CN211477290U - Water level measuring device based on strip-shaped water level scale - Google Patents
Water level measuring device based on strip-shaped water level scale Download PDFInfo
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- CN211477290U CN211477290U CN202020319769.0U CN202020319769U CN211477290U CN 211477290 U CN211477290 U CN 211477290U CN 202020319769 U CN202020319769 U CN 202020319769U CN 211477290 U CN211477290 U CN 211477290U
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Abstract
The utility model relates to a hydrology information acquisition technique. A water level measuring device based on a bar-shaped water level scale comprises the bar-shaped water level scale and a bar-shaped water level scale scanning host, wherein the bar-shaped water level scale scanning host comprises a laser scanning module (2), a master control circuit (3), a wireless transmission module (4) and a power supply module (5), and an output signal of the laser scanning module (2) is connected into the master control circuit (3); the wireless transmission module (4) is in communication connection with the main control circuit (3); the power supply module (5) provides a working power supply for the laser scanning module (2), the main control circuit (3) and the wireless transmission module (4). The utility model discloses a laser scanning module discerns the indirect water level that calculates the water body of surveying of length that the bar water level scale is not submerged the part by the water, and the principle of measurationing is simple, and recognition effect is good, and the bit error rate is extremely low.
Description
Technical Field
The utility model relates to a hydrology information acquisition technology especially relates to a water level measuring device/system such as river course, channel, reservoir and lake.
Background
The water level is the elevation of the free water surface of water bodies such as riverways, channels, reservoirs, lakes and the like above a certain specified base level, is the most basic hydrological information acquisition project, and long-term accumulated water level data is the basic basis of engineering construction planning design of water conservancy and hydropower, flood control and drought resistance, bridges, navigation channels, ports, cities, water supply and drainage and the like, is directly applied to the design of engineering such as dikes and dams, bridges, culverts, highway pavement elevation determination, reservoirs, weir gates, irrigation, waterlogging drainage and the like, and performs hydrological forecasting work according to the water level data, so as to provide timely water condition information for the construction, application, management and the like of flood control and drought resistance, irrigation, shipping and hydraulic engineering. Meanwhile, water level measurement is also an important means for water management in irrigation areas, and channel water level is an important parameter for judging channel working state and channel flow calculation. In addition, the water level provides indirect data for the purpose of deriving other hydrological data. The flow and the change process thereof can be calculated according to the water level record of continuous observation through the water level flow relation, and the water surface ratio drop, the water storage capacity of rivers and lakes and the like can be calculated by utilizing the water level. Water level measurement is very important as the most basic item for acquiring hydrological information.
The existing water level measuring method comprises two modes of manual water gauge measurement and automatic self-recording water level meter measurement.
Manual measurement of a water gauge is the most common and reliable water level measurement method. The method for manually measuring the water gauge comprises the following steps: a water level scale is arranged at a selected place, the reading of the water level scale is directly observed manually at regular time, and the water level scale is the water level by adding the zero point elevation of the water level scale, wherein the water level scale is a necessary basic facility, and the E-shaped water level scale is commonly used in China. The water gauge manual measurement has the following defects: poor efficiency, low precision, time and labor consumption.
With the progress of electronic information and computer technology, the automatic measuring method of the self-recording water level meter has been rapidly developed in recent decades as a high and new technology. The commonly used self-recording water level meters in the current market are as follows: float type water level gauge, pressure type water level gauge, magnetostrictive water level gauge, ultrasonic water level gauge, radar water level gauge, laser water level gauge, electronic water gauge and the like. The working principle of the self-recording water level gauges is to use various physical principles to sense the change of the water level, and various water level gauges have the advantages and disadvantages and applicable occasions and have the problem that the water level is not measured intuitively.
