CN114138163A - Intelligent transparent office table - Google Patents

Abstract

An intelligent transparent office table comprises a supporting part, a table top, an enhanced light source, an image acquisition module, a processing control module and a communication module, wherein the supporting part is used for supporting the table top; the desktop is made of a transparent material; the enhanced light source is used for illuminating the inner part of the desktop; the image acquisition module is arranged below the desktop, can shoot upwards to acquire an image of an area where the lower surface of the desktop is located, and the acquired image can be analyzed and processed by the processing control module; the communication module is connected with the processing control module. The invention relates to a computer and intelligent terminal peripheral equipment, which can realize touch interaction with an intelligent terminal on a fully transparent desktop, has low input signal detection difficulty, reliable identification, multi-point touch support and low cost, and has cool look and strong science and fiction sense when interactive operation is carried out on the fully transparent desktop.

Description

Intelligent transparent office table

Technical Field

The invention relates to a computer and intelligent terminal peripheral equipment, in particular to an intelligent transparent office table.

Background

Since office work and study are usually performed on the desktop, the desktop is directly used as an interactive device of an intelligent terminal such as a computer, which brings extremely high convenience, and therefore, the desktop is always a popular research direction. The difficulty of directly using a desktop as an interactive device is that a common desktop lacks a medium required for interaction, and a common scheme mainly includes the following two types in order to make the desktop have an interactive capability.

One solution is to provide the desktop itself with an interactive medium, for example, a touch sensitive panel or a display panel is added on the desktop, so that the desktop becomes a large-sized touch display screen and has input and output interactive capabilities. However, the cost of the large-size touch display screen is very high, the use environment of the desktop is relatively complex, and the touch display screen of the desktop can be damaged by heavy objects, extrusion, collision, impact and other abnormal loads. The touch display screen has the characteristics that once the touch display screen is damaged, the rejection rate is high, the maintenance cost is high, and therefore the defect of the scheme is obvious.

Another solution is to provide interactive capability to the desktop through projection and infrared sensing, for example, the invention patent "information input device and method based on projection and infrared sensing" of samsung electronic corporation, patent No. CN201310739468.8, the main embodiments of the invention are: by using a projection method, a virtual keyboard and mouse interaction area is mapped on the surface of a desktop or other objects through visible light and infrared laser, when any position of the virtual interaction area is clicked by a finger or other touch equipment, an infrared camera unit can detect that a light field is blocked, so that the position information of a click event is identified, the touch and interaction event corresponding to the click event is judged through the position information, and then the touch and interaction event is transmitted to an operated terminal through a communication module, so that the interactive operation of the operated terminal is realized. The most obvious shortcoming of the scheme is that when the scheme is adopted to carry out multi-point touch operation, particularly keyboard input operation, straight line shielding can be formed between operating fingers on an infrared laser light path, so that frequent false recognition and false operation are caused, the input accuracy is greatly reduced, and the interaction experience is poor.

Disclosure of Invention

The invention aims to provide an intelligent transparent office table which is provided with a fully transparent table top, due to the light guide characteristic of a transparent material, after an enhanced light source is adopted to illuminate the inside of the transparent table top, when a finger contacts the upper surface of the table top, the skin of the finger at the contact part is illuminated by the light transmitted from the inside of the table top to form a bright spot, the time and the position information of the bright spot can be recorded by virtue of an upward shooting image acquisition module arranged below the table top, the continuous sampling can accurately acquire the events of clicking, touching, moving and the like of the finger on the table top in real time, and the events are analyzed and mapped into a control instruction of an intelligent terminal through a processing control module to realize the interaction with the intelligent terminal. Compared with two schemes introduced in the background technology, the invention has the advantages of low cost, low input signal detection difficulty, reliable identification, support of multi-point touch and difficult damage, and in addition, because the desktop is made of transparent materials, interactive operation on the transparent desktop looks cooler and the science and fiction feeling is stronger.

The technical scheme for realizing the aim of the invention is as follows:

an intelligent transparent office table comprises a supporting part and a table top, and is characterized by further comprising an enhanced light source, an image acquisition module, a processing control module, a storage module, a communication module and a power supply module, wherein the supporting part is used for supporting the table top; the desktop is made of a transparent material; the enhanced light source is used for illuminating the inner part of the desktop; the image acquisition module is arranged below the desktop, can shoot upwards to acquire an image of an area where the lower surface of the desktop is located, and the acquired image can be analyzed and processed by the processing control module; the storage module is connected with the processing control module; the communication module is connected with the processing control module; the power supply module is used for providing power.

Preferably, the enhanced light source is disposed at a side of the table top, and emits light that is radiated from the side of the table top into the interior of the table top and propagates along the interior of the table top. Furthermore, the horizontal cross section of the desktop is preferably rectangular, and four corners of the rectangular desktop can be rounded for the sake of attractiveness and collision prevention, namely the rectangular desktop is rounded; the table top comprises a first side face, the enhanced light source is preferably a strip-shaped light source and is arranged on the first side face of the table top, the length direction of the enhanced light source is parallel to the first side face of the table top, and light emitted by the enhanced light source enters the interior of the table top in a mode of being perpendicular to the first side face of the table top.

Preferably, the enhanced light source is an infrared light source, and the image acquisition module is a narrow-band infrared camera module corresponding to the wavelength of the infrared light source. The enhancement light source adopts infrared light, which has the advantages that the infrared light is invisible to naked eyes but can be collected and captured by an infrared camera, so that the requirements of the invention on the enhancement light source can be met, and the external environment cannot be polluted by light. The narrow-band infrared camera has the advantage of being free from interference of other ambient light sources.

