CN116017338B - Internet of things information acquisition system based on BIM (building information modeling) visual platform - Google Patents

Internet of things information acquisition system based on BIM (building information modeling) visual platform Download PDF

Info

Publication number
CN116017338B
CN116017338B CN202310109453.7A CN202310109453A CN116017338B CN 116017338 B CN116017338 B CN 116017338B CN 202310109453 A CN202310109453 A CN 202310109453A CN 116017338 B CN116017338 B CN 116017338B
Authority
CN
China
Prior art keywords
internet
things
terminal
acquisition
subsystem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310109453.7A
Other languages
Chinese (zh)
Other versions
CN116017338A (en
Inventor
张春轲
牟敦峰
邵珠亮
林本森
郭建国
王敏涛
王洪杰
宋家华
杨峰
张立沛
陈晨
李东升
叶慧玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Shandong Electric Power Co Linshu County Power Supply Co
Original Assignee
State Grid Shandong Electric Power Co Linshu County Power Supply Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Shandong Electric Power Co Linshu County Power Supply Co filed Critical State Grid Shandong Electric Power Co Linshu County Power Supply Co
Priority to CN202310109453.7A priority Critical patent/CN116017338B/en
Priority to CN202311380618.0A priority patent/CN117425134A/en
Publication of CN116017338A publication Critical patent/CN116017338A/en
Application granted granted Critical
Publication of CN116017338B publication Critical patent/CN116017338B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y20/00—Information sensed or collected by the things
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y40/00—IoT characterised by the purpose of the information processing
    • G16Y40/10—Detection; Monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides an Internet of things information acquisition system based on a BIM visual platform, which comprises a management subsystem, a first acquisition subsystem, a mobile acquisition subsystem and an Internet of things terminal subsystem, wherein the management subsystem is connected with the BIM visual platform, the first acquisition subsystem comprises a plurality of main acquisition devices, the mobile acquisition subsystem comprises a plurality of mobile acquisition terminals, and the Internet of things terminal subsystem comprises a plurality of Internet of things terminals. According to the method, relay uploading is carried out on the data of the Internet of things terminal with poor transmission quality by optimizing the relay terminal and the mobile acquisition terminal to actively acquire, so that the reliability of uploading the data of the Internet of things on a construction site is improved.

