CN106405147B - A kind of ultrasonic transducer surveys wind array and its wind detection method - Google Patents

A kind of ultrasonic transducer surveys wind array and its wind detection method Download PDF

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Publication number
CN106405147B
CN106405147B CN201610958395.5A CN201610958395A CN106405147B CN 106405147 B CN106405147 B CN 106405147B CN 201610958395 A CN201610958395 A CN 201610958395A CN 106405147 B CN106405147 B CN 106405147B
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wind
indicate
time difference
ultrasonic transducer
angle
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CN106405147A (en
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行鸿彦
魏佳佳
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves

Abstract

The present invention provides a kind of ultrasonic transducer and surveys wind array and its wind detection method, wherein, the survey wind array includes main casing, the survey blower structure for supporting the linking arm of the main casing and being set on the main casing, it is equipped in the main casing and surveys wind-powered electricity generation road, it is described to survey the ultrasonic transducer that blower structure includes preset quantity, anchor tip and column arm are installed, wherein, the ultrasonic transducer of the preset quantity is divided into three to penetrating group, each to penetrate group be packaged in respective installation anchor tip, each installation anchor tip passes through the column arm respectively and is connected with the main casing, three installation anchor tips are in same level and constitute equilateral triangle.A kind of ultrasonic transducer provided by the invention surveys wind array and its wind detection method, can be improved and surveys wind precision.

Description

A kind of ultrasonic transducer surveys wind array and its wind detection method
Technical field
The present invention relates to meteorological element field of measuring technique, in particular to a kind of ultrasonic transducer surveys wind array and its survey Wind method.
Background technique
Measuring wind speed instrument application field is extensive, such as wind-force disaster alarm, wind-power electricity generation, environmental monitoring, navigation aviation, army Thing activity etc..Ultrasound windage loss consumption is small, and range is wide, and response is fast, and precision is high, and machinery can be overcome to survey wind is sluggish, precision is low etc. Defect will gradually replace tradition machinery and survey wind devices.
In a kind of current ultrasonic wind meter device, it can use two groups of ultrasonic probes vertically to penetrating structure as cross phase Friendship array, but structure shadow effect caused by by Karman vortex street and other turbulent flows when air is flowed around energy converter and pillar It influences seriously, to cause measurement result inaccurate;In addition, transmitting plate face and signal where ultrasonic probe in another wind measuring device Survey serious by Turbulent Flow Effects when big wind speed between reflection plate face, wind speed vertical section gradient velocity difference between two plates is big, can also make Measurement result inaccuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of ultrasonic transducers to survey wind array and its wind detection method, can be improved survey wind Precision.
To achieve the above object, the present invention provides a kind of ultrasonic transducer survey wind array, including described in main casing, support The linking arm of main casing and the survey blower structure being set on the main casing are equipped in the main casing and survey wind-powered electricity generation road, institute State the ultrasonic transducer, installation anchor tip and column arm for surveying that blower structure includes preset quantity, wherein the preset quantity Ultrasonic transducer is divided into three to group is penetrated, and is each packaged in respective installation anchor tip to penetrating group, each peace Dress anchor tip passes through the column arm respectively and is connected with the main casing, and three installation anchor tips are in same level Above and constitute equilateral triangle.
Further, the horizontal plane where three installation anchor tips is higher than the top cover of the main casing, three institutes It states between the horizontal plane and the top cover where installing anchor tip at a distance of 300 millimeters.
Further, the data communication that the bottom of the main casing is provided with extension mouth and is connected with the survey wind-powered electricity generation road Interface.
Further, digital compass and north pointer direction mark are additionally provided on the top cover.
Further, two neighboring is 200 millimeters to the spacing penetrated between group, the chip of each ultrasonic transducer The diameter of the Circular wafer for being 10 millimeters for diameter, the column arm and the installation anchor tip is 20 millimeters.
To achieve the above object, the application also provides any wind detection method, which comprises according to current wind direction with Three angles to the first side penetrated group in the equilateral triangle constituted, establish the corresponding current wind speed in each side with it is described Incidence relation between angle;Determine current time relationship value with the wind, and according to where the current time relationship value with the wind Range and the incidence relation of foundation, determine current wind direction and wind speed.
Further, it when the range of the angle is more than or equal to 0 ° and less than 20 °, builds according to the following equation Incidence relation between vertical current wind speed corresponding with the second side and the angle:
The incidence relation between current wind speed corresponding with third side and the angle is established according to the following equation:
Wherein, d indicates two neighboring to the spacing penetrated between group, tACIndicate the second side corresponding time difference with the wind Value, tCAIndicate the corresponding contrary wind time difference in second side, tCBIndicate the corresponding time difference with the wind in the third side, tBC Indicate the corresponding contrary wind time difference in the third side, vSoundIndicate the velocity of sound of ultrasonic wave, vWindCurrent wind speed is indicated, described in θ expression Angle.
Further, when the range of the angle be more than or equal to 20 ° and be less than or equal to 30 ° when, according to Following formula establish the incidence relation between current wind speed corresponding with the second side and the angle:
The incidence relation between current wind speed corresponding with the first side and the angle is established according to the following equation:
Wherein, d indicates two neighboring to the spacing penetrated between group, tACIndicate the second side corresponding time difference with the wind Value, tCAIndicate the corresponding contrary wind time difference in second side, tABIndicate the corresponding time difference with the wind in first side, tBA Indicate the corresponding contrary wind time difference in first side, vSoundIndicate the velocity of sound of ultrasonic wave, vWindCurrent wind speed is indicated, described in θ expression Angle.
Further, current wind direction and wind speed are determined according to the following equation:
Wherein, vWindIndicate current wind speed, θ indicates current wind direction and three to first penetrated in group equilateral triangle constituted The angle on side, d indicate two neighboring to the spacing penetrated between group, tACIndicate the corresponding time difference with the wind in second side, tCA Indicate the corresponding contrary wind time difference in second side, tCBIndicate the corresponding time difference with the wind in the third side, tBCIndicate institute State the corresponding contrary wind time difference in third side, tABIndicate the corresponding time difference with the wind in first side, tBAIndicate described first The corresponding contrary wind time difference in side.
Therefore the present invention uses the ultrasonic transducer of six transceivers, and independent three surveys wind path diameter is arranged, And according to different directions of flow, wind speed computation model is established, so as to combine the working characteristics of energy converter chip, is optimized The design for surveying wind array, reduces the influence of shadow effect, surveys wind precision to improve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the survey wind array that embodiment of the present invention provides;
Fig. 2 is the top view for the survey wind array that embodiment of the present invention provides;
Fig. 3 is the bottom view for the survey wind array that embodiment of the present invention provides;
Fig. 4 is the schematic diagram for the wind detection method that embodiment of the present invention provides;
Fig. 5 is the flow chart for the wind detection method that embodiment of the present invention provides.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality The attached drawing in mode is applied, the technical solution in the application embodiment is clearly and completely described, it is clear that described Embodiment is only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment party in the application Formula, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, is all answered When the range for belonging to the application protection.
It please refers to Fig.1 to Fig.3, the ultrasonic transducer survey wind array that the application embodiment provides, including main casing 9, The survey blower structure for supporting the linking arm 9 of the main casing 9 and being set on the main casing 8.It is equipped in the main casing Survey wind-powered electricity generation road (not shown), it is described survey blower structure include preset quantity ultrasonic transducer 10 to 15, installation anchor tip 1, 2,3 and column arm 4,5,6, wherein the ultrasonic transducer of the preset quantity is divided into three to group is penetrated, and each seals to penetrating group Loaded in respective installation anchor tip, each installation anchor tip passes through the column arm and 8 phase of main casing respectively Even, three installation anchor tips are in same level and constitute equilateral triangle.
In the present embodiment, the horizontal plane where three installation anchor tips 1,2,3 is higher than the main casing 8 Top cover 7, at a distance of 300 millimeters between the horizontal plane and the top cover 7 at three 1,2,3 places of installation anchor tips.
In the present embodiment, the bottom of the main casing 8 is provided with extension mouth 19 and is connected with the survey wind-powered electricity generation road Data communication interface 18.In this way, main casing it is intracorporal survey the wind speed that can will measure of wind-powered electricity generation road, wind direction value is connect by data communication Mouth 18 is sent to external information control cabinet.Developer can by extend 19 pairs of mouth the surveys wind arrays carry out upgrade debugging or Carry out secondary development.
In the present embodiment, digital compass 16 and north pointer direction mark 17 are additionally provided on the top cover 7.
In the present embodiment, two neighboring is 200 millimeters to the spacing penetrated between group, each ultrasonic transducer Chip be Circular wafer that diameter is 10 millimeters, the chip can obtain 12 ° or so of acoustic beam angle, the column arm and described The diameter for installing anchor tip is 20 millimeters.
Fig. 4 and Fig. 5 are please referred to, the application embodiment also provides a kind of wind detection method.The method may include following Step:
Step S1: the angle according to current wind direction and three to the first side penetrated in group equilateral triangle constituted is established Incidence relation between the corresponding current wind speed in each side and the angle;
Step S2: current time relationship value with the wind is determined, and according to the range where the current time relationship value with the wind And the incidence relation established, determine current wind direction and wind speed.
It specifically, can be as shown in Figure 4 equilateral so as to obtain by three to equivalent at A, tri- points of B, C of penetrating group Triangle, the spacing between three vertex is d, and dotted line AH is parallel with CB.In the present embodiment, actual measurement wind can be entered and is changed Energy device array is divided into three kinds of situations:
1, wind direction is vertical with triangle side.Time difference measured by remaining two groups of energy converter is identical at this time, orthogonal sets vIt is suitable =vIt is inverse, wherein vIt is suitableFor wind speed with the wind, vIt is inverseFor contrary wind wind speed.
2, wind direction is parallel with triangle side.Time difference measured by remaining two groups of energy converter is identical at this time, but parallel group vIt is suitable≠vIt is inverse
3,0 ° of 30 ° of < θ < of wind direction and triangle side angle.
In the present embodiment, it is assumed that current wind direction and 20 ° of < of 0 °≤θ of the side AB angle, then the side windward side energy converter will It is influenced by shadow effect.Two other side AC and BC and wind direction angle are respectively 20 ° of π/3- θ >, 2 π/20 ° of 3- θ > at this time.By Shadow effect Turbulent Flow Effects, measured time difference value is not used in the calculating of wind speed and direction value on the AB of path, suitable according to measuring on the AC of path Time value against the wind, can obtain:
Relationship between time and wind speed can similarly be obtained on the BC of path
Wherein, AB can be the first side of equilateral triangle, and AC can be the second side, and BC can be third side, and d indicates phase Adjacent two to the spacing penetrated between group, tACIndicate the corresponding time difference with the wind in second side, tCAIndicate second side pair The contrary wind time difference answered, tCBIndicate the corresponding time difference with the wind in the third side, tBCIndicate that the third side is corresponding inverse Wind time difference, vSoundIndicate the velocity of sound of ultrasonic wave, vWindIndicate that current wind speed, θ indicate the angle.
It is obtained by equation group (1), (2)
Enabling formula (3), (4) equal sign right side is respectively N1And Q1, then have
Assuming that wind angle and 20 °≤θ≤30 ° of the side AB angle, then can be ignored influence of the shadow effect to path AB.AB at this time Relationship is between time and wind speed on path
It is obtained by equation group (1), (6)
Enabling formula (7), (8) equal sign right side is respectively N2And Q2, obtain
For three survey wind path diameters along downwind and practical wind direction angle, phase difference of pi/3 between minimum angle and maximum angular are then suitable Wind time relationshipEnabling the time relationship value with the wind is R, final wind angle and air speed value are as follows:
In this way, different calculating can be arranged for different wind directions by mutually independent three paths of equilateral triangle array Model improves to reduce shadow effect interference and surveys wind precision.
Therefore the present invention uses the ultrasonic transducer of six transceivers, and independent three surveys wind path diameter is arranged, And according to different directions of flow, wind speed computation model is established, so as to combine the working characteristics of energy converter chip, is optimized The design for surveying wind array, reduces the influence of shadow effect, surveys wind precision to improve.
Those skilled in the art are supplied to the purpose described to the description of the various embodiments of the application above.It is not It is intended to exhaustion or be not intended to and limit the invention to single disclosed embodiment.As described above, the application's is various Substitution and variation will be apparent for above-mentioned technology one of ordinary skill in the art.Therefore, although specifically begging for Some alternative embodiments are discussed, but other embodiment will be apparent or those skilled in the art are opposite It is easy to obtain.The application is intended to include all substitutions of the invention discussed herein, modification and variation, and falls in Other embodiment in the spirit and scope of above-mentioned application.
Each embodiment in this specification is described in a progressive manner, same and similar between each embodiment Part may refer to each other, what each embodiment stressed is the difference with other embodiments.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that there are many deformations by the application With variation without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application Spirit.

Claims (5)

1. a kind of ultrasonic transducer surveys wind array, including main casing, supports the linking arm of the main casing and be set to institute The survey blower structure on main casing is stated, is equipped in the main casing and surveys wind-powered electricity generation road, the blower structure of surveying includes the super of preset quantity Acoustic wave transducer, installation anchor tip and column arm, wherein the ultrasonic transducer of the preset quantity is divided into three to penetrating Group, each to penetrate group be packaged in respective installation anchor tip, each installation anchor tip passes through the column respectively Arm is connected with the main casing, and three installation anchor tips are in same level and constitute equilateral triangle;
It is characterized in that, the wind detection method that ultrasonic transducer is surveyed in wind array includes:
Angle according to current wind direction and three to the first side penetrated in group equilateral triangle constituted, it is right respectively to establish each side The incidence relation between current wind speed and the angle answered;
Determine current time relationship value with the wind, and according to the institute of range and foundation where the current time relationship value with the wind Incidence relation is stated, determines current wind direction and wind speed;
When the range of the angle is more than or equal to 0 ° and less than 20 °, establish and the second side pair according to the following equation The incidence relation between current wind speed and the angle answered:
The incidence relation between current wind speed corresponding with third side and the angle is established according to the following equation:
Wherein, d indicates two neighboring to the spacing penetrated between group, tACIndicate the corresponding time difference with the wind in second side, tCA Indicate the corresponding contrary wind time difference in second side, tCBIndicate the corresponding time difference with the wind in the third side, tBCIndicate institute State the corresponding contrary wind time difference in third side, vSoundIndicate the velocity of sound of ultrasonic wave, vWindIndicate that current wind speed, θ indicate the angle;
When the range of the angle be more than or equal to 20 ° and be less than or equal to 30 ° when, according to the following equation establish with Incidence relation between the corresponding current wind speed in second side and the angle:
The incidence relation between current wind speed corresponding with the first side and the angle is established according to the following equation:
Wherein, d indicates two neighboring to the spacing penetrated between group, tACIndicate the corresponding time difference with the wind in second side, tCA Indicate the corresponding contrary wind time difference in second side, tABIndicate the corresponding time difference with the wind in first side, tBAIndicate institute State the corresponding contrary wind time difference in the first side, vSoundIndicate the velocity of sound of ultrasonic wave, vWindIndicate that current wind speed, θ indicate the angle;
Current wind direction and wind speed are determined according to the following equation:
Wherein, vWindIndicate current wind speed, θ indicates current wind direction and three to the first side penetrated in group equilateral triangle constituted Angle, d indicate two neighboring to the spacing penetrated between group, tACIndicate the corresponding time difference with the wind in second side, tCAIt indicates The corresponding contrary wind time difference in second side, tCBIndicate the corresponding time difference with the wind in the third side, tBCIndicate described The corresponding contrary wind time difference in three sides, tABIndicate the corresponding time difference with the wind in first side, tBAIndicate first side pair The contrary wind time difference answered, R are time relationship value with the wind.
2. ultrasonic transducer according to claim 1 surveys wind array, which is characterized in that three installation anchor tips The horizontal plane at place be higher than the main casing top cover, three it is described installation anchor tips where horizontal plane and the top cover it Between at a distance of 300 millimeters.
3. ultrasonic transducer according to claim 1 surveys wind array, which is characterized in that the bottom of the main casing is arranged The data communication interface for having extension mouth and being connected with the survey wind-powered electricity generation road.
4. ultrasonic transducer according to claim 2 surveys wind array, which is characterized in that be additionally provided with number on the top cover Word compass and north pointer direction mark.
5. ultrasonic transducer according to claim 1 surveys wind array, which is characterized in that two neighboring to penetrating between group Spacing is 200 millimeters, and the chip of each ultrasonic transducer is the Circular wafer that diameter is 10 millimeters, the column arm and institute The diameter for stating installation anchor tip is 20 millimeters.
CN201610958395.5A 2016-10-28 2016-10-28 A kind of ultrasonic transducer surveys wind array and its wind detection method Active CN106405147B (en)

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CN107576819B (en) * 2017-08-29 2019-11-15 吉林大学 A kind of method and system measuring wind speed and direction

Citations (5)

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Publication number Priority date Publication date Assignee Title
US5343744A (en) * 1992-03-06 1994-09-06 Tsi Incorporated Ultrasonic anemometer
CN101750516A (en) * 2009-12-24 2010-06-23 北京汉能华科技有限公司 Anemometer and method for measuring wind speed and wind direction
CN103197096A (en) * 2013-03-14 2013-07-10 甘肃省电力公司 Wind power plant ultrasonic wind speed detection method and device
CN205139167U (en) * 2015-11-30 2016-04-06 湖南赛能环保科技有限公司 Ultrasonic wind meter
CN205483056U (en) * 2016-02-01 2016-08-17 南京信息工程大学 Anemometry system based on ultrasonic transducer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343744A (en) * 1992-03-06 1994-09-06 Tsi Incorporated Ultrasonic anemometer
CN101750516A (en) * 2009-12-24 2010-06-23 北京汉能华科技有限公司 Anemometer and method for measuring wind speed and wind direction
CN103197096A (en) * 2013-03-14 2013-07-10 甘肃省电力公司 Wind power plant ultrasonic wind speed detection method and device
CN205139167U (en) * 2015-11-30 2016-04-06 湖南赛能环保科技有限公司 Ultrasonic wind meter
CN205483056U (en) * 2016-02-01 2016-08-17 南京信息工程大学 Anemometry system based on ultrasonic transducer

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