CN112442246A - Preparation method of flexible pressure sensing film, tumble alarm flexible floor and preparation method - Google Patents
Preparation method of flexible pressure sensing film, tumble alarm flexible floor and preparation method Download PDFInfo
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/16—Flooring, e.g. parquet on flexible web, laid as flexible webs; Webs specially adapted for use as flooring; Parquet on flexible web
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/22—Resiliently-mounted floors, e.g. sprung floors
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
- G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
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- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
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Abstract
The invention relates to a preparation method of a flexible pressure sensing film, a tumble alarm flexible floor and a preparation method thereof, wherein the tumble alarm flexible floor comprises the following steps: the flexible pressure sensing film comprises an upper protection layer, an upper electrode layer, an isolation layer, a lower electrode layer, a lower protection layer and a flexible pressure sensing film, wherein the upper protection layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protection layer are sequentially bonded together. The invention discloses a flexible floor for alarming falling based on a flexible pressure sensing film, wherein the underground floor can be used for detecting whether a person falls or not, and the damage caused by falling is greatly reduced after the person falls due to the softness and elasticity of the underground floor.
Description
Technical Field
The invention relates to the field of safety protection equipment, in particular to a preparation method of a flexible pressure sensing film, a tumble alarm flexible floor and a manufacturing method.
Background
In the modern society, the economy develops rapidly, and along with the economic soaring, the aging problem becomes more and more severe. Among them, the elderly living alone may have severe diseases such as stroke and cerebral hemorrhage if they fall down at home. In order to reduce the probability of serious diseases and even death of the old people caused by falling, two points are needed: firstly, alarming and curing are carried out in time after the fall; and secondly, the injury to the old caused by falling is reduced. The prior art has the following schemes:
1. based on the video analysis scheme: the mode has the defect of low recognition rate, and meanwhile, due to the fact that privacy of personal life is involved, many people do not want to install the system, and many places are not suitable for installation. The tumble alarm method realized by video monitoring needs more hardware resources, has higher requirement on hardware processing speed, establishes a neural network aiming at different users, and has complex process and poor reproducibility; when current alarm device fell down at the old man, the camera can't transmit away sight at that time fast, and the observation personnel can't in time receive signal at that time to lead to the emergence of tragedy, and when the indoor installation camera, the dead angle appears easily in the shooting scope of camera, can't in time detect the activity condition that the old man was at.
2. Bracelet alarm scheme: the other method is a method for judging the fall through three-axis acceleration vector modulus and setting a threshold, and the method is simple and easy to operate and strong in real-time performance, but the judgment is too simple, and the misjudgment rate is high. The old man realizes falling down the judgement through wearing bracelet or the warning sensor that falls down that corresponds, and this type of sensor that relies on to wear is a passive form and reports to the police. However, wearable alarm devices require equipment to be carried at all times, and are often forgotten or forgotten to be charged for home use, particularly for the elderly.
3. The passive alarm scheme is as follows: some help-seeking devices exist in the market at present, but the help-seeking devices are generally carried by old people or critical patients, and once the old people or the critical patients have certain danger, the old people or the critical patients need to touch a switch on the help-seeking devices, so that the outside can know the state of the old people or the critical patients. The core shortcoming of above-mentioned SOS device lies in needing manual operation, in case the old man is in unconscious state or has lost limbs mobility, then will not play a role at all, so this kind of product still has great improvement space, however, need wear this restriction of extra equipment, the realization effect of having hindered current scheme greatly, and equipment is worn comparatively loaded down with trivial details, old man or patient do not have the difficult operation of touching this kind of device before, and the equipment position of wearing has strict requirement, ordinary people is difficult to master, may additionally need the professional to install on the door. In addition, most of the old people or patients are inconvenient to move, the situation that the equipment cannot be worn due to the fact that the physical conditions do not come in time is likely to happen, at the moment, once danger occurs, the alarm cannot be given in time, the consequence is unreasonable, if the system is guaranteed to work normally under the situation, the equipment needs to be worn for 24 hours by the human body, and the comfort degree of the old people and the patients is affected.