Description

Internet of things information acquisition system based on BIM (building information modeling) visual platform
Technical Field
The application relates to the technical field of infrastructure management, in particular to an information acquisition system of the Internet of things based on a BIM (building information modeling) visual platform.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
BIM is a building information model (Building Information Modeling), and is a conversion process from a two-dimensional model to a three-dimensional model, and is also a conversion process from the traditional construction of passively ' encountering problems ' to solve the problems ' to actively ' finding the problems and solving the problems '.
The BIM visualization platform is an intelligent process management system which comprehensively utilizes technical means such as the Internet of things, cloud computing, edge computing, artificial intelligence, mobile Internet, BIM, GIS and the like, comprehensively collects and processes data generated in project early planning, implementation and later operation and maintenance processes of personnel, equipment, safety, quality, production, environment and the like, realizes data sharing and business collaboration, and finally realizes comprehensive perception, ubiquitous interconnection, safe operation, intelligent production, efficient collaboration, intelligent decision making and scientific management. The temporary company is advanced to apply BIM+ technology in small-sized foundation construction management of the power grid from 2018, relies on the building of the Mongolian production comprehensive utilization house, the temporary surpasses the electric power engineering service center, and the temporary production comprehensive utilization house project, successfully builds a self BIM visualization platform, explores an advanced management mode suitable for construction management of a constructor, promotes the project to realize intelligent and lean management, and finally realizes the maximization of investment benefit of the small-sized foundation construction project of the power grid.
The BIM visual platform plays a great lifting role in infrastructure management, but is accompanied by massive data uploading of the Internet of things, such as environment monitoring data, video images of a movable camera, internet of things cards for uploading personnel positions, electric energy meters, water meter charging data and the like, and because of dense distribution of buildings, building materials, construction equipment and the like, and the installation position of an Internet of things acquisition terminal in the building and the like, the Internet of things data cannot be uploaded timely and accurately easily, and the reliability is poor, so that the information acquisition system capable of improving the data uploading reliability of the Internet of things to further improve the auxiliary management capability of the BIM visual platform is a problem to be solved when BIM technology is applied in the infrastructure field.
Disclosure of Invention
In order to solve the problems, the application provides the Internet of things information acquisition system based on the BIM visual platform, and relay uploading is carried out on Internet of things terminal data with poor transmission quality by a method of actively acquiring by optimizing a relay terminal and a mobile acquisition terminal, so that the reliability of uploading the Internet of things data on a construction site is improved.
The application provides an information acquisition system of the Internet of things based on a BIM visual platform, which comprises a management subsystem, a first acquisition subsystem, a mobile acquisition subsystem and an Internet of things terminal subsystem, wherein the management subsystem is connected with the BIM visual platform, the first acquisition subsystem comprises a plurality of main acquisition devices, the mobile acquisition subsystem comprises a plurality of mobile acquisition terminals, the Internet of things terminal subsystem comprises a plurality of Internet of things terminals, and the specific steps of the information acquisition of the Internet of things by mutually matching the subsystems are as follows:
s100: the management subsystem acquires acquisition configuration information transmitted by the BIM visualization platform and issues the configuration information to the first acquisition subsystem;
s200: the first acquisition subsystem corrects the terminal position and detects the signal quality of the terminal of the Internet of things, and uploads the detection result to the management subsystem;
s300: the management subsystem adds the terminals of the Internet of things with the signal quality lower than a preset value Limit1 into a set M, adds the other terminals of the Internet of things into a set N, performs relay pairing on the terminals UE_m of the Internet of things in the set M, sets the UE_n which is in horizontal collineation with the UE_m and has the best relay link signal quality as the relay terminal of the UE_m, wherein the UE_n is the terminal of the Internet of things in the set N, the BS_f is a main acquisition device corresponding to the UE_n, and deletes the paired terminals UE_m of the Internet of things from the set M;
s400: the management subsystem determines whether the set M is empty,
if yes, go to step S600;
if not, jumping to the step S500;
s500: the management subsystem determines a mobile acquisition strategy according to the position distribution of the mobile acquisition terminal and the rest of the internet of things terminals in the set M, and issues the mobile acquisition strategy to each mobile acquisition terminal;
s600: the management subsystem schedules the first acquisition subsystem to directly communicate with the Internet of things terminals in the set N, and communicates with the Internet of things terminals which finish pairing in the set M through the relay terminal, and communicates with the Internet of things terminals which finish pairing in the set M through the mobile acquisition subsystem.
Preferably, in step S100, the acquisition configuration information includes at least terminal identification information and terminal initial position distribution, and the management subsystem allocates the internet of things terminal under each main acquisition device according to the acquisition configuration information.
Preferably, in step S200, the specific method for performing position correction and signal quality detection on the terminal of the internet of things by the first acquisition subsystem is as follows:
