Intelligent glasses, shielding detection device and electronic equipment

Abstract

The embodiment of the invention discloses intelligent glasses, a shielding detection device and electronic equipment, and is characterized in that a sensor assembly is arranged in a mounting cavity of a shell and is aligned with a light hole of the shell, and the sensor assembly comprises an ambient light sensor, a proximity sensor and an infrared light source; at least two visible light sources are arranged in different radial directions of an ambient light sensor, a control circuit controls a visible light source group to emit indication light, controls an infrared light source to emit infrared light, and determines the shielding state of a window according to at least one of a first detection signal of the ambient light sensor and a second detection signal of a proximity sensor. The indication light emergent area and the shielding detection light incident area share the same light hole, the condition that shielding detection fails when only the indication light emergent area is shielded is avoided, and the field angle of the ambient light sensor is relatively symmetrical in all directions through the position arrangement of the visible light source, so that the shielding detection accuracy is improved. And the shielding detection sensitivity and accuracy can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearable devices, and more particularly, to an intelligent glasses, an occlusion detection device and an electronic device. BACKGROUND

[0002] With the development of science and technology, more and more wearable smart devices have entered people's daily life. For example, smart glasses are a common wearable device, which can have image display, audio playback, signal acquisition and other functions by integrating electronic devices in glasses. Some wearable smart devices have image shooting function, but when the user uses the wearable smart device to take pictures or record videos in public places or private spaces, the user may record the images or videos of others without their knowledge, thereby infringing the privacy rights of others. Some current wearable devices (such as smart glasses) are provided with a shooting state prompt light for shooting prompt, and some schemes are adopted for occlusion detection of the prompt light to avoid the user from occluding the prompt light. However, the existing occlusion detection scheme has large detection error, or is easily evaded by the user in a specific way. For example, when the occlusion sensing area and the indicator light emission area are separated, the user may bypass the occlusion detection by only occluding the indicator light emission area while avoiding the occlusion sensing area. SUMMARY

[0003] In view of this, the embodiments of the present application provide an intelligent glasses, an occlusion detection device and an electronic device, which are beneficial to improve at least part of the above problems existing in the prior art.

[0004] In a first aspect, an embodiment of the present application provides an intelligent glasses, comprising a glasses main body, a control circuit and an occlusion detection device; a surface of the glasses main body has a viewing window; the occlusion detection device is arranged on the glasses main body, and the occlusion detection device comprises a shell, a sensor assembly and a visible light source group: the shell has a mounting cavity, the shell has a light transmission hole communicating between the outside and the mounting cavity, and the light transmission hole is aligned with the viewing window; the sensor assembly is electrically connected with the control circuit, the sensor assembly is arranged in the mounting cavity and aligned with the light transmission hole, the sensor assembly comprises an ambient light sensor, a proximity sensor and an infrared light source, the ambient light sensor is configured to detect ambient light to generate a first detection signal, and the proximity sensor is configured to detect infrared light to generate a second detection signal; the visible light source group comprises at least two visible light sources, is arranged in the mounting cavity and is electrically connected with the control circuit, the visible light sources are arranged outside the sensor assembly and are located in different radial directions of the ambient light sensor; wherein the control circuit is configured to: in an occlusion detection mode, control the visible light source group to emit indicating light, and control the infrared light source to emit infrared light; determine the occlusion state of the viewing window according to at least one of the first detection signal and the second detection signal; and control the working state of the intelligent glasses according to the occlusion state of the viewing window.

[0005] Further, the visible light sources of the visible light source group are arranged in a central symmetric or mirror symmetric manner outside the ambient light sensor.

[0006] Further, the occlusion detection device further comprises a light homogenizing device arranged on a side opposite to the light transmission hole of the visible light source group and covering the visible light source group.

[0007] Further, the sensor assembly and the visible light source group are arranged on the same printed circuit board.

[0008] Further, in the occlusion detection mode, the control of the visible light source group to emit indicating light comprises: controlling the visible light source group to alternately emit light and turn off according to a predetermined period; the light intensity value corresponding to the first detection signal when the visible light source group emits light is an open light intensity value, and the light intensity value corresponding to the first detection signal when the visible light source group turns off is a closed light intensity value; the determination of the occlusion state of the viewing window according to at least one of the first detection signal and the second detection signal comprises: determining the occlusion state of the viewing window according to at least one of the first light intensity difference and the second detection signal, the first light intensity difference being a difference value between the open light intensity value and the closed light intensity value.

[0009] Further, the determining the shielding state of the view window according to at least one of the first light intensity difference and the second detection signal comprises: determining the shielding state of the view window as shielded when the first light intensity difference is greater than a first threshold; and determining the shielding state of the view window as shielded when the light intensity value corresponding to the second detection signal is greater than a second threshold.

[0010] Further, the overlapping degree of the wave band of the light emission of the visible light source group and the detection range of the proximity sensor is less than a first overlapping degree, and the overlapping degree of the wave band of the light emission of the infrared light source and the detection range of the ambient light sensor is less than a second overlapping degree; the determining the shielding state of the view window according to at least one of the first detection signal and the second detection signal comprises: determining the shielding state of the view window as shielded when the light intensity value corresponding to the second detection signal is greater than a second threshold; and determining the shielding state of the view window as shielded when the first detection signal is greater than a third threshold or less than a fourth threshold, the fourth threshold being less than the third threshold.

