CN213279945U

CN213279945U - Eyeshield projection arrangement, projecting apparatus

Info

Publication number: CN213279945U
Application number: CN202021497413.2U
Authority: CN
Inventors: 李志�; 金凌琳; 周显武
Original assignee: Shenzhen Dangzhi Technology Co ltd
Current assignee: Shenzhen Dangzhi Technology Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-05-25
Anticipated expiration: 2030-07-24

Abstract

The present application relates to the field of projectors; the eye protection projection device comprises a motion monitoring setting module, a motion monitoring module, a first judgment module, a face recognition module, a second judgment module and a control module, wherein the motion monitoring setting module is used for setting a motion monitoring area; the motion monitoring module is used for monitoring a moving object in a motion monitoring area; the first judging module is used for judging whether a moving object enters the early warning area or not, and the face recognition module is used for judging whether the moving object enters the early warning area or not and carrying out face feature recognition on the moving object; the second judging module judges whether the facial features are identified or not, and the control module is used for turning off a light source of the projection equipment when the moving object enters the projection area when the facial features are identified; when the person does not enter the projection area, the person is tracked and identified in advance, and the light source can be turned off in time when the person enters the projection area, so that the projection light source is prevented from irradiating the human eyes, and the safety is improved.

Description

Eyeshield projection arrangement, projecting apparatus

Technical Field

The utility model relates to a projection field especially relates to an eyeshield projection arrangement, projecting apparatus.

Background

The projector is a device capable of projecting images or videos onto a curtain, and generally comprises a projection imaging system and an optical amplification system, wherein projection signals are processed into image signals through the imaging technology of the projector, and the image signals can be projected and displayed on the curtain or a screen through the amplification of the optical system, the light source of the projector is mostly a high-intensity gas discharge light source, an LED light source or a novel light source represented by a laser light source, and the like, in the projection process, the light source has high illumination and high temperature, because people usually enter into the area of the image projected by the projector during the speech or lecture, at the moment, if people carelessly and directly view the light source of the projector through eyes, the eyes can be damaged to different degrees, certain potential safety hazards exist, the projector on the market does not have the protection function of actively protecting the eyes, the safety factor is low, so that the potential safety hazards become larger and larger along with the popularization of the projector, the utility model is inconvenient for people to use in daily life and has poor practicability.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an eyeshield projection arrangement, projecting apparatus refers in particular to one kind and can realize opening or closing of projection light source through detecting moving object and face identification to an eyeshield projection arrangement, projecting apparatus that people's eye protected realize.

In order to solve the problems, the utility model provides an eye protection projection device, which comprises a motion monitoring setting module, a motion monitoring module, a first judging module, a face recognition module, a second judging module and a control module,

the motion monitoring setting module is used for setting a motion monitoring area, so that the motion monitoring area is the same-direction area of a projection area of the projection equipment;

the motion monitoring module is used for monitoring a moving object in the motion monitoring area;

the first judgment module is used for judging whether a moving object enters an early warning area, and the early warning area is a peripheral area which is away from the projection area by a preset distance;

the face recognition module is used for the first judgment module to judge that a moving object enters the early warning area and carry out face feature recognition on the moving object;

the second judging module is used for judging whether the moving object identifies facial features;

the control module is used for the second judging module to judge and identify the facial features, and the light source of the projection equipment is turned off when the moving object enters the projection area.

Preferably, the motion monitoring setting module includes a range limiting unit and a motion monitor, the motion monitor is disposed in the range limiting unit, and an opening of the range limiting unit is disposed in the same direction as a projection area of the projection apparatus, so that a motion monitoring range of the motion monitor and the projection area of the projection area are in the same direction.

Preferably, the height and the opening shape of the range limiting unit are set such that the motion monitoring region of the motion monitor coincides with the early warning region and the projection region.

Preferably, before performing facial feature recognition on the moving object, the method further includes: and judging the size of the moving object, and when the volume of the moving object is smaller than a preset volume threshold value, not performing facial feature recognition.

Preferably, before performing facial feature recognition on the moving object, the method further includes: and judging the movement speed of the moving object, and when the movement speed of the moving object is greater than a preset speed threshold, not performing facial feature recognition.

