CN210515220U - Electronic skin and intelligent terminal using same - Google Patents
Electronic skin and intelligent terminal using same Download PDFInfo
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- CN210515220U CN210515220U CN201920873694.8U CN201920873694U CN210515220U CN 210515220 U CN210515220 U CN 210515220U CN 201920873694 U CN201920873694 U CN 201920873694U CN 210515220 U CN210515220 U CN 210515220U
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Abstract
The utility model discloses an electron skin and use its intelligent terminal, including skin body and sensor, the sensor with the skin body combines together, the skin body adopts elastic material to make, the skin body includes upper surface and lower surface, the upper surface sets up unevenness texture. The utility model discloses an electronic skin can accurately distinguish the sense of touch type that the sense of touch intervenes and corresponds.
Description
Technical Field
The utility model relates to a signal sensing technical field, concretely relates to electron skin and use its intelligent terminal.
Background
Electronic skin is a system that simulates real skin based on electrical signals with the perception of external pressure stimuli. The electronic skin can be attached to the surface of the intelligent device like skin, and the intelligent device can sense the pressure applied from the outside. At present, the electronic skin has a lot of application requirements in the field of electronic terminals. For example, the electronic toy is applied to the electronic toy, so that the electronic toy can sense external tactile information; and if the electronic desk is applied to an electronic desk, the writing information of a user on the surface of the desk can be collected. However, the current electronic skin can only sense the tactile intervention, and cannot judge and distinguish the tactile type corresponding to the tactile intervention, for example, the current electronic skin cannot distinguish whether the user touches or beats the electronic toy, or whether the tactile intervention applied by the user on the electronic desk is pointed writing or arm rubbing, which greatly limits the application of the electronic skin.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electron skin and use its intelligent terminal aims at solving the unable problem that produces different sense of touch signals to exerting the sense of touch intervention of the different grade type above that of electron skin among the prior art.
The utility model provides an electronic skin, including skin body and sensor, the sensor with the skin body combines together, the skin body adopts elastic material to make, the skin body includes upper surface and lower surface, the upper surface sets up unevenness texture.
Further, the texture comprises a convex part and/or a concave part, the convex part is convex from the upper surface to the outer side of the skin body, and the concave part is concave from the upper surface to the inner part of the skin body, wherein the upper surface is used as a reference surface.
Further, the sensor is arranged inside the skin body or adhered to the lower surface.
Further, the type of sensor includes a piezoelectric thin film sensor.
Further, the material of the skin body comprises one or more of rubber, latex and polyethylene.
The utility model also provides an intelligent terminal, including terminal body and foretell electron skin, electron skin set up in the assigned position of terminal body.
Furthermore, the terminal body is an electronic toy, and the electronic skin is wrapped on the outer surface of the electronic toy.
Furthermore, the terminal body is an electronic desktop, and the electronic skin is laid on the upper surface of the electronic desktop.
The utility model has the advantages that:
the utility model discloses an electron skin and use its intelligent terminal, through foretell electron skin structure, set up the unevenness texture at skin body upper surface, this unevenness texture can be used for improving the sensor received and intervene produced tactile signal's difference by different grade type sense of touch, and on the texture of skin body surface was intervened in the sense of touch as the external application, the skin body transmitted to the sensor with received stress variation to be used for distinguishing the kind of sense of touch type.
Drawings
Fig. 1 is a schematic structural diagram of an electronic skin according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electronic skin according to another embodiment of the present invention.
Reference numerals:
1: a body of skin; 2: a sensor; 101: an upper surface; 102: a lower surface; 103: texture; 1031: a boss portion; 1032: a recessed portion.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the utility model discloses an electronic skin, including skin body 1 and sensor 2, sensor 2 with skin body 1 combines together, skin body 1 adopts elastic material to make, skin body 1 includes upper surface 101 and lower surface 102, upper surface 101 sets up unevenness texture 103.
In this embodiment, the upper surface 101 and the lower surface 102 are described by taking an example of covering the electronic toy body with the electronic skin, where the upper surface 101 of the electronic skin is a surface that can be touched by a user, and the lower surface 102 is a surface close to the toy body. The skin body 1 is made of an elastic material, when a user applies tactile intervention to the upper surface 101 of the electronic skin, the elastic skin body 1 can transmit pressure generated by the tactile intervention to the sensor 2, the sensor 2 acquires tactile signals, and the uneven texture 103 arranged on the upper surface 101 is used for simulating fingerprints of human beings, so that the difference of the tactile signals generated by different types of tactile interventions and received by the sensor 2 can be improved.
