CN114111884A - BIPV roof waterproof coiled material health state monitoring and evaluating method - Google Patents
BIPV roof waterproof coiled material health state monitoring and evaluating method Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 230000036541 health Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000013084 building-integrated photovoltaic technology Methods 0.000 title claims abstract 12
- 238000004364 calculation method Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 15
- 238000004078 waterproofing Methods 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000013210 evaluation model Methods 0.000 claims description 6
- 230000003862 health status Effects 0.000 claims description 4
- 238000010220 Pearson correlation analysis Methods 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000002861 polymer material Substances 0.000 claims 1
- 230000008439 repair process Effects 0.000 description 5
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- 238000013329 compounding Methods 0.000 description 2
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- 239000004566 building material Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Abstract
The invention discloses a BIPV roof waterproof coiled material health state monitoring and evaluating method, which comprises the following steps: s1, acquiring factory simulation detection data of the waterproof roll as a database; s2, uniformly paving the waterproof roll on the roof, and switching on a power supply; s3, monitoring the ammeter values correspondingly connected with the conductive strips in real time, and judging the leakage condition; s4, initializing the horizontal sensor and calibrating initial angle information; s5, acquiring real-time monitoring data of the horizontal sensor, and comparing angle variation to obtain the local deformation of the waterproof roll; and S6, constructing a grid coordinate and matrix model formed among the plurality of horizontal sensors. Has the advantages that: by designing the waterproof roll with the multilayer structure and the high-molecular waterproof material, the waterproof capability and the structural strength of the waterproof roll can be greatly improved, and the good service life is ensured; meanwhile, the specific position information of the leakage can be determined through calculation, so that the leakage can be repaired in time.
Description
Technical Field
The invention relates to the field of waterproof roll application, in particular to a BIPV roof waterproof roll health state monitoring and evaluating method.
Background
BIPV (building integrated PV), a technology for integrating solar power (photovoltaic) products into buildings. Building-integration of photovoltaics is different from the form in which the photovoltaic system is Attached to the Building (BAPV: Building Attached PV). Building integrated photovoltaics can be divided into two main categories: one is the combination of photovoltaic arrays and buildings. The other is the integration of photovoltaic arrays with buildings. Such as a photovoltaic tile roof, a photovoltaic curtain wall, a photovoltaic daylighting roof and the like. In both of these ways, the integration of photovoltaic arrays with buildings is a common form, particularly with building roofing.
And the building roof needs to possess strict waterproof performance, under the prerequisite of guaranteeing self structural design and waterproof nature, need use waterproofing membrane to strengthen the waterproof performance of building roof. The waterproof coiled material mainly plays a role in resisting external rainwater and underground water leakage, can be curled into a coiled flexible building material product, is used as a leakage-free connection between an engineering foundation and a building, is a first barrier for water prevention of the whole engineering, and plays a vital role in the whole engineering.
But the waterproof coiled material roofing still has the water seepage problem in the house after the long-term use, and the general coiled material roofing is designed and required according to I, II, III level, and their life expectancy is 25 years, 15 years, 10 years respectively. However, in the actual use process, the design life is often not reached, the leakage condition in the room is found, some leakage conditions are serious, even the operation of indoor equipment is influenced, and serious consequences that the normal production is influenced, such as tripping of an electric appliance, burning of control equipment and the like are caused.
