CN107014282B - Wave climbing measurement system based on capacitive sensor - Google Patents
Wave climbing measurement system based on capacitive sensor Download PDFInfo
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- CN107014282B CN107014282B CN201710324708.6A CN201710324708A CN107014282B CN 107014282 B CN107014282 B CN 107014282B CN 201710324708 A CN201710324708 A CN 201710324708A CN 107014282 B CN107014282 B CN 107014282B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
- G01B7/082—Height gauges
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Abstract
The invention relates to the technical field of measuring instruments, which can record the climbing process of a water body on a slope surface under the action of a wave train, acquire the time distribution and the transverse space distribution of the climbing height of waves in real time, immediately count the software end after acquisition to obtain the climbing value of each accumulation rate, realize the accurate measurement of the climbing height of the waves, and has the advantages of convenient arrangement of a measuring plate and simple and direct data derivation. Wave climbing measurement system based on capacitive sensor, its characterized in that: the device consists of a climbing measurement module unit and a data processing unit; the climbing measurement module unit comprises a measurement bottom plate, an adjustable bracket for adjusting the angle between the measurement bottom plate and the horizontal plane, a plurality of capacitive sensors arranged on the top surface of the measurement bottom plate, and an AD conversion module and a first wireless transceiver which are sequentially connected with the capacitive sensors; the data processing unit comprises an upper computer and a second wireless transceiver connected with the upper computer, and the first wireless transceiver and the second wireless transceiver are connected in a wireless manner and transmit data.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a wave climbing measuring system based on a capacitive sensor.
Background
When the wave acts on the seawall structure, the difference value between the elevation of the water body and the static water level after the water body climbs along the seawall wave-facing slope surface is the wave climbing height. In the design of a sea wall structure, the determination of the elevation of the sea wall dike allowing surmounting mostly uses the wave climbing as a control index, i.e. the elevation of the dike should intercept the wave climbing below a certain accumulation rate, while part of the large waves are allowed to pass over the dike top. For the design elevation of the seawall top, the climbing data is important, the safety and the manufacturing cost of the engineering are directly affected, and the research of wave climbing has important scientific significance and engineering application value in the field of coastal engineering for many years.
In the model test of wave climbing, currently, the climbing measurement of universities and colleges in China mostly adopts a single wave height instrument method or a visual measurement method. The single wave height meter method is that the wave height meter is directly arranged on a seawall model, the arrangement of the joint of the instrument and the wave facing surface of the model is relatively inconvenient, the measured data signals are required to be additionally exported after the test is finished, the data are processed again, and then statistical analysis is carried out, so that the wave climbing value of each accumulation rate can be obtained, the next group of test schemes are determined to be adjusted, the test efficiency is low, and the instrument arrangement is inconvenient. The visual inspection method is that a steel ruler is directly arranged on a seawall model, a tester observes and records the readings of the ruler surface touched by waves one by one and converts the readings into a climbing value, the arrangement of the joint of the ruler surface and the facing surface of the model is convenient, but the measurement accuracy is completely dependent on the reading experience of the tester, meanwhile, the time-by-time process of the climbing height on the water body cannot be obtained, only the manual statistics after the test of the climbing value of the waves caused by partial large waves can be obtained, and the statistics of the climbing value with lower accumulation rate and the climbing average value are inaccurate.
Disclosure of Invention
The invention aims to overcome the defects in the background art, and provides a climbing measurement system based on a capacitive sensor, which can record the climbing process of a water body on a slope surface under the action of a wave train, acquire the time distribution and the transverse space distribution of the climbing height of waves in real time, and immediately count the software end after acquisition to obtain the climbing value of each accumulation rate, thereby realizing the accurate measurement of the climbing height of the waves, and the measurement plate is convenient to place and simple and convenient to derive data.
The technical scheme of the invention is as follows:
wave climbing measurement system based on capacitive sensor, its characterized in that: the device consists of a climbing measurement module unit and a data processing unit; the climbing measurement module unit comprises a measurement bottom plate, an adjustable bracket for adjusting the angle between the measurement bottom plate and the horizontal plane, a plurality of capacitive sensors arranged on the top surface of the measurement bottom plate, and an AD conversion module and a first wireless transceiver which are sequentially connected with the capacitive sensors; the data processing unit comprises an upper computer and a second wireless transceiver connected with the upper computer, and the first wireless transceiver and the second wireless transceiver are connected in a wireless manner and transmit data.