When the enhanced light source is turned on, if a finger touches the upper surface of the transparent table top, the skin of the finger in the contact area is illuminated, and a remarkable bright spot is formed in an image collected by the image collecting module from the lower part of the transparent table top. It should be noted that the illumination of the finger skin of the contact area refers to the illumination in a physical sense, not the illumination seen by the naked eye, because if the enhancing light source is an invisible infrared light source, the bright spot is not seen by the naked eye, but the bright spot can be captured and photographed by the infrared camera. Different touch operation actions are carried out on the desktop corresponding to different bright spot state information, the state information of the bright spots and the touch operation actions carried out on the transparent desktop are correspondingly preset, namely, a touch operation event occurring on the desktop can be determined through the state information of the bright spots, and then the interaction with the intelligent terminal can be realized through presetting the corresponding relation between the touch operation event and the control instruction. Because the image acquisition module is arranged below the desktop, and the bright spots on the upper surface of the transparent desktop are upward shot from bottom to top, the situation that the image acquisition view field is blocked in a daily use scene can hardly occur. In addition, because the enhanced light source is transmitted along the inside of the glass, the problem of misoperation and misrecognition caused by mutual shielding of laser light paths by operating fingers in the patent of 'information input device and method based on projection and infrared induction' in the background technology does not exist.

Preferably, the desktop is made of transparent glass. The glass has the characteristics of high hardness and high light transmittance, and is not easy to scratch and damage in the using process, so that the durability of the tabletop can be enhanced by adopting the transparent glass, and the tabletop is easy to clean. In addition, the glass material is beautiful, and has strong design feeling and science illusion when being used in interactive products.

Preferably, the image acquisition module is installed on the supporting part, and the shooting direction of the image acquisition module faces to the area where the lower surface of the desktop is located.

Preferably, the present invention further includes an operable area and a keyboard pattern, the operable area is an effective area on the desktop where the interactive operation can be performed, and the keyboard pattern is disposed in the operable area. And carrying out coordinate coding on the area corresponding to each key pattern on the keyboard pattern, carrying out one-to-one correspondence with the key instruction of each key, and storing the area in the storage module, wherein when a user carries out keyboard input operation, a finger clicks a certain key pattern on the keyboard pattern, bright spots are generated at the positions of the key patterns in the image acquired by the image acquisition module, and the processing control module carries out comparison and matching with the coordinate codes according to the positions of the bright spots, so that the keyboard input interaction can be realized.

Preferably, the desktop charging device further comprises a wireless charging module connected with the power supply module, wherein the wireless charging module comprises a wireless charging output coil, and the wireless charging output coil is arranged on the lower surface of the desktop. Because the desktop is transparent, the wireless charging output coil arranged on the lower surface of the desktop can be directly seen through the desktop, so that electronic products such as mobile phones, tablet computers, watches, earphones, electronic writing pens and the like with a wireless charging function can be conveniently placed on the desktop above the wireless charging output coil to perform wireless charging. And because most transparent materials are insulators, even if the wireless charging output coil is a directly exposed copper coil, the use safety on the desktop is not influenced.

Preferably, the multimedia projection table further comprises a projection module and a transparent reflection film, wherein the projection module is arranged below the table top, the transparent reflection film is arranged on the table top, and the projection module can project a multimedia picture on the transparent reflection film on the table top. By means of the projection module and the transparent reflection film, the desktop becomes a panel similar to a touch screen with touch interaction capacity and picture display function. If the multimedia picture source projected by the projection module is an interactive picture, touch interactive operation with the projected picture can be realized in the projection imaging area by defining the touch interactive logic of the projection imaging area, which is similar to the operation of a touch mobile phone, a touch tablet computer and a notebook computer with a touch screen function.

In practical tests, it is found that when a multimedia picture is projected on a transparent reflective film of the desktop, and a finger touches the upper surface of the desktop due to light interference of the projected picture, bright spots observed below the desktop become less noticeable, but this problem can be solved by brightening the brightness of the enhanced light source, and when the brightness of the enhanced light source is bright enough, the bright spots become noticeable and easily recognizable. In addition, due to the total internal reflection confinement of the transparent table top to the light inside the transparent table top, even if the brightness of the enhanced light source is high, the external environment is not substantially polluted by the light. Of course, if the enhanced light source is an infrared light source and the image acquisition module is a narrow-band infrared camera module with a corresponding wavelength, the light of the projection picture basically does not affect the significance of the bright spots, because the light of the projection picture is basically visible light, and the visible light on the narrow-band infrared camera module is cut off and is not sensitive.

Preferably, the device further comprises a plurality of indicator lamps arranged on the supporting part. Since the desktop itself has no display capability, the indicator light is mainly used for indicating some states, such as on-off state indication of some locking keys of the keyboard, and some on-off state indication of the intelligent transparent desk itself.

The invention has the beneficial effects that:

(1) the invention adopts the reason and the principle of enhancing the light source and has the corresponding beneficial effects that:

the invention mainly aims to realize interaction with an intelligent terminal by clicking, touching, moving and other operations on a transparent desktop, and firstly solves the problem of determining whether a finger or other touch equipment is in contact with the desktop, the position coordinate of a contact point on the desktop and whether the contact point is in continuous movement. In order to solve the problem, the invention adopts a method of image visual identification: the desktop is made of transparent materials, and the image acquisition module for upward shooting is arranged below the desktop, so that images of the desktop and objects above the desktop can be shot and acquired through the desktop, and the contact state of fingers or other touch equipment and the desktop is judged through the acquired images;

however, experimental tests show that this contact state is very difficult to identify, taking the contact between a finger and the upper surface of the tabletop as an example, in a shooting angle, the difference between the two states of the finger not contacting the tabletop and the finger already contacting the tabletop is very small, and sufficient contrast, color difference and brightness difference are lacked, so that it is difficult to determine the contact state between the finger and the tabletop during image identification processing, and especially when the ambient light is complicated, the identification difficulty is further increased. Therefore, the scheme of only using the image acquisition module to shoot the transparent desktop upwards cannot realize accurate and reliable contact state identification;

through continuous research and study of the inventor, the problem of identification of the contact state can be well solved if the enhanced light source is introduced to enable the light emitted by the enhanced light source to illuminate the interior of the transparent desktop. The principle is as follows:

