CN214965485U - Intelligent seat based on optical fiber vital sign sensor - Google Patents

Abstract

The utility model discloses an intelligent seat based on an optical fiber vital sign sensor, which comprises a seat cushion and a backrest; wherein, at least one of the seat cushion and the backrest is internally provided with an optical fiber sensor and a PCB circuit board; the optical fiber sensor comprises a deformation sensing layer, an optical fiber, a light source and light sensation; the PCB circuit board is provided with a compensation unit circuit, a detection unit circuit, a control and processing circuit and an interface circuit; the compensation unit circuit is used for compensating the light source; the detection unit circuit is used for receiving the light sensation output value; the control and processing circuit is respectively connected with the detection unit circuit and the compensation unit circuit and is used for receiving data information sensed by the optical fiber sensor, processing and analyzing the data information to obtain vital sign information and sending monitoring instruction information according to the vital sign information. The utility model discloses intelligence seat is with low costs, sensitivity, precision height, and can avoid the difference in the production process and lead to the poor problem of final finished product's uniformity, has improved the yield of product.

Description

Intelligent seat based on optical fiber vital sign sensor

Technical Field

The utility model relates to a seat technical field especially relates to an intelligence seat based on optic fibre vital sign sensor.

Background

Various innovative seats in the current seat field are designed in various ways, such as a self-adjustable seat, a seat with a massage and health care function, and the like, and most of the seats mainly aim at some improvements on the mechanical mechanism of the seat so as to improve the comfort of a user and facilitate the operation.

In addition to making the driver and the passenger comfortable and convenient to operate, it would be very significant to expand the functions of the vehicle seat. In the aspect of an on-vehicle seat, phenomena such as fatigue driving of a driver, abnormal vital signs generated during driving of the vehicle by the driver and the like often occur.

The vital signs are important signs of the existence and quality of vital activities, are an objective showing of the intrinsic activities of the organism, are reliable indexes for measuring physical and mental conditions, can know the occurrence, attack and recovery conditions of diseases by monitoring the vital signs, and provide basis for prevention, diagnosis, quality, nursing and the like. Therefore, research and development on the vehicle seat are needed, and a seat scheme capable of monitoring vital signs of a driver and a passenger in real time is provided.

The above background disclosure is only provided to aid in understanding the inventive concepts and solutions of the present invention, and it does not necessarily pertain to the prior art of this patent application, and it should not be used to assess the novelty and inventive aspects of this application without explicit evidence that such contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligence seat based on optic fibre vital sign sensor to solve at least one kind of problem among the above-mentioned background art problem.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a smart seat based on fiber optic vital signs sensors, comprising: a seat cushion and a backrest connected with the seat cushion; wherein, at least one of the seat cushion and the backrest is internally provided with an optical fiber sensor and a PCB circuit board connected with the optical fiber sensor; the optical fiber sensor is in a curved surface shape or a horizontal surface shape and comprises a deformation sensing layer, an optical fiber arranged on the deformation sensing layer, a light source and light sensation; the PCB circuit board is provided with a compensation unit circuit, a detection unit circuit, a control and processing circuit and an interface circuit; the compensation unit circuit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit circuit is connected with the light sense of the optical fiber sensor and used for receiving a light sense output value; the control and processing circuit is respectively connected with the detection unit circuit and the compensation unit circuit and is used for receiving data information sensed by the optical fiber sensor, processing and analyzing the data information to obtain vital sign information and sending monitoring instruction information according to the vital sign information.

In some embodiments, the compensation unit circuit comprises a light source driving circuit and a light source power adjusting circuit connected with the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

In some embodiments, the detection unit circuit comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processor circuit after the light sensation is processed by the analog-to-digital converter.

In some embodiments, the system further comprises a human-computer interface, wherein the human-computer interface is used for displaying the monitored vital sign data in real time and providing a human-computer interaction channel.

In some embodiments, a plurality of mesh openings are disposed on the deformation sensing layer of the fiber optic sensor; the inner surface of the deformation induction layer is provided with a concave space in a concave mode, and convex ribs are arranged in the concave space.

In some embodiments, the outer surface of the deformation sensing layer is provided with a sensitivity enhancing structure, the sensitivity enhancing structure comprises a plurality of protruding points arranged at intervals, and the protruding points are arranged on the outer surface of the deformation sensing layer at positions corresponding to the protruding ribs.

In some embodiments, the optical fiber is placed on the rib in the concave space in a curved shape, and two ends of the optical fiber are fixed and extend outwards through the wire grooves arranged on the inner side of the deformation sensing layer.

In some embodiments, the ribs are arranged in a linear strip disposed between the plurality of mesh openings, the ribs being triangular in cross-section.

In some embodiments, the deformation sensing layer includes a first deformation sensing layer and a second deformation sensing layer, and the optical fiber is irregularly bent and disposed between the first deformation sensing layer and the second deformation sensing layer.

In some embodiments, the protrusions and ribs of the first deformation sensing layer are staggered with the protrusions and ribs of the second deformation sensing layer.

The utility model discloses technical scheme's beneficial effect is:

compared with the prior art, the utility model discloses intelligence seat based on optic fibre vital sign sensor is with low costs, sensitivity, precision height to can avoid the difference in the production process and lead to the poor problem of final off-the-shelf uniformity, can improve the yield of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of an intelligent seat based on an optical fiber vital signs sensor according to an embodiment of the present invention;

fig. 2 is a cutaway illustration of an intelligent seat based on a fiber optic vital signs sensor, according to an embodiment of the present invention;

fig. 3 is a fiber optic sensor illustration of a smart seat based on a fiber optic vital signs sensor according to an embodiment of the present invention;

fig. 4 is a waveform of respiration obtained when the intelligent seat based on the optical fiber vital sign sensor monitors respiration according to an embodiment of the present invention;

fig. 5 is a block diagram of a schematic block diagram of an intelligent seat based on fiber optic vital signs sensors, according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of an optical fiber sensor of an intelligent seat based on an optical fiber vital signs sensor according to an embodiment of the present invention;

FIG. 7 is a perspective view from another perspective of the embodiment of FIG. 6 without the optical fibers;

FIG. 8 is a perspective view of FIG. 7 from another perspective;

fig. 9 is a schematic perspective view of another optical fiber sensor of the intelligent seat based on the optical fiber vital sign sensor according to an embodiment of the present invention;

FIG. 10 is an exploded view of the fiber sensor of the embodiment of FIG. 9;

FIG. 11 is a schematic perspective view of the optical fiber sensor of the embodiment of FIG. 9 from another perspective;

fig. 12 is a sectional view taken along the line a-a in fig. 11.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the embodiment of the present invention will solve more clearly understand, the following combines the drawings and embodiment, and goes forward the further detailed description of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixation or for circuit connection.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3 and 5, an intelligent seat 300 based on an optical fiber vital sign sensor according to an embodiment of the present invention includes a seat cushion 1 and a backrest 2 connected to the seat cushion; wherein, at least one of the seat cushion 1 and the backrest 2 is internally provided with an optical fiber sensor 3 and a PCB 4 connected with the optical fiber sensor 3; in some embodiments, a headrest 5 may be further included, and the optical fiber sensor 3 is disposed in the headrest 5; the optical fiber sensor 3 is in a curved surface shape or a horizontal surface shape and comprises a deformation sensing layer, an optical fiber arranged on the deformation sensing layer, a light source and light sensation; the PCB circuit board is provided with a compensation unit circuit 30, a detection unit circuit 31, a control and processing circuit and an interface circuit (not shown); the compensation unit circuit 30 is connected with the light source of the optical fiber sensor to compensate the light source; the detection unit circuit 31 is connected with the light sense of the optical fiber sensor and used for receiving the light sense output value; the control and processing circuit is respectively connected with the detection unit circuit and the compensation unit circuit and is used for receiving data information sensed by the optical fiber sensor, processing and analyzing the data information, extracting vital sign information and sending monitoring instruction information according to the vital sign information.

Specifically, the compensation unit circuit 30 includes a light source driving circuit and a light source power adjusting circuit connected to the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

The detection unit circuit 31 comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processor circuit after the light sensation is processed by the analog-to-digital converter.

The control and processor circuit comprises a controller and a processor; in some embodiments, a memory is also included. The storage unit may be a volatile or nonvolatile storage device or a combination thereof, and is not particularly limited in the embodiments of the present invention. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an erasable Programmable Read-Only Memory (EPROM), an electrically erasable Programmable Read-Only Memory (EEPROM), a magnetic random Access Memory (FRAM), and a Flash Memory (Flash Memory). Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory.

In some embodiments, the interface circuit is connected with a speaker for implementing functions such as alarm.

In some embodiments, the system further comprises a human-computer interface 32, which is used for displaying the monitored vital sign data in real time and providing a channel for human-computer interaction; the vital sign data comprises respiration data, heart rate data, body movement data in a sleep state and the like. The human-machine interface may include a display device and an input device, in some embodiments, the display device may be a display screen, and the input device may be a keyboard or a touch device.

In some embodiments, the interface circuit is connected to a communication module 33, through which the interface circuit is connected to a remote processing and display unit; the remote processing and display unit is connected with the vital sign extraction and analysis module through the communication module, so that monitored information can be displayed, and the function of remote real-time monitoring is realized. In some embodiments, the communication module may also be disposed directly on the PCB circuit board.

Referring to fig. 6 to 8, a plurality of mesh holes 101 are arranged on the deformation sensing layer 10 of the optical fiber sensor 100; wherein, the inner surface of the deformation induction layer 10 is concavely provided with a concave space 102, and a convex rib 103 is arranged in the concave space 102; the outer surface of the deformation induction layer 10 is provided with a sensitization structure, the sensitization structure comprises a plurality of salient points 105 which are arranged at intervals, and the salient points 105 are arranged on the outer surface of the deformation induction layer 10 and correspond to the positions of the convex ribs 103; the optical fiber 11 is placed on the convex rib 103 in the concave space in a bending shape, and two ends of the optical fiber 11 are fixed and extend outwards through the wire grooves 104 arranged on the inner side of the deformation sensing layer 10. It should be understood that the sensitization structure is not limited to the structure using the bumps, and other structures for increasing the sensitivity of the sensor are also possible, which is not described in the embodiment of the present invention by way of example.

Through set up plural mesh 101 on deformation response layer 10 for deformation response layer 10 wholly constitutes a network structure, simultaneously, through setting up concave type space 102 at deformation response layer 10 internal surface, reduces the thickness of deformation response layer 10, thereby has increased the elasticity of deformation response layer 10, has further promoted optical fiber sensor 100's sensitivity. In addition, by providing the concave space 102 and providing the rib 103 in the concave space 102, the miniaturization design of the optical fiber sensor is facilitated. In this embodiment, the mesh 101 is oval, and it can be understood that, in some embodiments, the mesh 101 may also be in other irregular shapes, which is not particularly limited in the embodiments of the present invention, and no matter what shape is adopted, the present invention is not limited to this, and the mesh belongs to the protection scope of the present invention.

The rib 103 is arranged in a linear strip shape arranged among the plurality of meshes 101, and the cross section of the rib 103 is triangular, so that when the optical fiber 11 is placed on the rib 103, the contact area between the optical fiber 11 and the rib 103 is the smallest, thereby ensuring that when the optical fiber 11 is subjected to external pressure, the pressure per unit area on the optical fiber 11 is the largest, i.e. the sensitivity of the optical fiber sensor is enhanced. In the embodiment of the present invention, the height of the rib 103 is set to have a difference with the depth of the concave space 102, the difference is equal to the diameter of the optical fiber 11, so that the optical fiber 11 can be kept flush with the plane where the inner surface of the sensing layer is located when being placed on the rib 103. It will be appreciated that in some embodiments, the ribs 103 may also be arranged in curved strips arranged between the plurality of mesh openings 101.

The optical fiber sensor changes the pressure distribution of the deformation sensing layer 10 by adding the salient point structure, increases the pressure of the intersection point area of the optical fiber 11 and the convex rib 103, and reduces the pressure of other areas. Meanwhile, the convex rib 103 is of a structure with a triangular cross section, so that the area of a contact point of the optical fiber and the convex rib is reduced, the pressure applied to the optical fiber at the contact point is increased, and the sensitivity of the sensor is enhanced.

For convenience of explanation, the optical fiber sensor in the embodiment of the present invention is described by taking the case that the deformation sensing layer is square, and it should be noted that the present invention does not limit the shape of the deformation sensing layer, and may be square or any other irregular shape.

Referring to fig. 9-12, in some embodiments, the optical fiber sensor has a double-layer sensing structure, and the optical fiber sensor 200 includes two deformation sensing layers 20, 21 and an optical fiber 22; specifically, the deformation sensing layer includes a first deformation sensing layer 20 and a second deformation sensing layer 21; wherein, a plurality of first meshes 201 are arranged on the first deformation sensing layer 20; a concave space 202 is concavely arranged on the inner side of the first deformation sensing layer 20, and the convex rib 203 is arranged in the concave space 202; the outer surface of the first deformation sensing layer 20 is provided with a sensitization structure, the sensitization structure comprises a plurality of salient points 205 arranged at intervals, and the salient points 205 are arranged on the outer surface of the first deformation sensing layer 20 and correspond to the positions of the convex ribs 203. A slot 204 is formed at one end of the inner side of the first deformation sensing layer 20 for fixing the optical fiber 22.

The second deformation sensing layer 21 has the same size as the first deformation sensing layer 20, so as to ensure that the two layers are completely overlapped to form a complete whole after being mounted together. A plurality of second mesh holes 211 are arranged on the second deformation sensing layer 21; a concave space (not shown) is concavely arranged on the inner side of the second deformation sensing layer 21, and the convex rib 213 is arranged in the concave space; the outer surface of the second deformation sensing layer 21 is provided with a sensitivity enhancing structure, the sensitivity enhancing structure comprises a plurality of protruding points 215 arranged at intervals, and the protruding points 215 are arranged on the outer surface of the second deformation sensing layer 21 at positions corresponding to the protruding ribs 213. A wire groove is formed at one end of the inner side of the second deformation sensing layer 21 to fix the optical fiber 22.

The optical fiber 22 is bent in an irregular shape and is installed between the first deformation sensing layer 20 and the second deformation sensing layer 21, and two ends of the optical fiber 22 are fixed through the wire grooves in the first and second deformation sensing layers and extend outwards. In this embodiment, the height of the ribs 203, 213 is set to have a difference from the depth of the concave space, which is equal to one-half of the diameter of the optical fiber, so that the optical fiber can tightly abut against the ribs 203, 213 of the first and second deformation sensing layers and be tightly fixed between the first and second deformation sensing layers 20, 21 when the first and second deformation sensing layers are mounted together.

Referring to fig. 10 and 12, in this embodiment, when the first deformation sensing layer 20 and the second deformation sensing layer 21 are fitted together, the protrusions 205 and the ribs 203 on the first deformation sensing layer 20 are staggered with the protrusions 215 and the ribs 213 on the second deformation sensing layer 21; the ribs 203 of the first deformation sensing layer 20 correspond to the holes 211 of the second deformation sensing layer 21, and correspondingly, the holes 201 of the first deformation sensing layer 20 correspond to the ribs 213 of the second deformation sensing layer 21.

Referring to fig. 12, in the present embodiment, the optical fiber 22 is a multi-fold bent structure, and is disposed between the first deformation sensing layer 20 and the second deformation sensing layer 21. The first deformation sensing layer 20 and the second deformation sensing layer 21 have the sensitivity enhancing structures on the surfaces contacting with the outside, and the surfaces having the ribs 203, 213 contact with the optical fiber 22 through the ribs 203, 213. When external deformation or pressure acts on the salient points 205 and 215 of the sensitization structure, deformation of the first deformation sensing layer 20 and/or the second deformation sensing layer 21 is caused, deformation is conducted to the optical fiber 22 through the convex ribs 203 and 213 of the first deformation sensing layer 20 and/or the second deformation sensing layer 21, so that the optical fiber 22 generates micro-bending deformation and optical power loss occurs, the optical power loss is detected through the signal detector and converted into an electric signal, and the electric signal is processed to obtain an external change parameter.

Referring to fig. 2, 4 and 12, when the chair is used, a user sits on the seat cushion 1, the surfaces of the seat cushion 1 and the backrest 2 are in contact with the outside human body, weak force generated by human body vital activities such as respiration and heartbeat is transmitted to the optical fiber sensor arranged in the seat cushion and/or the backrest, the weak force is transmitted to the first deformation sensing layer 20 and/or the second deformation sensing layer 21 through the sensitivity enhancing structure on the optical fiber sensor, the first deformation sensing layer 20 and/or the second deformation sensing layer 21 is subjected to force deformation to press the optical fiber 22 to generate micro-bending deformation, and then micro-bending damage is generated, the loss is acquired by light sense and converted into an electric signal, the control and processing circuit performs data processing, and vital sign data are extracted. Wherein the human life activities include: on, off, breathing, heartbeat, body movement, etc.; the vital sign data includes: on-pillow, off-pillow, respiration rate, heart rate, respiration waveform, heartbeat waveform, body movement times and waveform. Referring to fig. 5, the breathing waveform under the normal breathing condition is B1, and hold back breath or the breathing waveform under the no breathing condition is B2, and it is visible to have this, adopt the utility model discloses when carrying out the respiratory monitoring, all can monitor data under having breathing (dynamic condition) or no breathing (static condition).

