Museum visiting and guiding method and system based on mixed reality technology and medium

Abstract

The invention discloses a museum visiting and guiding method and system based on a mixed reality technology and a medium. Relates to the technical field of intelligent navigation. According to the scheme, the space in the museum is divided into the safe space and the non-safe space of the MR wearable equipment, the light of the safe space is normal, the MR wearable equipment can realize correct spatial positioning, and the light of the non-safe space is dark and miscellaneous, so that the problem of inaccurate spatial positioning of the MR wearable equipment possibly occurs; therefore, the MR wearable device of the scheme is provided with two working modes for coping with the safe space and the non-safe space, when the MR wearable device is located in the safe space, the mixed reality feedback is performed in the normal mode, and when the MR wearable device is located in the non-safe space currently, the mixed reality feedback is performed in the real-time mode. By superposing the surrounding environment information in the instant mode, the surrounding environment information and the mixed reality feedback content are combined in time, so that accurate mixed reality feedback and space positioning are provided.

Description

Technical Field

[0001] The present invention relates to the field of intelligent tour guide technology, and in particular to a museum tour guide method, system and medium based on mixed reality technology. Background Art

[0002] Background technology: With the continuous development of digital technology, mixed reality (MR) technology, as its emerging form, has been widely used in various fields. As an important form of cultural inheritance and display, museum display is also facing the challenges of digitization and modernization. Mixed reality technology creates the ability of immersive experience between the real and virtual worlds, bringing new opportunities for museum display design. Mixed reality technology refers to the combination of elements of the real world and the virtual world through technical mixing, thereby creating a new reality experience; mixed reality technology can provide audiences with a more immersive and interactive museum display design through the combination of enhanced computer reality and virtual reality technology, and present exhibits and cultural relics in the museum to the audience through various means and technologies, so as to achieve multiple purposes such as displaying culture, inheriting history and educating audiences. In museum display design, mixed reality technology can bring more experience, viewing and interactive effects to exhibits and cultural relics, and improve the audience's participation and feeling.

[0003] However, when mixed reality technology is applied in museum display design, the dimly lit museum environment will affect the spatial positioning of mixed reality technology and cause problems with visual recognition accuracy, which may lead to problems such as tilted display images and asynchrony between audio and video. Summary of the invention

[0004] The technical problem to be solved by the present invention is: when mixed reality technology is applied in museum display design, the dimly lit museum environment will affect the spatial positioning of the mixed reality technology and cause problems with visual recognition accuracy, which may lead to problems such as tilted display screen and asynchrony of sound and picture. The purpose of the present invention is to provide a museum tour guide method, system and medium based on mixed reality technology, divide the space in the museum into a safe space and an unsafe space for MR wearable devices, and when the MR wearable device is located in the safe space, mixed reality feedback is performed in normal mode. When the MR wearable device is currently located in the unsafe space, mixed reality feedback is performed in immediate mode. By superimposing the surrounding environment information in the immediate mode, the surrounding environment information is timely combined with the mixed reality feedback content to provide accurate mixed reality feedback and spatial positioning.

[0005] The present invention is achieved through the following technical solutions:

[0006] This solution provides a museum tour guide method based on mixed reality technology, which is implemented based on MR wearable devices and includes:

[0007] Construct a light energy transfer model for the museum, and obtain the light energy distribution data of the museum based on the light energy transfer model;

[0008] Based on the light energy distribution data, a safe space for MR wearable devices is divided in the museum;

[0009] The current position of the MR wearable device is obtained. If the MR wearable device is currently located in a safe space, the MR wearable device enables a normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables an immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

[0010] Working principle of this solution: When mixed reality technology is applied in museum display design, the dimly lit museum environment will affect the spatial positioning of the mixed reality technology and cause problems with visual recognition accuracy, which may lead to problems such as tilted display screen and asynchrony of audio and video. This solution provides a museum tour guide method based on mixed reality technology, which divides the space in the museum into a safe space and an unsafe space for MR wearable devices. The light in the safe space is normal, and the MR wearable device can achieve correct spatial positioning, while the light in the unsafe space is dark and the MR wearable device may have inaccurate spatial positioning. Therefore, the MR wearable device of this solution sets two working modes for the safe space and the unsafe space respectively. When the MR wearable device is within the safe space, mixed reality feedback is performed in normal mode. When the MR wearable device is currently in the unsafe space, mixed reality feedback is performed in immediate mode. By superimposing the surrounding environment information in the immediate mode, the surrounding environment information is timely combined with the mixed reality feedback content to provide accurate mixed reality feedback and spatial positioning.

