JP6329026B2 - POSITION INFORMATION LINKAGE ANALYSIS DEVICE, POSITION INFORMATION LINKAGE ANALYSIS SYSTEM, POSITION INFORMATION ANALYSIS METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a location information linkage analysis device, a location information linkage analysis system, a location information analysis method, and a program for the purpose of protecting privacy from terminals having various location acquisition functions such as mobile phones and smartphones.

  There are technologies such as Patent Document 1 and Non-Patent Documents 1 and 3 that activate a specific function / task based on position information frequently used by individuals. However, in this technology, it is necessary to provide individual raw position information (latitude and longitude) to the service.

  Corresponding to the above situation, Patent Document 2 proposes a method that enables a service based on position information in a form in which an individual cannot be specified.

  In Non-Patent Document 2, privacy information management such as name, hobby, and GPS information is provided to the user by providing the user with a function that can appropriately disclose the privacy information step by step based on the reliability of the service. Ingenuity that can be led. In this technology, the information is distributed according to the trust level, and the information is abstracted (to increase the granularity) or disturbed (the value is deliberately shifted, or it is rearranged with other users or representative values). ), Advanced anonymization technology (to keep track of individuals in record units), etc., making it difficult to identify users.

JP 2013-257292 A JP 2013-222305 A

Tasker-google play, http: // play. Google. com / store / apps / details? id = net. dinglidche. android. taskerm Docomo, the possibility of services rooted in individuals-From the Information Grand Voyage Project-p21-p25 http: // www. jpdec. or. jp / project / anshinkan / doc / 2011425/03. pdf IFITTT-https: // iftttt. com / wtf

  However, Patent Document 2 and Non-Patent Document 2 are methods for acquiring or managing / providing information in a form that cannot identify an individual to the last, and the acquired information itself is a specific position that actually exists.

  That is, since the user feels uneasy about providing the location information itself, it is not easy to obtain permission to acquire the location information even if the user is anonymized in the storage and provision method. Also, the data acquisition side does not necessarily require a specific location such as “Shibuya” or “Shinjuku” for analysis, and provides information that takes into account the user's behavior pattern characteristics (for example, provides information when returning home) For example, the above information is not necessary, and there is a need to take the risk of having to manage and strictly manage privacy-related information that can identify an individual's address. End up.

  Therefore, the present invention has been made in view of the above-described problems, and a location information linkage analysis device, a location information linkage analysis system, a location information that is uniquely defined so that the behavior at the location can be analyzed while concealing the location. An object is to provide an information analysis method and program.

  The present invention proposes the following matters in order to solve the above problems.

  (1) The present invention is based on information unique to a terminal or a user, position concealment means for concealing arbitrary position information uniquely, current position acquisition means for acquiring current position information of the terminal, Based on the position concealment means and the acquired current position, the concealment position information calculation means for calculating the concealed current position information, the execution condition of the process according to the concealed current position information, and the The execution condition storage means for associating and storing the concealed position information, and the execution condition storage when the related concealed position information and the output result of the concealed position information calculation means match. Based on the means, there is proposed a position information linkage analysis device characterized by comprising execution means for executing the execution contents in the terminal.

  (2) The present invention is the position information linkage analysis apparatus according to (1), wherein the position concealment means is a one-way function or encryption generated based on information unique to the terminal or the user. The position information linkage analysis device is characterized by uniquely concealing the arbitrary position information.

  (3) The present invention is the positional information link analysis device according to (1) or (2), further comprising current position storage means for temporarily storing the acquired current position information, and the concealed position information calculation means. Proposes a position information linkage analysis device comprising position information deletion means for deleting the acquired current position from the current position storage means after calculating the concealed position information. .

  (4) The present invention is the position information linkage analysis apparatus according to (3), comprising comparison means for comparing the most recently acquired current position information with the most recently acquired current position information. The present invention proposes a position information linkage analysis device that outputs the latest position information to a concealed position information calculation means when there is a change beyond a distance.

  (5) The present invention is the positional information linkage analysis apparatus according to (4), wherein, as a result of the comparison by the comparison means, when there is no change over a certain distance, it stays, and when there is a change over a certain distance, it moves A position information linkage analysis device characterized by comprising state detection means for detecting inside is proposed.

  (6) The present invention is the positional information link analysis device according to any one of (3) to (5), wherein the positional information deletion unit stores the acquired current position after the detection by the state detection unit. We propose a position information linkage analysis device that is characterized by deleting from the location information.

  (7) The present invention is the positional information link analysis device according to (1) to (6), wherein for each of the concealed positional information, the date, day of the week, start time, end time, Position feature storage means for storing values obtained by statistically processing the duration and observed information, and the execution means execute the execution contents in the terminal on condition of information in the position feature storage means We have proposed a location information linkage analysis device.