Use car seat as an example, adopt the embodiment of the utility model provides an intelligent seat based on optic fibre vital sign sensor can monitor navigating mate's vital sign information in real time, when monitoring vital sign data and having abnormal change, can report to the police and remind the driver to pay attention to the rest of stopping a car, perhaps obtains helping through remote alarm to can avoid taking place unexpected risk.

Referring to fig. 12, compared to the single-layer sensing layer structure, in the double-layer sensing layer structure, both sides of the optical fiber 22 are configured to contact the ribs 203, 213 at staggered intervals, and the contact points of the optical fiber 22 and the ribs are dense, so that the sensitivity and the test accuracy of the optical fiber sensor are greatly improved.

The utility model discloses intelligent seat sensitivity based on optic fibre vital sign sensor is high, the measuring accuracy is accurate, can reach the medical grade, can accurate perception static force and dynamic force, and range of application and scene are wide, and the product uniformity yield is high, and is with low costs, and the regional distributing type monitoring of being convenient for is used.

It is to be understood that the foregoing is a more detailed description of the invention, and specific/preferred embodiments thereof are described, and it is not intended that the invention be limited to the specific embodiments disclosed. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims (10)

1. An intelligent seat based on optical fiber vital sign sensors, comprising: a seat cushion and a backrest connected with the seat cushion; wherein, at least one of the seat cushion and the backrest is internally provided with an optical fiber sensor and a PCB circuit board connected with the optical fiber sensor; the optical fiber sensor is in a curved surface shape or a horizontal surface shape and comprises a deformation sensing layer, an optical fiber arranged on the deformation sensing layer, a light source and light sensation; the PCB circuit board is provided with a compensation unit circuit, a detection unit circuit, a control and processing circuit and an interface circuit; the compensation unit circuit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit circuit is connected with the light sense of the optical fiber sensor and used for receiving a light sense output value; the control and processing circuit is respectively connected with the detection unit circuit and the compensation unit circuit and is used for receiving data information sensed by the optical fiber sensor, processing and analyzing the data information to obtain vital sign information and sending monitoring instruction information according to the vital sign information.

2. The fiber optic vital signs sensor-based smart seat of claim 1, wherein: the compensation unit circuit comprises a light source driving circuit and a light source power adjusting circuit connected with the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

3. The fiber optic vital signs sensor-based smart seat of claim 1, wherein: the detection unit circuit comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processor circuit after the light sensation is processed by the analog-to-digital converter.

4. The fiber optic vital signs sensor-based smart seat of claim 1, wherein: the system also comprises a human-computer interface, and the human-computer interface is used for displaying the monitored vital sign data in real time and providing a human-computer interaction channel.

5. The intelligent optical fiber vital signs sensor-based seat according to any one of claims 1-4, wherein: a plurality of meshes are arranged on the deformation sensing layer of the optical fiber sensor; the inner surface of the deformation induction layer is provided with a concave space in a concave mode, and convex ribs are arranged in the concave space.

6. The fiber optic vital signs sensor-based smart seat of claim 5, wherein: the surface on deformation response layer is provided with the sensitization structure, the sensitization structure includes the bump that a plurality of intervals set up, the bump sets up on deformation response layer surface corresponding to the position department of bead.

7. The fiber optic vital signs sensor-based smart seat of claim 6, wherein: the optical fiber is placed on the convex edge in the concave space in a bending shape, and two ends of the optical fiber are fixed through the wire grooves formed in the inner side of the deformation sensing layer and extend outwards.

8. The fiber optic vital signs sensor-based smart seat of claim 7, wherein: the ribs are arranged in a linear strip shape which is distributed among the meshes, and the cross section of each rib is triangular.

9. The fiber optic vital signs sensor-based smart seat of claim 8, wherein: the deformation sensing layer comprises a first deformation sensing layer and a second deformation sensing layer, and the optical fiber is bent in an irregular shape and is arranged between the first deformation sensing layer and the second deformation sensing layer.

10. The fiber optic vital signs sensor-based smart seat of claim 9, wherein: the salient points and the convex ridges on the first deformation sensing layer and the salient points and the convex ridges on the second deformation sensing layer are arranged in a staggered mode.

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