CN114493084A - Park emergency linkage method and system based on BIM + GIS - Google Patents
Park emergency linkage method and system based on BIM + GIS Download PDFInfo
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Abstract
The application discloses a park emergency linkage method based on BIM + GIS, which comprises the following steps: 1) acquiring geographical position information of a plurality of buildings through a Beidou and GPS positioning system, and storing the geographical position information of all the buildings in a GIS system; 2) selecting one building, obtaining the building structure of the building, and establishing a BIM building information model through modeling software; carrying out format conversion on the BIM and transmitting and storing the BIM after format conversion in a GIS system; 3) arranging a plurality of positioning base stations in each floor of the building selected in the step 2) according to requirements, and transmitting and storing floor information and geographical position information of the positioning base stations into a GIS system. According to the invention, through the combination of geographic information, BIM building information and UWB positioning technology, resource emergency information sharing and emergency linkage resource scheduling of a macroscopic range and a microscopic view are realized.
Description
Technical Field
The invention relates to a park emergency linkage method and a park emergency linkage system based on BIM + GIS, belonging to the field of communication.
Background
The intelligent park is planned and constructed, has complete water supply, power supply, gas supply, communication, roads, storage and other supporting facilities and reasonable layout, can meet standard buildings or building groups required by production and scientific experiments in a certain specific industry, and is systematically managed in order to further integrate park software hardware resources, form an intelligent park effect and achieve the strategic goals of intelligent park management and intelligent service along with continuous development and perfection of the intelligent park.
In the construction process of garden, can construct the function operation requirement of different buildings in order to satisfy the garden according to function classification, personnel also can distribute in the garden carry out daily work in each building.
When disasters occur in the park, the distribution application of emergency materials and the distribution application of emergency personnel need more specific information to be accurately put in according to needs, and the rescue is accurate and effective. For example, emergency materials can be rapidly delivered to a disaster occurrence area or an effective rescue scheme for rapidly taking out personnel in the disaster occurrence area according to the shortest route to the disaster occurrence area; or according to the personnel distribution condition of each subarea in the disaster occurrence area and the personnel density of each subarea, how to distribute materials and how to rapidly rescue each disaster-stricken person and how to rapidly eliminate the disaster can be accurately determined.
The existing intelligent system of the park can only roughly know how many resident persons and how many persons enter the park building, but has no effective way of knowing information such as specific distribution of the persons in the park building and the density of the persons in a specific area, so that the intelligent system of the park can not provide a constructive suggestion for distribution application of emergency materials and distribution application of emergency personnel when a disaster occurs.
Disclosure of Invention
The invention provides a BIM + GIS-based park emergency linkage method and a power generation system thereof, which realize command scheduling of internal and external emergency resources of a park through geographic information and realize resource emergency information sharing and linkage scheduling in a macroscopic range; BIM building information is adopted, and UWB positioning technology is combined to achieve emergency linkage resource scheduling of the micro-vision field.
The technical scheme adopted by the invention is that a park emergency linkage method based on BIM + GIS comprises the following steps:
1) acquiring geographical position information of a plurality of buildings through a Beidou and GPS positioning system, and storing the geographical position information of all the buildings in a GIS system;
2) selecting one building, obtaining the building structure of the building, and establishing a BIM building information model through modeling software; carrying out format conversion on the BIM and transmitting and storing the BIM after format conversion in a GIS system;
3) arranging a plurality of positioning base stations in each floor of the building selected in the step 2) according to requirements, and transmitting and storing floor information and geographical position information of the positioning base stations into a GIS (geographic information system);
4) repeating the processes of the step 2) and the step 3), and transmitting and storing the BIM building information models of all buildings, the floor information of the positioning base station and the geographic position information of the positioning base station into a GIS system;
5) distributing a positioning tag for each person entering the park, and correspondingly storing the serial number of the positioning tag and the information of the person;
6) when a disaster occurs in one of the buildings and emergency materials and emergency personnel arrive at the park, acquiring geographic position information of the disaster occurring building and a navigation route for arriving at the building, which are stored and transmitted by the GIS system, and arriving at the disaster occurring building according to the navigation route;
7) the positioning base station receives positioning signals sent by the positioning labels, transmits the positioning signals to the GIS system, and the GIS system determines the number of personnel in the building with the disaster and the positions of the areas where the personnel are located;
8) and releasing emergency materials and emergency personnel to the personnel in the disaster-occurring building at fixed points according to the information of the number of personnel in the disaster-occurring building, the information of the position of the area where the personnel are located and the BIM building information model of the building, which are obtained in the step 7).
In the optimized park emergency linkage method based on BIM + GIS, in step 3), a plurality of emergency video monitoring cameras are arranged in each floor of a building according to requirements, and floor information of the emergency video monitoring cameras and geographical position information of the emergency video monitoring cameras are transmitted and stored in a GIS system; the positioning tags are in the forms of work cards, safety helmets, wristwatches and the like, and periodically send uplink UWB positioning pulse signals to each positioning base station.