s201: the method comprises the steps that a main acquisition device measures an uplink signal of a terminal to obtain an uplink measurement quantity of the terminal of the internet of things, and receives a downlink measurement quantity obtained by measuring a downlink signal of the terminal, wherein the downlink measurement quantity is reported by the corresponding terminal of the internet of things, and the downlink signal comprises downlink signals of the corresponding main acquisition device and other main acquisition devices;
s202: and correcting and calculating the position of the terminal of the Internet of things through the uplink measurement quantity and the downlink measurement quantity, and calculating the signal quality of the terminal of the Internet of things relative to each main acquisition device.
Preferably, in step S202, the positioning algorithm includes any one or a combination of several of a fingerprint positioning method, a TDOA positioning method, and an aoa+ta positioning method, and the signal quality determining parameter includes at least a received signal strength indication RSSI;
the measurement information of the uplink measurement quantity and the downlink measurement quantity in the step S201 is determined according to a positioning algorithm and a signal quality judging method.
Preferably, the specific method of step S200 further includes:
s204: and after receiving the detection result uploaded by the first acquisition subsystem, the management subsystem adjusts the configuration relation between the terminal of the Internet of things and the main acquisition device according to the signal quality, updates the position information of the terminal of the Internet of things and uploads the BIM visualization platform.
Preferably, in the step S300, the management subsystem joins the internet of things terminal with signal quality lower than the preset value Limit1 to the set M.
Preferably, in the step S300, the specific method for performing relay pairing on the terminal ue_m of the internet of things in the set M is as follows:
s301: the management subsystem selects a subset n_m in the set N that satisfies (ue_n, bs_f) that is horizontally collinear with ue_m;
s302, selecting any element UE_nm from the subset N_m, calculating the received signal strength RSSI_n1 from the UE_nm to the corresponding main acquisition device BS_fm, calculating the received signal strength RSSI_n2 from the UE_m to the main acquisition device BS_fm, and calculating the absolute value of (RSSI_n1-RSSI_n2);
s303, traversing the subset N_m to obtain UE_nm with the minimum absolute value of (RSSI_n1-RSSI_n2), namely the relay terminal with the UE_m.
Preferably, in the step S500, a specific method for generating the mobile acquisition policy by the management subsystem is as follows:
s501: acquiring site path information and barrier distribution information transmitted by a BIM visual platform;
s502: determining an information acquisition position point set according to the construction site path information, the main acquisition device and the position distribution of the rest of the Internet of things terminals in the set M;
s503: and sequentially connecting the position points of the mobile acquisition terminals and the information acquisition position points according to the path shortest principle, generating a virtual connection path, and further generating the motion trail of each mobile acquisition terminal according to the virtual connection path.
Preferably, in the step S502, the specific method for determining the information collecting location point by the management subsystem is as follows:
s5021: extracting any one of the rest terminals UE_m1 of the Internet of things in the set M, connecting the terminal UE_m1 of the Internet of things with coordinate points of all the main acquisition devices, obtaining intersection points of all the connecting lines and the construction site path, and generating a coordinate set C1;
s5022: optimizing the coordinate set C1 according to the obstacle distribution information, deleting the intersection points of the intersection points and the obstacles affecting the communication efficiency on the connecting line path of the terminal UE_m1 of the Internet of things, and generating a coordinate set C2;
s5023: and selecting a coordinate point with highest signal quality in a coordinate set C2 according to a mobile acquisition signal table preset in the management subsystem, namely an information acquisition position point corresponding to UE_m1, wherein the mobile acquisition signal table is a signal quality record table when the mobile acquisition terminal communicates with the first acquisition subsystem at each position point on a construction site path.
Preferably, in step S600, the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the internet of things terminal in the set M through the relay terminal is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the relay terminal relays communication with the terminal of the Internet of things, namely, the main acquisition device and the relay terminal jointly transmit and receive the terminal of the Internet of things;
the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the incompletely paired Internet of things terminals in the set M through the mobile acquisition subsystem is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the mobile acquisition terminal to relay communication with the terminal of the Internet of things, namely, the main acquisition device and the mobile acquisition terminal are used for jointly receiving and transmitting the terminal of the Internet of things.
Compared with the prior art, the application has the beneficial effects that:
(1) According to the method, the system and the terminal, the signal quality of the terminal of the Internet of things is actively detected, the terminal of the Internet of things with poor transmission quality is identified, the relay terminal is optimized, the mobile acquisition strategy is determined, the reliable uploading of the data of the terminal of the Internet of things with poor transmission quality is realized through the relay terminal and the mobile acquisition terminal, the BIM visualization platform is convenient to timely receive various data of the Internet of things, and reliable and accurate management of a construction site is assisted.
(2) The relay terminal is selected by the main acquisition device, the relay terminal and the corresponding internet of things terminal in a collinear mode, so that transmission path loss is effectively reduced; further, the corresponding internet of things terminal is conveniently transmitted and received in a combined mode through the corresponding main acquisition device and the relay terminal, so that the transmission speed is increased on the basis of reducing the road loss.