[0011] Further, the smart glasses further comprise a shooting assembly arranged in the glasses body and electrically connected with the control circuit; wherein the control circuit is configured to enter the shielding detection mode when the shooting assembly is started; and the controlling the working state of the smart glasses according to the shielding state of the view window comprises: controlling the shooting assembly to stop shooting when the shielding state of the view window is the shielded state.

[0012] Further, the shielding detection device further comprises a light guide member arranged in the mounting cavity and located on the light path between the light transmission hole and the sensor assembly; the shielding detection device is arranged close to the shooting assembly, the field of view angle of the indication light emitted from the view window is greater than the field of view angle of the shooting assembly, and the field of view angle of the ambient light sensor is greater than the field of view angle of the shooting assembly.

[0013] In a second aspect, the embodiments of the present application further provide a shielding detection device, comprising a housing, a sensor assembly and a visible light source group; the housing has a mounting cavity, and the housing has a light transmission hole communicating between the outside and the mounting cavity; the sensor assembly is electrically connected with the control circuit, and the sensor assembly is arranged in the mounting cavity and aligned with the light transmission hole, the sensor assembly comprises an ambient light sensor, a proximity sensor and an infrared light source, the ambient light sensor is configured to detect ambient light to generate a first detection signal, and the proximity sensor is configured to detect infrared light to generate a second detection signal; the visible light source group comprises at least two visible light sources, which are arranged in the mounting cavity and electrically connected with the control circuit, and the visible light sources are arranged outside the sensor assembly and located in different radial directions of the ambient light sensor.

[0014] Further, the visible light sources of the visible light source group are arranged in a central symmetric or mirror symmetric manner outside the ambient light sensor.

[0015] Further, the occlusion detection device further comprises a homogenizing device arranged on the side opposite to the light transmission hole of the visible light source group and covering the visible light source group.

[0016] Further, the sensor assembly and the visible light source group are arranged on the same printed circuit board.

[0017] In a third aspect, the embodiments of the present application further provide an electronic device, comprising a device main body, a control circuit and the occlusion detection device as described in the second aspect; the device main body has a viewing window on the surface; the occlusion detection device is arranged on the device main body, and the light transmission hole is arranged on the viewing window or arranged opposite to the viewing window; the control circuit is electrically connected with the occlusion detection device, and the control circuit is configured to: in the occlusion detection mode, control the visible light source group to emit indicating light and control the infrared light source to emit infrared light; determine the occlusion state of the viewing window according to at least one of the first detection signal and the second detection signal; and control the working state of the electronic device according to the occlusion state of the viewing window.

[0018] The embodiments of the present application provide an intelligent glasses, an occlusion detection device and an electronic device, by arranging the sensor assembly in the mounting cavity of the shell and aligning with the light transmission hole of the shell, the sensor assembly comprises an ambient light sensor, a proximity sensor and an infrared light source, at least two visible light sources are arranged in different radial directions of the ambient light sensor, a control circuit controls the visible light source group to emit indicating light and controls the infrared light source to emit infrared light, determines the occlusion state of the viewing window according to at least one of the first detection signal of the ambient light sensor and the second detection signal of the proximity sensor, the exit region of the indicating light and the light entrance region of the occlusion detection share the same light transmission hole, which avoids the situation that the occlusion detection fails when only the indicating light exit region is occluded, and through the position setting of the visible light source, the field of view angle of the ambient light sensor is relatively symmetrical in each direction, which is beneficial to improve the sensitivity and accuracy of the occlusion detection. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application taken with reference to the accompanying drawings, in which:

[0020] Figure 1 is a structural schematic block diagram of an electronic device of an embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of an intelligent glasses of an embodiment of the present application;

[0022] Figure 3Fig. 1 is a structural schematic diagram of smart glasses according to an embodiment of the present application;

[0023] Figure 4 Fig. 2 is a structural schematic diagram of an occlusion detection device according to an embodiment of the present application;

[0024] Figure 5 Fig. 3 is a schematic diagram of the occlusion detection of the occlusion detection device according to an embodiment of the present application;

[0025] Figure 6 Fig. 4 is a schematic diagram of the relative positions of a sensor assembly, a visible light source group, and a light transmission hole of the occlusion detection device according to an embodiment of the present application;

[0026] Figure 7 Fig. 5 is a schematic diagram of the relative positions of a sensor assembly, a visible light source group, and a light transmission hole of the occlusion detection device according to another embodiment of the present application;

[0027] Figure 8 Fig. 6 is a schematic diagram of the relative positions of a sensor assembly, a visible light source group, and a light transmission hole of the occlusion detection device according to another embodiment of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] S1 - visible light; S2 - infrared light; 1 - smart glasses; 2 - electronic device; 3 - obstacle; 10 - glasses body; 11 - frame; 12 - temple; 13 - window; 20 - shooting assembly; 30 - occlusion detection device; 31 - shell; 311 - light transmission hole; 32 - sensor assembly; 321 - ambient light sensor; 322 - proximity sensor; 323 - infrared light source; 33 - visible light source group; 331 - visible light source; 34 - light homogenizing device; 35 - printed circuit board; 36 - light guide; 40 - control circuit; 50 - display assembly; 60 - device body. DETAILED DESCRIPTION

[0030] The present application is described in detail below based on embodiments, but the present application is not limited to only these embodiments. In the following detailed description of the present application, some specific details are described in detail. The present application can also be fully understood without the description of these details by those skilled in the art. In order to avoid confusion of the essence of the present application, well-known methods, processes, procedures, elements, and circuits are not described in detail.

