CN111839461A - Sensor and intelligent wearable equipment - Google Patents
Sensor and intelligent wearable equipment Download PDFInfo
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- CN111839461A CN111839461A CN202010732216.2A CN202010732216A CN111839461A CN 111839461 A CN111839461 A CN 111839461A CN 202010732216 A CN202010732216 A CN 202010732216A CN 111839461 A CN111839461 A CN 111839461A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/10—Electronic devices other than hearing aids
Abstract
The application provides a sensor and intelligent wearing equipment, the sensor includes: the semiconductor diaphragm is used for outputting a voltage signal under constant current; the first amplifier is connected with the semiconductor membrane and used for amplifying the voltage signal and dividing the amplified voltage signal into a first path of signal and a second path of signal; the first circuit is connected with the first amplifier and used for generating a corresponding body temperature signal according to the first path of signal; and the second circuit is connected with the first amplifier and is used for generating a pore aperture signal according to the second path of signal. This application adopts a semiconductor diaphragm to realize the detection function of body temperature, pore aperture, will realize originally that a plurality of sensors that the sign detected, through the normalization of sensor characteristic, integrated to a semiconductor diaphragm in, improved sign monitoring function's integrated level.
Description
Technical Field
The application relates to the technical field of intelligent wearable equipment, in particular to a sensor and intelligent wearable equipment.
Background
The human body physical sign parameters mainly comprise respiratory rate, body temperature, heart rate, blood pressure and weight, and the health indexes can reflect the health level of a human body to a certain extent. When these indicators are out of the normal range, it means that the body has some sudden illness or some sudden danger. At present, in intelligent wearing equipment, all there are various sensors to perception these common health indicators, for example the rhythm of the heart function of bracelet, the temperature sensing function of cell-phone etc.. However, most sensors on the market at present are single-function sensors, and can only detect one to two sign parameters, if a plurality of signs need to be detected, a plurality of sensors need to be added into an electronic product, so that the integration level is low, and the cost is high.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The utility model provides a sensor and intelligent wearing equipment can utilize the semiconductor diaphragm to realize the detection function of body temperature, pore aperture, has improved sign monitoring function's integrated level. The specific scheme is as follows:
the application provides a sensor, including:
the semiconductor diaphragm is used for outputting a voltage signal under constant current;
the first amplifier is connected with the semiconductor membrane and used for amplifying the voltage signal and dividing the amplified voltage signal into a first path of signal and a second path of signal;
the first circuit is connected with the first amplifier and used for generating a corresponding body temperature signal according to the first path of signal;
and the second circuit is connected with the first amplifier and is used for generating a pore aperture signal according to the second path of signal.
Preferably, the method further comprises the following steps:
the strain resistor is connected with the semiconductor diaphragm and used for outputting a pressure signal according to the input voltage signal under the constant current;
and the second amplifier is connected with the strain resistor and is used for amplifying the pressure signal so as to output a blood pressure signal.
Preferably, the second circuit comprises:
the first delay circuit is connected with the first amplifier and used for outputting a reference signal when a first signal passes through the first delay circuit, wherein the second signal is divided into a first signal and a second signal;
a comparator having an input terminal connected to the output terminal of the first delay circuit and the output terminal of the first amplifier, and configured to generate a level signal according to the reference signal and the current second signal, wherein the level signal is divided into a first level signal and a second level signal;
a second delay circuit connected to the comparator for outputting an input level signal when the second level signal passes through the second delay circuit;
and the edge trigger circuit is connected with the output end of the second delay circuit and the output end of the comparator at the input end and is used for generating the pore aperture signal according to the current first level signal and the input level signal.
Preferably, the first circuit comprises:
and the AD converter is connected with the semiconductor diaphragm and is used for generating the body temperature signal from the first path of signal.
Preferably, the method further comprises the following steps:
a light emitting diode assembly for emitting a predetermined color light;
a photodiode corresponding to the light emitting diode assembly;
and the optical filter is covered above the photodiode and used for enabling the photodiode to collect optical signals corresponding to the preset color light.
Preferably, the light emitting diode assembly comprises a green light source;
correspondingly, the photodiode is used for collecting green light signals and obtaining heart rate signals according to the green light signals.
Preferably, the light emitting diode assembly further comprises a red light source and an infrared light source;
correspondingly, the photodiode is used for collecting a red light signal and an infrared light signal and obtaining a blood oxygen content signal and/or a respiratory frequency signal according to the red light signal and the infrared light signal.
Preferably, the method further comprises the following steps:
a light transmissive barrier covering over the light emitting diode assembly.
The application provides an intelligence wearing equipment includes:
a sensor as claimed in any one of the above;
and the processor is connected with the sensor and is used for processing the signals sent by the sensor.
Preferably, the method further comprises the following steps:
a wireless communication module connected with the processor.
The present application provides a sensor comprising: the semiconductor diaphragm is used for outputting a voltage signal under constant current; the first amplifier is connected with the semiconductor membrane and used for amplifying the voltage signal and dividing the amplified voltage signal into a first path of signal and a second path of signal; the first circuit is connected with the first amplifier and used for generating a corresponding body temperature signal according to the first path of signal; and the second circuit is connected with the first amplifier and is used for generating a pore aperture signal according to the second path of signal.
It is thus clear that, utilize the semiconductor diaphragm output voltage signal under the constant current in this application, amplifier circuit amplifies voltage signal, then the first way signal of voltage signal generates the body temperature signal through first circuit, the second way signal of voltage signal generates pore aperture signal through the second circuit, this application has adopted a semiconductor diaphragm to realize body temperature, pore aperture's detection function, will realize originally a plurality of sensors that the sign detected, through the normalization of sensor characteristic, integrate to a semiconductor diaphragm, the integrated level of sign monitoring function has been improved.
This application still provides an intelligence wearing equipment simultaneously, has above-mentioned beneficial effect, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sensor provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another sensor provided in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another sensor provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an integration of a sensor provided in an embodiment of the present application;
FIG. 5 is a side cross-sectional view of FIG. 4 according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a sensor in a smart bracelet according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a sensor in smart glasses according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The human body physical sign parameters mainly comprise respiratory rate, body temperature, heart rate, blood pressure and weight, and the health indexes can reflect the health level of a human body to a certain extent. When these indicators are out of the normal range, it means that the body has some sudden illness or some sudden danger. At present, in intelligent wearing equipment, all there are various sensors to perception these common health indicators, for example the rhythm of the heart function of bracelet, the temperature sensing function of cell-phone etc.. However, the sensors on the market at present are sensors with single functions, and can only detect one to two sign parameters, and the common sensors have a heart rate sensor, a blood pressure sensor, a temperature sensor and a blood oxygen content sensor, and the sensors are mostly applied to a certain electronic product at the same time, so that the integration level is lower, and the cost is higher.
Based on the above technical problem, this embodiment provides a sensor, utilize semiconductor diaphragm output voltage signal under constant current, amplifier circuit amplifies the voltage signal, then the first way signal of voltage signal generates the body temperature signal through first circuit, the second way signal of voltage signal generates pore aperture signal through the second circuit, this application has realized the detection function of body temperature, pore aperture in utilizing the sensor, has improved the integration level of sign monitoring function, for the miniaturization of future intelligent device and portability provide probably, please refer to fig. 1 specifically, fig. 1 is the structure schematic diagram of a sensor that this application embodiment provided, specifically include:
a semiconductor diaphragm 100 for outputting a voltage signal at a constant current;
the first amplifier 200 is connected with the semiconductor membrane 100 and used for amplifying the voltage signal and dividing the amplified voltage signal into a first path of signal and a second path of signal;
the first circuit 300 is connected with the first amplifier and used for generating a corresponding body temperature signal according to the first path of signal;
and a second circuit 400 connected to the first amplifier for generating a pore aperture signal based on the second signal.
The semiconductor film 100 is not limited in this embodiment as long as the object of this embodiment can be achieved. The sensor in this embodiment may further include a constant current source, which provides a constant current to the semiconductor membrane 100, where the constant current generates a voltage signal after flowing through the semiconductor membrane 100, and since the voltage signal is weak, the voltage signal needs to be amplified by the first amplifier 200, the first amplifier 200 divides the amplified voltage signal into two paths of signals, the voltage signal output by the first path of signal after passing through the first circuit 300 is a body temperature signal, and the voltage signal output by the second path of signal after passing through the second circuit 400 is a temperature change signal, i.e., a pore aperture signal, where the pore aperture signal represents a change of a state before and after a pore, and the state is mainly a pore aperture reduction state or a pore aperture amplification state. In this embodiment, the first circuit 300 and the second circuit 400 are not limited, and a user can set by himself/herself, wherein the first circuit 300 may only include a transmission line, and the body temperature signal that is finally output is the first path of signal, and the body temperature signal is an analog signal, and further, the first circuit 300 may include an AD converter, and convert the analog signal into a digital signal to obtain a digital body temperature signal.
The body temperature detection is to use a thermosensitive semiconductor as a thermistor material, the resistance value of the thermistor changes according to the temperature change, and a voltage or current signal of a sampling resistor determines a body temperature signal which corresponds to a body temperature value; the pore detection is that the semiconductor doped with impurities is attached to the skin, the temperature of the semiconductor attached to the skin is higher, the temperature of the semiconductor at the part close to the skin is lower because the lower part of the semiconductor at the pore part is not in direct contact with the skin, when the pore diameter of the pore is enlarged, the area of the semiconductor part with higher temperature is reduced, and at the moment, electrons in the semiconductor move, so that the voltage of the semiconductor is reduced; when the pore diameter of the pores shrinks, the area of the semiconductor part with higher temperature is increased, the internal electrons move reversely to increase the semiconductor voltage, and the pore enlargement or the pore shrinkage is judged by detecting the change of the voltage signal output by the semiconductor. It can be seen that the semiconductor membrane 100 in this embodiment includes two functions, one is a thermosensitive semiconductor for body temperature detection and the other is a semiconductor for pore detection. When the sample temperature and the pore diameter change, the temperature signal is divided into a body temperature signal and a pore diameter change signal by the semiconductor diaphragm 100 and the first circuit 300 and the second circuit 400, and is output to the back end circuit.
Further, referring to fig. 2, fig. 2 is a schematic structural diagram of another sensor according to an embodiment of the present application, in which the second circuit 400 includes:
a first delay circuit 420 connected to the first amplifier 200 for outputting a reference signal when the first signal passes through the first delay circuit 420, wherein the second signal is divided into the first signal and the second signal;
a comparator 410 having an input terminal connected to the output terminal of the first delay circuit 420 and the output terminal of the first amplifier 200, and configured to generate a level signal according to the reference signal and the current second signal, wherein the level signal is divided into a first level signal and a second level signal;
a second delay circuit 440 connected to the comparator 410, for outputting an input level signal when the second level signal passes through the second delay circuit 440;
an edge triggered circuit 440 having an input connected to the output of the second delay circuit 440 and the output of the comparator 410 is used for generating a pore aperture signal according to the current first level signal and the input level signal.
Wherein the voltage signal is passed through the second circuit 400 to form a temperature variation signal, i.e. a pore aperture signal. The second path of signal output by the first amplifying circuit is divided into two parts (a first signal and a second signal), the second signal is used as an input signal of the comparator 410, the first signal passes through the first delay circuit 420 and is used as a reference signal of the comparator 410, and when the temperature changes (pore aperture changes), the reference signal is not changed temporarily due to the influence of the first delay circuit 420 or is the first signal in the previous state; the second signal to be compared is immediately changed to form a voltage difference, so that the comparator 410 outputs a level signal (high-low level), for example, when the input signal is higher than the reference signal, the comparator 410 outputs a level signal as high level. The level signal output by the comparator 410 is output to the back-end edge trigger circuit 430 as a temperature change signal, and the level signal is also divided into two parts (a first level signal and a second level signal), the first level signal is used as an edge trigger signal, the second level signal is used as an input level signal of the edge trigger circuit 430 through the second delay circuit 440, when the level signal output by the comparator 410 changes from low level to high level, the edge trigger rises to trigger, and captures the low level of the input level signal of the trigger (the input signal of the trigger still maintains the level state before the change due to the influence of the delay circuit), and finally, the low level output by the edge trigger circuit 430 is used as a pore aperture signal (a pore aperture reduction or amplification signal). Examples are: when the pore diameter shrinks and the temperature becomes high, the second path of signal of the semiconductor membrane 100 after passing through the first amplifier 200 becomes large, the input signal (the second signal of the second path of signal) of the comparator 410 is higher than the reference signal (the first signal in the previous state) at this time, the output level signal of the comparator 410 is high level (from low to high and rising edge), the edge trigger circuit 430 detects the rising edge at this time, the input level signal of the edge trigger circuit 430 is captured at this time, because of the influence of the delay circuit, the input level signal of the edge trigger is still the low level in the previous state at this time, and finally the edge trigger outputs the low level.
Further, the first circuit 300 includes: and the AD converter 310 is connected with the semiconductor diaphragm 100 and is used for generating the body temperature signal from the first path of signal. The first circuit 300 in this embodiment includes an AD converter 310 for signal conversion. And converting the analog signals into digital signals, and finally outputting the digital signals to a back-end system.
Based on the technical scheme, the semiconductor membrane 100 is used for outputting the voltage signal under the constant current, the amplifying circuit amplifies the voltage signal, then the first path of signal of the voltage signal generates the body temperature signal through the first circuit 300, and the second path of signal of the voltage signal generates the pore aperture signal through the second circuit 400.
Further, in order to integrate multiple detection functions and enable the sensor to synchronously realize multiple monitoring functions, please refer to fig. 3, where fig. 3 is a schematic structural diagram of another sensor provided in the embodiment of the present application, further including: a strain resistor 500 connected to the semiconductor diaphragm 100 for outputting a pressure signal according to an input voltage signal at a constant current; and a second amplifier 600 connected to the strain resistor 500 for amplifying the pressure signal to output a blood pressure signal.
During blood pressure detection, when pulse beats, micro pressure is transmitted to the pressure sensing film, the pressure sensing film transmits the pressure to the strain resistor 500, the strain resistor 500 acquires beating pressure information, namely a pressure signal, the pressure signal is amplified to generate a blood pressure signal, and the blood pressure signal is output to a back-end system, so that the back-end system calculates the blood pressure of a human body through a series of algorithms. It is understood that the semiconductor film 100 of the present embodiment can also be used as a pressure sensing film for blood pressure detection. When blood pressure is detected, the semiconductor diaphragm 100 detects the vasodilation pressure to obtain a voltage signal, i.e., a pressure signal, and transmits the pressure signal to the high-precision strain resistor 500, the constant current source supplies constant current to the strain resistor 500, the resistance value of the strain resistor changes due to the pressure change, and a weak voltage signal is output to the second amplifier (the signal amplifier in fig. 3) 600 to obtain the blood pressure signal. Further, a pressure signal is output at a constant current, an analog blood pressure signal is generated through the second amplifier 600, and a digital blood pressure signal is output through AD conversion.
It can be seen that, in this embodiment, three detection functions of body temperature, pore size and blood pressure are realized by using one semiconductor membrane 100, and the integration level of physical sign monitoring is greatly improved.
Further, in order to integrate multiple detection functions, the sensor can synchronously realize multiple monitoring functions, and the sensor further comprises: a light emitting diode assembly 700 for emitting light of a predetermined color; a photodiode 800 corresponding to the light emitting diode assembly 700; and a filter covering the photodiode 800 for allowing the photodiode 800 to collect a light signal corresponding to a predetermined color light.
In this embodiment, the constant current source supplies power to the led assembly 700, it is understood that the constant current source in this embodiment may provide a constant current source for the strain resistor 500, the semiconductor diaphragm 100 and the led assembly 700, and further, the constant current source provides a fixed voltage for the photodiode 800; an external power supply device consisting of a constant voltage source and a constant current source provides electric energy for the multifunctional sensor.
The led assembly 700 may include a plurality of light sources, each corresponding to one of the photodiodes 800. The light source is not limited in this embodiment, and may be an LED light source, or may be another light source as long as the object of this embodiment can be achieved. The sensor in this embodiment may further include a logic circuit for controlling the turn-on sequence, duration and period of the light sources in the led assembly 700, and the specific timing sequence is determined according to a specific algorithm. The constant current source provides constant current for the led assembly 700 to ensure that the light intensity of the led assembly 700 remains unchanged, and the logic circuit controls the on/off of the led assembly 700 by controlling the on/off of the current.
The photodiode 800 is mainly used for receiving the emitted light signals of different lights, and the reflected light signals of different lights are received by the optical filter on the sensor structure.
When the light source in the photodiode 800 assembly is turned on, the constant voltage signal provided by the constant voltage source is output through the light source, and the photodiode 800 receives the reflected light signal corresponding to the light. The light source in the led assembly 700 is not limited in this embodiment, and the user can set the light source according to actual requirements. In one implementation, the led 700 includes a green light source, and correspondingly, the photodiode 800 is configured to collect a green light signal corresponding to the preset color light, and obtain a heart rate signal according to the green light signal, so as to implement a heart rate monitoring function. In another implementation, the light emitting diode 700 includes a red light source and an infrared light source, and correspondingly, the photodiode 800 is configured to collect a red light signal and an infrared light signal corresponding to the preset color light, and obtain a blood oxygen content signal according to the red light signal and the infrared light signal, so as to implement a heart rate monitoring function. In another implementation, the light emitting diode 700 includes a green light source, a red light source, and an infrared light source, and correspondingly, the photodiode 800 is configured to collect a green light signal, a red light signal, and an infrared light signal corresponding to the preset color light, and obtain a blood oxygen content signal and/or a respiratory frequency signal according to the red light signal and the infrared light signal, so as to implement a blood oxygen content and/or respiratory frequency monitoring function, and obtain a heart rate signal according to the green light signal, so as to implement a heart rate monitoring function. It can be seen that, in the present embodiment, by arranging the light emitting diode assembly 700 and the corresponding photodiode 800 in the sensor, a plurality of detection functions are integrated, so that the sensor can synchronously realize a plurality of monitoring functions.
Further, in order to ensure that the light sources in the photodiode 800 are not interfered with each other, the light sensor further includes: a light transmissive barrier covering the led assembly 700. The led module 700 includes a plurality of light sources, each of which is covered with a transparent baffle, and in this embodiment, only light with a fixed wavelength can be detected by the photodiode 800 through the optical filter after the transparent baffle is set, so that it is ensured that the light sources are not interfered with each other. It should be noted that the positions and the numbers of the light-transmitting baffle and the light filter are not limited, and can be adjusted correspondingly according to specific products. It can be seen that in the present embodiment, a transparent baffle is disposed above each light source in the led assembly 700 to ensure that the light sources are not interfered with each other.
In one implementable embodiment, the light emitting diode assembly 700 includes a green light source; correspondingly, the photodiode 800 is used for collecting the green light signal and obtaining the heart rate signal according to the green light signal.
It can be understood that the heart rate detection adopts the photoelectric volume method, and by detecting the intensity of green reflected light of human blood and tissue, when the heart beats, the blood content in the artery increases, the intensity of the reflected light increases, the obtained green light signal increases, and the heart rate signal can be obtained according to the green light signal, so as to detect the artery beating.
In another implementable embodiment, the light emitting diode assembly 700 further includes a red light source and an infrared light source; correspondingly, the photodiode 800 is configured to collect the red light signal and the infrared light signal, and obtain a blood oxygen content signal and/or a respiratory rate signal according to the red light signal and the infrared light signal.
The method mainly comprises the steps of adopting a spectrophotometry for detecting the blood oxygen content, adopting red light with the wavelength of 660nm and infrared light with the wavelength of 940nm, and determining the oxygenation degree of the hemoglobin according to the fact that the oxyhemoglobin has less absorption capacity to the 660nm red light and more absorption capacity to the 940nm infrared light, and on the contrary, the oxyhemoglobin is used for measuring the ratio of the absorption capacity to the infrared light and the absorption capacity to the red light by the spectrophotometry. In this embodiment, the blood oxygen content signal is obtained according to the red light signal and the infrared light signal, so as to realize the detection of the blood oxygen content.
The respiratory rate detection is realized by blood oxygen content detection, when a human body breathes, the oxygen content in blood can generate periodic change along with the respiratory rate, so that the change rate of the oxygen content in the blood can be detected while the blood oxygen content is detected, and the respiratory rate is obtained by a series of algorithms. It is understood that the blood oxygen content signal and the respiration frequency signal have the same corresponding signal value, and only if the signal identification is different, the respiration frequency signal is sent to the back-end system, so that the back-end system determines to calculate the respiration frequency based on the respiration frequency signal, and then calculates the respiration frequency value based on the respiration frequency signal.
The present embodiment does not limit the setting position of each component in the sensor, and the user can set the sensor according to actual requirements as long as the purpose of the present embodiment can be achieved. Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of an integration of a sensor according to an embodiment of the present disclosure, and fig. 5 is a cross-sectional side view of fig. 4 according to an embodiment of the present disclosure. In fig. 4, 1 denotes a sensor outer package, 100 denotes a semiconductor diaphragm, 2-1, 2-2, 2-3 denote light-transmitting barriers covering three light-emitting diodes, and 3-1, 3-2, 3-3 denote filters covering three photodiodes, respectively. In fig. 5, where 1 is the sensor package, 4 is the hardware integrated circuit in the sensor, which mainly includes a constant current and constant voltage source, a logic circuit, a signal amplifier, an AD converter and other related circuits, 100 is a semiconductor diaphragm, 500 is a high precision strain resistor located under the semiconductor diaphragm, which is tightly attached to the semiconductor diaphragm 100, and detects a pressure signal, 3 is a certain optical filter, 800 is a certain photodiode, 2 is a certain light-transmitting baffle, 710 is a certain light-emitting diode, i.e., a light source, and 5-marked arrows indicate electrical connections, where the light-emitting diode, the photodiode, the strain resistor and the semiconductor diaphragm are structurally located outside the integrated circuit, but belong to a part of the hardware circuit through some electrical connections.
Based on above-mentioned technical scheme, this embodiment provides a sensor has realized the real-time detection to human body temperature, rhythm of the heart, blood oxygen content, blood pressure, respiratory rate and the change of capillary aperture, has integrated the measurement function of each item human sign parameter to a sensor, has improved sign monitoring function's integrated level, provides probably for future smart machine miniaturization and portableization. In addition, in the embodiment, the semiconductor membrane 100 is adopted to realize three detection functions of body temperature, pore size and blood pressure, and a plurality of sensors originally realizing physical sign detection are integrated into one sensor through normalization of sensor characteristics, so that the integration level of the sensor is improved.
In the following, the intelligent wearable device provided by the embodiment of the present application is introduced, and the intelligent wearable device described below and the sensor described above may be referred to in correspondence with each other.
This embodiment provides an intelligence wearing equipment, includes:
the sensor as described above;
and the processor is connected with the sensor and is used for processing the signals sent by the sensor.
In an implementation mode, the processor is used for processing the body temperature signal to obtain a body temperature value; and processing the pore diameter signal to obtain a pore diameter change value.
In another implementation, the processor is further configured to process the blood pressure signal to obtain a blood pressure value.
In another implementation, the processor is further configured to process the heart rate signal to obtain a heart rate value.
In another implementation, the processor is further configured to process the blood oxygen content signal to obtain a blood oxygen content value.
In another implementation, the processor is further configured to process the respiration frequency signal to obtain the respiration frequency value.
In another implementable embodiment, further comprising: and the wireless communication module is connected with the processor.
The wireless communication module is used for being connected with a terminal. The other devices may be cell phones, tablets, computer devices, and the like.
The intelligent wearing equipment in this embodiment can be intelligent bracelet, can also be intelligent glasses, and certainly can also be other intelligent wearing equipment as long as can realize the purpose of this embodiment.
When intelligent wearing equipment can be intelligent bracelet, please refer to fig. 6, fig. 6 is a schematic structural diagram of a sensor in intelligent bracelet that this application embodiment provides. When the smart wearable device may be smart glasses, please refer to fig. 7, and fig. 7 is a schematic structural diagram of a sensor in the smart glasses according to an embodiment of the present application.
Since the embodiment of the smart wearable device portion corresponds to the embodiment of the sensor portion, please refer to the description of the embodiment of the sensor portion for the embodiment of the smart wearable device portion, which is not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
A sensor and intelligent wearing equipment that this application provided have been introduced in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A sensor, comprising:
the semiconductor diaphragm is used for outputting a voltage signal under constant current;
the first amplifier is connected with the semiconductor membrane and used for amplifying the voltage signal and dividing the amplified voltage signal into a first path of signal and a second path of signal;
the first circuit is connected with the first amplifier and used for generating a corresponding body temperature signal according to the first path of signal;
and the second circuit is connected with the first amplifier and is used for generating a pore aperture signal according to the second path of signal.
2. The sensor of claim 1, further comprising:
the strain resistor is connected with the semiconductor diaphragm and used for outputting a pressure signal according to the input voltage signal under the constant current;
and the second amplifier is connected with the strain resistor and is used for amplifying the pressure signal so as to output a blood pressure signal.
3. The sensor of claim 1, wherein the second circuit comprises:
the first delay circuit is connected with the first amplifier and used for outputting a reference signal when a first signal passes through the first delay circuit, wherein the second signal is divided into a first signal and a second signal;
a comparator having an input terminal connected to the output terminal of the first delay circuit and the output terminal of the first amplifier, and configured to generate a level signal according to the reference signal and the current second signal, wherein the level signal is divided into a first level signal and a second level signal;
a second delay circuit connected to the comparator for outputting an input level signal when the second level signal passes through the second delay circuit;
and the edge trigger circuit is connected with the output end of the second delay circuit and the output end of the comparator at the input end and is used for generating the pore aperture signal according to the current first level signal and the input level signal.
4. The sensor of claim 1, wherein the first circuit comprises:
and the AD converter is connected with the semiconductor diaphragm and is used for generating the body temperature signal from the first path of signal.
5. The sensor of any one of claims 1 to 4, further comprising:
a light emitting diode assembly for emitting a predetermined color light;
a photodiode corresponding to the light emitting diode assembly;
and the optical filter is covered above the photodiode and used for enabling the photodiode to collect optical signals corresponding to the preset color light.
6. The sensor of claim 5, wherein the light emitting diode assembly comprises a green light source;
correspondingly, the photodiode is used for collecting green light signals and obtaining heart rate signals according to the green light signals.
7. The sensor of claim 5, wherein the light emitting diode assembly further comprises a red light source and an infrared light source;
correspondingly, the photodiode is used for collecting a red light signal and an infrared light signal and obtaining a blood oxygen content signal and/or a respiratory frequency signal according to the red light signal and the infrared light signal.
8. The sensor of claim 5, further comprising:
a light transmissive barrier covering over the light emitting diode assembly.
9. An intelligence wearing equipment which characterized in that includes:
the sensor of any one of claims 1 to 8;
and the processor is connected with the sensor and is used for processing the signals sent by the sensor.
10. The smart wearable device according to claim 9, further comprising:
a wireless communication module connected with the processor.
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| CN202010732216.2A CN111839461B (en) | 2020-07-27 | 2020-07-27 | Sensor and intelligent wearable equipment |
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| CN202010732216.2A CN111839461B (en) | 2020-07-27 | 2020-07-27 | Sensor and intelligent wearable equipment |
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| CN111839461B (en) | 2022-11-22 |
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