The roof leakage is caused by the following reasons: 1. the quality problem of construction easily causes the non-lamination of the waterproof coiled materials and the roof, and the leakage of rainwater caused by gaps is generated; 2. the quality problems of the waterproof material and the bonding material are easy to age, poor in durability and easy to deform, so that the waterproof material falls off and cracks, and the waterproof effect and the service life are seriously influenced; 3. the service environment problem, too high temperature or long-term use of the waterproof coiled material can cause long-term adverse effect on the waterproof coiled material, so that the service life is greatly influenced; 4. maintenance and repair are untimely, large-scale waterproofing membrane is difficult to leak or fracture simultaneously, and local seepage still can cause huge influence, but is difficult to in time and accurately find the damage position, is difficult to carry out the pertinence to the damaged department promptly and restores, influences the water-proof effects of life and roofing.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a BIPV (building integrated photovoltaics) roof waterproof coiled material health state monitoring and evaluating method, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
a BIPV roofing waterproof coiled material health state monitoring and evaluating method comprises the following steps:
s1, acquiring factory simulation detection data of the waterproof roll as a database;
s2, uniformly paving the waterproof roll on the roof, and switching on a power supply;
s3, monitoring the ammeter values correspondingly connected with the conductive strips in real time, and judging the leakage condition;
s4, initializing the horizontal sensor and calibrating initial angle information;
s5, acquiring real-time monitoring data of the horizontal sensor, and comparing angle variation to obtain the local deformation of the waterproof roll;
s6, constructing a grid coordinate and matrix model formed among the plurality of horizontal sensors;
s7, constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a deformation data sequence;
and S8, fitting the data sequence and the target characteristic parameters based on a least square method, and constructing a health state evaluation model of the waterproof roll.
Further, the waterproof roll comprises an adhesive layer, a heat-insulating layer, a polymer structure layer and a waterproof layer;
the waterproof roll is characterized in that a plurality of conducting strips are arranged in the polymer structure layer in an equidistant mode in an inserted mode, one end of the waterproof roll is provided with a wiring point, and the distance between every two adjacent conducting strips is 15-35 cm.
Further, the busbar is formed by conducting polymer material through the forming die extrusion and has the uniform resistance characteristic, the busbar passes through one end the junction connection wire, and pass through the wire connects the power, the ampere meter sets up on the wire and establish ties and have the LED pilot lamp, each keep parallelly connected between the ampere meter.
Further, the real-time monitoring of the ammeter values corresponding to the connection of the conductive strips and the judgment of the leakage condition include the following steps:
s31, when the numerical value of the ammeter is zero, the LED indicating lamp is not on, the fact that the waterproof coiled material is not leaked is shown, and the connection between the two adjacent conductive strips is achieved without water seepage;
s32, when the numerical value of the ammeter changes and is not zero, the LED indicating lamp emits light to indicate that the waterproof coiled material leaks, namely, the two adjacent conductive strips are communicated through water seepage, the conductive strips correspondingly connected are found according to the positions of the ammeter and the LED indicating lamp, and leakage position information is determined through calculation.
Further, the calculation formula for determining the leakage position information through calculation is as follows:
wherein X represents the distance of the leakage point from the connection point, L represents the total length of the conductive strip, U represents the supply voltage, and R represents the voltage0The total resistance of the conductive strips is shown, and I represents the current value of the ammeter.
Furthermore, the horizontal sensors are arranged between the heat-insulating layer and the polymer layer and are uniformly arranged in a grid shape, the horizontal sensors are positioned on two sides of the conductive strip, and the distance between every two adjacent horizontal sensors is 15-35 cm;
the grid coordinates comprise an X axis and a Y axis, the conductive strips are parallel to the X axis, and the leakage position information is X-axis coordinate information and Y-axis coordinate information determined in the grid coordinates.
Further, the steps of constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a data sequence comprise the following steps:
s71, constructing initial characteristic parameters according to the local deformation data;
s72, calculating a correlation coefficient between the deformation data sequence and the initial characteristic parameter based on a Pearson correlation analysis method;
and S73, determining the initial characteristic parameters with the correlation coefficients larger than the coefficient threshold value as target characteristic parameters.
Further, the database comprises the temperature stability, extensibility, flexibility and fracture resistance of the waterproof roll, and the maximum deformation quantity borne by the waterproof roll is obtained through factory simulation detection and is used as a preset threshold value.
Furthermore, the matrix model is a real-time position matrix model formed by a plurality of horizontal sensors, and is updated and changed according to the position change of the deformation generated by the waterproof roll, the specific position coordinate change is reflected in the grid coordinate, and each matrix point displays the current real-time angle change quantity of the horizontal sensor.