[0031] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0032] Unless the context clearly requires otherwise, throughout the application, the general term“comprise,”“comprises” or“comprising” is to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of“including, but not limited to.”

[0033] In the description of the present application, it should be understood that the terms“first,”“second,” and the like are used to describe various elements, but are not used to denote relative importance or significance. In addition, in the description of the present application, the meaning of“a plurality of” is two or more, unless otherwise specified.

[0034] The solutions described in the specification and embodiments, if involving processing of personal information, will be processed on the premise of having a legal basis (for example, obtaining the consent of the subject of personal information, or being necessary for the performance of a contract, etc.), and will only be processed within the prescribed or agreed scope. Users who refuse to process personal information other than the necessary information required for basic functions will not affect the user's use of basic functions.

[0035] Referring to Figures 1-8 , one aspect of the embodiments of the present application relates to a shielding detection device 30, which can be applied to electronic equipment 2 to realize shielding detection of a specific area, for example, can be applied to shielding detection of an area where a sensor, a display area, an indicator light, a microphone, etc. are located. Figure 5 is a schematic view of the shielding detection device 30 installed in the electronic equipment 2, referring to Figure 5 , the shielding detection device 30 can be arranged on the surface of the electronic equipment 2, for example, the electronic equipment 2 includes a device body 60 and a control circuit 40, the surface of the device body 60 has a light-transmissive window 13, the shielding detection device 30 can collect optical signals through the window 13 and generate corresponding light detection signals. The control circuit 40 can include a processor and a circuit connected between the processor and the shielding detection device 30 and other elements in the electronic equipment 2. Alternatively, a flexible printed circuit board 35 (FPC) can be used to realize electrical connection between the shielding detection device 30 and the processor, and between other elements in the electronic equipment 2 and the processor. As Figure 1 indicated, the control circuit 40 is electrically connected with the shielding detection device 30 and receives signals of the shielding detection device 30 to realize determination of the shielding state of the window 13, and can further realize corresponding control of the electronic equipment 2 according to the shielding state of the window 13. The shielding state of the window 13 can include an occluded state and an unoccluded state.

[0036] In some application scenarios, the electronic device 2 needs to use the indicator light to indicate the specific working state of the electronic device 2, so as to facilitate the user or other personnel to observe the state of the electronic device 2. For example, some electronic devices 2 include a shooting assembly 20 and have an image shooting function. The electronic device 2 indicates the shooting state of the electronic device 2 by emitting the indicator light in the state where the image shooting function is enabled, so as to prompt the surrounding personnel that the electronic device 2 is shooting, thereby avoiding unauthorized shooting of the person being shot or other improper shooting behaviors. However, in some cases, the user of the electronic device 2 may unintentionally or intentionally block the emission area of the indicator light, so that the surrounding personnel cannot know that the electronic device 2 is in the shooting state through the indicator light.

[0037] With reference to Figure 4 and Figure 5 The shielding detection device 30 of the embodiment of the present application includes a housing 31, a sensor assembly 32, and a visible light source group 33. The sensor assembly 32 and the visible light source group 33 are respectively electrically connected with a control circuit 40, and the control circuit 40 can realize signal interaction with the sensor assembly 32 and the visible light source group 33. The housing 31 has a mounting cavity, and the surface of the housing 31 has a light transmission hole 311 which is in communication with the outside and the mounting cavity. The light transmission hole 311 can be arranged on the view window 13 or arranged opposite to the view window 13. The sensor assembly 32 and the visible light source group 33 are arranged in the mounting cavity and aligned with the light transmission hole 311. The visible light source group 33 includes at least two visible light sources 331, and can emit the indicator light outward through the light transmission hole 311. The indicator light is visible light S1, which is observed by the human eye. The visible light source 331 can be a light-emitting diode (LED) or other visible light source. When the shooting assembly 20 is in the starting state, the control circuit 40 can control the visible light source 331 of the shielding detection device 30 to emit the indicator light, which is used as the indication of the shooting state of the electronic device 2.