For electronic toys, common haptic interventions correspond to haptic types including the following: touch, stroke, press, stroker, and scratch. For touch, the pressure with a fast impact speed and a small force is usually applied to the electronic skin in a short time. For the impact, a pressure with a fast impact speed and a large force is usually applied to the electronic skin in a short time. For pressing, it is usually a pressure with a small impact velocity acting on the electronic skin for a slightly long time. Both the stroking and the scratching, which are typically pressure sustained over a longer period of time, are distinguished in combination with the texture 103 on the electronic skin.
Specifically, for three types of tactile interventions, namely touch, impact and press, pressure signals applied to the skin surface in the vertical direction are reflected in the tactile signals, namely, the tactile signals generated by touch have short reference duration (for example, less than 1s), high reference frequency band (for example, 5Hz to 15Hz) and low reference signal peak; the reference duration of the touch signal generated by striking is short (such as about 0.5 s), the reference frequency band is high (such as 5 Hz-15 Hz), and the peak value of the reference signal is high; the tactile signal generated by the pressing has a slightly longer reference duration (e.g., greater than 1s) and a lower reference frequency band (e.g., 0.2 Hz-2 Hz). The texture 103 on the e-skin can increase the sensitivity of the e-skin to externally applied touch interventions, thereby increasing the difference in the tactile signals received by the sensor 2.
Specifically, for both stroking and scratching tactile interventions, a combination of vertical and horizontal pressure signals is applied to the skin surface. It is difficult for the sensor 2 to accurately distinguish between these two types of tactile intervention because of the small difference in force between the stroking and scratching in the vertical direction. It is therefore necessary to sense the horizontal force in combination with the texture 103 on the electronic skin to distinguish between stroking and scratching. The texture 103 on the e-skin is an uneven texture, and the cross-sectional triangular texture 103 in fig. 1 is taken as an example to illustrate the differentiated stroking and scratching signals. Generation of stroking signal: when the user touches the texture 103 with a hand, for example, the user touches the texture 103 from left to right, the user's hand touches the upper end of the texture 103, and the concave portion of the texture 103 may not be touched. When the upper end of texture 103 is touched to the user's hand, the top of triangle-shaped texture 103 and the upper portion of the left surface of triangle-shaped texture 103 can be contacted to the user's hand, because electron skin has elasticity, texture 103 can produce certain elastic deformation, and the upper end of triangle-shaped texture 103 produces certain bending to the right, and then produces the stress of vertical direction, and skin body 1 transmits this stress for piezoelectric film. When the user's hand leaves the current stroking area along with the progression of the stroking action, the external pressure disappears, and the texture 103 which is elastically deformed recovers the original shape. When the user touches the surface of the electronic skin, the upper end portions of the texture 103 are touched sequentially, and the tactile signal received by the piezoelectric film is a continuous signal and is an alternating signal with a regular waveform, such as a triangular wave, a sawtooth wave, a sine wave, and the like. The generation of the scratching signal is the same as the generation of the stroking signal, and the process is not described herein. The touch is generally performed by finger abdomen or palm, the strength is soft, and the contact area between the hand and the surface of the electronic skin is large; scratching generally involves applying tactile intervention to the finger tip with greater force and less contact area between the finger tip and the surface of the electronic skin. The difference between the stroking and scratching is reflected in the tactile signal as the effective value of the stroking signal is closer to the average value and the effective value of the scratching signal is further from the average value. And calculating the signal in one period by adopting a preset formula according to the effective value and the average value.
The definition of valid values is:
the mean value is defined as:
where T is the time of one cycle, T is the time, and i is the alternating current.
Thus, different types of haptic interventions produce different haptic signals that can be interpreted to distinguish the haptic type corresponding to the haptic intervention applied to the upper surface 101 of the electronic skin.
In another embodiment of the present invention, the electronic skin is covered on the electronic desktop, and the common haptic intervention corresponds to a haptic type mainly writing. When a user writes on the electronic skin surface, a finger or a pen point can generate a written tactile signal, and an elbow or a palm and the like can also generate a friction tactile signal. In the use process of the electronic desktop, only the written tactile signals need to be collected, and other tactile signals such as friction and the like do not need to be collected. It is therefore desirable to extract the written haptic signal from the received haptic signal through the electronic skin and discard other non-written haptic signals (e.g., frictional haptic signals). When the electronic skin distinguishes the writing and friction touch signals, the principle is similar to that of the scratch and stroking touch signals, the effective value and the average value of the touch signals generated by writing are far away, namely the corresponding reference ratio is larger; while the effective value of the haptic signal generated by friction is closer to the average value, i.e. the corresponding reference ratio value is smaller. Therefore, when the electronic skin is applied to the electronic desk, the electronic skin can analyze the touch signal, so that the corresponding touch signal written in the touch signal is identified.