Preferably, the BIM + GIS-based park emergency linkage method further comprises the following steps in step 5): distributing a positioning tag for each person entering the park and collecting face information of the person, correspondingly storing the serial number of the positioning tag, the face information of the person and the person information, and forming a total personnel information database which is stored in a GIS system.
Preferably, in the BIM + GIS-based park emergency linkage method, in step 8), a positioning label is distributed to each emergency material and each emergency personnel, the real-time position of each emergency material and each emergency personnel in the emergency process is determined through a positioning base station, and the disaster relief in-place condition of the emergency material and the emergency personnel is determined.
Optimally, in the park emergency linkage method based on BIM + GIS, in the step 3), entrance and exit monitoring cameras are arranged at the entrance and exit of a building;
the step 5) also comprises the following steps: the method comprises the following steps that an in-out monitoring camera at an in-out port of a building collects face information of personnel who enter and exit the building and transmits the collected face information to a GIS system; the GIS system compares the facial information acquired by the in-and-out monitoring camera with facial information stored in a personnel information total database, finds out the serial number of the positioning label and the personnel information corresponding to the facial information acquired by the in-and-out monitoring camera from the personnel information total database, and collects the serial number and the personnel information to form a personnel information database in the building;
the process of step 7) specifically comprises:
7-1) the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the positioning signals sent by the positioning labels to a GIS system;
7-2) after the GIS system receives the personnel positioning position information transmitted by the positioning base station, comparing and searching the positioning labels obtained in the step 5) with the corresponding storage information of the personnel information according to the serial numbers of the positioning labels in the personnel positioning position information so as to obtain personnel information data I corresponding to all the received positioning labels; sending the first personnel information data and the corresponding personnel position information to a site disaster relief command;
7-3) comparing the personnel information data I obtained in the step 7-2) with a personnel information database in the building, finding out personnel in the building and forming personnel information data II, wherein the positioning base station does not receive the positioning information;
7-4) searching in a personnel information total database to find the facial information of the personnel contained in the personnel information data II;
7-5) identifying the face information found in the step 7-4) in the real-time videos of all the emergency video monitoring cameras; after a certain person in the person information data II is identified in the real-time video of one emergency video monitoring camera, the position information of the emergency video monitoring camera is sent to a site disaster relief command;
7-6) repeating the process of the step 7-5) until all the persons contained in the person information data II are found;
in the step 8), after receiving the first personnel information data and the corresponding personnel position information, performing the prior allocation and allocation work of emergency materials and emergency personnel; and after receiving the position information of the personnel contained in the personnel information data II in batches, carrying out later batch distribution and payment work on emergency materials and emergency personnel.
Preferably, the park emergency linkage method based on the BIM + GIS includes the following steps in step 7):
7-7) the mode that the positioning base station in the building receives the positioning signals sent by the positioning labels is real-time receiving, and the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the received positioning signals to the GIS system;
7-8) after the GIS system receives the position information of one positioning tag in one building in real time, according to the serial number of the positioning tag, finding out the personnel information corresponding to the positioning tag and the facial features of the personnel in a personnel information total database; correspondingly storing the personnel information corresponding to the positioning label, the facial features of the personnel and the real-time position information of the positioning label into a personnel position information base in the building;
7-9) repeating the process of the step 7-8) until the position information of all the positioning labels in the building in the step 7-8) is stored;
7-10) repeating the processes from the step 7-8) to the step 7-9) until the position information of the positioning tags in all buildings in the park is stored;
in step 8), when one of the buildings has a disaster, the GIS system sends a position information base of personnel in the building of the building with the disaster to the on-site disaster relief commanding position, and the on-site disaster relief commanding position puts emergency materials and emergency personnel to the personnel in the building with the disaster at a fixed point according to the information of the position information base of the personnel in the building and the information of the number of the personnel in the building with the disaster and the position of the area where the personnel are.
Preferably, the park emergency linkage method based on BIM + GIS further comprises the following steps in the step 7-8):
7-8-1) when the positioning tag alpha in one building beta does not send a positioning signal in a preset period t and the position of the positioning signal sent in the previous period t-1 of the positioning tag alpha is in the building beta, the GIS system finds the personnel information of the personnel x and the facial features of the personnel x corresponding to the positioning tag alpha in a personnel information total database;
7-8-2) the GIS system acquires real-time videos shot by emergency video monitoring cameras in a building beta in real time, facial features of a person x are identified in the acquired real-time videos, when the facial features of the person x are successfully identified in the real-time videos shot by one emergency video monitoring camera epsilon, position information stored by the emergency video monitoring camera epsilon in the GIS system is defined as position information of a positioning tag alpha in a period t, and the position information is stored in a person position information base in the building.