[0011] A further optimization scheme is to construct a light energy transfer model of the museum and obtain the light energy distribution data of the museum according to the light energy transfer model; including the method:

[0012] Acquire light source information and reflection information in the museum, wherein the light source information includes the light source, the spatial position of each light source, the rotation direction of each light source, and the luminous intensity distribution of each light source; the reflection information includes the reflection source, the surface boundary and reflectivity of each reflection source;

[0013] Construct the indoor light energy distribution model and light energy reflection model of the museum, and combine the indoor light energy distribution model and light energy reflection model to obtain the light energy transfer model;

[0014] The light energy distribution data of the museum is calculated based on the light energy transfer model.

[0015] A further optimization scheme is to construct the indoor light energy distribution model and light energy reflection model of the museum, and combine the indoor light energy distribution model and light energy reflection model to obtain the light energy transfer model; including the method:

[0016] Based on the light source information, an indoor light energy distribution model is constructed: the museum space is divided into multiple micro-facets, and the irradiation light source and reflection light source of each micro-facet are determined; the indoor light energy distribution of micro-facet i is calculated:

[0017]

[0018] Where Eai is the indoor light energy of micro-facet i; j is the jth irradiation light source of micro-facet i; n is the total number of irradiation light sources of micro-facet i; e aij represents the light energy distribution of the jth irradiation light source on micro-facet i; B ij represents the luminous intensity of the irradiation light source j in the direction of microfacet i; cosθ represents the cosine angle between the light of the irradiation light source j and the normal vector of microfacet i; d represents the distance from the irradiation light source j to microfacet i;

[0019] Constructing a light energy reflection model based on the reflection information;

[0020] The indoor light energy distribution model and the light energy reflection model are superimposed to obtain the light energy transfer model.

[0021] A further optimization scheme is to divide the museum space into multiple micro-facets, and determine the illumination light source and reflection light source of each micro-facet; including the following method:

[0022] Acquire a tour space in a museum space, and divide the tour space into a plurality of micro-facets;

[0023] Determine whether each micro-facet is within the illumination range of each light source. If micro-facet i is within the illumination range of the current light source, the current light source is determined as the illumination light source of micro-facet i.

[0024] It is determined whether each micro-facet is within the reflection range of the display cabinet glass. If the micro-facet i is within the reflection range of the current display cabinet glass, the current display cabinet glass is used as the reflection light source of the micro-facet i.

[0025] A further optimization scheme is to construct a light energy reflection model based on the reflection information; including the method:

[0026] The display cabinet surface of the glass display case in the museum is used as the reflected light source;

[0027] The reflection coefficient of each reflected light source is calculated according to the reflectivity of each reflected light source:

[0028] The reflection coefficient of the reflected light source for any irradiating light source is:

[0029]

[0030] Where R represents the reflection coefficient; r s represents the vertical component reflection coefficient; r p represents the parallel component reflection coefficient; θ1 represents the incident angle; θ2 represents the refraction angle; n1 represents the refractive index of the cabinet glass; n2 represents the refractive index of air;

[0031] A light energy reflection model is constructed based on the reflection coefficient and transmission coefficient: the light energy reflection for microfacet i is:

[0032]

[0033] Where x represents the xth reflected light source of microfacet i; m represents the total number of reflected light sources of microfacet i; e bij represents the light energy distribution of the jth reflected light source on micro-facet i; R j I represents the reflection coefficient of the reflected light source j; j represents the incident light intensity of the reflected light source j; θ represents the angle between the incident light and the normal of the surface of the cabinet glass; θ t It represents the angle between the transmitted light and the normal of the cabinet glass surface.

