TWI719381B - Motion detection device and smart clothe having the same - Google Patents

Abstract

A motion detection device includes an elastic film, a first strain detector, a second strain detector, and a third strain detector. The elastic film is flexible and waterproof and includes an elastic film body, a first extending portion, a second extending portion, and a third extending portion, which outward extend from the elastic film body along a first direction, a second direction, and a third direction, respectively. An angle between the second direction and the third direction is an acute angle. The first strain detector is disposed on the first extending portion to measure a strain along the first direction. The second strain detector is disposed on the second extending portion to measure a strain along the second direction. The third strain detector is disposed on the third extending portion to measure a strain along the third direction.

Description

Motion sensing device and wisdom with motion sensing device Type clothing

The invention relates to a motion sensing device and smart clothing with the motion sensing device.

In recent years, with the development of wearable devices, many electronic devices have been designed to be worn, such as smart watches, wearable pedometers, smart bracelets, and so on. Furthermore, with the prevailing trend of smart products, these wearable electronic devices have also become mainstream products in the consumer market. On the other hand, as these wearable electronic devices have caused a huge response in the consumer market, products that combine electronic devices and clothing have also come out one after another. In these products that combine electronic devices and clothing, with electronic devices, the wearer's movements or postures can be recorded by electrical signals and perform more functions. Therefore, the development of functional electronic products with fabric as the main body Highly optimistic.

An embodiment of the present invention provides a motion sensing device including an elastic membrane, a first strain sensor, a second strain sensor, and a third strain sensor Detector. The elastic film is elastic and waterproof, and includes an elastic film body and a first extension portion, a second extension portion, and a third extension portion extending outward from the elastic film body along the first direction, the second direction and the third direction, respectively , Where the angle between the second direction and the third direction is an acute angle. The first strain sensor is disposed on the first extension part to measure the amount of strain in the first direction. The second strain sensor is disposed on the second extension part to measure the amount of strain in the second direction. The third strain sensor is disposed on the third extension part to measure the amount of strain in the third direction.

In some embodiments, the first strain sensor, the second strain sensor, and the third strain sensor each include a conductive silver layer and a conductive carbon layer, and the conductive carbon layer and the conductive silver layer flow from the elastic film in sequence. Arranged on.

In some embodiments, the motion sensing device further includes a conductive circuit. The conductive circuit is arranged on the elastic membrane body and the first extension part, wherein the conductive circuit has a conductive contact, and the conductive contact is arranged at the end of the first extension part relative to the elastic membrane body.

In some embodiments, the first strain sensor, the second strain sensor, and the third strain sensor each have a ground terminal connected to the conductive circuit, and the ground terminal is located on the elastic membrane body.

In some embodiments, the width of the first extension portion is greater than the width of the second extension portion and the width of the third extension portion.

In some embodiments, the angle between the second direction and the third direction is 50 to 70 degrees, and the angle between the first direction and the third direction is the same as the angle between the first direction and the second direction.

In some embodiments, the motion sensing device further includes a plurality of fourth strain sensors, which extend outward from the elastic membrane body, and the second strain sensor The sensor, the third strain sensor, and the fourth strain sensor are arranged to be line-symmetrically distributed.

An embodiment of the present invention provides a smart apparel including a apparel body, a motion sensing device, and a controller. The motion sensing device is arranged on the clothing body, wherein the first extension part covers the shoulder line of the clothing body, the second extension part covers the front shoulder area of the clothing body, and the third extension part covers the back shoulder area of the clothing body. The controller is electrically connected to the first strain sensor, the second strain sensor, and the third strain sensor.

In some embodiments, the controller includes a transmitter for outputting the sensing results of the first strain sensor, the second strain sensor, and the third strain sensor through wireless communication.

In some embodiments, the motion sensing device further includes an alignment pattern. The alignment pattern is located at the center point of the elastic membrane body, and the alignment pattern overlaps with the rotating muscle block of the garment body.

