TWI388807B - Measurement System and Method of Unit - type Sand Concentration and Flow Rate Ultrasonic Measurement - Google Patents

Description

Unit type mud sand concentration and flow rate ultrasonic measuring system and method

The invention relates to a unit type mud sand concentration and flow rate ultrasonic measuring system and method, in particular to a unitized mud sand concentration and flow rate ultrasonic measuring system and method for automatically collecting fluid data.

In the case of hillside land development and poor soil and water conservation, when the rivers are hit by heavy rains, the flow and mud sand concentration will increase instantaneously, resulting in rapid siltation of the sand dams and reservoirs, and siltation of downstream rivers, damage to the embankments or shortage of water sources. In severe cases, the dam breaks down, and not only the engineering facilities are ineffective, they are ineffective, and even bring more disasters.

In order to truly prevent disasters, in addition to the basic water and soil conservation, it is necessary to conduct a comprehensive review of the water conservancy construction plan - for example, whether the traditional construction method is still used to resist earth and stone, facility benefits, environmental assessment, etc. The plan must be carried out through long-term environmental observation and hydrological monitoring, after fully understanding the overall regional hydrological characteristics. In the hydrological data monitoring project, the change of the sediment concentration in the flood peak during the flood peak period and the general flow rate shows the migration characteristics of the silt and sand, and it is directly related to the silt deposition volume and siltation rate of the facility, which is very necessary and important information.

At present, the way to measure the concentration of mud and sand in the waterway is to collect the container from the engineering personnel to the waterway site and bring the obtained water sample to the research room or the observation station for analysis. This method can not only instantly know the concentration of mud and sand in the river channel, but based on safety considerations, during the flood peak of the Taihong rainstorm, the engineering personnel can not go to the site to collect, and can not grasp the complete mud sand concentration history. Therefore, it is necessary to establish a mud sand concentration measurement system that can automatically collect and measure the concentration of mud and sand.

Accordingly, it is an object of the present invention to provide a unitized mud sand concentration and flow rate ultrasonic measurement system and method for automated acquisition of fluid data.

Therefore, the unit type mud sand concentration and flow rate ultrasonic measuring system comprises a host, a connecting component and at least one fluid detector; the connecting component has a transmission line and a cable; the fluid detector is placed in the fluid The cable is connected to the cable to measure a fluid data; the host and the fluid detector are connected to each other by the transmission line, and the host receives the fluid data measured by the fluid detector by the transmission line and applies recording.

The unit type mud sand concentration and flow rate ultrasonic measuring method is performed in conjunction with the unit type mud sand concentration and flow rate ultrasonic measuring system, and the method comprises the following steps: (a) between the host and the fluid detector The transmission lines are connected to each other, and the fluid detector is attached to the cable; (b) the fluid detector is placed in the fluid with the cable to measure fluid data; and (c) the host borrows The transmission line receives and records the fluid data measured by the fluid detector.

If a plurality of sets of fluid detectors are used, the unit type mud sand concentration and flow rate ultrasonic measurement method comprises the following steps: (a) connecting the host to one end of the transmission line, and each of the fluid detectors The transmission lines of the connecting components are connected in series with each other and are hung at different positions of the cable; (b) each fluid detector is placed in the fluid to measure a fluid data; and (c) the host borrows The transmission line receives and records the fluid data measured by each of the fluid detectors.

The unit type mud sand concentration and flow rate ultrasonic measuring system and method are connected to one or more fluid detectors by the host with the transmission line, so that the host can perform long-time automatic acquisition and recording and monitoring of fluids such as mud sand concentration and water flow speed. data.

The above and other technical features, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1, a first preferred embodiment of the present invention is disposed in a water adjacent to a shore, such as a fluid of a sea, a river, or a reservoir. 5, the unitized mud concentration and flow rate ultrasonic measurement system 100 includes a plurality of fluid detections. The detector 1, a connecting component 2 and a host 3.

The unit type mud sand concentration and flow rate ultrasonic measuring system 100 is a method for measuring the unit type mud sand concentration and flow rate ultrasonic wave according to the present invention, and the method comprises the steps of: connecting the host 3 to one end of the transmission line 22 of the connecting member 2, And one end of the cable 21 of the connecting component 2 is fixed to the shore, for example, a river bank, and the fluid detectors 1 are connected in series with each other by the transmission line 22, and are hung in different positions of the cable 21 of the connecting component 2; Each fluid detector 1 is placed in the fluid 5 to separately measure a fluid data; then, the host 3 receives the fluid data measured by the fluid detectors 1 through the transmission line 22 and records them.

Wherein, the main body 3 is disposed on a base near the shore, and since the earth and stone structure of the shore is not easy to be fixed, one end of the cable 21 is fixed to the base, and the connecting member 2 further has two floating plates 23, a plumb bob device 24 and an anchoring device 25; the floating plate 23 is for the cable 21 to buoy upward to straighten the cable 21, and has a function of observing the water surface to know the current position, the plumb bob device 24 and The anchoring device 25 functions to cause the fluid detectors 1 to be placed in the fluid 5, and when the water flow speed is fast or the water flow is unstable, the positions of the fluid detectors 1 are not too far from the original sinking position. The fluid detectors 1 are suspended in the fluid 5 in a longitudinally aligned manner along the cable 21. The floating plate 23 is also available for personnel to stand to pull the cable 21 and the plumb bob device 24 away from the fluid 5 for maintenance or maintenance of the various fluid detectors 1.

Each of the fluid detectors 1 is attached to different positions of the cable 21 to measure fluid data of different depths of the fluid 5, and is connected in series with each other by a transmission line 22, one end of the transmission line 22 is connected to the host 3, and the host 3 is connected by a transmission line. 22 The fluid data measured by each fluid detector 1 is received and recorded, so that long-term automatic monitoring of the fluid 5 farther from the shore can be performed.

It should be noted that, as shown in FIG. 1 , the present invention has a plurality of sets of fluid detectors 1 . However, as shown in FIG. 2 , a single set of fluid detectors 1 may be used; or in the manner of FIG. 1 , suspended in the fluid 5 . A plurality of cables 21 are formed to form a planar or three-dimensional measuring point. As long as the fluid detector 1 is placed in the fluid 5 and attached to the cable 21 to measure the fluid data, and the host 3 and the fluid detector 1 are connected to each other by a transmission line 22, the host 3 receives the fluid through the transmission line 22. The fluid data measured by the detector 1 is recorded and recorded, and the effect of instant automatic monitoring can also be achieved.

Referring to FIG. 2, the fluid detector 1 has a barrel 16, two sets of brackets 161 and 162 disposed on the outer side of the barrel 16, two sets of probe sets 123 and 124 disposed on the brackets 161 and 162, and a set on a pressure sensing unit 131 and a temperature sensing unit 132 at the bottom of the barrel 16; the probe group 123 has a transmitting end 1231 and a receiving end 1232 for transmitting/receiving ultrasonic signals in the fluid for measuring the water flow speed; The probe set 124 has a transmitting end 1241 and a receiving end 1242 for transmitting/receiving ultrasonic signals in the fluid for measuring muddy sand concentration; the pressure sensing unit 131 is for measuring pressure for conversion into depth data; temperature sensing Unit 132 is used to measure the temperature of fluid 5.

That is, each of the probe sets 123 and 124 is configured to detect different fluid data. Therefore, one set or expand to more groups according to different requirements, not limited to the above two groups, and each probe set 123, 124 The transmission/reception distance can also be adjusted to different distances according to the actual measurement requirements. For example, when the muddy sand concentration is high, the transmission/reception distance of the probe sets 123 and 124 needs to be adjusted to a shorter distance to ensure that the signal can be received for measurement. .

Referring to FIG. 3, the fluid detector 1 has electronic components in addition to the probe sets 123 and 124, the pressure sensing unit 131 and the temperature sensing unit 132, and further includes a processing module 10, a power supply module 11, and a The transmission/reception drive module 12, a selection circuit 125, a memory module 14, and a transmission interface 15.