the optical characteristics of the transparent material are utilized, for example, when light is transmitted in a piece of transparent glass, since the glass is an optically dense medium and air is an optically sparse medium, if the incident angle of light emitted from the inside of the glass to the outside air is greater than the critical angle of total reflection, total internal reflection occurs, and the light is bound in the glass and cannot escape, and can only be transmitted along the inside of the glass. However, the inventor has found that if there is another object touching the outer surface of the glass, the condition for total internal reflection is no longer true and light will be transmitted from the touch area to illuminate the object touching the glass, since the propagation medium pair of light in the touch area changes from a "glass-air" medium pair to a "glass-touching object" medium pair. The inventors have experimentally verified that when a light beam is incident into a glass from the side of a flat glass placed horizontally, the light propagates along the inside of the glass without escaping from the upper and lower surfaces of the glass, but when the upper surface of the glass is touched with a finger, the skin of the finger touching the glass is illuminated brightly by the light transmitted from the inside of the glass, and a very significant bright spot is formed. The phenomenon discovered by the inventor is utilized, when the incident direction of the enhanced light source is proper, the light emitted by the enhanced light source is constrained inside the desktop, and when fingers click, touch, move and the like on the desktop, the skin of the fingers in contact with the desktop is illuminated to form very obvious bright spots as the fingers contact the upper surface of the desktop, and the obvious bright spots are very easy to identify during image processing and are not easy to generate identification misjudgment. In addition, the bright spot features are remarkable, so that the image recognition is not easily interfered by ambient light, and the method has very high recognition reliability and accuracy;

the multi-point touch recognition is easy to carry out by utilizing the principle, when a plurality of bright spots appear at different positions at the same time, the time and the position of each bright spot are recorded, so that the multi-point touch recognition can be realized, and if the bright spots move continuously, the continuously moving track and displacement of the bright spots can be recorded, so that the touch movement recognition is realized. In addition, because the shape of the contact area generated by the contact of the finger tip and the desktop is characterized obviously, and the contact area is also within a certain range, if the shape or the area of the sampled bright spot obviously does not conform to the shape or the area of the contact area generated by the contact of the finger tip and the desktop, for example, the shape of the bright spot is too long and narrow and irregular, or the area is too large, it can be judged that the bright spot is not generated by the contact of the finger tip and the desktop, and does not belong to effective interactive information, and the bright spot can be directly filtered. Therefore, when other parts of the hand of the user except the fingertips, such as the palm, the side surface of the palm, the wrist and the like, are contacted with the desktop, the normal interactive operation is not interfered;

(2) other beneficial effects of the invention are as follows:

1) compared with the traditional touch screen desktop for realizing desktop interaction, the invention has the advantages of low production cost, low maintenance cost and difficult damage. The main electronic devices of the invention are an image acquisition module, a processing control module, a storage module and a communication module, wherein the image acquisition module is usually a camera, and the processing control module, the storage module and the communication module are usually integrated on the same chip, so that the number of components is very small, the structure is simple, the production cost is low, and even if the projection module is added, the cost of the projection module is not high due to the fact that the projection module is not long-distance and oversized. Because the desktop does not contain electronic components, the capability of bearing external loads such as heavy load, extrusion, collision, impact and the like is obviously stronger than that of a touch screen, and even if the desktop is damaged, the cost of replacing the desktop in maintenance is low because the desktop does not contain electronic components;

2) the method can be applied to large-size table tops, and corresponding cost increase is not obvious along with increase of the touchable operation area of the table tops. The desktop does not contain electronic components;

3) the desktop is made of transparent materials, interactive operation is carried out on the transparent desktop, and the desktop looks cool and has stronger science and illusion;

4) after the projection module is added, the display and interaction functions similar to those of a touch screen can be realized on the desktop;

5) if the enhanced light source is an infrared light source and the image acquisition module is a narrow-band infrared camera module with corresponding wavelength, the recognition of bright spots generated by the contact of fingers with a desktop has strong capability of resisting ambient light interference, and the bright spots cannot be interfered by light of a projected picture when the touch interaction is carried out in a projection imaging area.

It should be noted that the beneficial effects of the present invention are not limited to the above description, and can be understood by combining with the specific technical solutions, and the description of the technical effects and beneficial effects of a specific technical solution is also inserted in the summary of the present invention and the following embodiments.

Drawings

FIG. 1 is a three-dimensional schematic view of an intelligent transparent desk of the present invention, wherein the direction mark in the upper right corner designates all directions mentioned in the present invention, and further, if the "top" and "top" appear in the present invention, the "top" is the same direction as the "up" in the direction mark; if "bottom" or "bottom" is present, the "bottom" is in the same direction as "down" in the orientation indicator.

Fig. 2 is a three-dimensional schematic view of the intelligent transparent office table of the invention with the tabletop separated from the supporting part.

Fig. 3 is an exploded schematic view of the supporting part after the desktop of the intelligent transparent office desk is hidden.

Fig. 4 is a schematic diagram of an intelligent transparent desk according to the present invention showing the projection imaging area.

Detailed Description

The present invention will be further described and illustrated in detail below with reference to examples, embodiments and the accompanying drawings, wherein the examples or embodiments are only a part of the examples or embodiments of the present invention, and not all examples or embodiments. All other embodiments or implementations obtained by a person of ordinary skill in the art based on the embodiments or implementations of the present invention without any creative effort belong to the protection scope of the present invention.

The following description of the examples or embodiments of the invention is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

As shown in fig. 1 to 4, an intelligent transparent desk is used for realizing touch interaction with an intelligent terminal, where the intelligent terminal may be an independent external intelligent device such as a desktop computer, a notebook computer, a smart phone, a tablet computer, a smart television, a smart watch, a smart projector, smart glasses with a display function, or an intelligent device integrated inside the intelligent transparent desk of the present invention and having an interactive operation requirement.

Transparent desk of intelligence includes supporting part, desktop 3, its characterized in that still includes reinforcing light source 5, image acquisition module, processing control module, storage module, communication module, power module, the supporting part is used for supporting desktop 3, desktop 3 is made by transparent material, reinforcing light source 5 is used for illuminating the inside of desktop 3, image acquisition module sets up the below of desktop 3 can be followed the desktop below and is faced upward to shoot the collection the image in transparent desktop 3 place region, its image of gathering can by processing control module analysis processes, storage module with processing control module connects, communication module with processing control module connects, power module is used for providing the power.

Support part embodiment

The supporting part is used for supporting the table top 3; the support part can be understood as a table leg, can be a single-table leg support or a multi-table leg support, and a common four-table leg support can also be used as an embodiment of the support part of the invention. The present invention is not limited to the shape of the support portion, and if the shape of the support portion is simply changed based on the present invention, the present invention should also fall into the protection scope of the present invention.

As shown in fig. 1-4, an embodiment of a supporting portion supported by a single table leg is provided, where the supporting portion includes a base 1, a supporting frame 7, and a table top force-bearing frame 4, the supporting frame 7 is fixed on the base 1, and the table top force-bearing frame 4 is fixed on the supporting frame 7; the tabletop 3 is arranged on the tabletop bearing frame 4. The support frame 7 is fixed on the base 1 by welding, screwing or integrally forming the base 1 and the support frame 7 during manufacturing.

As shown in fig. 3, the supporting frame 7 is preferably composed of two parts, and includes an arc-shaped supporting rod 701 protruding forward in the vertical direction and a T-shaped frame 702 in the horizontal direction, and the T-shaped frame 702 and the supporting rod 701 may be fixed together by welding or screwing, or may be integrally formed during manufacturing. The desktop force-bearing frame 4 and the T-shaped frame 702 of the support frame 7 are fixed together in a screw connection mode. The preferable screw connection mode is that a plurality of vertical screw holes 703 are formed on the T-shaped frame 702, the screw holes 703 can be through holes or can be provided with internal threads, a plurality of corresponding screw holes are also formed at the bottom of the table top bearing frame 4, and the T-shaped frame 702 and the table top bearing frame 4 can be fixed together by screwing a plurality of screws 14 into the screw holes 703 and the screw holes at the bottom of the table top bearing frame 4.

As shown in fig. 3, preferably, the table top force-bearing frame 4 includes a first vertical portion 401, a second vertical portion 402, a third vertical portion 404, and a first horizontal portion 403, the first vertical portion 401 and the third vertical portion 404 are on two sides, the second vertical portion 402 is in the middle, and the first horizontal portion 403 connects the first vertical portion 401, the second vertical portion 402, and the third vertical portion 404 together. A plurality of threaded holes at the bottom of the table top force bearing frame 4 are distributed on the second vertical part 402 and the first transverse part 403. Preferably, the table top force-bearing frame 4 is made of metal, such as stainless steel or aluminum alloy.

Desktop implementation

The desktop 3 is made of transparent materials. It should be noted that the transparent material does not need to be transparent in a strict sense, and the color thereof is not limited, and the transparent material can be regarded as the transparent material in the present invention as long as the material has a light transmission capability. Of course, the higher the light transmittance, the closer to a colorless and transparent material, the more suitable it is for making the table top 3. Transparent glass, transparent resin, transparent plastic and other common natural transparent materials and artificial transparent materials which are common in life can be used as the transparent material. If the kind of the transparent material is simply changed on the basis of the present invention, the protection scope of the present invention should also be included.

The material of the tabletop 3 is preferably transparent glass. Among common transparent materials, glass has the characteristics of high hardness and high light transmittance, and is not easy to scratch and damage in the using process, so that the durability of the tabletop 3 can be enhanced by adopting the transparent glass, and the tabletop is easy to clean. In order to enhance the mechanical property of the table top 3, the table top can also adopt toughened transparent glass, and if the toughness and the strength are further enhanced, laminated transparent toughened glass can also be adopted. If the requirements on the smooth degree of the sliding operation of the fingers on the tabletop 3, difficulty in sticking fingerprints, convenience in cleaning and the like are met, the surface of the transparent glass can be coated with an oil-repellent layer, coated with a film or subjected to other surface treatment.

As shown in fig. 1, 2 and 3, the table top 3 is fixed on the upper surface of the table top bearing frame 4, preferably, the fixing manner is glue joint. When the tabletop 3 is transparent glass and the tabletop bearing frame 4 is metal, preferably, the glue used for bonding is UV shadowless glue, which is also called photosensitive glue or ultraviolet curing glue, and is an adhesive which can be cured only by ultraviolet irradiation, and is particularly suitable for bonding between glass and metal, and has large bonding force, firmness and stability.

Embodiments of operable area of desktop

The operable area 306 is an effective area set on the desktop 3 where interaction is possible, and events such as click, touch, movement, etc. occurring in this area can be responded to, whereas if the area is exceeded, no response is made. The setting of the operable area 306 mainly considers that the image capturing range of the image capturing module and the shielding of the image capturing module by the obstacle formed by the supporting portion, the desktop area beyond the image capturing range of the image capturing module or where the image capturing cannot be captured due to the shielding of the obstacle should be excluded from the operable area 306. When the acquisition range of the image acquisition module includes the whole desktop 3 and the view field of the image acquisition module is not blocked by the obstacle, the whole desktop 3 can be set as the operable area.

Enhanced light source embodiment

As shown in fig. 1, 2 and 3, the enhanced light source 5 is used for illuminating the inside of the tabletop 3. It should be noted that the light emitted by the enhanced light source 5 may be visible light, may also be invisible light, may also be white light, and may also be colored light. The invention does not limit the kind, color, wavelength and frequency of the enhanced light source 5, so that the simple change of the kind, color, wavelength and frequency of the enhanced light source 5 on the basis of the invention should fall into the protection scope of the invention.

Regarding the arrangement of the enhancement light source 5: the purpose of the enhancing light source 5 is to illuminate the entire transparent tabletop 3 with as much light as possible from the enhancing light source 5 and to minimize light pollution to the environment outside the tabletop 3, i.e. the light from the enhancing light source 5 should be confined to the inside of the transparent tabletop 3 as much as possible. Of course, if the enhancement light source 5 is invisible light, the problem of light pollution by the enhancement light source 5 is not considered. In the following, taking the enhancement light source 5 as the visible light as an example, two embodiments of the arrangement of the enhancement light source 5 are provided.

The enhanced light source 5 is provided with the first embodiment: as shown in figure 2, the enhanced light source 5 is arranged at the side of the table top 3 and emits light which is irradiated into the interior of the table top 3 from the side of the table top 3 and is transmitted along the interior of the table top 3. Further, the table top 3 is a thin plate, and includes a table top surface 305, a table top bottom surface 307, a first side 302, a second side 303, a third side 301, and a fourth side 304, the horizontal cross section of the thin plate is a rounded rectangle, the enhanced light source 5 is an elongated light source, the elongated enhanced light source 5 is disposed at the first side 302 of the table top 3 and is closely attached to the first side 302 of the table top 3, the length direction of the elongated enhanced light source is parallel to the first side 302 of the table top 3, and light emitted by the elongated enhanced light source enters the interior of the table top 3 perpendicular to the first side 302 of the table top 3. The embodiment of the enhanced light source 5 is considered by the inventor to be relatively better and is also a preferred embodiment of the present invention, because the enhanced light source 5 is arranged in a manner that the inside of the tabletop 3 can be ensured to be illuminated, and the size of the elongated enhanced light source 5 can be controlled to ensure that all the light emitted by the enhanced light source 5 enters the inside of the tabletop 3, so that the light pollution to the environment outside the tabletop 3 is reduced, and the background light interference caused by the light pollution during the image processing is also reduced. In addition, the enhanced light source 5 and the table top 3 can be arranged in a split manner, as shown in fig. 2 and 3, the elongated enhanced light source 5 can be fixed on the side edge of the first transverse portion 403 of the table top bearing frame 4, and the table top 3 is fixed on the upper surface of the table top bearing frame 4 in a gluing manner, so that the production process difficulty and cost can be reduced. Furthermore, the second side 303, the third side 301, and the fourth side 304 of the table top 3 are all made opaque, so that light inside the table top 3 cannot be emitted through the second side 303, the third side 301, and the fourth side 304, thereby further reducing light pollution to the environment outside the table top 3.

Enhanced light source setup embodiment two: the enhanced light source is arranged inside the table top 3, and the light emitted by the enhanced light source is spread inside the table top 3 along the horizontal direction. This arrangement of the enhanced light source requires the enhanced light source to be embedded into the tabletop 3 during the production of the tabletop 3, which is relatively difficult and costly.

If the enhancement light source is invisible light, such as infrared light, reference may also be made to the above two embodiments of the arrangement of enhancement light sources.

The image acquisition module is arranged below the desktop 3, can shoot and acquire the image of the area of the lower surface of the desktop 3, and can analyze and process the acquired image by the processing control module; the image acquisition module can be a common camera, a special CMOS photosensitive module or other photosensitive components capable of realizing image acquisition. It should be noted that the type of the light sensing module should match the type of the enhanced light source 5, for example, if the light emitted by the enhanced light source 5 is visible light, the image capturing module should at least be capable of sensing and capturing visible light, and if the light emitted by the enhanced light source 5 is infrared light, the image capturing module should at least be capable of sensing and capturing infrared light. The invention does not limit the specific type of the image acquisition module and the adopted image acquisition technology, and the simple change of the type of the image acquisition module and the adopted image acquisition technology on the basis of the invention is all within the protection scope of the invention.

The invention relates to an enhanced light source 5 and an image acquisition module, wherein the enhanced light source 5 is an infrared light source, and the image acquisition module is an infrared camera module. The wavelength of the infrared light source can be selected from common 850nm, 910nm, 940nm, 980nm and the like, and the sampling wavelength of the infrared camera module is matched with the wavelength of the infrared light source. For example, the light emitted by the infrared light source is infrared light of 850nm, the infrared camera module should be capable of photosensitive collecting infrared light of at least 850nm and wavelengths near the infrared light source, and if the interference of the ambient light source is to be filtered, the infrared camera module may also be a narrow-band infrared camera of 850nm, that is, the infrared camera module only collects infrared light of a waveband near 850nm, and is non-photosensitive to visible light and other light of wavelengths far from 850 nm. Similarly, if the infrared light source is an infrared light source with other wavelengths, the infrared camera module may employ a narrow-band infrared camera with a corresponding wavelength in order to filter the interference of the ambient light source. The enhancement light source 5 adopts infrared light, which has the advantages that the infrared light is invisible to naked eyes but can be collected and captured by an infrared camera, so that the requirements of the invention on the enhancement light source can be met, and the external environment cannot be polluted by light. The narrow-band infrared camera has the advantages that the narrow-band infrared camera is not interfered by other light sources, the accuracy of bright spot identification can be improved, and the identification difficulty is reduced. It should be noted that the above conclusions about the infrared light source and the infrared camera module have been verified in experimental tests of the inventor.

In the invention, the image acquisition module can be arranged on the supporting part, can be hung below the tabletop 3, and can be arranged below the tabletop 3 in a split manner. Preferably, as shown in fig. 1, 2 and 3, the image capturing module may be a camera 2 mounted at the lower end of a support frame 7 of the support portion, and the shooting direction of the camera 2 faces to the area of the lower surface of the tabletop 3. The specific installation height and installation position of the image acquisition module need to be set according to the actual image sampling requirement and the parameters of the image acquisition module, such as focal length, resolution, aperture and the like. It is necessary to ensure that the image capturing module can capture an upward-looking image of the area where the desktop 3 is located, which is clear enough and is not exposed excessively, after being installed and debugged, and the set operable area 306 on the desktop 3 should be completely present in the captured image frame.

Processing control Module implementation

The processing control module at least has the capability of image processing and analysis, can analyze and process the image acquired by the image acquisition module and can transmit a corresponding result to the intelligent terminal needing interaction through the communication module. The processing control module can be a general-purpose chip, such as a Central Processing Unit (CPU), a microprocessor MCU and the like, or a special image processing chip. The invention is not limited to the type of the process control module, and the simple change of the type of the process control module based on the invention is all within the protection scope of the invention.