  (8) The present invention is the positional information link analysis device according to any one of (1) to (6), wherein each of the concealed position information and the concealed position information staying next A moving feature storage means for storing observation information such as day of the week, start time, end time, and duration, or information obtained by statistically processing observed information such as duration average time. The execution means proposes a position information linkage analysis apparatus characterized in that the execution contents in the terminal are executed on condition of information in the movement feature storage means.

  (9) The present invention is the positional information link analysis apparatus according to (1) to (8), wherein the concealed position information or / and the stay / movement state obtained from the concealed position information calculation means Has proposed a position information linkage analysis device characterized by comprising information transmission means for transmitting to a server through a communication environment.

  (10) The present invention is a position information cooperation analysis system including a position information cooperation analysis apparatus and a position information analysis server, wherein the position information cooperation analysis apparatus is based on information that is unique in the terminal. Position concealment means for concealing position information uniquely, current position acquisition means for acquiring the current position of the terminal, current position information concealed based on the position concealment means and the acquired current position And the concealed position information calculating means for calculating the concealed position information obtained by the concealed position information calculating means, together with an identifier for identifying the user who uses the terminal, is transmitted to the position analysis server through the communication environment. An information transmission means; and an execution means for receiving the execution contents in the terminal and executing the contents, and the location information analysis server is concealed transmitted from the information transmission means. Information receiving means for receiving the position information, storage means for storing the contents of execution in a terminal in association with the identifier and the concealed position information, and the associated concealed position information, The present invention proposes a position information linkage analysis system comprising: a transmission means for transmitting the execution contents in the terminal when the output result of the concealment position information calculation means matches.

  (11) The present invention is a position information cooperation analysis method in a position information cooperation analysis apparatus comprising position concealment means, current position acquisition means, concealment position information calculation means, execution condition storage means, and execution means, A first step in which the position concealing means conceals any position information uniquely based on information that is unique in the terminal; and a step in which the current position acquisition means acquires current position information of the terminal. The third step of calculating the concealed current position information based on the position concealing unit and the acquired current position, and the execution unit comprising: The position information stored in the execution condition storage unit that stores the execution condition of the process according to the concealed current position information and the concealed position information in association with each other and the output of the concealed position information calculation unit When the result is matched, based on the execution condition has proposed a positional information link analysis method characterized by comprising a fourth step of executing the execution contents in the terminal.

  (12) According to the present invention, the computer executes the position information cooperation analysis method in the position information cooperation analysis apparatus including the position concealment means, the current position acquisition means, the concealment position information calculation means, the execution condition storage means, and the execution means. The position concealment means is configured to conceal any position information uniquely based on information unique to the terminal or the user, and the current position acquisition means, A second step of acquiring current position information of the terminal; and the concealed position information calculating unit calculates concealed current position information based on the position concealing unit and the acquired current position. Step 3 and the execution unit storing the execution condition of the process according to the concealed current position information and the concealed position information in association with each other. For causing the computer to execute a fourth step of executing the execution content in the terminal based on the execution condition when the position information thus obtained matches the output result of the anonymized position information calculation means The program is proposed.

  According to the present invention, by acquiring and managing only non-identifiable concealment position information that is not based on a specific position (latitude / longitude, address, place name, etc.), information related to personal privacy is acquired. In addition, there is an effect that it is possible to acquire and manage information that predicts a life rhythm such as a stay or movement of the user. In addition, since the reference point is created based on unique information associated with the user or the terminal owned by the user, the same concealment position information can be used regardless of the execution position, time, and other environment of the method. Can be acquired and managed as the same concealment location information, analyze the characteristics of the stay location (or moving state) and execute the terminal function using the analysis result There is an effect that it is easy to perform.

It is the figure which showed the outline | summary of this invention. It is a figure which shows the structure of the positional information cooperation analysis apparatus which concerns on the 1st Embodiment of this invention. It is a figure which shows the process of the positional information cooperation analyzer which concerns on the 1st Embodiment of this invention. It is a figure which shows the structure of the positional information cooperation analysis apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the structure of the positional information cooperation analysis system which concerns on the 3rd Embodiment of this invention. It is a figure which shows the structure of the positional information cooperation analysis system which concerns on the 4th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the present embodiment does not limit the contents of the invention described in the claims.

  As shown in FIG. 1, the present invention encrypts position information or a character string indicating position information based on information that is unique to a terminal user or a terminal and that cannot be used by others. . For example, a random number using seed specific information (for example, IMEI) as a seed is generated, and a plurality of latitudes and longitudes are calculated as reference points based on the random number. Then, the distance between the current position acquired from the terminal and the same reference point is calculated, and the same distance or a numerical value obtained by hashing or / and discretizing the same distance is calculated as non-specific position information. The non-specific location information for the time is extracted as staying, and the identifier of the same location is given. Services based on various locations are provided with the same identifier. Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS.

<Configuration of location information linkage analyzer>
As shown in FIG. 2, the position information linkage analysis apparatus according to the present embodiment includes a position concealment unit 101, a current position acquisition unit 102, a concealment position information calculation unit 103, an execution condition storage unit 104, and an execution Section 105, current position storage section 106, position information deletion section 107, and position feature storage section 108.

  The position concealment unit 101 uniquely conceals arbitrary position information based on information unique to the terminal or the user. Specifically, the terminal ID (such as IMEI) or auID, other IDs on the web, passphrases stored / held by the user, secret keys, etc. Generate. For example, if the random number is a numerical value of 0 to 1, it can be converted to latitude information if (random number × 180-90) and converted to a longitude value if (random number × 360-180).

  By the above method, three pieces of position information are created as reference points and used as concealment means. However, the three pieces of position information are created so that they do not coincide with each other and are not on a single straight line. Therefore, if the conditions are not satisfied, a measure such as creation based on the next random number is performed.

  Note that the output created by the position concealment unit 101 can obtain the same output value for the same position input, and it is difficult to estimate the original position information.

  The current position acquisition unit 102 acquires current position information of the terminal. Specifically, the terminal acquires position information based on the GPS acquisition function of the terminal or position information from outside the terminal (for example, position information of the currently captured base station).

  The concealment position information calculation unit 103 calculates the concealed current position information based on the concealed position information and the acquired current position. Specifically, the position is concealed by the acquired position information and the position concealment unit 101. That is, three distance information is calculated by calculating the distance between the three position information and the acquisition position.

  The same distance information itself or a hashed value and / or a rounded value is recorded and transmitted to a terminal or a server and stored. For example, it is conceivable to acquire up to the fifth decimal point or to round the second decimal point.

  In addition, an irreversible conversion character string is obtained (encrypted) by using a cryptographic hash function for a document in which information related to the individual or the personal terminal is added to the position information. It is desirable that the relationship between the position information (position A is Xm east from B, Ym south, etc.) becomes unclear, and analogy from the position relation cannot be made.

  Also, in the concealment, if the change from the previous position is within the threshold, the current position is not output because it is staying at the same place as the previous time (determined within the terminal), or the same as the previous time It is also desirable to hold the concealment position information and return it to the request.

  The execution condition storage unit 104 stores the execution condition of the process according to the concealed current position information in association with the concealed position information. When the associated concealed location information matches the output result of the concealment location information calculation unit 103, the execution unit 105 executes the execution contents in the terminal based on the execution condition.

  The current position storage unit 106 temporarily stores the acquired current position information. The position information deletion unit 107 deletes the acquired current position from the current position storage unit 106 after the concealment position information calculation unit 103 calculates the concealed position information. Specifically, after calculating the concealed position, the raw position information that has become unnecessary is deleted. It is also desirable from the viewpoint of privacy protection that the terminal has a function that cannot transmit the raw location information itself. The position feature storage unit 108 stores, for each concealed position information, the date on which the position information is acquired, the day of the week, the start time, the end time, the duration, and a value obtained by statistically processing the observed information. At this time, the execution unit 105 executes the execution content in the terminal on the condition of the information in the position feature storage unit 108.

<Processing of location information linkage analyzer>
As illustrated in FIG. 3, the position concealment unit 101 uniquely conceals arbitrary position information based on information unique to the terminal or the user (Step S <b> 110). The current position acquisition unit 102 acquires the current position information of the terminal (step S120).

  The concealment position information calculation unit 103 calculates the concealed current position information based on the position information concealed by the position concealment unit 101 and the acquired current position (step S130).

  The execution unit 105 stores the position information and the concealed position information calculation unit stored in the execution condition storage unit 104 that stores the execution condition of the process according to the concealed current position information and the concealed position information in association with each other. When the output result of 103 matches, the execution content in the terminal is executed based on the execution condition (step S140).

<Use of confidential location information>
For example, by sending command designation information together with the location that was concealed in “Send location information” so that it can be used for execution instructions that perform specific actions when entering the same location, A service such as executing a specified command together with the converted position can be considered. It is also desirable to manage and store the concealed position transmitted to the server by assigning some ID (for example, serial number in the order of transmission).

  In addition, the distribution of the time of arrival at the same position, the average stay time at the same position, the probability of the next stay, and the like are accumulated and analyzed, for example, “Turn on Wi-Fi when a common place is found” “ An application that automatically creates an execution command such as “execute a travel route guidance service to a position where the person will likely stay next” is also conceivable.