100, 300‧‧‧Motion sensing device

108‧‧‧Registration pattern

110‧‧‧Elastic film

112‧‧‧Elastic film body

114‧‧‧First Extension

116‧‧‧Second Extension

118‧‧‧The third extension

119A, 119B, 119C, 119D‧‧‧ Fourth extension

120‧‧‧First strain sensor

122‧‧‧Conductive carbon layer

124‧‧‧Conductive silver layer

126‧‧‧Rectangle pattern

130‧‧‧Second strain sensor

140‧‧‧Third strain sensor

150‧‧‧Conductive circuit

152‧‧‧Conductive contact

160A, 160B, 160C, 160D‧‧‧Fourth strain sensor

200‧‧‧Smart Clothing

210‧‧‧Clothing Body

220‧‧‧controller

230‧‧‧Wire

240‧‧‧Right shoulder

A1‧‧‧Shoulder line block

A2‧‧‧Front shoulder block

A3‧‧‧Back shoulder block

D1‧‧‧First direction

D2‧‧‧Second direction

D3‧‧‧Third party direction

N1, N2, N3‧‧‧Ground terminal

R1, R2, R3, R4‧‧‧Range

SR‧‧‧Right shoulder block

SL‧‧‧Left Shoulder Block

W1, W2, W3‧‧‧Width

θ ₂₃ , θ ₁₃ , θ ₁₂ ‧‧‧Included angle

FIG. 1 is a schematic top view of the motion sensing device according to the first embodiment of the present disclosure.

Fig. 2 shows a three-dimensional exploded view of the first strain sensor of Fig. 1;

Fig. 3 is a schematic front view of applying the motion sensing device of Fig. 1 to smart clothing.

Figure 4 is a schematic rear view of the smart clothing shown in Figure 3.

Figures 5A, 5B, and 5C are respectively schematic diagrams of the three-dimensional movement of the shoulder.

FIG. 6 is a schematic top view of the motion sensing device according to the second embodiment of the present disclosure.

Hereinafter, a plurality of embodiments of the present invention will be disclosed in drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings.

The motion sensing device of the present disclosure may include a plurality of strain sensors to measure the amount of strain in different directions. The plurality of strain sensors are, for example, Y-shaped, and the angle between the extension directions of the two strain sensors is, for example, an acute angle. Therefore, the motion sensing device can be adapted to sense the three-dimensional movement of the shoulder, and determine the shape of the shoulder according to the amount of strain. Sports status. Such a motion sensing device can be used as smart clothing after being combined with the clothing body.

Please see FIG. 1 first. FIG. 1 shows a schematic top view of the motion sensing device 100 according to the first embodiment of the present disclosure. The motion sensing device 100 includes an elastic membrane 110, a first strain sensor 120, a second strain sensor 130, a third strain sensor 140 and a conductive circuit 150.

The elastic film 110 has elasticity and water resistance, and its material may be polyurethane (TPU), for example, and includes an elastic film body 112, a first extension portion 114, a second extension portion 116 and a third extension portion 118. The elastic film body 112 may be circular, and the first extension portion 114, the second extension portion 116, and the third extension portion 118 extend from the elastic film body 112 along the first direction D1, the second direction D2, and the third direction D3, respectively. Extend outside. _{As shown in Figure 1, the angle θ 23} between the second direction D2 and the third direction D3 is an acute angle, for example, 50 to 70 degrees. Further, the angle θ may be the same between the first direction D1 and the third direction D3 ₁₃ and the angle θ between the first D1 and second direction D2 or ₁₂ different directions. Furthermore, when the included angle θ ₁₃ and the included angle θ ₁₂ are the same, the first extension 114, the second extension 116, and the third extension 118 can be line-symmetrical, that is, the upper half and the lower half of the elastic membrane 110 are It is a set of mirrored patterns. Conversely, when the included angle θ ₁₃ and the included angle θ _{12 are} different, the first extension portion 114, the second extension portion 116, and the third extension portion 118 are not linearly symmetrical.

