CN113642173A - High-simulation traction field construction simulation method based on laser cloud - Google Patents
High-simulation traction field construction simulation method based on laser cloud Download PDFInfo
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- CN113642173A CN113642173A CN202110928308.2A CN202110928308A CN113642173A CN 113642173 A CN113642173 A CN 113642173A CN 202110928308 A CN202110928308 A CN 202110928308A CN 113642173 A CN113642173 A CN 113642173A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention relates to a high-simulation traction field construction simulation method based on laser cloud in the field of traction field construction, which comprises the following steps: s1, unmanned aerial vehicle laser radar; s2, laser point cloud of the unmanned aerial vehicle; s3, automatically processing the cloud result: s4, displaying Webgl at the webpage end; s5, importing BIM model components; s6, scene fusion; s7, performing light and shadow rendering by a JavaScript engine; s8, construction simulation, namely, the method collects point cloud data through unmanned aerial vehicle laser radar programming, automatically processes the point cloud data, presents the point cloud data at a webpage end through a Webgl technology, performs shadow rendering through a JavaScript engine, constructs a lightweight traction device by combining a BIM model, achieves the purpose of high-simulation traction field construction simulation, and performs rationality prejudgment on the subsequent construction working condition to be performed.
Description
Technical Field
The invention relates to the construction and field of traction fields, in particular to a high-simulation traction field construction simulation method based on laser cloud.
Background
The BIM construction refers to the fact that construction collision problems frequently encountered in the construction process are processed by means of the BIM technology, and the BIM building information model can coordinate construction collision problems of all specialties in the early stage of building construction to generate coordination data and provide the coordination data. Causing unnecessary waste of human resources and delay of construction period in building construction.
At present, most of the existing traction field construction simulation applications are completed through BIM (building information modeling) construction simulation software of a large quantity at a local end, and the application of lightweight simulation at a web end is lacked, so that a plurality of working groups can complete the pre-construction rationality prejudgment work only through lines.
Based on the method, the invention designs a high-simulation traction field construction simulation method based on the laser cloud to solve the problems.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides a high-simulation traction field construction simulation method based on laser cloud.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a high-simulation traction field construction simulation method based on laser cloud comprises the following steps:
s1, unmanned aerial vehicle laser radar;
s2, laser point cloud of the unmanned aerial vehicle;
s3, automatically processing the cloud result:
s4, displaying Webgl at the webpage end;
s5, importing BIM model components;
s6, scene fusion;
s7, performing light and shadow rendering by a JavaScript engine;
and S8, construction simulation.
Further, the step S4 uses a progressive packetization algorithm to import the S3 acquisition data into Webgl.
Further, in step S5, the building block is imported using the BIM model in the model library.
Further, the construction simulation in step S8 includes the following steps:
(1) three upward pulleys are arranged on the top of each foundation tower;
(2) placing a first-stage guide rope in a pulley middle wheel, placing a line pressing pulley in front of an upper raising tower, and adjusting a pre-deflection angle of the pulley in front of an angle tower;
(3) after all the primary guide ropes of the operation section are put through, manually drawing a secondary guide rope through a three-wheel upward pulley at the tower top;
(4) after the second-level guide rope is pulled through, a special small-sized traction machine is used for pulling a third-level guide rope;
(5) the three-level guide rope is utilized to pull the five three-level guide ropes twice in a one-rope three-rope pulling mode, the pulled guide ropes are pulled through for each time, and the left and right guide ropes are respectively placed into a ground wire guiding pulley at two sides;
(6) during threading, when the last rope-pulling three ropes work is carried out, when the walking board reaches one foundation tower, the middle-item guide rope needs to be unfastened from the walking board, pass through the tower window and be connected to the walking board again, and then is placed in the middle-phase lead pulley after being pulled through.
Furthermore, in the step of pulling three ropes with one rope, if the circuit is a double-circuit, the number of times of pulling three ropes with one rope needs to be increased, and in the case of a short section, a method of pulling five ropes with one rope can be adopted for providing efficiency.
Further, the threading includes the steps of:
a. high-altitude personnel on each foundation tower prepares an anchor rope with the length of 10-15 m and a back-pulling rope with the same length in advance;
b. when the walking board passes through the tower top, the back traction rope is tied to the middle phase guide rope, and then traction is stopped after about 10m of traction is continued;
c. anchoring the middle leading rope by using an anchor rope;
d. the traction field slowly releases the leading rope, and the high-altitude personnel simultaneously withdraw the leading rope until the walking board returns to the tower top;
e. the back pulling rope is unfastened, the connectors of the travelling plate and the middle phase leading rope are disassembled, and the middle phase leading rope penetrates through the tower window and then is reconnected with the travelling plate;
f. and (4) slowly pulling by the pulling field until the anchor rope is not stressed, removing the anchor rope, and then normally pulling by the pulling field.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
according to the method, the point cloud data are acquired by the unmanned aerial vehicle laser radar program, and are automatically processed, the point cloud data can be presented at a webpage end through a Webgl technology, meanwhile, shadow rendering is performed through a JavaScript engine, and building of a BIM model lightweight traction device is combined, so that the purpose of high-simulation traction field construction simulation is achieved, and the rationality prejudgment is performed on the subsequent construction working condition to be performed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a construction flow chart of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a high simulation traction field construction simulation method based on laser cloud includes the following steps:
s1, unmanned aerial vehicle laser radar, utilize unmanned aerial vehicle to carry laser radar and remove to suitable position.