The power supply module 11 is configured to supply power required by the components of the fluid detector 1. The transmit/receive drive module 12 includes two channels of transmit/receive and preamplifiers, and each channel is driven by a first drive circuit. 121. The second driving circuit 122. The processing module 10 controls the coordinated operation of the electronic components. The analog module digital converter, the timing controller and the like, the processing module 10 sequentially controls the first driving circuit 121 and the second driving circuit 122 to drive the probe groups 123 and 124 to emit ultrasonic signals with a sine burst, and the driving voltage thereof The size is set by the processing module 10 according to the size of the received signals of the probe sets 123 and 124 obtained by the selection circuit 125. The processing module 10 is controlled by the timing control selection circuit 125 to obtain the received signal, and the selection circuit 125 includes the subsequent stage automatic gain back. The circuit is taught to amplify the received signal.

The processing module 10 uses the probe group 123 to receive the ultrasonic signal digitization, and then estimates the water flow speed according to the change amount of the ultrasonic signal transmission time. In addition, the processing module 10 uses the probe group 124 to receive the ultrasonic signal signal and digitizes it. The amplitude integral is calculated according to the correspondence between the relative attenuation of the ultrasonic signal signal and the concentration of the muddy sand, and the formula of the ultrasonic energy attenuation-concentration relationship determined in advance is substituted to calculate the muddy sand concentration.

In addition, the processing module 10 receives the pressure measured by the pressure sensing unit 131 and the temperature measured by the temperature sensing unit 132, and the water depth can be converted by using the pressure value, thereby understanding the fluid detector 1 when measuring the fluid data. Actual depth. Then, the processing module 10 stores the water flow velocity, the mud concentration, the temperature, the pressure value and the depth data in the memory module 14 , and can output the data to the host 3 through the transmission interface 15 .

The power supply module 11 includes components such as a power converter and a battery. To prevent power shortage, the power supply module 11 receives the power supplied from the host 3 through the transmission line 22 connected through the transmission interface 15.

The transmission interface 15 of this embodiment adopts an RS485 interface, and the control architecture adopts distributed control, which has a long transmission distance, reduces noise, and can be more The advantages of multi-connection and decentralized control; in addition, the decentralized control is that the host 3 is only responsible for the coordination of the units, so that the processing modules 10 of the fluid detectors 1 independently process the events, thus making the invention less expensive. The expansion is easy and the execution efficiency is high, so as to avoid the disadvantage that the centralized processor is overburdened by the processor of the host.

The host module 3 has a control module 31, a recording module 32, a communication module 33, a power conversion module 34, and a control interface 35. The control module 31 controls each fluid detector 1 through the control interface 35. The operation is performed, and the fluid data of each fluid detector 1 is received from the control interface 35. The recording module 32 is a data logger that automatically records the fluid data measured by each fluid detector 1 automatically. The communication module 33 can be a wireless communication, such as a mobile communication module, using a communication mode such as GPRS or 3G; or a wired communication, such as an ADSL, optical fiber or regional network communication mode, for using the recording module 32. The recorded result is sent to the remote end by wireless or wired communication; the power conversion module 34 converts the solar energy into available power, and then supplies the power required by the fluid detector 1 through the transmission line 22; however, in addition to solar energy The power conversion module 34 can also use other renewable energy sources, such as wind energy, hydropower, or direct access to utility power.

Referring to FIG. 4, the second preferred embodiment of the present invention is applicable to a case where the water level varies greatly, and the fluid amount data of the fixed distance bed is fixed distance, and the unit type mud sand concentration and flow rate ultrasonic measuring system 100' also includes The fluid detector 1', the connecting member 2' and the main body 3', the connecting member 2' also includes a cable 21' and a transmission line 22' and a plumb bob device 24' which are enclosed in the cable 21'.

The difference is that the connecting member 2' of the embodiment further includes a float device. 26, and the cable 21' is divided into a connecting section 211 and a pulling cord section 212 which connect the fluid detecting devices 1' to each other, and the pulling cord section 212 is fixed to the floating plate 23' and extends and fixed to the main body 3'.

The measurement method of the second preferred embodiment is to connect the host 3' to one end of the transmission line 22', and each of the fluid detectors 1 is connected in series with the transmission line 22' and the connection section 211; and each fluid detector 1' Placed in the fluid 5 and placed in conjunction with the plumb bob device 24' to separately measure fluid data of different depths; then, the host 3' receives the fluid data measured by each fluid detector 1' by the transmission line 22' and records it. Therefore, the fluid 5 with a large water level variation and a variable distance bottom bed can be automatically monitored for a long time; and the recovery method is that the drawing of the rope string 212 can take out the fluid from the fluid 5. Detector 1'.

Referring to FIG. 5, a third preferred embodiment of the present invention is suitable for use in a structure 4 (eg, a pier). The unitized mud concentration and flow rate ultrasonic measurement system 100" also includes a fluid detector 1 ", the connecting member 2" and the main body 3", the functions of the respective elements are as described in the foregoing embodiments, and the description thereof will not be repeated here.

The difference is that the cable 21" of the connecting member 2" of the present embodiment is fixed at a different depth position in the fluid 5 by the plurality of fixing portions 41, so that the fluid in the vicinity of the structural body 4 can be used. 5 Perform long-term, automated automated monitoring.

In summary, the unitized mud sand concentration and flow rate ultrasonic measuring system and method of the present invention are connected to a plurality of fluid detectors by the host matching transmission line of the different embodiments described above, so that the host can perform long-time automated instant recording and monitoring. Fluid data such as mud concentration and water flow rate, so it can The object of the invention is achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

100, 100', 100" ‧‧‧ unitized mud sand concentration and flow rate ultrasonic measurement system

1, 1', 1" ‧ ‧ fluid detector

10‧‧‧Processing module

11‧‧‧Power supply module

12‧‧‧Transmission/receiving drive module

121‧‧‧First drive circuit

122‧‧‧Second drive circuit

123, 124‧‧‧ probe group

1231, 1241‧‧‧ transmit end

1232, 1242‧‧‧ Receiver

125‧‧‧Selection circuit

131‧‧‧ Pressure sensing unit

132‧‧‧Temperature sensing unit

14‧‧‧Memory Module

15‧‧‧Transport interface

16‧‧‧

161, 162‧‧‧ bracket

2, 2', 2" ‧ ‧ joint parts

21, 21’, 21”‧‧‧ cable

211‧‧‧ link segment

212‧‧‧Drawing rope

22, 22’‧‧‧ transmission line

23, 23’‧‧‧ floating board

24‧‧‧Pipe hammer device

25‧‧‧ anchoring device

26‧‧‧Floating device

3, 3', 3" ‧ ‧ host

31‧‧‧Control Module

32‧‧‧recording module

33‧‧‧Communication module

34‧‧‧Power Conversion Module

35‧‧‧Control interface

4‧‧‧ Structure

41‧‧‧ Fixed Department

5‧‧‧ fluid

1 is a schematic view showing a first preferred embodiment of the present invention which is connected by a floating plate device and disposed adjacent to a bank; FIG. 2 is a perspective view showing a fluid detector used in the present invention; A system block diagram illustrating the internal components and operation modes of the host and the fluid detector of the present invention; FIG. 4 is a schematic view showing the second preferred embodiment of the present invention coupled by a float ball and a floating plate device and disposed on Where the water level varies greatly; and Figure 5 is a schematic view showing that the third preferred embodiment of the present invention is disposed on a structure such as a pier.

100‧‧‧Unitized mud sand concentration and flow rate ultrasonic measurement system

1‧‧‧Fluid Detector

2‧‧‧Connected parts

21‧‧‧ Cable

22‧‧‧ transmission line

23‧‧‧Float board

24‧‧‧Pipe hammer device

25‧‧‧ anchoring device

3‧‧‧Host

5‧‧‧ fluid

Claims (14)

A unitized mud sand concentration and flow rate ultrasonic measuring system comprises: a connecting component having a transmission line and a cable; a plurality of fluid detectors are disposed in the fluid, and each of the fluid detectors is fixed at intervals The different positions of the cable are used to measure fluid data at different positions, and the cable is fixed at different depth positions in the fluid by a plurality of fixing portions, each of the fluid detectors having: a plurality of probe groups Transmitting/receiving ultrasonic signals in the fluid, a processing module, calculating mud concentration and water flow speed at different positions of the fluid according to the ultrasonic signals received by the probe groups, and a transmission interface, connecting the transmission lines, and outputting The concentration of the mud and the velocity of the water at different positions of the fluid; and a host, and the transmission interface of the fluid detector are connected to each other by the transmission line, and the transmission line receives the mud sand at different positions of the fluids measured by the fluid detectors Concentration and water flow rate were recorded. The unitized mud sand concentration and flow rate ultrasonic measuring system according to the first aspect of the patent application, wherein each of the fluid detectors is arranged in a plurality of cables in a plane or a three-dimensional measuring point. The unitized mud sand concentration and flow rate ultrasonic measuring system according to claim 2, wherein the host has: a control module for controlling the operation of each of the fluid detectors; and a recording module The fluid data measured by the fluid detector plus To record: and a communication module, the recording result of the recording module is sent to the remote end by wireless or wired communication. The unitized mud sand concentration and flow rate ultrasonic measuring system according to claim 2, wherein the host comprises a power conversion module, and the power conversion module supplies the fluid detectors by the transmission line Electricity. The unitized mud sand concentration and flow rate ultrasonic measuring system according to claim 4, wherein the power supply module converts the renewable energy into available power or uses utility power. The unitized mud sand concentration and flow rate ultrasonic measuring system according to any one of claims 2 to 5, wherein each of the fluid detectors has a pressure sensing unit, and the fluid measured by the pressure sensing unit The pressure data is converted into a depth data by the processing module and output to the host via the transmission interface. The unitized mud sand concentration and flow rate ultrasonic measuring system according to any one of claims 2 to 5, wherein each of the fluid detectors has a temperature sensing unit, and the fluid measured by the temperature sensing unit The temperature data is output to the host via the transmission interface. The unitized mud sand concentration and flow rate ultrasonic measuring system according to any one of claims 2 to 5, wherein each of the fluid detectors further has a memory module for storing the fluid data. The unitized mud sand concentration and flow rate ultrasonic measuring system according to any one of claims 2 to 5, wherein the transmission interface is a RS485 interface. The unitized mud sand concentration and flow rate ultrasonic measuring system according to any one of claims 2 to 5, wherein the connecting member further comprises: arranging and suspending the fluid detectors along the cable in a longitudinal direction a floating plate device, a float device, a plumb hammer device or an anchoring device in the fluid. A unit type mud sand concentration and flow rate ultrasonic measuring method, which comprises a host, a connecting component and a plurality of fluid detectors, the connecting component has a transmission line and a cable, and each of the fluid detectors has a majority The probe group transmits/receives an ultrasonic signal to the fluid, and the method includes the following steps: (a) connecting the host and each of the fluid detectors to each other by the transmission line, and each of the fluid detectors is spaced apart Fixed at different positions of the cable, the cable is fixed at a plurality of fixed positions in the fluid at different depth positions; (b) the fluid detector is placed in the fluid with the cable Calculating mud concentration and water flow velocity at different positions of the fluid according to the ultrasonic signals of the probe sets; and (c) receiving, by the host, the concentration of mud sand at different positions of the fluids measured by the fluid detectors The water flow rate is recorded. According to the unit type mud sand concentration and flow rate ultrasonic measuring method described in claim 11, wherein the fluid detector of step (b) further performs the following substeps: (b21) measuring a fluid pressure And (b22) converted into a depth data based on the fluid pressure data; and (b23) output the depth data to the host. According to the unit type mud sand concentration and flow rate ultrasonic measuring method described in claim 11, wherein the host of step (c) further performs the following sub-steps: (c1) transmitting the recorded result to the wireless or wired communication to remote. According to the unit type mud sand concentration and flow rate ultrasonic measuring method described in claim 11, wherein the host of step (c) further performs the following sub-steps: (c2) supplying the fluid detectors through the transmission line The power required.