[0038] In a more specific application scenario, with reference to Figure 2 and Figure 3The electronic device 2 can be a smart glasses 1, and the device body 60 can be a glasses body 10. The glasses body 10 can include a frame 11 and legs 12, and the legs 12 are arranged at both ends of the frame 11, the front end of each leg 12 is connected with the frame 11, and the rear end extends backward, and the frame 11 can be provided with a lens. The smart glasses 1 further include a shooting assembly 20 mounted on the glasses body 10. The shooting assembly 20 is used to realize image acquisition in a predetermined direction of the smart glasses 1 under control, and a control circuit 40 is electrically connected with the shooting assembly 20 and the occlusion detection device 30 respectively. After the control circuit 40 controls the light source to emit indicating light in a shooting prompt mode, the indicating light is emitted outward through the light transmission hole 311 and the window 13 of the glasses body 10. Preferably, the direction of the indicating light emitted through the window 13 and the shooting direction of the shooting assembly 20 are towards the same direction, for example, arranged on the same side of the glasses body 10, so as to ensure that the person being photographed can clearly see the indicating light and know that he is being photographed in the process of shooting by the shooting assembly 20.

[0039] According to the needs of actual application scenarios, the shooting assembly 20 and the occlusion detection device 30 can be mounted on the frame 11 or the leg 12. In an embodiment, the shooting assembly 20 and the occlusion detection device 30 can be mounted on the frame 11. The frame 11 has a mounting space, and the mounting space is in communication with the surface of the frame 11 through a mounting hole formed on the frame 11, the occlusion detection device 30 is arranged in the mounting space, and the window 13 is arranged on the frame 11. The control circuit 40 can be arranged in the leg 12, arranged in the frame 11, or distributed in the frame 11 and the leg 12. The control circuit 40 can include a processor and a circuit connected between the processor and the occlusion detection device 30, the shooting assembly 20 and other elements in the smart glasses 1. Alternatively, a flexible printed circuit board 35 (FPC) can be used to realize electrical connection between the occlusion detection device 30 and the processor, and between the shooting assembly 20 and the processor. The control circuit 40 can be arranged in the leg 12, arranged in the frame 11, or distributed in the frame 11 and the leg 12. Preferably, the window 13 and the mounting hole are sealingly mounted, realizing waterproof and dustproof of the smart glasses 1.

[0040] The sensor assembly 32 comprises an ambient light sensor 321, a proximity sensor 322 and an infrared light source 323. The ambient light sensor 321 can detect ambient light entering the installation cavity from the light transmission hole 311 to generate a first detection signal. The infrared light source 323 can emit infrared light S2 outward through the light transmission hole 311, and the proximity sensor 322 can detect the infrared light S2 to generate a second detection signal. In some embodiments, the ambient light sensor 321, the proximity sensor 322 and the infrared light source 323 can be implemented as an integrated three-in-one sensor module, which is beneficial to improve the integration of the occlusion detection assembly. Since when there is an obstacle 3 in front of the view window 13, the light entering the installation cavity through the light transmission hole 311 and reaching the sensor assembly 32 will be affected, causing the detection value of the ambient light sensor 321 or the proximity sensor 322 to change. The control circuit 40 can determine the occlusion state of the view window 13 according to at least one of the first detection signal and the second detection signal, and the determined occlusion state of the view window 13 can represent whether the light emission area is occluded. Thus, the occlusion detection device 30 can realize both the indication of the working state of the electronic device 2 and the occlusion detection. In this case, the control circuit 40 can control the working state of the shooting assembly 20 according to the occlusion state of the view window 13, for example, when the determined occlusion state of the view window 13 is the occluded state, the control circuit 40 can control the shooting assembly 20 to be powered off or otherwise stopped shooting to avoid unauthorized shooting behavior by the person being shot. In addition, when the occlusion state of the view window 13 is determined to be the occluded state, the user can be reminded to remove the occlusion of the view window 13 to continue using the shooting function through the speaker provided on the electronic device 2 to play a prompt sound, or through the display assembly 50 to display prompt information to the user.

[0041] Figure 5 The light reflection schematic diagram when the view window 13 is occluded by the obstacle 3 is schematically shown, wherein the dashed line with arrow in the figure represents the indicator light (visible light S1) emitted by the visible light source group 33, and the double-dotted line with arrow in the figure represents the infrared light S2 emitted by the infrared light source 323. Referring to Figure 5When the visible light source group 33 emits the indication light (visible light S1), if the view window 13 is blocked by the obstacle 3, at least part of the indication light (visible light S1) will be reflected by the obstacle 3 again into the installation cavity and reach the ambient light sensor 321, thus, when the view window 13 is in the blocked state and in the unblocked state, there is a difference in the light reaching the ambient light sensor 321, resulting in a difference in the first detection signal. Thus, the blocking state of the view window 13 can be determined according to the first detection signal. In order to realize more accurate ambient light detection, the first detection signal can be temperature compensated according to the ambient temperature. Generally, the light intensity of the LED and the sensitivity of the ambient light sensor 321 can be considered as a linear relationship in the temperature range of the use scene of the smart glasses 1, then the light intensity P corresponding to the first detection signal = K*T+C, wherein K is the temperature coefficient, T is the ambient temperature, and C is the temperature compensation curve of the visible light source group 33 (LED) and the ambient light sensor 321.