Therefore, in order to overcome the defects of poor efficiency, low precision, time and labor consumption of manual water gauge measurement and better solve the problem that the water level is not directly measured by self-recording water level measurement, a novel water level measurement method which is simple in structure, high in measurement precision, suitable for various occasions and direct is researched and provided, and the novel water level measurement method has extremely high theoretical and actual values.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to prior art, provide a water level measuring device/system based on bar water level scale. The water level of the measured water body is indirectly calculated by identifying the length of the part, which is not submerged by the water body, of the strip-shaped water level scale through the laser scanning module, the measuring principle is simple, the scanning and identifying effect of the water level scale is good, and the error rate is extremely low.
The utility model adopts the technical proposal that:
a water level measuring device/system based on a bar-shaped water level scale comprises the bar-shaped water level scale and a bar-shaped water level scale scanning host, wherein the bar-shaped water level scale is installed or drawn in places such as channels, riverways, reservoirs and the like needing to measure water level; the bar-shaped water level scale scanning host comprises a laser scanning module (2), a main control circuit (3), a wireless transmission module (4) and a power supply module (5), wherein the laser scanning module (2) outputs signals to access the main control circuit (3); the wireless transmission module (4) is in communication connection with the main control circuit board (3).
The water level measuring device/system based on the strip-shaped water level scale is characterized in that a main control circuit consists of a microprocessor, a memory and a peripheral control circuit, the microprocessor is connected with a control circuit and a wireless transmission module, and the control circuit is connected with a laser scanning module; the microprocessor executes the following data processing program: according to the scanning result of the laser scanning device, the length of the part, which is not immersed by the water body, of the water level scale is identified and calculated, and then the water level of the measured water body is calculated according to the length difference between the whole length of the water level scale and the part, which is not immersed, and the zero elevation of the water level scale.
The laser scanning module consists of a laser light source, an optical scanning system, an optical receiving system, a photoelectric converter and a code counter; the laser light source is connected with the optical scanning system, the optical receiving system is connected with the photoelectric converter, and the photoelectric converter is connected with the code counter.
The water level measuring device/system based on the bar-shaped water level scale is characterized in that a laser scanning module (2), a main control circuit (3), a wireless transmission module (4) and a power supply module (5) of a bar-shaped water level scale scanning host are arranged in a rainwater-proof box body, and the laser scanning module is arranged at the front end of the rainwater-proof box body.
Beneficial effects of the utility model
1. The utility model discloses water level measuring device based on bar water level scale has realized the novel water level technique of measurationing based on "bar water level scale + laser scanning recognition technology combines together", can further promote the huge progress and the technical innovation of water level technique of measurationing. The water level measuring principle is simple, the scanning and identifying effect of the water level scale is good, and the error rate is extremely low.
2. The utility model discloses water level measuring device based on bar water level gauge, the precision of measurationing is high, and the scale of 1 millimeter precision when water level gauge installs perpendicularly, the precision can reach 1 millimeter, when the slope installation, the precision can be higher, if slope 30 degrees installation, the precision can reach 0.5 millimeter.
3. The utility model discloses water level measuring device based on bar water level gauge has the artifical characteristics directly perceived of surveing of similar water gauge, and convenient calibration is rectified. The scanning host computer is not in direct contact with the measured water body, so that the equipment is not easy to corrode and damage and has long service life.
Drawings
Fig. 1 is a schematic view of a water level gauge with a precision of 1 cm according to an embodiment of the present invention;
fig. 2 is a schematic view of a water level gauge with a precision of 1 mm according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a scanning host according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 or fig. 2 and fig. 3, the utility model discloses water level measuring device/system based on bar water level scale, including bar water level scale and bar water level scale scanning host computer, bar water level scale, install or draw in places such as channel, river course, the reservoir of water level are surveyed to needs.
As shown in fig. 1 and 2, the scale of the strip-shaped water level scale is divided into two accuracies of 1 centimeter and 1 millimeter. Fig. 1 shows a strip-shaped water level scale with 1 cm precision, which can be made of wood board, enamel board, stainless steel plate, aluminum alloy plate, plastic plate, polymer material plate, etc., or can be made by directly drawing water scale scales on the wall surface of river rock bank slope or hydraulic building, and the width of the strip-shaped water level scale is more than 8 cm; the scale marks are marked by color bars with the width of 1 cm and the length of red and white phases or blue and white phases or black and white phases equal to the width of the scale.
Fig. 2 shows the 1 mm precision strip-shaped water level scale of the present invention, which can be made of wood board, enamel board, stainless steel plate, aluminum alloy plate, plastic plate, polymer material plate, etc., and the width of the strip-shaped water level scale is greater than 8 cm; the scale marks are made of 1 mm wide color bars with the length equal to the width of the scale between red and white or between blue and white or between black and white.
In the figure, the mark A is a red, blue or black scale bar, and the mark B is a white scale bar.
As shown in fig. 3, the bar-shaped water level scale scanning host comprises a laser scanning module 2, a main control circuit 3, a wireless transmission module 4 and a power supply module 5, wherein an output signal of the laser scanning module 2 is connected to the main control circuit 3; the wireless transmission module 4 is in communication connection with the main control circuit 3. The main control circuit is composed of a microprocessor 6, a memory 7 and a control circuit 8. The microprocessor is connected with the control circuit and the wireless transmission module, and the control circuit is connected with the laser scanning module. Laser scanning module 2, master control circuit 3, wireless transmission module 4 and the power module 5 of bar water level scale scanning host computer arrange in a rain- proof water box 1, and 2 pieces of laser scanning module set up in 1 front end of rain-proof water box. The rain-proof box body comprises a door, a lock and a buckle which is conveniently arranged on the upright stanchion; the rain-proof box body can be made of plastics, stainless steel plates or iron plates painted with anti-rust paint.
The laser scanning module consists of a laser light source, an optical scanning system, an optical receiving system, a photoelectric converter and a code counter; the laser light source is connected with the optical scanning system, the optical receiving system is connected with the photoelectric converter, and the photoelectric converter is connected with the code counter. The angle of the scanning lens of the optical scanning system can be adjusted. The power supply module is a lithium battery power supply module or a solar battery power supply module; the wireless transmission module can be a GPRS communication module, a satellite communication module, a ZigBee communication module, a WIFI communication module, a 2.4G communication module or a Bluetooth communication module.
The utility model discloses water level measuring device based on bar water level scale installs use and water level measuring principle:
1) selecting a proper position to install a strip-shaped water level scale meeting the precision requirement on occasions such as a channel and a river channel needing to measure the water level; the strip-shaped water level scale can be vertically installed or installed in a certain inclination angle, can be directly installed on the wall surface of a hydraulic building or the bank slope of river rock, can also be installed on a leaning pile, and can also be directly drawn on the wall surface of the river rock or the hydraulic building for occasions with low precision requirements;
2) installing a laser scanning device at a proper position facing the oblique upper side of the bar-shaped water level scale, connecting the laser scanning device, and arranging a data processing terminal, wherein the data processing terminal can be a bar-shaped water level scale scanning host computer or a portable computer or communication equipment; the laser scanning device can also be in communication connection with a monitoring center in a remote communication mode; the data processing terminal, the bar-shaped water level scale scanning host or the monitoring center are provided with data processing programs;
3) information acquisition and water level measurement (by the microprocessor executing the following data processing program):
scanning the part of the strip-shaped water level scale, which is not submerged by the water body, by using a laser scanning device to obtain original data containing water level information, and sending the original data to a data processing terminal or a remote monitoring center;
the data processing terminal or the remote monitoring center identifies the length of the part, which is not immersed by the water body, of the water level scale according to the scanning result of the laser scanning device and the difference of the reflectivity of the water surface and the strip-shaped water level scale, identifies the number of the scribing strips of the part, which is not immersed by the water body, of the strip-shaped water level scale based on the difference of the reflectivity of the scribing strips of different colors of the strip-shaped water level scale, calculates the length of the part, which is not immersed by the water body, of the strip-shaped water level scale according to the width of the scribing strips of the scale, and finally calculates the water level of the measured water body according to the difference between the length of the whole water level scale and.
Specifically, the main control circuit 3 sends a signal to the laser scanning module 2, the laser scanning module 2 sends out a laser to scan the part of the water level scale which is not immersed by the water body after receiving the signal, the laser scanning module receives the reflected light signals reflected by the scale scribing strips with different colors of the bar water level scale, the reflected light signals with different intensities are converted into 0 and 1 digital electric signals, the number of the white scribing strips and the number of the black scribing strips or the red scribing strips or the blue scribing strips can be judged by measuring the number of the pulse digital electric signals 0 and 1, then the length of the part of the bar water level scale which is not immersed by the water body is calculated according to the width of the scale scribing strips, and the water level of the measured water body is calculated according to the length difference between the whole water level scale and the part which is not immersed and the zero point elevation of the water level scale. When the data processing terminal is adopted for processing, the data processing terminal stores the measurement result into the memory and then sends the result to the monitoring center through the wireless transmission module.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make any simple modification, equivalent change or replacement by using the conventional technical means in the field without any creative work in combination with the prior art, and all the features of the present invention should be covered within the protection scope of the claims of the present invention as long as they do not depart from the essential characteristics of the technology of the present invention.
Claims (5)
1. The utility model provides a water level measuring device based on bar water level gauge, includes bar water level gauge and bar water level gauge scanning host computer, its characterized in that: the bar-shaped water level scale scanning host computer, include: the device comprises a laser scanning module (2), a main control circuit (3), a wireless transmission module (4) and a power supply module (5), wherein an output signal of the laser scanning module (2) is connected to the main control circuit (3); the wireless transmission module (4) is in communication connection with the main control circuit (3); the power supply module (5) provides a working power supply for the laser scanning module (2), the main control circuit (3) and the wireless transmission module (4).
2. The water level measuring apparatus according to claim 1, wherein: the strip-shaped water level scale is installed or drawn in places of channels, riverways and reservoirs needing water level measurement; the scale of the bar-shaped water level scale is drawn by adopting red and white or blue and white or black and white color bars with the length equal to the width of the scale, and the width of the red and white or blue and white color bars is 1 mm or 1 cm.
3. The water level measuring apparatus according to claim 1 or 2, wherein: the main control circuit (3) comprises a microprocessor (6), a memory (7) and a peripheral control circuit (8), the microprocessor is connected with the peripheral control circuit and the wireless transmission module, and the peripheral control circuit is connected with the laser scanning module.
4. The water level measuring apparatus according to claim 1 or 2, wherein: the laser scanning module consists of a laser light source, an optical scanning system, an optical receiving system, a photoelectric converter and a code counter; the laser light source is connected with the optical scanning system, the optical receiving system is connected with the photoelectric converter, and the photoelectric converter is connected with the code counter.
5. The water level measuring apparatus according to claim 1 or 2, wherein: bar water level scale scanning host computer include rain-proof water tank body (1), laser scanning module (2), master control circuit (3), wireless transmission module (4) and power module (5) arrange in rain-proof water tank body (1), laser scanning module sets up in rain-proof water tank body front end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020319769.0U CN211477290U (en) | 2020-03-16 | 2020-03-16 | Water level measuring device based on strip-shaped water level scale |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020319769.0U CN211477290U (en) | 2020-03-16 | 2020-03-16 | Water level measuring device based on strip-shaped water level scale |
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| CN211477290U true CN211477290U (en) | 2020-09-11 |
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| CN202020319769.0U Active CN211477290U (en) | 2020-03-16 | 2020-03-16 | Water level measuring device based on strip-shaped water level scale |
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