CN210055994U - Measuring device for human body surface bioelectric signal - Google Patents
Measuring device for human body surface bioelectric signal Download PDFInfo
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- CN210055994U CN210055994U CN201920591936.4U CN201920591936U CN210055994U CN 210055994 U CN210055994 U CN 210055994U CN 201920591936 U CN201920591936 U CN 201920591936U CN 210055994 U CN210055994 U CN 210055994U
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Abstract
The utility model provides a measuring device of human body surface bio-electricity signal, the device mainly includes: the device comprises a power supply, a touch detection chip, a power supply control chip, a body surface bioelectricity signal measurement chip and a communication chip. The touch detection chip is connected with the power control chip, the power control chip is connected with the touch detection chip, the body surface bioelectricity signal measurement chip and the communication chip, the body surface bioelectricity signal measurement chip is connected with the power control chip and the communication chip, and the communication chip is connected with the power control chip and the body surface bioelectricity signal measurement chip. The utility model discloses the device adopts independent switch and the body surface biological electricity signal measuring device of the obvious artificial control of needs to compare with prior art, more accords with the application scene that human body surface biological electricity signal gathered to give all kinds of body surface biological electricity signal measuring device more small-size, more succinct outward appearance, compare traditional scheme simultaneously, touch switch has advantages such as stable, reliable, the life-span is longer.
Description
Technical Field
The utility model relates to a biomedical engineering technical field especially relates to a measuring device of human body surface bio-electricity signal.
Background
Clinically, the common body surface bioelectric signals mainly include: the power switch in the conventional body surface bioelectricity signal measuring system adopts an independent switch module, and the change of the switch state needs obvious human intervention in use.
The body surface bioelectric signal measuring system in the prior art has the following disadvantages: in a body surface bioelectricity signal measuring system, the manual adjustment of the on-off state brings inconvenience to the use of the system, particularly, some old patients often forget to turn off the equipment after use, and the service life of the equipment is seriously influenced by the over-discharge of a battery; and the independent switch module is convenient and fast for human intervention, occupies a large space, and is not suitable for a body surface bioelectricity detection instrument with a small volume.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a measuring device of human body surface bio-electricity signal to overcome prior art's problem.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A device for measuring bioelectrical signals on a body surface of a human body, comprising: the device comprises a power supply, a touch detection chip, a power supply control chip, a body surface bioelectricity signal measurement chip and a communication chip;
the touch detection chip is used for being connected with the power supply control chip and the body surface bioelectricity signal measurement chip, collecting the bioelectricity signal of the body surface of the touch point after the body surface of the human body is touched, transmitting the bioelectricity signal to the body surface bioelectricity signal measurement chip and sending a power supply control signal to the power supply control chip;
the power supply control chip is used for being connected with the touch detection chip, the body surface bioelectricity signal measurement chip and the communication chip and controlling the power supply and the power off of the body surface bioelectricity signal measurement chip and the communication chip according to a power supply control signal or a power off control signal transmitted by the touch detection chip;
the body surface bioelectricity signal measuring chip is used for being connected with the touch detection chip, the power supply control chip and the communication chip, obtaining a body surface bioelectricity signal value according to the bioelectricity signal measurement transmitted by the touch detection chip and transmitting the body surface bioelectricity signal value to the communication chip;
the communication chip is used for being connected with the body surface bioelectricity signal measuring chip and outputting the body surface bioelectricity signal value to external equipment through a communication line;
the power supply is used for being connected with the touch detection chip, the power supply control chip, the body surface bioelectricity signal measurement chip and the communication chip and supplying power to all connected components.
Preferably, a delay circuit is arranged between the touch detection chip and the power control chip;
the touch detection chip is also used for sending a power-off control signal to the delay circuit after the touch point is separated from the human body;
the delay circuit is used for sending a power supply control signal to the power supply control chip when the time for separating the touch point from the human body is shorter than a set time threshold; and the power-off control circuit is used for sending a power-off control signal to the power control chip when the time for separating the touch point from the human body is not shorter than a set time threshold.
Preferably, the touch detection chip comprises a touch element and a body surface bioelectric signal element;
the touch element is used for comprising a touch point, and the touch point is contacted with the surface of the human body through an electrode;
the body surface bioelectrical signal element is used for detecting the change of capacitance distribution in the electrodes at the touch point to obtain a bioelectrical signal.
Preferably, the touch detection chip is connected with the body surface bioelectricity signal measuring chip through a PCB copper foil, and the bioelectricity signal at the touch point is transmitted to the body surface bioelectricity signal measuring chip through the PCB copper foil.
Preferably, the power control chip is an LDO power chip.
Preferably, the device further comprises a display terminal, wherein the display terminal is connected with the communication chip through a communication line and receives and displays the body surface bioelectricity signal value transmitted by the communication chip.
By the foregoing the embodiment of the utility model provides a technical scheme can see out, the utility model discloses the device adopts traditional switch and the body surface bio-electricity signal measuring device that needs obvious artificial intervention break-make to compare with prior art, more accords with the applied scene that human body surface bio-electricity signal gathered to give all kinds of body surface bio-electricity signal measuring device more small-size, more succinct outward appearance. Compared with the traditional scheme, the touch power switch has the advantages of stability, reliability, longer service life and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for measuring body surface bioelectric signals according to an embodiment of the present invention, and the accompanying drawings illustrate:
1 Power supply
2 touch detection chip
3 power control chip
4 body surface bioelectric signal measuring chip
5 communication chip
6 delay circuits.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are 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 "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In order to facilitate understanding of the embodiments of the present invention, the following description will be given by taking specific embodiments as examples with reference to the accompanying drawings.
The embodiment of the utility model provides a measuring device of human body surface bio-electricity signal, the device's structure is as shown in figure 1, include: the device comprises a power supply 1, a touch detection chip 2, a power supply control chip 3, a body surface bioelectricity signal measurement chip 4 and a communication chip 5.
And the touch detection chip 2 is used for being connected with the power control chip and the body surface bioelectricity signal measurement chip, detecting the contact condition of the touch point and the skin of the human body, converting the contact condition into a state signal and sending a power-on or power-off control signal to the power control chip 3.
The touch detection chip 2 comprises a touch element and a body surface bioelectricity signal element;
the touch element is used for comprising a touch point, and the touch point is contacted with the surface of the human body through an electrode;
the body surface bioelectrical signal element is used for detecting the change of capacitance distribution in the electrodes at the touch point to obtain a bioelectrical signal. After the human body surface is touched, the bioelectricity signal of the human body surface of the touch point is collected, transmitted to the body surface bioelectricity signal measuring chip and sent to the power supply control chip.
And the power control chip 3 is used for being connected with the touch detection chip 2 and the body surface bioelectricity signal measurement chip 4 and the communication chip 5, and controlling the power supply and the power outage of the body surface bioelectricity signal measurement chip 4 and the communication chip 5 according to the power-on or power-off control signal transmitted by the touch detection chip 2.
And the body surface bioelectricity signal measuring chip 4 is used for connecting the power control chip 3 and the communication chip 5, collecting the body surface bioelectricity signal value and transmitting the body surface bioelectricity signal value to the communication chip 5.
And the communication chip 5 is used for being connected with the body surface bioelectricity signal measuring chip 4 and outputting the body surface bioelectricity signal value to external equipment through a communication line.
And the power supply 1 is used for being connected with the touch detection chip 2, the power supply control chip 3, the body surface bioelectric signal measurement chip 4 and the communication chip 5 and supplying power to all connected parts.
When no human body contacts, the touch detection chip 2 does not acquire the change of the induction capacitance of the touch point relative to the initial value, the touch detection chip 2 transmits a power-off control signal to the power control chip 3, the power of the body surface bioelectricity signal measurement chip 4 and the power of the communication chip 5 are cut off, and the device is in a standby state; when the human body contacts, the sensing capacitance that touch point was gathered to touch detection chip 2 is for the initial value change, touch detection chip 2 transmits the circular telegram control signal to power control chip 3, so that power control chip 3 supplies power to body surface bioelectricity signal measuring chip 4 and communication chip 5, and at this moment, body surface bioelectricity signal measuring chip 4 transmits the body surface bioelectricity signal value that measures for communication chip 5, and communication chip 5 exports body surface bioelectricity signal value for external equipment through communication line.
In this embodiment, a delay circuit 6 is further connected between the touch detection chip 2 and the power control chip 3, and when the touch point is separated from the human body for a short time, the touch detection chip 2 sends a power-off signal to the delay circuit. When the delay circuit 6 judges that the separation time is shorter than a set time threshold (for example, 1s or 0.5s), the delay circuit 6 still enables the power supply control chip 3 to output power supply control signals to the body surface bioelectricity signal measurement chip 4 and the communication chip 5, so as to ensure the continuous normal operation of the body surface bioelectricity signal measurement; when the time delay circuit 6 judges that the separation time is not shorter than the set time threshold, the time delay circuit 6 enables the power supply control chip 3 to output a power-off control signal to the body surface bioelectricity signal measuring chip 4 and the communication chip 5.
The embodiment of the utility model provides an in, touch detection chip 2 is arranged in the change that detects the electric capacity distribution in the electrode of touch point department, judges the contact situation of touch point and human body according to the change of this electric capacity distribution. In some application scenarios, the touch element can be combined with the body surface bioelectricity signal acquisition electrode, so that the occupied area of the circuit is further reduced.
When different body surface bioelectric signals (such as electrocardio, electroencephalogram, myoelectricity, gastric electricity, electrooculogram and the like) are measured, the structure of the body surface bioelectric signal acquisition electrode is not different essentially, and only the number of the electrodes is divided. Generally, the touch detection chip 2 only needs one touch electrode, part of application scenes can be shared with the body surface bioelectricity signal acquisition electrode, and one electrode which is well attached to the body is selected.
The touch detection chip 2 is connected to the touch element through a Printed Circuit Board (PCB) copper foil.
It should be understood by those skilled in the art that the above-mentioned PCB connection method between the touch detection chip 2 and the touch element is only an example, and other existing or future connection methods, such as those applicable to the embodiments of the present invention, should be included in the scope of the present invention, and are herein incorporated by reference.
Aiming at different test items, the body surface bioelectricity signal measuring chips 4 are different, and are used for measuring an electrocardio-sensor and an electroencephalogram-sensor.
In this embodiment, the power control chip 3 may be implemented by an LDO (low dropout regulator) power chip.
The power supply voltage provided by the lithium battery is about 3.7V-4.2V, the working voltage of the common low-voltage chip is 3.3V, and the LDO power supply chip is used for reducing the voltage of the lithium battery to be within the voltage range of normal working of the chip. The LDO power supply chip has small voltage drop and relatively small volume, and can not be replaced by other power supply chips, such as a switching power supply and the like.
The body surface bioelectric signal measuring device further comprises a display terminal, wherein the display terminal is connected with the communication chip 5 through a communication line and receives and displays the body surface bioelectric signal value transmitted by the communication chip 5.
Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A device for measuring bioelectrical signals on the surface of a human body, comprising: the device comprises a power supply, a touch detection chip, a power supply control chip, a body surface bioelectricity signal measurement chip and a communication chip;
the touch detection chip is used for being connected with the power supply control chip and the body surface bioelectricity signal measurement chip, collecting the bioelectricity signal of the body surface of the touch point after the body surface of the human body is touched, transmitting the bioelectricity signal to the body surface bioelectricity signal measurement chip and sending a power supply control signal to the power supply control chip;
the power supply control chip is used for being connected with the touch detection chip, the body surface bioelectricity signal measurement chip and the communication chip and controlling the power supply and the power off of the body surface bioelectricity signal measurement chip and the communication chip according to a power supply control signal or a power off control signal transmitted by the touch detection chip;
the body surface bioelectricity signal measuring chip is used for being connected with the touch detection chip, the power supply control chip and the communication chip, obtaining a body surface bioelectricity signal value according to the bioelectricity signal measurement transmitted by the touch detection chip and transmitting the body surface bioelectricity signal value to the communication chip;
the communication chip is used for being connected with the body surface bioelectricity signal measuring chip and outputting the body surface bioelectricity signal value to external equipment through a communication line;
the power supply is used for being connected with the touch detection chip, the power supply control chip, the body surface bioelectricity signal measurement chip and the communication chip and supplying power to all connected components.
2. The device of claim 1, wherein a delay circuit is disposed between the touch detection chip and the power control chip;
the touch detection chip is also used for sending a power-off control signal to the delay circuit after the touch point is separated from the human body;
the delay circuit is used for sending a power supply control signal to the power supply control chip when the time for separating the touch point from the human body is shorter than a set time threshold; and the power-off control circuit is used for sending a power-off control signal to the power control chip when the time for separating the touch point from the human body is not shorter than a set time threshold.
3. The device of claim 2, wherein the touch detection chip comprises a touch element and a body surface bioelectrical signal element;
the touch element is used for comprising a touch point, and the touch point is contacted with the surface of the human body through an electrode;
the body surface bioelectrical signal element is used for detecting the change of capacitance distribution in the electrodes at the touch point to obtain a bioelectrical signal.
4. The device of claim 3, wherein the touch detection chip is connected to the body surface bioelectrical signal measurement chip via a PCB copper foil, and the bioelectrical signal at the touch point is transmitted to the body surface bioelectrical signal measurement chip via the PCB copper foil.
5. The apparatus of claim 4, wherein the power control chip is an LDO power chip.
6. The device according to any one of claims 1 to 5, further comprising a display terminal connected to the communication chip via a communication line for receiving and displaying the body surface bioelectric signal values transmitted from the communication chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591936.4U CN210055994U (en) | 2019-04-26 | 2019-04-26 | Measuring device for human body surface bioelectric signal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920591936.4U CN210055994U (en) | 2019-04-26 | 2019-04-26 | Measuring device for human body surface bioelectric signal |
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| CN210055994U true CN210055994U (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924950A (en) * | 2019-04-26 | 2019-06-25 | 北京柔云科技有限责任公司 | The measuring device of body surface bioelectrical signals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924950A (en) * | 2019-04-26 | 2019-06-25 | 北京柔云科技有限责任公司 | The measuring device of body surface bioelectrical signals |
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