A park emergency linkage system based on BIM + GIS comprises a plurality of positioning base stations, a plurality of positioning tags, a POE switch, a GIS system and an application end; the GIS system stores the geographic position information of all buildings in the park and BIM building information models of all the buildings; the positioning base stations are respectively arranged in each floor of each building in the park, and all the positioning base stations respectively transmit data through the POE switch and the input end of the GIS system; the positioning tag periodically sends an uplink positioning signal to the positioning base station, the positioning base station sends the positioning signal to the GIS system, and the GIS system receives and stores the positioning signal sent by the positioning base station; and the output end of the GIS system transmits the data to the application end.
Preferably, the BIM + GIS-based park emergency linkage system further comprises a plurality of emergency video surveillance cameras and a plurality of in-out surveillance cameras; the in-out monitoring cameras are respectively arranged at the in-out ports of all buildings in the park; the emergency video monitoring cameras are arranged in each floor of each building in the park, and the emergency video monitoring cameras in the same building and the same floor are distributed; and the in-out monitoring camera and the emergency video monitoring camera carry out data transmission with the GIS system through the POE switch.
The BIM + GIS-based park emergency linkage system is optimized, wherein the GIS system comprises an IoT positioning platform, a positioning base station performs data transmission with the IoT positioning platform through a POE switch, and the IoT positioning platform calculates and processes received position information; the positioning label is in the form of a work card, a safety helmet, a wristwatch and the like.
The application has the advantages that:
in the technical scheme of this application, when the disaster takes place for the garden, the command dispatch of the inside and outside emergency resources of garden is realized through geographic information, realize macroscopic view's resource emergency information sharing and linkage dispatch, it is to arrive the concrete incident emergence position in garden when emergency resources, adopt BIM building information, combine UWB location technique, realize the emergent linkage resource scheduling of the micro vision field, for example, schedule the third floor of incident to the goods and materials, according to the information of video or other sensing feedbacks, realize the accurate input of emergency resources, in time, prevent the disaster, guarantee the safety of garden personnel and property.
Drawings
Fig. 1 is a schematic structural view of a park emergency linkage system in embodiment 1 of the present application;
fig. 2 is a layout structure diagram of a park emergency linkage system in a building according to embodiment 1 of the present application;
fig. 3 is a schematic diagram of positioning a positioning tag by a positioning base station in embodiment 1 of the present application;
fig. 4 is a positioning timing chart when a positioning base station locates a positioning tag in embodiment 1 of the present application.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example 1
The invention relates to a BIM + GIS-based park emergency linkage method, which comprises the following steps:
1) acquiring geographical position information of a plurality of buildings through a Beidou and GPS positioning system, and storing the geographical position information of all the buildings in a GIS system;
2) selecting one building, obtaining the building structure of the building, and establishing a BIM building information model through modeling software; carrying out format conversion on the BIM and transmitting and storing the BIM after format conversion in a GIS system;
3) arranging a plurality of positioning base stations in each floor of the building selected in the step 2) according to requirements, and transmitting and storing floor information and geographical position information of the positioning base stations into a GIS (geographic information system);
4) repeating the processes of the step 2) and the step 3), and transmitting and storing the BIM building information models of all buildings, the floor information of the positioning base station and the geographic position information of the positioning base station into a GIS system;
5) distributing a positioning tag for each person entering the park, and correspondingly storing the serial number of the positioning tag and the information of the person;
6) when a disaster occurs in one of the buildings and emergency materials and emergency personnel arrive at the park, acquiring geographic position information of the disaster occurring building and a navigation route for arriving at the building, which are stored and transmitted by the GIS system, and arriving at the disaster occurring building according to the navigation route;
7) the positioning base station receives positioning signals sent by the positioning labels, transmits the positioning signals to the GIS system, and the GIS system determines the number of personnel in the building with the disaster and the positions of the areas where the personnel are located;
8) according to the information of the number of the personnel in the disaster-occurring building, the position information of the area where the personnel are located and the BIM building information model of the building, which are obtained in the step 7), emergency materials and emergency personnel are released to the personnel in the disaster-occurring building at fixed points; and distributing a positioning label for each emergency material and each emergency personnel, determining the real-time position of each emergency material and each emergency personnel in the emergency process through a positioning base station, and determining the disaster relief in-place condition of the emergency material and the emergency personnel.
The positioning tags are in the forms of work cards, safety helmets, wristwatches and the like, and periodically send uplink UWB positioning pulse signals to each positioning base station
A park emergency linkage system based on BIM + GIS comprises a plurality of positioning base stations, a plurality of positioning tags, a POE switch, a GIS system and an application end; the GIS system stores the geographic position information of all buildings in the park and BIM building information models of all the buildings; the positioning base stations are respectively arranged in each floor of each building in the park, and all the positioning base stations respectively transmit data through the POE switch and the input end of the GIS system; the positioning tag periodically sends an uplink positioning signal to the positioning base station, the positioning base station sends the positioning signal to the GIS system, and the GIS system receives and stores the positioning signal sent by the positioning base station; and the output end of the GIS system transmits the data to the application end.