And S2, carrying out laser point cloud on the unmanned aerial vehicle, and emitting laser according to the laser radar to form a cloud model.
And S3, automatically processing the cloud result, and automatically processing the data adaptive to the progressive subpackaging algorithm according to the cloud model generated by the laser.
S4, displaying the webpage Webgl, identifying different types of construction by combining a smart point cloud model of an unmanned aerial vehicle and field oblique photography, wherein the granularity of all component models is consistent with that of real products, for example, all hardware fittings, spacers and the like need to be independently modeled, and the models need to be modeled according to the real products 1: 1, constructing, modeling the line arc verticality according to the actual checking working condition, and dynamically prompting after measuring the safety distance of each position according to three dimensions.
S5, importing BIM model components, and according to the BIM database, importing various models and components in a construction process scene, including but not limited to a tractor, a crossing frame, a tension machine, a crane, a pulley block, a traction rope and the like; all construction details include the need for erecting the tower, erecting a crossing frame, paying off, tightening a line, hoisting an insulator and the like, and the real space is 1: 1 are imported in virtual space.
S6, scene fusion; and adjusting the imported BIM model in the virtual space until the scene is fused to be similar to the scene.
S7, performing light and shadow rendering by a JavaScript engine, drawing actual pixels by combining a rendering tree and layout information, simultaneously fully utilizing the ideas of caching and isolation, avoiding the cost of large performance (GPU and CPU) like backflow and redrawing, and bringing the improvement of animation performance by layering.
S8, construction simulation, comprising the following steps: (1) installing a three-wheel upward pulley on the top of each base tower, (2) placing a first-stage guide rope in a middle wheel of the pulley, arranging a line pressing pulley in front of an upward tower, adjusting the pre-deflection angle of the pulley in front of a corner tower, (3) manually drawing a second-stage guide rope through the three-wheel upward pulley on the top of the tower after all the first-stage guide ropes in an operation section are put through, (4) drawing a third-stage guide rope by using a special small-sized tractor after the second-stage guide ropes are drawn through, (5) drawing the three-stage guide ropes twice in a one-rope three-rope drawing manner by using the third-stage guide ropes, drawing five third-stage guide ropes, putting the left and right two guide ropes into a ground (ground) line pulley respectively on two sides, if the three-rope drawing step is a double-circuit, the times of one rope and three ropes need to be increased, and if the drawing section is short, the five-rope drawing manner can be adopted for providing efficiency, (6) during the drawing, when the last three-rope pulling work is carried out, when the walking board reaches a base tower, the middle-item guide rope needs to be untied from the walking board, penetrates through the tower window and then is connected to the walking board, and is placed in the middle-phase lead pulley after being pulled through, wherein the pulling process further comprises the following steps: a. the method comprises the steps that high-altitude personnel on each foundation tower prepare an anchor rope with the length of 10-15 m and a back-pulling rope with the same length in advance, b, when a walking board passes through the top of the tower, the back-pulling rope is tied to a middle-phase leading rope, then the back-pulling rope is continuously pulled for about 10m and stops pulling, c, the middle-phase leading rope is anchored by the anchor rope, d, the leading rope is slowly released by a pulling field, the high-altitude personnel simultaneously withdraw the back-pulling rope until the walking board returns to the top of the tower, e, the back-pulling rope is released, a connector of the walking board and the middle-phase leading rope is disassembled, the middle-phase leading rope penetrates through a tower window and then is re-connected with the walking board, f, the pulling field slowly pulls until the anchor rope is not stressed, the anchor rope is disassembled, then the pulling field normally pulls, and when the walking board passes through the tower, the walking board is slowly pulled so that the walking board smoothly passes through a pulley. In the traction process, high-altitude personnel pay attention to observe and command and adjust the tension of each leading rope, so that the twisting condition is avoided.
The working principle is as follows:
constructing a virtual space:
firstly, carrying a laser radar by an unmanned aerial vehicle to move to a proper position, collecting cloud data according to a laser radar program, automatically processing the cloud data, presenting the obtained cloud data at a webpage end under the action of a progressive sub-package algorithm through Webgl, rendering the shadow by utilizing a JavaScript engine shadow rendering technology, and finally leading in a BIM model component in a BIM database to construct a real space 1: the virtual space with the proportion of 1 realizes the construction simulation of the high-simulation traction field, and carries out rationality prejudgment on the subsequent construction working condition to be carried out.