(3) According to the method, the information acquisition position points of the mobile acquisition terminals are determined according to the path information, the obstacle distribution information and the collineation principle of the BIM visualization platform, and then the movement track of each mobile acquisition terminal is determined according to the path shortest principle, so that the quality of the mobile acquisition terminal serving as a relay transmission signal and the overall transmission speed are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
Figure 1 is a schematic diagram of the system components of one embodiment of the present application,
figure 2 is a schematic flow diagram of a method according to one embodiment of the application,
figure 3 is a schematic diagram of relay selection in one embodiment of the present application,
figure 4 is a schematic diagram of information acquisition location point generation according to one embodiment of the present application,
fig. 5 is a schematic diagram of motion trail generation of a mobile acquisition terminal according to an embodiment of the present application.
The specific embodiment is as follows:
the application will be further described with reference to the drawings and examples.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present disclosure. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, are merely relational terms determined for convenience in describing structural relationships of the various components or elements of the present disclosure, and do not denote any one of the components or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
As shown in fig. 1 to 2, the application provides an internet of things information acquisition system based on a BIM (building information modeling) visualization platform, which comprises a management subsystem, a first acquisition subsystem, a mobile acquisition subsystem and an internet of things terminal subsystem, wherein the management subsystem is connected with the BIM visualization platform, the first acquisition subsystem comprises a plurality of main acquisition devices, the mobile acquisition subsystem comprises a plurality of mobile acquisition terminals, and the internet of things terminal subsystem comprises a plurality of internet of things terminals.
According to the method, the system and the terminal, the signal quality of the terminal of the Internet of things is actively detected, the terminal of the Internet of things with poor transmission quality is identified, the relay terminal is optimized, the mobile acquisition strategy is determined, the reliable uploading of the data of the terminal of the Internet of things with poor transmission quality is realized through the relay terminal and the mobile acquisition terminal, the BIM visualization platform is convenient to timely receive various data of the Internet of things, and reliable and accurate management of a construction site is assisted.
The application also provides an information acquisition method based on the information acquisition subsystem, which comprises the following specific steps:
s100: the management subsystem acquires acquisition configuration information transmitted by the BIM visualization platform and issues the configuration information to the first acquisition subsystem;
s200: the first acquisition subsystem corrects the terminal position and detects the signal quality of the terminal of the Internet of things, and uploads the detection result to the management subsystem;
s300: the management subsystem adds the terminals of the Internet of things with the signal quality lower than a preset value Limit1 into a set M, adds the other terminals of the Internet of things into a set N, performs relay pairing on the terminals UE_m of the Internet of things in the set M, sets the UE_n which is in horizontal collineation with the UE_m and has the best relay link signal quality as the relay terminal of the UE_m, wherein the UE_n is the terminal of the Internet of things in the set N, the BS_f is a main acquisition device corresponding to the UE_n, and deletes the paired terminals UE_m of the Internet of things from the set M;
s400: the management subsystem determines whether the set M is empty,
if yes, go to step S600;
if not, jumping to the step S500;
s500: the management subsystem determines a mobile acquisition strategy according to the position distribution of the mobile acquisition terminal and the rest of the internet of things terminals in the set M, and issues the mobile acquisition strategy to each mobile acquisition terminal;
s600: the management subsystem schedules the first acquisition subsystem to directly communicate with the Internet of things terminals in the set N, and communicates with the Internet of things terminals which finish pairing in the set M through the relay terminal, and communicates with the Internet of things terminals which finish pairing in the set M through the mobile acquisition subsystem.
Specifically, in step S100, the acquisition configuration information includes at least terminal identification information and terminal initial position distribution, where the terminal identification information is identification information of the terminals of the internet of things, and the terminal initial position distribution is the position of each terminal of the internet of things, and the management subsystem distributes the terminals of the internet of things under each main acquisition device according to the position of the terminal initial position distribution and the position information of the main acquisition device, where the position information of the main acquisition device is stored in the management subsystem or obtained from a BIM visualization platform, where the BIM visualization platform includes a real scene monitoring image of a building site and a three-dimensional virtual model of the building site, so as to provide real path information, obstacle distribution information and other three-dimensional spatial position information of the building site of the construction site.
As shown in the embodiment of fig. 3, BS1 to BS3 are 3 main acquisition devices, UE1 to UE5 are 5 terminals of the internet of things, according to the location distribution, UE1 and UE2 are assigned to BS1 transceiver, UE3 and UE4 are assigned to BS2 transceiver, and UE5 is assigned to BS3 transceiver.
Specifically, in step S200, the specific method for performing position correction and signal quality detection on the terminal of the internet of things by using the first acquisition subsystem is as follows:
s201: the method comprises the steps that a main acquisition device measures an uplink signal of a terminal to obtain an uplink measurement quantity of the terminal of the internet of things, and receives a downlink measurement quantity obtained by measuring a downlink signal of the terminal, wherein the downlink measurement quantity is reported by the corresponding terminal of the internet of things, and the downlink signal comprises downlink signals of the corresponding main acquisition device and other main acquisition devices;
s202: and correcting and calculating the position of the terminal of the Internet of things through the uplink measurement quantity and the downlink measurement quantity, and calculating the signal quality of the terminal of the Internet of things relative to each main acquisition device.
The internet of things terminal comprises a fixed acquisition terminal and a movable acquisition terminal, the position of the movable acquisition (such as a movable monitoring camera) terminal can change according to the construction flow, the progress and the like, and the measurement before the acquisition of the position of the internet of things terminal is very necessary.
Further, in the step S202, the positioning algorithm includes any one or a combination of a plurality of fingerprint positioning methods, TDOA positioning methods, and aoa+ta positioning methods, the signal quality determination parameter includes at least a received signal strength indicator RSSI, and the measurement information of the uplink measurement quantity and the downlink measurement quantity in the step S201 is determined according to the positioning algorithm and the signal quality determination method.
The fingerprint positioning method involves measuring the received power, TDOA (time difference of arrival), timing advance, and AOA+TA (angle of arrival+timing advance).
Fingerprint positioning (finger-printing localization) algorithm is a set of algorithm proposed based on different signal intensity information formed at different positions formed by signal reflection and refraction, wherein the indoor environment is complex. The fingerprint algorithm can well utilize signal information formed by reflection and refraction, firstly generates a fingerprint signal intensity database offline, and calculates the position distance through a group of actually measured RSSI values (Received Signal Strength Indication, received signal intensity) in online positioning. TDOA location is a method of locating using time differences. By measuring the time that the signal arrives at the monitoring station, the distance of the signal source can be determined. The position of the signal can be determined by using the distance from the signal source to each monitoring station (the distance is rounded with the monitoring station as the center and the distance as the radius). However, the absolute time is generally difficult to measure, and by comparing the absolute time differences of the signals reaching each monitoring station, a hyperbola with the monitoring station as a focus and the distance difference as a long axis can be made, and the intersection point of the hyperbolas is the position of the signals. The AOA positioning method is mainly used for measuring the arrival angle between a signal mobile station and a base station, and rays formed by taking the base station as a starting point need to pass through the mobile station, and the intersection point of the two rays is the position of the mobile station. The method can determine the estimated position of the MS by only two base stations; the ta+aoa positioning method is typically only used for network-based positioning, mainly because the AoA can only be measured by the base station, i.e. all measurements related to the positioning method are provided by the base station. These measurements can be provided by the base station to the positioning server, so that the positioning can be achieved by supporting network-based positioning. This also brings about the advantage that terminals that do not support positioning services can also be positioned by this method.
The signal quality is generally determined by combining various manners, such as RSRP, SINR, RSSI, RSRQ, where RSRP is a reference signal received power, SINR is a signal-to-interference-plus-noise ratio, RSRQ is a reference signal received quality, and RSSI is an indication of signal strength received by Received Signal Strength Indication, and an optional portion of a radio transmission layer is used to determine link quality and whether to increase broadcast transmission strength.
The specific method of step S200 further includes:
s204: and after receiving the detection result uploaded by the first acquisition subsystem, the management subsystem adjusts the configuration relation between the terminal of the Internet of things and the main acquisition device according to the signal quality, updates the position information of the terminal of the Internet of things and uploads the BIM visualization platform.
And adjusting the configuration relation between the terminal of the Internet of things and the main acquisition devices according to the strength of the signal quality, namely detecting the signal transmission quality between the terminal of the same Internet of things and each main acquisition device, and attributing the signal transmission quality to the main acquisition device with the highest signal quality for receiving and transmitting.
Specifically, in step S300, the management subsystem adds the internet of things terminal whose signal quality is lower than the preset value Limit1 to the set M, that is, adds the internet of things terminal to the set M if the transmission quality of the internet of things terminal is unreliable relative to the transmission quality of all the main acquisition devices.
Specifically, in the step S300, the specific method for performing relay pairing on the terminal ue_m of the internet of things in the set M is as follows:
s301: the management subsystem selects a subset n_m in the set N that satisfies (ue_n, bs_f) that is horizontally collinear with ue_m;
s302, selecting any element UE_nm from the subset N_m, calculating the received signal strength RSSI_n1 from the UE_nm to the corresponding main acquisition device BS_fm, calculating the received signal strength RSSI_n2 from the UE_m to the main acquisition device BS_fm, and calculating the absolute value of (RSSI_n1-RSSI_n2);
s303, traversing the subset N_m to obtain UE_nm with the minimum absolute value of (RSSI_n1-RSSI_n2), namely the relay terminal with the UE_m.
