Wearable saliva sensor for carsickness detection

Abstract

The utility model relates to the technical field of carsickness detection devices, in particular to a wearable saliva sensor for carsickness detection, which is arranged on a safety belt and comprises a cloth-based PCB (printed circuit board), a telescopic rope and a single-time saliva detection device, the cloth-based PCB is fixedly mounted on the safety belt, two first leads are arranged in the telescopic rope, and two second leads are arranged in the single-time saliva detection device. The cloth-based PCB is provided with two first wires, the two first wires are both electrically connected with the cloth-based PCB, the single-time saliva detection device comprises a sodium ion fabric electrode, and the sodium ion fabric electrode is detachably and electrically connected with the two first wires, so that the single-time saliva detection device is connected with the telescopic rope, and saliva is reserved in the single-time saliva detection device; the single saliva detection device generates a voltage change signal according to the change of sodium ions in saliva, the signal is output to the cloth-based PCB through the telescopic rope and is processed, and then the single saliva detection device can be disassembled and discarded, so that whether a driver and passengers are carsickness or not is detected by utilizing the concentration of the sodium ions in the saliva; and the use is sanitary, comfortable and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motion sickness detection devices, and more particularly to a wearable saliva sensor for motion sickness detection. BACKGROUND

[0002] The existing motion sickness monitoring method is mainly a physiological index monitoring method, that is, by monitoring the physiological signals of the driver or passenger, it is indirectly judged whether the motion sickness reaction has occurred. Common physiological parameters include heart rate, skin electrical response, respiratory rate, skin temperature, etc. The physiological indicators can be detected in real time, continuously and accurately, but the user usually needs to wear special devices such as a heart rate monitor, a skin electrical response sensor, a respiratory monitor, etc., which is poor in comfort and convenience.

[0003] In addition, increased saliva secretion is a typical symptom during the development of motion sickness. During this period, the body's parasympathetic nervous system stimulates the secretion of sodium ions in saliva, thereby causing an increase in the concentration of sodium ions in saliva. Therefore, the real-time concentration of sodium ions in saliva can reflect the severity of motion sickness.

[0004] Therefore, there is a need to provide a wearable saliva sensor for motion sickness detection that uses sodium ion concentration in saliva to detect whether the driver or passenger is motion sickness, which is hygienic, comfortable and convenient. SUMMARY

[0005] The main purpose of the present application is to provide a wearable saliva sensor for motion sickness detection, which is arranged on a safety belt, wherein the wearable saliva sensor for motion sickness detection comprises a cloth-based PCB board, an extension cord and a single saliva detection device. The cloth-based PCB board is fixedly installed on the safety belt. The extension cord is provided with two first wires. Both of the first wires are electrically connected with the cloth-based PCB board. The single saliva detection device comprises a sodium ion fabric electrode. The sodium ion fabric electrode is detachably electrically connected with the two first wires. In use, the user only needs to connect the single saliva detection device with the extension cord and leave saliva in the single saliva detection device. Then the single saliva detection device will generate a voltage change signal according to the change of sodium ions in saliva. This signal is output to the cloth-based PCB board through the extension cord and is processed. Then the single saliva detection device can be detached and discarded. Compared with the prior art, the present application has the advantages of using sodium ion concentration in saliva to detect whether the driver or passenger is motion sickness, which is hygienic, comfortable and convenient.

[0006] Another object of the present application is to provide a wearable saliva sensor for motion sickness detection, wherein the single saliva detection device further comprises a saliva collection cotton ball located at an end of the sodium ion fabric electrode away from the first wire, and in use, the user holds the saliva collection cotton ball in the mouth so that saliva seeps into the saliva collection cotton ball and contacts the sodium ion fabric electrode.

[0007] To achieve the above at least one object, the present application provides a wearable saliva sensor for motion sickness detection arranged on a safety belt, wherein the wearable saliva sensor for motion sickness detection comprises:

[0008] a cloth-based PCB board fixedly installed on the safety belt; and

[0009] a telescopic rope provided with two first wires, both of which are electrically connected to the cloth-based PCB board; and

[0010] a single saliva detection device comprising a sodium ion fabric electrode, which is detachably electrically connected to the two first wires.

[0011] In one or more embodiments of the present application, the single saliva detection device further comprises a saliva collection cotton ball located at an end of the sodium ion fabric electrode away from the first wire.

[0012] In one or more embodiments of the present application, the single saliva detection device further comprises a saliva reaction cylinder, the sodium ion fabric electrode is arranged in the saliva reaction cylinder, and the saliva collection cotton ball is arranged at one end of the saliva reaction cylinder.

[0013] In one or more embodiments of the present application, the single saliva detection device further comprises a cotton strip, the cotton strip is arranged in the saliva reaction cylinder, and the sodium ion fabric electrode penetrates the cotton strip.

[0014] In one or more embodiments of the present application, the sodium ion fabric electrode further comprises a working electrode and a reference electrode.

[0015] In one or more embodiments of the present application, the single saliva detection device further comprises a first magnetic member and two second wires, one end of the first magnetic member has a groove, one end of the two second wires is respectively electrically connected with the working electrode and the reference electrode, the other end of the two second wires extends into the groove and passes through the first magnetic member, a second magnetic member is arranged on the telescopic rope, one end of the two first wires away from the cloth-based PCB board passes through the second magnetic member, the first wires and the second wires correspond to each other, when the first magnetic member and the second magnetic member are attracted, each first wire is electrically connected with the corresponding second wire.

[0016] In one or more embodiments of the present application, the base body of the working electrode and the reference electrode is cotton thread, and an aqueous polyurethane layer and a gallium oxide metal layer are coated outside each cotton thread, and the gallium oxide metal layer is located outside the aqueous polyurethane layer.

[0017] In one or more embodiments of the present application, one end of the reference electrode further has a first carbon paste ink layer and a silver chloride ink layer, and the first carbon paste ink layer is located between the silver chloride ink layer and the gallium oxide metal layer.

[0018] In one or more embodiments of the present application, one end of the working electrode has, from inside to outside, a second carbon paste ink layer, a chitosan and Prussian blue composite material layer, and a sodium ion selective membrane layer.

[0019] In the embodiments of the present application, the wearable saliva sensor for motion sickness detection is arranged on the safety belt, which comprises a cloth-based PCB board, a telescopic rope, and a single saliva detection device. The cloth-based PCB board is fixedly installed on the safety belt. The telescopic rope is provided with two first wires, and the two first wires are electrically connected with the cloth-based PCB board. The single saliva detection device comprises a sodium ion fabric electrode, which is detachably electrically connected with the two first wires. In use, the user only needs to connect the single saliva detection device with the telescopic rope, and leave saliva in the single saliva detection device. Then, the single saliva detection device will generate a voltage change signal according to the change of sodium ions in the saliva. This signal is output to the cloth-based PCB board through the telescopic rope and is processed. Then, the single saliva detection device can be detached and discarded. Compared with the prior art, the present application has the advantages of detecting whether the driver or passenger is motion sickness by using the sodium ion concentration in saliva, and being hygienic, comfortable and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] These and / or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings in which:

[0021] Figure 1Fig. 1 illustrates a structural schematic diagram of a wearable saliva sensor for motion sickness detection according to an embodiment of the present application;

[0022] Figure 2 Fig. 2 illustrates a structural schematic diagram of a single saliva detection device;

[0023] Figure 3 Fig. 3 illustrates an exploded view of a single saliva detection device;

[0024] Figure 4 Fig. 4 illustrates a structural schematic diagram at a telescopic cord. DETAILED DESCRIPTION

[0025] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but are merely used to enable a clear and complete understanding of the application by those skilled in the art. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purpose only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

[0026] It is understood that the term "one" should be construed to "at least one" or "one or more" unless explicitly indicated to the contrary, that is, in one embodiment, a number of one element can be one, while in another embodiment, the number of this element can be more than one. The term "number" shall mean zero or one, or more than one.

[0027] Although numerals such as "first", "second", or the like will be used in describing various components, those components are not limited thereby. The terms are used only to distinguish one component from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. The term "and / or" as used herein comprises any and all combinations of one or more of the associated listed items.

[0028] The terms used herein are merely used to describe various embodiments and are not intended to limit the application. As used herein, the singular form is intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "has," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or a combination thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0029] A wearable saliva sensor for motion sickness detection is schematically illustrated in Fig. 1, and a single saliva detection device is schematically illustrated in Fig. 2. Figures 1 to 4 According to a preferred embodiment of the present application, a wearable saliva sensor for motion sickness detection is provided on a safety belt 10 of a passenger vehicle.

[0030] Further, as shown in Fig. 3, the single saliva detection device includes a saliva collection device 20, a saliva detection device 30, and a telescopic cord 40. Figure 1As shown, the wearable saliva sensor for motion sickness detection comprises a cloth-based PCB board 20, an elastic cord 30 and a single saliva detection device 40.

[0031] Specifically, as shown in the figure, the cloth-based PCB board 20 is fixedly installed on the safety belt 10 by means of adhesion or needle stitching, etc., the elastic cord 30 is internally provided with two first wires 301, both of which are electrically connected with the cloth-based PCB board 20, and the single saliva detection device 40 comprises a sodium ion fabric electrode 401, which is detachably electrically connected with the two first wires 301. Figure 1

[0032] It should be noted that the elastic cord 30 is normally in a contracted state, and when the driver or passenger feels uncomfortable, he / she can pull out the elastic cord 30 and then wrap saliva on the sodium ion fabric electrode 401, so that the sodium ion fabric electrode 401 will generate a voltage change according to the sodium ion concentration in the saliva, and this voltage change signal is output to the cloth-based PCB board 20 along the first wires 301, and then the cloth-based PCB board 20 collects, processes and analyzes the electrode signal and outputs a result to an external display device, so that the driver or passenger can more intuitively judge the current degree of motion sickness in the early stage of the motion sickness symptoms and timely intervene by means of drugs, etc. It should be further noted that the sodium ion fabric electrode 401 is disposable, and by detachably electrically connecting the sodium ion fabric electrode 401 with the two first wires 301, each person can use an independent and hygienic sodium ion fabric electrode 401 for saliva testing. When in use, the sodium ion fabric electrode 401 is electrically connected with the first wires 301, and after use, the sodium ion fabric electrode 401 is only needed to be separated from the first wires 301 and discarded, so that the sensor does not need to be cleaned or disinfected, and the whole detection process is more hygienic, comfortable and convenient.

[0033] Further, in order to facilitate the driver or passenger to place saliva on the sodium ion fabric electrode 401, as shown in the figure, the single saliva detection device 40 further comprises a saliva collection cotton ball 402, which is located at one end of the sodium ion fabric electrode 401 away from the first wires 301. Figures 1 to 3

[0034] It should be noted that in use, the user only needs to stretch the saliva collection cotton ball 402 into the oral cavity and lick it, and then saliva will seep into the saliva collection cotton ball 402 and gradually flow onto the sodium ion fabric electrode 401.

[0035] Further, in order to avoid saliva from contacting the outside world too much and to make saliva flow to the sodium ion fabric electrode 401, as shown in the figure, the single saliva detection device 40 further comprises a saliva collection cotton ball 402, which is located at one end of the sodium ion fabric electrode 401 away from the first wires 301.​​Figures 1 to 3 As shown in the figure, the single saliva detection device 40 further comprises a saliva reaction cylinder 403, the sodium ion fabric electrode 401 is arranged in the saliva reaction cylinder 403, and the saliva collection cotton ball 402 is arranged at one end of the saliva reaction cylinder 403. More specifically, the saliva collection cotton ball 402 has an insertion hole 4021 near one end of the saliva reaction cylinder 403, and one end of the saliva reaction cylinder 403 is inserted into the insertion hole 4021.

[0036] It should be noted that after the saliva flows to the bottom of the saliva collection cotton ball 402, it flows into the saliva reaction cylinder 403 and contacts the sodium ion fabric electrode 401 in the saliva reaction cylinder 403; it should also be noted that the inner diameter of the saliva reaction cylinder 403 is preferably 1.5 mm, the length is preferably 3 cm, and the material is preferably polydimethylsiloxane.

[0037] Further, in order to prevent the saliva from splashing radially in the saliva reaction cylinder 403 during the driving of the vehicle, as shown in the figure, Figure 2 The single saliva detection device 40 further comprises a cotton strip 404 arranged in the saliva reaction cylinder 403, and the sodium ion fabric electrode 401 penetrates the cotton strip 404.

[0038] It should be noted that after the saliva flows into the saliva reaction cylinder 403, it seeps into the cotton strip 404 and is gradually permeated onto the sodium ion fabric electrode 401.

[0039] Further, in the embodiment of the present application, as shown in the figure, Figure 3 The sodium ion fabric electrode 401 further comprises a working electrode 4011 and a reference electrode 4012.

[0040] Specifically, the working electrode 4011 and the reference electrode 4012 are both based on cotton threads, and each of the cotton threads is coated with an aqueous polyurethane layer and a gallium oxide metal layer, and the gallium oxide metal layer is located outside the aqueous polyurethane layer (not marked in the figure).

[0041] It should be noted that the diameter of the working electrode 4011 and the reference electrode 4012 is preferably 0.5 cm, and the length is preferably 2 cm; the two cotton threads are completely immersed in the aqueous polyurethane and gallium oxide metal liquid in turn, and then dried to achieve that the cotton threads are coated with the aqueous polyurethane layer and the gallium oxide metal layer, and it should be added that the coating of the aqueous polyurethane provides good adhesion for further application of other electrode materials, and the coating of the gallium oxide metal layer helps to enhance the conductivity of the two cotton threads.

[0042] In addition, the reference electrode 4012 has a first carbon paste ink layer and a silver chloride ink layer (not shown in the figure) near one end of the saliva collection cotton ball 402, and the first carbon paste ink layer is between the silver chloride ink layer and the gallium oxide metal layer.

[0043] It should be noted that the reference electrode 4012 is obtained by sequentially immersing one end of a cotton thread coated with the gallium oxide metal layer in carbon paste ink and silver chloride ink, and drying it.

[0044] In addition, the working electrode 4011 has a second carbon paste ink layer, a chitosan or Prussian blue composite material layer, and a sodium ion selective membrane layer (not shown in the figure) near one end of the saliva collection cotton ball 402.

[0045] It should be noted that the working electrode 4011 is obtained by immersing one end of another cotton thread coated with the gallium oxide metal layer in carbon paste ink, drying it to obtain a cotton thread with a second carbon paste ink layer, and then dropping a suspension of the chitosan and Prussian blue composite material layer on one end of the cotton thread with the gallium oxide layer and immersing it in a fresh sodium ion selective membrane solution to make the working electrode 4011. When the working electrode 4011 detects saliva, a voltage change will occur according to the sodium ion concentration in the saliva.

[0046] Further, to realize the quick connection of the sodium ion fabric electrode 401 and the first lead wire 301, as shown in Figures 1 to 4 The single saliva detection device 40 also includes a first magnetic member 405 and two second lead wires 406, one end of the first magnetic member 405 has a groove (not shown in the figure), one end of the two second lead wires 406 is respectively electrically connected to the working electrode 4011 and the reference electrode 4012, the other end of the two second lead wires 406 extends into the groove and passes through the first magnetic member 405, the elastic cord 30 is provided with a second magnetic member 302, and one end of the first lead wire 301 away from the cloth-based PCB board 20 passes through the second magnetic member 302. The first lead wire 301 corresponds to the second lead wire 406 one by one, and when the first magnetic member 405 and the second magnetic member 302 are attracted, each first lead wire 301 is electrically connected to the corresponding second lead wire 406.

[0047] It should be noted that in the embodiments of the present application, as shown in Figures 2 to 4As shown, the first magnetic member 405 has a protrusion 4051 at one end thereof away from the groove, the second magnetic member 302 has a recess 3021, one end of the second wire 406 is slightly higher than the top surface of the protrusion 4051, and one end of the first wire 301 is slightly lower than the bottom wall of the recess 3021. When the protrusion 4051 extends into the recess 3021 and the top surface of the protrusion 4051 abuts against the bottom wall of the recess 3021, the first wire 301 abuts against the second wire 406, thereby achieving the transmission of the electrical signal. It should be noted that the single saliva detection device 40 is a disposable product, and the single saliva detection device is connected to the second magnetic member 302 during use.

[0048] Further, as shown in Figure 1 and Figure 4 As shown, the wearable saliva sensor for motion sickness detection further comprises a telescopic shell 303, a rotating shaft, and a spring (not labeled in the figure). The telescopic shell 303 is fixedly connected to the cloth-based PCB 20 by adhesion or needle stitching. The rotating shaft is rotatably installed in the telescopic shell 303. The spring and the telescopic rope 30 are both wound on the rotating shaft. One end of the spring is fixedly connected to the rotating shaft, and the other end of the spring is fixedly connected to the telescopic shell 303. One end of the telescopic rope 30 is fixedly connected to the rotating shaft, and the other end of the telescopic rope 30 extends out of the telescopic shell 303 and is fixedly connected to the second magnetic member 302. The above-mentioned fixed connection modes include but are not limited to welding. When the telescopic rope 30 is pulled out, the rotating shaft rotates and the spring gradually tightens. When the telescopic rope 30 is loosened, the rotating shaft rotates in the opposite direction under the elastic force of the spring and resets the telescopic rope 30.

[0049] In summary, the wearable saliva sensor for motion sickness detection based on the embodiments of the present application is illustrated, which provides the wearable saliva sensor for motion sickness detection with the advantages of detecting whether the driver or passenger is motion sickness by using the sodium ion concentration in saliva, using hygienic, comfortable, and convenient, etc.

[0050] It is worth mentioning that, in the embodiments of the present application, the wearable saliva sensor for motion sickness detection has a simple structure and does not involve complex manufacturing processes and expensive materials, which has high economic efficiency. At the same time, for the manufacturers, the wearable saliva sensor for motion sickness detection provided by the present application is easy to produce and has low cost, which is more conducive to controlling the production cost and further conducive to the promotion and use of the product.

[0051] Those skilled in the art should understand that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can have any deformation or modification without departing from the principle.

Claims

1. A wearable saliva sensor for motion sickness detection, provided on a seat belt, characterized in that: The wearable saliva sensor for motion sickness detection comprises a cloth-based PCB board fixedly installed on the safety belt; and a telescopic rope, which is provided with two first wires, both of which are electrically connected with the cloth-based PCB board; and a single saliva detection device, which comprises a sodium ion fabric electrode, which is detachably electrically connected with the two first wires.

2. The wearable salivary sensor for motion sickness detection of claim 1, wherein: The single saliva detection device further comprises a saliva collection cotton ball, which is located at an end of the sodium ion fabric electrode away from the first wires.

3. The wearable salivary sensor for motion sickness detection of claim 2, wherein: The single saliva detection device further comprises a saliva reaction cylinder, in which the sodium ion fabric electrode is arranged, and at one end of which the saliva collection cotton ball is arranged.

4. The wearable salivary sensor for motion sickness detection of claim 3, wherein: The single saliva detection device further comprises a cotton strip, which is arranged in the saliva reaction cylinder, and through which the sodium ion fabric electrode is arranged.

5. The wearable salivary sensor for motion sickness detection according to any one of claims 1-4, wherein: The sodium ion fabric electrode further comprises a working electrode and a reference electrode.

6. The wearable salivary sensor for motion sickness detection of claim 5, wherein: The single saliva detection device further comprises a first magnetic attraction member and two second wires, one end of the first magnetic attraction member is provided with a groove, one end of the two second wires is respectively electrically connected with the working electrode and the reference electrode, the other end of the two second wires extends into the groove and passes through the first magnetic attraction member, a second magnetic attraction member is arranged on the telescopic rope, one end of the two first wires away from the cloth-based PCB board passes through the second magnetic attraction member, the first wires and the second wires correspond to each other, when the first magnetic attraction member and the second magnetic attraction member are attracted, each first wire is electrically connected with the corresponding second wire.

7. The wearable salivary sensor for motion sickness detection of claim 5, wherein: The base bodies of the working electrode and the reference electrode are both cotton threads, and each cotton thread is coated with an aqueous polyurethane layer and a gallium oxide metal layer outside, and the gallium oxide metal layer is located outside the aqueous polyurethane layer.

8. The wearable salivary sensor for motion sickness detection of claim 7, wherein: One end of the reference electrode is further provided with a first carbon paste ink layer and a silver chloride ink layer, and the first carbon paste ink layer is located between the silver chloride ink layer and the gallium oxide metal layer.

9. The wearable salivary sensor for motion sickness detection of claim 7, wherein: One end of the working electrode is sequentially provided with a second carbon paste ink layer, a chitosan and prussian blue composite material layer, and a sodium ion selective membrane layer from inside to outside.

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