The GIS system comprises an IoT positioning platform, a positioning base station performs data transmission with the IoT positioning platform through a POE switch, and the IoT positioning platform calculates and processes the received position information; the positioning label is in the form of a workcard, a safety helmet, a wristwatch and the like, and adopts a self-calculation label.
The GIS geographic information system is a computer system for collecting, storing, managing, displaying and analyzing data on the earth's surface related to spatial and geographic distribution, for inputting, storing, querying, analyzing and displaying geographic data, which combines geography and cartography, has been widely used in different fields, and can integrate the unique visualization effect and geographic analysis function of maps with general database operation. In the application, the geographic information of the buildings in the park is collected and stored in the GIS system, and in the emergency process of the park, emergency materials and emergency personnel can enter the park to determine the route navigation which reaches the buildings as fast as possible according to the geographic information of the buildings which have disasters, so that the emergency disaster relief can be carried out as early as possible.
The positioning tags used in the embodiment are UWB positioning tags, and in the actual use process, the UWB positioning tags are distributed to all people entering the park, so that one person can be used. According to the principle of convenient carrying, the UWB positioning tag can be made into various forms such as a workcard, a safety helmet, a wrist strap and the like. In the emergency process, the positioning base station is used for positioning the UWB positioning tag, the position condition of each person in the park can be determined, once a disaster occurs, the position conditions of all the persons can be known through real-time positioning, emergency materials and emergency personnel can be reasonably distributed according to the position conditions, and the emergency relief is accurately and orderly carried out. Carry UWB location label in target person, emergent personnel, emergent material, UWB location label periodically sends the UWB location pulse signal of going upward to the location basic station, UWB location label has characteristics such as low-power consumption, portable, waterproof dustproof, is fit for the use of long-term non-maintaining in the garden. The UWB positioning base station is fixedly installed around the environment, receives and measures pulse signals of the UWB positioning tags to obtain high-precision positioning data, has various forms such as indoor type, industrial type and explosion-proof type, and supports various power supply modes and data interfaces.
The UWB base station is generally arranged around a positioning area, the position is fixed, at least 4 base stations are generally arranged, the position of the base station is strongly correlated with the positioning precision, and accurate measurement and correction are needed. The PoE switch is connected with each base station, so that data communication between the base stations and the IoT positioning platform is realized, and power can be supplied to the base stations in a PoE mode. The UWB tags are generally carried on personnel or materials, and the tags are independent from each other. In general, installation and deployment are simple and convenient.
The UWB positioning tag is a movable positioned target, and sends nanosecond pulse signals to the periphery, UWB base stations fixedly installed at the periphery receive and measure the pulse signals, and positioning measurement information such as the arrival time of the pulse signals is obtained through calculation such as filtering and sliding correlation. And information such as positioning measurement, base station coordinates and the like is used as input of positioning algorithms such as TDOA and the like, the IoT positioning platform completes high-precision position calculation of the UWB tag, and on the basis of the position calculation, various practical functions such as equipment management, thermodynamic diagrams, tracks and the like are packaged, so that service is provided for an application side.
TDOA requires that the base stations keep clock synchronization, and the UWB base station synchronization precision is very accurate and can reach within 0.1 ns. Therefore, in the following, assuming that the clocks of the UWB base stations are synchronized, the time required for the tag to reach each base station after transmitting the pulse signal varies from t1 to t4 as shown in fig. 4, and the distance difference between the other base station i and the base station 1 can be obtained by using the base station 1 as a reference:
ri，1＝c·(ti-t1)，
where c is the speed of light. According to the geometric rule, the locus of points in which the absolute value of the difference between distances from two fixed points in a plane is constant forms a hyperbola. Here, since the two fixed points are the distance difference between the base station i and the base stations 1, ri, 1, the intersection point of the hyperbolas is the positioning position. Taking 2D positioning as an example, mathematical derivation is performed, and let coordinates of base station i be (xi, yi), i is greater than or equal to 1 and less than or equal to M, coordinates of target tag be (x, y), and distance between tag and base station:
then the TDOA (distance difference) value of the tag to bs i and bs 1 is: r isi，1＝ri-r1Then, ri＝ri，1+r1Substituting into equation (1), taking the square to obtain: (r)i，1+r1)2＝(x-xi)2+(y-yi)2Make a difference and simplify, have ri，1 2＝-2ri，1r1-2xi，1x-2yi，1y+Ki-K1Wherein, let z be (x, y, r)1)TAs a parameter vector to be estimated, the above formula is converted into an equation set in a matrix form,
h is Gz wherein, Ki＝xi 2+yi 2，xi，1＝xi-x1，yi，1＝yi-y1
By using the least square method, the obtained estimators are:
the above formula uses M-1 TDOA measured values to form M-1 hyperbolic equations, and the label coordinates can be obtained by solving the equation set.
Example 2
This example differs from example 1 in that:
in the step 3), a plurality of emergency video monitoring cameras are arranged in each floor of the building according to requirements, and floor information of the emergency video monitoring cameras and geographical position information of the emergency video monitoring cameras are transmitted and stored in a GIS system.
The step 5) also comprises the following steps: distributing a positioning tag for each person entering the park and collecting face information of the person, correspondingly storing the serial number of the positioning tag, the face information of the person and the person information, and forming a total personnel information database which is stored in a GIS system.
In the step 3), entrance and exit monitoring cameras are arranged at the entrance and exit of the building;
the step 5) also comprises the following steps: the method comprises the following steps that an in-out monitoring camera at an in-out port of a building collects face information of personnel who enter and exit the building and transmits the collected face information to a GIS system; the GIS system compares the facial information acquired by the in-and-out monitoring camera with facial information stored in a personnel information total database, finds out the serial number of the positioning label and the personnel information corresponding to the facial information acquired by the in-and-out monitoring camera from the personnel information total database, and collects the serial number and the personnel information to form a personnel information database in the building;
the process of step 7) specifically comprises:
7-1) the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the positioning signals sent by the positioning labels to a GIS system;
7-2) after the GIS system receives the personnel positioning position information transmitted by the positioning base station, comparing and searching the positioning labels obtained in the step 5) with the corresponding storage information of the personnel information according to the serial numbers of the positioning labels in the personnel positioning position information so as to obtain personnel information data I corresponding to all the received positioning labels; sending the first personnel information data and the corresponding personnel position information to a site disaster relief command;
7-3) comparing the personnel information data I obtained in the step 7-2) with a personnel information database in the building, finding out personnel in the building and forming personnel information data II, wherein the positioning base station does not receive the positioning information;
7-4) searching in a personnel information total database to find the facial information of the personnel contained in the personnel information data II;
7-5) identifying the face information found in the step 7-4) in the real-time videos of all the emergency video monitoring cameras; after a certain person in the person information data II is identified in the real-time video of one emergency video monitoring camera, the position information of the emergency video monitoring camera is sent to a site disaster relief command;
7-6) repeating the process of the step 7-5) until all the persons contained in the person information data II are found;
in the step 8), after receiving the first personnel information data and the corresponding personnel position information, performing the prior allocation and allocation work of emergency materials and emergency personnel; and after receiving the position information of the personnel contained in the personnel information data II in batches, carrying out later batch distribution and payment work on emergency materials and emergency personnel.
The frequency band required by UWB positioning is distributed from 6G to 9G in China, and the penetrability of pulses is poor in such a high frequency band, so that the requirement of UWB positioning is optimal without shielding, and if the conditions of back facing a positioning base station and the like occur, the precision is reduced. If thick concrete walls or the like are present in the middle, it is preferable to place more base stations, otherwise positioning will certainly be problematic. Therefore, the propaganda video of a certain manufacturer in China can be seen easily, and people in the country always lift the UWB tag to walk on the hand, which is not without reason. However, the UWB base station is relatively expensive to set, and compared with other positioning methods, although the accuracy is the highest in the field positioning system, the cost is also the highest. Particularly, in areas with more compartments, such as office areas in a campus, if the effect of accurate positioning is to be achieved, UWB positioning base stations need to be arranged in each public compartment, which requires a great deal of cost investment.
With respect to this problem, another solution is given in this embodiment: the use of UWB to locate and monitor the camera face is otherwise used in combination. People who pass in and out of the building are monitored and recorded through the in-and-out monitoring camera, so that the number of people in the building can be accurately counted when a disaster happens. Then, the UWB base station and the tag are used for positioning, and the accurate position condition of the part of personnel in the building can be counted. According to the record of business turn over surveillance camera head and the contrast of UWB location, can know personnel number and personnel data that do not make statistics of, through the real-time video facial recognition who shoots at emergent video surveillance camera head, can find the personnel that do not make statistics of UWB location in real-time video, then regard as personnel's location with the position of the emergent video surveillance camera head of shooting real-time video, can compensate the not enough of UWB location like this, realize the emergent location of whole personnel in the building.
If all use the camera location, positioning accuracy is not high, if all use UWB location of full coverage, the cost is too high, and both combine to form complemental, realize better emergent statistical effect.
The BIM + GIS-based park emergency linkage system further comprises a plurality of emergency video monitoring cameras and a plurality of in-out monitoring cameras; the in-out monitoring cameras are respectively arranged at the in-out ports of all buildings in the park; the emergency video monitoring cameras are arranged in each floor of each building in the park, and the emergency video monitoring cameras in the same building and the same floor are distributed; and the in-out monitoring camera and the emergency video monitoring camera carry out data transmission with the GIS system through the POE switch.