[0034] In this step, the light energy distribution e of the reflected light source j on micro-facet i bij It includes all the illumination light sources. For example, the illumination light source a1 and the illumination light source a2 both have reflected light on the reflection light source, and both are reflected to the micro-facet i. Then two sets of reflection coefficients and two sets of reflected light can be calculated by the illumination light source a1 and the illumination light source a2. The corresponding light energy distribution e of the reflection light source j on the micro-facet i bij It includes the reflected light from the irradiation light source a1 and the reflected light from the irradiation light source a2.

[0035] A further optimization scheme is to divide a safe space for MR wearable devices in a museum based on the light energy distribution data; including the following method:

[0036] Obtain light energy distribution data of each micro-facet of the tour space;

[0037] A light energy threshold Ee is set to filter out micro-facets whose light energy is ≥ the light energy threshold Ee, and a safe space is formed by all the filtered micro-facets.

[0038] A further optimization scheme is that the MR wearable device performs mixed reality feedback in an instant mode, including a method:

[0039] S31, the MR wearable device instantly senses the current environmental data and extracts feature points from the environmental data;

[0040] S32, matching the feature point with feature points in a map library to determine current location data in the map;

[0041] S33, the MR wearable device corrects the spatial positioning data according to the current position data and performs mixed reality feedback.

[0042] A further optimization scheme is that the feature points include line segment features, frame features and cultural relic contour features.

[0043] This solution also provides a museum tour guide system based on mixed reality technology, which is used to implement the above-mentioned museum tour guide method based on mixed reality technology; the system includes:

[0044] A construction module is used to construct a light energy transfer model of the museum and obtain light energy distribution data of the museum according to the light energy transfer model;

[0045] An interval division module, used to divide a safe space for MR wearable devices in the museum based on the light energy distribution data;

[0046] The feedback module is used to obtain the current position of the MR wearable device. If the MR wearable device is currently located within the safe space, the MR wearable device enables the normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables the immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

[0047] The present solution also provides a computer-readable medium on which a computer program is stored. The computer program is executed by a processor to implement the museum tour guidance method based on mixed reality technology as described above.

[0048] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0049] The museum tour guide method, system and medium based on mixed reality technology provided by the present invention divide the space in the museum into a safe space and an unsafe space for MR wearable devices. The light in the safe space is normal, and the MR wearable device can achieve correct spatial positioning, while the light in the unsafe space is dim and the MR wearable device may have the problem of inaccurate spatial positioning; therefore, the MR wearable device of this solution sets two working modes for the safe space and the unsafe space respectively. When the MR wearable device is located in the safe space, mixed reality feedback is performed in normal mode; when the MR wearable device is currently located in the unsafe space, mixed reality feedback is performed in immediate mode. By superimposing the surrounding environment information in the immediate mode, the surrounding environment information is timely combined with the mixed reality feedback content to provide accurate mixed reality feedback and spatial positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0051] Figure 1 A flowchart of a museum tour guide method based on mixed reality technology;

[0052] Figure 2 This is a structural diagram of the museum tour guide system based on mixed reality technology. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0054] When mixed reality technology is applied in museum display design, the dimly lit museum environment will affect the spatial positioning of the mixed reality technology and cause problems with visual recognition accuracy, which may lead to problems such as tilted display images and asynchrony between audio and video. In view of this, this solution provides the following embodiments to solve the above technical problems:

[0055] Example 1

[0056] This embodiment provides a museum tour guide method based on mixed reality technology, which is implemented based on MR wearable devices, such as Figure 1 As shown, the method includes:

[0057] Step 1: construct a light energy transfer model of the museum, and obtain the light energy distribution data of the museum according to the light energy transfer model; this step specifically includes the following methods:

[0058] S11, obtaining light source information and reflection information in the museum, wherein the light source information includes the light source, the spatial position of each light source, the rotation direction of each light source, and the luminous intensity distribution of each light source; the reflection information includes the reflection source, the surface boundary and reflectivity of each reflection source;

[0059] S12, constructing an indoor light energy distribution model and a light energy reflection model of the museum, and combining the indoor light energy distribution model and the light energy reflection model to obtain a light energy transfer model; this step specifically includes the following method:

[0060] S121, constructing an indoor light energy distribution model based on the light source information: dividing the museum space into multiple micro-facets, determining the irradiation light source and the reflection light source of each micro-facet; specifically obtaining the sightseeing space in the museum space, and dividing the sightseeing space into multiple micro-facets; in this step, the sightseeing space refers to the space that tourists can reach after wearing wearable devices. It is not necessary to divide the entire museum interior into micro-facets to calculate the light energy distribution. It is mainly necessary to divide the space at the spatial position that can be reached by the wearable device to reduce a lot of calculation work.

