CN103049538B - The action message syndication search of a kind of position-based service and interactive approach and system - Google Patents

Abstract

The invention discloses a location-based service-based activity information aggregation search and interaction method, comprising: a server extracts activity information and longitude and latitude information of multiple activity information publishing websites from the Internet, and stores them on the data server; the client collects user interests Activity characteristic information, and request activity information from the server according to the collected user interest and activity characteristic information, the server accesses the data server according to the user interest and activity characteristic information to perform activity information distance processing, timeliness processing and sorting processing, and send to The client returns the processed activity information, and the client displays the processed activity information to the user. The present invention can solve the lack of a method in the prior art that establishes a dynamic connection between the people participating in the activity, and allows the real-time dynamic messages generated by the user to circulate among the activity participants in real time, and allows the user to interact with other participants in the activity. The question of the method of interaction between them.

Description

A location-based service-based activity information aggregation search and interaction method and system

technical field

The invention belongs to the field of Internet application technology, and more specifically relates to a location-based service-based activity information aggregation search and interaction method and system.

Background technique

Various activities are held in urban life every day, such as public welfare blood donation activities, volunteer activities, cultural science lectures, performances, commercial promotions, commodity exhibitions, social activities Traveling together, dating activities, etc. The Internet provides people with rich activity information, which has the characteristics of large amount of information, scattered geographical distribution, strong timeliness and strong geographical correlation. For a user, it is likely that he wishes to know about interesting activities that are or will be held around his location or a specific location. However, the existing general search engines or event information release websites require keyword search and category browsing methods on the site, requiring users to describe their location and activities with keywords or to select topics for browsing categories, and there are many redundancies in the obtained results. The accuracy and timeliness of the information and location are not high, requiring the user to perform manual filtering many times. This requires a huge search cost for users, especially mobile users, who want to discover interesting activities nearby or near a specific location anytime, anywhere.

At the same time, the activity has a strong real-time interaction, and there is a lack of a dynamic connection between the people who will participate in the activity in the existing technical solutions, and the real-time dynamic message generated by the user can be circulated in real time among the activity participants, and A way for users to interact with other participants in an event.

Contents of the invention

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a location-based service-based activity information aggregation search and interaction method, aiming to solve the lack of a method in the prior art that will establish a dynamic connection between people participating in the activity and allow users to The resulting real-time feed is circulated in real-time among event participants and a method for allowing users to interact with other participating event participants.

In order to achieve the above object, the present invention provides a location-based service-based activity information aggregation search and interaction method, including the following steps:

(1) The server extracts the activity information and latitude and longitude information of multiple activity information publishing websites from the Internet, and stores them on the data server.

(2) The client collects the characteristic information of user interest activities, and requests activity information from the server according to the collected characteristic information of user interest activities;

(3) The server accesses the data server according to the characteristic information of the user's interests and activities to perform distance processing, timeliness processing and sorting processing of the activity information, and returns the processed activity information to the client after the processing is completed;

(4) The client displays the processed activity information to the user, and establishes the association between the user and some activities according to the user's choice; specifically, while viewing the activity message, the user passes the provided "participation" An action sends a request to the server. According to the unique user ID and activity unique ID carried in the request, the server adds the user to the participant list of the corresponding activity, and adds the corresponding activity to the user's participating activity list;

(5) The client obtains the list of activities that the user participated in and the list of all participants of the corresponding activities from the server, stores them locally, and updates them at intervals;

(6) The client provides an interactive interface to allow users to participate in the interactive operations of established associated activities, including viewing the list of activities that the user has participated in and the list of participants in the corresponding activities, publishing and obtaining the activities of participating users aggregated by the topic of the activity in real time Topic messages, establish contact with users who participate in common activities and send user interaction messages to each other.

In step (1), the event information is first extracted from multiple event information publishing websites, and the location information in the event information is used for network address resolution to obtain the latitude and longitude information, and then the event information and latitude and longitude information are aggregated, and the information is used as data The source is stored on the data server, and the event information specifically includes one or more of the following: event name, event time, event location, event fee, event type, event organizer, event details, and original page link;

In the process of extracting activity information from multiple information publishing websites, the automatic extraction technology of activity publishing websites is adopted. The realization process is as follows: a unified activity information extraction model is established according to the extracted activity information fields, and then according to the activity information extraction model Analyze the location characteristics of the fields in the DOM tree of each event information publishing website, write specific extraction rules to complete the information extraction on different event information publishing websites, and use the location information in the event information to network for address resolution. , extract the location information from the event information as a parameter, and initiate a request to the address resolution database provided by the network through the URL to obtain the corresponding latitude and longitude.

Step (2) includes the following sub-steps:

(2-1) Determine whether the current location, the designated point on the map, or the designated point of the input place name is used as the reference point of the geographical scope of the interest activity; if the current location is used as the reference point of the geographical scope of the interest activity, then enter step (2-2), if If the designated point on the map is used as the reference point of the geographic scope of the activity of interest, proceed to step (2-3); if the designated point of the input place name is used as the reference point of the geographical scope of the activity of interest, proceed to step (2-4);

(2-2) Through the map positioning function, call GPS to obtain the latitude and longitude of the current location, and then enter step (2-5);

(2-3) Through the interactive operation on the map, select a point on the map and obtain its latitude and longitude, and then enter step (2-5);

(2-4) Use the place name as a parameter, and initiate a request to the address resolution database provided by the network through the URL to obtain the corresponding latitude and longitude, and then enter step (2-5);

(2-5) Obtain geographic range, time range information, and sorting methods from users, and the sorting methods include distance priority and time priority.

Step (3) includes the following sub-steps:

(3-1) Extract the latitude and longitude information and range information of the reference point of the geographical range of the interest activity to determine the latitude and longitude range of the interest activity, and determine the time range of the interest activity based on the time range information;

(3-2) Find the corresponding activity information in the data server according to the latitude and longitude range and time range;

(3-3) Obtain the distance between the longitude and latitude information corresponding to the found activity information and the reference point of the geographical range of the interest activity, and add the information of the distance to the activity information;

(3-4) Determine whether to sort the found activity information based on the characteristic information of the user’s interests and activities: time priority or distance priority. If it is time priority, go to step (3-5), otherwise go to step (3-6 );

(3-5) Sort the found event information according to the event holding time in the event information, and then proceed to step (3-7);

(3-6) Sort the found activity information in ascending order according to the distance obtained in step (3-3);

(3-7) Return the sorted activity information to the user.

The activity topic message in step (6) specifically includes: message content, activity information associated with the message topic, posting user information, posting time, posting location, and distance information between the posting location and the event location. User interaction messages specifically include: message content, common Participating event information, posting users, posting time, posting location, and the distance between the posting location and the event location.

Real-time publication and acquisition of activity topic messages of participating users aggregated with activity as a topic include the following sub-steps:

(6-1-1) The client obtains the dynamic news published by the user and sends it to the server. The implementation process is that the client obtains the content of the message input by the user, obtains the unique identifier of the activity selected by the user from the locally stored participation activity list, and calls the map positioning function to obtain the latitude and longitude of the current publishing location, together with the unique identifier of the publishing user, sends to the server;

(6-1-2) The server processes the submission message, forms an activity topic message entry, and puts it into the message queue of all users participating in the activity, including the following sub-steps:

(6-1-2-1) According to the longitude and latitude of the user’s published location in the message as a parameter, and initiate a request to the anti-geocoding database provided by the network through the URL to obtain the corresponding location information;

(6-1-2-2) Obtain activity information in the data server according to the unique identifier of the activity in the message. Extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message;

(6-1-2-3) Add posting time information, together with message content, event information associated with the message topic, posting time, posting location, distance information between posting location and event location, and posting user information, to form an event topic message entry;

(6-1-2-4) According to the activity unique identifier of the activity message and the list of participating users of the activity maintained by the server, put the message entries forming the activity topic into the message queues of all users participating in the activity;

(6-1-3) Push the message in the user message queue to the corresponding user's client, the client receives the message, stores it locally, and displays the message. Further, the client classifies and aggregates the locally stored activity topic messages according to the unique identifier of the activity selected by the user from the locally stored activity list.

Establishing contact with users participating in common activities and sending user interaction messages to each other includes the following sub-steps:

(6-2-1) The client obtains the dynamic message published by the user and is associated with the interactive target user, and sends it to the server. The implementation process is that the client obtains the content of the message input by the user, obtains the unique identifier of the interactive target user selected by the user from the locally stored participation activity list and the corresponding participant list, and the unique identifier of the joint participation activity, and calls the map positioning function Obtain the latitude and longitude of the current publishing location, and send it to the server together with the unique identifier of the publishing user;

(6-2-2) The server processes the submission message, forms a user interaction message entry, and puts it into the target user message queue, including the following sub-steps:

(6-2-2-1) According to the longitude and latitude of the user's posting location in the message as a parameter, and initiate a request to the anti-geocoding database provided by the network through the URL to obtain the corresponding posting location information;

(6-2-2-2) Obtain activity information in the data server according to the unique identifier of the activity in the message. Extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message;

(6-2-2-3) Add posting time information, together with message content, jointly participated event information, posting location, posting location distance information from event location, and posting user information, to form a user interaction message entry;

(6-2-2-4) According to the unique identifier of the target user in the submitted message, put the message item that forms the user interaction into the message queue of the target user;

(6-2-3) Push the message in the message queue of the target user to the user client, and the target user client receives the interactive message, stores it locally, and displays the message;

(6-2-4) The target client obtains the feedback interaction dynamic message published by the user according to the unique identifier of the user published in the interaction message and is associated with the interaction target user of the feedback interaction dynamic message, sends it to the server, and then enters the step (6-2- 2).

A location-based service-based activity information aggregation search and interaction system, including the following modules:

The storage module is used for the server to extract activity information and longitude and latitude information of multiple activity information publishing websites from the Internet, and store them on the data server.

The request module is used for the client to collect user interest activity characteristic information, and request activity information from the server according to the collected user interest activity characteristic information;

The processing module is used for the server to access the data server according to the user's interest and activity feature information to perform activity information distance processing, timeliness processing and sorting processing, and return the processed activity information to the client after the processing is completed;

The association module is used for the client to display the processed activity information to the user, and establish the association between the user and some activities according to the user's selection;

The obtaining module is used for the client to obtain the list of activities participated by the user and the list of all participants of the corresponding activities from the server, store them locally, and update them at intervals;

The interactive module is used for the client to provide an interactive interface to allow users to participate in the interactive operations of established associated activities, including viewing the list of activities that the user has participated in and the list of participants of the corresponding activities, publishing in real time and obtaining participating users aggregated by the topic of the activity Active topic news, establish contact with users who participate in common activities and send user interactive messages to each other.

Through the above technical solutions conceived by the present invention, compared with the prior art, the present invention has the following beneficial effects:

1. Improve accuracy and timeliness and reduce user search costs: In response to the needs of users who want to know what activities are or will be held around them or around specific places, combined with the large amount of information, scattered geographical distribution, strong timeliness and strong Message characteristics such as geographic relevance. The present invention adopts step (1) to capture aggregated activity information and longitude and latitude information activities, step (2) the user activity interest characteristic information dynamically collected by the client, and step (3) to perform activity information distance processing and timeliness processing according to the activity interest characteristic information And sorting processing, returning the interest activity information sorted by preferences within the specific location and time limit that the user cares about. Compared with the existing general search engine or event information publishing website keyword search and classification browsing methods, the accuracy and timeliness of the obtained event information are improved, and the search cost of users, especially mobile users, is reduced.

2. The activity interaction technical scheme is proposed, which meets the strong real-time interaction requirements of the activity: the invention proposes the activity interaction technical scheme, adopts step (4) to establish the association between the participants and the activity, and step (5) obtains the user association The list of participating activities and the corresponding list of other participating users, step (6) provides an interactive interface to allow users to participate in the interactive operations of the established associated activities: view the list of participating activities and the list of participants of the corresponding activities, publish and obtain activities in real time Dynamic messages of participating users aggregated for topics, establish contact with users participating in common activities and send dynamic messages to each other. The present invention solves the problems of establishing a dynamic connection between people participating in an activity, allowing real-time dynamic messages generated by users to circulate among activity participants in real time, and allowing users to send messages and interact with other participants participating in the activity. Strong real-time interaction requirements for activities.

Description of drawings

FIG. 1 is a flow chart of the location-based service-based activity information aggregation search and interaction method of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the location service-based activity information aggregation search and interaction method of the present invention includes the following steps:

(1) The server extracts the activity information and latitude and longitude information of multiple activity information publishing websites from the Internet, and stores them on the data server.

Specifically, in this step, activity information is first extracted from multiple activity information publishing websites, and the location information in the activity information is used for network address resolution to obtain longitude and latitude information, and then the activity information and longitude and latitude information are aggregated to obtain the information Stored on the data server as a data source.

The above event information specifically includes one or more of the following: event name, event time, event location, event fee, event type, event organizer, event details, and original page link.

Further, each piece of activity information will be assigned a unique identifier as the unique identifier of the activity.

In the process of extracting activity information from multiple information publishing websites, the automatic extraction technology of activity publishing websites is adopted. The realization process is as follows: a unified activity information extraction model is established according to the extracted activity information fields, and then according to the activity information extraction model Analyze the location characteristics of the fields in the DOM tree of each activity information publishing website, and write specific extraction rules to complete the information extraction on different activity information publishing websites.

In the process of using the location information in the activity information to network for address resolution, the location information is extracted from the activity information as a parameter, and a request is made to the address resolution database provided by the network through the Uniform Resource Locator (URL) to obtain corresponding to latitude and longitude.

(2) The client collects the characteristic information of user interest activities, and requests activity information from the server according to the collected characteristic information of user interest activities;

This step includes the following sub-steps:

(2-1) Determine whether the current location, the designated point on the map, or the designated point of the input place name is used as the reference point of the geographical scope of the interest activity; if the current location is used as the reference point of the geographical scope of the interest activity, then enter step (2-2), if If the designated point on the map is used as the reference point of the geographic scope of the activity of interest, proceed to step (2-3); if the designated point of the input place name is used as the reference point of the geographical scope of the activity of interest, proceed to step (2-4);

(2-2) Through the map positioning function, call the Global positioning system (Global positioning system, referred to as GPS) to obtain the latitude and longitude of the current location, and then enter step (2-5);

(2-3) Through the interactive operation on the map, select a point on the map and obtain its latitude and longitude, and then enter step (2-5);

(2-4) Use the place name as a parameter, and initiate a request to the address resolution database provided by the network through the URL to obtain the corresponding latitude and longitude, and then enter step (2-5);

(2-5) Obtain geographic range, time range information, and sorting methods from users; sorting methods include distance priority and time priority.

(3) The server accesses the data server according to the characteristic information of the user's interests and activities to perform distance processing, timeliness processing and sorting processing of the activity information, and returns the processed activity information to the client after the processing is completed;

This step specifically includes the following sub-steps:

(3-1) Extract the latitude and longitude information and range information of the reference point of the geographical range of the interest activity to determine the latitude and longitude range of the interest activity, and determine the time range of the interest activity based on the time range information;

(3-2) Find the corresponding activity information in the data server according to the latitude and longitude range and time range;

(3-3) Obtain the distance between the longitude and latitude information corresponding to the found activity information and the reference point of the geographical range of the interest activity, and add the information of the distance to the activity information;

(3-4) Determine whether to sort the found activity information based on the characteristic information of the user’s interests and activities: time priority or distance priority. If it is time priority, go to step (3-5), otherwise go to step (3-6 );

(3-5) Sort the found event information according to the event holding time in the event information, and then proceed to step (3-7);

(3-6) Sort the found activity information in ascending order according to the distance obtained in step (3-3);

(3-7) Return the sorted activity information to the user.

(4) The client displays the processed activity information to the user, and establishes the association between the user and some activities according to the user's choice; specifically, while viewing the activity message, the user passes the provided "participation" An action sends a request to the server. According to the unique user identifier and the unique activity identifier carried in the request, the server adds the user to the participant list of the corresponding activity, and adds the corresponding activity to the user's participating activity list.

(5) The client obtains the list of activities that the user participated in and the list of all participants of the corresponding activities from the server, stores them locally, and updates them at intervals. In this embodiment, the value range of the time interval is 5 minutes to 1 hour.

Specifically, when loading for the first time, the client requests the server for the list of activities that the user participates in and the corresponding list of activity participants, and the user bases and stores them locally. After that, the client will request the server to check for updates at intervals, and if there is an update, the receiving server will return the latest data and update the locally stored data.

(6) The client provides an interactive interface to allow users to participate in the interactive operations of established associated activities, including viewing the list of activities that the user has participated in and the list of participants in the corresponding activities, publishing and obtaining the activities of participating users aggregated by the topic of the activity in real time Topic messages, establish contact with users who participate in common activities and send user interaction messages to each other.

The above activity topic message specifically includes: message content, activity information associated with the message topic, posting user information, posting time, posting location, and distance information between posting location and event location. The above-mentioned user interaction message specifically includes: message content, information on the activities that are jointly participated in, the user who posted it, the time of posting, the posting location, and the distance between the posting location and the event location.

The following sub-steps are included in the process of real-time publication and acquisition of activity topic messages of participating users aggregated with activities as topics:

(6-1-1) The client obtains the dynamic news published by the user and sends it to the server. The implementation process is that the client obtains the content of the message input by the user, obtains the unique identifier of the activity selected by the user from the locally stored participation activity list, and calls the map positioning function to obtain the latitude and longitude of the current publishing location, together with the unique identifier of the publishing user, sends to the server;

(6-1-2) The server processes the submission message, forms an activity topic message entry, and puts it into the message queue of all users participating in the activity;

This step includes the following sub-steps:

(6-1-2-1) According to the longitude and latitude of the user's published location in the message as a parameter, and initiate a request to the anti-address resolution database provided by the network through the URL to obtain the corresponding location information;

(6-1-2-2) Obtain activity information in the data server according to the unique identifier of the activity in the message. Extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message;

(6-1-2-3) Add posting time information, together with message content, event information associated with the message topic, posting time, posting location, distance information between posting location and event location, and posting user information, to form an event topic message entry;

(6-1-2-4) According to the activity unique identifier of the activity message and the list of participating users of the activity maintained by the server, put the message entries forming the activity topic into the message queues of all users participating in the activity;

(6-1-3) Push the message in the user message queue to the corresponding user's client, the client receives the message, stores it locally, and displays the message. Further, the client classifies and aggregates the locally stored activity topic messages according to the unique identifier of the activity selected by the user from the locally stored activity list.

In the process of establishing contact with users participating in common activities and sending user interaction messages to each other, the following sub-steps are included:

(6-2-1) The client obtains the dynamic message published by the user and is associated with the interactive target user, and sends it to the server. The implementation process is that the client obtains the content of the message input by the user, obtains the unique identifier of the interactive target user selected by the user from the locally stored participation activity list and the corresponding participant list, and the unique identifier of the joint participation activity, and calls the map positioning function Obtain the latitude and longitude of the current publishing location, and send it to the server together with the unique identifier of the publishing user;

(6-2-2) The server processes the submission message, forms a user interaction message entry, and puts it into the target user message queue;

This step includes the following sub-steps:

(6-2-2-1) According to the longitude and latitude of the user's posting location in the message as a parameter, and initiate a request to the anti-geocoding database provided by the network through the URL to obtain the corresponding posting location information;

(6-2-2-2) Obtain activity information in the data server according to the unique identifier of the activity in the message. Extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message;

(6-2-2-3) Add posting time information, together with message content, jointly participated event information, posting location, posting location distance information from event location, and posting user information, to form a user interaction message entry;

(6-2-2-4) According to the unique identifier of the target user in the submitted message, put the message item that forms the user interaction into the message queue of the target user;

(6-2-3) Push the message in the message queue of the target user to the user client, and the target user client receives the interactive message, stores it locally, and displays the message;

(6-2-4) The target client obtains the feedback interaction dynamic message published by the user according to the unique identifier of the user published in the interaction message and is associated with the interaction target user of the feedback interaction dynamic message, sends it to the server, and then enters the step (6-2- 2).

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (7)

1. A method for aggregated search and interaction of activity information based on location services, comprising the following steps: (1) The server extracts the activity information and longitude and latitude information of multiple activity information publishing websites from the Internet, and stores them on the data server; specifically, first extracts activity information from multiple activity information publishing websites, and uses the location in the activity information Information networking for address resolution to obtain latitude and longitude information, then aggregate event information and latitude and longitude information, and store this information as a data source on the data server; event information specifically includes one or more of the following: event name, event holding time , activity location, activity fee, activity type, activity organizer, activity details, and original page link; in the process of extracting activity information from multiple information publishing websites, the automatic extraction technology of activity publishing websites is adopted, and the implementation process is as follows: Establish a unified activity information extraction model based on the extracted activity information fields, and then write specific extraction rules according to the position characteristics of the analysis fields of the activity information extraction model in the DOM tree of each activity information publishing website to complete different activities. Information extraction from the information publishing website; in the process of using the location information in the event information to network for address resolution, extract the location information from the event information as a parameter, and initiate a request to the address resolution database provided by the network through the URL to obtain the corresponding latitude and longitude; (2) The client collects the characteristic information of user interest activities, and requests activity information from the server according to the collected user interest activity characteristic information; (3) The server accesses the data server according to the characteristic information of the user's interest and activity to perform distance processing, timeliness processing and sorting processing of the activity information, and returns the processed activity information to the client after the processing is completed; (4) The client side displays the processed activity information to the user, and establishes the association between the user and some activities according to the user's choice; specifically, the user checks the activity message and, through the provided "participation" The operation sends a request to the server, and the server adds the user to the participant list of the corresponding activity according to the unique user ID and activity unique ID carried in the request, and adds the corresponding activity to the user's participating activity list; (5) The client obtains the list of activities that the user participates in and the list of all participants of the corresponding activities from the server, stores them locally, and updates them at intervals; (6) The client provides an interactive interface to allow users to participate in the interactive operations of established associated activities, including viewing the list of activities that the user has participated in and the list of participants in the corresponding activities, publishing and obtaining the activities of participating users aggregated by the topic of the activity in real time Topic messages, establish contact with users who participate in common activities and send user interaction messages to each other. 2. The activity information aggregation search and interaction method according to claim 1, characterized in that step (2) comprises the following sub-steps: (2-1) Judging whether the current location, the designated point on the map, or the designated point of the input place name is used as the reference point of the geographic scope of the activity of interest; if the current location is used as the reference point of the geographic scope of the activity of interest, then enter step (2-2), if Use the designated point on the map as the reference point of the geographical scope of the interest activity, then enter step (2-3), if use the designated point of the input place name as the reference point of the geographical scope of the interest activity, then enter step (2-4); (2-2) Call the GPS to obtain the latitude and longitude of the current position through the map positioning function, and then enter step (2-5); (2-3) By interactively operating the map, select a point on the map and obtain its latitude and longitude, and then enter step (2-5); (2-4) place name is used as parameter, and initiates a request to the address resolution database that network provides by URL, to obtain corresponding longitude and latitude, then enter step (2-5); (2-5) Acquiring geographic range, time range information, and sorting methods from the user, where the sorting methods include distance priority and time priority. 3. The activity information aggregation search and interaction method according to claim 1, wherein step (3) comprises the following sub-steps: (3-1) Extracting the latitude and longitude information and range information of the reference point of the geographical range of the interest activity to determine the latitude and longitude range of the interest activity, and determine the time range of the interest activity based on the time range information; (3-2) Find the corresponding activity information in the data server according to the latitude and longitude range and time range; (3-3) Obtain the distance between the longitude and latitude information corresponding to the found activity information and the reference point of the geographical range of the interest activity, and add the information of the distance to the activity information; (3-4) According to the characteristic information of user interest activities, it is judged whether the method of sorting the found activity information is time priority or distance priority. If it is time priority, then enter step (3-5), otherwise enter step (3-6) ); (3-5) sort the found event information according to the event holding time in the event information, and then proceed to step (3-7); (3-6) sorting the found activity information according to the distance obtained in step (3-3) in ascending order; (3-7) Return the sorted activity information to the user. 4. The activity information aggregation search and interaction method according to claim 1, characterized in that the activity topic message in step (6) specifically includes: message content, activity information associated with the message topic, posting user information, posting time, Information about the posting location and the distance between the posting location and the event location. User interaction messages specifically include: message content, information on activities they have participated in together, posting user, posting time, posting location, and information on the distance between the posting location and the event location. 5. The activity information aggregation search and interaction method according to claim 1, characterized in that, real-time publication and acquisition of activity topic messages of participating users with activity as topic aggregation includes the following sub-steps: (6-1-1) The client obtains the dynamic message published by the user and sends it to the server. The implementation process is that the client obtains the content of the message input by the user, and obtains the unique identifier of the activity selected by the user from the locally stored participation activity list , and call the map positioning function to obtain the latitude and longitude of the current publishing location, and send it to the server together with the unique identifier of the publishing user; (6-1-2) The server processes the submission message, forms an activity topic message entry, and puts it into the message queue of all users participating in the activity, including the following sub-steps: (6-1-2-1) According to the longitude and latitude of the user's published location in the message as a parameter, and initiate a request to the anti-geocoding database provided by the network through the URL to obtain the corresponding location information; (6-1-2-2) Obtain event information in the data server according to the unique identifier of the event in the message, extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message; (6-1-2-3) Add posting time information, together with message content, event information associated with message topic, posting time, posting location, distance information between posting location and event location, and posting user information, to form an active topic message entry; (6-1-2-4) According to the activity unique identifier of the activity message and the list of participating users of the activity maintained by the server, put the message entries forming the activity topic into the message queues of all users participating in the activity; (6-1-3) Push the message in the user's message queue to the corresponding user's client. The client receives the message, stores it locally, and displays the message. Further, the client selects the activity from the activity list stored locally according to the user. The unique identifier of , which classifies and aggregates the locally stored active topic messages. 6. The activity information aggregation search and interaction method according to claim 1, characterized in that establishing contact with users participating in common activities and sending user interaction messages to each other includes the following sub-steps: (6-2-1) The client obtains the dynamic message published by the user that is associated with the target user of the interaction, and sends it to the server. The unique identifier of the interactive target user selected in the participant list and the unique identifier of the co-participating activity, as well as the latitude and longitude of the current publishing location obtained by calling the map positioning function, and sent to the server together with the unique identifier of the publishing user; (6-2-2) The server processes the submission message, forms a user interaction message entry, and puts it into the target user message queue, including the following sub-steps: (6-2-2-1) According to the longitude and latitude of the user's posting location in the message as a parameter, and initiate a request to the anti-geocoding database provided by the network through the URL, to obtain the corresponding posting location information; (6-2-2-2) Obtain event information in the data server according to the unique identifier of the event in the message, extract the latitude and longitude information in the event information, and calculate the distance information between the posting location and the event location in combination with the latitude and longitude of the posting location in the message; (6-2-2-3) Add posting time information, together with message content, jointly participated event information, posting location, posting location distance information from the event location, and posting user information, to form a user interaction message entry; (6-2-2-4) According to the unique identifier of the target user in the submitted message, put the message item forming the user interaction into the message queue of the target user; (6-2-3) Push the message in the message queue of the target user to the user client, and the target user client receives the interactive message, stores it locally, and displays the message; (6-2-4) The target client obtains the feedback interaction dynamic message published by the user according to the unique identifier of the user published in the interaction message and is associated with the interaction target user of the feedback interaction dynamic message, sends it to the server, and then enters the step (6-2- 2). 7. A location-based service-based activity information aggregation search and interaction system, characterized in that it includes the following modules: The storage module is used for the server to extract the activity information and longitude and latitude information of multiple activity information publishing websites from the Internet, and store them on the data server; specifically, firstly extract the activity information from the multiple activity information publishing websites, and use the activity information Address analysis of location information networked to obtain latitude and longitude information, then aggregate activity information and latitude and longitude information, and store this information as a data source on the data server; activity information specifically includes one or more of the following: activity name, activity Time, event location, event fee, event type, event organizer, event details, and original page links; in the process of extracting event information from multiple information publishing websites, the automatic extraction technology of event publishing websites is adopted, and the implementation process In order to: establish a unified activity information extraction model according to the extracted activity information fields, and then write specific extraction rules according to the position characteristics of the analysis fields of the activity information extraction model in the DOM tree of each activity information publishing website, so as to complete the Information extraction from different event information publishing websites; in the process of using the location information in the event information to network for address resolution, the location information is extracted from the event information as a parameter, and a request is made to the address resolution database provided by the network through the URL to obtain the corresponding latitude and longitude; The request module is used for the client to collect user interest activity characteristic information, and request activity information from the server according to the collected user interest activity characteristic information; The processing module is used for the server to access the data server according to the user's interest and activity feature information to perform activity information distance processing, timeliness processing and sorting processing, and return the processed activity information to the client after the processing is completed; The association module is used for the client to display the processed activity information to the user, and establish the association between the user and some activities according to the user's selection; The obtaining module is used for the client to obtain the list of activities participated by the user and the list of all participants of the corresponding activities from the server, store them locally, and update them at intervals; The interactive module is used for the client to provide an interactive interface to allow users to participate in the interactive operations of established associated activities, including viewing the list of activities that the user has participated in and the list of participants of the corresponding activities, publishing in real time and obtaining participating users aggregated by the topic of the activity Active topic news, establish contact with users who participate in common activities and send user interactive messages to each other.