CN105657664A - Tourist management system based on position sharing in mobile internet environment - Google Patents
Tourist management system based on position sharing in mobile internet environment Download PDFInfo
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- CN105657664A CN105657664A CN201610112229.3A CN201610112229A CN105657664A CN 105657664 A CN105657664 A CN 105657664A CN 201610112229 A CN201610112229 A CN 201610112229A CN 105657664 A CN105657664 A CN 105657664A
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- 238000004891 communication Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000010845 search algorithm Methods 0.000 claims description 4
- 238000007726 management method Methods 0.000 description 49
- 238000005516 engineering process Methods 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 4
- 230000004807 localization Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
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- 235000009566 rice Nutrition 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
The invention discloses a tourist management system based on position sharing in a mobile internet environment. The system comprises mobile terminals and a tourist management server. Firstly, the mobile terminal of a tour guide obtains all tourist information of this trip from the server; a current geographic position is determined by the mobile terminal through a positioning module, the position information is sent to the server through a team operation module, positions shared by other users are obtained from the server, and the positions are displayed through an electronic map module; the tour guide mobile terminal builds a geographic fence for managing tourists, geographic fence information is sent to the server, and the server sends the geographic fence information of the tour guide to all the tourists; finally, the mobile terminals of the tourists monitor whether the tourists are within the geographic fence of the tour guide or not, when the positions of the tourists are not in the geographic fence of the tour guide, the mobile terminals of the tourists and the mobile terminal of the tour guide are informed of the situation, and the mobile terminal of the tour guide sends reminding information indicating that the tourists may fall behind to the tourists.
Description
Technical field
The present invention relates to travel information service, the visitor management system that particularly under a kind of mobile internet environment, position-based is shared.
Background technology
In recent years, Chinese residents tourism demand expands rapidly with income increase, and travel in China industry development is rapid. Showing according to the graduate data of travel in China: travel in China market in 2014 realizes growing steadily, domestic travel 36.11 hundred million person-times increases by 10.67% on a year-on-year basis. On the one hand, travel person-time is increasing, and national tourism consumption level is also constantly soaring. Within 2014, domestic travel total income reaches 3,031,200,000,000 yuan, increases by 15.40% on a year-on-year basis. From annual situation, China's tourist industry comes into " mass tourism " stage, and the wish of going on a tour of people is constantly surging, and domestic tourist can continue to keep relatively optimistic expection.
Visitor is when scenic spot is gone sight-seeing, and in order to have each sight spot deeper into comprehensive understanding, obtains better Tourist Experience, and a lot of visitors can select with a trip, and at this moment the guide of travel party can provide one-stop management service to visitor, facilitates visitor to a certain extent. But owing to geographical position, scenic spot is unfamiliar with by visitor, usually occur that visitor is lost at strange sight spot and the phenomenon such as out of touch of conducting a sightseeing tour, therefore tourist security guarantee, accident be accurately positioned be guide during leading group of people must faced by problem of management, but, current visitor management relies primarily on guide's labor management, it is impossible to accomplish accurate management, real-time management and high-efficiency management.
Many different visitor management methods are had to have been achieved for some achievements at present. Chinese patent " mobile terminal for travelling ", application number: 201320362729.4, Authorization Notice No. 203405852U discloses a kind of mobile terminal for travelling, this mobile terminal is by setting up a set of system comprising the hardware device such as embedded microprocessor, memorizer, realizing the purpose that visitor is managed by guide. But above-mentioned mobile terminal needs integrated a lot of hardware modules, greatly reduces the portability of mobile terminal, it does not have use existing smart mobile phone as mobile terminal.Chinese patent " a kind of localization method, central server and intelligent mobile terminal ", application number: 201510109615.2, Authorization Notice No. 104703137A discloses a kind of localization method, central server and intelligent mobile terminal, this invention sends admission ticket identification information and positional information by localization method to central server, by central server, subscription client sent navigation information, the around information such as visitor's situation and personalized tour, it is achieved intelligent visitor management. But foregoing invention is relatively applicable under the scene gone on a tour of individual traveler, it is possible to provide personalized service to visitor, but for the centralized management of visitor when not being well positioned to meet guide with tourism.
