32 results about "Thermal manikin" patented technology

An approach to noninvasively, remotely and accurately detect core body temperature in a warm-blooded subject, human or animal, via thermal imaging. Preferred features such as the use of in-frame temperature references, specific anatomical target regions and a physiological heat transfer model help the present invention to overcome pitfalls inherent with existing thermal imaging techniques applied to physiological screening applications. This invention provides the ability to noninvasively, remotely and rapidly screen for diseases or conditions that are characterized by changes in core body temperature. One human application of this invention is the remote screening for severe acute respiratory syndrome (SARS), since fever is a common, early symptom. Other diseases and conditions that affect the core body temperature of humans or animals may also be noninvasively and remotely detected with this invention.

The invention discloses a novel thermal manikin system. The system comprises a manikin body, a body temperature regulating device, a breath regulating device and a sweat regulating device. The body temperature regulating device, the breath regulating device and the sweat regulating device are connected with the manikin body. The body temperature regulating device is used for regulating the body temperature of the manikin body. The breath regulating device is used for regulating the breath of the manikin body. The sweat regulating device is used for regulating the sweat on the body surface of the manikin body. The novel thermal manikin system can have the functions of simulating heating of the body surface, the core temperature, the moisture of the body surface and the breathing process of the human body at the same time, and can be used for various thermal comfort and air quality experiments and human body replacement experiments.

The invention provides an indoor heat environment comfort evaluation thermal manikin system and an indoor heat environment comfort evaluation method. The indoor heat environment comfort evaluation thermal manikin system comprises a thermal manikin, a measuring and control system and an evaluation system. The thermal manikin has good joint motion capability, and has 16 independent measuring and heating control split regions; the split regions sufficiently consider the physiological structure characteristics of a human body and the heat exchange characteristics of the human body in the heat environment with the environment. The indoor heat environment comfort evaluation thermal manikin system has the advantages that the application range is wide; the system can be applied to heat environment in various fields such as civil use, military use, aero-space and navigation; the heat environment parameters can be directly and accurately measured; the heat environment comfort can be objectively evaluated; the test and the evaluation result is stable and accurate; the repeatability is high; the indoor heat environment comfort evaluation thermal manikin system conforms to the real human body heat state; the reasonableness and the reliability are realized.

The invention discloses a semi-transparent simulation experiment platform of a large passenger plane cabin environment. The semi-transparent simulation experiment platform comprises a thermostatic chamber, a thermostatic chamber air conditioning system, a simulation cabin air conditioning system and a real-time data acquisition and monitoring system, wherein a semi-transparent simulation cabin of the passenger plane cabin environment is arranged in the thermostatic chamber. The semi-transparent simulation cabin and seats in the semi-transparent simulation cabin are all designed and installed according to a real cabin size with the ratio of 1:1. Thermal manikins are arranged in the simulation cabin and used for simulating sensible heat and heat dissipation of real persons. The simulation cabin is provided with multiple types of simulation air ports, and disassembling and replacing are convenient. Air distribution forms of the simulation cabin can be changed by opening or closing a valve. By utilizing the air conditioning system of the thermostatic chamber and the air conditioning system of the simulation cabin, diversified experimental conditions can be achieved. Through a computer software platform, real-time data can be monitored and controlled. According to the semi-transparent simulation experiment platform, a flow field in the cabin can be obtained by fully utilizing a PIV technology, and meanwhile the diversified cabin air distribution forms can be achieved. The working condition during the experimental process is stable, and regulating and controlling of temperature and air output are accurate.

A system and method for assessing thermal comfort in an enclosure is disclosed. In one embodiment, a method includes performing a numerical analysis on a calibration enclosure including a thermal manikin in a uniform thermal environment to obtain a surface heat transfer coefficient (hcal) for each body part of the thermal manikin. The method also includes performing a numerical analysis on an enclosure including one or more thermal manikins in a non-uniform thermal environment to obtain a total heat flux (q''T) for each body part of the one or more thermal manikins. The method further includes computing an equivalent temperature (teq) of each body part of the one or more thermal manikins using the obtained associated hcal, the obtained associated q''T, and an associated surface temperature of the body part. Furthermore, the method includes evaluating thermal comfort in the enclosure based on each computed teq.

A high-temperature protective clothing testing experiment system based on a thermal manikin comprises a high-temperature cabin. The thermal manikin is suspended inside the high-temperature cabin, a hot air exhaust system and a high-temperature radiant plate are arranged in the high-temperature cabin and connected with a control box to be controlled, and both the thermal manikin and a detector around the thermal manikin are connected with a manikin control system and a data acquisition system. Protective clothing is put on the manikin, the manikin is heated for high-temperature testing, and the thermal physiological process of a human body is simulated, so that testing results are closer to truth.

