CN115065936B - Three-dimensional visual positioning method based on light building information model and Bluetooth technology - Google Patents
Three-dimensional visual positioning method based on light building information model and Bluetooth technology Download PDFInfo
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- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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Abstract
The invention relates to a three-dimensional visual positioning method based on a lightweight building information model and a Bluetooth technology, which belongs to the field of three-dimensional visual positioning and comprises the steps of establishing a complete building information model of an application scene, and performing system access after the lightweight building information model is lightweight; establishing a standardized Bluetooth base station model, an indoor Bluetooth beacon model, an outdoor Bluetooth beacon model and a Bluetooth tag card model in a system; according to the positioning accuracy requirements of different areas, a Bluetooth base station model, an indoor Bluetooth beacon model and an outdoor Bluetooth beacon model are arranged in a building informatization model according to different arrangement rules; arranging a real Bluetooth beacon and a Bluetooth base station on site, and setting parameters; wearing Bluetooth tag cards for personnel, mechanical equipment and engineering vehicles entering the site; after the Bluetooth tag card enters the positioning area, the Bluetooth base station receives and transmits the Bluetooth tag card to the server; optimizing the positioning result on the ground and the road; and displaying the positioning position in the building information model in real time.
Description
Technical Field
The invention belongs to the field of three-dimensional visual positioning, and relates to a three-dimensional visual positioning method based on a lightweight building information model and a Bluetooth technology.
Background
The construction industry is one of important material production departments and pillar industries, and meanwhile, the construction industry is also a high-risk industry with multiple safety accidents. How to strengthen the safety management of construction sites, reduce the accident occurrence frequency, stop various illegal operations and non-civilized construction, and improve the quality of construction engineering is an important research subject in front of government departments, industry personnel and scholars at all levels. Under the background, along with the continuous development of technology, the application of informatization means, mobile technology, intelligent wearing and tools in engineering construction stages is continuously improved, and intelligent building site construction is generated. The positioning technology is reliable and easy to implement, can accurately position personnel, equipment, vehicles and special equipment on a construction site in real time, can conveniently and efficiently carry out safe production management and attendance management, and is also an important component part of an intelligent construction site.
Disclosure of Invention
In view of the above, the invention aims to provide a three-dimensional visual positioning method based on a light building information model and a Bluetooth technology, which combines the building information model and the Bluetooth technology to realize visual three-dimensional positioning, and meanwhile, the technology has the advantages of easy implementation, economy and reusability, and solves the problem that people, machines and materials cannot be accurately managed on the current engineering construction site, thereby improving the management level of the construction site and enhancing the safety management and rescue capability of site construction.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a three-dimensional visual positioning method based on a lightweight building information model and a Bluetooth technology comprises the following steps:
s1: establishing a complete building informatization model of an application scene;
s2: the building informatization model is subjected to light weight and system access, parameterization is performed on the model through light weight, and the parameterized model is unified with positioning data information, so that fusion of the model information and the positioning information is realized, and group data is formed;
s3: establishing standardized Bluetooth base station model, indoor Bluetooth beacon model, outdoor Bluetooth beacon model and blue in the system
A dental tag card model;
s4: in the system, according to the positioning precision requirements of different areas and different arrangement rules, the building informatization module
A Bluetooth base station model, an indoor Bluetooth beacon model and an outdoor Bluetooth beacon model are arranged in the system;
s5: according to the arrangement condition in the building informatization model, arranging a real Bluetooth beacon and a Bluetooth base station on site, and according to the following steps
Setting parameters in the system;
s6: wearing Bluetooth tag cards for personnel, mechanical equipment and engineering vehicles entering the site;
s7: after the Bluetooth tag card enters the positioning area, the Bluetooth base station receives the information of the Bluetooth beacon, and transmits the information after the information is summarized
To a server;
s8: the positioning server calculates positioning coordinates through a three-point positioning algorithm, the type of an object can be judged through a parameter attribute reading system, the object can be expressed as a rectangular bounding box after parameterization, the returned positioning parameters form ray vector parameters, whether collision occurs or not is judged through an algorithm ray method, a movement track is corrected, an unreasonable travelling route is avoided, the calculated positioning result is optimized on the ground and a road, and unreasonable wall penetration, table penetration, chair penetration and the like are avoided
The situation occurs;
s9: the positioning position is displayed in the building information model in real time, so that the three-dimensional visual display effect and the complete operation and maintenance information display are achieved, the data are dynamically updated in real time, and the advancing track of the target can be clearly observed.
In step S2, the building information model is uploaded to the server through the web page, and the server automatically performs light weight processing on the building information model.
Further, in step S4, according to the requirements of the positioning scene and the precision, the entire construction site is divided into areas, and according to the signal coverage ranges of the positioning base station and the positioning beacon, the cad plan is marked with a layout of the bluetooth beacon and the bluetooth base station.
Further, in step S5, indoor beacons are arranged indoors, and compression-resistant waterproof beacons are arranged outdoors, so that the problem that most bluetooth beacons in the current market can only be arranged in indoor scenes with good conditions is solved.
Further, in step S5, after the on-site arrangement is completed, the building informatization model is updated according to the actual arrangement position of the on-site, and the equipment is truly restored to the building informatization model.
Further, the Bluetooth tag card is bound with the object to be used, and the position change state of the Bluetooth tag card is updated in real time, so that a track tracking route is formed.
Furthermore, the electronic fence system further comprises an electronic fence function, an interactive operation function of a user and a model is provided on the platform, a safety forbidden zone can be circled on the model by comparing positions in reality, the background can automatically calculate position information generated by parameterizing and positioning the divided regions, and whether the electronic fence is in a frame-selected alarm region or not is judged through an algorithm ray method, so that the electronic fence function is realized.
Further, the intelligent alarm system also comprises a one-key alarm function, active alarm through an alarm button of the tag card, or automatic alarm condition recognition through a system, and alarm is sent out in a mode of notifying relevant responsible persons through short messages and on-site audible and visual alarm prompt.
The invention has the beneficial effects that: by adopting the method and the system, the calculated relative position of the Bluetooth tag card in the building is mapped to the real-time building information model, so that project management personnel can intuitively observe personnel and equipment distribution conditions, and support is provided for the distribution and adjustment of the whole scene resources. The invention adopts the B/S architecture, and after the position is calculated by the server, the service related to the positioning information can be enjoyed by opening the webpage issued by the system on any device communicated with the Internet. The system simultaneously provides a plurality of application services after positioning, including real-time positioning, electronic fence, track tracking, equipment state viewing and the like.
According to the invention, the complicated building information model is lightened at the cloud end, so that the volume of the building information model is greatly reduced under the condition that the system requirement is met, and the building information model can be quickly opened at the webpage end and has good use experience. Meanwhile, a new lightweight algorithm is researched, compared with a general lightweight engine on the market, the lightweight algorithm has better effect on model weight, and meanwhile, as the three-dimensional model consists of group instance components, each component has a unique GUID attribute, and whether the unique value marks a newly added item or not; the display device can fade and display the same items, highlight newly added items, can endow specific material colors, is convenient for statistics, display and management, automatically compares the added contents when the model is updated, displays the newly added items, and has better use effect.
According to the invention, devices such as a Bluetooth beacon, a Bluetooth base station, a Bluetooth tag card and the like can be dynamically implanted into the building information model through the system, so that the traditional building information model can only be updated and upgraded by a designer until a software user can freely add and maintain the building information model.
The invention improves the path constraint algorithm, and by referring to the 'family' of the building information model, not only the building information model is used as a visual carrier, but also the concept and the position data of the 'family' are used, and the positioning result is optimized on reasonable ground and road, so that the unreasonable conditions such as wall penetration, table penetration and chair penetration are avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
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For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a diagram of the working structure of the present invention;
FIG. 2 is a schematic diagram of real-time positioning and display;
fig. 3 is a schematic diagram of trace tracking.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, the invention provides a three-dimensional visual positioning method based on a lightweight building information model and a bluetooth positioning technology, which comprises the following steps:
1) Establishing a complete building informatization model of an application scene;
2) The model is light and the system is accessed; and uploading the model to a server through a webpage, and automatically carrying out light weight processing on the building information model by the server.
3) Establishing a standardized Bluetooth base station model, an indoor Bluetooth beacon model, an outdoor Bluetooth beacon model and a Bluetooth tag card model (3 types of people, machines and materials) in a system;
4) According to the positioning precision requirements of different areas, directly arranging a Bluetooth base station and a Bluetooth beacon in a model through a system according to different arrangement rules; according to the requirements of positioning scenes and precision, dividing the whole construction site into areas, and marking a Bluetooth beacon and a Bluetooth base station layout on a cad plan according to the signal coverage ranges of the positioning base stations and the positioning beacons.
5) The field personnel arrange real Bluetooth beacons and Bluetooth base stations on site according to the arrangement in the model and set according to parameters in the system, wherein indoor beacons are arranged indoors, and compression-resistant waterproof beacons are arranged outdoors, so that the problem that most of Bluetooth beacons in the current market can only be arranged in indoor and other conditions in good scenes is solved; and updating the building information model according to the actual arrangement position, and truly restoring the equipment into the model.
6) Wearing Bluetooth tag cards for personnel, mechanical equipment, engineering vehicles and the like entering a scene;
7) After the Bluetooth tag card enters a positioning area, the Bluetooth base station receives information of a Bluetooth beacon, and after the information is summarized, the information is transmitted to a server through the Bluetooth base station;
8) The positioning server calculates the positioning coordinates through a three-point positioning algorithm, meanwhile, the positioning server is different from the algorithm in the current market, the group data in the building model are introduced, the positioning result is optimized on reasonable ground and roads, and unreasonable conditions such as wall penetration, table penetration and chair penetration are avoided, as shown in fig. 2.
9) The positioning position is displayed in the building information model in real time, so that the three-dimensional visual display effect and the complete operation and maintenance information display are achieved, the data are dynamically updated in real time, and the advancing track of the target can be clearly observed.
And carrying out deep function applications such as personnel binding, track tracking, electronic fence, one-key alarm monitoring and the like on the Bluetooth tag card for generating real-time positioning, wherein the track tracking is shown in fig. 3.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (5)
1. A three-dimensional visual positioning method based on a lightweight building information model and a Bluetooth technology is characterized by comprising the following steps of: the method comprises the following steps:
s1: establishing a complete building informatization model of an application scene;
s2: the building informatization model is light and is accessed into a system, the model is parameterized, and the parameterized model is unified with positioning data information, so that the fusion of the model information and the positioning information is realized, and group data is formed;
s3: establishing a standardized Bluetooth base station model, an indoor Bluetooth beacon model, an outdoor Bluetooth beacon model and a Bluetooth tag card model in a system;
s4: according to the positioning accuracy requirements of different areas in the system, a Bluetooth base station model, an indoor Bluetooth beacon model and an outdoor Bluetooth beacon model are arranged in a building informatization model according to different arrangement rules;
s5: according to the arrangement condition in the building informatization model, real Bluetooth beacons and Bluetooth base stations are arranged on site, and the real Bluetooth beacons and the Bluetooth base stations are set according to parameters in the system; after the field arrangement is completed, updating the building informatization model according to the actual arrangement position of the field, and truly restoring the equipment into the building informatization model;
s6: wearing Bluetooth tag cards for personnel, mechanical equipment and engineering vehicles entering the site;
s7: after the Bluetooth tag card enters the positioning area, the Bluetooth base station receives the information of the Bluetooth beacon, and transmits the information to the server after the information is summarized;
s8: the positioning server solves the positioning coordinates through a three-point positioning algorithm, solves the positioning coordinates through the three-point positioning algorithm, combines the family data generated after the model is light, judges the type of the object through a parameter attribute reading system, expresses the object as a rectangular bounding box after parameterization, forms ray vector parameters through the returned positioning parameters, judges whether collision occurs or not through an algorithm ray method, corrects a movement track, and optimizes the positioning result on the ground and a road;
s9: displaying the positioning position in the building information model in real time;
further comprises: the user performs interactive operation with the building informatization model, a safety forbidden zone is defined on the model by comparing the positions in reality, position information generated by parameterization and positioning of the divided areas is automatically calculated, whether the position information is in a frame-selected alarm area or not is judged through an algorithm ray method, and an electronic fence function is realized; the alarm button of the tag card is used for actively alarming or the system is used for automatically identifying the alarm condition, and meanwhile, alarm information is sent out in a mode of notifying by a short message and giving out on-site audible and visual alarm.
2. The three-dimensional visual positioning method based on the lightweight building information model and the Bluetooth technology according to claim 1, wherein the method comprises the following steps: in step S2, the building information model is uploaded to a server through a web page, and the server automatically performs light weight processing on the building information model.
3. The three-dimensional visual positioning method based on the lightweight building information model and the Bluetooth technology according to claim 1, wherein the method comprises the following steps: in step S4, according to the requirements of the positioning scene and the precision, the whole construction site is divided into areas, and according to the signal coverage ranges of the positioning base station and the positioning beacon, the cad plan is marked with a layout of the bluetooth beacon and the bluetooth base station.
4. The three-dimensional visual positioning method based on the lightweight building information model and the Bluetooth technology according to claim 1, wherein the method comprises the following steps: in step S5, an indoor type beacon is arranged indoors, and a pressure-resistant waterproof type beacon is arranged outdoors.
5. The three-dimensional visual positioning method based on the lightweight building information model and the Bluetooth technology according to claim 1, wherein the method comprises the following steps: binding the Bluetooth tag card with the object to be used, and updating the position change state of the Bluetooth tag card in real time, so that a track tracking route is formed.
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| CN115361661B (en) * | 2022-10-20 | 2023-03-21 | 中用科技有限公司 | Visual industrial management system based on GIS and scene positioning |
| CN117314154B (en) * | 2023-09-14 | 2024-06-04 | 甘肃电通电力工程设计咨询有限公司 | Construction site intelligent monitoring system and method based on Beidou positioning |
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