The first strain sensor 120, the second strain sensor 130, and the third strain sensor 140 are elongated, and are respectively disposed on the first extension portion 114, the second extension portion 116, and the third extension portion 114 of the elastic membrane 110. The extension 118 is on. Specifically, the first strain sensor 120 can extend from the elastic membrane body 112 along the first direction D1 to the first extension 114; the second strain sensor 130 can extend from the elastic membrane body 112 along the second direction D2. Extend to the second extension 116; and, the third strain sensor 140 can extend from the elastic membrane body 112 along the third direction D3 to the third extension 118, so that the first strain sensor 120 and the second strain The sensor 130 and the third strain sensor 140 can respectively measure the amount of strain in the first direction D1, the second direction D2, and the third direction D3. In addition, the second strain sensor 130 and the third strain sensor 140 may be a set of mirror patterns relative to the first strain sensor 120, so as to improve the uniformity of the measured strain.

Hereinafter, only the first strain sensor 120 will be described, and the structure of the first strain sensor 120 may be similar or even the same as the second strain sensor 130 and the third strain sensor 140. Therefore, the following is about the first strain sensor 120. Strain sensor The description of 120 can correspond to other strain sensors.

Please see FIG. 2. FIG. 2 is a perspective exploded view of the first strain sensor 120 of FIG. 1. The first strain sensor 120 may include a conductive carbon layer 122 and a conductive silver layer 124, wherein the conductive carbon layer 122 and the conductive silver layer 124 may be sequentially arranged upwards by the elastic film 110 in FIG. Specifically, the conductive carbon layer 122 and the conductive silver layer 124 can be formed on the elastic film 110 in FIG. 1 by printing. Since the adhesion of the conductive carbon layer 122 to the elastic film 110 is greater than the adhesion of the conductive silver layer 124 to the elastic film 110, the conductive carbon layer 122 is printed before the conductive silver layer 124 is formed to prevent the conductive silver layer 124 from falling off. The formation of the conductive silver layer 124 on the conductive carbon layer 122 can improve the conductivity of the first strain sensor 120, thereby improving the sensing accuracy of the corresponding variable. In addition, the conductive carbon layer 122 may be a long strip pattern, and the conductive silver layer 124 may be a plurality of rectangular patterns 126 separated from each other. This configuration allows the conductive silver layer 124 to resist stretching, thereby preventing the first strain sensor The conductive structure of 120 is disconnected.

Please go back to Figure 1. The conductive circuit 150 is disposed on the elastic film body 112 and the first extension portion 114. Specifically, the conductive circuit 150 can extend from the elastic film body 112 to the end of the first extension portion 114 relative to the elastic film body 112. The conductive circuit 150 can be formed by printing conductive silver paste on the elastic film 110, or the conductive circuit 150 can also be a metal wire, such as a silver wire or a copper wire. The conductive circuit 150 has a conductive contact 152, and the conductive contact 152 is disposed at the end of the first extension portion 114 opposite to the elastic film body 112.

The conductive circuit 150 can be used to provide a reference voltage for each strain sensor. For example, the first strain sensor 120, the second strain sensor 130, and the third strain sensor 140 may each have grounding terminals N1, N2, N3, where The ground terminals N1, N2, and N3 are located on the elastic film body 112 and connected to the conductive circuit 150 to electrically connect the conductive contact 152 thereby. Therefore, the same reference voltage can be provided from the conductive contact 152 to the first strain sensor 120, the second strain sensor 130, and the third strain sensor 140. In addition, the conductive circuit 150 can be wavy, so that the conductive circuit 150 has better stability and can reduce the probability of breaking due to stretching.

Through the above configuration, since the first strain sensor 120, the second strain sensor 130, and the third strain sensor 140 can be used to measure the amount of strain in the first direction D1, the second direction D2, and the third direction D3 _{, And the included angle θ 23} between the second direction D2 and the third direction D3 is an acute angle, so the motion sensing device 100 is suitable for sensing three-dimensional movements, such as three-dimensional movements of the shoulder.

Furthermore, please see Fig. 1, Fig. 3 and Fig. 4 at the same time. Fig. 3 shows a schematic front view of applying the motion sensing device 100 of Fig. 1 to a smart apparel 200, and Fig. 4 A schematic rear view of the smart apparel 200 shown in FIG. 3 is shown. As shown in FIGS. 3 and 4, the smart apparel 200 includes a apparel body 210, a pair of motion sensing devices 100, a controller 220, and a wire 230. The clothing body 210 is an upper garment, which can be divided into different blocks according to the covered position, such as the right shoulder block SR and the left shoulder block SL, and the right shoulder block SR can be further divided into the shoulder line block A1 and the front The shoulder area A2 and the back shoulder area A3, and the left shoulder area SL is the same.

The motion sensing device 100 is disposed on the right shoulder block SR and the left shoulder block SL of the apparel main body 210, and its structure is the same as that described above. The following will only describe the motion sensing device 100 on the right shoulder block SR, and the description of the motion sensing device 100 on the right shoulder block SR can correspond to the motion on the left shoulder block SL. As a sensing device 100.

Each extension and each strain sensor of the motion sensing device 100 can cover different positions on the right shoulder block SR of the apparel body 210. The first extension 114 and the first strain sensor 120 on it can cover the shoulder line area A1 of the right shoulder block SR; the second extension 116 and the second strain sensor 130 on it can cover the right shoulder The front shoulder area A2 of the area SR; and, the third extension 118 and the third strain sensor 140 thereon can cover the rear shoulder area A3 of the right shoulder area SR.

The controller 220 and the wire 230 are disposed on the clothing body 210, where the controller 220 can be electrically connected to the first strain sensor 120, the second strain sensor 130 and the third strain sensor 140 through the wire 230. Specifically, the opposite ends of each strain sensor are respectively connected to the conductive circuit 150 and the wire 230 (that is, the ground terminals N1, N2, and N3 are connected to the conductive circuit 150, and the ground terminals N1, N2, N3 are opposite to each other. One end is the connecting wire 230). The controller 220 can also be electrically connected to the conductive contact 152 through the wire 230. Therefore, the controller 220 can provide input voltages and reference voltages for the first strain sensor 120, the second strain sensor 130, and the third strain sensor 140. In this way, the sensing result of each strain sensor of the motion sensing device 100 can be received and analyzed by the controller 220, that is, the controller 220 can know the strain amount according to the resistance change of each strain sensor. In addition, the controller 220 can include a transmitter (not shown), which can be implemented by software, hardware, firmware, or a combination of the controller 220. The transmitter can be used to wirelessly communicate the sensing results of each strain sensor Output to an external device in a way, so that the external device can receive the sensing results of each strain sensor synchronously.

With the above configuration, when the user wears the smart clothing 200, the motion sensing device 100 can analyze the amount of strain measured in various directions The three-dimensional movement of the user’s shoulder is shown. Taking Fig. 5A, Fig. 5B and Fig. 5C as examples, they are respectively schematic diagrams of the three-dimensional movement of the shoulder.

The action depicted in Figure 5A can be regarded as a "right shoulder forward lift", where the forward lift is performed within the range R1. When the user wears the smart clothing 200 of FIG. 3 and lifts the right shoulder 240 forward, the second strain sensor 130 can measure the amount of deformation caused by the compression force, and the third strain sensor 140 The deformation caused by the tension can be measured, and the deformation measured by the first strain sensor 120 can be used as the basis for correcting the judgment result, and then the forward motion of the user can be judged. On the other hand, when the user makes different degrees of forward motion within the range R1 (that is, forward motion with a different angle from the front of the user), the use can be judged based on the deformation measured by each strain gauge The extent of the forward motion of the user allows the user’s forward motion to be quantified.

The action depicted in Figure 5B can be regarded as a "right shoulder lift/uplift", in which the horizontal lift is performed within the range R2, and the upward lift is performed within the range R3. When the user wears the smart clothing 200 of FIG. 3 and lifts up/down with the right shoulder 240, the second strain sensor 130 can measure the amount of deformation caused by the compressive force, and the third strain sensor The device 140 can measure the amount of deformation caused by the tension, and then use the amount of deformation measured by the first strain sensor 120 as the basis for the correction of the judgment result to judge the user's flat lift/uplift action. Similarly, when the user performs different levels of flat lifting/uplifting in the range R2/range R3, the degree of the user's flat lifting/uplifting can be judged according to the deformation variables measured by each strain gauge , So that the user's flat/uplifting actions can be quantified.

The action drawn in Figure 5C can be regarded as "right shoulder side lift", which The middle side lift is performed in the range R4. When the user wears the smart clothing 200 of FIG. 3 and lifts the right shoulder 240 to the side, the first strain sensor 120 can measure the amount of deformation caused by the compressive force, and the second strain sensor 130 and The third strain sensor 140 can measure the amount of deformation caused by the compression force or the tension, so that the user's side lift can be judged. Similarly, when the user makes different degrees of side lift in the range R4, the degree of the user’s side lift can be determined based on the deformation measured by each strain gauge, so that the user’s side lift can be Be quantified.

The motion sensing device 100 of the present disclosure is not limited to quantifying the above-mentioned motions. In other embodiments, the deformation measured by each strain gauge can be used as a correction basis to determine and quantify other three-dimensional movements of the shoulder.

Please go back to Figure 1, Figure 3, and Figure 4. Under the aforementioned configuration, the width W1 of the first extension portion 114 can be designed to be greater than the width W2 of the second extension portion 116 and the width W3 of the third extension portion 118. For the first extension part 114 covering the shoulder line, since in the three-dimensional movement of the shoulder, the extension of the shoulder line will be smaller than that of the front shoulder and the back shoulder. Therefore, the first extension part 114 can be suitably designed to be relatively The second extension portion 116 and the third extension portion 118 are relatively wide, so as to provide a configuration space for placing components, such as the conductive circuit 150 and the conductive contact 152.

In addition, the motion sensing device 100 may further include an alignment pattern 108. The alignment pattern 108 is located at the center point of the elastic membrane body 112, and the alignment pattern 108 and the rotator muscle block of the garment body 210 (not marked in the figure, it is located in the shoulder line block A1, the front shoulder block A2 and the back The junction between the shoulder blocks A3) overlap to facilitate alignment. For example, when the motion sensing device 100 needs to be replaced, the newly replaced motion sensing device 100 can use the alignment pattern 108 to adjust the clothing body The rotator muscle block of 210 is aligned so that each extension of the motion sensing device 100 can cover the corresponding position of the clothing body 210. In addition, the motion sensing device 100 may further include a protective film (not shown) covering the elastic film 110, so as to cooperate with the elastic film 110 to connect the first strain sensor 120, the second strain sensor 130, and the third strain sensor 130 together with the elastic film 110. The strain sensor 140 and the conductive circuit 150 are covered therein.

Please refer to FIG. 6 again. FIG. 6 shows a schematic top view of the motion sensing device 300 according to the second embodiment of the present disclosure. The difference between this embodiment and the first embodiment is that the motion sensing device 300 of this embodiment further includes a plurality of fourth strain sensors 160A, 160B, 160C, and 160D, and the elastic membrane 110 also includes a plurality of second strain sensors. Four extensions 119A, 119B, 119C, 119D.

The fourth extension portions 119A-119D of the elastic membrane 110 can extend outward from the elastic membrane body 112, and the fourth extension portions 119A-119D are configured to be distributed in line symmetry. Specifically, the patterns of the fourth extension portions 119A and 119C and the patterns of the fourth extension portions 119B and 119D may be a set of patterns mirrored up and down.

The fourth strain sensors 160A-160D are elongated and extend from the elastic film body 112 to the fourth extension portions 119A-119D, respectively, and the second strain sensor 130 and the third strain sensor 140 It is arranged with the fourth strain sensors 160A-160D to be line-symmetrically distributed. Specifically, the patterns of the second strain sensor 130 and the fourth strain sensors 160B and 160D, and the patterns of the third strain sensor 140 and the fourth strain sensors 160A and 160C are presented as a set of upper and lower mirrors Shot pattern. The fourth strain sensors 160A-160D can be regarded as additional strain sensors to measure the amount of strain other than the first direction D1, the second direction D2, and the third direction D3, thereby improving the performance of the motion sensing device 300 Sensing accuracy.

In summary, the motion sensing device of the present disclosure includes an elastic membrane, a first strain sensor, a second strain sensor, and a third strain sensor. The elastic membrane includes a first extension portion, a second extension portion, and a third extension portion extending along a first direction, a second direction, and a third direction, and the first strain sensor, the second strain sensor, and the third Strain sensors are respectively arranged on the first extension part, the second extension part and the third extension part to measure the amount of strain in all directions. When the angle between the second direction and the third direction is an acute angle, the motion sensing device is suitable for sensing the three-dimensional movement of the shoulder. In other words, the movement status of the shoulder can be judged based on the amount of strain. Furthermore, since the strain is used as the sensing basis, the three-dimensional movement of the shoulder can be further quantified, so as to know the degree of shoulder movement.

Although the present invention has been disclosed in various embodiments as above, it is not intended to limit the present invention. Anyone familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be subject to the scope of the attached patent application.

100‧‧‧Motion sensing device

108‧‧‧Registration pattern

110‧‧‧Elastic film

112‧‧‧Elastic film body

114‧‧‧First Extension

116‧‧‧Second Extension

118‧‧‧The third extension

120‧‧‧First strain sensor

130‧‧‧Second strain sensor

140‧‧‧Third strain sensor

150‧‧‧Conductive circuit

152‧‧‧Conductive contact

D1‧‧‧First direction

D2‧‧‧Second direction

D3‧‧‧Third party direction

N1, N2, N3‧‧‧Ground terminal

W1, W2, W3‧‧‧Width

θ ₂₃ , θ ₁₃ , θ ₁₂ ‧‧‧Included angle

Claims (10)

A motion sensing device includes: an elastic membrane, which is elastic and waterproof, and includes an elastic membrane body and a first extension extending outward from the elastic membrane body in a first direction, a second direction, and a third direction, respectively Portion, second extension portion, and third extension portion, wherein the angle between the second direction and the third direction is an acute angle; a first strain sensor is disposed on the first extension portion to measure Measuring the amount of strain in the first direction; a second strain sensor configured on the second extension to measure the amount of strain in the second direction; and a third strain sensor configured On the third extension part, the amount of strain in the third direction is measured. The motion sensing device according to claim 1, wherein the first strain sensor, the second strain sensor, and the third strain sensor each include a conductive silver layer and a conductive carbon layer, and The conductive carbon layer is configured on the elastic film, and the conductive silver layer is configured on the conductive carbon layer. The motion sensing device according to claim 1, further comprising a conductive circuit arranged on the elastic membrane body and the first extension part, wherein the conductive circuit has conductive contacts arranged opposite to the first extension part At the end of the elastic membrane body. The motion sensing device according to claim 3, wherein the first A strain sensor, the second strain sensor and the third strain sensor each have a ground terminal connected to the conductive circuit located on the elastic membrane body. The motion sensing device according to claim 1, wherein the width of the first extension portion is greater than the width of the second extension portion and the width of the third extension portion. The motion sensing device according to claim 1, wherein the angle between the second direction and the third direction is 50 to 70 degrees, and the angle between the first direction and the third direction It is the same as the angle between the first direction and the second direction. The motion sensing device according to claim 1, further comprising a plurality of fourth strain sensors extending outward from the elastic membrane body, and the second strain sensor and the third strain sensor And the fourth strain sensor are arranged to be line-symmetrically distributed. A smart garment, comprising: a garment body; the motion sensing device according to any one of claims 1 to 7, which is arranged on the garment body, wherein the first extension part covers the shoulder line of the garment body, The second extension portion covers the front shoulder area of the apparel body, and the third extension portion covers the back shoulder area of the apparel body; and a controller, which is electrically connected to the first strain sensor, The second sense of strain And the third strain sensor. The smart apparel according to claim 8, wherein the controller includes a transmitter for connecting the first strain sensor, the second strain sensor, and the third strain sensor The sensing result is output by means of wireless communication. The smart apparel according to claim 8, wherein the motion sensing device further includes an alignment pattern located at the center point of the elastic membrane body, and the alignment pattern is aligned with the rotator region of the apparel body The blocks overlap.

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