Storage module implementation

The storage module may be a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, or the like. The storage module may be a memory independent from the process control module, or may be integrated on the same chip with the process control module. The invention does not limit the type of the memory module, and the type, the packaging mode and the integration mode of the memory module are simply changed on the basis of the invention, which all fall into the protection scope of the invention.

Communication module implementation

The communication module is connected with the processing control module and is used for enabling the intelligent transparent office desk to be in interactive communication with the intelligent terminal. The communication module can be a wireless communication module, such as a bluetooth module, a WiFi module, and the like, and can also be a wired communication module. The communication module can be an independent module independent from the processing control module, and can also be integrated with the processing control module on the same chip. The invention is not limited to the specific type of the communication module and the communication technology adopted by the communication module. The invention is not limited to the above embodiments, and the communication module may be a module with a communication module.

Power supply Module implementation

The power supply module is used for providing power. The power supply module can be a battery or a battery module with electricity storage capacity, and can also supply power to the intelligent transparent office table through an external power supply.

Keyboard pattern implementation mode

The keyboard pattern 6 of the present invention is disposed in the operable area 306 of the desktop 3, and the keyboard pattern 6 may be disposed on the desktop upper surface 305, the desktop lower surface 307, or embedded inside the desktop 3 during the production process. The keyboard pattern 6 is preferably a keyboard line frame pattern, i.e. only the border of each key and the corresponding identifier (e.g. letter, number, symbol, etc.) of the key appear in the pattern, and the area of each key pattern except the key identifier is not filled and still remains transparent. The keyboard pattern 6 may be set by printing, etching, engraving, laser engraving, or the like when the desktop 3 is produced, or may be attached to the operable area 306 of the desktop 3 by using a transparent sticker with a keyboard pattern, or may be attached to the operable area 306 of the desktop 3 by using a transferable sticker with a keyboard pattern, and then the base material of the sticker is torn off, leaving the keyboard line frame pattern transferred to the desktop 3. In addition, it should be noted that the keyboard pattern according to the present invention may be a virtually projected keyboard pattern, that is, the keyboard pattern 6 is projected in the operable area 306 on the desktop 3, besides the above-mentioned physically visible keyboard pattern 6.

Interactive implementation mode for keyboard input

And carrying out coordinate coding on the position area corresponding to each key pattern on the keyboard pattern 6, mapping the position area with the key instruction of each key one by one, and storing the position area in the storage module. The processing control module continuously monitors the image acquired by the image acquisition module for status information of valid bright spots appearing in the operable area 306.

When a user carries out keyboard input operation, a certain key pattern on the keyboard pattern 6 of the desktop 3 is clicked by a finger, bright spots are generated at the position of the key pattern in an image collected by the image collection module, the processing control module determines that effective bright spots appear on the key pattern of the keyboard pattern 6 through coordinate code matching, the effective bright spots disappear within a time range which is less than or equal to a typing time threshold value after the effective bright spots appear, a key instruction corresponding to the key pattern is considered to be triggered, and the processing control module transmits the key instruction to the intelligent terminal through the communication module, namely, one-time keyboard input interaction is realized.

It should be noted that the typing time threshold is selected and adjusted according to the actual required key input feedback speed and sensitivity, and the present invention is not limited thereto. Preferably, the typing time threshold is 100 milliseconds.

Mouse and touch gesture interactive implementation mode

And performing mouse and touch gesture interactive operation on the desktop 3, wherein the operation logic can refer to the gesture operation of the notebook computer touch pad. Common touch gestures, that is, touch operation events in the present invention, are classified according to the number of fingers participating in touch operation, the number of clicks, whether to slide, whether to touch for a long time, and mainly include four categories: a click event, a click slide event, a slide touch event, a long touch event, wherein,

the click event includes: single-finger single click, double-finger single click, three-finger single click, and four-finger single click; two continuous clicks are performed by a single finger, two continuous clicks are performed by two fingers, two continuous clicks are performed by three fingers, and two continuous clicks are performed by four fingers; three continuous clicks are performed by a single finger, three continuous clicks are performed by two fingers, three continuous clicks are performed by three fingers, and three continuous clicks are performed by four fingers; each click event comprises the information of the number of fingers participating in clicking and the information of the number of continuous clicks, and also comprises the position and the time sequence information of each click of each finger;

the click swipe event includes: the single finger slides after two continuous clicks, the double finger slides after two continuous clicks, the three finger slides after two continuous clicks, and the four finger slides after two continuous clicks; each click sliding event comprises the information of the number of fingers participating in click sliding and the information of the number of continuous clicks, and also comprises the information of the position and the time sequence of each click of each finger, the initial position of each finger sliding, the displacement and the time sequence of each finger sliding;

the sliding touch event includes: single-finger sliding, double-finger same-direction sliding, double-finger opposite-direction sliding, double-finger reverse sliding, three-finger same-direction sliding and four-finger same-direction sliding; each sliding touch event comprises the information of the number of fingers participating in sliding touch, and also comprises the information of the initial position, the direction, the displacement and the time sequence of the sliding of each finger;

the long touch event comprises: single-finger long touch, double-finger long touch, three-finger long touch, and four-finger long touch; each long touch event comprises the information of the number of fingers participating in long touch, and also comprises the position and the time sequence information of the long touch of each finger;

common mouse and touch gesture control commands include: clicking, double clicking, right clicking, dragging, cursor moving, page up scrolling, page down scrolling, middle key pressing, middle key dragging, picture enlarging, picture reducing, switching to the previous page, switching to the next page, switching to a multitask view, switching to a desktop view, switching to the previous application, switching to the next application, turning up the volume, turning down the volume, switching to the previous song, switching to the next song, advancing the play progress bar, backing the play progress bar, quickly calling out a search box, quickly screen capturing and full screen translating;

and performing logic definition on the touch operation events on the desktop 3 to obtain a corresponding relation set of various touch operation events and control instructions, wherein the corresponding relation set is called a preset operation logic instruction set. Storing the preset operation logic instruction set in the storage module;