Preferably, the facial feature recognition of the moving object includes: shooting an area of a moving object to acquire an image to be identified; and carrying out facial feature recognition on the image to be recognized.

Preferably, the facial feature recognition of the image to be recognized comprises judging whether the image to be recognized comprises one or more of a feature eye, a feature jaw, a feature lip, a feature eyebrow and a feature ear.

Preferably, the method further comprises, after turning off the light source of the projection apparatus: and judging that the moving object leaves the early warning area, and starting a light source of the projection equipment if the moving object leaves the early warning area.

Preferably, the motion monitoring module is a motion sensor, the facial recognition module is a camera, and the motion sensor and the camera are arranged right in front of the eye protection projection device.

In order to solve the above problem, the utility model also provides a projector, including the ray apparatus that has the light source, the ray apparatus sends ray formation projection area, still includes as above-mentioned arbitrary eyeshield projection arrangement.

The beneficial effects of the utility model embody: the utility model aims at an eyeshield projection arrangement, projecting apparatus, eyeshield projection arrangement, including motion monitoring setting module, motion monitoring module, first judgement module, facial recognition module, second judgement module and control module, motion monitoring setting module is used for setting up the motion monitoring region, makes the motion monitoring region be the syntropy region of projection equipment projection area; the motion monitoring module is used for monitoring a moving object in the motion monitoring area; the first judgment module is used for judging whether a moving object enters an early warning area, and the early warning area is a peripheral area which is away from the projection area by a preset distance; the face recognition module is used for the first judgment module to judge that a moving object enters the early warning area and carry out face feature recognition on the moving object; the second judging module is used for judging whether the moving object identifies facial features; the control module is used for the second judging module to judge and identify the facial features, and when the moving object enters the projection area, the light source of the projection equipment is turned off; the person is tracked and identified in advance when not entering the projection area, the light source can be turned off in time when the person enters the projection area, the projection light source can be well prevented from directly irradiating the eyes of the person, the safety level of the projector is improved, and the protection function is realized.

Drawings

Fig. 1 is a schematic structural view of an eye protection projection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a projector according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a projector according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a projector according to a third embodiment of the present invention;

fig. 5 is a third schematic structural diagram of a projector in the third embodiment of the present invention.

Fig. 6 is a flowchart of an eye protection projection method according to a fourth embodiment of the present invention.

Fig. 7 is a schematic view of monitoring, early warning and projection areas related to an eye protection projection method in the fourth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

When embodiments of the present invention refer to the ordinal numbers "first", "second", etc., it should be understood that the terms are used for distinguishing only when they do express the ordinal order in context.

Example one

In order to solve the above problem, the present invention further provides an eye protection projection apparatus 101, as shown in fig. 1, including a motion monitoring setting module 1011, a motion monitoring module 1012, a first determining module 1013, a face recognition module 1014, a second determining module 1015 and a control module 1016, where the motion monitoring setting module 1011 is configured to set a motion monitoring area, so that the motion monitoring area is a same-direction area of a projection device; the motion monitoring module 1012 is configured to monitor a moving object in the motion monitoring area; the first judging module 1013 is configured to judge whether a moving object enters an early warning area, where the early warning area is a peripheral area having a preset distance from the projection area; the facial recognition module 1014 is configured to, when the first determining module 1013 determines that a moving object enters the early warning area, perform facial feature recognition on the moving object; the second determining module 1015 is configured to determine whether a facial feature is identified, and the control module 1016 is configured to turn off the light source of the projection apparatus when the moving object enters the projection area when the second determining module 1015 determines that the facial feature is identified.

Example two

The present invention further provides a projector 1, as shown in fig. 2, including an optical machine having a light source 1017, the optical machine emitting rays to form a projection area, and an eye protection projection device 101 for setting a motion monitoring area, so that the motion monitoring area is a same direction area of the projection device; monitoring the moving object in the motion monitoring area, and judging whether the moving object enters an early warning area, wherein the early warning area is a peripheral area which is a preset distance away from the projection area; if a moving object enters the early warning area; and carrying out facial feature recognition on the moving object, and if facial features are recognized, turning off a light source of the projection equipment when the moving object enters the projection area. It is noted that the projector herein is an example of a projection device.

