CN107088062B - Heart rate module, electronic device for collecting heart rate and heart rate collection method - Google Patents
Heart rate module, electronic device for collecting heart rate and heart rate collection method Download PDFInfo
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- CN107088062B CN107088062B CN201710318196.2A CN201710318196A CN107088062B CN 107088062 B CN107088062 B CN 107088062B CN 201710318196 A CN201710318196 A CN 201710318196A CN 107088062 B CN107088062 B CN 107088062B
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- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
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Abstract
The invention discloses a heart rate module, which comprises a heart rate circuit board, a processor chip, a heart rate sensor, an electromagnetic coil, a lens assembly and a guide rail, wherein the heart rate circuit board is connected with the processor chip; the processor chip is used for sending a voltage control signal for traversing the whole process; receiving heart rate measurement data, analyzing the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly; the electromagnetic coil is used for generating different electromagnetic forces according to the voltage control signals of the whole traversing process so as to drive the guide rail to traverse the whole measuring range of the electromagnetic coil; and generating corresponding electromagnetic force according to the voltage control signal corresponding to the optimal maintenance position of the lens assembly so as to drive the guide rail to be at the optimal maintenance position; and the heart rate sensor is used for acquiring heart rate measurement data in real time and sending the acquired heart rate measurement data to the processor chip. This scheme has promoted heart rate measuring accuracy.
Description
Technical Field
The invention relates to the field of computer control, in particular to a heart rate module, an electronic device for collecting heart rate and a heart rate collecting method.
Background
With the rapid development of intelligent consumer electronics, the more functional modules of the intelligent wearable product are made. Taking wrist products as an example, more and more new products are focusing on health functions. In particular, heart rate modules have been used in a number of products such as smart wristbands, smart watches, and the like.
At present, after the LED light is absorbed by a human body, the consumer electronic product for heart rate measurement mainly adopts a mode of measuring weak signals to obtain the signal variation of a heart beat gap, and the measuring mode mainly has the following three defects:
heart rate measurement has limitations, reflected waves are subject to external interference,
and secondly, in the dynamic measurement, the change of the clearance between the probe and the contact skin directly affects the measurement accuracy.
And (III) in static measurement, the measurement result is unstable due to the influence of skin color, hair density and the like of a user.
Disclosure of Invention
The invention provides a heart rate module, an electronic device for collecting heart rate and a heart rate collecting method, which are used for solving the problems of low measurement precision and poor user experience caused by the fact that the reflected wave of the existing heart rate collecting product is easily interfered by the outside, the change of the gap between the heart rate collecting product and the contact skin, the influence of skin color, hair concentration and the like of a user.
According to one aspect of the present invention, there is provided a heart rate module comprising a heart rate circuit board, a processor chip, a heart rate sensor, a solenoid, a lens assembly and a rail; the heart rate sensor is arranged on a heart rate circuit board, the guide rails are symmetrically arranged on two sides of the front end of the heart rate sensor, the lens assemblies are arranged between the guide rails, the electromagnetic coils are arranged around the guide rails, the guide rails are magnetic substances, and the processor chip is respectively and electrically connected with the electromagnetic coils and the heart rate sensor;
the processor chip is used for sending a voltage control signal for traversing the whole course to the electromagnetic coil; receiving heart rate measurement data acquired by the heart rate sensor, analyzing the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil;
the electromagnetic coil is used for generating different electromagnetic forces according to the voltage control signals of the whole traversing process of the processor chip so as to drive the guide rail to traverse the electromagnetic coil in the whole measuring range; and generating a corresponding electromagnetic force according to a voltage control signal of the processor chip corresponding to an optimal maintenance position of the lens assembly so as to drive the lens assembly to be in the optimal maintenance position;
the heart rate sensor is used for collecting heart rate measurement data in real time in the process that the guide rail traverses the electromagnetic coil full range motion, and sending the collected heart rate measurement data to the processor chip.
Preferably, the heart rate module further comprises an LED lamp and an LED lamp driving circuit, wherein the LED lamp is arranged on the heart rate circuit board, the processor chip is electrically connected with the LED lamp driving circuit, and the LED lamp driving circuit is electrically connected with the LED lamp;
the processor chip is further configured to receive heart rate measurement data collected by the heart rate sensor after sending a voltage control signal corresponding to an optimal maintenance position of the lens assembly to the electromagnetic coil, compare the received heart rate measurement data with a preset measurement threshold, and send a voltage control signal for increasing the emission power to the LED lamp driving circuit if the received heart rate measurement data is smaller than the preset measurement threshold;
the LED lamp driving circuit is used for adjusting the transmitting power of the LED lamp according to the voltage control signal of the processor chip.
According to another aspect of the present invention, there is provided an electronic device for acquiring heart rate, the electronic device including a housing, a main control board, and the heart rate module described above; the heart rate module is arranged on the lower surface of the shell, a light hole is formed in the shell corresponding to the position of the heart rate module, and a processor chip of the heart rate module is arranged on the main control board.
According to another aspect of the present invention, there is provided a heart rate acquisition method, the method comprising:
guide rails are symmetrically arranged on two sides of the front end of the heart rate sensor, lens components are arranged between the guide rails, and electromagnetic coils are arranged around the guide rails;
transmitting a voltage control signal for traversing the whole range to the electromagnetic coil, and controlling the electromagnetic coil to generate different electromagnetic forces so as to drive a guide rail to traverse the whole range of the electromagnetic coil;
acquiring a plurality of heart rate measurement data acquired by the heart rate sensor in real time in the process that the guide rail traverses the electromagnetic coil in full-range motion;
and according to the heart rate measurement data, analyzing an optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil so as to drive the lens assembly to be at the optimal maintenance position.
The beneficial effects of the invention are as follows: the technical scheme of the invention designs a heart rate module which comprises a heart rate circuit board, a processor chip, a heart rate sensor, an electromagnetic coil, a lens assembly and a guide rail; firstly, the guide rails are symmetrically arranged at two sides of the front end of the heart rate sensor, the lens components are arranged between the guide rails, and the guide rails are magnetic substances, so that the collected heart rate signals can reach the heart rate sensor only after passing through the lens components, and the aim of adjusting the signal intensity received by the heart rate sensor can be fulfilled as long as the positions of the guide rails are controlled;
in addition, the heart rate sensor is arranged on the heart rate circuit board, the electromagnetic coil is arranged around the guide rail, and the processor chip is respectively and electrically connected with the electromagnetic coil and the heart rate sensor; the processor chip sends a voltage control signal for the whole traversing process to the electromagnetic coil, so that the electromagnetic coil can generate different electromagnetic forces according to the voltage control signal for the whole traversing process of the processor chip, the driving guide rail traverses the whole measuring range of the electromagnetic coil, and the heart rate sensor can acquire the heart rate signal intensity of the lens component at any position of the electromagnetic coil;
meanwhile, the heart rate sensor acquires heart rate measurement data in real time in the whole course of traversing the lens assembly on the guide rail, and sends the acquired heart rate measurement data to the processor chip; the processor chip receives heart rate measurement data acquired by the heart rate sensor, analyzes the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sends a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil; the electromagnetic coil generates corresponding electromagnetic force according to a voltage control signal of the processor chip, which corresponds to the optimal maintenance position of the lens component, so that the lens component is driven to be in the optimal maintenance position, and the heart rate signal received by the heart rate sensor is optimal.
Preferably, the heart rate module further comprises an LED lamp and an LED lamp driving circuit which are arranged on a heart rate circuit board, wherein the heart rate circuit board plays a supporting role; the LED lamp driving circuit is electrically connected with the processor chip, and the LED lamp driving circuit is electrically connected with the LED lamp, so that the LED lamp driving circuit can adjust the transmitting power of the LED lamp according to the control signal of the processor chip, and then the LED lamp driving circuit is matched with the electromagnetic coil to drive the lens assembly to move on the guide rail, so that the signal intensity received by the heart rate sensor is optimal. Especially when the skin color of the user is darker or the hair is thicker, the signal intensity received by the heart rate sensor can be obviously attenuated, the requirements of different users can be met by adjusting the transmitting power of the LED lamp, the testing precision of the heart rate module is ensured, and the practicability of the invention is improved.
Drawings
FIG. 1 is a schematic diagram of a heart rate module according to an embodiment of the invention;
FIG. 2 is a schematic diagram of another heart rate module according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an electronic device for acquiring heart rate according to an embodiment of the present invention;
fig. 4 is a flow chart of a heart rate acquisition method according to an embodiment of the invention.
Detailed Description
The design concept of the invention is as follows: in order to optimize the heart rate signal received by the heart rate sensor, a guide rail, an electromagnetic coil and a lens assembly are added in front of the existing heart rate sensor, the electromagnetic coil drives the guide rail to traverse full-range motion, and the heart rate sensor acquires heart rate measurement data in real time; the processor chip analyzes the optimal maintenance position corresponding to the lens component when the heart rate measurement value is maximum according to the heart rate measurement data, and sends a control instruction to the electromagnetic coil; the solenoid drives the lens assembly in the optimal maintenance position.
Example 1
FIG. 1 is a schematic diagram of a heart rate module according to an embodiment of the present invention, as shown in FIG. 1, the heart rate module includes a heart rate circuit board 101, a processor chip 102, a heart rate sensor 103, a solenoid 104, a lens assembly 105, and a guide rail 106; the heart rate sensor 103 is arranged on the heart rate circuit board 101, the guide rails 106 are symmetrically arranged on two sides of the front end of the heart rate sensor 103, the lens component 105 is arranged between the guide rails 106, the electromagnetic coil 104 is arranged around the guide rails 106, the guide rails are magnetic substances, and the processor chip 102 is respectively and electrically connected with the electromagnetic coil and the heart rate sensor. The processor chip 102 is connected to the electromagnetic coil 104 via a conductive wire 107. The lens assembly 105 is one or more; when the lens assemblies 105 are multiple, each lens assembly 105 is arranged between the guide rails according to a certain distance; the relative distance between the lens assemblies 105 is constant throughout the full motion of the solenoid driven guide rail.
In one embodiment of the present invention, the magnetic coils are disposed around each guide rail, which means that the magnetic coils may be wound around the guide rail or located at one side of the guide rail, and in practical application, the positional relationship between the magnetic coils and the guide rail may be determined according to practical needs.
The processor chip 102 is configured to send a voltage control signal for traversing the whole process to the electromagnetic coil 104; receiving heart rate measurement data acquired by the heart rate sensor 103, analyzing an optimal maintenance position corresponding to the lens assembly 105 when the heart rate measurement value is maximum from the received heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly 105 to the electromagnetic coil 104;
the electromagnetic coil 104 is configured to generate different electromagnetic forces according to the voltage control signal of the processor chip 102 in the whole traversing process, so as to drive the guide rail 106 to traverse the electromagnetic coil 104 in the whole measuring range; and for generating a corresponding electromagnetic force according to a voltage control signal of the processor chip 102 corresponding to an optimal maintenance position of the lens assembly 105 to drive the lens assembly 105 in the optimal maintenance position;
the heart rate sensor 103 is configured to collect heart rate measurement data in real time during the full range motion process of the guide rail 106 traversing the electromagnetic coil 104, and send the collected heart rate measurement data to the processor chip 102.
As can be seen from the heart rate module shown in fig. 1, the technical scheme of the invention designs a heart rate module, which comprises a heart rate circuit board, a processor chip, a heart rate sensor, an electromagnetic coil, a lens assembly and a guide rail; firstly, the guide rails are symmetrically arranged at two sides of the front end of the heart rate sensor, the lens components are arranged between the guide rails, and the guide rails are magnetic substances, so that the collected heart rate signals can reach the heart rate sensor only after passing through the lens components, and the aim of adjusting the signal intensity received by the heart rate sensor can be fulfilled as long as the positions of the guide rails are controlled;
in addition, the heart rate sensor is arranged on the heart rate circuit board, the electromagnetic coil is arranged around the guide rail, and the processor chip is respectively and electrically connected with the electromagnetic coil and the heart rate sensor; the processor chip sends a voltage control signal for the whole traversing process to the electromagnetic coil, so that the electromagnetic coil can generate different electromagnetic forces according to the voltage control signal for the whole traversing process of the processor chip, the driving guide rail traverses the whole measuring range of the electromagnetic coil, and the heart rate sensor can acquire the heart rate signal intensity of the lens component at any position of the electromagnetic coil;
meanwhile, the heart rate sensor acquires heart rate measurement data in real time in the whole course of traversing the lens assembly on the guide rail, and sends the acquired heart rate measurement data to the processor chip; the processor chip receives heart rate measurement data acquired by the heart rate sensor, analyzes the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sends a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil; the electromagnetic coil generates corresponding electromagnetic force according to a voltage control signal of the processor chip, which corresponds to the optimal maintenance position of the lens component, so that the lens component is driven to be in the optimal maintenance position, and the heart rate signal received by the heart rate sensor is optimal.
In one embodiment of the present invention, in order to improve the acquisition accuracy of the heart rate module, the heart rate module further includes an infrared filter 108, where the infrared filter 108 is disposed at the front end of the heart rate sensor 103;
an infrared filter 108 for filtering infrared interference from external signals.
In one embodiment of the present invention, the heart rate module further includes an LED lamp 109 and an LED lamp driving circuit 110 disposed on the heart rate circuit board, the processor chip 102 is electrically connected to the LED lamp driving circuit 110, and the LED lamp driving circuit 110 is electrically connected to the LED lamp 109;
the processor chip 102 is further configured to receive heart rate measurement data collected by the heart rate sensor 103 after sending a voltage control signal corresponding to an optimal maintenance position of the lens assembly 105 to the electromagnetic coil 104, compare the received heart rate measurement data with a preset measurement threshold, and if the received heart rate measurement data is smaller than the preset measurement threshold, send a voltage control signal for increasing the emission power to the LED lamp driving circuit 110;
the LED lamp driving circuit 110 is configured to adjust the emission power of the LED lamp 109 according to the voltage control signal of the processor chip 102.
As can be seen from the heart rate module shown in fig. 2, the heart rate module further includes an LED lamp and an LED lamp driving circuit, wherein the LED lamp is disposed on a heart rate circuit board, and the heart rate circuit board plays a supporting role; the LED lamp driving circuit is electrically connected with the processor chip, and the LED lamp driving circuit is electrically connected with the LED lamp, so that the LED lamp driving circuit can adjust the transmitting power of the LED lamp according to the control signal of the processor chip, and then the LED lamp driving circuit is matched with the electromagnetic coil to drive the lens assembly to move on the guide rail, so that the signal intensity received by the heart rate sensor is optimal. Especially when the skin color of the user is darker or the hair is thicker, the signal intensity received by the heart rate sensor can be obviously attenuated, the requirements of different users can be met by adjusting the transmitting power of the LED lamp, the testing precision of the heart rate module is ensured, and the practicability of the invention is improved.
In one embodiment of the present invention, the number of the LED lamps 109 is plural, and each LED lamp 109 is configured with a separate LED lamp driving circuit 110; that is to say that each LED lamp is independently controllable.
The plurality of LED lamps 109 are symmetrically arranged around the heart rate sensor 103.
For example, when the number of the LED lamps 109 is one, it is provided at one side of the heart rate sensor 103 at a preset distance;
when the number of the LED lamps 109 is two, the LED lamps are symmetrically arranged on two sides of the heart rate sensor 103 by taking the heart rate sensor 103 as a center according to a preset distance;
when the number of the LED lamps 109 is three, the LED lamps are arranged at the positions where the vertexes of the regular triangle centering on the heart rate sensor 103 are located according to the preset distance;
when the number of the LED lamps 109 is plural, the LED lamps are arranged at positions where the vertices of a regular polygon centering on the heart rate sensor 103 are located at preset distances. The purpose of the LED lamp 109 being symmetrically arranged with the heart rate sensor 103 as the center is to equalize the light received by the lens assembly, which is beneficial to improving the accuracy of heart rate signal acquisition.
In one embodiment of the invention, the LED lamp is a green LED lamp. In practical application, the type and model of the LED lamp can be selected according to actual needs.
Example two
Fig. 3 is a schematic structural diagram of an electronic device for collecting heart rate according to an embodiment of the present invention, as shown in fig. 3, the electronic device for collecting heart rate includes a housing 201, a main control board 202, and the heart rate module 100 described above; the heart rate module 100 is disposed on the lower surface of the housing 201, a light hole is formed in the housing 201 corresponding to the position of the heart rate module 100, and the processor chip 102 of the heart rate module 100 is disposed on the main control board 202. It should be noted that, the positions of the lens assemblies 105 and the positions of the LED lamps 109 are provided with light holes, so that the heart rate module 100 can work normally. The processor chip 102 of the heart rate module 100 is arranged on the main control board 202, that is to say, in the electronic device for collecting heart rate, the main control board 202 is a core control board, and the heart rate module is controlled to operate by the main control board 202, so that accurate collection of heart rate data is realized. Specifically, the main control board 202 is configured to send a voltage control signal for traversing the whole course to the electromagnetic coil 104; receiving heart rate measurement data acquired by the heart rate sensor 103, analyzing an optimal maintenance position corresponding to the lens assembly 105 when the heart rate measurement value is maximum from the received heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly 105 to the electromagnetic coil 104; and is further configured to receive heart rate measurement data collected by the heart rate sensor 103 after sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly 105 to the electromagnetic coil 104, compare the received heart rate measurement data with a preset measurement threshold, and if the received heart rate measurement data is smaller than the preset measurement threshold, send a voltage control signal for increasing the emission power to the LED lamp driving circuit 110.
It should be noted that, the electronic device may be a wearable product such as a smart wristband and a smart watch.
To enhance the utility of the present invention, in one embodiment of the present invention, the electronic device further comprises a display 203 and a battery 204; the display screen 203 is arranged on the upper surface of the shell 201, and the battery 204 is arranged between the main control panel 202 and the heart rate module 100; i.e. between the main control board 202 and the heart rate circuit board 101.
The display screen 203 is configured to display measurement data and time information related to the heart rate;
the battery 204 is configured to supply power to the display 203, the main control board 202, and the heart rate module 100.
Example III
Fig. 4 is a flow chart of a heart rate acquisition method according to an embodiment of the invention, as shown in fig. 4,
in step S310, guide rails are symmetrically arranged at both sides of the front end of the heart rate sensor, a lens assembly is arranged between the guide rails, and an electromagnetic coil is arranged around the guide rails;
in step S320, a voltage control signal for traversing the whole range is sent to the electromagnetic coil, so as to control the electromagnetic coil to generate different electromagnetic forces, so as to drive the guide rail to traverse the electromagnetic coil in the whole range;
in step S330, during the full-range motion process of the guide rail traversing the electromagnetic coil, acquiring a plurality of heart rate measurement data acquired by the heart rate sensor in real time;
in step S340, an optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum is analyzed according to the plurality of heart rate measurement data, and a voltage control signal corresponding to the optimal maintenance position of the lens assembly is sent to the electromagnetic coil, so as to drive the lens assembly to be at the optimal maintenance position.
According to the schematic diagram of the method shown in fig. 4, first, guide rails are symmetrically arranged at two sides of the front end of the heart rate sensor, and lens assemblies are arranged between the guide rails, so that the collected heart rate signals can reach the heart rate sensor only after passing through the lens assemblies, and the purpose of adjusting the intensity of signals received by the heart rate sensor can be achieved by controlling the positions of the guide rails;
in addition, an electromagnetic coil is arranged around the guide rail, a voltage control signal for traversing the whole course is sent to the electromagnetic coil, the electromagnetic coil is controlled to generate different electromagnetic forces, the guide rail is driven to traverse the whole range of the electromagnetic coil, and the heart rate sensor is ensured to acquire the heart rate signal intensity of the lens component at any position of the guide rail;
meanwhile, in the whole range motion process of traversing the electromagnetic coil through the guide rail, acquiring a plurality of heart rate measurement data acquired by the heart rate sensor in real time, analyzing an optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum according to the plurality of heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil so as to drive the lens assembly to be in the optimal maintenance position, so that the heart rate signal received by the heart rate sensor is optimal.
In one embodiment of the present invention, to improve the acquisition accuracy of the heart rate module, the method further includes:
an infrared filter is arranged at the front end of the heart rate sensor, and infrared interference from external signals is filtered through the infrared filter.
In one embodiment of the invention, the method further comprises:
one or more LED lamps are arranged around the heart rate sensor;
acquiring heart rate measurement data acquired by the heart rate sensor after sending a voltage control signal to the electromagnetic coil corresponding to an optimal maintenance position of the lens assembly;
and comparing the heart rate measurement data with a preset measurement threshold, and if the heart rate measurement data is smaller than the preset measurement threshold, increasing the emission power of the LED lamp.
Therefore, when the heart rate measurement data is lower than the preset measurement threshold value, the emission power of the LED lamp is increased, and the electromagnetic coil is matched to drive the lens assembly to move on the guide rail, so that the signal intensity received by the heart rate sensor is optimal. Especially when the skin color of the user is darker or the hair is thicker, the signal intensity received by the heart rate sensor can be obviously attenuated, the requirements of different users can be met by adjusting the transmitting power of the LED lamp, the testing precision of the heart rate module is ensured, and the practicability of the invention is improved.
In summary, the technical scheme of the invention designs a heart rate module, which comprises a heart rate circuit board, a processor chip, a heart rate sensor, an electromagnetic coil, a lens assembly and a guide rail; firstly, the guide rails are symmetrically arranged at two sides of the front end of the heart rate sensor, the lens components are arranged between the guide rails, and the guide rails are magnetic substances, so that the collected heart rate signals can reach the heart rate sensor only after passing through the lens components, and the aim of adjusting the signal intensity received by the heart rate sensor can be fulfilled as long as the positions of the guide rails are controlled;
in addition, the heart rate sensor is arranged on the heart rate circuit board, the electromagnetic coil is arranged around the guide rail, and the processor chip is respectively and electrically connected with the electromagnetic coil and the heart rate sensor; the processor chip sends a voltage control signal for the whole traversing process to the electromagnetic coil, so that the electromagnetic coil can generate different electromagnetic forces according to the voltage control signal for the whole traversing process of the processor chip, the driving guide rail traverses the whole measuring range of the electromagnetic coil, and the heart rate sensor can acquire the heart rate signal intensity of the lens component at any position of the electromagnetic coil;
meanwhile, the heart rate sensor acquires heart rate measurement data in real time in the whole course of traversing the lens assembly on the guide rail, and sends the acquired heart rate measurement data to the processor chip; the processor chip receives heart rate measurement data acquired by the heart rate sensor, analyzes the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sends a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil; the electromagnetic coil generates corresponding electromagnetic force according to a voltage control signal of the processor chip, which corresponds to the optimal maintenance position of the lens component, so that the lens component is driven to be in the optimal maintenance position, and the heart rate signal received by the heart rate sensor is optimal.
Preferably, the heart rate module further comprises an LED lamp and an LED lamp driving circuit which are arranged on a heart rate circuit board, wherein the heart rate circuit board plays a supporting role; the LED lamp driving circuit is electrically connected with the processor chip, and the LED lamp driving circuit is electrically connected with the LED lamp, so that the LED lamp driving circuit can adjust the transmitting power of the LED lamp according to the control signal of the processor chip, and then the LED lamp driving circuit is matched with the electromagnetic coil to drive the lens assembly to move on the guide rail, so that the signal intensity received by the heart rate sensor is optimal. Especially when the skin color of the user is darker or the hair is thicker, the signal intensity received by the heart rate sensor can be obviously attenuated, the requirements of different users can be met by adjusting the transmitting power of the LED lamp, the testing precision of the heart rate module is ensured, and the practicability of the invention is improved.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The heart rate module is characterized by comprising a heart rate circuit board, a processor chip, a heart rate sensor, an electromagnetic coil, a lens assembly and a guide rail; the heart rate sensor is arranged on a heart rate circuit board, the guide rails are symmetrically arranged on two sides of the front end of the heart rate sensor, the lens assemblies are arranged between the guide rails, the electromagnetic coils are arranged around the guide rails, the guide rails are magnetic substances, and the processor chip is respectively and electrically connected with the electromagnetic coils and the heart rate sensor;
the processor chip is used for sending a voltage control signal for traversing the whole course to the electromagnetic coil; receiving heart rate measurement data acquired by the heart rate sensor, analyzing the optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum from the received heart rate measurement data, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil;
the electromagnetic coil is used for generating different electromagnetic forces according to the voltage control signals of the whole traversing process of the processor chip so as to drive the guide rail to traverse the electromagnetic coil in the whole measuring range; and generating a corresponding electromagnetic force according to a voltage control signal of the processor chip corresponding to an optimal maintenance position of the lens assembly so as to drive the lens assembly to be in the optimal maintenance position;
the heart rate sensor is used for collecting heart rate measurement data in real time in the process that the guide rail traverses the electromagnetic coil full range motion, and sending the collected heart rate measurement data to the processor chip.
2. The heart rate module of claim 1, further comprising an infrared filter disposed at a front end of the heart rate sensor;
the infrared filter is used for filtering infrared interference from external signals.
3. The heart rate module of claim 1 or 2, further comprising an LED light and an LED light driving circuit disposed on the heart rate circuit board, the processor chip being electrically connected to the LED light driving circuit, the LED light driving circuit being electrically connected to the LED light;
the processor chip is further configured to receive heart rate measurement data collected by the heart rate sensor after sending a voltage control signal corresponding to an optimal maintenance position of the lens assembly to the electromagnetic coil, compare the received heart rate measurement data with a preset measurement threshold, and send a voltage control signal for increasing the emission power to the LED lamp driving circuit if the received heart rate measurement data is smaller than the preset measurement threshold;
the LED lamp driving circuit is used for adjusting the transmitting power of the LED lamp according to the voltage control signal of the processor chip.
4. A heart rate module as claimed in claim 3, wherein the number of LED lamps is plural, each LED lamp being provided with an independent LED lamp driving circuit;
the LED lamps are symmetrically arranged with the heart rate sensor as a center.
5. Heart rate module according to claim 3 or 4, wherein the LED lamp is a green LED lamp.
6. An electronic device for acquiring heart rate, characterized in that the electronic device comprises a shell, a main control board and the heart rate module set according to any one of claims 1-5; the heart rate module is arranged on the lower surface of the shell, a light hole is formed in the shell corresponding to the position of the heart rate module, and a processor chip of the heart rate module is arranged on the main control board.
7. The electronic device of claim 6, wherein the electronic device further comprises a display screen and a battery; the display screen is arranged on the upper surface of the shell, and the battery is arranged between the main control panel and the heart rate module;
the display screen is used for displaying measurement data and time information related to heart rate;
the battery is used for supplying power to the display screen, the main control panel and the heart rate module.
8. A heart rate acquisition method, the method comprising:
guide rails are symmetrically arranged on two sides of the front end of the heart rate sensor, lens components are arranged between the guide rails, and electromagnetic coils are arranged around the guide rails;
transmitting a voltage control signal for traversing the whole range to the electromagnetic coil, and controlling the electromagnetic coil to generate different electromagnetic forces so as to drive a guide rail to traverse the whole range of the electromagnetic coil;
acquiring a plurality of heart rate measurement data acquired by the heart rate sensor in real time in the process that the guide rail traverses the electromagnetic coil in full-range motion;
and according to the heart rate measurement data, analyzing an optimal maintenance position corresponding to the lens assembly when the heart rate measurement value is maximum, and sending a voltage control signal corresponding to the optimal maintenance position of the lens assembly to the electromagnetic coil so as to drive the lens assembly to be at the optimal maintenance position.
9. The method of claim 8, wherein the method further comprises:
an infrared filter is arranged at the front end of the heart rate sensor, and infrared interference from external signals is filtered through the infrared filter.
10. The method of claim 9, wherein the method further comprises:
one or more LED lamps are arranged around the heart rate sensor;
acquiring heart rate measurement data acquired by the heart rate sensor after sending a voltage control signal to the electromagnetic coil corresponding to an optimal maintenance position of the lens assembly;
and comparing the heart rate measurement data with a preset measurement threshold, and if the heart rate measurement data is smaller than the preset measurement threshold, increasing the emission power of the LED lamp.
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| CN109998516A (en) * | 2019-05-21 | 2019-07-12 | 广州视源电子科技股份有限公司 | Heart rate paste and heart rate monitor |
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