Along with the rise of smart travel, the state-of-the-art technology such as Internet of Things, cloud computing, big data has been applied to increasing scenic spot. Along with perception and the lifting utilizing information capability, we get more and more at utilizable data, therefore create increasing LBS (LocationBasedService, position-based service) application. The most important condition of LBS application is exactly the positional information of user, and the positional information of user is more accurate, and the service quality of LBS application is more high. Current people are in most cases according to GPS (GlobalPositioningSystem, global positioning system) obtain the positional information of user, but having more barrier, flow of the people in scenic spot than comparatively dense, now the precision of GPS is difficult to meet the required precision of visitor management. When gps signal is more weak or cannot obtain, the commonly used one of academia is based on WiFi (WIreless-Fidelity, Wireless Fidelity) the fingerprint recognition location algorithm of signal intensity, this location mode is the focus of current indoor and outdoors High-Density Urban Area Study of location. According to the planning of National Tourism Administration, to the year two thousand twenty, China will realize the above tourist attraction of 3A level and three-star above hotel WiFi networks all standing. This gives and adopts the location mode based on WiFi signal intensity level to provide hardware condition.
Summary of the invention
Goal of the invention: the technical problem to be solved is for the deficiencies in the prior art, it is provided that the visitor management system that under a kind of mobile internet environment, position-based is shared.
Described visitor management system includes mobile terminal and visitor management server; Mobile terminal includes guide's mobile terminal and visitor's mobile terminal;
Described guide's mobile terminal and visitor's mobile terminal each include electric map module, locating module, team operation module, mobile terminal message pushing module and mobile terminal network communication module;
Guide's mobile terminal also includes geography fence module and mobile terminal monitored module of conducting a sightseeing tour;
Visitor's mobile terminal also includes the mobile terminal monitored module of visitor;
Described visitor management server includes server message pushing module, tourist information typing module and server network communication module.
Described electric map module is used for showing the real time position of geography information and other mobile terminals near mobile terminal;
Locating module is for determining the longitude and latitude of mobile terminal present position;
Team operation module is used for creating and dismissing team, and it is shared to realize the position between Team Member;
The mobile terminal message pushing module mobile terminal that is used for conducting a sightseeing tour pushes Weather information and safety warning information to visitor's mobile terminal;
Geography fence module is for setting up circular geographical frontier and the geography fence of management visitor's mobile terminal;
Whether mobile terminal monitored module of conducting a sightseeing tour is in for monitoring visitor's mobile terminal in the geography fence of guide's mobile terminal;
The mobile terminal monitored module definition of visitor monitors the method leaving geography fence;
Mobile terminal network communication module is used for connecting the Internet and interacting with visitor management server.