(UE_n, BS_f) and UE_m are horizontally collinear, namely in the horizontal direction, UE_n, BS_f and UE_m are on the same straight line, N is the terminal number of the Internet of things in the set N, M is the terminal number of the Internet of things in the set M, and_nm is the terminal number of the Internet of things in the subset N_m.
As shown in fig. 3, the signal quality of the internet of things terminal ue_2 belonging to the master acquisition device bs_1 is lower than the preset value Limit1 relative to bs_1 due to the building block, and the signal quality of ue_2 is also lower than the preset value Limit1 relative to other master acquisition devices due to the far distance or the building block, and according to step S301, a set of (ue_5, bs_3) collinear with ue_2 is found, and the relay terminal ue_5 is identified as the relay terminal ue_2 without performing the relay link signal quality comparison in step S302.
Specifically, in the step S500, the specific method for generating the mobile acquisition policy by the management subsystem is as follows:
s501: acquiring site path information and barrier distribution information transmitted by a BIM visual platform;
s502: determining an information acquisition position point set according to the construction site path information, the main acquisition device and the position distribution of the rest of the Internet of things terminals in the set M;
s503: and sequentially connecting the position points of the mobile acquisition terminals and the information acquisition position points according to the path shortest principle, generating a virtual connection path, and further generating the motion trail of each mobile acquisition terminal according to the virtual connection path.
Specifically, in step S502, the specific method for determining the information collection location point by the management subsystem is as follows:
s5021: extracting any one of the rest terminals UE_m1 of the Internet of things in the set M, connecting the terminal UE_m1 of the Internet of things with coordinate points of all the main acquisition devices, obtaining intersection points of all the connecting lines and the construction site path, and generating a coordinate set C1;
s5022: optimizing the coordinate set C1 according to the obstacle distribution information, deleting the intersection points of the intersection points and the obstacles affecting the communication efficiency on the connecting line path of the terminal UE_m1 of the Internet of things, and generating a coordinate set C2;
s5023: and selecting a coordinate point with highest signal quality in a coordinate set C2 according to a mobile acquisition signal table preset in the management subsystem, namely an information acquisition position point corresponding to UE_m1, wherein the mobile acquisition signal table is a signal quality record table when each position point of the mobile acquisition terminal on a construction site path is communicated with the first acquisition subsystem.
The mobile acquisition signal table is a record table of the communication signal quality of each position of the mobile acquisition terminal along the path of the construction site, which is measured in advance, and each main acquisition device of the first acquisition subsystem.
As shown in fig. 4, BS in the figure is each main acquisition device, UE is an internet of things terminal needing mobile acquisition, a white frame part with a dashed frame in the figure is a building, a shadow part between the buildings is a building site path, the UE is connected with each BS to obtain an intersection point (to-be-selected acquisition point) of each branch of the connection line and the path, namely a dot in the figure, a coordinate set C1 is generated according to dot position information, as shown in the figure, an obstacle building exists in the building, an intersection point of the intersection point and an obstacle affecting communication efficiency on the connection path of the internet of things terminal ue_m1 is deleted according to a distribution area of the obstacle building, a coordinate set C2 is generated, a mobile acquisition signal table is checked, and a coordinate point with highest signal quality in the coordinate set C2 is selected, namely an information acquisition position point corresponding to the UE.
As shown in fig. 5, mbs_1 and mbs_2 are mobile acquisition terminals, according to step S503, the location points of the mobile acquisition terminals and the information acquisition location points are sequentially connected, the shortest path is selected as a virtual connection path in various connection schemes, the virtual connection path is cut off according to the location points of the mobile acquisition terminals, and each segment only includes a segment of the mobile acquisition terminal, as shown in fig. 5, the virtual connection path of two segments is divided by a dashed line, and the two segments are the motion trajectories of the mobile acquisition terminals mbs_1 and mbs_2.
Specifically, in the step S600, the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the internet of things terminal in the set M through the relay terminal is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the relay terminal relays communication with the terminal of the Internet of things, namely, the main acquisition device and the relay terminal jointly transmit and receive the terminal of the Internet of things;
the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the incompletely paired Internet of things terminals in the set M through the mobile acquisition subsystem is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the mobile acquisition terminal to relay communication with the terminal of the Internet of things, namely, the main acquisition device and the mobile acquisition terminal are used for jointly receiving and transmitting the terminal of the Internet of things.
The management subsystem schedules the corresponding main acquisition device, the relay terminal, the main acquisition device and the mobile acquisition terminal to transmit and receive the corresponding internet of things terminal in a combined mode, so that the transmission speed is increased on the basis of reducing the road loss, and the speed and the quality of internet of things communication are further improved.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
While the foregoing description of the embodiments of the present application has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the application, but rather, it is intended to cover all modifications or variations within the scope of the application as defined by the claims of the present application.

