CN115361661B - Visual industrial management system based on GIS and scene positioning - Google Patents

Visual industrial management system based on GIS and scene positioning Download PDF

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CN115361661B
CN115361661B CN202211283948.3A CN202211283948A CN115361661B CN 115361661 B CN115361661 B CN 115361661B CN 202211283948 A CN202211283948 A CN 202211283948A CN 115361661 B CN115361661 B CN 115361661B
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positioning
indoor
target
module
tag
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CN115361661A (en
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江大白
胡增
杨坤龙
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China Applied Technology Co Ltd
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China Applied Technology Co Ltd
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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
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0278—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves involving statistical or probabilistic considerations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • 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
    • G16Y40/60—Positioning; Navigation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • 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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Abstract

The invention discloses a visual industrial management system based on GIS and scene positioning, which comprises: the system comprises a comprehensive supervision center, an integrated map unit, a radio frequency transfer base station, an indoor positioning unit, a positioning encryption terminal, a workpiece positioning unit, a cloud server and a standard positioning template unit; the comprehensive supervision center is used for realizing the unified management and configuration of the industrial management system; the integrated map unit is used for providing and displaying an industrial scene GIS integrated map; the radio frequency transfer base station is used for acquiring an output signal of a target to be positioned in an outdoor environment; and the indoor positioning unit is used for acquiring an output signal of a target to be positioned in the indoor environment. According to the invention, a multi-scene positioning tracking and industrial management system is constructed based on an industrial production environment and an Internet of things technology, so that the safe and efficient management of industrial production can be realized aiming at different industrial scenes, and the production efficiency and safety are improved.

Description

Visual industrial management system based on GIS and scene positioning
Technical Field
The invention relates to the technical field of industrial management, in particular to a visual industrial management system based on GIS and scene positioning.
Background
At present, the improvement of the traditional industry and the development of intelligent manufacturing by the transformation of the information communication technology become important development trends of the manufacturing industry, bring deep influence on the development and the division of the industry pattern, and promote the formation of new production modes, industrial states and business modes. The industrial upgrading of the process industry requires not only new equipment, new processes and new catalysts, but also a new generation of information communication technology.
Industrial management refers to the role of decision making, planning, organizing, commanding, regulating, and supervising the economic activities of industrial production and reproduction processes. It includes the management of the whole industry, and also includes the management of a certain department and a certain industry in the industry. The fundamental goals of industrial management systems are: the safety production efficiency of the industrial industry is improved by an informatization means, and the visualization, quantification and prevention of the industrial safety production management are realized by a scientific and technological means through the concept of 'standardized promotion management and informatization reduction and efficiency improvement'.
In the current industrial production workshop, an internet of things indoor positioning technology is generally utilized to position an object or a processing workpiece in the processing process, so as to obtain the real-time position or processing data and detection data of the object or the processing workpiece in different processing procedures, thereby improving the production efficiency and facilitating the production management. However, for the whole industrial industry, the industrial management is not limited to positioning the processing equipment and the workpiece in the workshop, and in the whole industrial scene, the participating personnel, processing facilities and production equipment also need to be uniformly managed and dispatched with high precision and high efficiency to improve the production efficiency and guarantee the production safety.
In a traditional industrial scene, a GPS technology is often adopted for positioning personnel or equipment to obtain specific positions of the personnel or equipment, but the industrial scene is rich and diverse and mostly exists in an indoor environment, so that the positioning precision of a GPS cannot meet the positioning requirement of high precision. In addition, for an industrial management system, a large number of targets need to be positioned and monitored, so that how to improve the positioning and monitoring precision, ensure the safety of industrial data or personnel information, enhance the management efficiency and effect is still a problem to be solved urgently.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a visual industrial management system based on GIS and scene positioning, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme: a visual industrial management system based on GIS and scene positioning comprises: the system comprises a comprehensive supervision center, an integrated map unit, a radio frequency transfer base station, an indoor positioning unit, a positioning encryption terminal, a workpiece positioning unit, a cloud server and a standard positioning template unit;
the comprehensive supervision center is used for realizing the unified management and configuration of the industrial management system;
the integrated map unit is used for providing and displaying an industrial scene GIS integrated map;
the radio frequency transfer base station is used for acquiring an output signal of a target to be positioned in an outdoor environment;
the indoor positioning unit is used for acquiring an output signal of a target to be positioned in an indoor environment;
the positioning encryption terminal is used for providing a positioning label and encryption information for the target to be positioned;
the workpiece positioning unit is used for positioning a processing workpiece in an industrial scene; the cloud server is used for storing the data of the target to be positioned and updating and maintaining the data;
and the standard positioning template unit is used for providing a standard positioning module of a specific scene.
Furthermore, the integrated map unit comprises a full scene map module, an indoor map module, a WCF receiving module, a WCF technical interface and a data transmission module;
the full scene map module is used for displaying outdoor panorama and label signals and position distribution of a plurality of targets to be positioned in an industrial scene;
the indoor map module is used for displaying label signals and position distribution of each indoor environment and a plurality of targets to be positioned in an industrial scene;
the WCF receiving module is used for establishing WCF service with a distributed cloud server and acquiring data information of a target to be positioned;
the WCF technical interface is used for actively updating and upgrading the model of the integrated map unit based on the GIS system;
and the data transmission module is used for integrating and transmitting the data of the target to be positioned to the comprehensive supervision center.
Further, the radio frequency transfer base station comprises an outdoor reader-writer, a GPRS receiving module, an outdoor communication module, a temporary storage database and an area monitoring module;
the outdoor reader-writer is used for reading a tag signal of a target to be positioned in an indoor environment and decrypting the tag signal;
the GPRS receiving module is used for receiving a position signal transmitted by the positioning encryption terminal;
the outdoor communication module is used for establishing communication connection with the cloud server;
the temporary storage database is used for storing output signals of the target to be positioned acquired within a certain time range;
the area monitoring module is used for inputting and dividing a monitoring area range and carrying out position monitoring on the target to be positioned in the area range.
Furthermore, the indoor positioning unit comprises an indoor reader-writer, a reference electronic tag, a virtual reference tag, a boundary reference tag and an indoor communication module;
the indoor reader-writer is used for reading a tag signal of a target to be positioned in an indoor environment and positioning and decrypting the tag signal;
the reference electronic tags are used for assisting in positioning and are uniformly distributed and installed in an indoor environment;
the virtual reference tag is used for providing auxiliary virtual reference position coordinates by matching with the reference electronic tag;
the boundary reference tag is used for improving the positioning precision of the boundary of the reference electronic tag;
the indoor communication module is used for uploading an output signal of the target to be positioned to the cloud server.
Furthermore, the positioning encryption terminal comprises a GPS module, a radio frequency electronic tag and a GPRS transmitting module;
the GPS module is used for acquiring a GPS signal of a target to be positioned in an outdoor environment;
the radio frequency electronic tag is used for storing and transmitting a tag signal encrypted by a target to be positioned;
and the GPRS transmitting module is used for converting the GPS signal into a position signal and transmitting the position signal to the radio frequency transfer base station.
Further, the indoor positioning unit acquiring an output signal of a target to be positioned in the indoor environment comprises the following steps:
reading signals by an indoor reader-writer according to preset interval time;
when an object to be positioned exists in the indoor environment, acquiring a position signal of the object to be positioned by using a virtual reference positioning mode;
the indoor reader-writer obtains the label signal after the positioning target is encrypted, and provides a discrete chaotic sequence for decryption;
and binding the position signal of the target to be positioned with the decrypted label signal, and uploading the position signal to a cloud server through an indoor communication module.
Further, the method for acquiring the position signal of the target to be positioned by using the virtual reference positioning method comprises the following steps:
acquiring position coordinates of a reference electronic tag and a boundary reference tag by using an indoor reader-writer;
the indoor reader-writer obtains RSS values of a reference electronic tag and a radio frequency electronic tag of a target to be positioned, and the RSS values are measured for many times to obtain an average value;
solving the RSS value of the boundary reference label by using a linear regression equation;
acquiring a distribution rule of virtual reference tags, and dividing an area where the reference electronic tags are located into NxN grids;
calculating an RSS value of the virtual reference tag by using a linear interpolation method;
acquiring a proximity map constructed by taking each indoor reader-writer as a center, selecting a reference electronic tag overlapped with the proximity map, and calculating the weight of the reference electronic tag, wherein the weight is as follows:
Figure 886585DEST_PATH_IMAGE001
and according to the weighting parameters and the position coordinates of the reference electronic tag, solving a position signal of the radio frequency electronic tag, which is as follows:
Figure 6988DEST_PATH_IMAGE002
in the formula (I), the compound is shown in the specification,
Figure 911359DEST_PATH_IMAGE003
representing the position coordinates of the mobile electronic tag to be positioned;
Figure 775410DEST_PATH_IMAGE004
representing the sitting coordinates of the superimposed reference electronic tags;
Figure 704681DEST_PATH_IMAGE005
representing the weight of the selected reference electronic tag;
Figure 651777DEST_PATH_IMAGE006
denotes the firsti1 st weight of the selected reference electronic tag;
Figure 387652DEST_PATH_IMAGE007
is shown asiThe 2 nd weight of the selected reference electronic tag;
Figure 665181DEST_PATH_IMAGE008
indicating the second in the overlapping partiReader-writer with reference electronic labeljAn RSS value of (d);
Figure 130797DEST_PATH_IMAGE009
indicating that the mobile electronic tag is atjAn RSS value on the individual reader;
Figure 858582DEST_PATH_IMAGE010
indicating the number of readers;
Figure 691540DEST_PATH_IMAGE011
indicating the number of reference electronic tags;
Figure 428551DEST_PATH_IMAGE012
is shown asiThe number of eight reference electronic tags marked as 1 around each selected reference electronic tag;
Figure 545412DEST_PATH_IMAGE013
the sum of the number marked as 1 around all the selected reference electronic tags is represented;
Figure 178519DEST_PATH_IMAGE014
is shown asiA reference electronic tag;
Figure 764352DEST_PATH_IMAGE015
is shown asjA reader/writer;
Figure 773896DEST_PATH_IMAGE016
is shown ascAnd the reference electronic tags marked with 1 surround the selected reference electronic tags.
Furthermore, the radio frequency electronic tag adopts a chaotic encryption method, wherein a discrete chaotic sequence corresponding to the identity data and the tag displacement is stored in the radio frequency tag for encryption, and the chaotic encryption method adopts a logistic mapping algorithm.
Further, the cloud server comprises a distributed database, a database access module, a WCF transmitting module and a communication module;
the distributed database is used for performing distributed storage on data transmitted by the plurality of radio frequency transit base stations and the indoor positioning units;
the database access module is used for providing the access of the integrated map unit to the distributed database;
the WCF transmitting module is used for providing WCF service, extracting data stored in the distributed database and sending the data to the integrated map unit;
the communication module is used for establishing communication connection with the radio frequency transfer base station and the indoor positioning unit.
Further, the step of realizing communication connection between the integrated map unit and the cloud server comprises the following steps:
the method comprises the steps that an integrated map unit and a cloud server establish WCF service connection;
the database access module sends an access request to a distributed database;
the WCF transmitting module extracts and stores signal data of each target to be positioned from each distribution node and sends the signal data to the WCF receiving module;
the WCF receiving module synchronizes the received data to the full scene map module and the indoor map module.
The invention has the beneficial effects that:
1. the multi-scene positioning tracking and industrial management system is constructed based on the industrial production environment and the internet of things technology, so that personnel, equipment and object materials can be positioned comprehensively and accurately under different industrial scenes, the safe and efficient management of industrial production is realized, the production efficiency and the safety are improved, meanwhile, the visual integrated map display system is constructed based on the GIS technology, targets to be positioned under the full industrial scenes are integrated into a scene map, a visual and clear management system is formed, and the industrial management efficiency is further improved.
2. By utilizing the encryption radio frequency identification technology, a plurality of virtual reference electronic tags, virtual reference tags and boundary reference tags are added in an indoor environment, so that the identification precision of the target to be positioned can be greatly improved under the condition of not obviously increasing the cost, and the method is suitable for large-scale indoor industrial scenes and ensures the positioning precision of personnel, equipment or object materials; in an outdoor environment, the radio frequency identification technology synchronously and safely inputs identity information and position information of a target to be positioned into the cloud server, and meanwhile, a discrete chaotic encryption algorithm is used for encrypting radio frequency signals, so that the information safety in the signal transmission process is effectively improved, and the safety and the stability of an industrial system are ensured.
3. The WCF technology is introduced, the running speed, stability and openness between systems such as an integrated map unit and a remote server can be effectively improved, and an external and cross-platform input mode can be utilized to update and upgrade the current integrated map system or related components or fuse related data by reserving a WCF technology interface, so that the safety, reliability and operability of an industrial management system are improved.
4. Through the standard positioning template unit, the standard positioning template of a specific scene is preset in the standard positioning template unit, so that whether a target appears in a standard positioning template in a current scene or not is judged, and whether potential safety hazards exist or not is determined by marking a safe position area, and therefore safety early warning is sent out, and safety early warning under different scenes is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a system block diagram of a visual industrial management system based on GIS and scene localization according to an embodiment of the present invention.
In the figure:
1. a comprehensive supervision center; 2. an integrated map unit; 201. a full scene map module; 202. an indoor map module; 203. a WCF receiving module; 204. a WCF technology interface; 205. a data transfer module; 3. a radio frequency transfer base station; 301. an outdoor reader-writer; 302. a GPRS receiving module; 303. an outdoor communication module; 304. temporarily storing a database; 305. a region monitoring module; 4. an indoor positioning unit; 401. an indoor reader/writer; 402. a reference electronic tag; 403. a virtual reference tag; 404. a boundary reference label; 405. an indoor communication module; 5. positioning an encryption terminal; 501. a GPS module; 502. a radio frequency electronic tag; 503. a GPRS transmitting module; 6. a workpiece positioning unit; 7. a cloud server; 701. a distributed database; 702. a database access module; 703. a WCF transmitting module; 704. a communication module; 8. and standard positioning template units.
Detailed Description
According to an embodiment of the present invention, a visual industrial management system based on GIS and scene positioning is provided, as shown in fig. 1, the system includes: the system comprises a comprehensive supervision center 1, an integrated map unit 2, a radio frequency transfer base station 3, an indoor positioning unit 4, a positioning encryption terminal 5, a workpiece positioning unit 6, a cloud server 7 and a standard positioning template unit 8;
the comprehensive supervision center 1 is used for realizing unified management and configuration of an industrial management system;
the integrated map unit 2 is used for providing and displaying an industrial scene GIS integrated map;
the integrated map unit 2 comprises a full scene map module 201, an indoor map module 202, a WCF receiving module 203, a WCF technical interface 204 and a data transmission module 205;
the whole scene map module 201 is used for displaying outdoor panorama and label signals and position distribution of a plurality of targets to be positioned in an industrial scene;
the indoor map module 202 is configured to display tag signals and position distributions of each indoor environment and a plurality of targets to be positioned in an industrial scene;
the WCF receiving module 203 is configured to establish a WCF service with the distributed cloud server 7 and acquire data information of a target to be positioned;
the WCF technology interface 204 is used for actively performing model update and upgrade of the integrated map unit 1 based on the GIS system;
a large amount of industrial information, equipment information and the like are stored in an industrial management system, safety production of enterprises is related, and safety of information collection of a visual GIS system can be met by using a WCF technology. The WCF security agents are respectively deployed at the cloud server 7 and the client of the management system in a WCF service manner, and are mainly responsible for intercepting, securely processing and forwarding local service requests and response messages. In addition, the WCF has the functions of safety, credibility, interoperation, cross-platform communication and the like, in the industrial management system, an operator only needs to quote data of the server side, namely the industrial management system can be visualized to acquire data from the server sides of industrial construction, industrial planning and the like through an interface of the WCF technology, the data are analyzed and then distributed to the GIS system, and the upgrading or updating of the system can be directly formed.
The data transmission module 205 is configured to integrate and transmit data of an object to be positioned to the comprehensive supervision center 1.
The radio frequency relay base station 3 is used for acquiring an output signal of a target to be positioned in an outdoor environment;
the radio frequency relay base station 3 includes an outdoor reader-writer 301, a GPRS receiving module 302, an outdoor communication module 303, a temporary storage database 304, and an area monitoring module 305;
the outdoor reader-writer 301 is used for reading a tag signal of a target to be positioned in an indoor environment and decrypting the tag signal;
the GPRS receiving module 302 is configured to receive a position signal transmitted by the positioning encryption terminal 5;
the outdoor communication module 303 is configured to establish a communication connection with the cloud server 7;
the temporary storage database 304 is used for storing output signals of a target to be positioned acquired within a certain time range;
the area monitoring module 305 is configured to input and divide a monitoring area range, and perform position monitoring on an object to be positioned within the area range.
In addition, the step of acquiring the output signal of the target to be positioned in the outdoor environment by the radio frequency relay base station 3 includes the following steps:
s301, reading signals by the outdoor reader-writer 301 and the GPRS receiving module 302 according to preset interval time;
s302, when reading that the target to be positioned exists in the outdoor environment, establishing communication connection between the GPRS receiving module 302 and a GPRS transmitting module 503 in the positioning encryption terminal 5 and acquiring a position signal;
s303, the outdoor reader-writer 301 acquires the encrypted tag signal of the positioning target and provides a discrete chaotic sequence for decryption;
s304, binding the position signal of the target to be positioned and the decrypted label signal and storing the bound position signal and the decrypted label signal into a temporary storage database 304;
s305, uploading the position signal of the target to be positioned to the cloud server 7 through the outdoor communication module 303 according to a preset interval.
The indoor positioning unit 4 is used for acquiring an output signal of a target to be positioned in an indoor environment;
the indoor positioning unit 4 comprises an indoor reader-writer 401, a reference electronic tag 402, a virtual reference tag 403, a boundary reference tag 404 and an indoor communication module 405;
the indoor reader-writer 401 is configured to read a tag signal of a target to be located in an indoor environment, and locate and decrypt the tag signal;
the reference electronic tags 402 are used for assisting positioning and are uniformly distributed and installed in an indoor environment;
the virtual reference tag 403 is used for providing auxiliary virtual reference position coordinates in cooperation with the reference electronic tag;
the boundary reference tag 404 is used for improving the positioning accuracy at the boundary of the reference electronic tag;
the indoor communication module 405 is configured to upload an output signal of a target to be positioned to the cloud server 7.
The positioning encryption terminal 5 is used for providing a positioning label and encryption information for a target to be positioned;
the positioning encryption terminal 5 comprises a GPS module 501, a radio frequency electronic tag 502 and a GPRS transmitting module 503;
the GPS module 501 is configured to acquire a GPS signal of an object to be located in an outdoor environment;
the radio frequency electronic tag 502 is used for storing and transmitting a tag signal encrypted by a target to be positioned;
in addition, the radio frequency electronic tag 502 employs a chaotic encryption method, wherein a discrete chaotic sequence corresponding to the tag displacement and the identity data stored in the radio frequency tag is encrypted, and the chaotic encryption method employs a logistic mapping algorithm. Because the chaotic sequence has the statistical characteristic of approaching Gaussian white noise, the ciphertext subjected to chaotic encryption can be almost equal to a noise sequence. Under the condition of not knowing the structure of the radio frequency reader and the information encryption mechanism, anyone can not restore the original information even if illegally obtaining the data in the electronic tag.
The GPRS transmitting module 503 is configured to convert the GPS signal into a location signal and transmit the location signal to the radio frequency relay base station 3.
The indoor positioning unit 4 obtains an output signal of a target to be positioned in an indoor environment, and comprises the following steps:
s401, the indoor reader-writer 401 reads signals according to preset interval time;
s402, when the target to be positioned exists in the indoor environment is read, the position signal of the target to be positioned is obtained in a virtual reference positioning mode, and the method comprises the following steps:
s4021, acquiring the position coordinates of the reference electronic tag 402 and the boundary reference tag 404 by using the indoor reader/writer 401;
s4022, the indoor reader/writer 401 obtains RSS values of the reference electronic tag 402 and the radio frequency electronic tag 502 of the object to be located, and measures the RSS values for multiple times to obtain an average value;
s4023, solving the RSS value of the boundary reference label 404 by using a linear regression equation;
s4024, acquiring a distribution rule of the virtual reference tag 403, and dividing an area where the reference electronic tag 402 is located into N × N grids;
s4025, calculating the RSS value of the virtual reference label 403 by using a linear interpolation method;
s4026, obtaining an adjacent map constructed with each indoor reader/writer 401 as a center, selecting the overlapped reference electronic tags 402, and calculating a weight value thereof, as follows:
Figure 745263DEST_PATH_IMAGE001
s4027, obtaining the position signal of the rf tag 502 according to the weighting parameter and the position coordinate of the reference tag 401, as follows:
Figure 814850DEST_PATH_IMAGE002
in the formula (I), the compound is shown in the specification,
Figure 822733DEST_PATH_IMAGE003
representing the position coordinates of the mobile electronic tag to be positioned;
Figure 760602DEST_PATH_IMAGE004
representing the sitting coordinates of the superimposed reference electronic tags;
Figure 993000DEST_PATH_IMAGE005
representing the weight of the selected reference electronic tag;
Figure 843276DEST_PATH_IMAGE006
is shown asi1 st weight of the selected reference electronic tag;
Figure 528335DEST_PATH_IMAGE007
is shown asiThe 2 nd weight of the selected reference electronic tag;
Figure 4316DEST_PATH_IMAGE008
indicating the second in the overlapping partiReader-writer with reference electronic labeljAn RSS value of (d);
Figure 825641DEST_PATH_IMAGE009
indicating that the mobile electronic tag is atjRead one by oneAn RSS value on the writer;
Figure 846818DEST_PATH_IMAGE010
indicating the number of readers;
Figure 753594DEST_PATH_IMAGE011
indicating the number of reference electronic tags;
Figure 33266DEST_PATH_IMAGE012
is shown asiThe number of eight reference electronic tags marked as 1 around the selected reference electronic tag;
Figure 709098DEST_PATH_IMAGE013
the sum of the number marked as 1 around all the selected reference electronic tags is represented;
Figure 370017DEST_PATH_IMAGE014
is shown asiA reference electronic tag;
Figure 888723DEST_PATH_IMAGE015
is shown asjA reader/writer;
Figure 581873DEST_PATH_IMAGE016
is shown ascAnd the reference electronic tags marked with 1 surround the selected reference electronic tags.
In addition, the proximity map is formed by comparing the RSS value of each reference tag (including the reference electronic tag 402, the virtual reference tag 403, and the boundary reference tag 404) read by the indoor reader/writer 401 with the RSS value of the radio frequency electronic tag 502 to be detected, selecting a threshold value, and recording the position of the reference tag smaller than the threshold value as 1 and the positions of the other tags as 0. If N readers exist in the indoor positioning environment, N adjacent maps are found out, the overlapped parts of the N adjacent maps are used as reference labels for finally determining the position coordinates of the point to be detected, and finally the overlapped reference labels are reasonably distributed with weights to calculate the coordinate position.
S403, the indoor reader-writer 401 acquires the encrypted tag signal of the positioning target and provides a discrete chaotic sequence for decryption;
s404, binding the position signal of the target to be positioned with the decrypted tag signal, and uploading the signal to the cloud server 7 through the indoor communication module 405.
The workpiece positioning unit 6 is used for positioning a processing workpiece in an industrial scene;
in actual operation, the workpiece positioning unit 6 adopts a UVW workpiece alignment platform, a controller and a visual inspection camera, and is used for aligning and calibrating a workpiece to be processed with high precision, and comprises the following steps:
s601, combining the UVW workpiece alignment platform with the industrial production equipment to construct a unified coordinate system;
s602, extracting image coordinates of a workpiece to be detected through the visual inspection camera;
s603, a machine is utilized to learn a calibration result and convert the calibration result into world coordinates;
and S604, calculating a control quantity through a kinematic analysis inverse solution, and correcting the position of the workpiece to be detected.
The positioning system can meet the positioning requirement of workpiece processing in most scenes, and is in two different positioning systems with indoor positioning and outdoor positioning, namely two applicable environments of industrial scenes and workpiece processing.
And the cloud server 7 is used for storing the data of the target to be positioned and updating and maintaining the data.
The cloud server 7 includes a distributed database 701, a database access module 702, a WCF transmitting module 703 and a communication module 704;
the distributed database 701 is configured to perform distributed storage on data transmitted by the plurality of radio frequency relay base stations 3 and the indoor positioning unit 4;
the database access module 702 is configured to provide access to the distributed database 701 by the integrated map unit 2;
the WCF transmitting module 703 is configured to provide WCF services, extract data stored in the distributed database 701, and send the data to the integrated map unit 2;
the communication module 704 is configured to establish a communication connection with the radio frequency relay base station 3 and the indoor positioning unit 4.
In addition, the implementation of the communication connection between the integrated map unit 2 and the cloud server 7 includes the following steps:
s701, the integrated map unit 2 and the cloud server 7 establish WCF service connection;
s702, the database access module 702 sends an access request to the distributed database 701;
s703, the WCF transmitting module 703 extracts and stores signal data of each target to be positioned from each distribution node, and sends the signal data to the WCF receiving module 203;
s704, the WCF receiving module 203 synchronizes the received data to the whole scene map module 201 and the indoor map module 202.
The standard positioning template unit 8 is used for providing a standard positioning module of a specific scene;
the standard positioning template unit 8 presets a plurality of standard positioning templates of specific scenes, which include positioning target ranges of indoor environments, positioning target ranges of outdoor environments and positioning target ranges of processing workpieces, and then judges whether a target appears in a position area which is not marked with safety in the standard positioning template in the current scene or not by comparing high-precision positioning of personnel, equipment and object materials in each scene with standard positioning of the specific scenes, so as to determine whether potential safety hazards exist or not, and send out safety early warning. In summary, by means of the technical scheme of the invention, a multi-scene positioning tracking and industrial management system is constructed based on an industrial production environment and an internet of things technology, so that personnel, equipment and object materials can be positioned comprehensively and accurately under different industrial scenes, the safe and efficient management of the industrial production is realized, the production efficiency and the safety are improved, meanwhile, a visual integrated map display system is constructed based on a GIS technology, objects to be positioned under all industrial scenes are integrated into a scene map, a visual and clear management system is formed, and the industrial management efficiency is further improved. By utilizing the encryption radio frequency identification technology, a plurality of virtual reference electronic tags, virtual reference tags and boundary reference tags are added in an indoor environment, so that the identification precision of the target to be positioned can be greatly improved under the condition of not obviously increasing the cost, and the method is suitable for large-scale indoor industrial scenes and ensures the positioning precision of personnel, equipment or object materials; in an outdoor environment, the radio frequency identification technology synchronously and safely inputs identity information and position information of a target to be positioned into the cloud server, and meanwhile, a discrete chaotic encryption algorithm is used for encrypting radio frequency signals, so that the information safety in the signal transmission process is effectively improved, and the safety and the stability of an industrial system are ensured. The WCF technology is introduced, the running speed, the stability and the openness between systems such as an integrated map unit and a remote server can be effectively improved, and the existing integrated map system or related components can be updated and upgraded or related data can be fused by using an external and cross-platform input mode through a mode of reserving an interface of the WCF technology, so that the safety, the reliability and the operability of an industrial management system are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (3)

1. A visual industrial management system based on GIS and scene positioning is characterized in that the system comprises: the system comprises a comprehensive supervision center, an integrated map unit, a radio frequency transfer base station, an indoor positioning unit, a positioning encryption terminal, a workpiece positioning unit, a cloud server and a standard positioning template unit;
the comprehensive supervision center is used for realizing the unified management and configuration of the industrial management system;
the integrated map unit is used for providing and displaying an industrial scene GIS integrated map;
the radio frequency transfer base station is used for acquiring an output signal of a target to be positioned in an outdoor environment;
the indoor positioning unit is used for acquiring an output signal of a target to be positioned in an indoor environment;
the positioning encryption terminal is used for providing a positioning label and encryption information for the target to be positioned;
the workpiece positioning unit is used for positioning a processing workpiece in an industrial scene;
the cloud server is used for storing data of the target to be positioned and updating and maintaining the data;
the standard positioning template unit is preset with a standard positioning template in a specific scene and comprises a positioning target range of an indoor environment, a positioning target range of an outdoor environment and a positioning target range of a processing workpiece, and whether a potential safety hazard exists or not is determined by comparing high-precision positioning of personnel, equipment and object materials in each scene with standard positioning of the specific scene so as to judge whether a target appears in a position area which is not marked with safety in the standard positioning template in the current scene or not, and safety early warning is sent out;
wherein the indoor positioning unit acquiring an output signal of a target to be positioned in an indoor environment comprises the following steps:
reading signals by an indoor reader-writer according to preset interval time;
when an object to be positioned exists in the indoor environment, acquiring a position signal of the object to be positioned by using a virtual reference positioning mode;
the indoor reader-writer obtains the label signal after the positioning target is encrypted, and provides a discrete chaotic sequence for decryption;
binding the position signal of the target to be positioned with the decrypted label signal, and uploading the position signal to a cloud server through an indoor communication module;
the method for acquiring the position signal of the target to be positioned by using the virtual reference positioning mode comprises the following steps:
acquiring position coordinates of a reference electronic tag and a boundary reference tag by using the indoor reader-writer;
the indoor reader-writer obtains RSS values of the reference electronic tag and the radio frequency electronic tag of the target to be positioned, and the RSS values are measured for many times to obtain an average value;
solving the RSS value of the boundary reference label by using a linear regression equation;
acquiring a distribution rule of virtual reference tags, and dividing an area where the reference electronic tags are located into NxN grids;
calculating the RSS value of the virtual reference tag by using a linear interpolation method;
obtaining a proximity map constructed by taking each indoor reader-writer as a center, selecting the overlapped reference electronic tags, and calculating the weight of the reference electronic tags, wherein the weight is as follows:
Figure 531735DEST_PATH_IMAGE001
according to the weighting parameters and the position coordinates of the reference electronic tag, the position signals of the radio frequency electronic tag are obtained, and the following formula is shown:
Figure 980034DEST_PATH_IMAGE002
in the formula (I), the compound is shown in the specification,
Figure 166295DEST_PATH_IMAGE003
representing the position coordinates of the mobile electronic tag to be positioned;
Figure 92663DEST_PATH_IMAGE004
representing the sitting coordinates of the overlapped reference electronic tags;
Figure 562828DEST_PATH_IMAGE005
representing the weight of the selected reference electronic tag;
Figure 916448DEST_PATH_IMAGE006
denotes the firsti1 st weight of the selected reference electronic tag;
Figure 590006DEST_PATH_IMAGE007
denotes the firstiThe 2 nd weight of the selected reference electronic tag;
Figure 320065DEST_PATH_IMAGE008
indicating the second in the overlapping partiReader-writer with reference electronic labeljAn RSS value of (d);
Figure 880622DEST_PATH_IMAGE009
indicating that the mobile electronic tag is atjAn RSS value on the individual reader;
Figure 405144DEST_PATH_IMAGE010
indicating the number of readers;
Figure 565998DEST_PATH_IMAGE011
indicating the number of reference electronic tags;
Figure 834168DEST_PATH_IMAGE012
denotes the firstiThe number of eight reference electronic tags marked as 1 around the selected reference electronic tag;
Figure 623133DEST_PATH_IMAGE013
the sum of the number marked as 1 around all the selected reference electronic tags is represented;
Figure 708769DEST_PATH_IMAGE014
is shown asiA reference electronic tag;
Figure 481553DEST_PATH_IMAGE015
denotes the firstjA reader/writer;
Figure 163201DEST_PATH_IMAGE016
is shown ascThe integrated map unit comprises a full scene map module, an indoor map module, a WCF receiving module, a WCF technical interface and a data transmission module;
the full scene map module is used for displaying outdoor panorama and label signals and position distribution of a plurality of targets to be positioned in an industrial scene;
the indoor map module is used for displaying label signals and position distribution of each indoor environment and a plurality of targets to be positioned in an industrial scene;
the WCF receiving module is used for establishing WCF service with the distributed cloud server and acquiring data information of a target to be positioned;
the WCF technical interface is used for actively updating and upgrading the model of the integrated map unit based on the GIS system;
the data transmission module is used for integrating and transmitting the data of the target to be positioned to the comprehensive supervision center,
the radio frequency transfer base station comprises an outdoor reader-writer, a GPRS receiving module, an outdoor communication module, a temporary storage database and an area monitoring module;
the outdoor reader-writer is used for reading a tag signal of a target to be positioned in an indoor environment and decrypting the tag signal;
the GPRS receiving module is used for receiving a position signal transmitted by the positioning encryption terminal;
the outdoor communication module is used for establishing communication connection with the cloud server;
the temporary storage database is used for storing output signals of the target to be positioned, which are acquired within a certain time range;
the area monitoring module is used for inputting and dividing a monitoring area range, monitoring the position of a target to be positioned in the area range,
the indoor positioning unit comprises an indoor reader-writer, a reference electronic tag, a virtual reference tag, a boundary reference tag and an indoor communication module;
the indoor reader-writer is used for reading a tag signal of a target to be positioned in an indoor environment and positioning and decrypting the tag signal;
the reference electronic tags are used for assisting positioning and are uniformly distributed and installed in an indoor environment;
the virtual reference tag is used for providing auxiliary virtual reference position coordinates in cooperation with the reference electronic tag;
the boundary reference tag is used for improving the positioning precision of the boundary of the reference electronic tag;
the indoor communication module is used for uploading an output signal of a target to be positioned to the cloud server; the radio frequency electronic tag adopts a chaotic encryption method, wherein a discrete chaotic sequence corresponding to identity data and tag displacement is stored in the radio frequency electronic tag for encryption, and the chaotic encryption method adopts a logic mapping algorithm;
the cloud server comprises a distributed database, a database access module, a WCF transmitting module and a communication module;
the distributed database is used for performing distributed storage on data transmitted by the plurality of radio frequency transit base stations and the indoor positioning units;
the database access module is used for providing access of the integrated map unit to the distributed database;
the WCF transmitting module is used for providing WCF service, extracting data stored in the distributed database and sending the data to the integrated map unit;
the communication module is used for establishing communication connection with the radio frequency transfer base station and the indoor positioning unit.
2. The GIS and scene positioning-based visual industrial management system according to claim 1, wherein the positioning encryption terminal comprises a GPS module, a radio frequency electronic tag and a GPRS transmitting module;
the GPS module is used for acquiring a GPS signal of a target to be positioned in an outdoor environment;
the radio frequency electronic tag is used for storing and transmitting a tag signal encrypted by a target to be positioned;
and the GPRS transmitting module is used for converting the GPS signal into a position signal and transmitting the position signal to the radio frequency transfer base station.
3. The GIS and scene positioning-based visual industrial management system according to claim 1, wherein the communication connection between the integrated map unit and the cloud server comprises the following steps:
the integrated map unit and the cloud server establish WCF service connection;
the database access module sends an access request to the distributed database;
the WCF transmitting module extracts and stores signal data of each target to be positioned from each distribution node and sends the signal data to the WCF receiving module;
the WCF receiving module synchronizes the received data to the whole scene map module and the indoor map module.
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