[0061] Methods for determining the illumination light source and the reflected light source of each micro-facet include:

[0062] G1, obtaining a tour space in the museum space, and dividing the tour space into a plurality of micro-facets;

[0063] G2, turn on each light source in turn, determine whether each micro-facet is within the illumination range of each light source, and if micro-facet i is within the illumination range of the current light source, determine the current light source as the illumination light source of micro-facet i;

[0064] G3, turn on each light source in turn to determine whether each micro-facet is within the reflection range of the display cabinet glass. If micro-facet i is within the reflection range of the current display cabinet glass, the current display cabinet glass is used as the reflection light source of micro-facet i.

[0065] Calculate the indoor light energy distribution of micro-facet i:

[0066]

[0067] Where Eai is the indoor light energy of micro-facet i; j is the jth irradiation light source of micro-facet i; n is the total number of irradiation light sources of micro-facet i; e aij represents the light energy distribution of the jth irradiation light source on micro-facet i; B ij represents the luminous intensity of the irradiation light source j in the direction of microfacet i; cosθ represents the cosine angle between the light of the irradiation light source j and the normal vector of microfacet i; d represents the distance from the irradiation light source j to microfacet i;

[0068] S122, constructing a light energy reflection model based on the reflection information; this step specifically includes the following method:

[0069] S1221, using the display cabinet surface of the glass display cabinet in the museum as the reflected light source;

[0070] S1222, calculating the reflection coefficient of each reflected light source according to the reflectivity of each reflected light source:

[0071] The reflection coefficient of the reflected light source for any irradiating light source is:

[0072]

[0073] Where R represents the reflection coefficient; r s represents the vertical component reflection coefficient; r p represents the parallel component reflection coefficient; θ1 represents the incident angle; θ2 represents the refraction angle; n1 represents the refractive index of the cabinet glass; n2 represents the refractive index of air;

[0074] S1223, construct a light energy reflection model based on the reflection coefficient and the transmission coefficient: the light energy reflection for micro-facet i is:

[0075]

[0076] Where x represents the xth reflected light source of microfacet i; m represents the total number of reflected light sources of microfacet i; e bij represents the light energy distribution of the jth reflected light source on micro-facet i; R j I represents the reflection coefficient of the reflected light source j; j represents the incident light intensity of the reflected light source j; θ represents the angle between the incident light and the normal of the surface of the cabinet glass; θ t It represents the angle between the transmitted light and the normal of the cabinet glass surface.

[0077] In this step, the light energy distribution e of the reflected light source j on micro-facet i bij It includes all the illumination light sources. For example, the illumination light source a1 and the illumination light source a2 both have reflected light on the reflection light source, and both are reflected to the micro-facet i. Then two sets of reflection coefficients and two sets of reflected light can be calculated by the illumination light source a1 and the illumination light source a2. The corresponding light energy distribution e of the reflection light source j on the micro-facet i bij It includes the reflected light from the irradiation light source a1 and the reflected light from the irradiation light source a2.

[0078] S123, superimposing the indoor light energy distribution model and the light energy reflection model to obtain a light energy transfer model.

[0079] S13, calculating the light energy distribution data of the museum according to the light energy transfer model.

[0080] Step 2: Based on the light energy distribution data, a safe space for MR wearable devices is divided in the museum; this step specifically includes the following methods:

[0081] Obtain light energy distribution data of each micro-facet of the tour space;

[0082] Set the light energy threshold Ee, filter out the micro-facets whose light energy ≥ light energy threshold Ee, and all the filtered micro-facets form a safe space. Other spaces in the museum are non-safe spaces.

[0083] Step three, obtain the current position of the MR wearable device. If the MR wearable device is currently located within the safe space, the MR wearable device enables the normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables the immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

[0084] The MR wearable device performs mixed reality feedback in an instant mode, including a method:

[0085] S31, the MR wearable device instantly senses the current environmental data and extracts feature points from the environmental data; the feature points include line segment features, frame features and cultural relic contour features.

[0086] S32, matching the feature point with feature points in a map library to determine current location data in the map;

[0087] S33, the MR wearable device corrects the spatial positioning data according to the current position data and performs mixed reality feedback.

[0088] The museum tour guidance method based on mixed reality technology provided in this embodiment divides the space in the museum into a safe space and an unsafe space for MR wearable devices. When the MR wearable device is located in the safe space, mixed reality feedback is performed in normal mode. When the MR wearable device is currently located in the unsafe space, mixed reality feedback is performed in immediate mode. By superimposing the surrounding environment information in the immediate mode, the surrounding environment information is timely combined with the mixed reality feedback content to provide accurate mixed reality feedback and spatial positioning.

[0089] Example 2

[0090] This embodiment provides a museum tour guide system based on mixed reality technology, which is used to implement the museum tour guide method based on mixed reality technology described in Example 1; Figure 2 As shown, the system comprises:

[0091] A construction module is used to construct a light energy transfer model of the museum and obtain light energy distribution data of the museum according to the light energy transfer model;

[0092] An interval division module, used to divide a safe space for MR wearable devices in the museum based on the light energy distribution data;

[0093] The feedback module is used to obtain the current position of the MR wearable device. If the MR wearable device is currently located within the safe space, the MR wearable device enables the normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables the immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

[0094] Example 3

[0095] This embodiment provides a computer-readable medium on which a computer program is stored, wherein the computer program is executed by a processor to implement the museum tour guide method based on mixed reality technology as described in Embodiment 2; specifically, the following steps are performed:

[0096] Step 1: construct a light energy transfer model of the museum, and obtain light energy distribution data of the museum according to the light energy transfer model;

[0097] Step 2: Based on the light energy distribution data, a safe space for MR wearable devices is divided in the museum;

[0098] Step three, obtain the current position of the MR wearable device. If the MR wearable device is currently located within the safe space, the MR wearable device enables the normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables the immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

[0099] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A museum tour guide method based on mixed reality technology, characterized in that: The method is implemented based on an MR wearable device, and the method includes: Construct a light energy transfer model for the museum, and obtain the light energy distribution data of the museum based on the light energy transfer model; Based on the light energy distribution data, a safe space for MR wearable devices is divided in the museum; The current position of the MR wearable device is obtained. If the MR wearable device is currently located in a safe space, the MR wearable device enables a normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables an immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

2. The museum tour guide method based on mixed reality technology according to claim 1, characterized in that: The light energy transfer model of the museum is constructed, and the light energy distribution data of the museum is obtained according to the light energy transfer model; Included methods: Acquire light source information and reflection information in the museum, wherein the light source information includes the light source, the spatial position of each light source, the rotation direction of each light source, and the luminous intensity distribution of each light source; the reflection information includes the reflection source, the surface boundary and reflectivity of each reflection source; Construct the indoor light energy distribution model and light energy reflection model of the museum, and combine the indoor light energy distribution model and light energy reflection model to obtain the light energy transfer model; The light energy distribution data of the museum is calculated based on the light energy transfer model.

3. The museum tour guide method based on mixed reality technology according to claim 2, characterized in that: The method of constructing the indoor light energy distribution model and light energy reflection model of the museum and combining the indoor light energy distribution model and light energy reflection model to obtain the light energy transfer model includes: Constructing an indoor light energy distribution model based on the light source information: dividing the museum space into multiple micro-facets, and determining the irradiation light source and the reflection light source of each micro-facet; Calculate the indoor light energy distribution of micro-facet i: Where Eai is the indoor light energy of micro-facet i; j is the jth irradiation light source of micro-facet i; n is the total number of irradiation light sources of micro-facet i; e aij represents the light energy distribution of the jth irradiation light source on micro-facet i; B ij represents the luminous intensity of the irradiation light source j in the direction of microfacet i; cosθ represents the cosine angle between the light of the irradiation light source j and the normal vector of microfacet i; d represents the distance from the irradiation light source j to microfacet i; Constructing a light energy reflection model based on the reflection information; The indoor light energy distribution model and the light energy reflection model are superimposed to obtain the light energy transfer model.

4. The museum tour guide method based on mixed reality technology according to claim 3, characterized in that: The museum space is divided into a plurality of micro-facets, and the illumination light source and the reflected light source of each micro-facet are determined; including the method: Acquire a tour space in a museum space, and divide the tour space into a plurality of micro-facets; Determine whether each micro-facet is within the illumination range of each light source. If micro-facet i is within the illumination range of the current light source, the current light source is determined as the illumination light source of micro-facet i. It is determined whether each micro-facet is within the reflection range of the display cabinet glass. If the micro-facet i is within the reflection range of the current display cabinet glass, the current display cabinet glass is used as the reflection light source of the micro-facet i.

5. The museum tour guide method based on mixed reality technology according to claim 3, characterized in that: Constructing a light energy reflection model based on the reflection information; including a method: The display cabinet surface of the glass display case in the museum is used as the reflected light source; The reflection coefficient of each reflected light source is calculated according to the reflectivity of each reflected light source: The reflection coefficient of the reflected light source for any irradiating light source is: Where R represents the reflection coefficient; r s represents the vertical component reflection coefficient; r p represents the parallel component reflection coefficient; θ1 represents the incident angle; θ2 represents the refraction angle; n1 represents the refractive index of the cabinet glass; n2 represents the refractive index of air; A light energy reflection model is constructed based on the reflection coefficient and transmission coefficient: the light energy reflection for microfacet i is: Where x represents the xth reflected light source of microfacet i; m represents the total number of reflected light sources of microfacet i; e bij represents the light energy distribution of the jth reflected light source on micro-facet i; R j represents the reflection coefficient of the reflected light source j; I j represents the incident light intensity of the reflected light source j; θ represents the angle between the incident light and the normal of the surface of the cabinet glass; θ t It represents the angle between the transmitted light and the normal of the cabinet glass surface.

6. The museum tour guide method based on mixed reality technology according to claim 4, characterized in that: Based on the light energy distribution data, a safe space for MR wearable devices is divided in the museum; Included methods: Obtain light energy distribution data of each micro-facet of the tour space; A light energy threshold Ee is set to filter out micro-facets whose light energy is ≥ the light energy threshold Ee, and a safe space is formed by all the filtered micro-facets.

7. The museum tour guide method based on mixed reality technology according to claim 1, characterized in that: The MR wearable device performs mixed reality feedback in an instant mode, including a method: S31, the MR wearable device instantly senses the current environmental data and extracts feature points from the environmental data; S32, matching the feature point with feature points in a map library to determine current location data in the map; S33, the MR wearable device corrects the spatial positioning data according to the current position data and performs mixed reality feedback.

8. The museum tour guide method based on mixed reality technology according to claim 7, characterized in that: The feature points include line segment features, frame features and cultural relic outline features.

9. The museum tour guide system based on mixed reality technology is characterized by: Used to implement the museum tour guide method based on mixed reality technology as described in any one of claims 1 to 8; the system comprises: A construction module is used to construct a light energy transfer model of the museum and obtain light energy distribution data of the museum according to the light energy transfer model; An interval division module, used to divide a safe space for MR wearable devices in the museum based on the light energy distribution data; The feedback module is used to obtain the current position of the MR wearable device. If the MR wearable device is currently located within the safe space, the MR wearable device enables the normal mode for mixed reality feedback. If the MR wearable device is currently located outside the safe space, the MR wearable device enables the immediate mode for mixed reality feedback; the immediate mode superimposes the surrounding environment information.

10. A computer readable medium having a computer program stored thereon, characterized in that: The computer program is executed by a processor to implement the museum tour guidance method based on mixed reality technology as described in any one of claims 1 to 8.

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