CN116996996A - Intelligent construction site operation and maintenance management and control positioning method and system - Google Patents
Intelligent construction site operation and maintenance management and control positioning method and system Download PDFInfo
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- CN116996996A CN116996996A CN202311255594.6A CN202311255594A CN116996996A CN 116996996 A CN116996996 A CN 116996996A CN 202311255594 A CN202311255594 A CN 202311255594A CN 116996996 A CN116996996 A CN 116996996A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000012423 maintenance Methods 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 141
- 238000004364 calculation method Methods 0.000 claims abstract description 20
- 238000012163 sequencing technique Methods 0.000 claims abstract description 4
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000000750 progressive effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to the technical field of wireless communication networks, and provides an intelligent construction site operation and maintenance management and control positioning method and system, wherein the intelligent construction site operation and maintenance management and control positioning method comprises the following steps: s1, acquiring data: acquiring data packets of field positioning communication nodes from 4-10 field positioning communication base stations, analyzing the distance between the field positioning communication nodes and the field positioning communication base stations according to the acquired data packets, and forward sequencing the field positioning communication nodes according to the distance to obtain a field positioning communication node distance sequence, wherein all the field positioning communication nodes are defined as unknown positioning field positioning communication nodes; s2, selecting the front part; s3, positioning calculation; s4, judging the sequence. The invention can effectively realize progressive positioning by means of other positioning communication nodes on site, ensure that positioning of a large number of site positioning communication nodes can be completed by fewer base stations, and effectively avoid the problems of signal interference, channel congestion and the like.
Description
Technical Field
The invention relates to an intelligent construction site operation and maintenance management and control positioning method and system, and belongs to the technical field of wireless communication networks.
Background
In the prior art, operation and maintenance control of a construction site is required to be well positioned firstly to ensure that people, posts and materials are clear and can be controlled, and currently, for field positioning, two main modes are mainly used, namely GIS (Geographic Information System ) positioning and image recognition.
In the GIS positioning mode, the basis is map data, the map is mainly represented by a plane, and the positioning mainly depends on satellite signals, so that the height information of the GIS positioning in the prior art is inaccurate, and the height information is extremely important on construction sites of construction sites, so that the GIS positioning has an unsatisfactory effect in operation and maintenance management and control of the construction sites.
In the image recognition mode, on one hand, a large amount of data is required to be accurately recognized as a training set to train a recognition model, and the data source is a problem which is difficult to solve, on the other hand, a large amount of high-definition cameras are required to be installed, so that the cost is not very high, the cost is increased virtually, and the situation that the view of a large amount of dust and the like is poor is caused in a construction site for a long time on the other hand, and on the other hand, the image which can be recognized is directly caused, so that the mode is difficult to be applied to the scene of the construction site.
In the prior art, other on-site positioning modes are adopted, such as Zigbee-based or UWB-based modes, but in the prior art, when positioning is adopted in the modes, the positioning is usually realized by completely relying on base station paving, the cost of base station erection and maintenance is high, the problems of irresistance exist, and the wireless signals are obviously attenuated when passing through the reinforced concrete structure due to a large number of reinforced concrete structures in a construction site, so that the paving point of the required base station is exponentially increased relative to other scenes, the problems of high erection and maintenance cost, the direct problems of signal interference, channel congestion and the like exist, and the positioning efficiency and accuracy are seriously influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intelligent construction site operation and maintenance management and positioning method and system, which can effectively realize progressive positioning by means of other positioning communication nodes on site, ensure that a large number of positioning communication nodes on site can be positioned with fewer base stations, and further effectively avoid the problems of signal interference, channel congestion and the like.
The invention is realized by the following technical scheme.
The invention provides an intelligent construction site operation and maintenance control positioning method, which comprises the following steps:
s1, acquiring data: acquiring data packets of field positioning communication nodes from 4-10 field positioning communication base stations, analyzing the distance between the field positioning communication nodes and the field positioning communication base stations according to the acquired data packets, forward sequencing the field positioning communication nodes according to the distance to obtain a field positioning communication node distance sequence, defining all the field positioning communication nodes as unknown positioning field positioning communication nodes, storing the positioning data of all the field positioning communication nodes into historical data, and then emptying;
s2, selecting: selecting N pieces of front unknown positioning field positioning communication node data according to the field positioning communication node distance sequence;
s3, positioning calculation: according to a space four-point positioning method, taking the position of a field positioning communication base station or a known positioning field positioning communication node as a known position point, taking the field positioning communication node as a to-be-positioned point, and carrying out parallel positioning calculation on the data of the selected N field positioning communication nodes to obtain positioning data of the N field positioning communication nodes;
s4, judging the sequence: and judging whether the field positioning communication nodes in the field positioning communication node distance sequence have positioning data or not, if not, returning to the step S2.
In the step S4, the following steps are performed before returning to the step S2:
s4.2, changing definition: the field location communication node for which the location data is obtained in step S3 is defined as a known location field location communication node.
After the step S4, the method further includes the following steps:
s5, checking the distance: judging whether the moving speed of the field positioning communication node exceeds a preset range or not according to the comparison of the historical data and the current data of the field positioning communication node, if so, entering the next step, otherwise, returning;
s6, marking abnormality: after marking the field positioning communication node with the moving speed exceeding the preset range, returning to the step S1 to execute the next flow period;
s7, tracking and monitoring: and in each positioning period before the execution of the next flow period, carrying out positioning calculation on the marked field positioning communication node acquired data packet, and correcting the positioning of the marked field positioning communication node according to the positioning calculation result.
The preset range is determined according to the geographical position range, and the types of the geographical position range are divided into a walking area, a driving area and an elevator area.
The flow period is 60-600S, and each flow period is started only once in step S1.
The positioning period is 1-10 ms, and the field positioning communication node only sends a data packet once in each positioning period.
In step S7, the untagged field location communication node keeps the communication muted.
The field positioning communication base station is a LoRa positioning base station, and the field positioning communication node is a LoRa terminal node.
The invention also provides an intelligent construction site operation and maintenance management and positioning system, which comprises a center server, a site center, a site base station and a site node, wherein,
the central server and the site center communicate through Ethernet;
the central server or the field center is used for realizing the intelligent construction site operation and maintenance control positioning method, and the CPU core number calculated by the central server or the field center is one larger than the value of N;
the field base station realizes the field positioning communication base station function of the intelligent construction site operation and maintenance management and control positioning method;
the field node realizes the field positioning communication node function of the intelligent construction site operation and maintenance management and control positioning method.
The site base station is internally provided with a LoRa positioning gateway module for realizing the function of the site positioning communication base station, and the site node is internally provided with a LoRa positioning chip for realizing the function of the site positioning communication node.
The invention has the beneficial effects that: the progressive positioning can be effectively realized by means of other positioning communication nodes on site, and the positioning of a large number of positioning communication nodes on site can be ensured to be completed by fewer base stations, so that the problems of signal interference, channel congestion and the like are effectively avoided.
Drawings
FIG. 1 is a schematic flow chart of one embodiment of the present invention;
fig. 2 is a schematic diagram of a connection of another embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
The first embodiment of the invention relates to an intelligent construction site operation and maintenance control positioning method, which is shown in fig. 1 and comprises the following steps:
s1, acquiring data: acquiring data packets of field positioning communication nodes from 4-10 field positioning communication base stations, analyzing the distance between the field positioning communication nodes and the field positioning communication base stations according to the acquired data packets, forward sequencing the field positioning communication nodes according to the distance to obtain a field positioning communication node distance sequence, defining all the field positioning communication nodes as unknown positioning field positioning communication nodes, storing the positioning data of all the field positioning communication nodes into historical data, and then emptying;
s2, selecting: selecting N pieces of front unknown positioning field positioning communication node data according to the field positioning communication node distance sequence;
s3, positioning calculation: according to a space four-point positioning method, taking the position of a field positioning communication base station or a known positioning field positioning communication node as a known position point, taking the field positioning communication node as a to-be-positioned point, and carrying out parallel positioning calculation on the data of the selected N field positioning communication nodes to obtain positioning data of the N field positioning communication nodes;
s4, judging the sequence: and judging whether the field positioning communication nodes in the field positioning communication node distance sequence have positioning data or not, if not, returning to the step S2.
In general, in the present field location communication technology, broadcast communication is easy to implement, typically, the LoRa technology, and the communication sent by each node may be received by all other nodes, whereas each node may also receive the communication of all other nodes, so in the implementation described above, the data packet of each field location communication node should include the distance data of all other nodes received by the data packet, so in technical terms, the process of actually receiving the data packet from the field location communication base station should be two receiving processes, one of which is to receive the communication of the field location communication node to generate the data packet (including the distance data to the field location communication node), and the other is to receive the data packet.
Accordingly, it is easy to generate distance data in the current field location communication technology, and the distance data can be easily converted based on the received signal strength value by acquiring the received signal strength value of the communication chip, i.e., RSSI (Received Signal Strength Indication).
For the spatial four-point positioning method, the spatial coordinates of the field positioning communication base station are fixed and determined, while the coordinates of the field positioning communication node are determined after calculation, and since all distance data come from one communication period, the coordinates of the field positioning communication node are fixed relative to the communication period, the spatial coordinates of the field positioning communication base station and the spatial coordinates of the field positioning communication node with known positioning (after calculation) are both known spatial coordinates, and can be regarded as the same type of spatial coordinates for positioning calculation. Assume that four known spatial coordinates are (x 1 , y 1 , z 1 )、(x 2 , y 2 , z 2 )、(x 3 , y 3 , z 3 )、(x 4 , y 4 , z 4 ) On-site positioning communication node to be positioned currentlyThe spatial coordinates of the point are (x, y, z), and the distances from the spatial coordinates of the field location communication node to be located to the four known spatial coordinates are p 1 、p 2 、p 3 、p 4 The distances are the distance data, and the space coordinates of the field positioning communication nodes to be positioned currently are (x, y, z) which are easily calculated based on a four-point positioning method in the prior art, so that the space coordinates of all the field positioning communication nodes can be calculated by traversing all the field positioning communication nodes. In the prior art, the four-point positioning method generally has two basic ideas, and specific algorithms are approximately the same, wherein one typical implementation algorithm suitable for spatial positioning in the invention is described in three-dimensional spatial positioning algorithm based on four-node RSSI (Dai Chenchong, etc., computer measurement and control, 2016 (1 st year)).
It is easy to understand that the value of N should be matched with the number of CPU cores of the computer for implementation, and n=cpu core number-1 is generally taken, because the process of calculating the distance between the individual nodes is generally not easy to decompose and the instruction of multi-core synchronous execution is performed, and the mode of N synchronous calculation is adopted, so that the mode of multi-core synchronous calculation of the CPU is convenient to implement, and the calculation speed is greatly improved.
The second embodiment of the present invention is substantially the same as the first embodiment, and is mainly characterized in that in step S4, the following steps are performed before returning to step S2:
s4.2, changing definition: the field location communication node for which the location data is obtained in step S3 is defined as a known location field location communication node.
Thus, this embodiment is a preferred solution for achieving progressive positioning.
The third embodiment of the present invention is substantially the same as the first embodiment, and mainly includes the following steps after step S4:
s5, checking the distance: judging whether the moving speed of the field positioning communication node exceeds a preset range or not according to the comparison of the historical data and the current data of the field positioning communication node, if so, entering the next step, otherwise, returning;
s6, marking abnormality: after marking the field positioning communication node with the moving speed exceeding the preset range, returning to the step S1 to execute the next flow period;
s7, tracking and monitoring: and in each positioning period before the execution of the next flow period, carrying out positioning calculation on the marked field positioning communication node acquired data packet, and correcting the positioning of the marked field positioning communication node according to the positioning calculation result.
In practice, the problem of inaccurate RSSI value in a complex environment should be considered, so that the corresponding distance data may have deviation, thereby causing positioning misalignment, and the real-time correction difficulty is high, so that the positioning correction can be effectively performed by utilizing the characteristic that the positioning frequency does not need to be too high and by a follow-up tracking and monitoring mode.
Further, the preset range is determined according to the geographical position range, and the types of the geographical position range are divided into a walking area, a driving area and an elevator area. Obviously, the preset range and the speed are the same dimension, and the speeds are different under different conditions, for example, the speed of the height change of a field person in an elevator can be obviously higher than the speed of the field person walking on the flat ground, so that the preset range is set in a partition mode to judge the speed, thereby identifying the positioning deviation and being more in line with the actual condition of a construction site.
Further, the process cycle is 60 to 600S, and each process cycle is started only once in step S1.
Furthermore, the positioning period is 1-10 ms, and the field positioning communication node only sends a data packet once in each positioning period.
Further, in step S7, the untagged field location communication node keeps the communication muted.
Preferably, the field positioning communication base station is a LoRa positioning base station, and the field positioning communication node is a LoRa terminal node.
A fourth embodiment of the present invention relates to an intelligent construction site operation and maintenance control location system as shown in fig. 2, comprising a center server, a site center, a site base station and a site node, wherein,
the central server and the site center communicate through Ethernet;
the first to third embodiments are implemented by a central server or a field center, and the central server or the field center is used for implementing the calculation of CPU core number which is one larger than the value of N;
the field base station realizes the field positioning communication base station functions of the first to third embodiments;
the field node implements the field positioning communication node functions of the first to third embodiments described above.
Preferably, the site base station is internally provided with a LoRa positioning gateway module for realizing the function of the site positioning communication base station, and the site node is internally provided with a LoRa positioning chip for realizing the function of the site positioning communication node.
Claims (10)
1. An intelligent construction site operation and maintenance control positioning method is characterized by comprising the following steps:
s1, acquiring data: acquiring data packets of field positioning communication nodes from 4-10 field positioning communication base stations, analyzing the distance between the field positioning communication nodes and the field positioning communication base stations according to the acquired data packets, forward sequencing the field positioning communication nodes according to the distance to obtain a field positioning communication node distance sequence, defining all the field positioning communication nodes as unknown positioning field positioning communication nodes, storing the positioning data of all the field positioning communication nodes into historical data, and then emptying;
s2, selecting: selecting N pieces of front unknown positioning field positioning communication node data according to the field positioning communication node distance sequence;
s3, positioning calculation: according to a space four-point positioning method, taking the position of a field positioning communication base station or a known positioning field positioning communication node as a known position point, taking the field positioning communication node as a to-be-positioned point, and carrying out parallel positioning calculation on the data of the selected N field positioning communication nodes to obtain positioning data of the N field positioning communication nodes;
s4, judging the sequence: and judging whether the field positioning communication nodes in the field positioning communication node distance sequence have positioning data or not, if not, returning to the step S2.
2. The intelligent construction site operation and maintenance control positioning method according to claim 1, wherein in the step S4, the following steps are performed before returning to the step S2:
s4.2, changing definition: the field location communication node for which the location data is obtained in step S3 is defined as a known location field location communication node.
3. The intelligent construction site operation and maintenance control positioning method according to claim 1, further comprising the following steps after the step S4:
s5, checking the distance: judging whether the moving speed of the field positioning communication node exceeds a preset range or not according to the comparison of the historical data and the current data of the field positioning communication node, if so, entering the next step, otherwise, returning;
s6, marking abnormality: after marking the field positioning communication node with the moving speed exceeding the preset range, returning to the step S1 to execute the next flow period;
s7, tracking and monitoring: and in each positioning period before the execution of the next flow period, carrying out positioning calculation on the marked field positioning communication node acquired data packet, and correcting the positioning of the marked field positioning communication node according to the positioning calculation result.
4. The intelligent construction site operation and maintenance control positioning method according to claim 3, wherein the preset range is determined according to a geographical location range, and the type of the geographical location range is divided into a walking area, a driving area and an elevator area.
5. The method of claim 3, wherein the process cycle is 60-600S, and each process cycle is started only once in step S1.
6. The intelligent construction site operation and maintenance control positioning method according to claim 3, wherein the positioning period is 1-10 ms, and the site positioning communication node only transmits a data packet once in each positioning period.
7. The intelligent construction site operation and maintenance control positioning method according to claim 3, wherein in the step S7, the untagged field positioning communication node keeps communication muted.
8. A method of intelligent construction site operation and maintenance management and positioning according to claim 1 or 3, wherein the field positioning communication base station is a LoRa positioning base station, and the field positioning communication node is a LoRa terminal node.
9. An intelligent construction site operation and maintenance control positioning system is characterized by comprising a center server, a site center, a site base station and a site node, wherein,
the central server and the site center communicate through Ethernet;
the central server or the field center realizes the intelligent construction site operation and maintenance control positioning method according to any one of claims 1-7, and the central server or the field center is used for realizing that the calculated CPU core number is one larger than the value of N;
a field base station realizes the field positioning communication base station function of the intelligent construction site operation and maintenance management and control positioning method according to any one of claims 1-7;
the field node realizes the field positioning communication node function of the intelligent construction site operation and maintenance management positioning method according to any one of claims 1-7.
10. The intelligent construction site operation and maintenance management and positioning system according to claim 9, wherein the field base station is internally provided with a LoRa positioning gateway module for realizing a field positioning communication base station function, and the field node is internally provided with a LoRa positioning chip for realizing a field positioning communication node function.
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