EXAMPLE III

For better explaining the projector of the present application, as shown in fig. 3, the projector 4 provided in the present application and the eye-protecting projection device 401 provided in the projector 4 are provided, where the eye-protecting projection device 401 includes a motion monitoring setting module 4011, a motion monitoring module 4012, a first judging module 4013, a facial recognition module 4014, a second judging module 4015 and a control module 4016, and as can be seen from the figure, the modules are electrically connected through signal transmission, and the motion monitoring setting module 4011 is configured to set a monitoring area of the motion monitoring module 4012, so that the motion monitoring area is a same-direction area of a projection area of the projection device; the motion monitoring module 4012 monitors a moving object in the monitoring area, when the moving object enters the monitoring area, the motion monitoring module 4012 monitors the moving object, and sends the motion condition to the first judging module 4013, the first judging module 4013 judges whether the moving object enters the early warning area, the early warning area is a peripheral area having a preset distance from the projection area, when the first judging module 4013 judges that the moving object enters the early warning area, a signal is sent to the face recognition module 4014, the face recognition module 4014 identifies the face feature of the moving object, the condition of the face feature identification is fed back to the second judging module 4015, the second judging module 4015 judges whether the face feature is identified, if the face feature is identified, the second judging module 4015 sends the signal to the control module 4016, the control module 4016 turns off the light source 1017 of the projector 4 when the moving object enters the projection area, and it is determined whether the moving object enters the projection area by the motion monitoring module 4012. Specifically, in this embodiment, the motion monitoring setting module 4011 may set the motion monitoring area by software, or may set the monitoring range of the omnidirectional motion monitor in a limited manner, that is, the setting of the monitoring area is completed by a hardware structure. Specifically, the omnidirectional motion monitor may be disposed at a bottom of a range limiting unit, the range limiting unit has an opening direction, the opening direction of the range limiting unit is the same as the projection area direction of the projection apparatus, and the range limiting unit enables the motion sensor to monitor motion of only a moving object in the opening direction range.

Furthermore, in order to better reduce unnecessary monitoring of moving objects, the shape and height of the opening of the range limiting unit can be set, so that the sensing area of the motion sensor is just overlapped with the early warning area and the projection area, namely the overlapping area of the monitoring area of the motion sensor and the early warning area and the projection area is equal in size, namely, the motion sensor only monitors the moving objects in the early warning area and the projection area during working, other areas cannot monitor, the monitoring area of the motion sensor is reduced, the data processing amount of the motion sensor is reduced, and the monitoring accuracy is improved.

In order to facilitate image acquisition for facial feature recognition, it is preferable that the facial image acquisition device is disposed right in front of the projector, near the lens attachment of the projector. The image acquisition device here may be a camera.

In an embodiment of the present application, as shown in fig. 4, the projector 4 further includes a volume measurement module 4018, and in order to reduce unnecessary facial feature recognition processing, the volume measurement module 4018 is configured to determine a volume size of the moving object before the facial feature recognition module 4014 performs facial feature recognition on the moving object, and when the volume of the moving object is smaller than a preset volume threshold, the facial feature recognition is not performed. The volume threshold value can be set according to an empirical value, or can be set by self-defining according to the needs of a user, and it should be understood that because a human body has a certain volume, before facial feature recognition is performed on a moving object, whether the human body is a person or not can be judged, if not, facial feature recognition is not necessary, and under normal conditions, the relative ratio of the volume area of the human body is larger, for example, the human body is larger than the volume area of a table tennis ball and is larger than a kitten or a puppy, when the volume of the moving object is smaller than the preset threshold value, facial feature recognition can be not considered, and because the human body can be judged not to be a person, human eye damage can also be caused.

In an embodiment of the present application, as shown in fig. 5, the projector 4 further includes a speed measuring module 4019, where the speed measuring module 4019 is configured to determine a moving speed of the moving object before the facial recognition module 4014 performs facial feature recognition on the moving object, and when the moving speed of the moving object is greater than a preset speed threshold, the facial feature recognition is not performed. Since the area of the projection device is relatively limited, if the moving object rapidly passes through the area, the bright light of the projection device is not as strong as to enter the human eyes, and the human has already passed through the projection area, and if the speed of the moving object is too fast, it can also be determined that the moving object may be only a rapidly flying ping-pong ball, or a rapidly running kitten, etc., so that before the moving object performs facial feature recognition, the method further comprises: and judging whether the movement speed of the moving object is greater than a preset speed threshold, wherein the speed threshold can be set according to an empirical value or according to the requirements of a user, and when the speed threshold is greater than the speed threshold, the person can quickly pass through the projection area, strong light can pass through the projection area before entering the eyes, the eyes cannot be affected, and then subsequent facial feature recognition processing and light source closing processing of the projection equipment are not needed. Of course, exceeding the speed threshold may also be understood as the passing of an animal or other object through the projection area, again without the necessity of subsequent facial feature recognition processing and the turning off of the light source of the projection device.

Example four

Fig. 6 is a flowchart of an eye protection projection method according to an embodiment of the present invention, that is, a specific implementation schematic diagram is shown in fig. 6, and the method includes: the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

step S100: setting a motion monitoring area, wherein the motion monitoring area is the same-direction area of a projection area of the projection equipment;

the utility model provides a motion monitoring region makes a response region who indicates motion monitor, specific motion monitor can be motion sensor, general motion monitor has the response region of comparison all around, that is to say, it is regional to the response that spreads all around to regard as the center with the motion monitor, and relative projection equipment, its projection generally only can be to a direction, carry out the projection formation projection region in certain direction promptly, the common dead ahead that is projection equipment, only need move the monitoring response to the regional syntropy region of projection this time just, because projection equipment only is in this region, just can enter into the projection region easily, and then projection equipment's light gets into people's eye. This reduces the sensing area of the motion monitoring device and reduces unnecessary sensing. Such as a person moving behind the projection device, which is not able to enter the projection area anyway, without the possibility of eye damage, it is not necessary to monitor the movement of the area. Specifically, if a certain motion sensor is an omnidirectional sensor, if the motion sensor has a motion monitoring range adjusted by software, the motion monitoring range is set to be consistent with the direction of the projection area of the projection equipment, that is, only one side of the projection direction of the projection equipment is subjected to motion monitoring, so that even if a person moves behind the projection equipment, motion monitoring cannot be triggered, and invalid motion monitoring of the motion monitoring is reduced. At that time, if the mobile motion monitoring area cannot be adjusted by software, a range limiting unit may be provided, and the mobile sensor is placed at the bottom of the range limiting unit, the range limiting unit has an opening direction, so that the opening direction of the range limiting unit is the same as the projection area direction of the projection device, and the range limiting unit enables the mobile sensor to monitor the motion of the mobile object only in the opening direction range.

Step S200: monitoring a moving object in the motion monitoring area;

in this step, the specific motion monitoring device detects a moving object, which includes moving people, moving animals, moving objects and so on, in a motion monitoring area, that is, in the same direction as the projector. For example, a motion sensor is used as a motion monitoring device, and if an individual walks in front of the projection device, the motion sensor will monitor the motion, and similarly, only a cat running in front of the projection device, or a table tennis ball flying in front of the projection device, etc. will be sensed and monitored by the motion sensor. The specific monitoring can comprise the motion parameters of the motion speed, the motion direction, the motion area and the like.

Step S300: judging whether a moving object enters an early warning area, wherein the early warning area is a peripheral area which is away from the projection area by a preset distance;

in this step, as shown in fig. 7, 1 is a projection device, 2 is a projection area of the projection device, 3 is a motion monitoring area, and 4 is an early warning area. Specifically, the projection area may have a distance from the projection device to the display screen, or the like, according to a lens of the projection device. As can be seen from the figure, the motion monitoring region 3 is in the same direction as the projection region 2, and the area of the motion monitoring region 3 is much larger than that of the projection region 2, i.e. the motion monitoring region 3 includes the projection region 2. The area with a certain preset distance in the peripheral area of the projection area 2 is the early warning area 4, the specific preset distance can be 0.3 meter, 0.5 meter, 0.8 meter, 1 meter, 1.2 meter, 1.5 meter and the like, the early warning area can be set according to specific conditions, the limitation is not enough, it is understood that the early warning area is in the periphery of the projection area, and the moving object enters the early warning area to indicate that the moving object has a high possibility to enter the projection area. In the step, the moving object in the motion monitoring area is judged, whether the moving object enters the early warning area is judged, if the moving object enters the early warning area, the step S400 is performed, and if the moving object does not enter the early warning area, the moving object in the motion monitoring area is continuously monitored.

Step S400: performing facial feature recognition on the moving object;

in this step, it is mainly determined whether the moving object is a person, and it is mainly determined whether the moving object is facing the projection apparatus. The facial feature recognition of the moving object in the step has two functions, and whether the moving object faces the light emitting surface of the projection equipment, namely the light machine is judged while whether the moving object is a person is judged. Specifically, various mature face recognition technologies can be adopted, such as a series of related analysis technologies for acquiring images or videos containing human faces by using a camera or a video camera, automatically detecting image information, tracking the human faces, and performing face analysis on the detected human faces. Face detection refers to extracting a face image which is interested by people from a complex background. Face detection problems are further complicated by factors such as facial hair, cosmetics, lighting, noise, face tilt and size variations, and various occlusions. The face recognition technology mainly aims to search a specific face area on the whole input image so as to prepare for subsequent face recognition. Preferably, since the step does not specifically identify a person, but only needs to simply judge whether the person is a person or not and judge whether the face of the person is opposite to the projection device through the face of the person, the system can be intensively trained by using a statistical method through a face positive sample library and a face negative sample library which are formed by collecting a large number of images of the face and the non-face, so that the modes of the face and the non-face are detected and classified. Thus, a recognition and then discrimination can be rapidly carried out. Face detection by using color, contour, texture, structure, histogram feature, or the like may also be employed. Specifically, for example, it may be determined whether the image to be recognized includes one or more of a feature eye, a feature jaw, a feature lip, a feature eyebrow, and a feature ear, that is, it may be extracted by simple image acquisition, and then it may be determined whether the shape of the image to be recognized has features of a human face or partial features for quick determination. That is, in this step, if it is recognized that the moving object has facial features, the process proceeds to step S500, and if no facial features are recognized, it can be said that the moving object is not a person or is not a light emitting source facing the projection apparatus, and therefore, the eye of the person is not injured, so that it is negligible, and the light source of the projection apparatus is not turned off subsequently.

Step S600: if the facial features are identified, the light source of the projection device is turned off when the moving object enters the projection area.

In this step, since it is known in step S500 that the moving object is a person and the face of the moving object is facing the front of the projection device, the moving object enters the projection area, and the strong light of the projection device directly irradiates the eyes of the moving object to damage the eyes, so that the light source of the projection device is turned off when the moving object enters the projection area, thereby avoiding damage to the eyes of the moving object, and well protecting the user from damage to the eyes caused by the strong light entering the projection area inadvertently during use. Of course, in the above step S500, if it can be determined that the moving object is a person, but it does not recognize that the moving object has facial features, which indicates that the moving object does not face the projection device at that time, then the person may perform facial feature acquisition on the moving object in real time if the moving object enters the projection area, that is, when the moving object performs facial feature acquisition on the projection area in real time, once the facial features of the moving object are acquired, the light source of the projection device is immediately turned off, so that the situation that the person suddenly turns to the front face in the projection area and faces the projection device and strong light enters human eyes to damage the moving object is avoided.

By adopting the technical scheme, firstly, the motion monitoring area is greatly reduced, the monitoring of unnecessary motion objects is avoided, the processing amount of equipment is reduced, the processing efficiency is improved, meanwhile, the identification of the motion objects is completed in the early warning area by setting the early warning area, namely, whether the motion objects are human or not is accurately judged, whether the faces of the motion objects are right opposite to the projection equipment is judged, when a human enters the projection area, the operation of closing a light source of the projection equipment can be rapidly carried out, the processing time of closing the projection equipment is greatly reduced, instead of judging and closing the projection equipment after the human enters the projection area, certain damage to human eyes can be caused, the situation can be better avoided, and the human face identification can be carried out only when the motion objects enter the early warning area, instead of performing face feature recognition on all moving objects in the motion monitoring area, that is, a moving object which has a high possibility of entering the projection area can perform the face feature recognition processing, so that the processing amount in the whole process is reduced, some processes which do not need face recognition are reduced, and the processing process is optimized.

Further, in order to better reduce some unnecessary monitoring and optimize the processing procedure, in the process of step S100, after setting the opening of the range limiting unit to be in the same direction as the projection area of the projection device, the method further includes: the height and the opening shape of the range limiting unit are adjusted to enable the motion monitoring area of the motion monitor to be coincident with the early warning area and the projection area, namely the motion monitoring area just comprises the projection area and the early warning area, other areas do not need to be monitored, namely, a motion monitoring device can monitor the motion object only when the motion object enters the early warning area, for example, a person enters the early warning area, the motion sensor starts to monitor the motion object and starts facial feature recognition processing, and if the motion sensor does not enter the early warning area, the motion sensor cannot monitor the motion object, and therefore data processing amount of the motion sensor can be reduced. Specifically, if the motion monitor has a software setting function, the motion monitoring area parameters of the motion monitor can be adjusted through software, the projection area of the projection equipment is obtained, the early warning area of the projection equipment is obtained, the sensing area of the motion monitor is set through the relevant information of the sensing area and the early warning area, and if the motion monitor has the motion monitoring area, the motion sensor sets the motion monitoring area of the motion monitor. If the motion monitor has no software adjusting function, the motion monitoring area of the motion monitor can be coincided with the early warning area and the projection area by setting the height and the opening shape of the adjusting and limiting device. For example, if the motion monitor is a motion sensor, the limiting device is a cylindrical object, the motion sensor is placed at the bottom of a cylinder, the opening of the cylinder is arranged in the same direction as the opening of the projection device, and the sensing area of the motion sensor is controlled by adjusting the positions of the cylinder and the light engine of the projector, the height of the cylinder and the shape of the opening of the cylinder, so that the sensing area of the motion sensor just coincides with the early warning area and the projection area.

Further, in order to reduce unnecessary facial feature recognition processing, the method further includes, before performing facial feature recognition on the moving object: and judging the size of the moving object, and when the volume of the moving object is smaller than a preset volume threshold value, not performing facial feature recognition. The volume threshold value can be set according to an empirical value, or can be set by self-defining according to the needs of a user, and it should be understood that because a human body has a certain volume, before facial feature recognition is performed on a moving object, whether the human body is a person or not can be judged, if not, facial feature recognition is not necessary, and under normal conditions, the relative ratio of the volume area of the human body is larger, for example, the human body is larger than the volume area of a table tennis ball and is larger than a kitten or a puppy, when the volume of the moving object is smaller than the preset threshold value, facial feature recognition can be not considered, and because the human body can be judged not to be a person, human eye damage can also be caused.

Further, before performing facial feature recognition on the moving object, the method further comprises: and judging the movement speed of the moving object, and when the movement speed of the moving object is greater than a preset speed threshold, not performing facial feature recognition. Since the area of the projection device is relatively limited, if the moving object rapidly passes through the area, the bright light of the projection device is not as strong as to enter the human eyes, and the human has already passed through the projection area, and if the speed of the moving object is too fast, it can also be determined that the moving object may be only a rapidly flying ping-pong ball, or a rapidly running kitten, etc., so that before the moving object performs facial feature recognition, the method further comprises: and judging whether the movement speed of the moving object is greater than a preset speed threshold, wherein the speed threshold can be set according to an empirical value or according to the requirements of a user, and when the speed threshold is greater than the speed threshold, the person can quickly pass through the projection area, strong light can pass through the projection area before entering the eyes, the eyes cannot be affected, and then subsequent facial feature recognition processing and light source closing processing of the projection equipment are not needed. Of course, exceeding the speed threshold may also be understood as the passing of an animal or other object through the projection area, again without the necessity of subsequent facial feature recognition processing and the turning off of the light source of the projection device. Thus improving the intelligence of the treatment and reducing unnecessary treatments.