4. The wireless alarm scheme is as follows: non-dynamic monitoring is another idea. The idea is common in other fields, namely that people in a certain space are dynamically judged through some capturing devices, so that some positions of the people are fed back and uploaded. Common schemes are: UWB, Zigbee, millimeter wave monitoring but such costs are very high and are difficult to implement.
Disclosure of Invention
The invention provides a novel preparation method of a flexible pressure sensing membrane, aiming at solving the problems of false alarm, lack of privacy protection measures, realization of alarm, incapability of providing an accurate falling position, delay of optimal rescue time, capability of providing only alarm without protection measures and other realities in the aspect of old age preservation in the existing falling monitoring scheme, and comprising the following steps:
stirring and blending 1 part of conductive material, 1-3 parts of long alkyl chain micromolecule material and 100-1000 parts of macromolecule elastic material at normal temperature to form slurry;
coating the slurry on the surface of a substrate material with different roughness, and curing in an environment with the temperature of 70-100 ℃;
the cured flexible pressure sensing membrane is peeled off the base material and cut into the desired shape.
The further improvement is that the conductive material comprises any one of carbon black, polyethylene dioxythiophene, polyphenylacetylene, polyaniline, polypyrrole, carbon nano tube, graphene and conductive composite high polymer material;
the long alkyl chain micromolecule material comprises any one of octadecyl trichlorosilane, dodecyl mercaptan, 1-decyl mercaptan, sodium dodecyl benzene sulfonate and octadecyl dihydroxyethyl amine oxide;
the high-molecular elastic material comprises any one of polymethyl methacrylate, polystyrene, polyethylene oxide, thermoplastic polyurethane elastomer rubber, polyurethane, polyimide and organic silica gel.
In another aspect, the present invention provides a fall alarm flexible floor, comprising: the flexible pressure sensing film comprises an upper protection layer, an upper electrode layer, an isolation layer, a lower electrode layer, a lower protection layer and a flexible pressure sensing film, wherein the upper protection layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protection layer are sequentially bonded together, and the upper protection layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protection layer are all made of insulating materials;
the upper electrode layer and the lower electrode layer are provided with electrode arrays formed by a plurality of electrodes corresponding to the positions of the electrodes, the isolation layer is provided with through holes corresponding to the positions of the electrodes, and a cavity defined by the upper electrode layer, the lower electrode layer and each through hole is internally provided with two stacked flexible pressure sensing films.
In a further improvement, the electrode is a silver electrode.
The further improvement is that the upper protective layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protective layer are made of one or more of PC, PP, PVC, PET and PI.
In a further improvement, each electrode is connected with a lead.
In a further improvement, the conductive lines are FPCs imprinted on the electrodes.
In a further improvement, the two flexible pressure sensing membranes have different surface roughness.
In another aspect, the invention further provides a method for manufacturing the fall alarm flexible floor, wherein the method comprises the following steps: the method comprises the following steps:
preparing a flexible pressure sensing membrane;
printing an electrode array consisting of a plurality of electrodes on the lower electrode layer;
forming a through hole array corresponding to the electrode position on the isolation layer;
bonding the isolation layer and one side of the electrode of the lower electrode layer together;
placing two flexible pressure sensing membranes in the through hole;
an electrode array formed by a plurality of electrodes is printed on the upper electrode layer and corresponds to the electrode array on the lower electrode layer in position;
bonding one electrode side of the upper electrode layer and the isolation layer together;
respectively sticking an upper protective layer and a lower protective layer on the outer side of the upper electrode layer and the outer side of the lower electrode layer;
and printing an FPC on the electrode.
