A kind of the heart rate acquisition equipment and heart rate acquisition methods of open air runningTechnical field
The present invention relates to intelligent wearable device technical field more particularly to a kind of heart rate of outdoor running obtain equipment andHeart rate acquisition methods.
Background technology
With the development of intelligence science and technology, more and more intelligence wearing products enter daily life, are brought to lifeIt is convenient.It is one of them that the heart rate of outdoor road-work, which obtains equipment,.The heart rate obtains equipment and is worn on human body, is used forHuman heart rate is obtained during outdoor running, healthy data is provided.Current existing wearing product is passed using photoelectricity heart rateSensor, photoelectricity heart rate sensor are to carry out human body fortune using photoplethaysmography (Photoplethysmograph, PPG) technologyThe detection of aroused in interest rate is an application for belonging to Infrared Non-destructive Testing technology in biomedicine.Principle is：Utilize photoelectric sensingThe difference of intensity of reflected light of the device detection after blood of human body and tissue resorption, traces out capacity of blood vessel within cardiac cycleVariation, heart rate is calculated from obtained pulse wave.
During actually running, photoelectricity heart rate sensor is susceptible to because of originals such as wearing, environment temperature, body heathsCause, leads to that photosignal is faint, even disappears, so as to cause the heart rate value conversed and practical heart rate value there are larger difference,This is unfavorable for obtaining accurate healthy data.
Invention content
The goal of the invention of the present invention is to provide a kind of the heart rate acquisition equipment and heart rate acquisition methods of outdoor running, utilizesSince human body is run in a period of time, on the one hand heart rate obtains during equipment wears situation relative to running thereafter at this timeWearing situation is good, and another aspect human heart rate gradually increases with running rate and increases, the sensing element of photoelectricity heart rate sensorSingle change direction signal is received, relative to the signal of change direction repeatedly is received, it is accurate to measure；Thus in time periodHeart rate checking list of the rate of running with the corresponding table of heart rate as this running process, in hereafter running, if photoelectricity sensing heart rateThe difference for the real-time heart rate of the human body heart rate corresponding with rate of running in checking list this moment that device measures exceeds a predictive error range,Then use the corresponding heart rate of rate of running this moment in checking list substitute the real-time heart rate of human body that photoelectricity heart rate sensor measures asHeart rate obtains the output heart rate of equipment；If without departing from the real-time heart rate of human body that still output photoelectric heart rate sensor measures.Heart rateThe output heart rate for obtaining equipment is accurate.
To achieve the above object, the present invention provides a kind of heart rate acquisition methods of outdoor sports, including：
Heart rate is obtained into equipment normal wear in human body, the photoelectricity heart rate sensor that the heart rate obtains equipment is contacted with peopleBody skin；
The photoelectricity heart rate sensor is obtained from human body running and starts to the heart rate of a predetermined amount of time, and the heart rate obtainsThe running rate acquisition module of equipment obtains the running rate in the predetermined amount of time；The race in the predetermined amount of timeHeart rate checking list of the leg speed rate with the corresponding table of the heart rate as this running process；
In this running, when heart rate acquisition equipment need to export human heart rate, the human body that photoelectricity heart rate sensor measures is judgedWhether the difference of real-time heart rate heart rate corresponding with rate of running in checking list this moment exceeds a predictive error range, if so,The corresponding heart rate of rate of running this moment in output calibration table；If it is not, the real-time heart of human body that then output photoelectric heart rate sensor measuresRate.
Optionally, whether normal wear is referred in human body by the wearing of the heart rate acquisition equipment output heart rate acquisition equipmentNumber judges.
Optionally, the predetermined amount of time be fixed value, the heart rate obtain equipment manufacture when set or manufacture after byUser sets；
Or the predetermined amount of time is to be not fixed value, at the time of initial time is that human body running starts, end time is lightElectric heart rate sensor gets at the time of human heart rate is the prearranged multiple of heart rate when human body running starts or gets the human body heartWhen rate starts higher than human body running at the time of the predetermined difference value of heart rate.
Optionally, the prearranged multiple be fixed value, the heart rate obtain equipment manufacture when set or manufacture after by withFamily is set；Or the predetermined difference value is fixed value, is set by the user after setting or dispatch from the factory when the heart rate obtaining equipment manufacture.
Optionally, the running rate acquisition module obtains the running rate in the predetermined amount of time and passes through：GPS positioningThe distance between two points periodically exported divided by the computation of Period are got.
Optionally, the heart rate that the photoelectricity heart rate sensor obtains is the average value of the heart rate measured in the period.
The present invention also provides a kind of hearts rate of outdoor running to obtain equipment, including：Photoelectricity heart rate sensor, running rateAcquisition module, processing module and heart rate output module；
Wherein, when heart rate obtains equipment normal wear in human body, the photoelectricity heart rate sensor is contacted with human skin；
Start since human body running in a predetermined amount of time, the photoelectricity heart rate sensor is used to obtain human heart rate, instituteRunning rate acquisition module is stated to be used to obtain the running rate in the predetermined amount of time；The processing module is based on described predeterminedPeriod, human heart rate and running rate obtain：Pair of the running rate and the heart rate in the predetermined amount of timeTable, the corresponding table is answered to be used for the heart rate checking list as this running process；
In this running, heart rate obtains equipment when need to export human heart rate, the processing module by looking into the checking list,Judging the difference for the real-time heart rate of the human body heart rate corresponding with rate of running in checking list this moment that photoelectricity heart rate sensor measures isIt is no to exceed a predictive error range, if so, the corresponding heart rate of rate that will this moment run in checking list is transmitted to the heart rate outputModule is to export；If it is not, the real-time heart rate of human body that photoelectricity heart rate sensor measures then is transmitted to the heart rate output module with defeatedGo out.
Optionally, the predetermined amount of time be fixed value, the heart rate obtain equipment manufacture when set or manufacture after byUser sets；
Or the predetermined amount of time is to be not fixed value, at the time of initial time is that human body running starts, end time is lightElectric heart rate sensor gets at the time of human heart rate is the prearranged multiple of heart rate when human body running starts or gets the human body heartWhen rate starts higher than human body running at the time of the predetermined difference value of heart rate.
Optionally, the prearranged multiple be fixed value, the heart rate obtain equipment manufacture when set or manufacture after by withFamily is set；Or the predetermined difference value is fixed value, is set by the user after setting or dispatch from the factory when the heart rate obtaining equipment manufacture.
Optionally, the running rate acquisition module obtains the running rate in the predetermined amount of time and passes through：GPS positioningThe distance between two points periodically exported divided by the computation of Period are got.
Optionally, the heart rate that the photoelectricity heart rate sensor obtains is the average value of the heart rate measured in the period.
Optionally, it is smartwatch or Intelligent bracelet that the heart rate, which obtains equipment,.
Compared with prior art, the beneficial effects of the present invention are：
1) in the present invention, using since human body is run in a period of time, on the one hand heart rate obtains equipment and wears at this timeSituation is good relative to wearing situation during running thereafter, and another aspect human heart rate gradually increases with running rate and increased,The sensing element of photoelectricity heart rate sensor receives single change direction signal, relative to the signal of change direction repeatedly is received, surveysAmount is accurate；Thus using running rate and the corresponding table of heart rate in time period as the heart rate checking list of this process of running,Hereafter in running, if the real-time heart rate of the human body heart rate corresponding with rate of running in checking list this moment that photoelectricity heart rate sensor measuresDifference exceed a predictive error range, then substitute photoelectricity heart rate sensor with the corresponding heart rate of rate of running in checking list this momentThe real-time heart rate of human body measured obtains the output heart rate of equipment as heart rate；If without departing from still output photoelectric heart rate sensorThe real-time heart rate of human body measured.The output heart rate that heart rate obtains equipment is accurate.
2) in alternative, heart rate obtains equipment, and whether normal wear obtains equipment output in human body by the heart rateIndex is dressed to judge.The tightness that index characterization intelligent wearable device is worn is dressed, is one of PPG module suppliers outputNumerical value.Such as：0 indicates the fine of wearing, and 1 indicates that the bad of wearing, 2 expressions are worn worst.The case where for output 1 and 2,It need to dress again, until output 0.
3) in alternative, predetermined amount of time：A) it can be fixed value, such as 2 minutes；The fixed value is set in heart rate acquisitionIt has been set or has been set by the user after dispatching from the factory when standby manufacture；Or b) be not fixed value.
For b) scheme, at the time of initial time is that human body running starts, end time can be b1) photoelectricity sensing heart rateAt the time of device gets the prearranged multiple of heart rate when human heart rate is human body running beginning；May be b2) get the human body heartWhen rate starts higher than human body running at the time of the predetermined difference value of heart rate.
For b1) prearranged multiple in scheme, it is fixed value, such as 1.1 times or 1.2 times, can be obtained in heart rateEquipment is set when dispatching from the factory, i.e., is set in equipment process；It can also be set by the user, i.e., be used in equipment after manufactureIt is set in journey.
For b2) predetermined difference value in scheme, it is fixed value, such as 10 beats/min or 20 beats/min, it can beHeart rate is set when obtaining equipment manufacture, i.e., is set in equipment process；It can also be set by the user, that is, set after manufactureIt is set during standby use.
4) in alternative, the running rate that running rate acquisition module obtains in predetermined amount of time passes through：A) GPS positioningThe distance between two points periodically exported divided by the computation of Period are got；Can also pass through b) GPS positioning with fixationTwo points are acquired to pitch period, the time that constant spacing divided by the constant spacing are consumed calculates and gets.For a) scheme,The heart rate that photoelectricity heart rate sensor obtains is the average value of the heart rate measured in the period, further to exclude photoelectricity heart rate biographySensor error measured directly.For same purpose, b) heart rate that obtains of the photoelectricity heart rate sensor in scheme is the periodThe average value of the heart rate measured in spacing spent time section.
Description of the drawings
Fig. 1 is the flow chart of the heart rate acquisition methods of the outdoor running in one embodiment of the invention；
Fig. 2 is that the heart rate of the outdoor running in one embodiment of the invention obtains the module map of equipment.
Specific implementation mode
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present inventionSpecific embodiment be described in detail.
Fig. 1 is the flow chart of the heart rate acquisition methods of the outdoor running in one embodiment of the invention.
Each step is introduced individually below.
Shown in referring to Fig.1, step S1 is first carried out, heart rate is obtained into equipment normal wear in human body, heart rate obtains equipmentPhotoelectricity heart rate sensor be contacted with human skin.
As described in the background art, photoelectricity heart rate sensor is to utilize photoplethaysmography(Photoplethysmograph, PPG) technology carries out the detection of human motion heart rate, and principle is：It is detected using photoelectric sensorThe difference of intensity of reflected light after blood of human body and tissue resorption traces out variation of the capacity of blood vessel within cardiac cycle,Heart rate is calculated from obtained pulse wave.Based on above-mentioned principle, photoelectricity heart rate sensor will measure accurate heart rate value,Human skin need to be contacted with.
In specific implementation, heart rate obtains equipment, and whether normal wear can obtain wearing for equipment output in human body by heart rateWear index judgement.It dresses index characterization heart rate and obtains the tightness that equipment is worn, be a number of PPG module suppliers outputValue.Such as：0 indicates the fine of wearing, and 1 indicates that the bad of wearing, 2 expressions are worn worst.It the case where for output 1 and 2, needsAgain it dresses, until output 0.
Then step S2 is executed, photoelectricity heart rate sensor is obtained from human body running and starts to the heart rate of a predetermined amount of time,The running rate acquisition module that heart rate obtains equipment obtains the running rate in the predetermined amount of time；Race in the predetermined amount of timeHeart rate checking list of the leg speed rate with the corresponding table of heart rate as this running process.
Since human body is run in a period of time, human heart rate gradually increases with running rate and increases, photoelectricity heart rateThe sensing element of sensor receives single change direction signal, and relative to the signal of change direction repeatedly is received, it is accurate to measure.BaseIn above-mentioned measuring characteristic, the present invention is using running rate and the corresponding table of heart rate in time period as the heart of this running processRate checking list.
In one scheme, predetermined amount of time is fixed value, such as 2 minutes.The fixed value is when heart rate obtains equipment manufactureIt has been set or has been set by the user after dispatching from the factory.Setting is set in equipment process when manufacture.It is set by the user after manufactureSet during equipment use.
In another scheme, predetermined amount of time is to be not fixed value.
Being not fixed the determination method of value can be：A) scheme, at the time of initial time is that human body running starts, end timeAt the time of the prearranged multiple of heart rate when human heart rate is human body running beginning being got for photoelectricity heart rate sensor.Or b)Scheme：At the time of initial time is still that human body running starts, end time is to get human heart rate higher than human body running to startWhen heart rate predetermined difference value at the time of.
It is fixed value for the prearranged multiple in a) scheme, such as 1.1 times or 1.2 times, can obtains and set in heart rateIt sets, i.e., is set in equipment process when standby manufacture；It can also be set by the user after manufacture, i.e., use process in equipmentMiddle setting.
It is fixed value for the predetermined difference value in b) scheme, such as 10 beats/min or 20 beats/min, it can be in the heartRate is set when obtaining equipment manufacture, i.e., is set in equipment process；It can also be set by the user after manufacture, i.e., in equipmentIt is set during use.
In one scheme, the running rate that running rate acquisition module obtains in predetermined amount of time passes through：The GPS positioning periodProperty the distance between two points exported divided by the computation of Period get.For this scheme, photoelectricity heart rate sensor obtainsHeart rate can be the heart rate measured in the period average value, it is measured directly further to exclude photoelectricity heart rate sensorError.
In another scheme, the running rate that running rate acquisition module obtains in predetermined amount of time passes through：GPS positioning withConstant spacing periodically acquires two points, and the time that constant spacing divided by the constant spacing are consumed calculates and gets.Equally forThe purpose of photoelectricity heart rate sensor error measured directly is excluded, the heart rate that the photoelectricity heart rate sensor in this programme obtains is thisThe average value of the heart rate measured in period spacing spent time section.
Known predetermined amount of time, running rate and heart rate countershaft can increase at any time, make running rate and heart rateCorresponding table.Each numerical value of this table is relatively accurate, can be used as the photoelectricity heart rate sensor outside predetermined amount of time during this time runningHeart rate checking list.
Step S3 is executed later, in this running, when heart rate acquisition equipment need to export human heart rate, judges that photoelectricity heart rate passesWhether the difference for the real-time heart rate of the human body heart rate corresponding with rate of running in checking list this moment that sensor measures is beyond a predetermined mistakePoor range, if so, the corresponding heart rate of rate of running in output calibration table this moment；If it is not, then output photoelectric heart rate sensor is surveyedThe real-time heart rate of human body of amount.
Such as Such analysis, on the one hand, heart rate, which obtains equipment, wears situation may become grain, on the other hand, light with running processFor the sensing element of electric heart rate sensor when receiving the signal of change direction repeatedly, measured heart rate may be inaccurate.To upperIt states heart rate measured directly to be corrected using checking list, accurate heart rate can be exported.
Above-mentioned predictive error ranging from fixed value can be 3~8 beats/min, when heart rate obtains equipment manufactureSetting.
Fig. 2 is that the heart rate of the outdoor running in one embodiment of the invention obtains the module map of equipment.With reference to shown in Fig. 2,The heart rate of outdoor running obtains equipment 1：Photoelectricity heart rate sensor 11, running rate acquisition module 12, processing module 13And heart rate output module 14；
Wherein, when heart rate obtains 1 normal wear of equipment in human body, photoelectricity heart rate sensor 11 is contacted with human skin；
Start since human body running in a predetermined amount of time, photoelectricity heart rate sensor 11 is for obtaining human heart rate, runningRate acquisition module 12 is used to obtain the running rate in predetermined amount of time；Processing module 13 is based on predetermined amount of time, the human body heartRate and running rate obtain：The corresponding table of running rate and heart rate in predetermined amount of time, the correspondence table are used to be used as thisThe heart rate checking list of running process；
In this running, when heart rate acquisition equipment 1 need to export human heart rate, processing module 13 is sentenced by looking into the checking listThe difference for the real-time heart rate of the human body heart rate corresponding with rate of running in checking list this moment that disconnected photoelectricity heart rate sensor 11 measures isIt is no to exceed a predictive error range, if so, the corresponding heart rate of rate that will this moment run in checking list is transmitted to heart rate output module14 with output；If it is not, the real-time heart rate of human body that photoelectricity heart rate sensor 11 measures then is transmitted to heart rate output module 14 to export.
It can be the intelligent wearable devices such as smartwatch or Intelligent bracelet that heart rate, which obtains equipment 1,.
Predetermined amount of time in equipment 1 is obtained for heart rate：In one scheme, predetermined amount of time is fixed value, such as 2 pointsClock.The fixed value is set by the user after heart rate obtains and has been set or dispatched from the factory when equipment 1 is dispatched from the factory.Setting is in equipment when manufactureIt is set in process.It is set by the user after manufacture and is set during equipment use.
In another scheme, predetermined amount of time is to be not fixed value.
Being not fixed the determination method of value can be：A) scheme, at the time of initial time is that human body running starts, end timeAt the time of the prearranged multiple of heart rate when human heart rate is human body running beginning being got for photoelectricity heart rate sensor 11.OrB) scheme：At the time of initial time is still that human body running starts, end time is to get human heart rate to open higher than human body runningWhen the beginning at the time of predetermined difference value of heart rate.
It is fixed value for the prearranged multiple in a) scheme, such as 1.1 times or 1.2 times, can obtains and set in heart rateIt sets, i.e., is set in equipment process when standby 1 manufacture；It can also be set by the user, i.e., be used in equipment after manufactureIt is set in journey.
It is fixed value for the predetermined difference value in b) scheme, such as 10 beats/min or 20 beats/min, it can be in the heartRate is obtained when equipment 1 is dispatched from the factory and is set, i.e., is set in equipment process；It can also be set by the user, that is, set after manufactureIt is set during standby use.
For rate acquisition module 12 of running：In one scheme, running rate acquisition module 12 obtains in predetermined amount of timeRunning rate pass through：The distance between two points that GPS positioning periodically exports divided by the computation of Period are got.It is rightIn this scheme, the heart rate that photoelectricity heart rate sensor 11 obtains can be the average value of the heart rate in the period measured, with intoOne step excludes 11 error measured directly of photoelectricity heart rate sensor.
In another scheme, the running rate that running rate acquisition module 12 obtains in predetermined amount of time passes through：GPS positioningTwo points are periodically acquired with constant spacing, the time that constant spacing divided by the constant spacing are consumed calculates and gets.Equally go outThe heart that photoelectricity heart rate sensor 11 in the purpose for excluding 11 error measured directly of photoelectricity heart rate sensor, this programme obtainsRate is the average value of the heart rate measured in the period spacing spent time section.
Known predetermined amount of time, running rate and heart rate countershaft can increase at any time, and processing module 13 makes running speedThe corresponding table of rate and heart rate.Each numerical value of this table is relatively accurate, can be used as the photoelectricity outside predetermined amount of time during this time runningThe heart rate checking list of heart rate sensor 11.Processing module 13 can be central processing unit.
Heart rate output module 14 can be the heart rate output module 14 on existing wearable device, and difference lies in heart rate outputsHeart rate value information entrained by the signal source of module 14 has been subjected to correction.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from thisIt in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim instituteSubject to the range of restriction.