The invention relates to an air-filled sweating thermal manikin. A surface layer of the manikin is a micro-pore membrane composite fabric sweating skin. A water filling pipe is arranged in a head part. An air-filled rubber liner is arranged inside the surface layer of the manikin and is matched with the micro-pore membrane composite fabric sweating skin with a certain gap formed. In the gap, a water-retention network fabric is arranged. An air heating system and an air recycling system are disposed in the rubber liner so that uniform distribution of temperature in the whole body of the manikin is formed. The air-filled sweating thermal manikin is light in weight, is stable in size, and can ensure uniform sweating in all zones in the whole body.

The invention discloses a preparation method for non-uniformly perspiring skin applicable to a perspiring fabric thermal manikin. The non-uniformly perspiring skin is composed of a plurality of cut pieces made of waterproof moisture-permeable fabrics, including a head cut piece, a front cut piece, a cut piece and sleeve cut pieces, wherein each cut piece is prepared through blade-coating of liquid and molding silica gel with templates of different hollowed-out areas; the front cut piece is prepared by stitching a left front cut piece and a right front cut piece together; the back cut piece is prepared by stitching a left back cut piece and a right back cut piece together; and the sleeve cut pieces are composed of a left sleeve cut piece and a right sleeve cut piece. The invention has the following characteristics and beneficial effects: the skin applicable to the perspiring fabric thermal manikin in the invention can realize simulation of non-uniform perspiring of different parts of a human body and improves the real-people-simulation degree of experimental results; and the preparation method is also applicable to improvement of conventional preparation processes for skin applicable to the perspiring fabric thermal manikin.

The invention discloses a heat environment comfort evaluation method based on a thermal manikin. The method comprises the following steps of obtaining convection radiation heat exchange between the thermal manikin and the environment; obtaining the human body average skin temperature according to the convection radiation heat exchange; obtaining the equivalent space temperature of the thermal manikin according to the human body average skin temperature; grading the heat environment comfort according to the equivalent space temperature. The heat environment comfort evaluation method based on the thermal manikin provided by the invention has the advantages that the data accuracy of air conditioner comfort evaluation can be improved; the air conditioner comfort evaluation requirements can be met.

The invention discloses a testing device for the temperature rise of far-infrared textiles and a testing method. The testing method is characterized in that a thermal manikin for simulating the use temperature of the real wearing of a human body is introduced, the surface of the thermal manikin has the current more-mature related technical product for simulating a sweating skin layer, the change of the temperature is detected by utilizing an intelligent multipoint average thermometer under the radiation of a far-infrared radiation source, not only is the influence of the external radiation energy considered, but also the influence of the self radiation energy of a human body is also considered; and simultaneously, due to introduction of the thermal manikin, the influence of the individual differences and the psychological factors in a human-body experimental method is eliminated. The testing device and the testing method disclosed by the invention have the advantages that the design is scientific and standard, the credibility of the testing result is high and the temperature-rise performance of the far-infrared textiles can be reasonably reflected.

The invention provides a thermal manikin manufacturing method based on a flexible stretchable heating film and a thermal manikin, and the method comprises the following steps: building a thermal manikin three-dimensional model, and carrying out the partitioning of different parts of the thermal manikin according to the curvature; carrying out curved surface expansion on each part of the thermal manikin in a partitioning manner; designing a stretchable flexible uniform heating film by taking the outline of each curved surface as a boundary; manufacturing a stretchable flexible uniform heating film; and attaching the stretchable flexible uniform heating film to the corresponding partition part of the thermal manikin. The flexible uniform heating device is adopted, the stretchable double-layer circuit is designed according to the shapes of different areas of a human body, curved surface packaging is conducted on the stretchable double-layer circuit through a silicone rubber material, andthe temperature uniformity of the thermal manikin is guaranteed.