Further, the health state evaluation model is used for evaluating the health state degree of the waterproof roll, and the calculation formula is as follows:
wherein N represents the degree of health of the waterproof roll material, amaxRepresents the maximum value of the local deformation of the waterproofing membrane and b represents the preset threshold value of the deformation.
The invention has the beneficial effects that: the waterproof coiled material which is of a multilayer structure and is made of the high-molecular waterproof material can greatly improve the waterproof capability and structural strength of the waterproof coiled material and ensure good service life; meanwhile, the conductive strips are added in the polymer structure layer in a compounding manner, so that the structural strength of the conductive strips is ensured, and visual and clear leakage detection is realized by matching the ammeter and the LED lamp through the conductive characteristics of the conductive strips, namely, when leakage occurs, the LED lamp realizes alarm reminding and timely repair, and the specific position information of the leakage can be timely determined through calculation due to the resistance property of the conductive strips, so that the detection and repair can be timely carried out, and the roof is prevented from being damaged by the diffusion of the leakage; in addition, through the level sensor who sets up, can make level through the supplementary waterproofing membrane of angle variation, thereby guarantee the planarization and the wholeness of waterproofing membrane laying process, the effect of reinforcing laying, simultaneously through the real-time update of subsequent angle variation, can provide the real-time reflection of waterproofing membrane health status, thereby accomplish real-time supervision and accurate aassessment, guarantee convenience and the security in the waterproofing membrane use, avoid the emergence of harm such as seepage, fracture and compression deformation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a BIPV roofing waterproof roll health monitoring and evaluating method according to an embodiment of the invention;
fig. 2 is a circuit connection diagram of conductive strips inside a waterproof roll in a BIPV roofing waterproof roll health monitoring and evaluating method according to an embodiment of the invention.
Detailed Description
According to the embodiment of the invention, a BIPV roofing waterproof roll health state monitoring and evaluating method is provided.
Referring now to the drawings and the detailed description, the invention is further described, as shown in fig. 1-2, in accordance with an embodiment of the present invention, a BIPV roofing waterproof roll health monitoring and evaluating method, which includes the following steps:
s1, acquiring factory simulation detection data of the waterproof roll as a database;
the database comprises the temperature stability, extensibility, flexibility and fracture resistance of the waterproof roll, and the maximum deformation quantity borne by the waterproof roll is obtained through factory simulation detection and is used as a preset threshold.
S2, uniformly paving the waterproof roll on the roof, and switching on a power supply;
the waterproof roll comprises an adhesive layer, a heat-insulating layer, a polymer structure layer and a waterproof layer;
as shown in fig. 2, a plurality of conducting strips are inserted into the polymer structure layer at equal intervals, a wiring point is arranged at one end of the waterproof roll, and the distance between two adjacent conducting strips is 15-35 cm.
The busbar is extruded through forming die by electrically conductive macromolecular material and is formed and have the uniform resistance characteristic, the busbar passes through one end the wiring point connecting wire, and pass through the wire connects the power, the ampere meter sets up on the wire and establish ties and have the LED pilot lamp, each keep parallelly connected between the ampere meter.
S3, monitoring the ammeter values correspondingly connected with the conductive strips in real time, and judging the leakage condition;
the real-time monitoring of the ammeter values of the conductive strips in corresponding connection comprises the following steps:
s31, when the numerical value of the ammeter is zero, the LED indicating lamp is not on, the fact that the waterproof coiled material is not leaked is shown, and the connection between the two adjacent conductive strips is achieved without water seepage;
s32, when the numerical value of the ammeter changes and is not zero, the LED indicating lamp emits light to indicate that the waterproof coiled material leaks, namely, the two adjacent conductive strips are communicated through water seepage, the conductive strips correspondingly connected are found according to the positions of the ammeter and the LED indicating lamp, and leakage position information is determined through calculation.
The calculation formula for determining the leakage position information through calculation is as follows:
wherein X represents a distance wiring of a leakage pointDistance of points, L the total length of the conductive strips, U the supply voltage, R0The total resistance of the conductive strips is represented, and I represents the current value of the ammeter;
in addition, the closer the distance between the two conductive strips is, the higher the detection precision is, and the more the timely degree of leakage detection can be improved.
S4, initializing the horizontal sensor and calibrating initial angle information;
as shown in fig. 2, the horizontal sensors are disposed between the insulating layer and the polymer layer and are uniformly arranged in a grid shape, the horizontal sensors are located at two sides of the conductive strip, and a distance between two adjacent horizontal sensors is 15-35 cm;
the grid coordinates comprise an X axis and a Y axis, the conductive strips are parallel to the X axis, and the leakage position information is X-axis coordinate information and Y-axis coordinate information determined in the grid coordinates.
S5, acquiring real-time monitoring data of the horizontal sensor, and comparing angle variation to obtain the local deformation of the waterproof roll;
s6, constructing a grid coordinate and matrix model formed among the plurality of horizontal sensors;
the matrix model is a real-time position matrix model formed by a plurality of horizontal sensors, and is updated and changed according to the position change of the deformation generated by the waterproof coiled material, the specific position coordinate change is reflected in the grid coordinate, and each matrix point displays the current real-time angle change quantity of the horizontal sensor.
S7, constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a deformation data sequence;
wherein, the steps of constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a data sequence comprise the following steps:
s71, constructing initial characteristic parameters according to the local deformation data;
s72, calculating a correlation coefficient between the deformation data sequence and the initial characteristic parameter based on a Pearson correlation analysis method;
and S73, determining the initial characteristic parameters with the correlation coefficients larger than the coefficient threshold value as target characteristic parameters.
And S8, fitting the data sequence and the target characteristic parameters based on a least square method, and constructing a health state evaluation model of the waterproof roll.
Wherein, the health state evaluation model is used for evaluating the health state degree of the waterproof roll, and the calculation formula is as follows:
wherein N represents the degree of health of the waterproof roll material, amaxRepresents the maximum value of the local deformation of the waterproofing membrane and b represents the preset threshold value of the deformation.
In conclusion, by means of the technical scheme, the waterproof coiled material which is of the multilayer structure and is made of the high-molecular waterproof material is designed, so that the waterproof capability and the structural strength of the waterproof coiled material can be greatly improved, and the good service life is ensured; meanwhile, the conductive strips are added in the polymer structure layer in a compounding manner, so that the structural strength of the conductive strips is ensured, and visual and clear leakage detection is realized by matching the ammeter and the LED lamp through the conductive characteristics of the conductive strips, namely, when leakage occurs, the LED lamp realizes alarm reminding and timely repair, and the specific position information of the leakage can be timely determined through calculation due to the resistance property of the conductive strips, so that the detection and repair can be timely carried out, and the roof is prevented from being damaged by the diffusion of the leakage; in addition, through the level sensor who sets up, can make level through the supplementary waterproofing membrane of angle variation, thereby guarantee the planarization and the wholeness of waterproofing membrane laying process, the effect of reinforcing laying, simultaneously through the real-time update of subsequent angle variation, can provide the real-time reflection of waterproofing membrane health status, thereby accomplish real-time supervision and accurate aassessment, guarantee convenience and the security in the waterproofing membrane use, avoid the emergence of harm such as seepage, fracture and compression deformation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A BIPV roof waterproof coiled material health state monitoring and evaluating method is characterized by comprising the following steps:
s1, acquiring factory simulation detection data of the waterproof roll as a database;
s2, uniformly paving the waterproof roll on the roof, and switching on a power supply;
s3, monitoring the ammeter values correspondingly connected with the conductive strips in real time, and judging the leakage condition;
s4, initializing the horizontal sensor and calibrating initial angle information;
s5, acquiring real-time monitoring data of the horizontal sensor, and comparing angle variation to obtain the local deformation of the waterproof roll;
s6, constructing a grid coordinate and matrix model formed among the plurality of horizontal sensors;
s7, constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a deformation data sequence;
and S8, fitting the data sequence and the target characteristic parameters based on a least square method, and constructing a health state evaluation model of the waterproof roll.
2. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 1, wherein the waterproof roll comprises an adhesive layer, a heat insulation layer, a polymer structure layer and a waterproof layer;
the waterproof roll is characterized in that a plurality of conducting strips are arranged in the polymer structure layer in an equidistant mode in an inserted mode, one end of the waterproof roll is provided with a wiring point, and the distance between every two adjacent conducting strips is 15-35 cm.
3. The BIPV roofing waterproofing membrane health status monitoring and assessment method according to claim 2, wherein the conductive strips are made of conductive polymer material extruded through a forming die and have uniform resistance characteristics, the conductive strips are connected with a wire through the connection point at one end and connected with a power supply through the wire, the ammeters are arranged on the wire and connected with LED indicator lamps in series, and the ammeters are kept in parallel.
4. The BIPV roofing waterproofing membrane health status monitoring evaluation method according to claim 3, wherein the real-time monitoring of ammeter values correspondingly connected to the conductive strips and the determination of leakage comprises the steps of:
s31, when the numerical value of the ammeter is zero, the LED indicating lamp is not on, the fact that the waterproof coiled material is not leaked is shown, and the connection between the two adjacent conductive strips is achieved without water seepage;
s32, when the numerical value of the ammeter changes and is not zero, the LED indicating lamp emits light to indicate that the waterproof coiled material leaks, namely, the two adjacent conductive strips are communicated through water seepage, the conductive strips correspondingly connected are found according to the positions of the ammeter and the LED indicating lamp, and leakage position information is determined through calculation.
5. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 4, wherein the calculation formula for determining the leakage position information through calculation is as follows:
wherein X represents the distance of the leakage point from the connection point, L represents the total length of the conductive strip, U represents the supply voltage, and R represents the voltage0The total resistance of the conductive strips is shown, and I represents the current value of the ammeter.
6. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 5, wherein the level sensors are arranged between the insulating layer and the polymer layer and are uniformly arranged in a grid shape, the level sensors are positioned on two sides of the conductive strip, and the distance between two adjacent level sensors is 15-35 cm;
the grid coordinates comprise an X axis and a Y axis, the conductive strips are parallel to the X axis, and the leakage position information is X-axis coordinate information and Y-axis coordinate information determined in the grid coordinates.
7. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 1, wherein the step of constructing target characteristic parameters of the waterproof roll according to the local deformation and calculating a data sequence comprises the following steps:
s71, constructing initial characteristic parameters according to the local deformation data;
s72, calculating a correlation coefficient between the deformation data sequence and the initial characteristic parameter based on a Pearson correlation analysis method;
and S73, determining the initial characteristic parameters with the correlation coefficients larger than the coefficient threshold value as target characteristic parameters.
8. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 1, wherein the database comprises temperature stability, extensibility, flexibility and fracture resistance of the waterproof roll, and the maximum deformation amount of the waterproof roll is obtained through factory simulation detection and is used as a preset threshold.
9. The BIPV roofing water-proof coiled material health state monitoring and evaluation method according to claim 8, wherein the matrix model is a real-time position matrix model formed by a plurality of the level sensors, and is updated and changed according to position change of deformation generated by the water-proof coiled material, the specific position coordinate change is reflected in the grid coordinates, and each matrix point displays the current real-time angle change amount of the level sensor.
10. The BIPV roofing waterproof roll health monitoring and evaluating method according to claim 9, wherein the health state evaluation model is used for evaluating the health state degree of the waterproof roll, and the calculation formula is as follows:
wherein N represents the degree of health of the waterproof roll material, amaxRepresents the maximum value of the local deformation of the waterproofing membrane and b represents the preset threshold value of the deformation.
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