The arrangement of the emergency video monitoring cameras can be matched with the arrangement of the positioning base station. After the positioning base station is arranged in the building, the weak signal area and the positioning signal area which can find the positioning base station in the building are shielded by actual measurement to cause the area which cannot be penetrated, and the emergency video monitoring cameras are arranged in the areas, so that the positioning defect of the UWB positioning base station can be complemented, and the better positioning effect is ensured.
Example 3
This example differs from example 1 in that:
in the step 3), a plurality of emergency video monitoring cameras are arranged in each floor of the building according to requirements, and floor information of the emergency video monitoring cameras and geographical position information of the emergency video monitoring cameras are transmitted and stored in a GIS system.
And 5) distributing a positioning tag for each person entering the park, collecting face information of the person, correspondingly storing the serial number of the positioning tag, the face information of the person and the person information to form a total person information database, and storing the total person information database into a GIS system.
The process at step 7) includes:
7-7) the mode that the positioning base station in the building receives the positioning signals sent by the positioning labels is real-time receiving, and the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the received positioning signals to the GIS system;
7-8) after the GIS system receives the position information of one positioning tag in one building in real time, according to the serial number of the positioning tag, finding out the personnel information corresponding to the positioning tag and the facial features of the personnel in a personnel information total database; correspondingly storing the personnel information corresponding to the positioning label, the facial features of the personnel and the real-time position information of the positioning label into a personnel position information base in the building;
7-9) repeating the process of the step 7-8) until the position information of all the positioning labels in the building in the step 7-8) is stored;
7-10) repeating the processes from the step 7-8) to the step 7-9) until the position information of the positioning tags in all buildings in the park is stored;
in step 8), when one of the buildings has a disaster, the GIS system sends a position information base of personnel in the building of the building with the disaster to the on-site disaster relief commanding position, and the on-site disaster relief commanding position puts emergency materials and emergency personnel to the personnel in the building with the disaster at a fixed point according to the information of the position information base of the personnel in the building and the information of the number of the personnel in the building with the disaster and the position of the area where the personnel are.
The steps 7-8) further comprise the following steps:
7-8-1) when the positioning tag alpha in one building beta does not send a positioning signal in a preset period t and the position of the positioning signal sent in the previous period t-1 of the positioning tag alpha is in the building beta, the GIS system finds the personnel information of the personnel x and the facial features of the personnel x corresponding to the positioning tag alpha in a personnel information total database;
7-8-2) the GIS system acquires real-time videos shot by emergency video monitoring cameras in a building beta in real time, facial features of a person x are identified in the acquired real-time videos, when the facial features of the person x are successfully identified in the real-time videos shot by one emergency video monitoring camera epsilon, position information stored by the emergency video monitoring camera epsilon in the GIS system is defined as position information of a positioning tag alpha in a period t, and the position information is stored in a person position information base in the building.
Compared with the mode of assisting positioning through the camera in the disaster period in the technical scheme of the embodiment 2, in the technical scheme of the embodiment 3, the emergency video monitoring camera is used for positioning the personnel in the building in the full time period. Therefore, when a disaster occurs, the personnel positioning information of the nearest time period before the disaster occurs can be used as the basis for disaster relief, and can be timely provided for disaster relief personnel at the first time. And when a fire disaster, smoke leakage and other disasters affecting the precision of the picture shot by the camera occur, the scheme of the embodiment 2 can be difficult to shoot clear pictures for facial recognition, the technical scheme of the embodiment 3 can carry out shooting recognition operation in all time, the trouble can be avoided, more accurate positioning information can be provided under various conditions, and the emergency disaster relief efficiency is ensured. However, the operation cost of this method is higher than that of embodiment 2, and what method can be used can be performed according to actual requirements.
A park emergency linkage system based on BIM + GIS comprises a plurality of positioning base stations, a plurality of positioning tags, a POE switch, a GIS system and an application end; the GIS system stores the geographic position information of all buildings in the park and BIM building information models of all the buildings; the positioning base stations are respectively arranged in each floor of each building in the park, and all the positioning base stations respectively transmit data through the POE switch and the input end of the GIS system; the positioning tag periodically sends an uplink positioning signal to the positioning base station, the positioning base station sends the positioning signal to the GIS system, and the GIS system receives and stores the positioning signal sent by the positioning base station; and the output end of the GIS system transmits the data to the application end.
The system also comprises a plurality of emergency video monitoring cameras and a plurality of in-out monitoring cameras; the in-out monitoring cameras are respectively arranged at the in-out ports of all buildings in the park; the emergency video monitoring cameras are arranged in each floor of each building in the park, and the emergency video monitoring cameras in the same building and the same floor are distributed; and the in-out monitoring camera and the emergency video monitoring camera carry out data transmission with the GIS system through the POE switch.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (9)
1. A park emergency linkage method based on BIM + GIS is characterized in that: the method comprises the following steps:
1) the method comprises the steps that geographical position information of a plurality of buildings is obtained through a Beidou and GPS positioning system, and the geographical position information of all the buildings is stored in a GIS system;
2) selecting one building, obtaining the building structure of the building, and establishing a BIM building information model through modeling software; carrying out format conversion on the BIM and transmitting and storing the BIM after format conversion in a GIS system;
3) arranging a plurality of positioning base stations in each floor of the building selected in the step 2) according to requirements, and transmitting and storing floor information and geographical position information of the positioning base stations into a GIS (geographic information system);
4) repeating the processes of the step 2) and the step 3), and transmitting and storing the BIM building information models of all buildings, the floor information of the positioning base station and the geographic position information of the positioning base station into a GIS system;
5) distributing a positioning tag for each person entering the park, and correspondingly storing the serial number of the positioning tag and the information of the person;
6) when a disaster occurs in one of the buildings and emergency materials and emergency personnel arrive at the park, acquiring geographic position information of the disaster occurring building and a navigation route for arriving at the building, which are stored and transmitted by the GIS system, and arriving at the disaster occurring building according to the navigation route;
7) the positioning base station receives the positioning signals sent by the positioning labels, transmits the positioning signals to the GIS system, and the GIS system determines the number of personnel in the building with the disaster and the position of the area where the personnel are located;
8) and releasing emergency materials and emergency personnel to the personnel in the disaster-occurring building at fixed points according to the information of the number of personnel in the disaster-occurring building, the information of the position of the area where the personnel are located and the BIM building information model of the building, which are obtained in the step 7).
2. The BIM + GIS-based park emergency linkage method according to claim 1, characterized in that: in the step 3), arranging a plurality of emergency video monitoring cameras in each floor of the building according to requirements, and transmitting and storing floor information of the emergency video monitoring cameras and geographical position information of the emergency video monitoring cameras in a GIS (geographic information system); the positioning tags are in the forms of work cards, safety helmets, wristwatches and the like, and periodically send uplink UWB positioning pulse signals to each positioning base station.
3. The BIM + GIS-based park emergency linkage method according to claim 2, characterized in that: the step 5) also comprises the following steps: distributing a positioning tag for each person entering the park and collecting face information of the person, correspondingly storing the serial number of the positioning tag, the face information of the person and the person information, and forming a total personnel information database which is stored in a GIS system.
4. The BIM + GIS-based park emergency linkage method according to claim 1, characterized in that: in the step 8), a positioning label is distributed to each emergency material and each emergency personnel, the real-time position of each emergency material and each emergency personnel in the emergency process is determined through a positioning base station, and the disaster relief in-place condition of the emergency material and the emergency personnel is determined.
The BIM + GIS-based park emergency linkage method according to claim 3, characterized in that:
in the step 3), entrance and exit monitoring cameras are arranged at the entrance and exit of the building;
the step 5) also comprises the following steps: the method comprises the following steps that an in-out monitoring camera at an in-out port of a building collects face information of personnel who enter and exit the building and transmits the collected face information to a GIS system; the GIS system compares the facial information acquired by the in-and-out monitoring camera with facial information stored in a personnel information total database, finds out the serial number of the positioning label and the personnel information corresponding to the facial information acquired by the in-and-out monitoring camera from the personnel information total database, and collects the serial number and the personnel information to form a personnel information database in the building;
the process of step 7) specifically comprises:
7-1) the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the positioning signals sent by the positioning labels to a GIS system;
7-2) after the GIS system receives the personnel positioning position information transmitted by the positioning base station, comparing and searching the positioning labels obtained in the step 5) with the corresponding storage information of the personnel information according to the serial numbers of the positioning labels in the personnel positioning position information so as to obtain personnel information data I corresponding to all the received positioning labels; sending the first personnel information data and the corresponding personnel position information to a site disaster relief command;
7-3) comparing the personnel information data I obtained in the step 7-2) with a personnel information database in the building, finding out personnel in the building and forming personnel information data II, wherein the positioning base station does not receive the positioning information;
7-4) searching in a personnel information total database to find the facial information of the personnel contained in the personnel information data II;
7-5) identifying the face information found in the step 7-4) in the real-time videos of all the emergency video monitoring cameras; after a certain person in the person information data II is identified in the real-time video of one emergency video monitoring camera, the position information of the emergency video monitoring camera is sent to a site disaster relief command;
7-6) repeating the process of the step 7-5) until all the persons contained in the person information data II are found;
in the step 8), after receiving the first personnel information data and the corresponding personnel position information, performing the prior allocation and allocation work of emergency materials and emergency personnel; and after receiving the position information of the personnel contained in the personnel information data II in batches, carrying out later batch distribution and payment work on emergency materials and emergency personnel.
5. The BIM + GIS-based park emergency linkage method according to claim 3, characterized in that: the process at step 7) includes:
7-7) the mode that the positioning base station in the building receives the positioning signals sent by the positioning labels is real-time receiving, and the positioning base station receives the positioning signals sent by the positioning labels in real time and sends the received positioning signals to the GIS system;
7-8) after the GIS system receives the position information of one positioning tag in one building in real time, according to the serial number of the positioning tag, finding out the personnel information corresponding to the positioning tag and the facial features of the personnel in a personnel information total database; correspondingly storing the personnel information corresponding to the positioning label, the facial features of the personnel and the real-time position information of the positioning label into a personnel position information base in the building;
7-9) repeating the process of the step 7-8) until the position information of all the positioning labels in the building in the step 7-8) is stored;
7-10) repeating the processes from the step 7-8) to the step 7-9) until the position information of the positioning tags in all buildings in the park is stored;
in step 8), when one of the buildings has a disaster, the GIS system sends a position information base of personnel in the building of the building with the disaster to the on-site disaster relief commanding position, and the on-site disaster relief commanding position puts emergency materials and emergency personnel to the personnel in the building with the disaster at a fixed point according to the information of the position information base of the personnel in the building and the information of the number of the personnel in the building with the disaster and the position of the area where the personnel are.
6. The BIM + GIS-based park emergency linkage method according to claim 6, characterized in that: the steps 7-8) further comprise the following steps:
7-8-1) when the positioning tag alpha in one building beta does not send a positioning signal in a preset period t and the position of the positioning signal sent in the previous period t-1 of the positioning tag alpha is in the building beta, the GIS system finds the personnel information of the personnel x and the facial features of the personnel x corresponding to the positioning tag alpha in a personnel information total database;
7-8-2) the GIS system acquires real-time videos shot by emergency video monitoring cameras in a building beta in real time, facial features of a person x are identified in the acquired real-time videos, when the facial features of the person x are successfully identified in the real-time videos shot by one emergency video monitoring camera epsilon, position information stored by the emergency video monitoring camera epsilon in the GIS system is defined as position information of a positioning tag alpha in a period t, and the position information is stored in a person position information base in the building.
7. A campus emergency linkage system of the BIM + GIS based campus emergency linkage method according to claims 1-7, characterized in that: the system comprises a plurality of positioning base stations, a plurality of positioning labels, a POE (Power over Ethernet) switch, a GIS (geographic information System) and an application terminal; the GIS system stores the geographic position information of all buildings in the park and BIM building information models of all the buildings; the positioning base stations are respectively arranged in each floor of each building in the park, and all the positioning base stations respectively transmit data through the POE switch and the input end of the GIS system; the positioning tag periodically sends an uplink positioning signal to the positioning base station, the positioning base station sends the positioning signal to the GIS system, and the GIS system receives and stores the positioning signal sent by the positioning base station; and the output end of the GIS system transmits the data to the application end.
8. The park emergency linkage system according to claim 8, wherein: the system also comprises a plurality of emergency video monitoring cameras and a plurality of in-out monitoring cameras; the in-out monitoring cameras are respectively arranged at the in-out ports of all buildings in the park; the emergency video monitoring cameras are arranged in each floor of each building in the park, and the emergency video monitoring cameras in the same building and the same floor are distributed; and the in-out monitoring camera and the emergency video monitoring camera carry out data transmission with the GIS system through the POE switch.
9. The park emergency linkage system according to claim 8, wherein: the GIS system comprises an IoT positioning platform, a positioning base station performs data transmission with the IoT positioning platform through a POE switch, and the IoT positioning platform calculates and processes the received position information; the positioning label is in the form of a work card, a safety helmet, a wristwatch and the like.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115065936A (en) * | 2022-06-08 | 2022-09-16 | 中机中联工程有限公司 | Three-dimensional visual positioning method based on lightweight building information model and Bluetooth technology |
| CN115248982A (en) * | 2022-09-21 | 2022-10-28 | 华北科技学院(中国煤矿安全技术培训中心) | Internet of things-based personnel-intensive region security risk monitoring method and system |
| CN116775930A (en) * | 2023-06-14 | 2023-09-19 | 广州图石科技有限公司 | BIM+GIS-based data combination and visual display method and system |
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2021
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115065936A (en) * | 2022-06-08 | 2022-09-16 | 中机中联工程有限公司 | Three-dimensional visual positioning method based on lightweight building information model and Bluetooth technology |
| CN115248982A (en) * | 2022-09-21 | 2022-10-28 | 华北科技学院(中国煤矿安全技术培训中心) | Internet of things-based personnel-intensive region security risk monitoring method and system |
| CN115248982B (en) * | 2022-09-21 | 2022-12-06 | 华北科技学院(中国煤矿安全技术培训中心) | Internet of things-based personnel-intensive region security risk monitoring method and system |
| CN116775930A (en) * | 2023-06-14 | 2023-09-19 | 广州图石科技有限公司 | BIM+GIS-based data combination and visual display method and system |
| CN116775930B (en) * | 2023-06-14 | 2024-03-08 | 广州图石科技有限公司 | BIM+GIS-based data combination and visual display method and system |
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