阅读说明：本技术 一种基于气压传感器测量自行车行驶距离的方法及自行车 (A kind of method and bicycle based on baroceptor measurement bicycle running distance ) 是由 巩向辉 方华斌 付博 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种基于气压传感器测量自行车行驶距离的方法,具体地,提供第一气压传感器和第二气压传感器,所述第一气压传感器和第二气压传感器设置在同一转动部件上；计自行车的行驶时间为第一时刻至第二时刻,获得在所述第一时刻至第二时刻内所述第一气压传感器与第二气压传感器的气压差值ΔP；根据所述气压差值ΔP的周期变化次数,得到所述转动部件在所述第一时刻至第二时刻内转动的圈数；根据所述圈数,得到自行车的行驶距离。本发明通过记录两个气压传感器的气压差值,得到自行车的行驶距离。(The invention discloses a kind of methods based on baroceptor measurement bicycle running distance, specifically, provide the first baroceptor and the second baroceptor, first baroceptor and the second baroceptor are arranged on same rotatable parts；The running time for counting bicycle is the first moment to the second moment, obtains the air pressure difference DELTA P of first baroceptor and the second baroceptor within first moment to the second moment；According to the mechanical periodicity number of the air pressure difference DELTA P, the circle number that the rotatable parts rotate within first moment to the second moment is obtained；According to the circle number, the operating range of bicycle is obtained.The present invention obtains the operating range of bicycle by the air pressure difference of two baroceptors of record.)

1. a kind of method based on baroceptor measurement bicycle running distance, which is characterized in that

First baroceptor and the second baroceptor are provided,

First baroceptor and the second baroceptor are arranged on same rotatable parts；

The running time for counting bicycle is the first moment to the second moment, is obtained described within first moment to the second moment The air pressure difference DELTA P of first baroceptor and the second baroceptor；

According to the mechanical periodicity number of the air pressure difference DELTA P, the rotatable parts are obtained when first moment is to second The circle number rotated in carving；

According to the circle number, the operating range of bicycle is obtained.

2. the method according to claim 1, wherein first baroceptor and the second baroceptor phase It is centrosymmetric distribution for the center of the rotatable parts.

3. the method according to claim 1, wherein provide ppu, the ppu with it is described First baroceptor and the electrical connection of the second baroceptor, the ppu are configurable for recording the draught head It is worth Δ P.

4. the method according to claim 1, wherein recording the air pressure according to the air pressure difference DELTA P is obtained Occurs the number being most worth in difference DELTA P；According to the number that appearance is most worth, the circle number of the rotatable parts rotation is obtained.

5. method according to any of claims 1-4, which is characterized in that the rotatable parts are wheel rim, described the One baroceptor and the second baroceptor are fixed on the wheel rim.

6. according to the method described in claim 5, it is characterized in that, the circle number of wheel rim rotation is multiplied by the bike tire Cover tire perimeter obtain the bicycle running distance.

7. method according to any of claims 1-4, which is characterized in that the rotatable parts are foot pedal, described First baroceptor and the second baroceptor are separately fixed on the foot pedal.

8. the method according to the description of claim 7 is characterized in that the foot pedal rotation circle number multiplied by with the foot pedal The perimeter of the gear of connection obtains the bicycle running distance multiplied by transmission ratio coefficient.

9. according to the method described in claim 8, it is characterized in that, the transmission ratio coefficient is the tooth connecting with the foot pedal The ratio of the diameter of wheel and the cycle casing diameter.

10. the method according to claim 1, wherein the rotatable parts include flywheel, chain wheel.

11. a kind of bicycle, which is characterized in that including bicycle body, the first baroceptor and the second baroceptor, institute It states the first baroceptor and the second baroceptor is arranged on same rotatable parts；

First baroceptor and the second baroceptor are configurable for the operating range of measurement bicycle body.

Technical field

The present invention relates to ranging fields, more particularly to a kind of side based on baroceptor measurement bicycle running distance Method and a kind of bicycle.

Background technique

In the prior art, baroceptor is mainly used to measure the pressure size of gas, usual using baroceptor For measuring the variation of weather and realizing the measurement of height above sea level using the corresponding relationship of air pressure and height above sea level.

In the prior art simultaneously, measure bicycle running apart from when the method that generallys use be: utilize GPS record row Distance or velocity sensor measurement operating range are sailed, but does not directly adopt baroceptor measurement in the prior art voluntarily Vehicle operating range.

For this purpose, the present invention provide a kind of method based on baroceptor measurement bicycle running distance and it is a kind of voluntarily Vehicle.

Summary of the invention

It is an object of the present invention to provide it is a kind of based on baroceptor measurement bicycle running distance method and A kind of bicycle.

According to the first aspect of the invention, a kind of method based on baroceptor measurement bicycle running distance is provided, It is characterized in that,

First baroceptor and the second baroceptor are provided,

First baroceptor and the second baroceptor are arranged on same rotatable parts；

The running time for counting bicycle is the first moment to the second moment, is obtained within first moment to the second moment The air pressure difference DELTA P of first baroceptor and the second baroceptor；

According to the mechanical periodicity number of the air pressure difference DELTA P, the rotatable parts are obtained at first moment to The circle number rotated in two moment；

According to the circle number, the operating range of bicycle is obtained.

Optionally, during first baroceptor and the second baroceptor relative to the center of the rotatable parts be in The heart is symmetrical.

Optionally, ppu, the ppu and first baroceptor and the second air pressure transmission are provided Sensor electrical connection, the ppu are configurable for recording the air pressure difference DELTA P.

Optionally, it according to the air pressure difference DELTA P is obtained, records in the air pressure difference DELTA P and the number being most worth occurs；Root According to the number that appearance is most worth, the circle number of the rotatable parts rotation is obtained.

Optionally, the rotatable parts are wheel rim, and first baroceptor and the second baroceptor are fixed on institute It states on wheel rim.

Optionally, the circle number of the wheel rim rotation obtains the cyclery multiplied by the cover tire perimeter of the bike tire Sail distance.

Optionally, the rotatable parts are foot pedal, and first baroceptor and the second baroceptor are solid respectively It is scheduled on the foot pedal.

Optionally, the circle number of the foot pedal rotation is multiplied by the perimeter for the gear connecting with the foot pedal multiplied by transmission The bicycle running distance is obtained than coefficient.

Optionally, the transmission ratio coefficient be the gear being connect with the foot pedal diameter and the cycle casing it is straight The ratio of diameter.

Optionally, the rotatable parts include flywheel, chain wheel.

According to a further aspect of the invention, a kind of bicycle is provided, the bicycle includes bicycle body, the first air pressure transmission Sensor and the second baroceptor, first baroceptor and the second baroceptor are arranged on rotatable parts；

First baroceptor and the second baroceptor be configurable for measurement bicycle body traveling away from From.

Beneficial effects of the present invention: the present invention provides a kind of sides based on baroceptor measurement bicycle running distance Method is arranged baroceptor in the rotatable parts of bicycle, by recording the air pressure difference of two baroceptors, obtains voluntarily The operating range of vehicle.Measurement method of the present invention is simple, while overcoming technology prejudice, realize by baroceptor measurement travel away from From.

By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its Advantage will become apparent.

Detailed description of the invention

It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even With its explanation together principle for explaining the present invention.

Fig. 1 is the schematic diagram of present invention measurement bicycle running distance method.

Fig. 2 is the rough schematic view of Fig. 1 schematic diagram.

Fig. 3 is the function relation curve figure of air pressure difference DELTA P and θ in the present invention.

Specific embodiment

Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally The range of invention.

Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention And its application or any restrictions used.

Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable In the case of, the technology, method and apparatus should be considered as part of specification.

It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.

According to an embodiment of the present invention, a kind of method based on baroceptor measurement bicycle running distance is provided, It the described method comprises the following steps:

First baroceptor and the second baroceptor are provided,

First baroceptor and the second baroceptor are arranged on same rotatable parts；

The running time for counting bicycle is the first moment to the second moment, is obtained at first moment to the second moment It is interior, the air pressure difference DELTA P of first baroceptor and the second baroceptor；

According to the mechanical periodicity number of the air pressure difference DELTA P, the rotatable parts are obtained at first moment to The circle number rotated in two moment；

According to the circle number, the operating range of the bicycle is obtained.

In this example, the first baroceptor and the second baroceptor are set on the rotatable parts of bicycle, obtained The air pressure difference DELTA P of first baroceptor and the second baroceptor, and then the air pressure difference DELTA P by obtaining is rotated The circle number that component rotates within a period obtains the distance that bicycle travels within this period by the circle number of rotation.

Preferably, ppu, the ppu and first baroceptor and the second air pressure transmission are provided Sensor electrical connection, the ppu are configurable for recording the air pressure difference DELTA P.

Preferably, when first baroceptor and the second baroceptor are in relative to the center of the rotatable parts When central symmetry is distributed, according to the mechanical periodicity number for obtaining the air pressure difference DELTA P, specifically, ppu records institute It states in air pressure difference DELTA P and the number being most worth occurs, according to the number that appearance is most worth, obtain the circle number of the rotatable parts rotation.

There is the number of minimum value for example, recording in the air pressure difference DELTA P, according to there is the number of minimum value, obtains The circle number of the rotatable parts rotation.

Or record in the air pressure difference DELTA P and the number of maximum value occur, according to there is the number of maximum value, obtain described The circle number of rotatable parts rotation.

Optionally, when first baroceptor and the second baroceptor are in relative to the center of the rotatable parts When non-centrosymmetry is distributed, according to the mechanical periodicity number for obtaining the air pressure difference DELTA P, specifically, ppu record There is the number of a certain numerical value in the air pressure difference DELTA P, according to the number for a certain numerical value occur, obtains the rotatable parts and turn Dynamic circle number.

Preferably, the rotatable parts are the component that can drive the bicycle running.The rotatable parts can be Wheel rim, foot pedal, flywheel or chain wheel etc..

According to one embodiment of present invention, a kind of side based on baroceptor measurement bicycle running distance is provided Method.Wherein, in this example, the rotatable parts are wheel rim, and first baroceptor and the second baroceptor are fixed on On the wheel rim, the circle number of the wheel rim rotation obtains the bicycle running distance multiplied by the cycle casing perimeter.

Specifically, as shown in Figure 1, providing the first baroceptor 101 and the second baroceptor 102, first gas The center symmetric setting of the wheel rim 100 of 102 relative proper motion vehicle of pressure sensor 101 and the second baroceptor, specifically, described One baroceptor 101 and the second baroceptor 102 are fixed on the wheel rim.

For example, first baroceptor 101 and the second baroceptor 102 are fixed at the outer ring side of wheel rim Edge, the outer ring are configurable for the tire inner ring of stationary bicycle.

Central symmetry point due to first baroceptor 101 and the second baroceptor relative to the wheel rim Cloth, therefore the first baroceptor and the second baroceptor install in place, form range difference.Therefore the present invention uses two The operating range and travel speed of a baroceptor measurement bicycle.

The wheel rim 100 of 102 relative proper motion vehicle of first baroceptor 101 and the second baroceptor of the present invention simultaneously Center symmetric setting, 2 baroceptors work at the same time and do difference calculating, can eliminate external air flow disturbance, temperature jump Etc. measurement error caused by reasons.

The bicycle running time is the first moment to the second moment, and in this example, first moment is recorded as T0 Moment, the second moment are recorded as the T1 moment；Obtain first baroceptor and second within the T0 moment to T1 moment The air pressure difference DELTA P of baroceptor；

For instance, it is preferred that the relationship of air pressure difference DELTA P and the second angle θ of the first baroceptor rotation are as follows:

Δ P=kdsin (c+ θ) (1)

Wherein, k=-12Pa/m, d indicate the wheel diameter；C indicates first baroceptor at the T0 moment Angle between reference point is first angle；θ indicates that at the T1 moment, first baroceptor rotates second angle； Wherein k, d, c are constant.

The functional relation that can be seen that Δ P and θ from formula (1) is SIN function, wherein the most value of air pressure difference DELTA P For kh, as shown in figure 3, there is wave crest (maximum value) kh or trough (minimum value)-kh.

In this example, it can record in the air pressure difference DELTA P according to the air pressure difference DELTA P is obtained and occur wave crest Number obtains the circle number of the rotatable parts rotation according to there is the number of wave crest.There is primary wave peak number value, can recognize It is had rotated one week (2 π) for wheel rim.

Wherein the reference point can be as shown in Fig. 2, centered on taking turns circle center point, establish right angle in the central point Coordinate system, wherein X-axis, Y-axis are respectively the spoke being fixed on the wheel rim.Therefore can using a spoke on wheel rim as Reference point.Record the angle of the first baroceptor Yu spoke (as a reference point) part.

Optionally, the reference point can also be that mark point, the mark point are that wheel rim outer ring edge is arranged in Point.

Optionally, when the first baroceptor and the second baroceptor are in asymmetric setting about the center of wheel rim, Although air pressure difference DELTA P and the relationship of second angle θ of the first baroceptor rotation are unsatisfactory for formula (1), but can also be with According to the number that numerical value a certain in air pressure difference DELTA P occurs, the second angle θ of the first baroceptor rotation is obtained, and then is obtained The circle number for obtaining wheel rim rotation obtains the distance of bicycle running according to the circle number that wheel rim rotates.

In this example, first angle c (c angle is measured with radian here), second angle θ, θ angle uses arc here Unit is spent to measure), illustrate the concept of θ angle: wheel rim rotates 1/4 week (circle), θ=pi/2.Rotation 1/2 week, θ= π.Rotation 1 week, the π of θ=2.Rotation 2 weeks, the π ... of θ=4 rotates n weeks, θ=2n π.

It according to the mechanical periodicity number of air pressure difference DELTA P, obtains at the T1 moment, first baroceptor rotation the Two angle, θs rotate second angle θ according to the first baroceptor, obtain the circle number n of wheel rim rotation；

The wherein relationship of the second angle and turnning circle are as follows:

θ=2n π (2)

Wherein, θ indicates second angle, and n indicates wheel rim turnning circle, and n is positive number；

Wherein, the relationship of the turnning circle and bicycle running distance are as follows:

S=n π D (3)

Wherein, S indicates bicycle running distance；N indicates wheel rim turnning circle, and n is positive number；D indicates bike tire Cover tire diameter.

The ppu is electrically connected with first baroceptor and the second baroceptor, the external treatment Device is configurable in the air pressure difference DELTA P and formula (1) that read first baroceptor and the second baroceptor There is the number of wave crest or trough, by the reading wave crest or the number of trough, the circle number n that record wheel rim rotates, specifically, The ppu reads the number of the wave crest or trough, and the circle number n with wheel rim rotation is in one-to-one relationship.

For example, bicycle rim travels a distance, travel this section apart from when bicycle rim have rotated whole 5 circle and 1/ 4 weeks (circle), the number of full circle of bicycle wheel rim rotation in the process of moving is recorded by ppu, by reading air pressure difference Δ P calculates the non-whole circle of bicycle wheel rim rotation in the process of moving.

Optionally, due to generating the external factor or ppu itself sensitivity etc. such as vibration during bicycle running Inside is because of reason, to guarantee number statistical accuracy, it is believed that when ppu record data are > 0.9kh, just There is wave crest and counts once, also wheel rim rotation one is enclosed and count and is primary.

When needing to measure the travel speed of bicycle, operating range S can be passed through by recording running time T1-T0 With the relationship of running time, travel speed is obtained.

In this example, it is preferred that the air pressure difference DELTA P of first baroceptor 101 and the second baroceptor 101 It indicates are as follows:

P1-P2=Δ P=k Δ h (4)

Wherein, P1 indicates the readings of the first baroceptor 101；P2 indicates the readings of the second baroceptor 102；K=- 12Pa/m, Δ h indicate the sum of the distance of first baroceptor 101 and the second baroceptor 102 in the vertical direction.

Wherein " vertical direction " is the Y direction in Fig. 2.

The sum of the distance Δ h of first baroceptor 101 and the second baroceptor 102 in the vertical direction is indicated Are as follows:

Δ h=dsin (c+ θ) (5)

Wherein, d indicates the wheel diameter, and c was indicated at the T0 moment, between first baroceptor and reference point Angle be first angle；θ indicates that at the T1 moment, first baroceptor rotates second angle, and wherein Δ h is in T1 Moment, the sum of the distance Δ h of the first baroceptor 101 and the second baroceptor 102 in the vertical direction.

According to an embodiment of the present invention, a kind of method based on baroceptor measurement bicycle running distance is provided. In this example, the rotatable parts are foot pedal, and first baroceptor and the second baroceptor are separately fixed at institute It states on foot pedal, the circle number of the foot pedal rotation is multiplied by the perimeter for the gear connecting with the foot pedal multiplied by transmission ratio system Number obtains the bicycle running distance.The transmission ratio coefficient is the diameter and bicycle for the gear connecting with the foot pedal The ratio of cover tire diameter.

Specifically, the first baroceptor and the second baroceptor, first baroceptor and the second gas are provided Pressure sensor is respectively fixedly disposed on two foot pedals 103 of bicycle；First baroceptor and the second air pressure transmission The air pressure difference of sensor is Δ P；

The bicycle running time is the first moment to the second moment, and in this example, first moment is recorded as T0 Moment, the second moment are recorded as the T1 moment；Obtain first baroceptor and second within the T0 moment to T1 moment The air pressure difference DELTA P of baroceptor；

For instance, it is preferred that the relationship of air pressure difference DELTA P and the second angle θ of the first baroceptor rotation are as follows:

Δ P=kdsin (c+ θ) (1)

Wherein, k=-12Pa/m, d indicate the length of two pedal cranks 104 of connection；C indicate at the T0 moment, Angle between first baroceptor and reference point is first angle；θ indicates first air pressure transmission at the T1 moment Sensor rotates second angle；Wherein k, d, c are constant.

The functional relation that can be seen that Δ P and θ from formula (1) is SIN function, wherein the most value of air pressure difference DELTA P For-kh, as shown in figure 3, there is wave crest (maximum value) kh or trough (minimum value)-kh.

For example, can record in the air pressure difference DELTA P according to the air pressure difference DELTA P is obtained and the number of wave crest occur, According to there is the number of wave crest, the circle number of the foot pedal rotation is obtained.There is primary wave peak number value, can think that wheel rim turns It has moved one week (2 π).

It according to air pressure difference DELTA P, obtains at the T1 moment, first baroceptor rotates second angle θ, according to the One baroceptor rotates second angle θ, obtains the circle number n of the gear connecting with foot pedal rotation；

The wherein relationship of the second angle and turnning circle are as follows:

θ=2n π (2)

Wherein, θ indicates second angle, and n indicates the circle number rotated with the foot pedal, and n is positive number；

Wherein, the relationship of the turnning circle and bicycle running distance are as follows:

S=n π D.i (3)

Wherein, S indicates bicycle running distance；N indicates the circle number of foot pedal rotation, and n is positive number；D is indicated and the foot The gear diameter of pedal connection, i indicate the diameter for the gear connecting with the foot pedal and the ratio of cycle casing diameter.

When needing to measure the travel speed of bicycle, operating range S can be passed through by recording running time T1-T0 With the relationship of running time, travel speed is obtained.

In one example, the rotatable parts further include flywheel or chain wheel.Specifically, by the first baroceptor and Two baroceptors are arranged on flywheel or chain wheel, according to the air pressure difference DELTA of the first baroceptor and the second baroceptor The mechanical periodicity number of P obtains the circle number that flywheel or chain wheel rotate within the first moment to the second moment in bicycle；According to institute Circle number is stated, the bicycle running distance is obtained.

Optionally, first baroceptor and the second baroceptor use MEMS baroceptor.Wherein MEMS Baroceptor has many advantages, such as small size, small power consumption, at low cost, is widely used on consumer electronics product.When MEMS gas Pressure sensor be applied on bicycle for measure bicycle running apart from when, will not to the traveling of bicycle formed hinder simultaneously MEMS baroceptor is easy for installation.

According to a further aspect of the invention, a kind of bicycle is provided, the bicycle includes bicycle body, the first air pressure transmission Sensor and the second baroceptor, first baroceptor and the second baroceptor are arranged on same rotatable parts, First baroceptor and the second baroceptor are fixed on the wheel rim；First baroceptor and Two baroceptors are configurable for the operating range of measurement bicycle body.

Although some specific embodiments of the invention are described in detail by example, the skill of this field Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair Bright range is defined by the following claims.