The invention has the beneficial effects that:
according to the flexible pressure sensing film preparation method, the fall alarm flexible floor and the preparation method, the fall alarm flexible floor is prepared based on the flexible pressure sensing film, fall monitoring and fall buffering are integrated on one product, and the flexible pressure sensing film can be used for detecting whether a person falls or not and the position of the person, and greatly reducing the injury caused by the fall after the person falls due to the fact that the flexible pressure sensing film is soft and elastic.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of a fall warning flexible floor of the present invention;
fig. 2 is a structural schematic view of a fall alarm flexible floor in an application example of the invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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 invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1, the present invention provides, in one aspect, a method for preparing a flexible pressure sensing membrane, comprising the steps of:
stirring and blending 1 part of conductive material, 1-3 parts of long alkyl chain micromolecule material and 100-1000 parts of macromolecule elastic material at normal temperature to form slurry;
coating the slurry on the surface of a substrate material (such as sand paper, non-woven fabric, silk, etc.) with different roughness, and curing for 10-30 minutes in an environment with the temperature of 70-100 ℃;
and (3) tearing off the cured flexible pressure sensing film from the substrate material, and cutting the flexible pressure sensing film into a circle by using tools such as laser, a die cutter and the like.
The further improvement is that the conductive material comprises any one of carbon black, polyethylene dioxythiophene, polyphenylacetylene, polyaniline, polypyrrole, carbon nano tube, graphene and conductive composite high polymer material;
the long alkyl chain micromolecule material comprises any one of octadecyl trichlorosilane, dodecyl mercaptan, 1-decyl mercaptan, sodium dodecyl benzene sulfonate and octadecyl dihydroxyethyl amine oxide;
the high-molecular elastic material comprises any one of polymethyl methacrylate, polystyrene, polyethylene oxide, thermoplastic polyurethane elastomer rubber, polyurethane, polyimide and organic silica gel.
Further, the conductive polymer material comprises a conductive layer, an adhesive layer and a modification layer, wherein the modification layer is attached to the conductive layer through the adhesive layer, and the modification layer is a long-chain small molecular layer. Specifically, the long-chain small molecular layer uniformly and vertically grows on the surface of the adhesion layer by a gas phase volatilization method. The small molecule materials are uniformly and vertically grown on the surface of the conducting layer. The conducting layer can be any one of a carbon nano tube film, a poly 3, 4-ethylenedioxythiophene film, a graphene film and a polyaniline film. The adhesive layer can be conductive silver glue, conductive silica gel or the like.
In another aspect, the present invention provides a fall alarm flexible floor, comprising: the pressure sensor comprises an upper protection layer 1, an upper electrode layer 2, an isolation layer 3, a lower electrode layer 4, a lower protection layer 5 and a flexible pressure sensing film 6, wherein the upper protection layer 1, the upper electrode layer 2, the isolation layer 3, the lower electrode layer 4 and the lower protection layer 5 are sequentially bonded together, and the upper protection layer 1, the upper electrode layer 2, the isolation layer 3, the lower electrode layer 4 and the lower protection layer 5 are all made of insulating materials;
the upper electrode layer 2 and the lower electrode layer 4 are provided with electrode arrays formed by a plurality of electrodes 7 corresponding in position, the isolation layer 3 is provided with through holes 31 corresponding in position to the electrodes 7, and a cavity surrounded by the upper electrode layer 2, the lower electrode layer 4 and each through hole 31 is provided with two stacked flexible pressure sensing films 6 (the two flexible pressure sensors in fig. 1 are only two flexible pressure sensors placed in one through hole, and other through holes are also provided with two flexible pressure sensors stacked up and down, which are not shown in the figure).
In a further improvement, the electrode 7 is a silver electrode.
The further improvement is that the material of the upper protective layer 1, the upper electrode layer 2, the isolation layer 3, the lower electrode layer 4 and the lower protective layer 5 is one or more of PC, PP, PVC, PET and PI.
In a further improvement, each electrode 7 is connected with a lead 8.
In a further improvement, the conductive wires 8 are FPC printed on the electrodes.
In a further development, the two flexible pressure sensing membranes 6 have different surface roughness.
In another aspect, the invention also provides a method for manufacturing the falling alarm flexible floor, which comprises the following steps: the method is characterized by comprising the following steps:
preparing a flexible pressure sensing membrane;
printing an electrode array consisting of a plurality of electrodes on the lower electrode layer, wherein the electrode shape can be set according to actual needs, such as: square, diamond, etc., which in this embodiment is circular;
forming a through hole array corresponding to the electrode position on the isolation layer;
bonding the isolation layer and one side of the electrode of the lower electrode layer together;
placing two flexible pressure sensing membranes in the through hole;
an electrode array formed by a plurality of electrodes is printed on the upper electrode layer and corresponds to the electrode array on the lower electrode layer in position;
bonding one electrode side of the upper electrode layer and the isolation layer together;
respectively sticking an upper protective layer and a lower protective layer on the outer side of the upper electrode layer and the outer side of the lower electrode layer;
and printing an FPC on the electrode.
As shown in fig. 2, the following is a specific application example:
the selection size is: 0.5m x 0.188 mm, thickness range: 0.05 ~ 0.5 mm's PET material membrane is as the bottom electrode layer (the PET of different thickness will lead to the cushioning property difference on floor, and the probability that prevents to tumble injury can be promoted to the PET of a bit thick).
Printing 16 circular silver electrodes (the diameter of a circle is 10-50 mm) which are arranged in a 4 multiplied by 4 array form on the lower electrode layer by a screen printing method: the square resistance value range: 0.01-1 omega/sqare.
Taking another PET as an isolation layer (the thickness is 0.01-0.30 mm), and etching 16 round silver electrode holes which are arranged in a 4 multiplied by 4 array form.
Printing non-setting adhesive on the periphery of the circular electrode of the lower electrode layer by a screen printing method; pasting an isolating layer, printing a layer of adhesive sticker on the isolating layer by a screen printing method, and placing flexible pressure sensing films with different roughness (80, 120, 240,320, 400, 600,800,1000,1200,1500,1800,2000,2500,3000) in pairs at the positions of the electrodes.
Taking a PET film as an upper electrode layer, and printing 16 circular silver electrodes arranged in a 4 x 4 array form on the PET film, wherein the circular diameter of each silver electrode is as follows: 10-50 mm): the square resistance value range: 0.01-1 omega/sqare.
And (3) placing one side of the electrode of the upper electrode layer on the surface of the isolating layer coated with the adhesive sticker, heating to 30-100 ℃, and curing the adhesive sticker to obtain the device A.
Printing adhesive sticker on two sides of the device A, and sticking two layers of PET as protective layers to finish a primary product B.
And 4pin FPC with a gap of 0.25mm is stamped on the silver electrode of B through a pressing and arranging machine, so that the current of a device is led out, and the final product of the tumble alarm flexible floor is finished.
According to the flexible pressure sensing film preparation method, the fall alarm flexible floor and the preparation method, the fall alarm flexible floor is prepared based on the flexible pressure sensing film, the underground floor can be used for detecting whether a person falls or not, and due to the fact that the underground floor is soft and elastic, damage caused by falling is greatly reduced after the person falls.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A preparation method of a flexible pressure sensing film is characterized by comprising the following steps:
stirring and blending 1 part of conductive material, 1-3 parts of long alkyl chain micromolecule material and 100-1000 parts of macromolecule elastic material at normal temperature to form slurry;
coating the slurry on the surface of a substrate material with different roughness, and curing in an environment with the temperature of 70-100 ℃;
the cured flexible pressure sensing membrane is peeled off the base material and cut into the desired shape.
2. The method for preparing a flexible pressure sensing film according to claim 7, wherein the conductive material comprises any one of carbon black, polyethylenedioxythiophene, polyphenylacetylene, polyaniline, polypyrrole, carbon nanotube, graphene, and conductive composite polymer material;
the long alkyl chain micromolecule material comprises any one of octadecyl trichlorosilane, dodecyl mercaptan, 1-decyl mercaptan, sodium dodecyl benzene sulfonate and octadecyl dihydroxyethyl amine oxide;
the high-molecular elastic material comprises any one of polymethyl methacrylate, polystyrene, polyethylene oxide, thermoplastic polyurethane elastomer rubber, polyurethane, polyimide and organic silica gel.
3. A tumble alarm flexible floor, comprising: the flexible pressure sensing film comprises an upper protection layer, an upper electrode layer, an isolation layer, a lower electrode layer, a lower protection layer and a flexible pressure sensing film, wherein the upper protection layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protection layer are sequentially bonded together, and the upper protection layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protection layer are all made of insulating materials;
the upper electrode layer and the lower electrode layer are provided with electrode arrays formed by a plurality of electrodes corresponding to the positions of the electrodes, the isolation layer is provided with through holes corresponding to the positions of the electrodes, and a cavity defined by the upper electrode layer, the lower electrode layer and each through hole is internally provided with two stacked flexible pressure sensing films.
4. The fall alarm flexible floor of claim 3, wherein the electrode is a silver electrode.
5. The tumble alarming flexible floor according to claim 3, wherein the upper protective layer, the upper electrode layer, the isolation layer, the lower electrode layer and the lower protective layer are made of one or more of PC, PP, PVC, PET and PI.
6. The fall alarm flexible floor of claim 3, wherein each of the electrodes is connected to a wire.
7. The fall alarm flexible floor according to claim 6, wherein the wire is an FPC printed on the electrode.
8. The fall alarm flexible floor according to claim 3, wherein the two flexible pressure sensing membranes have different surface roughness.
9. A method for making the fall alarm flexible floor as claimed in any one of claims 3 to 8: the method is characterized by comprising the following steps:
preparing a flexible pressure sensing membrane;
printing an electrode array consisting of a plurality of electrodes on the lower electrode layer;
forming a through hole array corresponding to the electrode position on the isolation layer;
bonding the isolation layer and one side of the electrode of the lower electrode layer together;
placing two flexible pressure sensing membranes in the through hole;
an electrode array formed by a plurality of electrodes is printed on the upper electrode layer and corresponds to the electrode array on the lower electrode layer in position;
bonding one electrode side of the upper electrode layer and the isolation layer together;
respectively sticking an upper protective layer and a lower protective layer on the outer side of the upper electrode layer and the outer side of the lower electrode layer;
and printing an FPC on the electrode.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481683A (en) * | 2023-05-09 | 2023-07-25 | 山西大学 | Full-printing flexible pressure sensing array with micro-column structure and preparation method thereof |
| CN117053937A (en) * | 2023-10-12 | 2023-11-14 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320883A (en) * | 1986-07-14 | 1988-01-28 | Fujikura Ltd | Piezoelectric film and manufacture thereof |
| CN105552132A (en) * | 2016-02-04 | 2016-05-04 | 京东方科技集团股份有限公司 | Thin film transistor sensor and fabrication method thereof |
| CN106197772A (en) * | 2016-07-06 | 2016-12-07 | 无锡格菲电子薄膜科技有限公司 | A kind of pliable pressure sensor and preparation method thereof |
| CN106384481A (en) * | 2016-11-01 | 2017-02-08 | 西安培华学院 | Remote Internet-based first-aid alarm device with fall posture judgment function |
| CN107432613A (en) * | 2017-07-24 | 2017-12-05 | 深圳市翰群医疗器材有限公司 | A kind of pliable pressure sensor mat and preparation method |
| CN108088592A (en) * | 2017-11-07 | 2018-05-29 | 浙江理工大学 | A kind of intelligence is wearable to fall down alarm monitoring system |
| CN108299728A (en) * | 2017-01-13 | 2018-07-20 | 中国人民大学 | A kind of flexible piezoelectric sensors and its special piezo-electricity composite material |
| CN109081931A (en) * | 2018-08-08 | 2018-12-25 | 重庆大学 | A kind of Electrostatic Absorption film of flexible expandable and preparation method thereof |
| KR20180136590A (en) * | 2017-05-28 | 2018-12-26 | 장성철 | A double floor having a structure for fixing a lower portion of an object to be installed |
| CN110288806A (en) * | 2019-07-29 | 2019-09-27 | 周子杰 | A kind of preventing injury from fall floor and preventing injury from fall method |
| CN111179547A (en) * | 2019-12-28 | 2020-05-19 | 同济大学 | Intelligent sensing system for indoor tumble and preparation and control method thereof |
| CN111260879A (en) * | 2020-01-18 | 2020-06-09 | 杨科 | Internet of things-based solitary old man management method |
| CN111538264A (en) * | 2020-04-03 | 2020-08-14 | 浙江大学城市学院 | Fall detection floor and method |
| CN211622414U (en) * | 2019-12-13 | 2020-10-02 | 珠海格力电器股份有限公司 | Intelligent floor and intelligent floor system |
| CN211857238U (en) * | 2020-04-03 | 2020-11-03 | 浙江大学城市学院 | Fall detection floor |
-
2020
- 2020-11-16 CN CN202011278201.XA patent/CN112442246A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320883A (en) * | 1986-07-14 | 1988-01-28 | Fujikura Ltd | Piezoelectric film and manufacture thereof |
| CN105552132A (en) * | 2016-02-04 | 2016-05-04 | 京东方科技集团股份有限公司 | Thin film transistor sensor and fabrication method thereof |
| CN106197772A (en) * | 2016-07-06 | 2016-12-07 | 无锡格菲电子薄膜科技有限公司 | A kind of pliable pressure sensor and preparation method thereof |
| CN106384481A (en) * | 2016-11-01 | 2017-02-08 | 西安培华学院 | Remote Internet-based first-aid alarm device with fall posture judgment function |
| CN108299728A (en) * | 2017-01-13 | 2018-07-20 | 中国人民大学 | A kind of flexible piezoelectric sensors and its special piezo-electricity composite material |
| KR20180136590A (en) * | 2017-05-28 | 2018-12-26 | 장성철 | A double floor having a structure for fixing a lower portion of an object to be installed |
| CN107432613A (en) * | 2017-07-24 | 2017-12-05 | 深圳市翰群医疗器材有限公司 | A kind of pliable pressure sensor mat and preparation method |
| CN108088592A (en) * | 2017-11-07 | 2018-05-29 | 浙江理工大学 | A kind of intelligence is wearable to fall down alarm monitoring system |
| CN109081931A (en) * | 2018-08-08 | 2018-12-25 | 重庆大学 | A kind of Electrostatic Absorption film of flexible expandable and preparation method thereof |
| CN110288806A (en) * | 2019-07-29 | 2019-09-27 | 周子杰 | A kind of preventing injury from fall floor and preventing injury from fall method |
| CN211622414U (en) * | 2019-12-13 | 2020-10-02 | 珠海格力电器股份有限公司 | Intelligent floor and intelligent floor system |
| CN111179547A (en) * | 2019-12-28 | 2020-05-19 | 同济大学 | Intelligent sensing system for indoor tumble and preparation and control method thereof |
| CN111260879A (en) * | 2020-01-18 | 2020-06-09 | 杨科 | Internet of things-based solitary old man management method |
| CN111538264A (en) * | 2020-04-03 | 2020-08-14 | 浙江大学城市学院 | Fall detection floor and method |
| CN211857238U (en) * | 2020-04-03 | 2020-11-03 | 浙江大学城市学院 | Fall detection floor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481683A (en) * | 2023-05-09 | 2023-07-25 | 山西大学 | Full-printing flexible pressure sensing array with micro-column structure and preparation method thereof |
| CN116481683B (en) * | 2023-05-09 | 2023-12-26 | 山西大学 | Full-printing flexible pressure sensing array with micro-column structure and preparation method thereof |
| CN117053937A (en) * | 2023-10-12 | 2023-11-14 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
| CN117053937B (en) * | 2023-10-12 | 2023-12-26 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
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