Head-mounted VR equipment heat experience test device and test method

Abstract

The invention relates to the technical field of head-mounted VR equipment thermal comfort testing, and discloses a head-mounted VR equipment thermal experience testing device base, which comprises a base, a shell part heating assembly, a replaceable shell, a temperature measurement sensor, a controller and a wearing piece, and is characterized in that the shell part heating assembly covers the outer side of the shell part of the base; the replaceable shell is detachably installed on the shell part of the base and covers the shell part heating assembly. The temperature measurement sensors are uniformly distributed on the outer surface of the replaceable shell; the shell part heating assembly and the temperature measurement sensor are both in signal connection with the controller; the base is fixed to the head of a tester through the wearing piece. The device has the advantages that the replaceable shell is heated through the shell part heating assembly, and a tester makes contact with different areas of the replaceable shell so that the contact thermal comfort of the human body to the different areas of the replaceable shell at different temperatures can be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal comfort testing of head-mounted VR equipment, and in particular to a thermal experience testing device and a testing method for head-mounted VR equipment. Background Art

[0002] Head-mounted VR devices are VR glasses, which can provide the wearer with a 360-degree immersive visual experience. In reality, when the VR device is running, it will dissipate heat through the shell. When the user wears the VR device to watch a movie or play a game, the device will be misplaced. Therefore, the position of the VR device needs to be adjusted manually. At this time, the user needs to touch the external shell. According to the user's habits, the user will touch the shell in different positions. At this time, if the shell at the position where the user touches is overheated, it will affect the user experience.

[0003] In existing solutions, designers usually set the heat source layout and contact part materials of VR devices based on experience. However, the heat source layout and contact part materials set based on empirical values ​​may not be suitable for the actual needs of most users. Summary of the invention

[0004] The purpose of the present invention is to provide a head-mounted VR device thermal experience testing device to solve the problem that the heat source layout and contact part material set according to empirical values ​​in the prior art are not suitable for the actual needs of most users.

[0005] Another object of the present invention is to provide a thermal comfort test method for outer shell contact, a thermal comfort test method for mask, and a thermal comfort test method for facial cavity circulation ventilation volume based on this head-mounted VR device thermal experience test device.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A head-mounted VR device thermal experience test device, comprising:

[0008] A base, wherein the base has a shell portion away from the human face and a facial cavity portion close to the human face; the base is the appearance of the current mainstream VR device, and is used as a main body to support other components;

[0009] An outer shell heating component, wherein the outer shell heating component covers the outer side of the base outer shell;

[0010] A replaceable shell, which is detachably mounted on the shell portion of the base and covers the shell portion heating component; wherein the replaceable shell body is connected to the VR base through a buckle, and the material can be replaced according to needs, such as plain leather, metal, glass, plastic, etc.;

[0011] Temperature measurement sensors, the temperature measurement sensors being evenly distributed on the outer surface of the replaceable housing;

[0012] A controller, wherein the housing heating assembly and the temperature measuring sensor are both connected to the controller signal;

[0013] The base is fixed to the head of the tester through the wearing piece. Through this arrangement, the replaceable shell is heated by the shell heating component, and the tester contacts different areas of the replaceable shell to test the thermal comfort of the human body to different areas of the replaceable shell at different temperatures.

[0014] Furthermore, it also includes a face cavity heating component and a replaceable mask, wherein the face cavity heating component covers the outside of the face cavity of the base; the replaceable mask is detachably mounted on the face cavity of the base; the surface of the face cavity heating component is evenly distributed with temperature measurement sensors, and the face cavity heating sensor is connected to the controller. By setting the face cavity heating component, the heating condition of the face cavity during operation of the VR device can be simulated.

[0015] Furthermore, it also includes a humidification component, which includes a humidification pipeline, a humidification nozzle, a humidity sensor, a water storage tank and a hydrophilic core; the humidification pipeline and the water storage tank are both arranged in the inner cavity of the base, the face cavity of the base is provided with an air outlet and an air return port facing the face, the air outlet and the air return port are both connected to the humidification pipeline, the humidification nozzle is located in the humidification pipeline, the humidification nozzle is connected to the controller signal, the humidification nozzle is connected to the water storage tank through the hydrophilic core to generate water mist to be discharged through the air outlet, and the humidity sensors are evenly distributed on the outer surface of the heating component of the face cavity. Through this arrangement, the humidity of the microenvironment of the inner cavity of the replaceable mask can be adjusted.

[0016] Furthermore, a sealable water filling port is provided on the base, through which water is filled into the water storage tank.

[0017] Furthermore, it also includes a circulating fan, which is arranged in the humidification pipeline to quickly blow out the water mist generated by the humidification nozzle through the air outlet.

[0018] Furthermore, the humidifying nozzle is an ultrasonic vibration humidifying nozzle.

[0019] Furthermore, a variable wind speed component is included, and the variable wind speed component includes a fan; a vent is provided in the surface cavity of the base, and the fan is arranged in the vent to blow air into the interior of the base or to discharge the air in the base. By arranging the variable wind speed component, the ventilation wind speed of the surface cavity can be adjusted.

[0020] Furthermore, it also includes a rotating shaft, and the fan is installed in the vent through the rotating shaft so that the fan can be turned over.

[0021] Furthermore, it also includes a variable speed motor, which is connected to the fan to control the rotation of the fan, and the variable speed motor is connected to the controller signal.

[0022] Furthermore, a dehumidification component is included, the dehumidification component includes a dehumidification material and an electrically controlled gate, the humidification pipe section is provided with a dehumidification port, the dehumidification material covers the dehumidification port and is located outside the humidification pipe, and the electrically controlled gate is located inside the humidification pipe and is used to open or close the dehumidification port. By setting up the dehumidification component, the microenvironment in the facial cavity can be dehumidified.

[0023] Furthermore, it also includes a dehumidifier regeneration device, which includes an electric heating plate. The electric heating plate is arranged close to the dehumidification material and is used to heat and regenerate the dehumidification material.

[0024] Furthermore, the electric heating plate is also coordinated with a circulating fan to carry away the moisture precipitated by heating through the circulating air.

[0025] Furthermore, it also includes a pressure sensor, which is evenly distributed at the connection between the replaceable mask and the base, and the pressure sensor is connected to the controller signal. By setting the pressure sensor, the comfortable pressure on the face of the tester wearing the VR device can be measured.

[0026] Furthermore, the outer shell heating assembly includes an outer shell insulation layer and an outer shell heating layer; the outer shell insulation layer covers the outer side of the base outer shell, and the outer shell heating layer covers the outer side of the outer shell insulation layer. By providing the outer shell heating layer, the replaceable outer shell can be heated, so as to perform the outer shell contact thermal comfort test, and at the same time, providing the outer shell insulation layer can prevent the heat generated by the outer shell heating layer from being conducted to the base, so as to avoid affecting other components in the base, or the wearing comfort of the facial cavity, or the thermal comfort test of the facial cavity.

[0027] Furthermore, the outer shell heating layer includes a plurality of electric heating blocks and thermal insulation strips; the plurality of electric heating blocks are evenly distributed on the outer surface of the outer shell thermal insulation layer, and there is a gap between each two adjacent electric heating blocks, and the thermal insulation strip is arranged in the gap between adjacent electric heating blocks to prevent heat exchange between adjacent electric heating blocks.

[0028] Furthermore, the face cavity heating assembly includes a face cavity insulation layer, a face cavity heating layer and a face cavity shell; the face cavity insulation layer covers the outside of the face cavity of the base, the face cavity heating layer covers the outside of the face cavity insulation layer, the face cavity shell is buckled on the face cavity of the base and is located on the outside of the face cavity heating layer, and the temperature measurement sensor is evenly distributed on the outer surface of the face cavity shell. By providing the face cavity heating layer, the air in the face cavity can be heated to perform a thermal comfort test of the face cavity, and by providing the face cavity insulation layer, the heat generated by the face cavity heating layer can be blocked from being conducted to the base to avoid affecting other components in the base.

[0029] Furthermore, the structure of the surface cavity heating layer is the same as that of the outer shell heating layer, and also includes a plurality of electric heating blocks and thermal insulation strips; the plurality of electric heating blocks are evenly distributed on the outer surface of the surface cavity insulation layer, and there is a gap between each two adjacent electric heating blocks, and the thermal insulation strip is arranged in the gap between adjacent electric heating blocks to prevent heat exchange between adjacent electric heating blocks.

[0030] The controller in this embodiment can cooperate with the temperature measurement sensor to control the opening and closing of the electric heating block and the heating load by judging the size of the set temperature and the real-time temperature. It can also cooperate with the humidity sensor to control the opening and closing of the humidification or electric control gate, the electric heating plate, the amount of spray, and the contact area between the adsorbent and the air by judging the size of the set humidity and the real-time humidity.

[0031] A method for testing the contact thermal comfort of an outer shell of a head-mounted VR device is completed based on a head-mounted VR device thermal experience testing device, and includes the following steps:

[0032] S101, setting the ambient temperature and humidity for user experience;

[0033] S201, select the replaceable shell material to be tested, and fix the selected replaceable shell on the base.

[0034] S301, dividing the replaceable housing into seven areas, and labeling each area for distinction;

[0035] S401, adjusting the replaceable housing of each area to a specified temperature through a controller;

[0036] S501, conducting a thermal experience experiment in a user experience manner, and recording different users' thermal sensation evaluations on different areas of the replaceable housing;

[0037] S601, repeating S401 and S501 until the thermal sensation evaluation of different areas of the replaceable housing by different users at different temperatures is completed;

[0038] S701. Statistically analyze the thermal sensation evaluation values ​​of different areas of the replaceable outer shell at different temperatures for different users, so as to find the temperature threshold of the replaceable outer shell made of different materials that meets 80% of the users. By comparing the temperature thresholds of different materials, find the best material suitable for the outer shell and the heat source layout of the VR device.

[0039] The adjustable temperature range in S401 is 0 to 55° C., and the setting step length of the temperature adjustment is 2° C.

[0040] A method for testing the thermal comfort of a head-mounted VR device mask is based on a head-mounted VR device thermal experience testing device and includes the following steps:

[0041] Z101. Setting the initial temperature and initial humidity of the microenvironment in the cavity of the replaceable mask for user experience;

[0042] Z201. Select the replaceable mask material to be tested and fix the selected replaceable mask on the base;

[0043] Z301, adjust the cavity microenvironment temperature to a set temperature through a controller, and adjust the relative humidity at this set temperature;

[0044] Z401. Conduct thermal comfort experience test using user experience, and record the thermal comfort evaluation values ​​of different users under masks of different materials and different micro-environment temperature and humidity;

[0045] Z501. Statistical analysis is performed on the thermal comfort evaluation values ​​of different users for masks made of different materials, and the temperature and humidity thresholds of masks made of different materials that meet the needs of 80% of users are found. By comparing the temperature and humidity thresholds of different materials, the best material for the mask is found.

[0046] Among them, in Z301, the set temperatures of the microenvironment in the cavity are 25° C., 30° C., 35° C., and 40° C. At each set temperature, the relative humidity of the microenvironment in the cavity is adjusted with a relative humidity of 30% as the starting point and a step length of 10%.

[0047] A method for testing the thermal comfort of the circulating ventilation volume of the face cavity of a head-mounted VR device is completed based on a head-mounted VR device thermal experience testing device, and includes the following steps:

[0048] X101. Setting the initial temperature and initial humidity of the microenvironment of the inner cavity of the replaceable mask for user experience;

[0049] X201, set the ventilation mode of the vents;

[0050] X301. Adjust the cavity microenvironment temperature to the set temperature through the controller, adjust the relative humidity to 40%, 50%, 60%, 70%, 80%, 90% at the set temperature, and adjust the wind speed of the vents at different relative humidities;

[0051] X401, conduct thermal comfort experience test using user experience method, and record the thermal comfort evaluation of different wind speeds under micro-environments with different humidity;

[0052] X501. Through statistical methods, find the wind speed threshold that meets 80% of users in microenvironments with different temperatures and humidities. The purpose is to guide the fan control logic of the VR device vents. Under this control logic, the device can adjust the fan speed according to the wind speed thresholds at different temperatures and humidities to meet the heat and humidity needs of users.

[0053] Among them, the ventilation modes of the vents in X201 are top-in and bottom-out, bottom-in and top-out, left-in and right-out, or right-in and left-out.

[0054] In X301, the set temperatures are 25°C, 30°C, 35°C, 40°C, and 45°C, and the relative humidity is adjusted at each set temperature.

[0055] The present invention has the following advantages over the prior art:

[0056] 1. The head-mounted VR device thermal experience test device of the present invention includes a base, an outer shell heating component, a replaceable outer shell, a temperature measurement sensor and a controller, wherein the base is consistent with the appearance of the current mainstream VR device, and serves as the main body to support other components, the outer shell heating component is arranged on the outer shell of the base, and the replaceable outer shell is replaceably buckled on the outer surface of the outer shell heating component, and the replaceable outer shell can be replaced with different materials according to needs, and the temperature measurement sensor is distributed on the outer surface of the replaceable outer shell; the replaceable outer shell is heated by the outer shell heating component, and the tester contacts different areas of the replaceable outer shell to test the human body's contact thermal comfort with different areas of the replaceable outer shell at different temperatures. The device can be used to find the best material for the outer shell and the heat source layout of the VR device, avoiding the situation that designers usually set the heat source layout and contact part material of the VR device based on experience, which is not suitable for the actual needs of most users.

[0057] 2. The head-mounted VR device thermal experience test device of the present invention is also provided with a face cavity heating component, a replaceable mask and a humidification component. The face cavity heating component is arranged in the face cavity of the base, and the replaceable mask is replaceably arranged on the outside of the face cavity heating component. The humidification component is arranged in the base to adjust the humidity of the microenvironment in the cavity of the replaceable mask. The temperature and humidity of the microenvironment in the cavity of the replaceable mask are adjusted by the face cavity heating component and the humidification component, and the thermal comfort evaluation values ​​of different users under different microenvironment temperatures and humidities under masks of different materials are measured, so as to find the best material for the mask.

[0058] 3. The head-mounted VR device thermal experience test device of the present invention is also provided with a variable wind speed component, which can blow air into the base or exhaust the air in the base. The temperature and humidity of the microenvironment in the cavity of the replaceable mask are adjusted by the face cavity heating component and the humidification component, and the wind speed of the vent under different relative temperature and humidity is adjusted by the variable wind speed component, and the thermal comfort evaluation of different users on different ventilation wind speeds under different temperature and humidity is measured, so as to find the wind speed threshold that satisfies 80% of users under microenvironments with different temperature and humidity. This guides the fan control logic of the VR device vent. Under this control logic, the device can adjust the fan speed according to the wind speed thresholds of different temperature and humidity to meet the user's heat and humidity needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 Schematic diagram of the structure of a thermal experience test device for a head-mounted VR device in an embodiment of the present invention;

[0060] Figure 2 It is a left view of the thermal experience testing device for a head-mounted VR device in an embodiment of the present invention;

[0061] Figure 3 This is a schematic diagram of the mask structure of the head-mounted VR device thermal experience test device in an embodiment of the present invention;

[0062] Figure 4 It is a schematic structural diagram of a replaceable mask in a thermal experience testing device for a head-mounted VR device in an embodiment of the present invention;

[0063] Figure 5 It is a structural schematic diagram of a humidification component in a thermal experience testing device for a head-mounted VR device in an embodiment of the present invention;

[0064] Figure 6 It is a left cross-sectional view of a humidification component in a thermal experience testing device for a head-mounted VR device in an embodiment of the present invention;

[0065] Figure 7 It is a cross-sectional view of a humidification component in a thermal experience testing device for a head-mounted VR device in an embodiment of the present invention;

[0066] Figure 8This is a schematic diagram of a head mounted VR device thermal experience testing device during testing in an embodiment of the present invention;

[0067] Fig. 9 This is a schematic diagram of the regions of the replaceable housing in Example 1 of the present invention;

[0068] Fig.10 This is a record table of the contact thermal comfort test of the outer shell of the head-mounted VR device in Example 1 of the present invention;

[0069] Fig.11 This is a reference diagram of subjective voting values ​​in the contact thermal comfort test of the outer shell of a head-mounted VR device in Example 1 of the present invention;

[0070] Fig.12 This is a record table of the thermal comfort test of the head-mounted VR device mask in Example 2 of the present invention.

[0071] Fig.13 This is a record table of the thermal comfort test of the circulating ventilation volume of the face cavity of the head-mounted VR device in Example 3 of the present invention.

[0072] In the figure: 1. base; 101. outer shell; 102. face cavity; 2. replaceable outer shell; 3. subject; 4. controller; 5. wearable component; 6. replaceable mask; 7. fan; 8. subject; 9. humidification duct; 901. air outlet; 902. return air outlet; 10. humidification nozzle; 11. humidity sensor; 12. water storage tank; 13. hydrophilic core; 14. circulating fan; 15. dehumidification material; 16. electric control gate; 17. pressure sensor; 18. outer shell insulation layer; 19. outer shell heating layer; 20. electric heating block; 21. insulation strip. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0075] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0076] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further discussed and described in detail in the description of the subsequent drawings.

[0077] Embodiment 1:

[0078] Thermal comfort is a very important part of ergonomics. With the official arrival of the design era centered on "people", the thermal comfort of VR equipment has attracted more and more attention from consumers. The thermal experience can be divided into sensible heat and latent heat (humidity). Sensible heat is mainly reflected in the heat generated by the shell due to the internal heat dissipation of the VR equipment. When the human hand touches it, it will produce a contact thermal comfort experience, as well as the thermal experience of the closed microenvironment formed by the VR equipment and the human face. The latent heat is mainly reflected in the stuffy experience of the humidity of the microenvironment on the human face. Whether it is sensible heat experience or latent heat experience, it is heat exchange with human skin. The thermal comfort of human skin is affected by regional climate and race. Therefore, when developing VR equipment, it is necessary to establish a specific thermal comfort evaluation model for people in different regions to meet the human characteristics of potential users in the region, increase the comfort of VR equipment, increase sales and establish a good reputation among users.

[0079] The shape of the head-mounted VR device thermal experience test device in the present invention is similar to the appearance of mainstream VR devices on the market. In actual situations, when the VR device is running, it will dissipate heat outward through the shell. When the user wears the VR device to watch a movie or play a game, the device will be misplaced, so the position of the VR device needs to be manually adjusted. At this time, the user needs to contact the external shell, and the heat source distribution of the external shell will affect the user's experience. The head-mounted VR device thermal experience test device is used to test the thermal sensation threshold of the human hand and arm under different contact forms, and then guide the heat source layout of the VR device under different contact postures.

[0080] For electronic products that come into contact with the human body, the two most important temperature parameters are the maximum temperature parameter and the suitable temperature range. The maximum temperature refers to the highest temperature that a person can accept under different forms of contact. The maximum temperature is an important parameter that needs to be referred to when designing VR equipment. The shell of the VR equipment thermal experience test device can be set to different temperatures to measure the maximum temperature that the human hand and arm can tolerate. The suitable temperature range is measured by evaluating the thermal sensation of the subjects at different ambient temperatures. The selection of the suitable temperature range is directly related to whether the user can use the VR device comfortably. In the existing scheme, designers usually set the heat source layout and contact part material of the VR device based on experience. However, the parameters set according to the empirical values ​​may not be suitable for the actual needs of most users.

[0081] The following is an introduction to the thermal experience test device of the head-mounted VR device in the present invention:

[0082] like Figure 1-4 As shown, a head-mounted VR device thermal experience test device includes: a base 1, a shell heating component, a replaceable shell 2, a temperature measurement sensor, a controller 4 and a wearing piece 5; wherein the base 1 is the appearance of the current mainstream VR device, and is used as a main body to support other components. The base 1 has a shell part 101 away from the human face and a facial cavity part 102 close to the human face; the shell heating component covers the outer side of the shell part 101 of the base 1; the replaceable shell 2 is detachably installed on the shell part 101 of the base 1, and covers the shell heating component; wherein the replaceable shell body 2 is connected to the VR base 1 by a buckle, and the material can be replaced according to needs, such as plain leather, metal, glass, plastic, etc., and the replaceable shell can be set Test the thermal comfort of human body to different materials; temperature measuring sensors are evenly distributed on the outer surface of replaceable shell 2, and are used to measure the surface temperature of replaceable shell 2; the shell heating component and the temperature measuring sensor are both connected with the controller 4 by signal; the heating temperature of the shell heating component can be adjusted by the controller 4, and the actual temperature of the outer surface of replaceable shell 2 can be fed back to the controller by the temperature measuring sensor, and the set temperature and the actual temperature can be displayed by the controller; the set temperature and the actual temperature can also be displayed on the outer surface of the base 1, and the base 1 is fixed to the head of the tester by the wearing part 5, and the wearing part 5 can select the existing wearing bracket or wearing strap, the bracket is made of hard plastic, and the strap is made of cotton spring belt.

[0083] In the present invention, the replaceable outer shell is heated by the outer shell heating component, and the tester touches different areas of the replaceable outer shell to test the thermal comfort of the human body to different areas of the replaceable outer shell at different temperatures. The device can be used to find the best material for the outer shell and the heat source layout of the VR device, avoiding the situation where the designer usually sets the heat source layout and contact part material of the VR device based on experience, which is not suitable for the actual needs of most users.

[0084] Specifically, Figure 1 As shown, the outer shell heating assembly includes an outer shell insulation layer 18 and an outer shell heating layer 19; the outer shell insulation layer 18 covers the outer side of the outer shell 101 of the base 1, and the outer shell heating layer 19 covers the outer side of the outer shell insulation layer 18. By setting the outer shell heating layer 19 to heat the replaceable outer shell 2, the heating state of different VR devices during operation can be simulated, so as to perform the outer shell contact thermal comfort test. At the same time, the outer shell insulation layer 18 can prevent the heat generated by the outer shell heating layer 19 from being conducted to the base 1, so as to avoid affecting other components in the base 1, or the wearing comfort of the face cavity 102, or the thermal comfort test of the face cavity.

[0085] Among them, the outer shell heating layer 19 includes a plurality of electric heating blocks 20 and thermal insulation strips 21; the plurality of electric heating blocks 20 are evenly distributed on the outer surface of the outer shell thermal insulation layer 18, and there is a gap between each two adjacent electric heating blocks 20, and the thermal insulation strips 21 are arranged in the gap between adjacent electric heating blocks 20 to prevent heat exchange between adjacent electric heating blocks 20. In actual use, the electric heating block 20 is selected as a small square electric heating block. The purpose of using a smaller electric heating block is to effectively transition small electric heating in special parts. In order to better simulate the heating conditions of different parts, each electric heating block 20 has a thermal insulation strip 21 on the periphery to prevent mutual influence caused by heat exchange. Heat can only be transferred to the outside through the replaceable outer shell 2 in a direction perpendicular to the surface.

[0086] The principle of the controller of the electric heating block 20 is as follows: after the target temperature is set, the controller 4 will measure and determine the difference between the current temperature and the target temperature through the temperature measurement sensor. When the difference is large, the electric heating block 20 works at full load. When the target temperature is reached, the controller 4 changes the strategy and controls the load of the electric heating block 20 according to the ambient temperature and the heat dissipation of the target temperature of the replaceable shell 2, so that the temperature of the replaceable shell 2 remains at the target temperature.

[0087] In this embodiment, it also includes a face cavity heating component and a replaceable mask 6, the face cavity heating component covers the outside of the face cavity of the base; the replaceable mask 6 is detachably mounted on the face cavity of the base; the surface of the face cavity heating component is evenly distributed with temperature measurement sensors, and the face cavity heating sensor is connected to the controller. By setting the face cavity heating component, the heating condition of the face cavity during operation of the VR device can be simulated.

[0088] Among them, one side of the replaceable mask 6 is connected to the base 1 through a buckle, and the material can be replaced according to needs, such as foam material, silicone, leather, gauze cloth, nylon material, inert breathable cotton, thermoplastic elastomer material, silicone resin, thermoplastic polyurethane elastomer rubber, etc., and the other side is in contact with the face of the subject. When wearing the VR device, the replaceable mask 6 can buffer the pressure between the human face and the VR base, and the material is replaceable, so masks of different materials can be tested.

[0089] Specifically, the face cavity heating assembly includes a face cavity insulation layer, a face cavity heating layer and a face cavity shell (not shown in the figure); the face cavity insulation layer covers the outside of the face cavity of the base, the face cavity heating layer covers the outside of the face cavity insulation layer, the face cavity shell is buckled on the face cavity 102 of the base 1 and is located on the outside of the face cavity heating layer, and the temperature measurement sensor is evenly distributed on the outer surface of the face cavity shell. By setting the face cavity heating layer, the heating conditions of the face cavity during operation of different VR devices can be simulated, so as to conduct a thermal comfort test of the face cavity. By setting the face cavity insulation layer, the heat generated by the face cavity heating layer can be blocked from being transferred to the base to avoid affecting other components in the base.

[0090] The structure of the surface cavity heating layer is the same as that of the outer shell heating layer 19, and also includes a plurality of electric heating blocks 20 and thermal insulation strips 21; the plurality of electric heating blocks 20 are evenly distributed on the outer surface of the surface cavity thermal insulation layer, and there is a gap between each two adjacent electric heating blocks 20, and the thermal insulation strips 21 are arranged in the gap between adjacent electric heating blocks 20 to prevent heat exchange between adjacent electric heating blocks. In actual use, the electric heating block 20 is selected as a small square electric heating block. The purpose of using a small electric heating block is to effectively transition the small electric heating in a special part. In order to better simulate the heating conditions of different parts, each electric heating block 20 has a thermal insulation strip 21 on the periphery to prevent mutual influence caused by heat exchange, and heat can only be transferred to the outside through the replaceable shell 2 in a direction perpendicular to the surface. Among them, the temperature measurement sensor is composed of an ultra-fine thermocouple, which is embedded in the surface of the replaceable shell and the surface cavity shell, and the real-time temperature of the surface of different partitions can be displayed through the controller 4.

[0091] like Figure 5-Figure 8As shown, the present embodiment also includes a humidification component, which includes a humidification pipe 9, a humidification nozzle 10, a humidity sensor 11, a water storage tank 12 and a hydrophilic core 13; the humidification pipe 9 and the water storage tank 12 are both arranged in the inner cavity of the base 1, and the face cavity of the base 1 is provided with an air outlet 901 and an air return port 902 facing the face, and the air outlet 901 and the air return port 902 are both connected to the humidification pipe 9, the humidification nozzle 10 is located in the humidification pipe, the humidification nozzle 10 is connected to the controller 4 by signal, the humidification nozzle 10 is connected to the water storage tank 12 through the hydrophilic core 13, so as to generate water mist and discharge it through the air outlet 901, and the humidity sensor 11 is evenly distributed on the outer surface of the heating component of the face cavity, and the real-time relative humidity of different positions of the face cavity can be displayed by the controller 4. The microenvironment of the inner cavity of the replaceable mask is humidified by the humidification component. Among them, a circulating fan 14 is also provided in the humidification pipe 9 to quickly blow out the water mist generated by the humidification nozzle 10 through the air outlet 901. The humidification nozzle 10 is an ultrasonic vibration humidification nozzle. In the specific implementation, the position and number of the air outlet 901 are not limited. The controller 4 controls the humidification nozzle 10 to work, generates water mist in the humidification pipe 9, and then the circulating fan 14 blows the water mist out through the air outlet 901, thereby humidifying the microenvironment of the cavity of the replaceable mask. The humidification component adopts an isenthalpic humidification method, using the waste heat of the air to evaporate the water mist. In order to prevent the water mist from splashing directly onto the face of the person, a humidification pipe 9 is added. The humidification process is completed inside this pipe, and the circulating fan 14 circulates and humidifies the air in the microenvironment of the cavity.

[0092] Specifically, the base 1 is also provided with a sealable water filling port, through which water is filled into the water storage tank 12 .

[0093] In this embodiment, a variable wind speed component is also included, and the variable wind speed component includes a fan 7; a vent is provided in the surface cavity of the base, and the fan is arranged in the vent to blow air into the inside of the base or discharge the air in the base. By setting the variable wind speed component, a cavity microenvironment with different ventilation circulation amounts can be created. The fan is installed in the vent through a rotating shaft so that the fan can be flipped.

[0094] In a specific implementation, the number of fans is 6, which are distributed in the upper, lower, left and right parts of the base surface cavity 102 in the form of 2, 2, 1, 1. Each fan is flippable, and can blow wind from the outside of the base to the inside, or from the inside of the base to the outside of the base. Each of the present embodiments may also include a variable speed motor, which is connected to the fan 7 to control the rotation of the fan 7, and the variable speed motor is connected to the controller 4 by signal. The specific fan 7 can be controlled to work by the variable speed motor, and can also be controlled to rotate by the pressure difference between the inside and outside of the base 1.

[0095] In this embodiment, a dehumidification component is also included, and the dehumidification component includes a dehumidification material 15 and an electric control gate 16. The humidification pipe section 9 has a dehumidification port, and the dehumidification material 15 covers the dehumidification port and is located outside the humidification pipe 9. The electric control gate 16 is located inside the humidification pipe 9 and is used to open or close the dehumidification port. By setting the dehumidification component, the microenvironment in the facial cavity can be dehumidified.

[0096] It also includes a dehumidifier regeneration device, which includes an electric heating plate (not shown in the figure), which is arranged near the dehumidification material 15 and is used to heat and regenerate the dehumidification material 15. The electric heating plate also cooperates with the circulating fan 14 to take away the moisture precipitated by heating through the circulating wind. In specific implementation, the dehumidification material is distributed on both sides of the pipeline, and the dehumidification regeneration device is distributed around it. When the test is stopped, the dehumidification regeneration device will start to heat and regenerate the adsorbent dehumidifier; the dehumidification material can be an existing silica gel adsorbent.

[0097] This embodiment also includes a pressure sensor 17, which is evenly distributed at the connection between the replaceable mask 6 and the base 1, and the pressure sensor 17 is connected to the controller 4 by signal. The pressure sensor 17 can be used to measure the comfortable pressure on the face of the tester wearing the VR device. The pressure sensor 17 is set at the connection between the replaceable mask 6 and the VR base, and is symmetrically distributed on the left and right.

[0098] like Figure 8-Figure 9 As shown, this embodiment also provides a method for testing the thermal comfort of the outer shell of a head-mounted VR device. The method is based on a thermal experience test device for head-mounted VR devices. The method is a user experience method and requires the recruitment of a large number of subjects 3. The ratio of subjects should conform to the ratio of VR users, and the ratio of teenagers to young people and middle-aged to elderly people is 8:10:2:1. First, the user's contact thermal comfort experience test method for the outer shell is used. When the user uses VR glasses to watch movies, the device will be adjusted due to the misalignment of the wearing position during the game. At this time, it is inevitable to contact the outer shell of the VR glasses. If the temperature of the operating outer shell is high, it will affect the user's experience. Therefore, a subjective test of a large sample of the population is required to find the comfortable temperature range of the outer shell for the population. The test steps are as follows:

[0099] S101, setting the ambient temperature and humidity for user experience;

[0100] S201, select the replaceable shell material to be tested, and fix the selected replaceable shell on the base.

[0101] S301, divide the replaceable housing into seven areas, and label each area, namely A, B, C, D, E, F, G for distinction (refer to Fig. 9); The replaceable shell is divided into 7 different areas according to different positions. Because different parts of the human hand are sensitive to heat at different positions when in contact with the hand, the replaceable shell is divided into different areas to set the temperature to test its contact thermal comfort. Six temperature sensors are evenly distributed in each area, and the remote control device (controller) displays the average temperature of the six sensors;

[0102] S401, the tester 8 adjusts the replaceable housing of each area to the specified temperature through the controller; wherein, the adjustable temperature range is set to 0-55°C, and the setting step of the temperature adjustment is 2°C. The controller determines the size of the set temperature and the real-time temperature, controls the opening and closing of the electric heating block and the heating load, and the temperature adjustment can be directly adjusted by adjusting the temperature adjustment button on the base or by remote control through the controller, and the adjustment method can be selected according to the test scene requirements.

[0103] S501, after the temperature distribution is adjusted, a thermal experience experiment is conducted in a user experience manner to record different users' thermal sensation evaluations on different areas of the replaceable housing;

[0104] S601, repeating S401 and S501 until the thermal sensation evaluation of different areas of the replaceable housing by different users at different temperatures is completed;

[0105] S701. Statistically analyze the thermal sensation evaluation values ​​of different areas of the replaceable outer shell at different temperatures for different users, so as to find the temperature threshold of the replaceable outer shell made of different materials that meets 80% of the users. By comparing the temperature thresholds of different materials, find the best material suitable for the outer shell and the heat source layout of the VR device.

[0106] This shell contact thermal comfort test method adopts Fig.10 Test record table and Fig.11 The subjective voting values ​​in the reference graph are scored and recorded, so as to obtain the temperature threshold that the replaceable outer shell made of different materials meets 80% of the users.

[0107] Embodiment 2:

[0108] This embodiment is the same as Embodiment 1 except for the following technical solutions:

[0109] When wearing VR equipment, in order to improve the light shielding, it needs to be close to the user's face, and a large area of ​​the face is in contact with the mask. When using VR equipment, the user will sweat due to mood changes or exercise. If the sweat cannot be removed in time, it will bring sticky discomfort. Even in a thermally comfortable environment, the human body will have uninterrupted water evaporation (insensible evaporation). Although the evaporation amount is small, it should be removed from the skin surface in time to ensure the thermal comfort of the human body. Therefore, the thermal comfort of the mask is an issue that cannot be ignored. It greatly affects the heat dissipation of the contact part between the face and the VR equipment and the respiratory function of the skin. When its temperature and humidity characteristics are not compatible with the physiological function of the human body, it will cause local discomfort in the human body, thereby accelerating the formation of human fatigue. In severe cases, it may even cause the occurrence of skin diseases. The existing selection of VR equipment mask materials mainly considers the thermal physical properties of the material itself, such as thermal conductivity, moisture permeability, and air permeability. When testing these indicators, it is often an isolated experiment, and it is difficult to link these indicators with people's subjective feelings. Therefore, after the material is made into a mask, the subjective experience of the human body wearing the mask is crucial.