In the present invention, the locating module of guide mobile terminal adopts the mixed positioning algorithm based on k Wei Shu (kd-tree) to determine the longitude and latitude of guide position, mobile terminal. The traditional fingerprint recognition based on WiFi signal intensity (Fingerprinting) algorithm is the focus of current indoor and outdoors High-Density Urban Area Study of location, but it is excessive to there is matching stage amount of calculation in this Fingerprinting location technology, the problem of calculating time length, the computing capability of mobile terminal and power consumption can be proposed very big challenge by undoubtedly. The present invention proposes on the basis of traditional fingerprint recognition location algorithm, and the matching stage at algorithm adopts the algorithm based on kd-tree, greatly reduces amount of calculation, accelerates matching speed, thus reaching quick location, reducing the purpose of power consumption. Described locating module adopts the mixed positioning algorithm based on k Wei Shu (kd-tree) to determine the longitude and latitude of mobile terminal position, comprises the steps:
Step 1-1, when mobile terminal only has gps signal, selects GPS individually to position mode, and the longitude and latitude obtained is the position of current mobile terminal, and position fixing process terminates, and otherwise, performs step 1-2;
Step 1-2, M equally distributed reference point RP (ReferencePoint) is set in region, required location, it is approximately a square by region, required location, this square is evenly divided into M row, each row is evenly divided into M row, generate M*M equally distributed point, M*M reference point RP is individually positioned on these positions (such as by square that this region is 4*4 rice, arrange 16 reference points to be uniformly distributed with the interval of 1 meter, it is divided into 4 row), all reference point RP in region, traversal required location, for each reference point, measure the signal strength values RSSI (ReceivedSignalStrengthIndication) from different radio access point AP (AccessPoint), the signal strength values RSSI of the latitude and longitude information of each reference point and respective wireless access point be recorded in the data base of visitor management server, record format is < (RSSIi1, RSSIi2, RSSIia..., RSSIiN), (xi, yi) >, wherein xi��yiRepresent longitude and latitude, the RSSI of i-th reference point respectivelyiaRepresenting that i-th reference point receives the signal strength values of a WAP, 1��a��N, N is the quantity of WAP;
Step 1-3, builds k Wei Shu (kd-tree) to the record in data base;
Step 1-4, obtains signal strength values Drssi, the Drssi=< RSSI of the different radio access point that this mobile terminal receivesd1, RSSId2, RSSIda..., RSSIdN>, wherein RSSIdaRepresenting that this mobile terminal receives the signal strength values of a WAP, d is this mobile terminal;
Step 1-5, adopts nearest neighbor search algorithm to find out on k Wei Shu and the vector value Drssi RSSI vector value mated most, and the longitude and latitude that this RSSI vector value is corresponding is the estimation positional value of this mobile terminal.
Step 1-3 builds k Wei Shu comprise the steps:
Step 1-3-1, finds out the signal strength values RSSI of the i-th reference point l position of all records in data baseilMedian RSSIml, with RSSImlThe record at place as root node, wherein l=1, and other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Little record as left region, other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Big record is as right region;
Step 1-3-2, finds out a record as the left child of its father node, namely in the left region of root node, finds out the signal strength values RSSI of all records in left region in left regionilMedian RSSIslThe record at place, as the left sibling of root node, wherein carries out assignment operation l=l (modN)+1, by signal strength values RSSI in the residue record in left regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Find out a record in right region as the right child of its father node, namely in the right region of root node, find out the signal strength values RSSI of all records in right regionilMedian RSSItlThe record at place, as the right node of root node, by signal strength values RSSI in the residue record in right regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Step 1-3-3, repeats step 1-3-2, until the record number in all regions is 0, thus completing the structure of k dimension tree kd-tree.
Present invention employs geography fence technology (Geo-Fenceing), geography fence technology is a kind of new opplication of LBS. Geographic area in reality is surrounded a virtual geographical frontier by it. When visitor's mobile terminal enters or when exiting certain geography fence, it is possible to trigger response events so that information such as guide mobile terminal can receive the falling behind of visitor in real time, rejoin one's unit. The circular geographical frontier of the management visitor that described geography fence module is set up includes three attributes: the center of circle, mark ID and radius R, wherein the center of circle is the latitude and longitude value of guide mobile terminal position, mark ID is a unique character string constant, and the computing formula of radius R is as follows:
Wherein, P is visitor's number of this tourism, and �� is the parameter value that guide is arranged, 0 < �ҡ�1.
The method of geography fence is left in the monitoring of the mobile terminal monitored module definition of described visitor: if this visitor's mobile terminal leaves the geography fence of affiliated guide's mobile terminal, visitor's mobile terminal is then reminded to leave one's post, and guide downstream terminal sends message informing, the ID that this notification package contains visitor, fall behind the time (Time), current location (latitude, longitude) information, guide's mobile terminal is according to the information notice received, this visitor's mobile terminal is pushed safety warning information, notifies that visitor rejoins one's unit as early as possible.