The invention belongs to the field of garments, and provides a wearable body-warming dummy and a clothing thermal resistance measuring method; the body-warming dummy comprises a body-warming dummy body, and the body-warming dummy body is hollow inside and is soft and wearable; the body warming dummy body is composed of a plurality of heating subareas which can be independently heated, every two adjacent heating subareas are detachably connected, and the surface temperatures of the heating subareas are respectively set according to the distribution characteristics of the surface temperature ofa human body. The thermal resistance measuring cost of clothes can be greatly reduced, the problems that the overall structure is heavy and inconvenient to move due to the fact that the thermal dummyis made of copper or aluminum or other materials are solved, and the surface temperature of the heating subarea is set according to the distribution characteristic of the surface temperature of a realhuman body. The clothing thermal resistance measurement result is more consistent with the wearing characteristics of a real human body, so that an important reference value is provided for clothingcomfort research and heat retention property test.

The invention relates to a method for measuring the thickness of anair layer under apparel. The method comprises the steps of wearingtheapparel on thermal manikin, turning on the thermal manikin to make the thermal manikin work in constant skin temperature control situation, making the thermal manikin reach a stable state; measuring temperature of each area of apparel surface, eliminating infraredtransmission power of fabric to achieve outer surface temperature of the apparel; calculating inner surface temperature of the apparel according to the outer surface temperature of the apparel; and according to the inner surface temperature of the apparel, the thickness of the air layer under the apparel is calculated by considering infrared thermal radiation between a human body and the appareland infrared transmission of apparel fabric. According to the method, the thickness of the air layer under the apparel can be measured more accurately.

The invention discloses a local thermal-resistance testing system applied to a perspiring fabric thermal manikin. The local thermal-resistance testing system is characterized by comprising an industrial control computer terminal, a local thermal-resistance on-site data acquisition module, a multi-sensor array, a wireless transmission module, a wireless network rendezvous-point module and a cloud server module. The invention has the following characteristics and beneficial effects: with the local thermal-resistance testing system applied to the perspiring fabric thermal manikin in the invention, the advantages of software and hardware technologies and networks developing at a high speed are made full use of; and local thermal-resistance data, humiture data and the like acquired on site are transmitted to a cloud server via a network so as to facilitate analysis, collation and query by experts all over the world, so reliability and data versatility of the local thermal-resistance testing system applied to the perspiring fabric thermal manikin are improved.

The invention discloses a household electrical appliance comfort simulation natural wind test device and a test method. Whether the air outlet of a tested sample reaches the comfort simulation natural wind effect can be assessed. The natural wind simulation test method for the comfort of the household appliance comprises the following steps: firstly, acquiring a wind speed-time curve of the air outlet of the household appliance (such as an air conditioner, an electric fan, an air purifier, a ventilator, a fresh air system, a warm air blower and the like), and then analyzing and calculating the curve to obtain a power spectral density index and a phase diagram width-to-length ratio of the curve; and whether the outlet wind achieves the natural wind effect or not is checked through the power spectrum density index and the phase diagram width-to-length ratio. According to the household appliance comfort simulation natural wind test method, the use comfort of a tested sample is evaluated by checking items such as vertical air temperature difference, blowing feeling index, predicted average thermal feeling index, predicted unsatisfaction rate, temperature uniformity and equivalent temperature of a thermal dummy in multiple laboratories, so that the industry development is guided, the product variety is reasonably developed, and the product quality is improved. And the social requirements can be better met.

The invention discloses a body model thermal manikin system. The system is a test system which can simulate thermal response of a human body at a high temperature, can simulate the processes of heat absorption of the human body, heat conduction among different tissues, heat production, heat regulation, blood heat convection, body surface thermal radiation and sweating, and is used for medical assessment, aviation, performance analysis for a fire hazard and a high temperature environment, human comfort, fabric assessment and environmental measurement. The system comprises the human body thermal body model and a multi-branch blood circulation simulation system, wherein the human body thermal body model has a layered and sectioned body model structure; each layer and each section adopt materials which are similar to human biological tissue thermal characteristics corresponding to the layer; each layer and each section have different thermal physical property parameters; and the multi-branch blood circulation simulation system comprises a power source and a circulation line which is provided with flowing liquid; and the circulation line comprises a multi-caliber arterial system, a multi-caliber venous system, a control valve and a three-way or multi-way pipe for connection.

The invention discloses a preparation method suitable for non-uniform sweating skin of a fabric sweating body warming dummy. The invention consists of multiple pieces made of waterproof and breathable fabrics, including a head piece, a front body piece, a back body piece, and a sleeve piece. Each piece is made of liquid addition silicone through different hollowing processes. The area of ​​the template is scraped. The front body piece is stitched from the left front body piece and the right front body piece; the back body piece is stitched from the left back body piece and the right back body piece; the sleeve piece includes the left sleeve piece and the right sleeve piece. piece. The characteristics and beneficial effects of the present invention are that: the skin prepared according to the present invention and suitable for a fabric sweating body warming dummy can achieve non-uniform sweating in various parts of the fabric sweating body warming dummy and improve experimental results. The degree of simulating real people is also suitable for improving the skin preparation process of fabric sweating body warming dummies.

The invention discloses a system and working method for simulating human body sweating under conditions of a fire scene, including an artificial environment cabin, a warm body dummy, a motion system, a temperature control system in the cabin, a wind speed simulation system and a control center; the motion system is used for Simulate different motion states of the human body, the temperature control system in the cabin is used to simulate the temperature of the fire scene, the wind speed simulation system is used to simulate the wind force of the fire scene, and the thermal manikin is used to simulate the actual sweating of various parts of the human body; Under the influence of motion state, different fire environment temperature and different wind force on the change of fire environment temperature field distribution, the sweating amount and sweat flow distribution of each part of the thermal manikin can be obtained, so as to provide data for the subsequent layout of sweat-absorbing materials in firefighting clothing For reference, the sweat of different parts of firefighters can be absorbed in time when they are rescued in the fire scene, so as to ensure the rescue ability of firefighters.

The invention discloses a wearable bra for measuring the thermal resistance of the bra, and the method comprises the following steps: wearing a wearable electric heating bra on a mannequin, then wearing a bra to be measured, and adjusting and setting the heated part of the wearable electric heating bra according to the style of a bra, so that the heat passing through the bra can be accurately measured, and a heat preservation index of the bra product is further calculated, such as a Crow value. The wearable bra for measuring the thermal resistance of the bra can be worn on a mannequin, then the bra to be tested is put on, and the thermal insulation performance is tested, so that the wearable electric heating bra is closer to the wearing state of a product than fabric testing, and the thermal insulation performance of the bra can be measured by utilizing the wearable electric heating bra, measuring the heat conduction quantity passing through the bra cups and calculating the thermal resistance. The test result is closer to the heat insulation state when a human body wears the bra, the data is more accurate, so that the seasonal environment suitable for the bra is determined, and the wearable electric heating bra is lighter and more convenient to move than a body warming dummy.

The invention discloses a novel thermal manikin system. The system comprises a manikin body, a body temperature regulating device, a breath regulating device and a sweat regulating device. The body temperature regulating device, the breath regulating device and the sweat regulating device are connected with the manikin body. The body temperature regulating device is used for regulating the body temperature of the manikin body. The breath regulating device is used for regulating the breath of the manikin body. The sweat regulating device is used for regulating the sweat on the body surface of the manikin body. The novel thermal manikin system can have the functions of simulating heating of the body surface, the core temperature, the moisture of the body surface and the breathing process of the human body at the same time, and can be used for various thermal comfort and air quality experiments and human body replacement experiments.

The invention discloses a self-balancing type body-warming dummy and a using method thereof, which simulate a sitting human body and arrange an internal heating system and an aerodynamic system in thebody-warming dummy to realize self heat balance, and the body-warming dummy provided by the invention can realize constant power 95W and a human body surface constant temperature function. The constant temperature precision value of the warm dummy depends on the temperature value of an air-conditioned room where the dummy is located and the wind field condition around the dummy, and the maximum precision is + / -1.5 DEG C. Most importantly, the dummy is a heat self-balancing dummy, and the purposes of constant power and constant temperature can be achieved without an external complex control system.

The invention discloses a semi-transparent simulation experiment platform of a large passenger plane cabin environment. The semi-transparent simulation experiment platform comprises a thermostatic chamber, a thermostatic chamber air conditioning system, a simulation cabin air conditioning system and a real-time data acquisition and monitoring system, wherein a semi-transparent simulation cabin of the passenger plane cabin environment is arranged in the thermostatic chamber. The semi-transparent simulation cabin and seats in the semi-transparent simulation cabin are all designed and installed according to a real cabin size with the ratio of 1:1. Thermal manikins are arranged in the simulation cabin and used for simulating sensible heat and heat dissipation of real persons. The simulation cabin is provided with multiple types of simulation air ports, and disassembling and replacing are convenient. Air distribution forms of the simulation cabin can be changed by opening or closing a valve. By utilizing the air conditioning system of the thermostatic chamber and the air conditioning system of the simulation cabin, diversified experimental conditions can be achieved. Through a computer software platform, real-time data can be monitored and controlled. According to the semi-transparent simulation experiment platform, a flow field in the cabin can be obtained by fully utilizing a PIV technology, and meanwhile the diversified cabin air distribution forms can be achieved. The working condition during the experimental process is stable, and regulating and controlling of temperature and air output are accurate.

The invention provides a body-warming dummy for environmental thermal comfort experiment, which adopts 16 electric heating sheets which are reasonably designed and can be mass-produced, and the traditional method of directly winding heating wires on the dummy model by hand. Compared with the heat flux, the production efficiency is greatly improved and the cost is saved; the thickness, width and spacing of the electric heating wire of the heating sheet are uniformly designed according to the heat flow density requirements of each part, and are produced by one-time processing by the chemical etching method of the copper sheet, which can avoid the traditional It is difficult to fully guarantee the production accuracy by laying the heating wire manually; each heating piece is obtained by the method of unfolding the surface of the model, and the double-sided thermally conductive adhesive film is used to ensure the good fit between the heating piece and the surface of the dummy; the electric heating of the heating piece The wire adopts a corrugated design, which makes the heating piece have a certain ductility; the input voltage of the electric heating wire is 24V, which is within the safe voltage range of the human body; the heating piece adopts a three-layer film structure.

The invention relates to a system and a method for testing thermal resistance of a life jacket in water. The system comprises a thermal dummy used for supplying heat to the life jacket; the simulated water environment test box is used for providing a real sea area environment for the thermal manikin; the water flow internal circulation water pump is used for simulating the actual seawater circulation flow state; the heat flux density and temperature measuring system is used for detecting the heat flux transferred outwards from the skin surface of the thermal dummy and measuring the temperature inside and outside the life jacket; the data acquisition system is used for acquiring the heat flow and the temperature inside and outside the life jacket; the LabVIEW data detection and analysis system is used for outputting the thermal resistance value of the life jacket according to the received heat flow and the temperature inside and outside the life jacket; and the temperature sensor is used for monitoring and setting the core temperature of the thermal manikin and the skin area of each part. According to the invention, thermal resistance test can be carried out in water, the test result is more in line with real human wearing characteristics, and the accuracy of the thermal resistance measurement result is improved.

The invention provides a warm dummy for an environment thermal comfort experiment. The warm dummy is characterized in that 16 electric heating sheets which are reasonably designed and can be produced in batches are adopted, so that compared with a traditional method that heating wires are directly wound on a dummy model manually, the manufacturing efficiency is greatly improved, and the cost is saved; the thickness, width and spacing of the electric heating wire of the heating sheet are uniformly designed according to the heat flux density requirements of each part, and the heating sheet is processed and generated at one time by adopting a copper sheet chemical etching method, so that the problem that the manufacturing precision is difficult to comprehensively guarantee in a traditional manual heating wire laying mode can be avoided; each heating sheet is obtained by utilizing a model curved surface unfolding method, and by virtue of a double-sided heat-conducting adhesive film, the good fitting property of the heating sheets and the surface of the dummy is ensured; the electric heating wire of the heating sheet adopts a corrugated design, so that the heating sheet has certain ductility; the input voltage of the electric heating wire is 24V and is within the safe voltage range of a human body; and the heating sheet adopts a three-layer film type structure.

A system and method for assessing thermal comfort in an enclosure is disclosed. In one embodiment, a method includes performing a numerical analysis on a calibration enclosure including a thermal manikin in a uniform thermal environment to obtain a surface heat transfer coefficient (heal) for each body part of the thermal manikin. The method also includes performing a numerical analysis on an enclosure including one or more thermal manikins in a non-uniform thermal environment to obtain a total heat flux (q" T ) for each body part of the one or more thermal manikins. The method further includes computing an equivalent temperature (t eq ) of each body part of the one or more thermal manikins using the obtained associated h cal , the obtained associated q" T , and an associated surface temperature of the body part. Furthermore, the method includes evaluating thermal comfort in the enclosure based on each computed t eq .

The invention relates to a method for measuring the thickness of anair layer under apparel. The method comprises the steps of wearingtheapparel on thermal manikin, turning on the thermal manikin to make the thermal manikin work in constant skin temperature control situation, making the thermal manikin reach a stable state; measuring temperature of each area of apparel surface, eliminating infraredtransmission power of fabric to achieve outer surface temperature of the apparel; calculating inner surface temperature of the apparel according to the outer surface temperature of the apparel; and according to the inner surface temperature of the apparel, the thickness of the air layer under the apparel is calculated by considering infrared thermal radiation between a human body and the appareland infrared transmission of apparel fabric. According to the method, the thickness of the air layer under the apparel can be measured more accurately.