CN104407633B - Water level measuring system and testing method thereof - Google Patents
Water level measuring system and testing method thereof Download PDFInfo
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- CN104407633B CN104407633B CN201410677796.4A CN201410677796A CN104407633B CN 104407633 B CN104407633 B CN 104407633B CN 201410677796 A CN201410677796 A CN 201410677796A CN 104407633 B CN104407633 B CN 104407633B
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- level measuring
- dehumidifier
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 title abstract description 4
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 230000003993 interaction Effects 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 17
- 230000001276 controlling effect Effects 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 230000005622 photoelectricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Level Indicators Using A Float (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention relates to a water level measuring system and a testing method thereof. The water level measuring system comprises a PLC (programmable logic controller), first to second optical fiber transceivers, first to Nth water level detectors, a man-machine interaction module and a wireless communication module, wherein the man-machine interaction module and the wireless communication module are connected with the PLC. The PLC is connected with the second optical fiber transceiver through an RS485, the second optical fiber transceiver is connected with the first optical fiber transceiver through an optical fiber, the first optical fiber transceiver is connected with the first to Nth water level detectors, and the first to Nth water level detectors are arranged at water-level measuring wells in the upstream and downstream dam. The water level measuring system is simple in circuit structure, accuracy in data transmission by adopting the optical fiber and the RS485 is improved, and the water level measuring system has a water level alarm function and an energy source self-supply function.
Description
Technical field
The present invention relates to a kind of water level measuring and controlling system and method for testing thereof.
Background technology
Water level measuring and controlling system is the important measuring and controlling equipment of hydroelectric power plant, and the water levels of upstream and downstream of hydroelectric power plant is the important of Safety of Flood Control
Data, trash rack pressure reduction affects unit output, waterwork safety, and head value affects speed regulator combination curve, and then affects machine
Group efficiency even safe and stable operation.
The water level measuring and controlling system of hydroelectric power plant there is problems in that in operation maintenance fault rate is high at present；Use cable long
Distance conveying gray code signal, lightning protection, poor anti jamming capability, instrument, sensor are fragile；4 15 binary-coded decimal sensors need 60
Multicore cable is difficult in maintenance；The instrument autgmentability of customization is poor, inputs, exports calibration, parameter tuning operation complexity；Price is high, standby
Product spare parts purchasing difficulty.
Summary of the invention
It is an object of the invention to provide a kind of circuit structure simple, it is easy to accomplish water level measuring and controlling system.
For achieving the above object, the technical scheme is that a kind of water level measuring and controlling system, including PLC, first
To the second fiber optical transceiver, first to N condensate tank of dehumidifier and the human-computer interaction module that is connected with PLC and wireless
Communication module, described PLC is connected to the second fiber optical transceiver through RS485 interface, and described second fiber optical transceiver is through light
Fibre is connected to the first fiber optical transceiver, and described first fiber optical transceiver is connected to N condensate tank of dehumidifier with described first；Described
First is arranged at intervals at the level measuring vertical shaft of dam upstream and downstream to N condensate tank of dehumidifier；Described first examines to N water level
Survey device and include the well logging substrate that is arranged on level measuring vertical shaft, be arranged at the circular base slab on this well logging substrate and with this
The circular base slab vertically fixing support connected, described circular base slab is provided with some ultrasonic sensors, described support
On be provided with runner and for detect runner rotate the number of turns photoelectric encoder, described runner is arranged with steel wire rope, this steel wire rope
Two ends hole on well logging substrate stretches into level measuring vertical shaft, and these steel wire rope two ends are connected to float and weight；Institute
State some ultrasonic sensors and photoelectric encoder is connected to a MCU.
In embodiments of the present invention, described MCU is also associated with GPS locating module, and described MCU and GPS locating module is all provided with
It is placed on described photoelectric encoder.
In embodiments of the present invention, described wireless communication module is connected to machine unit speed regulating device, telemechanical RTU dress through wireless network
Put and be arranged at the audible and visual alarm module of dam control room.
In embodiments of the present invention, described well logging substrate is additionally provided with some solar panels, this solaode
Plate is connected to described MCU.
In embodiments of the present invention, described human-computer interaction module uses LCD touch screen.
Present invention also offers a kind of method of testing using water level measuring and controlling system described above, comprise the steps,
S1: by human-computer interaction module setting measurement parameter, and it is transferred to the MCU of condensate tank of dehumidifier, initialize system；
S2: detect whether described condensate tank of dehumidifier is placed smooth by ultrasonic sensor, until each supersonic sensing
The waterlevel data error of device detection, less than setting threshold value, starts level measuring；
S3: determined the longitude and latitude of level measuring vertical shaft by GPS locating module, and determine level measuring according to this longitude and latitude
Height above sea level residing for vertical shaft；
S4: measured the height of water level in level measuring vertical shaft by photoelectric encoder, and measure with ultrasonic sensor
Height of water level compares, if error is less than designated water level error threshold, then by fiber optical transceiver by altitude data and
Height of water level data are transferred to PLC；
Height of water level data that S5:PLC controller is measured according to each condensate tank of dehumidifier and altitude data, with early warning
Value compares, if beyond early warning value, then notifying management personnel, and send alarm signal, otherwise, continues detection.
Compared to prior art, the method have the advantages that
1, the present invention can gather upstream and downstream and measure the water level information of vertical shaft, and carries out water-level alarm, and use optical fiber and
RS485 improves the accuracy of data transmission, and has water-level alarm function and the energy automatically supplies function, have high reliability and
Accuracy；
2, the present invention uses multiple ultrasonic sensor to compare measurement with photoelectric encoder, improves water level measurement accuracy.
Accompanying drawing explanation
Fig. 1 is one water level measuring and controlling system block diagram of the present invention.
Fig. 2 is condensate tank of dehumidifier circuit block diagram of the present invention.
Fig. 3 is condensate tank of dehumidifier structural representation Fig. 1 of the present invention.
Fig. 4 is condensate tank of dehumidifier structural representation Fig. 2 of the present invention.
In figure, 1 for well logging substrate 2 be level measuring vertical shaft 3 be photoelectric encoder for circular base slab 4 for support 5
6 be runner 7 be solar panel for MCU 11 for ultrasonic sensor 12 for weight 10 for float 9 for steel wire rope 8.
Detailed description of the invention
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
As shown in Figures 1 to 4, a kind of water level measuring and controlling system of the present invention, receive including PLC, the first to the second optical fiber
Send out device, first to N condensate tank of dehumidifier and the human-computer interaction module that is connected with PLC (using general PLC)
And wireless communication module, described PLC is connected to the second fiber optical transceiver, described second optical fiber transceiving through RS485 interface
Device is connected to the first fiber optical transceiver through optical fiber, and described first fiber optical transceiver is with described first to N condensate tank of dehumidifier even
Connect；Described first is arranged at intervals at the level measuring vertical shaft of dam upstream and downstream to N condensate tank of dehumidifier；Described first to
N condensate tank of dehumidifier includes the well logging substrate 1 being arranged on level measuring vertical shaft 2, and the circle being arranged on this well logging substrate 1 is propped up
Fagging 3 and the fixing support 4 that be connected vertical with this circular base slab 3, described circular base slab 3 is provided with some ultrasound wave and passes
Sensor 11, described support 5 is provided with runner 6 and rotates photoelectric encoder (the employing ZKX-6A-of the number of turns for detecting runner 6
50BM7.5T-G05E) 5, described runner 6 is arranged with steel wire rope 7, and these steel wire rope 7 two ends hole on well logging substrate 1 stretches into water
Position measurement vertical shaft 2, and these steel wire rope 7 two ends are connected to float 8 and weight 9；Described some ultrasonic sensors 11 and light
Photoelectric coder 5 is connected to a MCU(and uses 51 series monolithics) 10.
Whether described ultrasonic sensor is placed smooth, if level measurement device is through ultrasonic for sensed water level measurement apparatus
Wave sensor detection placed smooth, then ultrasonic sensor also be convertible into measure level measuring vertical shaft water level, and with light
The water level that photoelectric coder is measured compares.
In order to sensed water level measures the longitude and latitude of vertical shaft, to determine its height above sea level, described MCU is also associated with GPS location
Module, described MCU and GPS locating module may be contained within described photoelectric encoder.
Described wireless communication module is connected to machine unit speed regulating device, telemechanical RTU device through wireless network and is arranged at dam control
The audible and visual alarm module of room processed.
Being additionally provided with some solar panels 12 on described well logging substrate, this solar panel 12 is connected to described
MCU。
Described human-computer interaction module uses LCD touch screen.
Present invention also offers a kind of method of testing using water level measuring and controlling system described above, comprise the steps,
S1: by human-computer interaction module setting measurement parameter, and it is transferred to the MCU of condensate tank of dehumidifier, initialize system；
S2: detect whether described condensate tank of dehumidifier is placed smooth by ultrasonic sensor, until each supersonic sensing
The waterlevel data error of device detection, less than setting threshold value, starts level measuring；
S3: determined the longitude and latitude of level measuring vertical shaft by GPS locating module, and determine level measuring according to this longitude and latitude
Height above sea level residing for vertical shaft；
S4: measured the height of water level in level measuring vertical shaft by photoelectric encoder, and measure with ultrasonic sensor
Height of water level compares, if error is less than designated water level error threshold, then by fiber optical transceiver by altitude data and
Height of water level data are transferred to PLC；
Height of water level data that S5:PLC controller is measured according to each condensate tank of dehumidifier and altitude data, with early warning
Value compares, if beyond early warning value, then notifying management personnel, and send alarm signal, otherwise, continues detection.
Being above presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
With during without departing from the scope of technical solution of the present invention, belong to protection scope of the present invention.
Claims (4)
1. a water level measuring and controlling system, it is characterised in that: include PLC, the first to the second fiber optical transceiver, first to
N condensate tank of dehumidifier and the human-computer interaction module being connected with PLC and wireless communication module, described PLC warp
RS485 interface is connected to the second fiber optical transceiver, and described second fiber optical transceiver is connected to the first fiber optical transceiver, institute through optical fiber
State the first fiber optical transceiver to be connected to N condensate tank of dehumidifier with described first；Described first is spaced to N condensate tank of dehumidifier
It is arranged at the level measuring vertical shaft of dam upstream and downstream；Described first includes being arranged at level measuring to N condensate tank of dehumidifier
Well logging substrate on vertical shaft, is arranged at the circular base slab on this well logging substrate and vertical with this circular base slab fixing is connected
Support, described circular base slab is provided with some ultrasonic sensors, described support is provided with runner and turns for detection
The photoelectric encoder of wheel turning collar number, described runner is arranged with steel wire rope, and these steel wire rope two ends hole on well logging substrate is stretched
Enter level measuring vertical shaft, and these steel wire rope two ends are connected to float and weight；Described some ultrasonic sensors and photoelectricity
Encoder is connected to a MCU；Described MCU is also associated with GPS locating module, and described MCU and GPS locating module may be contained within institute
State on photoelectric encoder；
The method of testing of described water level measuring and controlling system, comprises the steps,
S1: by human-computer interaction module setting measurement parameter, and it is transferred to the MCU of condensate tank of dehumidifier, initialize system；
S2: detect whether described condensate tank of dehumidifier is placed smooth by ultrasonic sensor, until the inspection of each ultrasonic sensor
The waterlevel data error surveyed, less than setting threshold value, starts level measuring；
S3: determined the longitude and latitude of level measuring vertical shaft by GPS locating module, and determine level measuring vertical shaft according to this longitude and latitude
Residing height above sea level；
S4: measure the height of water level in level measuring vertical shaft, and the water level measured with ultrasonic sensor by photoelectric encoder
Highly compare, if error is less than designated water level error threshold, then by fiber optical transceiver by altitude data and water level
Altitude information is transferred to PLC；
Height of water level data that S5:PLC controller is measured according to each condensate tank of dehumidifier and altitude data, enter with early warning value
Row compares, if beyond early warning value, then notifying management personnel, and send alarm signal, otherwise, continues detection.
A kind of water level measuring and controlling system the most according to claim 1, it is characterised in that: described wireless communication module is through wireless network
Network is connected to machine unit speed regulating device, telemechanical RTU device and is arranged at the audible and visual alarm module of dam control room.
A kind of water level measuring and controlling system the most according to claim 1, it is characterised in that: if being additionally provided with on described well logging substrate
Dry solar panel, this solar panel is connected to described MCU.
A kind of water level measuring and controlling system the most according to claim 1, it is characterised in that: described human-computer interaction module uses LCD
Touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677796.4A CN104407633B (en) | 2014-11-24 | 2014-11-24 | Water level measuring system and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410677796.4A CN104407633B (en) | 2014-11-24 | 2014-11-24 | Water level measuring system and testing method thereof |
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| Publication Number | Publication Date |
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| CN104407633A CN104407633A (en) | 2015-03-11 |
| CN104407633B true CN104407633B (en) | 2017-01-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN108549422A (en) * | 2018-04-24 | 2018-09-18 | 陈欣欣 | Water Level Regulating System and its adjusting method |
| CN111910588A (en) * | 2020-08-11 | 2020-11-10 | 安徽省万豪水坝节能技术有限公司 | Intelligent water conservancy hydraulic dam detection control system and method |
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