In described visitor management server, server message pushing module is used for pushing tourist information, scenic spot information, security warning message to guide's mobile terminal and visitor's mobile terminal;
Tourist information typing module is for gathering the essential information (including name, age, sex) of visitor, and is deposited in visitor management server;
Server network communication module is used for connecting the Internet and interacting with guide's mobile terminal and visitor's mobile terminal.
Described visitor management working-flow is as follows:
Step 2-1, guide's mobile terminal obtains all tourist information of this tourism from visitor management server, and by this travelling team of team operation module creation, all visitor's mobile terminals add this travelling team by team operation module;
Step 2-2, guide's mobile terminal and visitor's mobile terminal adopt locating module to determine the geographical position being currently located, by team operation module, positional information is sent to visitor management server, and obtain, from visitor management server, the position that other mobile terminals are shared, shown by electric map module;
Step 2-3, guide's mobile terminal number according to visitor, being set up the geography fence of management visitor by geography fence module, and geography fence information is sent to visitor management server, geography fence information is sent to all visitor's mobile terminals by visitor management server;
Step 2-4, whether visitor is mobile terminal monitored self is in the geography fence that this guide's mobile terminal is set up, notify visitor's mobile terminal and guide's mobile terminal when the position of visitor's mobile terminal is not in geography fence, visitor's mobile terminal is pushed the prompting message being likely to fall behind by guide's mobile terminal.
Beneficial effect:
(1) the mixed positioning algorithm based on kd-tree is adopted, sight spot that can be many at barrier, crowded preferably, guide and visitor are carried out fast and accurate location positioning, the time complexity of traditional location algorithm based on WiFi signal intensity is down to o (logn) by o (n);
(2) adopt geography fence technology, monitor visitor mobile terminal whether in the virtual geographic boundary that guide is arranged so that guide can find tourist left behind in time, facilitates guide's management to visitor.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments the present invention being done and further illustrate, the above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is the system flow chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is illustrated. It it is noted that described embodiment is solely for the purpose of illustration, rather than limitation of the scope of the invention.
The invention discloses the visitor management system that under a kind of mobile internet environment, position-based is shared, the flow chart of this system is as it is shown in figure 1, described visitor management system includes mobile terminal and visitor management server; Mobile terminal includes guide's mobile terminal and visitor's mobile terminal;
Described guide's mobile terminal and visitor's mobile terminal each include electric map module, locating module, team operation module, mobile terminal message pushing module and mobile terminal network communication module;
Guide's mobile terminal also includes geography fence module and mobile terminal monitored module of conducting a sightseeing tour;
Visitor's mobile terminal also includes the mobile terminal monitored module of visitor;
Described visitor management server includes server message pushing module, tourist information typing module and server network communication module.
Described electric map module is used for showing the real time position of geography information and other mobile terminals near mobile terminal;
Locating module is for determining the longitude and latitude of mobile terminal present position;
Team operation module is used for creating and dismissing team, and it is shared to realize the position between Team Member;
The mobile terminal message pushing module mobile terminal that is used for conducting a sightseeing tour pushes Weather information and safety warning information to visitor's mobile terminal;
Geography fence module is for setting up circular geographical frontier and the geography fence of management visitor's mobile terminal;
Whether mobile terminal monitored module of conducting a sightseeing tour is in for monitoring visitor's mobile terminal in the geography fence of guide's mobile terminal;
The mobile terminal monitored module definition of visitor monitors the method leaving geography fence;
Mobile terminal network communication module is used for connecting the Internet and interacting with visitor management server.
In the present invention, the locating module of guide mobile terminal adopts the mixed positioning algorithm based on k Wei Shu (kd-tree) to determine the longitude and latitude of guide position, mobile terminal.The traditional fingerprint recognition based on WiFi signal intensity (Fingerprinting) algorithm is the focus of current indoor and outdoors High-Density Urban Area Study of location, but it is excessive to there is matching stage amount of calculation in this Fingerprinting location technology, the problem of calculating time length, the computing capability of mobile terminal and power consumption can be proposed very big challenge by undoubtedly. The present invention proposes on the basis of traditional fingerprint recognition location algorithm, and the matching stage at algorithm adopts the algorithm based on kd-tree, greatly reduces amount of calculation, accelerates matching speed, thus reaching quick location, reducing the purpose of power consumption. Described locating module adopts the mixed positioning algorithm based on k Wei Shu (kd-tree) to determine the longitude and latitude of mobile terminal position, comprises the steps:
Step 1-1, when mobile terminal only has gps signal, selects GPS individually to position mode, and the longitude and latitude obtained is the position of current mobile terminal, and position fixing process terminates, and otherwise, performs step 1-2;
Step 1-2, M equally distributed reference point RP (ReferencePoint) is set in region, required location, all reference point RP in region, traversal required location, for each reference point, measure the signal strength values RSSI (ReceivedSignalStrengthIndication) from different radio access point AP (AccessPoint), recorded in data base by the signal strength values RSSI of the latitude and longitude information of each reference point and respective wireless access point, record format is < (RSSIi1, RSSIi2, RSSIia..., RSSIiN), wherein xi��yiRepresent longitude and latitude, the RSSI of i-th reference point respectivelyiaRepresenting that i-th reference point receives the signal strength values of a WAP, 1��a��N, N is the quantity of WAP;
Step 1-3, builds k Wei Shu (kd-tree) to the record in data base;
Step 1-4, obtains signal strength values Drssi, the Drssi=< RSSI of the different radio access point that this mobile terminal receivesd1, RSSId2, RSSIda..., RSSIdN>, wherein RSSIdaRepresenting that this mobile terminal receives the signal strength values of a WAP, d is this mobile terminal;
Step 1-5, adopts nearest neighbor search algorithm to find out on k Wei Shu and the vector value Drssi RSSI vector value mated most, and the longitude and latitude that this RSSI vector value is corresponding is the estimation positional value of this mobile terminal.
Step 1-3 builds k Wei Shu comprise the steps:
Step 1-3-1, finds out the signal strength values RSSI of the i-th reference point l position of all records in data baseilMedian RSSIml, with RSSImlThe record at place as root node, wherein l=1, and other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Little record as left region, other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Big record is as right region;
Step 1-3-2, finds out a record as the left child of its father node, namely in the left region of root node, finds out the signal strength values RSSI of all records in left region in left regionilMedian RSSIslThe record at place, as the left sibling of root node, wherein carries out assignment operation l=l (modN)+1, by signal strength values RSSI in the residue record in left regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Find out a record in right region as the right child of its father node, namely in the right region of root node, find out the signal strength values RSSI of all records in right regionilMedian RSSItlThe record at place, as the right node of root node, by signal strength values RSSI in the residue record in right regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Step 1-3-3, repeats step 1-3-2, until the record number in all regions is 0, thus completing the structure of k dimension tree kd-tree.
Present invention employs geography fence technology (Geo-Fenceing), geography fence technology is a kind of new opplication of LBS. Geographic area in reality is surrounded a virtual geographical frontier by it. When visitor's mobile terminal enters or when exiting certain geography fence, it is possible to trigger response events so that information such as guide mobile terminal can receive the falling behind of visitor in real time, rejoin one's unit. The circular geographical frontier of the management visitor that described geography fence module is set up includes three attributes: the center of circle, mark ID and radius R, wherein the center of circle is the latitude and longitude value of guide mobile terminal position, mark ID is a unique character string constant, and the computing formula of radius R is as follows:
Wherein, P is visitor's number of this tourism, and �� is the parameter value that guide is arranged, 0 < �ҡ�1.
The method of geography fence is left in the monitoring of the mobile terminal monitored module definition of described visitor: if this visitor's mobile terminal leaves the geography fence of affiliated guide's mobile terminal, visitor's mobile terminal is then reminded to leave one's post, and guide downstream terminal sends message informing, the ID that this notification package contains visitor, fall behind the time (Time), current location (latitude, longitude) information, guide's mobile terminal is according to the information notice received, this visitor's mobile terminal is pushed safety warning information, notifies that visitor rejoins one's unit as early as possible.
In described visitor management server, server message pushing module is used for pushing tourist information, scenic spot information, security warning message to guide's mobile terminal and visitor's mobile terminal;
Tourist information typing module is for gathering the essential information (including name, age, sex) of visitor, and is deposited in visitor management server;
Server network communication module is used for connecting the Internet and interacting with guide's mobile terminal and visitor's mobile terminal.
Described visitor management working-flow is as follows:
Step 2-1, guide's mobile terminal obtains all tourist information of this tourism from visitor management server, and by by team operation module and create this travelling team, all visitor's mobile terminals add this travelling team by team operation module;
Step 2-2, guide's mobile terminal and visitor's mobile terminal adopt locating module to determine the geographical position being currently located, by team operation module, positional information is sent to visitor management server, and obtain, from visitor management server, the position that other mobile terminals are shared, shown by electric map module;
Step 2-3, guide's mobile terminal number according to visitor, being set up the geography fence of management visitor by geography fence module, and geography fence information is sent to visitor management server, geography fence information is sent to all visitor's mobile terminals by visitor management server;
Step 2-4, whether visitor is mobile terminal monitored self is in the geography fence that this guide's mobile terminal is set up, notify visitor's mobile terminal and guide's mobile terminal when the position of visitor's mobile terminal is not in geography fence, visitor's mobile terminal is pushed the prompting message being likely to fall behind by guide's mobile terminal.
Embodiment
The present embodiment employs so-and-so lake scenic area and scenic spot data of A city and tests.
For the initial data taken, first, determining the longitude and latitude of mobile terminal position with the mixed positioning algorithm based on k Wei Shu (kd-tree), process is as follows:
The first step, if only have gps signal, selects GPS individually to position mode, and the longitude and latitude obtained is the position of present terminal, and position fixing process terminates, and otherwise, performs second step;
Second step, M equally distributed reference point RP (ReferencePoint) is set in region, required location, all reference point (ReferencePoint in region, traversal required location, RP), for each reference point, measure the signal strength values (ReceivedSignalStrengthIndication from different radio access point AP (AccessPoint), RSSI), the signal strength values RSSI of the latitude and longitude information of each reference point and respective wireless access point be recorded in data base. Data form is < (RSSIi1, RSSIi2, RSSIia..., RSSIiN)) (xi, yi) >, wherein (xi, yi) for the longitude of i-th reference point and latitude, RSSIiaReceive the signal strength values of a WAP for i-th reference point, 1 < a < N, N is the quantity of WAP.
3rd step, builds k Wei Shu (kd-tree) to the record in data base.
4th step, obtains signal strength values Drssi, the Drssi=< RSSI of the different radio access point that this mobile terminal receivesd1, RSSId2, RSSIda..., RSSIdN>, wherein RSSIdaRepresenting that this mobile terminal receives the signal strength values of a WAP, d is this mobile terminal, and 1��a��N, N is the quantity of WAP.
5th step, adopts nearest neighbor search algorithm to find out the RSSI vector value mated most with Drssi on kd-ree, and the longitude and latitude that this RSSI vector value is corresponding is the estimation positional value of this mobile terminal.
Secondly, guide's mobile terminal and visitor's mobile terminal adopt locating module to determine the geographical position being currently located, by team operation module, positional information is sent to visitor management server, and obtains, from server, the position that other mobile terminals are shared, shown by electric map module;
Then, the mobile terminal number according to visitor of conducting a sightseeing tour, build the geography fence of management visitor's mobile terminal, and geography fence information is sent to server, the geography fence information of guide's mobile terminal is sent to all visitor's mobile terminals by server;
Finally, whether visitor is mobile terminal monitored self is in the geography fence of this guide, notify visitor's mobile terminal and guide's mobile terminal when the position of visitor's mobile terminal is not in the geography fence that guide sets, visitor's mobile terminal is pushed the prompting message being likely to fall behind by guide's mobile terminal.
Claims (8)
1. the visitor management system that under a mobile internet environment, position-based is shared, it is characterised in that include mobile terminal and visitor management server; Mobile terminal includes guide's mobile terminal and visitor's mobile terminal;
Described guide's mobile terminal and visitor's mobile terminal each include electric map module, locating module, team operation module, mobile terminal message pushing module and mobile terminal network communication module;
Guide's mobile terminal also includes geography fence module and mobile terminal monitored module of conducting a sightseeing tour;
Visitor's mobile terminal also includes the mobile terminal monitored module of visitor;
Described visitor management server includes data base, server message pushing module, tourist information typing module and server network communication module.
2. the visitor management system that under a kind of mobile internet environment according to claim 1, position-based is shared, it is characterised in that described electric map module is used for showing the real time position of geography information and other mobile terminals near mobile terminal;
Locating module is for determining the longitude and latitude of mobile terminal present position;
Team operation module is used for creating and dismissing team, and it is shared to realize the position between Team Member;
The mobile terminal message pushing module mobile terminal that is used for conducting a sightseeing tour pushes Weather information and safety warning information to visitor's mobile terminal;
Geography fence module is for setting up circular geographical frontier and the geography fence of management visitor's mobile terminal;
Whether mobile terminal monitored module of conducting a sightseeing tour is in for monitoring visitor's mobile terminal in the geography fence of guide's mobile terminal;
The mobile terminal monitored module definition of visitor monitors the method leaving geography fence;
Mobile terminal network communication module is used for connecting the Internet and interacting with visitor management server.
3. the visitor management system that under a kind of mobile internet environment according to claim 2, position-based is shared, it is characterized in that, described locating module adopts the mixed positioning algorithm based on k Wei Shu to determine the longitude and latitude of mobile terminal position, comprises the steps:
Step 1-1, when mobile terminal only has gps signal, selects GPS individually to position mode, and the longitude and latitude obtained is the position of current mobile terminal, and position fixing process terminates, and otherwise, performs step 1-2;
Step 1-2, M equally distributed reference point RP is set in region, required location, all reference point RP in region, traversal required location, for each reference point, measure the signal strength values RSSI from different radio access point AP, being recorded by the signal strength values RSSI of the latitude and longitude information of each reference point and respective wireless access point in the data base of visitor management server, record format is < (RSSIi1,RSSIi2,RSSIia..., RSSIiN), (xi,yi) >, wherein xi��yiRepresent longitude and latitude, the RSSI of i-th reference point respectivelyiaRepresenting that i-th reference point receives the signal strength values of a WAP, 1��a��N, N is the quantity of WAP;
Step 1-3, builds k Wei Shu to the record in data base;
Step 1-4, obtains signal strength values Drssi, the Drssi=< RSSI of the different radio access point that this mobile terminal receivesd1,RSSId2,RSSIda��,RSSIdN>, wherein RSSIdaRepresenting that this mobile terminal receives the signal strength values of a WAP, d is this mobile terminal;
Step 1-5, adopts nearest neighbor search algorithm to find out on k Wei Shu and the vector value Drssi RSSI vector value mated most, and the longitude and latitude that this RSSI vector value is corresponding is the estimation positional value of this mobile terminal.
4. the visitor management system that under a kind of mobile internet environment according to claim 3, position-based is shared, it is characterised in that build k Wei Shu in step 1-3 and comprise the steps:
Step 1-3-1, finds out the signal strength values RSSI of the i-th reference point l position of all records in data baseilMedian RSSIml, with RSSImlThe record at place as root node, wherein l=1, and other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Little record as left region, other record in signal strength values RSSIi1Ratio signal strength values RSSIm1Big record is as right region;
Step 1-3-2, finds out a record as the left child of its father node, namely in the left region of root node, finds out the signal strength values RSSI of all records in left region in left regionilMedian RSSIslThe record at place, as the left sibling of root node, wherein carries out assignment operation l=l (modN)+1, by signal strength values RSSI in the residue record in left regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Find out a record in right region as the right child of its father node, namely in the right region of root node, find out the signal strength values RSSI of all records in right regionilMedian RSSItlThe record at place, as the right node of root node, by signal strength values RSSI in the residue record in right regionilRatio signal strength values RSSIslLittle record is as the left subregion in this region, signal strength values RSSI in residue recordilRatio signal strength values RSSIslBig record is as the right subregion in this region;
Step 1-3-3, repeats step 1-3-2, until the record number in all regions is 0, thus completing the structure of k Wei Shu.
5. the visitor management system that under a kind of mobile internet environment according to claim 4, position-based is shared, it is characterized in that, the circular geographical frontier of the management visitor that described geography fence module is set up includes three attributes: the center of circle, mark ID and radius R, wherein the center of circle is the latitude and longitude value of guide mobile terminal position, mark ID is a unique character string constant, and the computing formula of radius R is as follows:
Wherein, P is visitor's number of this tourism, and �� is the parameter value that guide is arranged.
6. the visitor management system that under a kind of mobile internet environment according to claim 5, position-based is shared, it is characterized in that, the method of geography fence is left in the monitoring of the mobile terminal monitored module definition of described visitor: if this visitor's mobile terminal leaves the geography fence of affiliated guide's mobile terminal, visitor's mobile terminal is then reminded to leave one's post, and guide downstream terminal sends message informing, this notification package contains the ID of visitor, fall behind the time, current location information, guide's mobile terminal is according to the message informing received, this visitor's mobile terminal is pushed safety warning information, notify that visitor rejoins one's unit as early as possible.
7. the visitor management system that under a kind of mobile internet environment according to claim 6, position-based is shared, it is characterised in that in described visitor management server, data base is for storing the reference record value etc. of tourist information, location algorithm;
Server message pushing module is used for pushing tourist information, scenic spot information, security warning message to guide's mobile terminal and visitor's mobile terminal;
Tourist information typing module is for gathering the essential information of visitor and being deposited in visitor management server;
Server network communication module is used for connecting the Internet and interacting with guide's mobile terminal and visitor's mobile terminal.
8. the visitor management system that under a kind of mobile internet environment according to claim 7, position-based is shared, it is characterised in that described visitor management working-flow is as follows:
Step 2-1, guide's mobile terminal obtains all tourist information of this tourism from visitor management server, and by this travelling team of team operation module creation, all visitor's mobile terminals add this travelling team by team operation module;
Step 2-2, guide's mobile terminal and visitor's mobile terminal adopt locating module to determine the geographical position being currently located, by team operation module, positional information is sent to visitor management server, and obtain, from visitor management server, the position that other mobile terminals are shared, shown by electric map module;
Step 2-3, guide's mobile terminal number according to visitor, being set up the geography fence of management visitor by geography fence module, and geography fence information is sent to visitor management server, geography fence information is sent to all visitor's mobile terminals by visitor management server;
Step 2-4, whether visitor is mobile terminal monitored self is in the geography fence that this guide's mobile terminal is set up, notify visitor's mobile terminal and guide's mobile terminal when the position of visitor's mobile terminal is not in geography fence, visitor's mobile terminal is pushed the prompting message being likely to fall behind by guide's mobile terminal.
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