[0042] With reference to the foregoing Figure 5 When the infrared light source 323 emits infrared light S2, if the view window 13 is blocked by the obstacle 3, at least part of the infrared light S2 will be reflected by the obstacle 3 again into the installation cavity and reach the proximity sensor 322, thus, when the view window 13 is in the blocked state and in the unblocked state, there is a difference in the infrared light S2 reaching the proximity sensor 322, resulting in a difference in the second detection signal. Thus, the blocking state of the view window 13 can be determined according to the second detection signal. Preferably, the infrared light source 323 can be a vertical cavity surface emitting laser (VCSEL), and the wavelength of the output beam is 940nm, which is in the near-infrared band, and the ambient light sensor 321 is not sensitive to this band, so as not to easily affect the first detection signal, thereby enhancing the anti-interference. The VCSEL emits light beams perpendicular to the chip surface, has strong beam quality, and has the advantages of low power consumption and fast response, and is suitable for being used as the infrared light source 323 for proximity detection. The proximity sensor 322 can include an infrared light S2 receiver or other infrared light S2 sensitive elements, and the detection range of the proximity sensor 322 is adapted to the wavelength band of the infrared light source 323.

[0043] Optionally, the degree of coincidence between the waveband of the visible light source group 33 and the detection range of the proximity sensor 322 is less than the first degree of coincidence, and the degree of coincidence between the waveband of the infrared light source 323 and the detection range of the ambient light sensor 321 is less than the second degree of coincidence. By controlling the degree of coincidence between the waveband of the indicating light and the detection range of the proximity sensor 322, and the degree of coincidence between the waveband of the infrared light S2 of the infrared light source 323 and the detection range of the ambient light sensor 321, the anti-interference capability of the proximity sensor 322 and the ambient light sensor 321 can be enhanced. The specific values of the first degree of coincidence and the second degree of coincidence can be set according to the need for detection accuracy, and preferably, the first degree of coincidence and the second degree of coincidence can be 0 or a smaller value close to 0.

[0044] Since the indicating light, the infrared light S2 emitted by the embodiment of the present application and the reflected light formed by the reflection of the indicating light and the infrared light S2 encountering the obstacle 3 are incident to the sensor assembly 32 through the same light transmission hole 311, compared with the case where the light path of the indicating light and the light path of the reflected light irradiating the ambient light sensor 321 are two completely separated light paths, the technical solution of the embodiment of the present application can effectively avoid the result that the ambient light sensor 321 cannot produce a detection value change when only the indicating light emission area is blocked, thereby avoiding the problem of invalidation of the blocking detection.

[0045] In an example for comparison, only one visible light source 331 is arranged on one side of the ambient light sensor 321, or multiple visible light sources 331 are arranged on the same side of the ambient sensor, so that when the visible light source 331 emits light, the field of view (FOV) of the ambient light sensor 321 is asymmetric, causing an increase in error of light irradiation on the ambient light sensor 321 in a specific direction.

[0046] Figures 6-8 A schematic view of the installation cavity from the light transmission hole 311. In the embodiment of the present application, with reference to Figures 6-8 The visible light source group 33 is arranged on the outer side of the sensor assembly 32 and located in different radial directions of the ambient light sensor 321, so that when the visible light source group 33 emits light, the ambient light sensor 321 is uniformly illuminated at multiple angles, enhancing the accuracy of detection of the ambient light sensor 321, thereby avoiding the problem of an increase in error of light irradiation on the ambient light sensor 321 in a specific direction existing in the above-mentioned comparative example. For example, the multiple visible light sources 331 of the visible light source group 33 are arranged in a central symmetric or mirror symmetric manner on the outer periphery of the ambient light sensor 321, which can make the FOV of the ambient light sensor 321 more symmetric. Further, the position of the sensor assembly 32 can correspond to the center of the light transmission hole 311, which is conducive to making the light receiving conditions of each region of the ambient light sensor 321 more uniform.

[0047] In some embodiments, referring to Figure 6 and Figure 8 , the visible light source group 33 can include an even number of visible light sources 331, and the visible light sources 331 are arranged in a mirror-symmetrical manner around the outer periphery of the ambient light sensor 321, and the symmetry plane is located at the position of the ambient light sensor 321. In one embodiment, referring to Figure 6 , the visible light source group 33 includes four visible light sources 331, which are arranged in the upper, lower, left, and right directions of the ambient light sensor 321 in the figure, respectively, and the positions of the visible light sources 331 on the left and right sides are mirror-symmetrical and the symmetry plane is located at the position of the ambient light sensor 321, and the positions of the visible light sources 331 on the upper and lower sides are mirror-symmetrical and the symmetry plane is located at the position of the ambient light sensor 321.

[0048] In other embodiments, the visible light sources 331 of the visible light source group 33 are arranged in a central-symmetrical manner around the outer periphery of the ambient light sensor 321. For example, referring to Figure 7 , the visible light source group 33 includes three visible light sources 331, which are arranged around the outer periphery of the sensor assembly 32 and are substantially centrally symmetrically distributed with respect to the center of the ambient light sensor 321.

