CN207370707U - Body surface electric signals detection device and wearable device - Google Patents

Abstract

The utility model provides a kind of body surface electric signals detection device, for wearable device, the body surface electric signals detection device includes device body, the differential signal detector being arranged on inside device body, the first signal acquisition terminal for being arranged on device body side and/or upper surface and the secondary signal collection terminal for being arranged on device body bottom surface, first signal acquisition terminal and secondary signal collection terminal and the detection input mouth of differential signal detector connect, wherein, first signal acquisition terminal is made of multiple sides for being arranged on device body and/or upper surface and the first detecting electrode for being electrically connected to each other.The utility model additionally provides a kind of wearable device, which includes the body surface electric signals detection device on the face contacted with body.The utility model can be widely used for detecting electricity physiological signal in wearable device, and reliable health data, such as heart rate data are provided for user.

Description

Body surface electric signals detection device and wearable device

Technical field

The utility model is related to a kind of detection device more particularly to a kind of body surface electric signals detections for wearable device Device.

Background technology

During existing wearable device (such as wrist-watch) detection body surface electric signals, such as during measurement electrocardiosignal, generally need To be configured in detection device includes two detecting electrodes：One of detecting electrode configuration is in the upper surface of device body or side Face, the detecting electrode of upper surface or side is contacted with the first sites (such as right hand) during measurement；Another detecting electrode is matched somebody with somebody Put the detecting electrode of bottom surface and the second sites (such as left finesse) continuous contact at the bottom surface of device body, wearing.

Since body surface electric signals are extremely faint, the electrode-skin contact impedance of collection terminal is lower, more contributes to inhibit noise Electric potential signal is extracted, the contact area of electrode and skin is bigger during measurement, and electrode-skin contact impedance is lower；It is limited to wearable The function and structure of equipment, it is difficult to while in its bottom surface and upper surface (or side) while set the detection of monomer large area electric Pole, especially in the detecting electrode of the upper surface of device or side least convenient for setting monomer area larger.In addition, measurement process In, since wearer is typically in non-quiescent condition, arm it is micro- quiver, contact surface unbalance stress of the electrode with skin etc. all can Generate electrode-skin contact noise so that the signal quality of detection is bad.

Utility model content

In order to overcome the above problem, the utility model provides a kind of body surface electric signals detection device, is set for wearable It is standby, including device body, the differential signal detector being arranged on inside device body, be arranged on device body side and/or on First signal acquisition terminal on surface and the secondary signal collection terminal for being arranged on device body bottom surface, first signal acquisition terminal It is connected with secondary signal collection terminal with the detection input mouth of the differential signal detector, which is characterized in that first letter Number collection terminal is by multiple sides for being arranged on described device body and/or upper surface and the first detecting electrode structure for being electrically connected to each other Into.

In one embodiment, the quantity of first detecting electrode is two, three or four, and the secondary signal is adopted The second detecting electrode that collection end is arranged on device body bottom surface by one is formed.

Preferably, the quantity of first detecting electrode is two, when the upper surface of described device body is included in wearing With the parallel first direction by limbs are worn and the second direction vertical with first direction；Two the first detecting electrodes are along the first direction Scattering device the side of device body and/or upper surface or in a second direction scattering device the side of device body and/ Or upper surface.

Preferably, in one embodiment, the bottom surface of described device body is additionally provided with the ginseng being made of a reference electrode Signal end is examined, the reference signal end is connected with the reference signal port of the differential signal detector.

Preferably, in another embodiment, the upper surface of described device body or side are additionally provided with by one with reference to electricity The reference signal end that pole is formed, the reference signal end is connected with the reference signal port of the differential signal detector.

On the other hand, the utility model provides a kind of wearable device, and the wearable device is being contacted with body Include the body surface electric signals detection device on face.Preferably, which is wrist-watch, bracelet, bracelet or foot ring.

Body surface electric signals detection device provided by the utility model is used as the using the electrical connection of multiple first detecting electrodes One signal acquisition terminal, multiple first detecting electrodes contact simultaneously with the first sites during measurement, can increase electrode-skin and connect Contacting surface is accumulated, and improves the extractability of body surface electric signals.Further, by multiple detecting electrode scattering devices device upper table Face or side convenient for users to the first sites (such as more fingers of the right hand) in measurement while touch multiple inspections Electrode is surveyed, makes the contact area bigger of the first signal acquisition terminal and the first sites, the stress of contact surface evenly；Meanwhile Due to device upper surface or the scattering device of the detecting electrode of the first signal acquisition terminal of side, device in measurement process is avoided Tilting or inclination so that positioned at device bottom surface secondary signal collection terminal and the second sites effective contact area more Greatly, the stress of contact surface is also evenly；Moreover, the above-mentioned detecting electrode of scattering device, meets the operating habit of user, can subtract The arm of user trembles in light measurement process, reduces electrode-skin contact noise, improves the extraction energy of potential difference signal Power.The body surface potential detector of the utility model can be extensively with body electrical signals be detected, to use in wearable device Person provides reliable health data.

Description of the drawings

Fig. 1 is the utility model detection device and the connection diagram of wearable device；

Fig. 2 a are that a kind of electrode of embodiment of the utility model sets schematic diagram；

Fig. 2 b are that a kind of electrode of specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 2 c are that a kind of electrode of specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 2 d are that a kind of electrode of specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 2 e are that a kind of electrode of specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 2 f are that a kind of electrode of specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 3 a are that a kind of electrode of special specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 3 b are that a kind of electrode of special specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 3 c are that a kind of electrode of special specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 3 d are that a kind of electrode of special specific embodiment of Fig. 2 a sets schematic diagram；

Fig. 4 a are that the electrode of the another embodiment of the utility model sets schematic diagram；

Fig. 4 b are that a kind of electrode of specific embodiment of Fig. 4 a sets schematic diagram；

Fig. 4 c are that a kind of electrode of special specific embodiment of Fig. 4 a sets schematic diagram；

Fig. 5 a are that the electrode of the another embodiment of the utility model sets schematic diagram；

Fig. 5 b are that a kind of electrode of specific embodiment of Fig. 5 a sets schematic diagram；

Fig. 5 c are that a kind of electrode of special specific embodiment of Fig. 5 a sets schematic diagram.

Specific embodiment

Fig. 1 be the utility model body surface electric signals detection device and wearable device connection diagram, it is wearable to set Standby body surface electric signals detection device, processor module and the display module for including the utility model.The detection device includes letter Number acquisition module and differential signal detector module, wherein signal acquisition module are arranged on the outer surface of device body, difference letter Number detector module is arranged on the inside of device body.More specifically, signal acquisition module includes the first signal acquisition terminal, it is used for It is contacted with the first sites of user；Secondary signal collection terminal contacts for the second sites with user；And Optional reference signal end (also known as drive signal end), contacts for the 3rd sites with user, improves signal acquisition Common-mode rejection ratio.These three signal ends are connected respectively with the corresponding port of differential signal detector.The differential signal detector Can be for gathering the instrument difference amplifier of faint electricity physiological signal.The signal warp of differential signal detector module output Processor module is further processed, for example, noise reduction, amplify again after, extraction obtain characteristic physiological data (such as heart rate trend or Person's electrocardiogram), the display module carried by wearable device shows or by near field (such as bluetooth) communications to shifting Dynamic terminal, then data service center is transmitted to by mobile terminal for further handling, analysis and decision.

The signal acquisition module part of the utility model in the side of detection device and/or upper surface by setting multiple phases The first detecting electrode being mutually electrically connected sets secondary signal collection terminal as the first signal acquisition terminal and in detection device bottom surface, has Improve to effect the quality of data-signal.

Together referring to Fig. 2 a, Fig. 2 b, in one embodiment, set in the side of the device body of detection device 100 It, should as the first signal acquisition terminal 110 after the electrical connection of the two first detecting electrodes 111 there are two first detecting electrode 111 First signal acquisition terminal is used to contact with the first sites.In a similar embodiment, such as Fig. 2 c, two first inspections Survey upper surface and side that electrode 111 is separately positioned on the device body of detection device 100, two 111 electricity of the first detecting electrode The first signal acquisition terminal 110 is used as after connection；In another similar embodiment, such as Fig. 2 d, in the dress of detection device 100 The upper surface for putting body is set there are two the first detecting electrode 111, and the first signal is used as after two the first detecting electrode 111 electrical connections Collection terminal 110.For example, when the detection device 100 is worn on left finesse, which can be the right hand.Meanwhile it is examining The bottom surface for surveying device is provided with secondary signal collection terminal 120, and secondary signal collection terminal 120 can be by being arranged on the one of device bottom surface A second detecting electrode 121 is formed, for being contacted with the second sites, for example, when the detection device is worn on left finesse, it should Second sites can be left finesse.In a kind of measurement method, more of the first signal acquisition terminal 110 and the right hand can be allowed Finger contacts simultaneously, i.e. two the first detecting electrodes 111 of more fingers of the right hand while contact, and secondary signal collection terminal 120 contact with left finesse.In other embodiments, with reference to figure 2e and Fig. 2 f, the quantity of the first detecting electrode 111 can also be Three or four.Multiple first detecting electrodes 111 can be provided entirely in the upper surface of device body, can be provided entirely in dress The side of body is put, the upper surface and side of device body can also be arranged on simultaneously, it can be according to actual apparatus structure spirit The quantity living that first detecting electrode is set and position.It is sufficiently large in secondary signal collection terminal and the contact area of the second sites On the premise of, in the above manner, the first signal acquisition terminal 110 and the contact area of the first sites can be increased, extract Obtain higher-quality body surface electric signals.

It should be noted that in foregoing embodiments, the quantity for the second detecting electrode that bottom surface is set is one, according to reality The apparatus structure on border can also set multiple the second detecting electrodes being electrically connected to each other to form secondary signal acquisition in bottom surface End.

Together referring to Fig. 2 a and Fig. 3 a, in one embodiment, the upper surface of the device body of detection device 100 includes Wear when with the parallel first direction by limbs are worn and the second direction vertical with first direction；For example, it is when being worn limbs During wrist, first direction is parallel with forearm.Along the first direction, set in the side of device body there are two detecting electrode 111, this It is used for and the first body surface position as the first signal acquisition terminal 110, first signal acquisition terminal 110 after two detecting electrode electrical connections Put contact.For example, when the detection device is worn on left finesse, which can be the right hand.Meanwhile in detection device Bottom surface be provided with secondary signal collection terminal 120, secondary signal collection terminal 120 can be provided in one second of device bottom surface Detecting electrode 121 contacts for the second sites with limbs.For example, when the detection device is worn on left finesse, this second Sites can be left finesse.In other embodiments, also may be used referring to Fig. 3 b, Fig. 3 c and Fig. 3 d, two detecting electrodes 111 To be the upper surface for being arranged on device body along the first direction, the side of device body is arranged in a second direction or along Two directions are arranged on the upper surface of device body.Similarly, two detecting electrodes 111 can also be and set respectively along the first direction It is separately positioned in the upper surface of device body and side or in a second direction the upper surface and side of device body. In a kind of measurement method, the first signal acquisition terminal can be allowed to be contacted simultaneously with the thumb and forefinger of the right hand of user, i.e., Thumb and forefinger contact two detecting electrodes 111 respectively simultaneously, and secondary signal collection terminal 120 is contacted with left finesse.Pass through Aforesaid way can increase the contact area between the first detecting electrode and skin, reduce electrode-skin contact impedance, extraction Obtain higher-quality body surface electric signals；Meanwhile to set two detecting electrodes along the first direction or in a manner of second direction 111, meet the operating habit of user, trembling for the arm of user in measurement process can be mitigated, reduce electrode-skin and connect Touch noise；Moreover, when the first sites thumb and forefinger along the first direction or second direction with two first detection electricity When pole 111 contacts simultaneously, device is less likely to occur to tilt or tilt phenomenon, makes secondary signal collection terminal and the second sites Effective contact area bigger further improves the extraction quality of body surface electric signals.

Optionally, in one embodiment, referring to Fig. 4 a and Fig. 4 b, in the bottom surface of the device body of detection device 100 Reference electrode 131 can be provided with, as signal end 130 is referred to, is connected with the reference signal port of differential signal detector, with Just common mode inhibition capacity is further improved, obtains high s/n ratio.The reference signal end 130 is used to contact with the 3rd sites, For example, when the detection device is worn on left finesse, the 3rd sites can be left finesse different from the second sites Position.In a kind of measurement method, when device is worn on left finesse, the first signal acquisition terminal 110 and user's can be allowed The thumb and forefinger of the right hand contact simultaneously, i.e., right hand thumb and forefinger contact two detecting electrodes 111 simultaneously, and second believes Number collection terminal 120 and reference signal end 130 are contacted with left finesse.More preferably, the electrode setting side of complex chart 4a, Fig. 3 a to Fig. 3 d Formula, can be in the side of device body and/or upper surface along the first direction or second direction sets two the first detecting electrodes 111, while the second detecting electrode 121 and reference electrode 131 are set in the bottom of device；One of which as illustrated in fig. 4 c, along One direction sets the first detecting electrode 111 in the side of device body, while sets the second detecting electrode 121 in the bottom surface of device With reference electrode 131.By way of increasing and reference signal end 130 is set, common-mode rejection ratio can be further improved, is obtained more High signal-to-noise ratio.

Optionally, in another embodiment, referring to Fig. 5 a and Fig. 5 b, in the side of the device body of detection device 100 Face can set reference electrode 131, as signal end 130 is referred to, be connected with the reference signal port of differential signal detector, with Just common mode inhibition capacity is further improved, obtains high s/n ratio.It should be noted that reference electrode 131 can also be arranged on inspection Survey the upper surface of device 100.The reference signal end 130 with the 3rd sites for contacting, for example, the detection device is worn on During left finesse, the 3rd sites can be the position different from the first sites of the right hand：If the first sites are the right side Hand thumb, the 3rd sites can be other positions beyond right hand thumb；If the 3rd sites are Right hand thumb, the first sites are other positions beyond right hand thumb.It is preferred that with reference to figure 5a, Fig. 3 a to Fig. 3 d Electrode setting mode, can be in the upper surface of device body and/or side, along the first direction or second direction sets a ginseng Examine electrode 131 and two reference electrodes 111；One of which as shown in Figure 5 c, is set in the upper surface of device body in a second direction Put a reference electrode 131 and two reference electrodes 111.Reference signal end 130 and right hand thumb can be allowed, the first letter Two detecting electrodes 111 of number collection terminal contact simultaneously with other fingers beyond the right hand thumb of user, and the second letter Number collection terminal 120 is contacted with left finesse.By the above-mentioned means, the contact surface between the first detecting electrode and skin can be increased Product, reduces electrode-skin contact impedance, and extraction obtains higher-quality potential difference signal；Simultaneously as reference signal end is set It puts, moreover it is possible to further improve common-mode rejection ratio, obtain higher signal-to-noise ratio.

It should be further noted that it can effectively be contacted with the first sites, together meeting the first signal acquisition terminal When secondary signal collection terminal can effectively contact with the second sites, can have with reference to signal end with the 3rd sites Effect contact, and the distance of the first sites and the second sites meets single lead electrocardio on the premise of, it is each to implement The installation position of multiple first detecting electrodes of device body upper surface and/or side needs not be neat rule in scheme.

It is understood that set more first detecting electrodes 111 that can preferably complete body surface electrical signal collection work Make, still, in view of the size and process costs of detection device 100 itself, it may be considered that set two, three or four first Detecting electrode 111.

The upper surface and bottom surface of the utility model detection device are not limited to specific shape, can be close for what is shown in figure It is square, or circular, oval or other shapes.When the detection device of the utility model is used in wearable device When, bottom shell which contacts usually as wearable device with body surface.First signal acquisition terminal is generally arranged at Allow on the side wall upwardly extended by bottom or in wearable device shape, be arranged on the upper table of wearable device Face.

The detection device of the utility model be used in wearable device (such as include but not limited to wrist-watch, bracelet, bracelet and foot Ring) in when, wearable device can by differential signal detector export body surface electric signals data (such as electrocardiogram (ECG) data) send To mobile terminal, user can check data on mobile terminals, and mobile terminal can also be by the ECG Data Transmission Based of acquisition to number According to service centre, data service center is further processed analysis electrocardiogram (ECG) data, helps the potential for example cardiovascular disease of user's identification Disease helps patient monitoring such as angiocardiopathy.

It will be appreciated by those skilled in the art that the feature of embodiment disclosed herein can be combined, It rearranges etc. to generate other embodiments in the scope of the utility model, various other changes can also be carried out, omitted And addition, without departing from the spirit and scope of the utility model.

Claims (7)

1. a kind of body surface electric signals detection device for wearable device, including device body, is arranged on inside device body Differential signal detector, the first signal acquisition terminal for being arranged on device body side and/or upper surface and it is arranged on device sheet The secondary signal collection terminal of body bottom surface, first signal acquisition terminal and secondary signal collection terminal and the differential signal detector Detection input mouth connection, which is characterized in that

First signal acquisition terminal is by multiple sides for being arranged on described device body and/or upper surface and is electrically connected to each other First detecting electrode is formed.

2. body surface electric signals detection device according to claim 1, which is characterized in that the quantity of first detecting electrode For two, three or four, the second detecting electrode structure that the secondary signal collection terminal is arranged on device body bottom surface by one Into.

3. body surface electric signals detection device according to claim 2, which is characterized in that

The quantity of first detecting electrode is two, is put down when the upper surface of described device body is included in wearing with being worn limbs Capable first direction and the second direction vertical with first direction；Scattering device is filling two the first detecting electrodes along the first direction Put body side and/or upper surface or in a second direction scattering device in the side of device body and/or upper surface.

4. the body surface electric signals detection device according to Claims 2 or 3, which is characterized in that the bottom surface of described device body It is additionally provided with the reference signal end being made of a reference electrode, the reference signal end and the reference of the differential signal detector Signal port connects.

5. body surface electric signals detection device according to claim 2, which is characterized in that the upper surface of described device body or Side is additionally provided with the reference signal end being made of a reference electrode, the reference signal end and the differential signal detector Reference signal port connects.

6. a kind of wearable device, which is characterized in that the wearable device includes claim 1 on the face contacted with body To the body surface electric signals detection device any one of 5.

7. wearable device according to claim 6, which is characterized in that the wearable device for wrist-watch, bracelet, bracelet or Foot ring.