When the above-mentioned electronic skin is applied to a specific terminal device, the sensor may be further connected to a controller, and the kind of the tactile type may be recognized by the controller. The controller adopts the existing controllers on the market, including but not limited to personal computers, PLC controllers, industrial personal computers and the like.
The utility model discloses electron skin, through foretell electron skin structure, set up unevenness texture 103 at skin body 1 upper surface 101, this unevenness texture 103 can be used for improving the difference that sensor 2 received intervenes produced tactile signal by different grade type sense of touch, and on the texture of applying the sense of touch intervention on skin body surface as the external world, the skin body transmits the stress variation received to the sensor to be used for distinguishing the kind of sense of touch type.
Further, referring to fig. 1 and 2, the texture 103 includes a convex portion 1031 and/or a concave portion 1032, the convex portion 1031 protrudes from the upper surface 101 to the outside of the skin body 1 with the upper surface 101 as a reference surface, and the concave portion 1032 is recessed from the upper surface 101 to the inside of the skin body 1.
In this embodiment, the upper surface 101 is a smooth surface, the texture 103 is processed on the upper surface 101, and may be a protruding portion 1031 protruding from the upper surface 101, for example, a protruding portion 1031 processed in a granular shape, a linear shape, a wavy shape, or the like is processed on the upper surface 101, or may be a recessed portion 1032 recessed into the upper surface 101, for example, a recessed portion 1032 carved in a granular shape, a linear shape, a wavy shape, or the like on the upper surface 101, or may include both the protruding portion 1031 and the recessed portion 1032. Wherein, the shapes of the convex part 1031 and the concave part 1032 are not specifically limited herein, and can be set according to specific use requirements and processing conditions. The depth of the texture 103 (i.e. the height of the protrusion 1031 and/or the recess 1032), the present invention is not limited herein, and when the present invention is applied specifically, the depth of the texture 103 is related to the softness and elasticity of the elastic material adopted by the skin body 1, generally speaking, for the skin body 1 made of the material with good softness and large elasticity, the depth of the texture 103 can be set to be smaller, for the skin body 1 made of the material with poor softness and small elasticity, the depth of the texture 103 can be set to be larger, specifically, the proper material of the skin body 1 can be selected according to the application scenario, and the proper depth of the texture 103 can be selected. In addition, texture 103's density (the number of texture 103 in the appointed distance promptly), the utility model discloses do not specifically restrict here yet, when specifically applying, can be according to skin body 1 material, texture 103's degree of depth, the adaptability adjustment is made to texture 103's shape for under the specific application scene, sensor 2 can be to touching and scratching make accurate differentiation.
Further, the sensor 2 is disposed inside the skin body 1 or adhered to the lower surface 102.
In this embodiment, the sensor 2 may be disposed inside the skin body 1, i.e. sandwiched between two layers of the skin body 1, or may be directly and tightly adhered to the lower surface 102. In specific use, taking the electronic skin covered on the toy body as an example, the sensor 2 can be integrally arranged in the inner part or the lower surface 102 of the skin body 1; in different electronic toy parts, electronic desk surface areas or different sensing targets, a plurality of independent piezoelectric films can be arranged in the electronic skins of different parts to independently sense signals. Correspondingly, the shape, density, depth, etc. of the surface texture 103 of the skin main body 1 corresponding to each individual piezoelectric film may be set individually according to a specific sensing target.
Further, the type of sensor 2 described above includes a piezoelectric film sensor.
In this embodiment, the sensor 2 is a piezoelectric thin film sensor. The piezoelectric film is a dynamic strain sensor 2, and is very suitable for signal detection applied to the surface of human skin or implanted in the human body. When the piezoelectric film is stretched or bent, an electrical signal is generated between the upper and lower electrodes of the film and is proportional to the deformation of the film due to stretching or bending. When a longitudinal force is applied to the piezoelectric film in a small area, a large stress is generated in the transverse direction of the piezoelectric film; and if the same amount of longitudinal force is applied to the pressure film over a large area, the stress generated in the transverse direction of the piezoelectric film is much smaller. Therefore, piezoelectric films are very sensitive to dynamic stresses and cannot be used to detect static stresses. Based on the characteristics of the piezoelectric film and the force application characteristics of touch, beating, pressing, stroking, scratching and writing, the tactile signals received by the piezoelectric film can be obviously distinguished for different types of tactile interventions.
Further, the material of the skin body 1 includes one or more of rubber, latex, and polyethylene.
The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. The rubber includes natural rubber extracted from rubber trees and synthetic rubber prepared by polymerizing various monomers. The rubber has various types, such as silica gel, the main component of which is silicon dioxide, and has the advantages of stable chemical property, good thermal stability, high mechanical strength and good flexibility.
The latex comprises natural latex, synthetic latex and artificial latex, wherein the natural latex contains 27 to 41.3 weight percent of rubber component. The synthetic latex is prepared by emulsion polymerization, and the artificial latex is a rubber latex of emulsion polymerization. The latex has good flexibility and elasticity, can rebound rapidly after being pressed, and is suitable for manufacturing the skin body 1.
Polyethylene is a thermoplastic resin prepared by polymerizing ethylene, has good chemical stability, is sensitive to environmental stress, has good flexibility and elasticity, and is suitable for manufacturing the skin body 1.
All the other the embodiment of the utility model provides an in not exhale, but accord with the material that above-mentioned preparation skin body 1 required, technical personnel in the field all can be based on the utility model discloses a utility model theory chooses for use, all includes with the same reason the utility model discloses an in the patent protection range.
The embodiment of the utility model provides a do not specifically prescribe a limit to the thickness of skin body 1, can set up according to specific in service behavior, ensure that sensor 2 can sense touch signal.
The embodiment of the utility model provides a still provide an intelligent terminal, including terminal body and foretell electron skin, electron skin set up in the assigned position of terminal body.
In one embodiment, the terminal body is an electronic toy, and the electronic skin is wrapped on an outer surface of the electronic toy. The outer surface of the electronic toy can be partially wrapped with the electronic skin (for example, only an arm wraps the electronic skin), or can be completely wrapped with the electronic skin.
In one embodiment, the terminal body is an electronic desktop, and an electronic skin is laid on an upper surface of the electronic desktop. The electronic skin can be laid on the upper surface of the electronic desktop completely, or can be laid on partial area of the upper surface of the electronic desktop.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (8)
1. The electronic skin is characterized by comprising a skin body and a sensor, wherein the sensor is combined with the skin body, the skin body is made of elastic materials and comprises an upper surface and a lower surface, and uneven textures are arranged on the upper surface.
2. The electronic skin of claim 1, wherein the texture comprises a convex portion and/or a concave portion, the convex portion is convex from the upper surface to the outside of the skin body, and the concave portion is concave from the upper surface to the inside of the skin body, with the upper surface as a reference surface.
3. The electronic skin of claim 1, wherein the sensor is disposed within the skin body or adhered to the lower surface.
4. The electronic skin of claim 1, wherein the type of sensor comprises a piezoelectric thin film sensor.
5. The electronic skin of claim 1, wherein the material of the skin body comprises one of rubber, latex, and polyethylene.
6. An intelligent terminal, characterized by comprising a terminal body and the electronic skin according to any one of claims 1-5, wherein the electronic skin is arranged at a designated position of the terminal body.
7. The intelligent terminal according to claim 6, wherein the terminal body is an electronic toy, and the electronic skin is wrapped on an outer surface of the electronic toy.
8. The intelligent terminal according to claim 6, wherein the terminal body is an electronic desktop, and the electronic skin is laid on the upper surface of the electronic desktop.
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| CN201920873694.8U CN210515220U (en) | 2019-06-10 | 2019-06-10 | Electronic skin and intelligent terminal using same |
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| CN201920873694.8U CN210515220U (en) | 2019-06-10 | 2019-06-10 | Electronic skin and intelligent terminal using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110362196A (en) * | 2019-06-10 | 2019-10-22 | 杨松 | Electronic skin, intelligent terminal and tactile intervention signal processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110362196A (en) * | 2019-06-10 | 2019-10-22 | 杨松 | Electronic skin, intelligent terminal and tactile intervention signal processing method |
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Effective date of registration: 20231130 Address after: 215000 401, room 17, 158 Jinfeng Road, hi tech Zone, Suzhou, Jiangsu. Patentee after: IOASONIC (SU ZHOU) TECHNOLOGIES Co.,Ltd. Address before: 510000 room 2107, new Yuexiu District Road, Yuexiu District temple, Guangzhou, Guangdong. Patentee before: Yang Song |