, wind speed and radiation temperature).
2) according to 1) in significant variable, wait the dress simulating scenes in conjunction with human body, thermal environment, movement degree and time and calculate simulation result, promptly the hot wet condition data of the aspects such as physics physiology of human body, clothes store database into.To guarantee to simulate all exemplary simulation scenes as far as possible.Even can't find the simulation example of accurate coupling, always also can find very approaching example, and can not have a strong impact on this target of study.Not preceding non-existent example can be collected database simultaneously, replenish the simulation result data.。
The design of virtual environment design module can be followed following method:
1) human body and dress form can be derived by Poser 5.0 softwares, simulation dressing human body.
2) important parameter of human body and clothes such as body weight, surface area, human body skin clothes coverage rate and types of garments etc. all adopt geometric model to represent.If the human body surface grid model of choosing comprises nearly 35,000 tri patchs, and can show very real manikin.
3) aspect environmental baseline visual, construct a virtual climatic chamber, comprise that radiation temperature is represented in illumination with wall color showing air themperature, a virtual thermometer reflection relative humidity, and the curtain texture curved surface that contains of a fluctuation is represented the wind speed size.
4) method for visualizing such as the 2 D animation of employing Poser system and transversal section demonstration represent the hot state of human body.That is: to the parameter of reflection dressing people body heat state, as: human thermal comfort degree, skin temperature, rate of perspiration, metabolic rate, volume of blood flow, and these multidata numeric field datas such as stable and moisture distribution of each layer of clothes are carried out visual simultaneously.
5), adopt adaptive time domain to explore function at the time domain data of hot comfort emulation.At first, for realizing the virtual environment of the sense of reality, carry out real time modelling to realizing the dynamic heat and moisture transmittance process between human body-clothes.For realizing real-time clock control on computers, utilize the clock control incident of windows system the inside, calculate real-time time.Adopt the adaptive analysis algorithm in addition, the system that makes can show these special data intervals such as fast-changing time zone automatically.That is: the state parameter to analyzing sets in advance an activation value, and data and its comparison with each time point only show those data greater than activation value then.
Claims (2)
1, a kind of garments thermal comfort degree display systems towards teaching, it comprise one can self-defining database module, a virtual environment design module and an overall system structure module, database module is used for the various data of saved system; The virtual environment design module is used to design virtual environment; The overall system structure module is realized the system business logic function, it is characterized in that,
The data that described database module is preserved comprise: 1) all are about the parameter and the variable of human body, environment and dress materials, 2) simulating scenes of forming together according to human body, clothes and the environment of appointment, 3) simulation example that is formed by one or more simulating scenes, 4) system carries out the human body of simulation calculation and the dynamic hot state of clothes to human body-wet transmittance process of clothes heat;
Described virtual environment design module uses three-dimensional true geometric model to come the constructing virtual scene, adopt the 2 D animation technology simultaneously as a supplement, mainly contain following components: 1) select human body and dress form, simulation dressing human body, 2) represent the important parameter of human body and clothes with geometric model: body weight, surface area, human body skin clothes coverage rate and types of garments, 3) to the visual aspect of environmental baseline, construct a virtual climatic chamber, comprise with wall color showing air themperature, radiation temperature is represented in illumination, a virtual thermometer reflection relative humidity, and a fluctuation contain curtain texture representation of a surface wind speed size, 4) adopt 2 D animation and transversal section display of visually method to reflect the hot state of dressing human body, 5) to the time domain data of hot comfort emulation, adopt adaptive time domain data to explore function: the event clock that at first utilizes windows system the inside clock control, calculate real-time time, realize the real time modelling of the dynamic heat and moisture transmittance process between human body-clothes, adopt the adaptive analysis algorithm then, to state parameter to be analyzed, set in advance an activation value, data and its comparison with each time point, at last only show those data, realize flexible control analog rate greater than activation value;
The system business logic function of described overall system structure module may further comprise the steps: 1) for given human body and clothes, the major parameter of simulating scenes is set, from database, obtain result of calculation, 2) table look-up the estimation clothes thermal resistance value, calculate the human thermal comfort degree, 3) to the simulation calculation result, intuitively obtain simulating the hot comfort state of human body, by analyzing the hot comfort performance performance under the different scenes, realize study to clothes hot merit energy realistic model relevant knowledge.
2, the garments thermal comfort degree display systems towards teaching according to claim 1 is characterized in that, the variable in the described database is imported with the icon graphic symbol, and variable comprises body weight, the body surface area of human body; The structure of the number of plies of clothes, coverage rate, each layer, wherein the structure of each layer comprises thickness, density, fiber composition, whether contains discharge water film and covert material; Wear scene setting and comprise physical activity degree, time and environmental baseline, wherein environmental baseline comprises air themperature, relative humidity, wind speed and radiation temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100258770A CN100568246C (en) | 2008-01-17 | 2008-01-17 | A kind of garments thermal comfort degree display systems towards teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100258770A CN100568246C (en) | 2008-01-17 | 2008-01-17 | A kind of garments thermal comfort degree display systems towards teaching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101226565A CN101226565A (en) | 2008-07-23 |
| CN100568246C true CN100568246C (en) | 2009-12-09 |
Family
ID=39858556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100258770A Expired - Fee Related CN100568246C (en) | 2008-01-17 | 2008-01-17 | A kind of garments thermal comfort degree display systems towards teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100568246C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010020173A1 (en) * | 2008-08-18 | 2010-02-25 | 香港纺织及成衣研发中心 | Emulation system for wet and heat transfer of fabric |
| CN106407668B (en) * | 2016-09-05 | 2019-04-30 | 中山大学 | Sport health emulation and prediction technique and system based on human body themo-physiological model |
| CN106446530B (en) * | 2016-09-05 | 2019-04-26 | 中山大学 | One kind is based on the physiological emulation methods of risk assessment of human motion heat and its system |
| CN106407532A (en) * | 2016-10-18 | 2017-02-15 | 中山大学 | Dressed human body heat and mass transfer parallel simulation method and system |
| CN106650262B (en) * | 2016-12-23 | 2019-05-31 | 中山大学 | Real-time kernel temperature estimation method and system based on personalized thermal conditioning model |
| CN107818206B (en) * | 2017-10-20 | 2021-01-15 | 沈阳建筑大学 | Multi-target analysis method for heat exchange between human body and environment |
| CN108053480B (en) * | 2017-12-08 | 2021-03-19 | 东华大学 | Three-dimensional full-scale dressing human body mesh construction method based on reverse engineering technology |
| CN111340444B (en) * | 2020-02-17 | 2021-09-03 | 斯智信息科技(上海)有限公司 | Interactive scenarized interviewing method, system, device and medium |
| CN112231924B (en) * | 2020-10-26 | 2024-03-26 | 北京服装学院 | Clothing thermal resistance testing technology based on three-dimensional virtual technology |
| CN113288087B (en) * | 2021-06-25 | 2022-08-16 | 成都泰盟软件有限公司 | Virtual-real linkage experimental system based on physiological signals |
-
2008
- 2008-01-17 CN CNB2008100258770A patent/CN100568246C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 人体热湿交换的数值模拟模型. 罗笑南等.计算机辅助设计与图形学学报，第16卷第4期. 2004 |
| 人体热湿交换的数值模拟模型. 罗笑南等.计算机辅助设计与图形学学报，第16卷第4期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101226565A (en) | 2008-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100568246C (en) | A kind of garments thermal comfort degree display systems towards teaching | |
| Huang et al. | Visualization and interaction of finite element analysis in augmented reality | |
| CN109741440A (en) | A kind of interior decoration design system and method based on AR glasses | |
| Li et al. | Research of interactive 3D virtual fitting room on web environment | |
| Jiang et al. | Cloth simulation for Chinese traditional costumes | |
| CN107563490A (en) | A kind of crowd's diversity emulation mode based on concern power model | |
| CN114973922B (en) | Virtual reality teaching system and method for three-dimensional tailoring of clothing | |
| CN106650066A (en) | Simulation method of aircraft contrail simulation system | |
| Hou et al. | Stable adaptive algorithm for Six Degrees-of-Freedom haptic rendering in a dynamic environment | |
| CN110532643A (en) | A method of solving the wind environment of high-rise based on BIM model | |
| Dodoo et al. | Evaluating commodity hardware and software for virtual reality assembly training | |
| Li | Interior design method based on virtual reality technology | |
| Shi et al. | A mixed-depth visual rendering method for bleeding simulation | |
| Liu et al. | Estimating and visualizing thermal comfort level via a predicted mean vote in a BIM system | |
| Bruse | Assessing urban microclimate from the user's perspective-Multi-agent systems as a new tool in urban biometeorology | |
| Xiongjin | Research on Interactive Design of BIM Architectural Space for Teaching Practice | |
| Hou | The application and prospect of virtual reality technology in the future architecture design | |
| Du | Application Research of Human-Machine Interface Design Based on Virtual Reality (VR) Technology | |
| Li | Application of Computer Vision Technology in Environmental Art Design | |
| Wu | Analysis of the Application of Computer Technology in the Design of Interior Three-dimensional House Soft Decoration | |
| CN106844997A (en) | The dynamic modeling method that normal arrangement helicopter stress inverting is matched with parameter | |
| Huang et al. | An Augmented Reality Platform for Interactive Finite Element Analysis | |
| Luo et al. | Education–Oriented Virtual Environment for Clothing Thermal Functional Performance | |
| Xue | Development and Design of the Virtual Design System Based on the Visual Communication | |
| Du et al. | Application of VR Technology in 3D Image Interior Design System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |