CN105466419A - Sensing array location system - Google Patents

Sensing array location system Download PDF

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Publication number
CN105466419A
CN105466419A CN201510814181.6A CN201510814181A CN105466419A CN 105466419 A CN105466419 A CN 105466419A CN 201510814181 A CN201510814181 A CN 201510814181A CN 105466419 A CN105466419 A CN 105466419A
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sensor
signal
sensing array
sensor array
sensors
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CN105466419B (en
Inventor
韩志武
陈道兵
张俊秋
王可军
宋洪烈
牛士超
侯涛
叶军峰
尹维
宋丽敏
杨明康
孙楚萍
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Jilin University
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Jilin University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention discloses a sensing array location system, which comprises a sensing array, a sensor signal acquisition device and a processing circuit. The sensing array is composed of eight sensors. Each sensor has three one-way flow sensors. The eight sensors are arranged in the shape of scorpion chelicerae. The sensing array and the sensor signal acquisition device are in signal connection. The sensor signal acquisition device and the processing circuit are in signal connection. By the system, fluid signal excitation source position can be accurately obtained, and error accumulation will not be caused. The system can be widely applied in location of fluid signal excitation source.

Description

A kind of sensor array positioning system
Technical field
The invention belongs to sensor field, be specifically related to a kind of fluid signal driving source sensor array positioning system and method.
Background technology
Convection cell signal driving source location tool is of great significance.Keep the pressure in airship cabin normal, need to hunt leak to cabin body, accurately detect small leak rate flow and small opening position, this is particularly important to the manned spaceship of long-time running; For the leakage of toxic and harmful, if can locating leaks position early, will be conducive to reducing leakage rate, thus reduce the infringement of harmful gas to environment and people's lives and properties.
At present, main detection of gas flow rate method has: mechanical type detection of gas flow rate (comprise diaphragm type gas flow detect and turbine type detection of gas flow rate), hot line hot diaphragm type detection of gas flow rate (HWA) (comprising hot line instrument and the thermal type gas quality flow detection based on microelectromechanical systems (MEMS)), ultrasonic and laser dopper flowmeter flow rate detection method etc.But above method is all the detection to uninterrupted in actual application, and can only carry out rough location for fluid signal driving source.
Biology defines a lot of structure cleverly in very long evolutionary process, for bionics fiber provides outstanding source.The perception of the acumen that the flow that the legendary venomous insect hair on scorpion chelicera surface is extremely small to surrounding air has, and these legendary venomous insect feel of wool receivers present certain aligned transfer on its chelicera.Scorpion can not only be perceived prey by the legendary venomous insect feel of wool receiver on its chelicera surface and can be positioned prey.The present invention is on the basis to scorpion body surface legendary venomous insect feel of wool device array location prey, based on the fluid signal driving source alignment sensor array of MEMS technology research and development, has that volume is little, lightweight, highly sensitive, measuring accuracy is high, be easy to the advantages such as batch production.
Summary of the invention
Therefore, the object of the invention is, a kind of sensor array positioning system and method are provided.This sensor array can effective spot fluids signal driving source.The present invention is by sensor array module, and collecting sensor signal module, processing circuit module forms.
Concrete technical scheme of the present invention is as follows: array arrangement mode of the present invention is the arrangement mode of the legendary venomous insect hair sensing organ copied on scorpion chelicera.Array of the present invention is made up of eight groups of unidirectional flow sensors, is numbered A-H respectively, and its direction is for determining direction.Often organize and be made up of three unidirectional flow sensors, being numbered 1-3 respectively.This sensor array is placed in flow field, flow velocity signal is converted into electric signal by unidirectional flow sensor, again by the electric signal size of collecting sensor signal module acquires eight groups of unidirectional flow sensors, then averaged to often organizing signal flow velocity size by processing circuit module, finally again by processing circuit module to these eight values by arranging from big to small.Maximum and the second largest determined direction of unidirectional flow sensor of flow speed value is designated as principal direction, the third-largest and the fourth-largest determined direction of unidirectional flow sensor of flow speed value is time direction, by its flow speed value size compared with principal direction flow speed value size, the ratio obtained is multiplied by 45 °, can obtain principal direction required to secondary direction deflection number.
A kind of sensor array positioning system of the present invention comprises: sensor array module, collecting sensor signal module, processing circuit module.Sensor array module copys the arrangement mode arrangement of scorpion legendary venomous insect hair receptor on scorpion chelicera to form.Collecting sensor signal module effectively can gather the flow velocity size of unidirectional flow sensor, and processing circuit module can effectively process flow velocity size.Sensor array module is made up of eight groups of unidirectional flow sensors, these eight groups of unidirectional flow sensors, and wherein A with F, B with G, C with H, D with E determined flow velocity direction are identical.
Beneficial effect of the present invention:
1. to realize cost low in the present invention, is beneficial to input daily use.The sensor that positioning system adopts can be hot wire sensor or mechanical sensor, and compared to the doppler sensor of laser or sound wave type, cost reduces greatly, is beneficial to input volume production.
2. the present invention can obtain the position of fluid signal driving source comparatively accurately, does not produce deviation accumulation, simplicity of design, can be widely used in the location of fluid signal driving source.
Accompanying drawing explanation
Fig. 1 is sensor array schematic diagram of the present invention.
Fig. 2 is unidirectional flow sensor schematic diagram.
Fig. 3 is sensor array positioning embodiment schematic diagram of the present invention.
Embodiment:
For making a kind of sensor array positioning system of the present invention and method clearly understand, once in conjunction with specific embodiments, the present invention is described in more detail.
As Fig. 1, a kind of sensor array positioning system, comprising: sensor array module 1, collecting sensor signal module 2, processing circuit module 3.Wherein sensor array module 1 is often organized three unidirectional flow sensors arranged by unified direction by eight groups and is formed.Collecting sensor signal module 2 and processing circuit module 3 all can be common signal acquisition module and processing circuit module.
As Fig. 2, unidirectional flow sensor of the present invention is for hot line air velocity transducer, when flow velocity and the type unidirectional flow velocity sensor vertical formula, its heat dissipation capacity and exposure level the most abundant, flow speed value namely measured by it is maximum, and when flow velocity is mutually not vertical with hot line, then heat dissipation capacity minimizing, thus the size of degree of testing the speed less.As Fig. 3, when there being flow velocity signal driving source, different towards unidirectional flow sensor detected by velocity amplitude vary in size.Often organize sensor obtain the large I of average velocity by formulae discovery below:
V i = V i 1 + V i 2 + V i 3 3 , ( j = A , B , ... , H ) - - - ( 1 )
And then by obtained V a, V b..., V haccording to order arrangement from big to small.V in this example a>V f>V b>V g.
Get V a, V fdirection be principal direction, V band V gfor secondary direction.Principal direction needs can be expressed as to secondary direction inclination angle size:
By the drift angle size that obtains, we just can determine the direction of fluid mechanism signal source.Because the position of this signal source is determined by two principal directions, the principal direction being d for A and F two distance is in this example determined.Then by the distance of the sensor group in leg-of-mutton cosine law determination signal driving source and a certain principal direction, can be calculated with the distance of signal source apart from A group and F group sensor:
Wherein L 1for signal source is to the distance of A group sensor, L 2for signal source is to the distance of F group sensor.

Claims (2)

1. a sensor array positioning system, it is characterized in that: include sensor array (1), collecting sensor signal device (2), treatment circuit (3), sensor array (1) is made up of eight groups of sensors (11), often organize sensor and there are three unidirectional flow sensors (111), the spread pattern of eight groups of sensors (11) imitates scorpion chelicera shape, sensor array (1) is connected with collecting sensor signal device (2) signal, and collecting sensor signal device (2) is connected with treatment circuit (3) signal.
2. a kind of sensor array positioning system according to claim 1, is characterized in that: described unidirectional flow sensor (111) is hot wire sensor or mechanical sensor.
CN201510814181.6A 2015-11-21 2015-11-21 A kind of sensor array alignment system Active CN105466419B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048974A (en) * 2021-03-17 2021-06-29 吉林大学 Bionic positioning device and using method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100126268A1 (en) * 2007-04-02 2010-05-27 Greg Baily Fluid level sensor
CN203650537U (en) * 2013-12-04 2014-06-18 严逢辉 Gripping device for gripping open thin wall articles
CN104139863A (en) * 2013-05-07 2014-11-12 波音公司 Methods and apparatus to determine aircraft flight conditions
CN104848852A (en) * 2015-06-10 2015-08-19 刘述亮 System and method for locating annular sensing array

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100126268A1 (en) * 2007-04-02 2010-05-27 Greg Baily Fluid level sensor
CN104139863A (en) * 2013-05-07 2014-11-12 波音公司 Methods and apparatus to determine aircraft flight conditions
CN203650537U (en) * 2013-12-04 2014-06-18 严逢辉 Gripping device for gripping open thin wall articles
CN104848852A (en) * 2015-06-10 2015-08-19 刘述亮 System and method for locating annular sensing array

Non-Patent Citations (2)

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吴杰: ""水下目标多元声传感阵列网络定位方法"", 《西安交通大学学》 *
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048974A (en) * 2021-03-17 2021-06-29 吉林大学 Bionic positioning device and using method thereof
CN113048974B (en) * 2021-03-17 2023-09-22 吉林大学 Bionic positioning device and application method thereof

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