A plurality of grooves are formed in the top surface of the measuring bottom plate in parallel, and the rest part of the top surface is covered with a layer of roughening material with the same roughness as that of the slope of the model sea wall.
The capacitive sensor is arranged in the groove, and a sensitive wire of the capacitive sensor is parallel to the top surface of the measuring bottom plate.
Rubber soft gaskets are arranged at the edges of two sides of the bottom plate.
The adjustable support comprises a support plate and a telescopic rod, one end of the support plate is connected to the bottom surface of the measuring bottom plate through a self-locking hinge, a fastening bolt is arranged at the other end of the support plate, and the middle part of the support plate is movably connected with the bottom surface of the measuring bottom plate through the telescopic rod.
The first wireless transceiver and the second wireless transceiver are connected wirelessly through any one of a ZigBee network, a WIFI network, a mobile Internet and Bluetooth, and data are transmitted.
The AD conversion module, the first wireless transceiver and the lithium battery for providing power are arranged in the sealing box, the sealing box is fixed on the upper part of the measuring bottom plate, and the antenna of the first wireless transceiver extends out of the sealing box.
The upper computer comprises a data processing module, a display screen, a control button, a channel selection module, a data storage module and a patrol module which are connected with the data processing module; the data processing module is connected with the second wireless transceiver through the channel selection module so as to transmit data with the first wireless transceiver.
The invention has the beneficial effects that:
according to the invention, a change is made in the measurement principle, the novel capacitance sensor is adopted as a measurement medium, the collected climbing data signals are more accurate and the data quantity is more abundant, and the upper computer is utilized for data statistics analysis, so that the measurement precision and the measurement efficiency are improved, and the wave climbing test is more scientific and convenient; the climbing process of the water body on the slope surface under the action of the wave trains can be recorded, the time distribution and the transverse space distribution of the climbing height of the waves are known in real time, the upper computer immediately counts to obtain the climbing value of each accumulation rate after the collection is finished, the accurate measurement of the climbing height of the waves is realized, the arrangement of the measuring bottom plate is convenient, and the data derivation is simple and convenient.
Drawings
Fig. 1 is a block diagram showing the arrangement of the climbing measurement module of the present invention in a wave water tank.
Fig. 2-1 is a schematic top view of the climbing measurement module of the present invention.
Fig. 2-2 is a right-side view of the elevation measurement module of the present invention.
Fig. 3 is a schematic diagram of the system framework of the present invention.
FIG. 4 is a schematic diagram of the detection results of the present invention.
Fig. 5 is a schematic view of the frame structure of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1 to 5, a wave climbing measurement system based on a capacitive sensor is composed of a climbing measurement module unit 4 and a data processing unit. The climbing measurement module unit comprises a measurement bottom plate 9, an adjustable bracket for adjusting the angle between the measurement bottom plate and the horizontal plane, a plurality of capacitive sensors 6 arranged on the top surface of the measurement bottom plate, an AD conversion module 12-1 and a first wireless transceiver 12-2, wherein the AD conversion module 12-1 and the first wireless transceiver are sequentially connected with the capacitive sensors. The data processing unit comprises an upper computer 15 and a second wireless transceiver 16 connected with the upper computer, and the first wireless transceiver and the second wireless transceiver are connected wirelessly and transmit data.
The top surface of the measuring bottom plate is provided with a plurality of grooves in parallel, and the rest part of the top surface is covered with a layer of roughening material 7 with the same roughness as that of the slope of the model sea wall, and plastic grass is generally used; before a model test, after holes are punched on a measuring bottom plate, plastic grass is uniformly arranged, and the roughness which is the same as that of a model wave facing structure is rated and obtained by changing the height and the sparsity (spacing) of the plastic grass, which is the prior art. The capacitive sensor is arranged in the groove, and the sensitive wire 6-1 of the capacitive sensor is parallel to the top surface of the measuring bottom plate. Rubber soft gaskets 8 are arranged at the edges of the two sides of the bottom plate.
The adjustable bracket comprises a supporting plate 14 and a telescopic rod 13, one end of the supporting plate is connected to the bottom surface of the measuring bottom plate through a self-locking hinge (omitted in the drawing), the other end of the supporting plate is provided with a fastening bolt 10, and the middle of the supporting plate is movably connected with the bottom surface of the measuring bottom plate through the telescopic rod.
The first wireless transceiver and the second wireless transceiver are of the prior art, and wireless connection and data transmission are realized between the first wireless transceiver and the second wireless transceiver through any one of a ZigBee network, a WIFI network, a mobile internet and Bluetooth. The AD conversion module, the first wireless transceiver and the lithium battery for supplying power are installed in a sealing box 12, the sealing box is fixed on the upper part of the measuring bottom plate, and an antenna 11 of the first wireless transceiver extends out of the sealing box.
The upper computer comprises a data processing module 15-1, a display screen 15-2 (usually a touch screen) connected with the data processing module, a control button 15-5, a channel selection module 15-6, a data storage module 15-3 (for example, a mobile hard disk can be adopted), and a patrol module 15-4. The data processing module is connected with the second wireless transceiver through the channel selection module and the RS232 interface, so that the data processing module is connected with the first wireless transceiver through the second wireless transceiver, and the data of one capacitive sensor or the data of a plurality of capacitive sensors are collected simultaneously.
In the use process of the invention, firstly, the climbing measurement module 4 is installed, as shown in fig. 1, the installation positions are arranged according to the model requirement, and in fig. 1, the climbing measurement module is as follows: the wave generator 1, the model sea wall slope surface 3 and the wave eliminating device 5 at the rear end of the wave water tank; the climbing measurement module 4 provided by the invention is arranged at the upper part of the seawall slope surface 3, the lower end of the climbing measurement module (namely the lower end of the measurement bottom plate) is flush with the static water level of the test, and the smooth and flat transition of the joint of the model seawall slope surface 3 and the climbing measurement module is ensured during arrangement. The front surface 9-1 (i.e. the measuring surface) of the climbing measuring module faces the incident direction of the wave 2, the angle between the measuring bottom plate and the horizontal plane is changed by adjusting the opening degree of the self-locking hinge of the bracket 13, and after the position angle is determined, the supporting plate is fixed by the screw 10, so that the whole climbing measuring module is fixed. After the fixing is finished, the number of measuring channels is selected according to the test requirement, the corresponding number of capacitance sensors 6 are fixed in the grooves of the measuring bottom plate, three measuring rods are taken as an example, as shown in fig. 2-1 and 2-2, the capacitance sensors 6 are arranged on the bottom plate at equal intervals, the rest part of the front surface of the measuring bottom plate is covered by a layer of roughening material 7, the roughness of the roughening material is equal to that of the model seawall slope surface 3, and meanwhile, rubber soft gaskets 8 are arranged on two sides of the bottom plate to prevent the bottom plate from shaking left and right to influence the measuring precision. After the installation of the measuring bottom plate and the capacitive sensor is completed, the installation of the whole climbing measuring module 4 is completed.
The data processing unit is mainly used for receiving and transmitting acquired signals and converting the acquired signals, as shown in fig. 3, the second wireless receiving and transmitting device 18 is communicated with the upper computer 15 in an RS232 serial port mode, and the second wireless receiving and transmitting device is communicated with the first wireless receiving and transmitting device of the climbing measurement module in a zigbee wireless mode to receive data signals. The test data measurement acquisition and data analysis are completed in the upper computer 15.
In the test process, all operations are completed in the upper computer. The control button, the channel selection module, the inspection module and the like can be physical modules or can be replaced by a form of pre-installing software in an upper computer. The operations of data acquisition, stopping, storage and the like are shown in fig. 4, after a stable wave surface appears in front of the dike, the 'acquisition' button is clicked, the water surface climbing height process under the action of each wave is automatically recorded and displayed in real time in a software interface, and the software automatically recognizes that the highest water surface value in a certain climbing process is 1 wave climbing value. After the wave generation is finished, clicking a stop button, immediately displaying the wave climbing value and other information of each accumulation rate after program statistics in a data field on the right side of the software, clicking a store button, automatically storing test data in an Excel format (stored in a data storage module), and clicking a export button to finish the process.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Wave climbing measurement system based on capacitive sensor, its characterized in that: the device consists of a climbing measurement module unit (4) and a data processing unit; the climbing measurement module unit comprises a measurement bottom plate (9), an adjustable bracket for adjusting the angle between the measurement bottom plate and the horizontal plane, a plurality of capacitive sensors (6) arranged on the top surface of the measurement bottom plate, an AD conversion module (12-1) and a first wireless transceiver (12-2) which are sequentially connected with the capacitive sensors; the data processing unit comprises an upper computer (15) and a second wireless transceiver (16) connected with the upper computer, and the first wireless transceiver and the second wireless transceiver are connected in a wireless way and transmit data;
the top surface of the measuring bottom plate is provided with a plurality of grooves in parallel, and the rest part of the top surface is covered with a layer of roughening material (7) with the same roughness as that of the slope of the model sea wall;
the capacitive sensor is arranged in the groove, and a sensitive wire (6-1) of the capacitive sensor is parallel to the top surface of the measuring bottom plate;
the adjustable bracket comprises a supporting plate (14) and a telescopic rod (13), one end of the supporting plate is connected to the bottom surface of the measuring bottom plate through a self-locking hinge, the other end of the supporting plate is provided with a fastening bolt (10), and the middle part of the supporting plate is movably connected with the bottom surface of the measuring bottom plate through the telescopic rod;
rubber soft gaskets (8) are arranged at the edges of two sides of the bottom plate;
the first wireless transceiver and the second wireless transceiver are connected wirelessly through any one of a ZigBee network, a WIFI network, a mobile Internet and Bluetooth, and data are transmitted.
2. The capacitive sensor-based wave-climbing measurement system of claim 1, wherein: the AD conversion module, the first wireless transceiver and the lithium battery for providing power are arranged in a sealing box (12), the sealing box is fixed on the upper part of the measuring bottom plate, and an antenna (11) of the first wireless transceiver extends out of the sealing box.
3. The capacitive sensor-based wave-climbing measurement system of claim 2, wherein: the upper computer comprises a data processing module (15-1), a display screen (15-2), a control button (15-5), a channel selection module (15-6), a data storage module (15-3) and a patrol module (15-4) which are connected with the data processing module; the data processing module is connected with the second wireless transceiver through the channel selection module so as to transmit data with the first wireless transceiver.
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| CN201710324708.6A CN107014282B (en) | 2017-05-10 | 2017-05-10 | Wave climbing measurement system based on capacitive sensor |
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| CN107014282B true CN107014282B (en) | 2023-05-12 |
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| CN108180848A (en) * | 2017-12-15 | 2018-06-19 | 浙江海洋大学 | A kind of movable type wave run-up accurately measures device |
| CN107917743A (en) * | 2017-12-21 | 2018-04-17 | 交通运输部天津水运工程科学研究所 | A kind of tantalum wire tolerance formula Wave Sensor device |
| CN110567360B (en) * | 2018-06-06 | 2021-07-23 | 宏碁股份有限公司 | Three-dimensional scanning system |
| CN108750001B (en) * | 2018-06-22 | 2023-08-15 | 上海船舶运输科学研究所 | Comprehensive wave measurement system for ship navigation |
| CN109596314A (en) * | 2019-01-15 | 2019-04-09 | 交通运输部天津水运工程科学研究所 | A kind of wave height pilot system |
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| JP3959300B2 (en) * | 2002-04-26 | 2007-08-15 | 株式会社 サンウェイ | Road surface flatness measuring method and measuring apparatus |
| CN201083518Y (en) * | 2007-09-30 | 2008-07-09 | 水利部交通部电力工业部南京水利科学研究院 | Waveform height measuring systems |
| CN203422058U (en) * | 2013-07-29 | 2014-02-05 | 天津水运工程勘察设计院 | Two-wire system capacitor type wave height sensor |
| CN203503142U (en) * | 2013-10-08 | 2014-03-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Wireless receiving and transmitting device for water level |
| CN204633766U (en) * | 2015-01-28 | 2015-09-09 | 水利部交通运输部国家能源局南京水利科学研究院 | The multichannel wireless receiving and dispatching communication system of river model test |
| CN105547638B (en) * | 2015-12-30 | 2018-03-27 | 中国水利水电科学研究院 | A kind of sheet flow roll wave measuring system and method based on pressure sensor |
| CN105486487A (en) * | 2015-12-31 | 2016-04-13 | 交通运输部天津水运工程科学研究所 | Wave detection system |
| CN105928490A (en) * | 2016-06-22 | 2016-09-07 | 广西大学 | Wireless remote measuring device for coastal flowage line elevation monitoring |
| CN206989880U (en) * | 2017-05-10 | 2018-02-09 | 浙江省水利河口研究院 | A kind of wave run-up measuring system based on capacitance type sensor |
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