JP7741514B2 - Real estate information collection system, program and method - Google Patents

Description

The present invention relates to a real estate information collection system, program, and method for collecting information materials, such as real estate information, distributed across the Internet.

The real estate industry is said to be an information industry, and traditionally, when real estate company sales representatives wanted to search for information on land, buildings, and other real estate properties, they had to check the portal sites of multiple companies that provide real estate information one by one (Patent Document 1). Information on real estate sales, in particular, was monopolized by certain real estate organizations, making it difficult for individual customers to gather information. While private real estate information sites are also operated, information is dispersed among multiple companies, making it necessary to visit several companies' sites to obtain accurate information. Furthermore, the search criteria input differs depending on the site, making the process cumbersome and making it difficult to obtain accurate information. Furthermore, the adoption of IT in Japan's real estate industry is said to lag behind that of other countries, and this is thought to hinder the liquidity of assets in Japan.

Japanese Patent Application Laid-Open No. 2020-170210

However, conventional information gathering methods, including the system disclosed in Patent Document 1 mentioned above, involve manually searching the portal sites of multiple real estate information providers. However, because real estate information is constantly updated, searches can be missed depending on the timing of the search. When the desired property cannot be found or to find information that better meets the search criteria, it is necessary to repeat the same search operations again after a few hours have passed.

The present invention has been made in light of the above points, and its objective is to provide a real estate information collection system, program, and method that centralizes and consolidates real estate sales information that is distributed across the Internet and updated constantly, reducing the tedious work involved in complex information searches, improving information gathering capabilities, and enabling advice and speeding up decision-making when buying and selling.

In order to solve the above problems, the present invention provides a real estate document collection system that collects real estate-related information data distributed over a communication network constructed by interconnecting communication lines, the system comprising: a search condition setting unit that sets search conditions based on user operation; an information data collection unit that patrols the communication network in accordance with the search conditions set by the search condition setting unit and collects information data corresponding to the search conditions; an extraction keyword database that stores extraction keywords for extracting predetermined information from the information data; an information extraction unit that searches the extraction keyword database and extracts data corresponding to the extraction keywords from the information data as extracted data, associating the data with an information acquisition source and the extraction keywords; a search result storage unit that associates the search conditions with the extracted data extracted by the information extraction unit and stores them; a patrol control unit that selects search conditions that match the trigger conditions in accordance with predetermined trigger conditions, and causes the information data collection unit to patrol and re-collect information data corresponding to the selected search conditions; and an information presentation unit that presents arbitrarily selected information data, or information data included in the extracted data when there is a plurality of extracted data, in a comparable manner. The information data collection unit has a link analysis unit that analyzes link information included in the information data, and an access control unit that follows the analyzed link information to transition between the information data, and collects information data . The search condition setting unit sets trigger conditions as part of the search conditions based on user operation. The trigger conditions include the date and time or time period for executing the patrol process, and the timing or method of notification. The patrol control unit selects search conditions that match the trigger conditions according to the predetermined trigger conditions set in the search condition setting unit, and causes the information data collection unit to perform a patrol and recollect information data corresponding to the selected search conditions.

The present invention also provides a real estate information collection method for collecting real estate-related information data distributed over a communication network constructed by interconnecting communication lines, comprising:
(1) an information data collection step in which a search condition setting unit accepts settings of search conditions based on a user operation, and an information data collection unit circulates on a communication network according to the search conditions set by the search condition setting unit to collect information data corresponding to the search conditions;
(2) an information extraction step of storing extraction keywords for extracting predetermined information from information data in an extraction keyword database, and an information extraction unit searching the extraction keyword database to extract data corresponding to the extraction keywords from the information data in association with the information acquisition source and the extraction keywords, and storing the extracted data extracted by the information extraction unit in a search result storage unit in association with the search conditions;
(3) a cyclic control step in which the cyclic control unit selects search conditions that match the trigger conditions according to predetermined trigger conditions, and causes the information data collection unit to cyclically collect information data corresponding to the selected search conditions;
(4) a notification step in which an extracted data comparison unit compares the re-extracted data extracted from the re-collected information data with the extracted data stored in the search result storage unit to determine whether or not there is difference information, and generates and notifies presentation information for displaying the difference between the re-extracted data and the extracted data based on the comparison result by the extracted data comparison unit if there is difference information;
(5) an information presenting step in which an information presenting unit presents arbitrarily selected information data or, in the case where there are a plurality of pieces of extracted data, information data included in the extracted data in a comparative manner;
In the information data collecting step, the information data collecting unit analyzes link information included in the information data, and collects the information data by following the analyzed link information and transitioning between the information data ;
In the information data collecting step, the search condition setting unit sets the trigger condition as part of the search condition based on the user operation,
The trigger conditions include the date and time or time period when the patrol process is to be performed, the timing of notification, or the method of notification;
In the cyclic control step, the cyclic control unit selects search conditions that match the specified trigger conditions set in the search condition setting unit, and causes the information data collection unit to perform a cyclical search and re-collect information data corresponding to the selected search conditions.

In the above invention, the search condition setting unit sets trigger conditions as part of the search conditions based on user operation, and the trigger conditions include the date and time or time period for executing the patrol process, the timing of notification, or the method of notification, and it is preferable that the patrol control unit selects search conditions that match the trigger conditions in accordance with the specified trigger conditions set in the search condition setting unit, and causes the information data collection unit to perform a patrol and re-collect information data corresponding to the selected search conditions .

The real estate document collection system and real estate document collection method according to the present invention can be realized by executing the real estate document collection program of the present invention, written in a specific language, on a computer. In other words, by installing the program of the present invention on an IC chip or memory device of a portable terminal device, smartphone, wearable terminal, mobile PC or other information processing terminal, or a general-purpose computer such as a personal computer or server computer, and executing it on the CPU, a system having the above-mentioned functions can be constructed and the method according to the present invention can be implemented.

The real estate information collection program of the present invention can be distributed, for example, via communications lines, and can be transferred as a package application that runs on a standalone computer by recording it on a computer-readable recording medium. This recording medium can be recorded on a variety of recording media, including magnetic recording media such as flexible disks and cassette tapes, optical disks such as CD-ROMs and DVD-ROMs, and RAM cards. Furthermore, a computer-readable recording medium on which this program is recorded makes it possible to easily implement the above-described system and method using a general-purpose computer or a dedicated computer, and also makes it easy to store, transport, and install the program.

As explained above, according to the present invention, real estate information distributed via a communication network such as the Internet can be automatically collected, and constantly updated real estate information is automatically circulated. When new information appears, a pop-up or other notification is provided, allowing the user to easily access the desired property information and eliminating the need to repeatedly perform the same search. As a result, this embodiment unifies and aggregates constantly updated real estate sales and purchase information on the Internet, reducing the cumbersome work involved in complex information searches, improving information gathering capabilities, and enabling advice and decision-making to be speeded up when buying and selling.

1 is an explanatory diagram showing a schematic configuration of a real estate information collection system according to an embodiment; FIG. 2 is a block diagram showing the internal configuration of an information management server 2 according to the embodiment. FIG. 2 is a flow chart showing the operation of the real estate information collection system according to the embodiment. 10 is a flowchart showing the operation of the patrol and notification process in the real estate document collection system according to the embodiment. FIG.

(Configuration of real estate information collection system)
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 is an explanatory diagram showing a schematic configuration of a real estate information collection system according to the present embodiment.

As shown in the figure, the real estate information collection system according to this embodiment comprises a terminal device 1a used by a user, the Internet 3, web servers 41-43 distributed across the Internet 3, and an information management server 2 accessible by the terminal device 1a via the Internet 3. In this embodiment, the information data distributed over the Internet 3 is an HTML file containing information related to real estate sales and purchases.

The terminal device 1a is a device equipped with a processing unit such as a CPU and a communications device, and can be realized by a general-purpose computer such as a personal computer, or a dedicated device with specialized functions, including a mobile computer, a PDA (Personal Digital Assistance), or a mobile phone.

The Internet 3 is a distributed communications network constructed by interconnecting various communications lines (public lines such as telephone lines, ISDN lines, and ADSL lines, dedicated lines, and wireless communications networks) using the communications protocol TCP/IP, and includes LANs such as intranets (corporate networks) and home networks using 10BASE-T or 100BASE-TX.

Web servers 41-43 are distribution servers operated, for example, by real estate agents, and are implemented as communications servers or software with that functionality that transmit information such as HTML (HyperText Markup Language) files, image files, and music files in document systems such as the World Wide Web (WWW). They store information such as HTML documents and images, and provide information services such as the distribution of real estate information over the Internet 3 in response to requests from client software such as a web browser running on terminal device 1a.

Like the web servers 41-43, the information management server 2 is a communications server or software with that functionality that transmits information such as HTML (HyperText Markup Language) files, image and video files, and music and audio files in document systems such as the WWW (World Wide Web). The information management server 2 also has the function of patrolling the Internet 3 using a crawling robot, collecting real estate information from the web servers 41-43, and providing a real estate information search service. Figure 2(a) is a block diagram showing the internal configuration of the information management server 2.

Specifically, the information management server 2 includes a data transmitting/receiving unit 22, which is a communication module, and an information data collecting unit 21, which is a data collecting module.
The data transmitting/receiving unit 22 is a communication device that is connected to the Internet 3 and transmits and receives IP packets via the Internet 3. This data transmitting/receiving unit 22 accesses the addresses (URLs or IP addresses) of the web servers 41 to 43, etc., specified by the cyclic control unit 21a, downloads HTML files, etc., and outputs them to the information data collecting unit 21. The data transmitting/receiving unit 22 also transmits and receives information to the terminal device 1a used by the user 1 via the information presenting unit 27.

The information data collection unit 21 is a module that collects information data such as HTML distributed across the Internet 3 via the data transmission/reception unit 22, and patrols the Internet 3 to collect specified information data based on search conditions passed from the search condition setting unit 28. This information data collection unit 21 includes a link analysis unit 21b and a tag analysis unit 21c, and is connected to the patrol control unit 21a, the search condition setting unit 28, and the address database 51, and is configured to patrol the Internet 3 and access each piece of information.

The tag analysis unit 21c is a module that analyzes tags (markup) in the HTML information data, classifies the text in the information data by attribute (link anchor, input form, table, etc.), and outputs the results to the keyword search unit 23 and link analysis unit 21b.

The link analysis unit 21b is a module that analyzes the link information analyzed by the tag analysis unit 21c, i.e., the "link anchors" contained in HTML tags, collects the addresses of related information data, and stores them in the address database 51.

The cyclic control unit 21a is a module that, in response to a predetermined trigger condition, causes the keyword search unit 23 to select search conditions that match the trigger condition, and causes the information data collection unit 21 to execute cyclic processing and re-collect information data corresponding to the selected search conditions. In doing so, the cyclic control unit 21a reads link information analyzed by the link analysis unit 21b and stored in the address database 51, outputs the read link destination to the data transmission/reception unit 22, and causes the data transmission/reception unit 22 to follow the links, transition between information data, and collect the information data.

The search condition setting unit 28 is a module that sets search conditions based on user operation. Specifically, when a user inputs the conditions for the property they wish to move into, the input conditions are passed to the information data collection unit 21 as search conditions and stored in the notification database 54. Based on the search conditions passed from the search condition setting unit 28, the information data collection unit 21 patrols the Internet 3 to collect specified information data. The search condition setting unit 28 is also capable of setting trigger conditions for patrol control as part of the search conditions. For example, if the desired property is not found, it is possible to set a specified date and time each day to patrol, and to set the notification method (pop-up, email delivery, etc.) when new information is found.

The information management server 2 also includes notification processing modules: a keyword search unit 23, an extracted data comparison unit 24, an information extraction unit 25, and a notification unit 26.

The keyword search unit 23 is a module that searches the extraction keyword database 52, which stores extraction keywords for extracting specified information from information data, in response to a request from the information extraction unit 25, and outputs the search results to the information extraction unit 25. These extraction keywords are used to extract character strings contained in text defined by tags (document layout, tables, lists, etc.) in the information data. In this embodiment, keywords for extracting real estate information include "real estate," "location," and "floor plan." These keywords may also be codes for identifying place names, for example.

The keyword search unit 23 may also be provided with an input history function that stores, for example, a history of strings entered for keyword searches for each user. This input history function can, for example, extract strings frequently entered by the user from the history and display them in an input text box (combo box) or the like, allowing them to be entered by selecting them, thereby assisting the user in their input work. Furthermore, for example, the history for each user may be made shareable among multiple users. In this case, search strings commonly used by many users can be preferentially displayed and selected for input, making it easy for even users who are unfamiliar with search operations to search for information.

The information extraction unit 25 is a module that extracts predetermined information from the information data in association with the information acquisition source and the above keywords, and stores the extracted information in the search result database 53. For example, the information obtained from the information data acquired from the Web server 41 is stored in the search result database 53 as table data such as the following, with each item and each content associated with each other.

The extracted data comparison unit 24 is a module that compares the re-extracted data extracted from the re-collected information data with the extracted data stored in the search result database 53, and passes the comparison results to the notification unit 26. The notification unit 26 is a module that notifies the difference between the re-extracted data and the extracted data based on the comparison results by the extracted data comparison unit 24. In this embodiment, if the re-extracted data contains a property that was not included in the search results collected in the previous search, it is notified that new information has been detected.

(Method of collecting real estate information)
The real estate brochure collection method of the present invention can be implemented by operating the real estate brochure collection system having the above configuration. Figures 3 and 4 are sequence diagrams showing the operation of the real estate brochure collection system according to this embodiment. Note that the processing procedure described below is merely an example, and each process may be modified as much as possible. Furthermore, steps in the processing procedure described below may be omitted, replaced, or added as appropriate depending on the embodiment.

First, the information data collection steps (S101 to S103) are performed. Specifically, in these information data collection steps, the search condition setting unit 28 accepts the setting of search conditions based on user operation, as well as the setting of trigger conditions, which are the conditions for the crawling process (S101). Then, in accordance with the set search conditions, the information data collection unit 21 crawls the Internet 3 in accordance with the search conditions set by the search condition setting unit 28, and collects information data corresponding to the search conditions (S102 and S103). Specifically, by crawling the Internet 3, information data is collected, for example, by downloading HTML data of web pages containing real estate information.

Next, an information extraction step (S104-S106) is performed on the collected information data. In this information extraction step, extraction keywords for extracting specific information from the information data are stored in the extraction keyword database 52. The information extraction unit 25 searches the extraction keyword database 52 and extracts data corresponding to the extraction keywords as extracted data from the information data, associating it with the information source and the extraction keywords. At this time, information extraction is performed on the collected information data through tag analysis and keyword search by the tag analysis unit 21c, and the extracted real estate information is stored in the search result database 53.

Specifically, the tags contained in the downloaded web page are analyzed (S104) and real estate information is extracted. This extracted real estate information includes items related to rental properties and properties for sale, and keywords for each item are searched for (S105), and attributes are assigned to each item for classification. Furthermore, because the layout and item arrangement of the extracted information are not standardized, it is converted into a template in a predetermined format (item sorting, title standardization, etc.), and the extracted data is stored in the search result database 53 in association with the search criteria.

Presented information is generated using the information data collected and extracted in this way (S107). Specifically, the collected real estate information is compiled by inputting data for each item into a predetermined template, converting it into a data format that can be viewed on the Web, and then making it available for viewing on the Internet 3, where it can be viewed by users with access rights (S108). User 1 can view the information by accessing the information management server 2 from terminal device 1a. At this time, if there is multiple arbitrarily selected information data or extracted data, the information data contained in the extracted data are presented so that they can be compared.

Next, the patrol control steps are executed as necessary (S109 and S110). In this embodiment, if the required information is not found in the above-mentioned information data collection steps (S101 to S103), the system periodically monitors updates to the information on the Internet until the required information is found. Specifically, it is determined whether notification processing is necessary (S109), and if necessary ("Y" in S109), the patrol and notification processing is executed (S110). If not necessary ("N" in S109), the system terminates without executing the patrol and notification processing (S111).

As shown in Figure 4, the patrol and notification process first references the trigger conditions. These trigger conditions may be those entered and set in step S101, or new input and settings may be accepted at this point. Specifically, the trigger conditions include the date, time, and time period for executing the patrol process, and the timing and method of notification. Whether or not to execute the patrol and notification process is then determined based on whether or not the trigger conditions are met (S202). For example, if a date and time for executing the patrol is set, it is determined whether that date and time has arrived, and when that date and time arrives ("Y" in S202), the trigger conditions are considered to be met and the patrol and notification process is executed. If that date and time have not arrived ("N" in S202), a loop process will enter a standby state until that time arrives.

If it is determined in step S202 that the trigger conditions are met, patrol control is performed (S203, S204). Specifically, the patrol control unit 21a selects search conditions that match the trigger conditions from the notification database 54 in accordance with the specified trigger conditions, and causes the information data collection unit 21 to patrol and re-collect information data corresponding to the selected search conditions (S205). In this patrol process, link information contained in the information data is analyzed, and the analyzed link information is followed to transition between the information data, thereby collecting the information data.

The information extraction unit 25 then extracts necessary information from this re-collected information data as re-extracted data (S206). The extracted data comparison unit 24 then compares the re-extracted data with the extracted data stored in the search result database 53 from the previous search (S207), and determines whether or not there is differential information based on the comparison results from the extracted data comparison unit 24 (S208).

If no difference information is found in step S208 ("N" in S208), the process returns to step S201 and repeats the processing from step S202 onwards. On the other hand, if difference information is found in step S208 ("Y" in S208), the process proceeds to step S209, where notification steps (S209 and S210) are executed to notify the difference between the re-extracted data and the extracted data.

Specifically, in step S209, presentation information is generated to display the difference between the re-extracted data and the extracted data, i.e., newly detected property information that has appeared on the Internet since the previous search. At this time, if there is multiple pieces of arbitrarily selected information data or extracted data, the information data included in the extracted data are presented so that they can be compared. Then, a process is executed to notify the user of this generated presentation information (S210). This notification process is carried out using a notification method set in the search condition setting unit 28, such as popping up a specified message on the screen of the user's PC or smartphone, or sending an email to a specified destination.

After the above patrol and notification process, a determination is made as to whether or not to terminate this notification process (S111). For example, if the user performs an end operation, the standby state of the notification process is canceled and the real estate document collection service is terminated ("Y" in S111). If the service is to continue ("N" in S111), the process returns to step S109 via loop processing, and the patrol continues again as needed for the notification process.

(Actions and effects of the real estate information collection system and real estate information collection method)
According to the real estate information collection system and real estate information collection method of this embodiment described above, first, the patrol robot automatically collects information data on the Internet 3, thereby eliminating the need to repeat the same operations and search again.

As a result, this embodiment makes it possible to automatically collect real estate information distributed via the Internet 3, and automatically circulates constantly updated real estate information, and when new information appears, is notified via a pop-up or other means, allowing for easy access to desired property information. This centralizes and consolidates constantly updated real estate sales and purchase information on the Internet, reduces the tedious work of complex information searches, improves information gathering capabilities, and enables advice and speeds up decision-making when buying and selling.

The present invention is not limited to the above-described embodiments, and the components can be modified and embodied in practice without departing from the spirit of the invention. Furthermore, various inventions can be created by appropriately combining multiple components disclosed in the above embodiments. For example, some components may be omitted from all of the components shown in the embodiments.

1...User 1a...Terminal device 2...Information management server 3...Internet 21...Information data collection unit 21a...Circulation control unit 21b...Link analysis unit 21c...Tag analysis unit 22...Data transmission/reception unit 23...Keyword search unit 24...Extracted data comparison unit 25...Information extraction unit 26...Notification unit 27...Information presentation unit 28...Search condition setting unit 41-43...Web server 51...Address database 52...Extraction keyword database 53...Search result database 54...Notification database

Claims (3)

A real estate information collection system that collects real estate-related information data distributed over a communication network constructed by interconnecting communication lines,
a search condition setting unit that sets search conditions based on user operations;
an information data collection unit that travels over the communication network in accordance with the search conditions set by the search condition setting unit and collects the information data corresponding to the search conditions;
an extraction keyword database that stores extraction keywords for extracting predetermined information from the information data;
an information extraction unit that searches the extraction keyword database and extracts data corresponding to the extraction keyword as extracted data from the information data in association with an information acquisition source and the extraction keyword;
a search result storage unit that stores the search conditions and the extracted data extracted by the information extraction unit in association with each other;
a patrol control unit that selects search conditions that match a predetermined trigger condition, and causes the information data collection unit to patrol and re-collect the information data corresponding to the selected search conditions;
an extracted data comparison unit that compares re-extracted data extracted from the re-collected information data with the extracted data stored in the search result storage unit and determines whether or not there is differential information;
a notification unit that generates presentation information for displaying a difference between the re-extracted data and the extracted data when the difference information is present based on a comparison result by the extracted data comparison unit, and notifies the user of the generated presentation information;
an information presentation unit that presents arbitrarily selected information data, or, in the case where there are a plurality of pieces of extracted data, information data included in the extracted data in a comparative manner;
The information data collection unit
a link analysis unit that analyzes link information included in the information data;
an access control unit that traces the analyzed link information and transitions between the information data to collect the information data ;
the search condition setting unit sets the trigger condition as part of the search condition based on the user operation;
The trigger conditions include the date and time or time period when the patrol process is to be performed, the timing of notification, or the method of notification;
The patrol control unit selects search conditions that match predetermined trigger conditions set by the search condition setting unit, and causes the information data collection unit to perform patrol and recollect information data corresponding to the selected search conditions.
A real estate information collection system characterized by: A real estate information collection program for collecting real estate-related information data distributed over a communication network constructed by interconnecting communication lines, comprising:
a search condition setting unit that sets search conditions based on user operations;
an information data collection unit that travels over the communication network in accordance with the search conditions set by the search condition setting unit and collects the information data corresponding to the search conditions;
an extraction keyword database that stores extraction keywords for extracting predetermined information from the information data;
an information extraction unit that searches the extraction keyword database and extracts data corresponding to the extraction keyword as extracted data from the information data in association with an information acquisition source and the extraction keyword;
a search result storage unit that stores the search conditions and the extracted data extracted by the information extraction unit in association with each other;
a patrol control unit that selects search conditions that match a predetermined trigger condition, and causes the information data collection unit to patrol and re-collect the information data corresponding to the selected search conditions;
an extracted data comparison unit that compares re-extracted data extracted from the re-collected information data with the extracted data stored in the search result storage unit and determines whether or not there is differential information;
a notification unit that generates presentation information for displaying a difference between the re-extracted data and the extracted data when the difference information is present based on a comparison result by the extracted data comparison unit, and notifies the user of the generated presentation information;
functioning as an information presentation unit that presents arbitrarily selected information data, or information data included in the extracted data when there are multiple pieces of extracted data, in a comparative manner;
The information data collection unit
a link analysis unit that analyzes link information included in the information data;
an access control unit that traces the analyzed link information and transitions between the information data to collect the information data ;
the search condition setting unit sets the trigger condition as part of the search condition based on the user operation;
The trigger conditions include the date and time or time period when the patrol process is to be performed, the timing of notification, or the method of notification;
The patrol control unit selects search conditions that match predetermined trigger conditions set by the search condition setting unit, and causes the information data collection unit to perform patrol and recollect information data corresponding to the selected search conditions.
A real estate information collection program characterized by: A real estate information collection method for collecting real estate-related information data distributed over a communication network constructed by interconnecting communication lines, comprising:
an information data collection step in which a search condition setting unit accepts setting of search conditions based on a user operation, and an information data collection unit travels around the communication network to collect the information data corresponding to the search conditions according to the search conditions set by the search condition setting unit;
an information extraction step of storing extraction keywords for extracting predetermined information from the information data in an extraction keyword database, and an information extraction unit searching the extraction keyword database to extract data corresponding to the extraction keywords from the information data in association with an information acquisition source and the extraction keywords, and storing the search conditions and the extracted data extracted by the information extraction unit in a search result storage unit in association with each other;
a cyclic control step in which a cyclic control unit selects search conditions that match a predetermined trigger condition in accordance with the trigger condition, and causes the information data collection unit to perform a cyclical control to re-collect the information data corresponding to the selected search conditions;
a notification step in which an extracted data comparison unit compares re-extracted data extracted from the re-collected information data with the extracted data stored in the search result storage unit to determine whether or not there is difference information, and generates and notifies presentation information for displaying a difference between the re-extracted data and the extracted data based on the comparison result by the extracted data comparison unit if there is difference information;
an information presenting step in which an information presenting unit presents arbitrarily selected information data, or information data included in the extracted data when there are a plurality of extracted data, in a comparative manner;
In the information data collecting step, the information data collecting unit
Analyzing link information included in the information data;
Following the analyzed link information to transition between pieces of information data, and collecting the pieces of information data ;
In the information data collecting step, the search condition setting unit sets the trigger condition as part of the search condition based on the user operation,
The trigger conditions include the date and time or time period when the patrol process is to be performed, the timing of notification, or the method of notification;
In the cyclic control step, the cyclic control unit selects search conditions that match the trigger conditions set in the search condition setting unit, and causes the information data collection unit to perform cyclical operations and recollect information data corresponding to the selected search conditions.
A method for collecting real estate information.