Claims (9)

1. The system is characterized by comprising a management subsystem, a first acquisition subsystem, a mobile acquisition subsystem and an Internet of things terminal subsystem, wherein the management subsystem is connected with the BIM visualization platform, the first acquisition subsystem comprises a plurality of main acquisition devices, the mobile acquisition subsystem comprises a plurality of mobile acquisition terminals, the Internet of things terminal subsystem comprises a plurality of Internet of things terminals, and the specific steps of Internet of things information acquisition are carried out by mutually matching the subsystems as follows:
s100: the management subsystem acquires acquisition configuration information transmitted by the BIM visualization platform and issues the configuration information to the first acquisition subsystem;
s200: the first acquisition subsystem corrects the terminal position and detects the signal quality of the terminal of the Internet of things, and uploads the detection result to the management subsystem;
s300: the management subsystem adds the terminals of the Internet of things with the signal quality lower than a preset value Limit1 into a set M, adds the other terminals of the Internet of things into a set N, performs relay pairing on the terminals UE_m of the Internet of things in the set M, sets the UE_n which satisfies the horizontal collineation of the UE_n, the BS_f and the UE_m and has the best relay link signal quality as the relay terminal of the UE_m, wherein the UE_n is the terminal of the Internet of things in the set N, the BS_f is a main acquisition device corresponding to the UE_n, and deletes the paired terminals UE_m of the Internet of things from the set M;
s400: the management subsystem determines whether the set M is empty,
if yes, go to step S600;
if not, jumping to the step S500;
s500: the management subsystem determines a mobile acquisition strategy according to the position distribution of the mobile acquisition terminal and the rest of the internet of things terminals in the set M, and issues the mobile acquisition strategy to each mobile acquisition terminal;
s600: the management subsystem schedules the first acquisition subsystem to directly communicate with the Internet of things terminals in the set N, communicates with the Internet of things terminals which finish pairing in the set M through the relay terminal, and communicates with the Internet of things terminals which finish pairing in the set M through the mobile acquisition subsystem;
in step S100, the acquisition configuration information at least includes terminal identification information and terminal initial position distribution, and the management subsystem distributes the internet of things terminal under each main acquisition device according to the acquisition configuration information.
2. The BIM visualization platform-based internet of things information collection system of claim 1, wherein:
in step S200, the specific method for performing position correction and signal quality detection on the terminal of the internet of things by the first acquisition subsystem includes:
s201: the method comprises the steps that a main acquisition device measures an uplink signal of a terminal to obtain an uplink measurement quantity of the terminal of the internet of things, and receives a downlink measurement quantity obtained by measuring a downlink signal of the terminal, wherein the downlink measurement quantity is reported by the corresponding terminal of the internet of things, and the downlink signal comprises downlink signals of the corresponding main acquisition device and other main acquisition devices;
s202: and correcting and calculating the position of the terminal of the Internet of things through the uplink measurement quantity and the downlink measurement quantity, and calculating the signal quality of the terminal of the Internet of things relative to each main acquisition device.
3. The BIM visualization platform based internet of things information collection system of claim 2, wherein:
in step S202, the positioning algorithm includes any one or a combination of several of fingerprint positioning method, TDOA positioning method and aoa+ta positioning method, and the signal quality judging parameter includes at least a received signal strength indication RSSI;
the measurement information of the uplink measurement quantity and the downlink measurement quantity in the step S201 is determined according to a positioning algorithm and a signal quality judging method.
4. The BIM visualization platform based internet of things information collection system of claim 2, wherein:
the specific method of step S200 further includes:
s204: and after receiving the detection result uploaded by the first acquisition subsystem, the management subsystem adjusts the configuration relation between the terminal of the Internet of things and the main acquisition device according to the signal quality, updates the position information of the terminal of the Internet of things and uploads the BIM visualization platform.
5. The BIM visualization platform-based internet of things information collection system of claim 4, wherein:
in step S300, the management subsystem joins the internet of things terminal with signal quality lower than the preset value Limit1 to the set M.
6. The BIM visualization platform based internet of things information collection system of claim 5, wherein:
in the step S300, the specific method for performing relay pairing on the terminal ue_m of the internet of things in the set M is as follows:
s301: the management subsystem selects a subset N_m which satisfies the level collineation of UE_n, BS_f and UE_m from the set N;
s302, selecting any element UE_nm from the subset N_m, calculating the received signal strength RSSI_n1 from the UE_nm to the corresponding main acquisition device BS_fm, calculating the received signal strength RSSI_n2 from the UE_m to the main acquisition device BS_fm corresponding to the UE_nm, and calculating the absolute value of (RSSI_n1-RSSI_n2);
s303, traversing the subset N_m to obtain UE_nm with the minimum absolute value of (RSSI_n1-RSSI_n2), and setting the UE_nm with the minimum absolute value as a relay terminal of the UE_m.
7. The BIM visualization platform based internet of things information collection system of any one of claim 2 or claim 6, wherein:
in the step S500, the specific method for generating the mobile acquisition policy by the management subsystem is as follows:
s501: acquiring site path information and barrier distribution information transmitted by a BIM visual platform;
s502: determining an information acquisition position point set according to the construction site path information, the main acquisition device and the position distribution of the rest of the Internet of things terminals in the set M;
s503: and sequentially connecting the position points of the mobile acquisition terminals and the information acquisition position points according to the path shortest principle, generating a virtual connection path, and further generating the motion trail of each mobile acquisition terminal according to the virtual connection path.
8. The BIM visualization platform based internet of things information collection system of claim 7, wherein:
in step S502, the specific method for determining the information acquisition location point by the management subsystem is as follows:
s5021: extracting any one of the rest terminals UE_m1 of the Internet of things in the set M, connecting the terminal UE_m1 of the Internet of things with coordinate points of all the main acquisition devices, obtaining intersection points of all the connecting lines and the construction site path, and generating a coordinate set C1;
s5022: optimizing the coordinate set C1 according to the obstacle distribution information, deleting the intersection points of the intersection points and the obstacles affecting the communication efficiency on the connecting line path of the terminal UE_m1 of the Internet of things, and generating a coordinate set C2;
s5023: and selecting a coordinate point with highest signal quality in a coordinate set C2 according to a mobile acquisition signal table preset in the management subsystem, wherein the coordinate point with highest signal quality is an information acquisition position point corresponding to UE_m1, and the mobile acquisition signal table is a signal quality record table when the mobile acquisition terminal communicates with the first acquisition subsystem at each position point on a construction site path.
9. The BIM visualization platform based internet of things information collection system of claim 8, wherein:
in the step S600, the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the internet of things terminal in the set M through the relay terminal is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the relay terminal relays communication with the terminal of the Internet of things, namely, the main acquisition device and the relay terminal jointly transmit and receive the terminal of the Internet of things;
the specific method for the management subsystem to schedule the first acquisition subsystem to communicate with the incompletely paired Internet of things terminals in the set M through the mobile acquisition subsystem is as follows:
the management subsystem dispatches the corresponding main acquisition device to directly communicate with the terminal of the Internet of things and the mobile acquisition terminal to relay communication with the terminal of the Internet of things, namely, the main acquisition device and the mobile acquisition terminal are used for jointly receiving and transmitting the terminal of the Internet of things.
CN202310109453.7A 2023-02-14 2023-02-14 Internet of things information acquisition system based on BIM (building information modeling) visual platform Active CN116017338B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202310109453.7A CN116017338B (en) 2023-02-14 2023-02-14 Internet of things information acquisition system based on BIM (building information modeling) visual platform
CN202311380618.0A CN117425134A (en) 2023-02-14 2023-02-14 Internet of things information acquisition method for improving transmission reliability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310109453.7A CN116017338B (en) 2023-02-14 2023-02-14 Internet of things information acquisition system based on BIM (building information modeling) visual platform

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202311380618.0A Division CN117425134A (en) 2023-02-14 2023-02-14 Internet of things information acquisition method for improving transmission reliability

Publications (2)

Publication Number Publication Date
CN116017338A CN116017338A (en) 2023-04-25
CN116017338B true CN116017338B (en) 2023-11-03

Family

ID=86021568

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202311380618.0A Pending CN117425134A (en) 2023-02-14 2023-02-14 Internet of things information acquisition method for improving transmission reliability
CN202310109453.7A Active CN116017338B (en) 2023-02-14 2023-02-14 Internet of things information acquisition system based on BIM (building information modeling) visual platform

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202311380618.0A Pending CN117425134A (en) 2023-02-14 2023-02-14 Internet of things information acquisition method for improving transmission reliability

Country Status (1)

Country Link
CN (2) CN117425134A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11234399A (en) * 1998-02-19 1999-08-27 Nec Eng Ltd Network management system
CN108805243A (en) * 2018-09-21 2018-11-13 中国建筑第七工程局有限公司 It is a kind of that system is managed based on the intelligent and safe of Internet of Things and ultrahigh frequency RFID
CN112446080A (en) * 2020-11-24 2021-03-05 河南汇祥通信设备有限公司 GIS (geographic information System) and BIM (building information modeling + building information modeling) technology-based comprehensive pipe rack operation and maintenance work visualization system and method
CN115456206A (en) * 2022-08-02 2022-12-09 中建铁路投资建设集团有限公司 BIM + GIS-based tunnel construction visual control method and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11234399A (en) * 1998-02-19 1999-08-27 Nec Eng Ltd Network management system
CN108805243A (en) * 2018-09-21 2018-11-13 中国建筑第七工程局有限公司 It is a kind of that system is managed based on the intelligent and safe of Internet of Things and ultrahigh frequency RFID
CN112446080A (en) * 2020-11-24 2021-03-05 河南汇祥通信设备有限公司 GIS (geographic information System) and BIM (building information modeling + building information modeling) technology-based comprehensive pipe rack operation and maintenance work visualization system and method
CN115456206A (en) * 2022-08-02 2022-12-09 中建铁路投资建设集团有限公司 BIM + GIS-based tunnel construction visual control method and system

Also Published As

Publication number Publication date
CN117425134A (en) 2024-01-19
CN116017338A (en) 2023-04-25

Similar Documents

Publication Publication Date Title
CN102149192B (en) Cellular network wireless positioning method based on cooperation of mobile stations
US11373492B2 (en) Intelligent evacuation system and method used in subway station fire
CN109640256B (en) Hierarchical three-dimensional monitoring method and system based on UWB positioning
CN106507411B (en) A kind of LTE work ginseng automatic inspection method based on MR
CN111669707B (en) Method for realizing indoor and outdoor continuous positioning based on 5G active chamber
CN205228401U (en) Surface displacement monitoring system
CN105282757A (en) Multi-operator wireless network collaborative planning system and planning method with optimal network structure
KR101277277B1 (en) Method and apparatus for measuring location using access point and lamp
CN103957508A (en) Accurate underground wireless positioning system and method based on combination of WiFi and gyroscope
CN101888640A (en) Positioning method of city mobile station
CN109286946A (en) Based on without the mobile communication indoor method for optimizing wireless network and system for relying on positioning
CN114363808B (en) Indoor positioning method based on RSSI ranging
CN113873532B (en) Intelligent park 5G network planning method
CN104113912A (en) Indoor locating method for mobile device
CN107659918B (en) Intelligent following method and system
CN111707232A (en) Iron tower attitude early warning device based on big dipper location multi-point is solved
Shen et al. On the reliable localization of WiFi access points
CN116017338B (en) Internet of things information acquisition system based on BIM (building information modeling) visual platform
KR101732870B1 (en) network optimizing position searching system using drone
CN109474887B (en) High-low floor distinguishing method based on LTE signals
CN101534481A (en) Method and system for mobile station location based on special short message, and use of the same
CN212300318U (en) Iron tower attitude early warning device based on big dipper location multi-point is solved
CN110286355A (en) A kind of underground gallery plan position information measurement method and device
CN108471593A (en) A kind of static immobilization method and apparatus based on LTE system
CN117119500B (en) Intelligent CPE (customer premise equipment) module-based inspection robot data transmission optimization method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant