CN103983323A - Hydropower station water level measurement method and system - Google Patents
Hydropower station water level measurement method and system Download PDFInfo
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- CN103983323A CN103983323A CN201410249858.1A CN201410249858A CN103983323A CN 103983323 A CN103983323 A CN 103983323A CN 201410249858 A CN201410249858 A CN 201410249858A CN 103983323 A CN103983323 A CN 103983323A
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Abstract
The invention provides a hydropower station water level measurement method. Two hydraulic sensors are adopted to measure the water level of a hydropower station simultaneously, data measured by the two hydraulic sensors is firstly subjected to amplitude-limiting filtering and then subjected to digital lowpass filtering, the deviation ratio per unit of depth is calculated according to the data filtered twice, and then the water level of the hydropower station is calculated according to the deviation ratio, therefore, the measurement precision is ensured. The invention also provides a hydropower station water level measurement system. When the water level values measured by the two hydraulic sensors have large deviation, the phenomenon indicates that one hydraulic sensor has poor measurement precision and is required to be adjusted or replaced, so that the phenomena that equipment ageing is caused, the measurement result precision is gradually reduced and the problem is difficult to find due to long-time use of only one hydraulic sensor are avoided.
Description
Technical field
The present invention relates to level measuring field, particularly relate to a kind of hydropower station water level measuring method and hydropower station water level monitoring system.
Background technology
The energy difference that unit weight water body between upstream, power station diversion admission section and downstream tailrace outlet section has, often with meter Ji Liang.Generally, with the water-head value representation of two place's sections, be called power station gross head.This is an important parameter of the adjustment hydraulic turbine operation in power station.In hydraulic engineering, level measuring always is the emphasis that reservoir is paid close attention to, and is running under the anomalous weather such as flood, typhoon situation, if the reliable and stable water level monitoring system of neither one carries out early warning, this is easy to lead to major disaster, brings huge loss to the country and people's lives and properties.Fluid pressure type water-level gauge is a kind of by measuring the hydraulic pressure of measurement point, goes out water level depth by hydraulic pressure computing formula inverse.Its computing formula is the depth of water=hydraulic pressure/(acceleration of gravity * water-mass density), and wherein hydraulic pressure does not comprise atmospheric pressure.
At present power station has much for the method for the measurement of water level, and still the reason such as the precision variation of most sensors self is seldom considered, this makes the lengthening along with the working time of equipment, and its measuring accuracy, stability and accuracy all will decrease.This is a problem for the power station that high precision water level is required.The Processing Algorithm that current head calculates often only has simple filtering processing, makes the variation of weather produce serious interference to measurement data.
Summary of the invention
Based on this, be necessary for the hydraulic pressure transducer in power station because long-term use causes ageing equipment, measuring accuracy slowly reduces and causes measuring accuracy not accurate enough but be difficult to found problem, provide effectively improving measurement accuracy of one, even if also can obtain hydropower station water level measuring method and the hydropower station water level monitoring system of the hydropower station water level value of degree of precision at atrocious weather.
The present invention is achieved through the following technical solutions:
A kind of hydropower station water level measuring method, for monitoring the water level in power station, comprises the steps:
Gather the real-time deep information of different depth under the liquid level of power station by two hydraulic pressure transducer A1 and A2;
The real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position;
Real-time deep value M1 and M2 are carried out to digital filtering processing, obtain respectively the real-time deep value B1 of degree of precision, B2;
Calculate the measured deviation rate D of the unit depth of two hydraulic pressure transducers;
Calculate high-precision Real-time Water place value E, E=B2 × D+H2, wherein H2 is the Installation Elevation that records the hydraulic pressure transducer of M2 value.
In above-mentioned hydropower station water level measuring method, the measured deviation rate D of the unit depth of two hydraulic pressure transducers of described calculating, is the ratio of the difference of Installation Elevation and the difference of B1 and B2 of two hydraulic pressure transducer A1 and A2.
Measure the water level depth in power station by two hydraulic pressure transducers, the data that collect according to two hydraulic pressure transducers are the measured deviation rate of the unit of account degree of depth first, then calculate high-precision hydropower station water level value according to the measured deviation rate of unit depth, thereby reduce the error of measuring, make the data of measurement more accurate.
In above-mentioned hydropower station water level measuring method, described real-time deep value M1 and M2 are carried out to digital filtering processing, specifically comprise the steps:
Real-time deep value M1 and M2 are carried out to limit filtration and digital low-pass filtering successively.Measurement data is tended towards stability, strengthen antijamming capability, reduce measuring error.
In above-mentioned hydropower station water level measuring method, the described real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer present positions, comprises the steps:
According to formula: P=ρ gh; Calculate real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position, wherein:
P is the poor of two hydraulic pressure transducer A1 or A2 present position hydraulic pressure and atmospheric pressure, and ρ is the density of water, and g is acceleration of gravity, and h is real-time deep value.
In above-mentioned hydropower station water level measuring method, the output current of two hydraulic pressure transducer A1, A2 and real-time deep value M1, M2 meet following relational expression, C=4+M × 16;
Wherein, C represents the output current of two hydraulic pressure transducers, and M represents the real-time deep value that two hydraulic pressure transducers are surveyed, and 4 and 16 is the values that simulate by hydraulic pressure transducer output current scope.Output current scope is that the hydraulic pressure transducer of 4 to 20 milliamperes is applicable to this formula.
The present invention also provides a kind of hydropower station water level monitoring system:
A kind of hydropower station water level monitoring system, for monitoring the water level in power station, comprises the first hydraulic pressure transducer and the second hydraulic pressure transducer, middle control unit, data processor, supervisory system and display system;
The first hydraulic pressure transducer and the second hydraulic pressure transducer are electrically connected with middle control unit, and middle control unit is electrically connected with data processor, and data processor is electrically connected with supervisory system and display system;
The first hydraulic pressure transducer and the second hydraulic pressure transducer pass to data processor by middle control unit by the real-time deep information collecting, data processor is processed the real-time deep information of the first hydraulic pressure transducer and the transmission of the second hydraulic pressure transducer according to claim to the hydropower station water level measuring method described in any one, calculate high-precision Real-time Water place value.
In above-mentioned hydropower station water level monitoring system, also comprise falling and disturb sleeve, fall and disturb the tubular structure that sleeve is both ends open, fall the sidewall of disturbing sleeve and be provided with breach, the first hydraulic pressure transducer and the second hydraulic pressure transducer are set in two and fall and disturb in sleeve.
In above-mentioned hydropower station water level monitoring system, fall that to disturb sleeve be pvc pipe, its upper end is provided with covers cap, covers cap and is fixed on to fall and disturbs on sleeve, covers cap and covers and fall the upper end open of disturbing sleeve.
In above-mentioned hydropower station water level monitoring system, described middle control unit comprises Data collecting conversion instrument, liquid level display meter head and ac-dc switching power device; Data collecting conversion instrument is electrically connected with the first hydraulic pressure transducer, the second hydraulic pressure transducer and data processor, and liquid level display meter head is electrically connected with Data collecting conversion instrument, and ac-dc switching power device is electrically connected with Data collecting conversion instrument and liquid level display meter head.
In above-mentioned hydropower station water level monitoring system, described Data collecting conversion instrument comprises data collecting card, direct supply interface and chromacoder.
The first hydraulic pressure transducer is electrically connected with data collecting card and direct supply interface, and the second hydraulic pressure transducer is electrically connected with data collecting card and direct supply interface, and data collecting card is electrically connected with data processor by chromacoder.
Compared with prior art, hydropower station water level measuring method of the present invention adopts two hydraulic pressure transducers to measure the water level in power station simultaneously, to first limit filtration of two data that hydraulic pressure transducer is surveyed, then digital low-pass filtering, use the deviation ratio of twice filtered data unit of account degree of depth, finally calculate the water level in power station according to the deviation ratio of unit depth, and collateral security measuring accuracy.When the water level value deviation that records when two hydraulic pressure transducers is larger, one of them hydraulic pressure transducer measuring accuracy deficiency is described, need to adjusts or change.When having avoided because having only had a hydraulic pressure transducer, owing to using for a long time ageing equipment, measurement result is reduced gradually, indiscoverable problem.
Brief description of the drawings
Fig. 1 is the process flow diagram of a kind of embodiment of hydropower station water level measuring method;
Fig. 2 is the annexation schematic diagram of hydropower station water level monitoring system the first embodiment;
Fig. 3 is the annexation refinement figure of middle control unit;
Fig. 4 is the annexation refinement figure of Data collecting conversion instrument;
The structural representation of disturbing sleeve the first embodiment falls in Fig. 5.
In Reference numeral: 1-the first hydraulic pressure transducer, 2-the second hydraulic pressure transducer, 3-, controlling unit, 4-data processor, 5-supervisory system, 6-display system, 7-Data collecting conversion instrument, 8-liquid level display meter head, 9-ac-dc switching power device, 10-direct supply interface, 11-data collecting card, 12-chromacoder, 13-falls and disturbs sleeve, 14-breach, 15-and cover cap.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, by the following examples, and by reference to the accompanying drawings, hydropower station water level measuring method of the present invention and monitoring system are further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in limit invention.
Embodiment 1: as shown in Figure 1, a kind of hydropower station water level measuring method, for monitoring the water level in power station, two hydraulic pressure transducers are placed on to different depth under the liquid level of power station, position current and the wave of two hydraulic pressure transducer settings are as far as possible little, to reduce the impact of external environment on two hydraulic pressure transducers as far as possible.Gather the real-time deep information of different depth under the liquid level of power station by two hydraulic pressure transducer A1 and A2.Preferably, 1.5 meters, two hydraulic pressure transducer intervals, also desirable other is greater than 1 meter and is less than the value of 2 meters, but real distance must measure accurately, and two hydraulic pressure transducers can link together by plastics runner, prevent from flying away under the impact of wave.
The real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position; Can calculate the value of M1 and M2 according to formula P=ρ gh, wherein P represents hydraulic pressure (removing after atmospheric pressure), and ρ represents the density of water, and g is acceleration of gravity, the degree of depth of h representative pressure sensor present position water.
The real-time deep value M1 obtaining and M2 are carried out to digital filtering processing, obtain respectively the real-time deep value B1 of degree of precision, B2;
Calculate the measured deviation rate D of the unit depth of two hydraulic pressure transducers;
Calculate high-precision Real-time Water place value E, E=B2 × D+H2, wherein H2 is the Installation Elevation that records the sensor of M2 value.
The measured deviation rate D of the unit depth of two hydraulic pressure transducers of described calculating is the ratio of the difference of Installation Elevation and the difference of B1 and B2 of two hydraulic pressure transducer A1 and A2.
In above-mentioned hydropower station water level measuring method, real-time deep value M1 and M2 that the described real-time deep information collecting according to two hydraulic pressure transducers is calculated two hydraulic pressure transducer present positions also comprise the steps:
According to formula: P=ρ gh; Calculate real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position, wherein:
P is the poor of two hydraulic pressure transducer A1 or A2 present position hydraulic pressure and atmospheric pressure, and ρ is the density of water, and g is acceleration of gravity, and h is real-time deep value.
In above-mentioned hydropower station water level measuring method, the output current of two hydraulic pressure transducer A1, A2 and real-time deep value M1, M2 meet following relational expression, C=4+M × 16;
Wherein, C represents the output current of two hydraulic pressure transducers, and M represents the real-time deep value that two hydraulic pressure transducers are surveyed, and in above-mentioned relation formula, 4 and 16 is the values that simulate by hydraulic pressure transducer output current scope.
Embodiment 2: as shown in Figure 1, a kind of hydropower station water level measuring method, for monitoring the water level in power station, two hydraulic pressure transducers are placed on to different depth under the liquid level of power station, position current and the wave of two hydraulic pressure transducer settings are as far as possible little, to reduce the impact of external environment on two hydraulic pressure transducers as far as possible.Gather the real-time deep information of different depth under the liquid level of power station by two hydraulic pressure transducer A1 and A2.Preferably, 1.5 meters, two hydraulic pressure transducer intervals, also desirable other is greater than 1 meter and is less than the value of 2 meters, but real distance must measure accurately, and two hydraulic pressure transducers can link together by plastics runner, prevent from flying away under the impact of wave.
The real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position; Can calculate the value of M1 and M2 according to formula P=ρ gh, wherein P represents hydraulic pressure (removing after atmospheric pressure), and ρ represents the density of water, and g is acceleration of gravity, the degree of depth of h representative pressure sensor present position water.
The real-time deep value M1 obtaining and M2 are carried out to digital filtering processing, obtain respectively the real-time deep value B1 of degree of precision, B2;
Calculate the measured deviation rate D of the unit depth of two hydraulic pressure transducers;
Calculate high-precision Real-time Water place value E, E=B2 × D+H2, wherein H2 is the Installation Elevation that records the sensor of M2 value.
This hydropower station water level measuring method is used two hydraulic pressure transducers to measure the water level in power station, above-mentioned digital filtering comprises the limit filtration and the digital low-pass filtering that carry out successively, largely weaken main interference the such as water wave, current, instrument vibration that is positioned at medium-high frequency section, simultaneously, two sensors are close, turn round and look at both institute's temperature influences close, can effectively solve temperature, silt content, the impact of acceleration of gravity on measurement result by the calculating of deviation ratio, proofread and correct by unit deviation rate, make measurement data more accurate.
In above-mentioned hydropower station water level measuring method, real-time deep value M1 and M2 that the described real-time deep information collecting according to two hydraulic pressure transducers is calculated two hydraulic pressure transducer present positions also comprise the steps:
According to formula: P=ρ gh; Calculate real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position, wherein:
P is the poor of two hydraulic pressure transducer A1 or A2 present position hydraulic pressure and atmospheric pressure, and ρ is the density of water, and g is acceleration of gravity, and h is real-time deep value.
In above-mentioned hydropower station water level measuring method, the output current of two hydraulic pressure transducer A1, A2 and real-time deep value M1, M2 meet following relational expression, C=4+M × 16;
Wherein, C represents the output current of two hydraulic pressure transducers, and M represents the real-time deep value that two hydraulic pressure transducers are surveyed.
In above-mentioned hydropower station water level measuring method, described digital filtering processing, specifically comprises the steps:
First to real-time deep value M1, M2 carries out respectively limit filtration, respectively it is carried out to digital low-pass filtering afterwards.Near two hydraulic pressure transducers, there is larger wave, or an aerial falling objects above two hydraulic pressure transducers, all can affect the measuring accuracy of hydraulic pressure transducer, make it survey the sudden change of data short time, by limit filtration processing, eliminate unusual waveforms, make surveyed data smooth transition.In level measuring, mainly disturb from wave and current, their feature is that interference band mainly concentrates on medium-high frequency section, by the method for low-pass filtering, it is weakened, and makes data smooth change more.
As shown in Figure 2, the invention also discloses a kind of hydropower station water level monitoring system, for monitoring the water level in power station, comprise the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2, middle control unit 3, data processor 4, supervisory system 5 and display system 6;
The first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 are electrically connected with middle control unit 3, and middle control unit 3 is electrically connected with data processor 4, and data processor 4 is electrically connected with supervisory system 5 and display system 6;
The first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 pass to data processor 4 by middle control unit 3 by the real-time deep information collecting, data processor 4 processes according to claim to the hydropower station water level measuring method described in any one the real-time deep information that the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 transmit, and calculates high-precision Real-time Water place value.
As shown in Figure 5, in above-mentioned hydropower station water level monitoring system, also comprise falling and disturb sleeve 13, fall and disturb the tubular structure that sleeve 13 is both ends open, falling the sidewall of disturbing sleeve 13 is provided with breach 14, the first hydraulic pressure transducers 1 and the second hydraulic pressure transducer 2 and is set in two and falls and disturb in sleeve 13.
In above-mentioned hydropower station water level monitoring system, fall that to disturb sleeve 13 are pvc pipes, its upper end is provided with covers cap 15, covers cap 15 and is fixed on to fall and disturbs on sleeve 13, covers cap 15 and covers and fall the upper end open of disturbing sleeve 13.
As shown in Figure 3, in above-mentioned hydropower station water level monitoring system, described middle control unit 3 comprises Data collecting conversion instrument 7, liquid level display meter head 8 and ac-dc switching power device 9; Data collecting conversion instrument 7 is electrically connected with the first hydraulic pressure transducer 1, the second hydraulic pressure transducer 2 and data processor 4, liquid level display meter head 8 is electrically connected with Data collecting conversion instrument 7, and ac-dc switching power device is electrically connected with Data collecting conversion instrument 7 and liquid level display meter head 8.
As shown in Figure 4, in above-mentioned hydropower station water level monitoring system, described Data collecting conversion instrument 7 comprises data collecting card 11, direct supply interface 10 and chromacoder 12.
The first hydraulic pressure transducer 1 is electrically connected with data collecting card 11 and direct supply interface 10, and the second hydraulic pressure transducer 2 is electrically connected with data collecting card 11 and direct supply interface 10, and data collecting card 11 is electrically connected with data processor 4 by chromacoder 12.
Principle of work: the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 are arranged on the underwater of power station different depth, the real-time deep information of its present position of Real-time Collection, and the real-time deep information collecting is passed to middle control unit 3, middle control unit 3 converts the real-time deep information receiving from the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 data processor 4 can be identified form to and passes to data processor 4, data processor 4 calculates the high-precision water level value of two hydraulic pressure transducer present positions according to above-mentioned hydropower station water level measuring method, then control display system 6 and show high-accuracy water place value.As a kind of embodiment wherein, the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 are arranged on power station trash rack after, the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 use plastics runner be fixed on the distance at a distance of 1.5 to 2 meters, after trash rack, current are less, the impact that current produce the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 is also less, makes the level measuring information in power station more accurate.
In the time that display system 6 shows that water level value that the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 record differs larger, illustrate that one of them hydraulic pressure transducer breaks down, and needs repairing or changes.Because hydraulic pressure transducer can progressively reduce because ageing equipment causes degree of accuracy, ageing equipment is a process slowly, the skew of its precision will be difficult to find if be only provided with a hydraulic pressure transducer, but adopt two hydraulic pressure transducers to measure water level simultaneously and just can reflect this problem, because the speed of different ageing equipments is not identical, in the time that two data that hydraulic pressure transducer is surveyed differ larger, illustrating that one of them measuring accuracy is not much of that, may be because ageing equipment or break down and need repairing or change.
To fall and disturb sleeve 13 while being placed in water, fall the upper end of disturbing sleeve 13 and stretch out the water surface, it is water-bed more than half meter that water surface distance is stretched in lower end, to be provided with falling of breach 14 and disturb the side direction of current dorsad of sleeve 13, two are fallen and disturb sleeve 13 and be respectively the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 and provide and be connected with the external world but can cushion the measurement environment of wave on its impact, make the measurement data of the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 not be subject to the impact of extraneous weather.Cover cap 15 prevent rain time rainwater the measurement of hydraulic pressure transducer is exerted an influence.
Direct supply interface 10 is the first hydraulic pressure transducer 1, the second hydraulic pressure transducer 2 and data collecting card 11 provide working power, data collecting card 11 receives the real-time deep information that the first hydraulic pressure transducer 1 and the second hydraulic pressure transducer 2 gather, the data of collecting are passed to chromacoder 12 by data collecting card 11, the data that data collecting card 11 collects are electric signal, data collecting card 11 converts the electrical signal to RS485 signal and is then sent to chromacoder 12, chromacoder 12 converts the RS485 signal receiving to data processor 4 readable formats, data processor 4 calculates high-precision hydropower station water level information and passes to supervisory system 5 and display system 6, display system 6 shows high-precision hydropower station water level information, supervisory system 5 is by high-precision hydropower station water level information and default warning line comparison, in the time that the high precision water level information in power station is greater than default warning line, data processor 4 shows alerting signal by display system 6.Data processor 4 can move NET4, ACCESS database, eDNA database (no this item can move at offline mode) and WINDOW XP SP3 and above system.Thereby strengthen the applicability of equipment.
Hydropower station water level monitoring system of the present invention has solved the poor efficiency that causes unit operation because level measuring is inaccurate, unstable, unsafe problems, alleviated traditional water-level gauge cannot self checking and problem that the precision producing along with accumulated time that causes and stability are fallen greatly simultaneously, for power station operates the decision-making foundation that science is provided more efficiently, thereby greatly improve efficiency.
Claims (10)
1. a hydropower station water level measuring method, for monitoring the water level in power station, is characterized in that, comprises the steps:
Gather the real-time deep information of different depth under the liquid level of power station by two hydraulic pressure transducer A1 and A2;
The real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position;
Real-time deep value M1 and M2 are carried out to digital filtering processing, obtain respectively the real-time deep value B1 of degree of precision, B2;
Calculate the measured deviation rate D of the unit depth of two hydraulic pressure transducers;
Calculate high-precision Real-time Water place value E, E=B2 × D+H2, wherein H2 is the Installation Elevation that records the hydraulic pressure transducer of M2 value.
2. hydropower station water level measuring method according to claim 1, is characterized in that, the measured deviation rate D of the unit depth of described two hydraulic pressure transducers is the ratio of the difference of Installation Elevation and the difference of B1 and B2 of two hydraulic pressure transducer A1 and A2.
3. hydropower station water level measuring method according to claim 1, is characterized in that, described real-time deep value M1 and M2 is carried out to digital filtering processing, specifically comprises the steps:
Real-time deep value M1 and M2 are carried out to limit filtration and digital low-pass filtering successively.
4. according to the hydropower station water level measuring method described in claim 2 or 3, it is characterized in that, the described real-time deep information collecting according to two hydraulic pressure transducers is calculated real-time deep value M1 and the M2 of two hydraulic pressure transducer present positions, comprises the steps:
According to formula: P=ρ gh; Calculate real-time deep value M1 and the M2 of two hydraulic pressure transducer A1 and A2 present position, wherein:
P is the poor of two hydraulic pressure transducer A1 or A2 present position hydraulic pressure and atmospheric pressure, and ρ is the density of water, and g is acceleration of gravity, and h is real-time deep value.
5. hydropower station water level measuring method according to claim 4, is characterized in that,
The output current of two hydraulic pressure transducer A1, A2 and real-time deep value M1, M2 meet following relational expression, C=4+M × 16;
Wherein, C represents the output current of two hydraulic pressure transducers, and M represents the real-time deep value that two hydraulic pressure transducers are surveyed, and 4 and 16 is the values that simulate by hydraulic pressure transducer output current scope.
6. a hydropower station water level monitoring system, for monitoring the water level in power station, it is characterized in that, comprise the first hydraulic pressure transducer (1) and the second hydraulic pressure transducer (2), middle control unit (3), data processor (4), supervisory system (5) and display system (6);
The first hydraulic pressure transducer (1) and the second hydraulic pressure transducer (2) are electrically connected with middle control unit (3), middle control unit (3) is electrically connected with data processor (4), and data processor (4) is electrically connected with supervisory system (5) and display system (6);
The first hydraulic pressure transducer (1) and the second hydraulic pressure transducer (2) pass to data processor (4) by middle control unit (3) by the real-time deep information collecting, data processor (4) is processed the real-time deep information of the first hydraulic pressure transducer (1) and the second hydraulic pressure transducer (2) transmission according to the hydropower station water level measuring method described in claim 1 to 5 any one, calculate high-precision Real-time Water place value.
7. hydropower station water level monitoring system according to claim 6, it is characterized in that, also comprise falling and disturb sleeve (13), fall and disturb the tubular structure that sleeve (13) is both ends open, fall the sidewall of disturbing sleeve (13) and be provided with breach (14), the first hydraulic pressure transducer (1) and the second hydraulic pressure transducer (2) are set in two and fall and disturb in sleeve (13).
8. hydropower station water level monitoring system according to claim 7, it is characterized in that, fall that to disturb sleeve (13) be pvc pipe, its upper end is provided with covers cap (15), cover cap (15) and be fixed on and fall that to disturb sleeve (13) upper, cover cap (15) and cover and fall the upper end open of disturbing sleeve (13).
9. hydropower station water level monitoring system according to claim 8, it is characterized in that, described middle control unit (3) comprises Data collecting conversion instrument (7), liquid level display meter head (8) and ac-dc switching power device (9); Data collecting conversion instrument (7) is electrically connected with the first hydraulic pressure transducer (1), the second hydraulic pressure transducer (2) and data processor (4), liquid level display meter head (8) is electrically connected with Data collecting conversion instrument (7), and ac-dc switching power device (9) is electrically connected with Data collecting conversion instrument (7) and liquid level display meter head (8).
10. hydropower station water level monitoring system according to claim 9, it is characterized in that, described Data collecting conversion instrument (7) comprises data collecting card (11), direct supply interface (10) and chromacoder (12);
The first hydraulic pressure transducer (1) is electrically connected with data collecting card (11) and direct supply interface (10), the second hydraulic pressure transducer (2) is electrically connected with data collecting card (11) and direct supply interface (10), and data collecting card (11) is electrically connected with data processor (4) by chromacoder (12).
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| CN104458307A (en) * | 2014-12-05 | 2015-03-25 | 国家电网公司 | Water level control method for energy characteristic test of channel diversion-type hydropower station water turbine |
| CN104634414A (en) * | 2015-01-28 | 2015-05-20 | 国家电网公司 | Water level measurement method based on Butterworth digital low-pass filter |
| CN108731768A (en) * | 2018-03-08 | 2018-11-02 | 哈尔滨工业大学 | A kind of liquid level sensor data correcting method in aircraft portrait center of gravity regulating system |
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| CN203310718U (en) * | 2013-05-10 | 2013-11-27 | 安徽秋田电子有限公司 | Device for measuring density and liquid level height of engine fuel oil |
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| CN104458307A (en) * | 2014-12-05 | 2015-03-25 | 国家电网公司 | Water level control method for energy characteristic test of channel diversion-type hydropower station water turbine |
| CN104458307B (en) * | 2014-12-05 | 2017-03-15 | 国家电网公司 | A kind of power canal development hydraulic turbine energy response tests method for controlling water level |
| CN104634414A (en) * | 2015-01-28 | 2015-05-20 | 国家电网公司 | Water level measurement method based on Butterworth digital low-pass filter |
| CN108731768A (en) * | 2018-03-08 | 2018-11-02 | 哈尔滨工业大学 | A kind of liquid level sensor data correcting method in aircraft portrait center of gravity regulating system |
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