And (3) construction simulation:
firstly, two three-wheel upward pulleys are arranged on the top of each foundation tower, then a first-stage guide rope is placed in a middle wheel of each pulley, a line pressing pulley is placed in front of an upward tower, the pre-deflection angle of each pulley is adjusted in front of a corner tower, then after all the first-stage guide ropes in an operation section are put through, a second-stage guide rope is manually pulled through the three-wheel upward pulleys on the top of the tower, then after the second-stage guide ropes are pulled through, a special small-sized traction machine is used for pulling a third-stage guide rope, then, the three-stage guide ropes are used for pulling three ropes twice in a rope-to-rope mode, five third-stage guide ropes are pulled through, the left and right guide ropes are respectively put into a ground (ground) line pulley on two sides, in the rope-to-rope pulling three-rope step, if the double-circuit is adopted, the number of times of pulling three ropes with one rope is increased, and under the condition of the section, the method of pulling five ropes with one rope can be adopted for providing efficiency, then, high-altitude personnel on each foundation tower prepare an anchor rope with the length of 10-15 m and a back-pulling rope with the same length in advance, when the walking board passes through the tower top, the back-pulling rope is tied to the middle-phase leading rope, then the traction is stopped after the walking board is continuously pulled for about 10m, the middle-phase leading rope is anchored by the anchor rope, the leading rope is slowly released by a traction field, the high-altitude personnel simultaneously withdraw the anchor rope until the walking board returns to the tower top, the back-pulling rope is released, the connector of the walking board and the middle-phase leading rope is disassembled, the middle-phase leading rope penetrates through a tower window and then is reconnected with the walking board, the traction field slowly pulls until the anchor rope is not stressed, finally, the traction field normally pulls, and when the walking board passes through the tower, the walking board is slowly pulled so that the walking board can smoothly pass through the pulley. In the traction process, high-altitude personnel pay attention to observe and command and adjust the tension of each leading rope, so that the twisting condition is avoided.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (6)
1. A high-simulation traction field construction simulation method based on laser cloud is characterized by comprising the following steps: the construction method comprises the following steps:
s1, unmanned aerial vehicle laser radar;
s2, laser point cloud of the unmanned aerial vehicle;
s3, automatically processing the cloud result:
s4, displaying Webgl at the webpage end;
s5, importing BIM model components;
s6, scene fusion;
s7, performing light and shadow rendering by a JavaScript engine;
and S8, construction simulation.
2. The method for simulating the construction of the high-simulation traction farm based on the laser cloud as claimed in claim 1, wherein the step S4 utilizes a progressive packing algorithm to import the S3 acquired data into Webgl.
3. The method for simulating the construction of the high-simulation traction farm based on the laser cloud as claimed in claim 1, wherein the step S5 is implemented by using a BIM model in a model library to import the components.
4. The construction simulation method of the high-simulation traction farm based on the laser cloud as claimed in claim 1, wherein the construction simulation in the step S8 comprises the following steps:
(1) three upward pulleys are arranged on the top of each foundation tower;
(2) placing a first-stage guide rope in a pulley middle wheel, placing a line pressing pulley in front of an upper raising tower, and adjusting a pre-deflection angle of the pulley in front of an angle tower;
(3) after all the primary guide ropes of the operation section are put through, manually drawing a secondary guide rope through a three-wheel upward pulley at the tower top;
(4) after the second-level guide rope is pulled through, a special small-sized traction machine is used for pulling a third-level guide rope;
(5) the three-level guide rope is utilized to pull the five three-level guide ropes twice in a one-rope three-rope pulling mode, the pulled guide ropes are pulled through for each time, and the left and right guide ropes are respectively placed into a ground wire guiding pulley at two sides;
(6) during threading, when the last rope-pulling three ropes work is carried out, when the walking board reaches one foundation tower, the middle-item guide rope needs to be unfastened from the walking board, pass through the tower window and be connected to the walking board again, and then is placed in the middle-phase lead pulley after being pulled through.
5. The method as claimed in claim 4, wherein in the step of pulling three ropes with one rope, the number of times of pulling three ropes with one rope needs to be increased if the line is a double-circuit line, and in the case of a short section, a method of pulling five ropes with one rope can be used to provide efficiency.
6. The high-simulation traction farm construction simulation method based on the laser cloud as claimed in claim 4, wherein the penetrating comprises the following steps:
a. high-altitude personnel on each foundation tower prepares an anchor rope with the length of 10-15 m and a back-pulling rope with the same length in advance;
b. when the walking board passes through the tower top, the back traction rope is tied to the middle phase guide rope, and then traction is stopped after about 10m of traction is continued;
c. anchoring the middle leading rope by using an anchor rope;
d. the traction field slowly releases the leading rope, and the high-altitude personnel simultaneously withdraw the leading rope until the walking board returns to the tower top;
e. the back pulling rope is unfastened, the connectors of the travelling plate and the middle phase leading rope are disassembled, and the middle phase leading rope penetrates through the tower window and then is reconnected with the travelling plate;
f. and (4) slowly pulling by the pulling field until the anchor rope is not stressed, removing the anchor rope, and then normally pulling by the pulling field.
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