when the enhanced light source 5 is turned on, if a finger contacts the upper surface of the desktop 3, the skin of the finger in the contact area is illuminated, a significant bright spot is formed in an image collected by the image collection module from the lower part of the desktop 3, different touch operation actions correspond to different bright spot state information, the state information of the bright spot comprises the number of the bright spots and corresponding time sequence data, the position of each bright spot and corresponding time sequence data, the state information of the bright spot and the touch operation action performed on the desktop 3 are preset correspondingly to obtain a touch operation event set mapped by the state information of the bright spot, and the touch operation event set and the mapping relation are stored in the storage module;

when a user performs mouse or touch gesture interactive operation on the desktop 3, the image acquisition module can acquire single or multiple bright spots generated by a single finger or multiple fingers in the operable area 306 of the desktop 3 and moving data of the bright spots through continuous sampling, the processing control module analyzes and processes the data of the bright spots and determines the data as effective bright spots, determines which touch operation event the ongoing touch operation belongs to through the mapping relation between the touch operation event and the state information of the effective bright spots, determines a control instruction corresponding to the touch operation event according to the preset operation logic instruction set, transmits the control instruction to the controlled intelligent terminal through the communication module, and performs corresponding response after receiving the control instruction, namely, the mouse or touch gesture interaction is realized.

Position coordinate implementation of bright spot

The bright spot is a pattern composed of a plurality of pixel points in the image acquired by the image acquisition module, and the pattern has both size and shape, but a coordinate point is required to describe the specific position of the bright spot with both size and shape in the actual algorithm development. In many vision recognition algorithms, one common approach is to select the coordinates of the pattern's centroid to refer to where the pattern is currently located, since the pattern's centroid is usually considered to be the center location of the pattern. By taking this method as a reference, the present invention also uses the position coordinates of the center of mass of the bright spot to describe the position of the bright spot. Regarding the method for calculating the centroid of the pattern or image, since there are many mature algorithms, which belong to the prior art, the present invention is not described in detail.

Implementation of effective hot spot determination criterion

According to the characteristics of the shape and the size of the bright spots generated by the contact of the fingers of the ordinary people and the upper surface of the desktop 3, the invention provides an implementation mode for judging whether the bright spots are effective bright spots, which comprises the following specific steps:

given two radii R1 and R2, the hot spot is determined to be a valid hot spot when the size of the hot spot cannot be completely surrounded by a small circle of radius R1, while it can be completely surrounded by a large circle of radius R2. Preferably, the radius R1 of the small circle is 2mm, and the radius R2 of the large circle is 10 mm.

In practical application, if the bright spot continuously moves, preferably, a dynamic target tracking algorithm may be used to track the position of the bright spot, and it is not necessary to perform effective bright spot determination on each sampling frame of the continuously moving bright spot, so that the time overhead of processing and analyzing by the processing control module may be saved, the feedback speed is increased, and the delay is reduced. The algorithm for tracking the dynamic target is a mature prior art in the field of image recognition and dynamic target tracking, and a plurality of relatively efficient algorithms are available, which are not described herein again.

Wireless charging implementation

Preferably, the invention further comprises a wireless charging module, the wireless charging module comprises a wireless charging output coil 8, and the wireless charging output coil 8 is arranged on the lower surface of the desktop 3 and can be adhered to the lower surface 307 of the desktop in an adhesive manner. Because the desktop 3 is transparent, the wireless charging output coil 8 arranged on the lower surface 307 of the desktop can be directly seen through the desktop 3, so that electronic products with a wireless charging function, such as mobile phones, tablet computers, watches, earphones, electronic writing pens and the like, can be conveniently placed on the upper surface of the desktop right above the wireless charging output coil 8 for wireless charging. Preferably, the wireless charging output coil 8 is connected with the power supply module through the internal wiring of the desktop force-bearing frame 4.

Projection and projection picture interaction implementation mode

Due to the high light transmission and low diffuse reflection of common transparent materials, the projection of the picture on the transparent tabletop 3 is realized, and the problem exists that most of the light projected on the transparent tabletop 3 directly penetrates through the tabletop 3 and is difficult to image on the transparent tabletop 3, so that the projection effect is poor, and the picture is unclear.

In order to achieve a good projection effect on the transparent desktop 3, the invention further comprises a projection module 13 and a transparent reflective film, wherein the projection module 13 is arranged below the desktop 3, the transparent reflective film is arranged on the desktop 3, and the projection module 13 can project a multimedia picture on the transparent reflective film of the desktop 3. As shown in fig. 2 and 4, the projection module 13 includes a projection lens 1301, which is installed at the lower end of the supporting frame 7, the projection direction of which is toward the area where the lower surface of the tabletop 3 is located, and the area where the picture projected onto the transparent reflective film is located is referred to as a projection imaging area 308.

The transparent reflection film can adopt the existing transparent projection film on the market, also called holographic projection film, and the transparent projection film is in a transparent or semitransparent state and has good reflection characteristic. Taking the transparent material as common glass as an example, when a projection device such as a projector is adopted to project a picture on the glass attached with the transparent reflective film, the picture is more clear and brighter than that of the picture directly projected on the common glass, and is relatively close to the effect of screen display.

The transparent reflective film may be disposed on the upper surface of the table top 3 or on the lower surface of the table top 3. The transparent reflective film can be arranged in a mode of film pasting or directly plated on the tabletop 3 by adopting a film plating process.

The table top 3 becomes a touch panel-like panel having both touch interaction capability and screen display function by means of the projection module 13 and the transparent reflective film. If the multimedia picture source projected by the projection module 13 is an interactive picture, by defining the touch interaction logic in the projection imaging area 308, the touch interaction operation with the projected picture can be realized in the projection imaging area 308, which is similar to the operation of a touch mobile phone, a touch tablet computer, and a notebook computer with a touch screen function. The method comprises the following specific steps:

defining the touch operation event in the projection imaging area 308 to obtain a corresponding relation set of the touch operation event in the projection imaging area 308 and a control instruction for the projected multimedia picture, wherein the corresponding relation set is called a preset projection interaction logic instruction set; the processing control module monitors the touch operation event occurring in the projection imaging area 308 by monitoring the state information of the effective bright spots in the projection imaging area 308, matches the touch operation event with the control instruction in the preset projection interaction logic instruction set to obtain the control instruction corresponding to the current touch operation event, and the communication module transmits the control instruction to the intelligent terminal providing the multimedia picture to realize projection interaction.