[0110] A method for testing the thermal comfort of a head-mounted VR device mask is based on a head-mounted VR device thermal experience testing device and includes the following steps:

[0111] Z101. Setting the initial temperature and initial humidity of the microenvironment in the cavity of the replaceable mask for user experience;

[0112] Z201. Select the replaceable mask material to be tested, and fix the selected replaceable mask on the base; during the test, fix masks of different materials such as foam material, silicone, leather, gauze cloth, nylon material, inert breathable cotton, thermoplastic elastomer material, silicone resin, thermoplastic polyurethane elastomer rubber and other materials on the VR experience device respectively;

[0113] Z301, the main tester 8 adjusts the temperature of the cavity microenvironment to the set temperature through the controller, and adjusts the relative humidity at this set temperature; the temperature control device adjusts the temperature of the cavity microenvironment to 25℃, 30℃, 35℃, and 40℃ respectively. At each set temperature, the cavity microenvironment is set to a relative humidity of 30% as the starting point, and the relative humidity is adjusted in steps of 10%;

[0114] Z401. Conduct thermal comfort experience test using user experience, and record the thermal comfort evaluation values ​​of different users under masks of different materials and different micro-environment temperature and humidity;

[0115] Z501. Statistical analysis is performed on the thermal comfort evaluation values ​​of different users for masks made of different materials, and the temperature and humidity thresholds of masks made of different materials that meet the needs of 80% of users are found. By comparing the temperature and humidity thresholds of different materials, the best material for the mask is found.

[0116] Among them, in Z301, the set temperatures of the microenvironment in the cavity are 25℃, 30℃, 35℃, and 40℃ respectively. At each set temperature, the relative humidity of the microenvironment in the cavity is adjusted with a step length of 10% starting from 30% relative humidity. Fig.12 The mask thermal comfort test record form shown records the thermal comfort evaluation values ​​in this test.

[0117] Embodiment 3:

[0118] This embodiment is the same as Embodiment 1 except for the following technical solutions:

[0119] When VR equipment is worn, it will form a local cavity microenvironment with the user's face. The cavity microenvironment is in a comfortable state when initially worn. As the task progresses, due to the heat of the VR equipment and sweating on the face, the air in the cavity microenvironment is in a state of high temperature and high humidity, which will cause discomfort to the face. Therefore, ventilation of the microenvironment is very important, and the amount of ventilation will also affect the user's subjective thermal comfort. The existing circulating air volume settings are all set by experience values, without considering people's subjective feelings.

[0120] A method for testing the thermal comfort of the circulating ventilation volume of the face cavity of a head-mounted VR device is completed based on a head-mounted VR device thermal experience testing device, and includes the following steps:

[0121] X101. Setting the initial temperature and initial humidity of the microenvironment of the inner cavity of the replaceable mask for user experience;

[0122] X201, set the ventilation mode of the vents;

[0123] X301 and the experimenter 8 adjusted the temperature of the cavity microenvironment to the set temperature through the controller. The set temperatures were 25℃, 30℃, 35℃, 40℃, and 45℃, and the relative humidity was adjusted at each set temperature. At each set temperature, the relative humidity of the cavity microenvironment was adjusted to 40%, 50%, 60%, 70%, 80%, and 90%, respectively. In this environment, the wind speed of the vent was adjusted in units of 0.05m / s.

[0124] X401, conduct thermal comfort experience test using user experience method, and record the thermal comfort evaluation of different wind speeds under micro-environments with different humidity;

[0125] X501. Through statistical methods, the wind speed threshold that meets the needs of 80% of users in micro-environments with different temperatures and humidity is found, thereby guiding the fan control logic of the VR device vents. Under this control logic, the device can adjust the fan speed according to the wind speed thresholds at different temperatures and humidity to meet the user's thermal and humidity needs.

[0126] Among them, the ventilation mode of the vent in X201 is top-in and bottom-out, bottom-in and top-out, left-in and right-out, or right-in and left-out. Specifically, when the ventilation mode is top-in and bottom-out or bottom-in and top-out, the fans 7 located on the left and right sides are driven to work by the pressure difference between the inside and outside of the base 1; when the ventilation mode is left-in and right-out or right-in and left-out, the fans 7 located on the upper and lower sides are driven to work by the pressure difference between the inside and outside of the base 1. You can use the following method: Fig.13 The thermal comfort test record sheet shown records the thermal comfort at different wind speeds.

[0127] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head-mounted VR device thermal experience test device, characterized in that: include: A base, the base having a shell portion away from the human face and a facial cavity portion close to the human face; An outer shell heating component, wherein the outer shell heating component covers the outer side of the base outer shell; A replaceable housing, the replaceable housing being detachably mounted on the housing portion of the base and covering the housing portion heating assembly; Temperature measurement sensors, the temperature measurement sensors being evenly distributed on the outer surface of the replaceable housing; A controller, wherein the housing heating assembly and the temperature measuring sensor are both connected to the controller signal; The base is fixed to the head of the tester through the wearing piece.

2. The head-mounted VR device thermal experience testing device according to claim 1, characterized in that: It also includes a facial cavity heating component and a replaceable mask, wherein the facial cavity heating component covers the outer side of the facial cavity of the base; the replaceable mask is detachably mounted on the facial cavity of the base and is located on the outer side of the facial cavity heating component; temperature measurement sensors are evenly distributed on the surface of the facial cavity heating component, and the facial cavity heating sensors are connected to a controller.

3. The head mounted VR device thermal experience test device according to claim 2, characterized in that: It also includes a humidification component, which includes a humidification pipeline, a humidification nozzle, a humidity sensor, a water storage tank and a hydrophilic core; the humidification pipeline and the water storage tank are both arranged in the inner cavity of the base, the face cavity portion of the base is provided with an air outlet and an air return port facing the face, the air outlet and the air return port are both connected to the humidification pipeline, the humidification nozzle is located in the humidification pipeline, the humidification nozzle is connected to the controller signal, the humidification nozzle is connected to the water storage tank through the hydrophilic core to generate water mist to be discharged through the air outlet, and the humidity sensor is evenly distributed on the outer surface of the heating component of the face cavity portion; Preferably, the base is also provided with a sealable water filling port, through which water is filled into the water storage tank; Preferably, it also includes a circulating fan, which is arranged in the humidification pipeline to quickly blow out the water mist generated by the humidification nozzle through the air outlet.

4. The head mounted VR device thermal experience testing device according to claim 3, characterized in that: It also includes a variable wind speed component, which includes a fan; a vent is opened in the surface cavity of the base, and the fan is arranged in the vent to blow air into the base or discharge the air in the base.

5. The head mounted VR device thermal experience test device according to claim 4, characterized in that: It also includes a dehumidification component, which includes a dehumidification material and an electrically controlled gate. The humidification pipe section has a dehumidification port, the dehumidification material covers the dehumidification port and is located outside the humidification pipe, and the electrically controlled gate is located inside the humidification pipe and is used to open or close the dehumidification port. Preferably, it also includes a dehumidifier regeneration device, which includes an electric heating plate. The electric heating plate is arranged close to the dehumidification material and is used to heat and regenerate the dehumidification material.

6. The head mounted VR device thermal experience test device according to claim 2, characterized in that: It also includes pressure sensors, which are evenly distributed at the connection between the replaceable mask and the base, and the pressure sensors are connected to the controller signal.

7. The head mounted VR device thermal experience testing device according to claim 1, characterized in that: The outer shell heating assembly comprises an outer shell heat insulation layer and an outer shell heating layer; the outer shell heat insulation layer covers the outer side of the outer shell of the base, and the outer shell heating layer covers the outer side of the outer shell heat insulation layer; Preferably, the outer shell heating layer includes a plurality of electric heating blocks and thermal insulation strips; the plurality of electric heating blocks are evenly distributed on the outer surface of the outer shell thermal insulation layer, and there is a gap between each two adjacent electric heating blocks, and the thermal insulation strip is arranged in the gap between adjacent electric heating blocks to prevent heat exchange between adjacent electric heating blocks.

8. A method for testing the contact thermal comfort of the outer shell of a head-mounted VR device, characterized in that: The thermal experience test device for head-mounted VR equipment according to claims 1 to 7 is completed, comprising the following steps: S101, setting the ambient temperature and humidity for user experience; S201, select the replaceable shell material to be tested, and fix the selected replaceable shell on the base. S301, dividing the replaceable housing into seven areas, and labeling each area for distinction; S401, adjusting the replaceable housing of each area to a specified temperature through a controller; S501, conducting a thermal experience experiment in a user experience manner, and recording different users' thermal sensation evaluations on different areas of the replaceable housing; S601, repeating S401 and S501 until the thermal sensation evaluation of different areas of the replaceable housing by different users at different temperatures is completed; S701. Statistically analyze the thermal sensation evaluation values ​​of different areas of the replaceable outer shell at different temperatures for different users, so as to find the temperature threshold of the replaceable outer shell made of different materials that meets 80% of the users. By comparing the temperature thresholds of different materials, find the best material suitable for the outer shell and the heat source layout of the VR device.

9. A method for testing thermal comfort of a head-mounted VR device mask, characterized in that: The thermal experience test device for head-mounted VR equipment according to claims 3 to 7 is completed, comprising the following steps: Z101. Setting the initial temperature and initial humidity of the microenvironment of the inner cavity of the replaceable mask for user experience; Z201. Select the replaceable mask material to be tested and fix the selected replaceable mask on the base; Z301, adjust the cavity microenvironment temperature to a set temperature through a controller, and adjust the relative humidity at this set temperature; Z401. Conduct thermal comfort experience test using user experience, and record the thermal comfort evaluation values ​​of different users under masks of different materials and different micro-environment temperature and humidity; Z501. Statistical analysis is performed on the thermal comfort evaluation values ​​of different users for masks made of different materials, and the temperature and humidity thresholds of masks made of different materials that meet the needs of 80% of users are found. By comparing the temperature and humidity thresholds of different materials, the best material for the mask is found.

10. A method for testing the thermal comfort of the circulating ventilation volume of the face cavity of a head-mounted VR device, based on the head-mounted VR device thermal experience testing device according to claims 4 to 7, comprising the following steps: X101. Set the initial temperature and initial humidity of the microenvironment of the inner cavity of the replaceable mask for user experience; X201, set the ventilation mode of the vents; X301. Adjust the cavity microenvironment temperature to the set temperature through the controller, adjust the relative humidity to 40%, 50%, 60%, 70%, 80%, 90% at the set temperature, and adjust the wind speed of the vents at different relative humidities; X401, conduct thermal comfort experience test using user experience method, and record the thermal comfort evaluation of different wind speeds under micro-environments with different humidity; X501. Through statistical methods, find the wind speed threshold that can meet the needs of 80% of users in micro-environments with different temperatures and humidity.

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