[0049] In some embodiments, referring to Figure 4 and Figure 8 , the occlusion detection device 30 can further include a light homogenizing device 34, which is arranged on the side opposite to the light transmission hole 311 of the visible light source group 33 and covers the visible light source group 33. The light homogenizing device 34 is a kind of optical element for homogenizing the distribution of light. By arranging the light homogenizing device 34, the uniformity of the indicator light can be further improved, and a relatively uniform indicator light can be achieved even with a small number of visible light sources 331, which is conducive to reducing the volume of the occlusion detection device 30. The light homogenizing device 34 can be a light homogenizing film, a microlens array, a diffractive optical element, or other types of light homogenizing devices 34. In the embodiments of the present application, the light homogenizing device 34 can be a light homogenizing film, which is conducive to reducing the cost and the volume of the occlusion detection device 30. The light homogenizing device 34 can shield the sensor assembly 32 or avoid the sensor assembly 32. In some embodiments, referring to Figure 8 , the light homogenizing device 34 has a hollow hole in the middle to expose the sensor assembly 32, which is conducive to ensuring the sensitivity of the ambient light sensor 321 and the proximity sensor 322.

[0050] In some embodiments, the sensor assembly 32 and the visible light source group 33 can be arranged on the same printed circuit board 35, which is not only conducive to reducing the volume of the occlusion detection device 30, but also facilitates ensuring the relative position of the sensor assembly 32 and the visible light source group 33. The printed circuit board 35 can be a hard printed circuit board 35 or a flexible printed circuit board 35.

[0051] In some embodiments, referring to Figure 4 and Figure 5 , the occlusion detection apparatus 30 further comprises a light guide 36 disposed in the mounting cavity and located on the light path between the light transmission hole 311 and the sensor assembly 32. The light guide 36 is an optical element that guides the light propagation path by total reflection or scattering. The light guide 36 can be made of a high-transmittance material, such as PMMA, PC, glass, etc., which has a higher refractive index than the surrounding environment and controls the light propagation path through a specific shape.

[0052] The occlusion detection apparatus 30 can be disposed close to the photographing assembly 20. Preferably, the shape of the light guide 36 and the selection of the type of the visible light source group 33 and the ambient light sensor 321 can be designed such that the field of view angle of the indication light emitted from the view window 13 is greater than that of the photographing assembly 20, and the field of view angle of the ambient light sensor 321 is greater than that of the photographing assembly 20, so that the visible direction coverage area of the indication light is adapted to the photographing area of the photographing assembly 20.

[0053] In some application scenarios, the ambient light sensor 321 of the occlusion detection apparatus 30 can also be used to detect ambient light, realize function multiplexing, improve the utilization rate of the occlusion detection apparatus 30, and facilitate the miniaturization of the electronic device 2. When the visible light source 331 is not emitting light, the visible light S1 emitted from the view window 13 and the light transmission hole 311 to the ambient light sensor 321 is mainly ambient light. At this time, the first detection signal of the ambient light sensor 321 can reflect the intensity of the ambient light. The control circuit 40 of the smart glasses 1 can determine the intensity of the ambient light according to the first detection signal, and perform corresponding control on the smart glasses 1 according to the determined intensity of the ambient light. Optionally, as shown in Figure 3 , the smart glasses 1 can further comprise a display assembly 50 for displaying images, which can be disposed on the frame 11 and electrically connected to the control circuit 40. When the visible light source 331 is not emitting light, the control circuit 40 determines the ambient light intensity state according to the first detection signal, and when the display assembly 50 is in a display state, the control circuit 40 adjusts the display brightness of the display assembly 50 according to the determined ambient light intensity state. When the intensity of the ambient light increases, the display brightness of the display assembly 50 is increased; when the ambient light intensity decreases, the display brightness of the display assembly 50 is decreased, so that the display brightness of the display assembly 50 can be intelligently adjusted according to the change of the ambient light, and the visual effect of the user watching images is improved. In some embodiments, the display assembly 50 can comprise a micro display, an illumination system, a waveguide, etc., and the adjustment of the display brightness can be realized by adjusting the waveguide, adjusting the current of the illumination system, or other feasible ways, which are not limited in the embodiments of the present application.

[0054] The smart glasses 1 in the embodiments of the present application can start the photographing assembly 20 in response to a photographing request. The photographing request refers to a request for starting the photographing assembly 20 to collect images. Optionally, the user can initiate the photographing request by performing a predetermined operation (for example, clicking a button, a voice instruction, a gesture instruction, etc.) on the smart glasses 1. The control circuit 40 controls the photographing assembly 20 to start photographing when the photographing request is received and other conditions for starting the photographing function are met.

[0055] In one embodiment, when the photographing assembly 20 is started, the control circuit 40 can enter the obstruction detection mode. When entering the obstruction detection mode, the control circuit 40 controls the visible light source group 33 to emit the indication light to indicate the photographing state. When the visible light source group 33 emits the indication light, the first detection signal may

[0056] In another embodiment, the control circuit 40 can also control the visible light source group 33 to emit light before starting the photographing assembly 20 after receiving the photographing request, and start the photographing function of the photographing assembly 20 when the determined obstruction state of the window 13 is the unobstructed state. When the photographing assembly 20 is in sleep or power-off state, the control circuit 40 can control the visible light source group 33 to stop emitting the indication light.

[0057] In some embodiments, when entering the obstruction detection mode, the control circuit 40 controls the visible light source group 33 to emit the indication light, controls the infrared light source 323 to emit the infrared light S2, and determines the obstruction state of the window 13 according to the first detection signal of the ambient light sensor 321 and / or the second detection signal of the proximity sensor 322. Preferably, when any one of the first detection signal and the second detection signal meets a corresponding specific condition, it can be determined that the obstruction state of the window 13 is obstructed, thereby improving the sensitivity of obstruction detection, and avoiding the problem that the obstruction of the window 13 by the obstacle 3 with high absorption rate of visible light S1 and low absorption rate of infrared light S2, or the obstacle 3 with high absorption rate of infrared light S2 and low absorption rate of visible light S1 cannot be detected.

[0058] In some embodiments, the control circuit 40 can control the visible light source group 33 to turn on and off in a time sequence, i.e., control the visible light source group 33 to alternately emit light and turn off in a predetermined period. For example, each period includes alternately arranged first and second time periods, the control circuit 40 controls the light source to emit light in the first time period and turn off in the second time period. The length of the second time period can be a small value, and in this embodiment, the length of the second time period can be less than 0.1 seconds. The control circuit 40 determines the on light intensity value and the off light intensity value according to the first detection signal in the time sequence of the first and second time periods. The on light intensity value is the light intensity value corresponding to the first detection signal when the visible light source group 33 emits light, and the off light intensity value is the light intensity value corresponding to the first detection signal when the visible light source group 33 turns off. The first light intensity difference is defined as the difference between the on light intensity value and the off light intensity value. When there is an obstacle 3 in front of the window 13, the obstacle 3 will reflect the indicator light, so there is a certain difference in the first detection signal when the visible light source group 33 emits light and turns off. Therefore, the shielding state of the window 13 can be determined according to the first light intensity difference.

[0059] In an implementation, the shielding state of the window 13 can be determined as being shielded when the first light intensity difference is greater than a first threshold value. The first threshold value can be a large value, i.e., when the difference between the on light intensity value and the reference light intensity value is large, it indicates that there may be an obstacle in front of the window 13 that blocks the indicator light and forms a large intensity of reflected light. Therefore, the shielding state of the window 13 can be determined as being shielded. The control circuit 40 can also determine the shielding state of the window 13 as being shielded when the light intensity value corresponding to the second detection signal is greater than a second threshold value.

[0060] In some embodiments, the shielding state of the window 13 can also be determined according to the light intensity value corresponding to the first detection signal of the ambient light sensor 321 when the visible light source group 33 emits the indicator light. When the first detection signal is greater than a third threshold value or less than a fourth threshold value, the shielding state of the window 13 is determined as being shielded, wherein the fourth threshold value is less than the third threshold value. The third threshold value can be a large value, i.e., when the first detection signal is large, it indicates that there may be an obstacle in front of the window 13 that blocks the indicator light and forms a large intensity of reflected light. Therefore, the shielding state of the window 13 can be determined as being shielded. Since a part of the ambient light is also blocked when there is an obstacle 3 in front of the window 13, the incident ambient light is also reduced. Therefore, when the first detection signal is less than the fourth threshold value, it may be because there is an obstacle 3 with a high visible light S1 absorption rate, and thus the shielding state of the window 13 can be determined as being shielded.

[0061] The intelligent glasses 1, the shielding detection device 30 and the electronic equipment 2 of the embodiment of the application, by arranging the sensor assembly 32 in the mounting cavity of the shell 31 and aligning the sensor assembly 32 with the light transmission hole 311 of the shell 31, the sensor assembly 32 comprises an ambient light sensor 321, a proximity sensor 322 and an infrared light source 323, at least two visible light sources 331 are arranged in different radial directions of the ambient light sensor 321, the control circuit 40 controls the visible light source group 33 to emit indicating light, controls the infrared light source 323 to emit infrared light S2, determines the shielding state of the view window 13 according to at least one of the first detection signal of the ambient light sensor 321 and the second detection signal of the proximity sensor 322, the exit region of the indicating light and the light entrance region of the shielding detection share the same light transmission hole 311, the situation that the shielding detection is invalid when only the indicating light exit region is shielded is avoided, and by the position setting of the visible light source 331, the field of view angle of the ambient light sensor 321 is relatively symmetrical in each direction, which is beneficial to improve the sensitivity and accuracy of the shielding detection.

[0062] The above only describes the preferred embodiments of the application and is not used to limit the application. The application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A smart glass, characterized by, The application relates to an intelligent glasses, comprising: a glasses body, a surface of the glasses body having a view window; a control circuit; and an occlusion detection device arranged on the glasses body, the occlusion detection device comprising: a housing having a mounting cavity, the housing having a light transmission hole communicating between the outside and the mounting cavity, the light transmission hole being aligned with the view window; a sensor assembly electrically connected with the control circuit, the sensor assembly being arranged in the mounting cavity and aligned with the light transmission hole, the sensor assembly comprising an ambient light sensor, a proximity sensor and an infrared light source, the ambient light sensor being configured to detect ambient light to generate a first detection signal, the proximity sensor being configured to detect infrared light to generate a second detection signal; and a visible light source group comprising at least two visible light sources, the visible light source group being arranged in the mounting cavity and electrically connected with the control circuit, the visible light sources being arranged outside the sensor assembly and located in different radial directions of the ambient light sensor; wherein the control circuit is configured to: in an occlusion detection mode, control the visible light source group to emit indicating light, and control the infrared light source to emit infrared light; determine an occlusion state of the view window according to at least one of the first detection signal and the second detection signal; and control a working state of the intelligent glasses according to the occlusion state of the view window.

2. The smart glasses of claim 1, wherein, The visible light sources of the visible light source group are arranged in a central symmetric or mirror symmetric manner outside the ambient light sensor.

3. The smart glasses of claim 1, wherein, The occlusion detection device further comprises a light homogenizing device arranged on a side opposite to the light transmission hole and covering the visible light source group.

4. The smart glasses of claim 1, wherein, The sensor assembly and the visible light source group are arranged on the same printed circuit board.

5. The smart glasses of claim 1, wherein, In the occlusion detection mode, the control of the visible light source group to emit indicating light comprises: controlling the visible light source group to alternately emit light and turn off according to a predetermined period. The first detection signal corresponds to an open light intensity value when the visible light source group emits light, and the first detection signal corresponds to a closed light intensity value when the visible light source group turns off. The determination of the occlusion state of the view window according to at least one of the first detection signal and the second detection signal comprises: determining the occlusion state of the view window according to at least one of a first light intensity difference and the second detection signal, the first light intensity difference being a difference between the open light intensity value and the closed light intensity value.

6. The smart glasses of claim 5, wherein, The determination of the occlusion state of the view window according to at least one of the first light intensity difference and the second detection signal comprises: when the first light intensity difference is greater than a first threshold value, determining that the occlusion state of the view window is occluded; and when the second detection signal corresponds to a light intensity value greater than a second threshold value, determining that the occlusion state of the view window is occluded.

7. The smart glasses of claim 1, wherein, The coincidence degree of a wave band in which the visible light source group emits light and a detection range of the proximity sensor is less than a first coincidence degree, and the coincidence degree of a wave band in which the infrared light source emits light and a detection range of the ambient light sensor is less than a second coincidence degree. The determination of the shielding state of the window according to at least one of the first detection signal and the second detection signal comprises: when the light intensity value corresponding to the second detection signal is greater than a second threshold value, determining that the shielding state of the window is shielded; and when the first detection signal is greater than a third threshold value or less than a fourth threshold value, determining that the shielding state of the window is shielded, the fourth threshold value being less than the third threshold value.

8. The smart glasses of claim 1, wherein, The smart glasses further comprise: a shooting assembly arranged on the glasses body and electrically connected with the control circuit; wherein the control circuit is configured to: when the shooting assembly is started, enter the shielding detection mode; the control of the working state of the smart glasses according to the shielding state of the window comprises: when the shielding state of the window is the shielded state, controlling the shooting assembly to stop shooting.

9. The smart glasses of claim 8, wherein, The shielding detection device further comprises: a light guide member arranged in the mounting cavity and located on the light path between the light transmission hole and the sensor assembly; The shielding detection device is arranged close to the shooting assembly, the field angle of the indication light emitted from the window is greater than the field angle of the shooting assembly, and the field angle of the ambient light sensor is greater than the field angle of the shooting assembly.

10. An occlusion detection device, characterized by comprise: a housing having a mounting cavity, the housing having a light transmission hole communicating between the outside and the mounting cavity; a sensor assembly electrically connected with the control circuit, the sensor assembly being arranged in the mounting cavity and aligned with the light transmission hole, the sensor assembly comprising an ambient light sensor, a proximity sensor and an infrared light source, the ambient light sensor being configured to detect ambient light to generate a first detection signal, the proximity sensor being configured to detect infrared light to generate a second detection signal; and a visible light source group comprising at least two visible light sources, arranged in the mounting cavity and electrically connected with the control circuit, the visible light sources being arranged outside the sensor assembly and located in different radial directions of the ambient light sensor.

11. The occlusion detection apparatus according to claim 10, characterized by The visible light sources of the visible light source group are arranged in a central symmetric or mirror symmetric manner outside the ambient light sensor.

12. The occlusion detection apparatus of claim 10, wherein The shielding detection device further comprises a light homogenizing device arranged on the side opposite to the light transmission hole and covering the visible light source group.

13. The occlusion detection apparatus of claim 10, wherein The sensor assembly and the visible light source group are arranged on the same printed circuit board.

14. An electronic device, comprising: comprise: a device body having a window on the surface; the shielding detection device according to any one of claims 10-13 is arranged on the device body, and the light transmission hole is arranged on or opposite to the window; and a control circuit electrically connected with the shielding detection device, the control circuit being configured to: in the shielding detection mode, control the visible light source group to emit indication light, and control the infrared light source to emit infrared light; determine the shielding state of the window according to at least one of the first detection signal and the second detection signal; and control the working state of the electronic device according to the shielding state of the window.

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