Further, since the image capturing device captures all images of the front portion of the projection device, it may capture images of pictures projected on a wall, and if the content played at this time relates to a person, particularly a human face, it may be determined by mistake, and in order to avoid this, the image capturing device may be configured to perform facial feature recognition on the moving object, including: shooting an area of a moving object to acquire an image to be identified; and carrying out facial feature recognition on the image to be recognized. That is to say, only the moving object is subjected to image acquisition, so that the person projected by the projection equipment can be avoided, and the judgment accuracy is improved.

Further, in order to quickly judge whether the moving object is a person and whether the moving object is facing the projection device, the facial feature recognition of the image to be recognized comprises the step of judging whether the image to be recognized comprises one or more of a feature eye, a feature jaw and a feature lip, a feature eyebrow and a feature ear. That is to say, can simply just can carry out the discernment fast through some people's facial features, need not carry out the discernment of whole facial features, only can discern one of them and just can carry out the judgement fast, improve the treatment effeciency, avoid not having handled the moving object and having entered into the projection area, cause the damage to the moving object yet.

Further, if it can be determined that the projection device does not cause damage to the moving object, the projection device may be caused to start the light source again to operate. Specifically, the method further includes, after turning off a light source of the projection apparatus: and judging that the moving object leaves the early warning area, and starting a light source of the projection equipment if the moving object leaves the early warning area.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only Memory (ROM), a Random Access Memory (RAM), or the like.

The eye protection projection method and the related equipment provided by the embodiment of the invention are described in detail, and the description of the embodiment is only used for helping to understand the method and the idea of the invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

The above, it is only the preferred embodiment of the present invention, not right the technical scope of the present invention makes any restriction, the technical personnel of the industry, under this technical scheme's enlightenment, can do some deformation and modification, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of the above embodiment do, all still belong to the technical scheme's scope of the present invention.

Claims

1. An eye protection projection device is characterized by comprising a motion monitoring setting module, a motion monitoring module, a first judging module, a face recognition module, a second judging module and a control module,

2. The eye-shielding projection device of claim 1, wherein the motion monitoring setting module comprises a range limiting unit and a motion monitor, the motion monitor is arranged in the range limiting unit, and the opening of the range limiting unit is arranged in the same direction as the projection area of the projection device, so that the motion monitoring range of the motion monitor and the projection area of the projection area are in the same direction.

3. The eye-shielding projection device of claim 2, wherein the height and the shape of the opening of the range-limiting unit are configured such that the motion-monitoring region of the motion monitor coincides with the pre-warning region and the projection region.

4. The eye-shielding projection device of claim 1, further comprising, prior to facial feature recognition of the moving object: and judging the size of the moving object, and when the volume of the moving object is smaller than a preset volume threshold value, not performing facial feature recognition.

5. The eye-shielding projection device of claim 1, further comprising, prior to facial feature recognition of the moving object: and judging the movement speed of the moving object, and when the movement speed of the moving object is greater than a preset speed threshold, not performing facial feature recognition.

6. The eye-shielding projection device of any one of claims 1-5, wherein performing facial feature recognition on the moving object comprises: shooting an area of a moving object to acquire an image to be identified; and carrying out facial feature recognition on the image to be recognized.

7. The eye-shielding projection apparatus of claim 6, wherein said identifying facial features of the image to be identified comprises determining whether the image to be identified includes one or more of a feature eye, a feature jaw and a feature lip, a feature eyebrow, and a feature ear.

8. The eye-shielding projection device of claim 1, further comprising, after turning off the light source of the projection device: and judging that the moving object leaves the early warning area, and starting a light source of the projection equipment if the moving object leaves the early warning area.

9. The eye-shielding projection device of claim 1, wherein the motion monitoring module is a motion sensor and the facial recognition module is a camera, the motion sensor and the camera being positioned directly in front of the eye-shielding projection device.

10. A projector, comprising an optical engine having a light source, the optical engine emitting radiation to form a projection area, wherein: an eye-shielding projection device according to any one of claims 1-9.