Embodiments of the indicator light

Preferably, the device further comprises a plurality of indicator lamps arranged on the supporting part. Because the desktop 3 itself does not have the display capability, the display function can be achieved only by means of the projection module 13, and the conventional keyboard is provided with indication lamps, and the number of the common keyboard indication lamps is three: caps Lock indicator, numeric keypad indicator Num Lock, and rolling Lock indicator. In order to more conveniently and simply realize the functions of the keyboard indicator lamps, the inventor thinks that the three keyboard indicator lamps can be arranged at proper positions on the supporting part because the desktop is made of transparent materials. After clicking corresponding pilot lamp in keyboard pattern 6 and opening the button, the pilot lamp that corresponds on the supporting part lights promptly, and the user can see through transparent desktop 3 and observe the pilot lamp that lights. Preferably, as shown in fig. 2 and fig. 3, three keyboard indicator lamps are disposed at an end of the second vertical portion 402 of the desktop force-bearing frame 4, wherein the first indicator lamp 406 is a Caps Lock indicator lamp, the second indicator lamp 405 is a numeric keypad indicator lamp Num Lock, and the third indicator lamp 407 is a rolling Lock indicator lamp Scroll Lock.

Besides the three keyboard indicator lamps, other indicator lamps such as a power on/off indicator lamp, a keyboard working indicator lamp, a mouse and a touch working indicator lamp can be arranged on the upper surface of the second vertical part 402 of the desktop force bearing frame 4 of the supporting part, the power on/off indicator lamp is used for prompting whether the power supply of the intelligent transparent office desk is started, the keyboard working indicator lamp is used for prompting whether the keyboard function is started, and the mouse and the touch working indicator lamp are used for prompting whether the mouse and the touch function are started.

Solid key implementation mode

Preferably, the invention also comprises a plurality of entity keys which are arranged on the desktop force bearing frame 4. The solid keys are mainly used for controlling the power supply of the intelligent transparent office table, the keyboard input function, the mouse and touch interaction function, and the switch of the projection module 13, as shown in fig. 1, fig. 2, and fig. 3, preferably, the solid keys include a first solid key 9, a second solid key 10, a third solid key 11, and a fourth solid key 12, which are all disposed on the side edge of the third vertical portion 404 of the table top bearing frame 4, the first solid key 9 is used for controlling the switching of the main power supply of the intelligent transparent office table, the second solid key 10 is used for controlling the switch of the keyboard input function, the third solid key 11 is used for controlling the switching of the mouse and touch interaction function, and the fourth solid key 12 is used for controlling the switching of the projection module 13.

Power output interface implementation mode

Preferably, the invention also comprises a plurality of power output interfaces which are arranged on the desktop force-bearing frame 4. As shown in fig. 3, the power output interfaces have multiple specifications, including a common three-hole power output interface 17, a two-hole power output interface 16, and a USB power output interface 15, preferably, the power output interfaces are all disposed on the side edge of the first vertical portion 401 of the desktop force-bearing frame 4, and the power output interfaces of each specification are provided with a plurality of power output interfaces. The actual specification, size and power standard of the power output interface are determined according to the country and region where the user is located.

Claims (10)

1. An intelligent transparent office table comprises a supporting part and a table top (3), and is characterized by further comprising an enhanced light source (5), an image acquisition module, a processing control module, a storage module, a communication module and a power supply module, wherein the supporting part is used for supporting the table top (3); the desktop (3) is made of a transparent material; the enhanced light source (5) is used for illuminating the inside of the desktop (3); the image acquisition module is arranged below the desktop (3), can shoot and acquire an image of the area where the desktop (3) is located from the lower part of the desktop (3), and the acquired image can be analyzed and processed by the processing control module; the storage module is connected with the processing control module; the communication module is connected with the processing control module; the power supply module is used for providing power.

2. The intelligent transparent office table according to claim 1, wherein the enhanced light source (5) is arranged at the side of the table top (3), and the light emitted by the enhanced light source irradiates into the inside of the table top (3) from the side of the table top (3) and propagates along the inside of the table top (3).

3. The intelligent transparent desk of claim 1, wherein the enhanced light source (5) is an infrared light source, and the image acquisition module is a narrow-band infrared camera module corresponding to the wavelength of the infrared light source.

4. The intelligent transparent office table according to claim 2, wherein the table top (3) is in the shape of a rounded rectangle and comprises a first side (302), the enhanced light source (5) is an elongated light source and is arranged at the first side (302) of the table top (3) and has a length direction parallel to the first side (302) of the table top (3), and the light emitted by the elongated light source enters the interior of the table top (3) perpendicular to the first side (302) of the table top (3).

5. The intelligent transparent office table according to claim 1, wherein the table top (3) is made of transparent glass.

6. The intelligent transparent desk according to claim 1, wherein the image acquisition module is mounted on the support with its shooting direction facing the area of the lower surface of the desktop (3).

7. The intelligent transparent office desk of claim 1, further comprising an operable area (306), a keyboard pattern (6), wherein the operable area (306) is an effective area on the desktop (3) where interaction can be performed, and the keyboard pattern (6) is arranged in the operable area (306).

8. The intelligent transparent office table according to claim 1, further comprising a wireless charging module connected to the power supply module, wherein the wireless charging module comprises a wireless charging output coil (8), and the wireless charging output coil (8) is disposed on the lower surface of the table top (3).

9. The intelligent transparent office table according to claim 1, further comprising a projection module (13), a transparent reflective film, wherein the projection module (13) is disposed under the table top (3), the transparent reflective film is disposed on the table top (3), and the projection module (13) can project multimedia pictures on the transparent reflective film of the table top (3).

10. The intelligent transparent desk of claim 1, further comprising a plurality of indicator lights disposed on the support portion.

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