In addition to the position, it is also desirable to separately manage the moving state associated with the latest stay position and the next stay position between the positions, that is, in the section determined during the movement. For example, during the movement from the position ID1 to the position ID2, an identifier such as movement ID1⇒ID2 is given, and analysis items such as the distribution of time and the average movement time during the movement are managed.
In this way, it may be possible to define an execution instruction that estimates the time to reach a specific position in advance.

  As described above, according to the present embodiment, by acquiring and managing only concealment position information that is not based on a specific position (latitude, longitude, address, place name, etc.), information related to personal privacy can be obtained. Without acquiring, it is possible to acquire / manage information that predicts a life rhythm such as stay and movement of the user.

<Second Embodiment>
A second embodiment of the present invention will be described with reference to FIG.

<Configuration of location information linkage analyzer>
As shown in FIG. 4, the position information linkage analysis apparatus according to the present embodiment includes a position concealment unit 101, a current position acquisition unit 102, a concealment position information calculation unit 103, an execution condition storage unit 104, and an execution Unit 105, current position storage unit 106, position information deletion unit 107, position feature storage unit 108, comparison unit 109, previous position storage unit 110, and movement feature storage unit 111. In addition, about the component which attaches | subjects the same code | symbol as 1st Embodiment, since it has the same function, the detailed description is abbreviate | omitted.

  The comparison unit 109 compares the most recently acquired current position information with the latest current position information, and when there is a change of a certain distance or more as a result of the comparison, the latest position information is concealed. To 103. Further, as a result of comparison, when there is no change over a certain distance, it is detected that the vehicle is staying, and when there is a change over a certain distance, it is detected that the vehicle is moving. Further, the position information deletion unit 107 deletes the acquired current position from the current position storage unit 106 after detection. The previous position storage unit 110 stores current position information acquired most recently.

  Therefore, according to the present embodiment, while reducing the storage capacity load, by acquiring and managing only non-specific position information that is not based on a specific position (latitude / longitude, address, place name, etc.), it is possible to improve personal privacy. It is possible to acquire and manage information that predicts a life rhythm such as stay and movement of a user without acquiring related information.

<Third Embodiment>
A third embodiment of the present invention will be described with reference to FIG. This embodiment has a system configuration including an analysis server.

<Configuration of location information linkage analysis system>
As shown in FIG. 5, the location information linkage analysis system according to the present embodiment is configured by a location information linkage analysis device 100 and a location information analysis server 200, and the location information linkage analysis device 100 includes a location concealment unit 101. The current position acquisition unit 102, the concealment position information calculation unit 103, the execution unit 105, the current position storage unit 106, the position information deletion unit 107, the comparison unit 109, the previous position storage unit 110, and the information transmission The location information analysis server 200 includes a transmission / reception unit 201 and an execution condition storage unit 104. In addition, about the component which attaches | subjects the same code | symbol as 1st Embodiment or 2nd Embodiment, since it has the same function, the detailed description is abbreviate | omitted.

  The transmission / reception unit 201 receives the concealed position information from the position information cooperation analysis apparatus 100 and transmits an execution condition.

  Therefore, according to the present embodiment, while reducing the storage capacity load, by acquiring and managing only non-specific position information that is not based on a specific position (latitude / longitude, address, place name, etc.), it is possible to improve personal privacy. It is possible to acquire and manage information that predicts a life rhythm such as stay and movement of a user without acquiring related information.

<Fourth Embodiment>
A fourth embodiment of the present invention will be described with reference to FIG. This embodiment has a system configuration including an analysis server.

<Configuration of location information linkage analysis system>
As illustrated in FIG. 6, the positional information cooperation analysis system according to the present embodiment includes a positional information cooperation analysis apparatus 100 and a positional information analysis server 200, and the positional information cooperation analysis apparatus 100 includes a position concealment unit 101 and The current position acquisition unit 102, the concealment position information calculation unit 103, the execution unit 105, the current position storage unit 106, the position information deletion unit 107, the comparison unit 109, the previous position storage unit 110, and the information transmission The location information analysis server 200 includes a transmission / reception unit 201, an execution condition storage unit 104, a location feature storage unit 108, and a movement feature storage unit 111. In addition, since it has the same function about the component which attaches | subjects the same code | symbol as 1st Embodiment, 2nd Embodiment, or 3rd Embodiment, the detailed description is abbreviate | omitted.

  Therefore, according to the present embodiment, while reducing the storage capacity load, by acquiring and managing only non-specific position information that is not based on a specific position (latitude / longitude, address, place name, etc.), it is possible to improve personal privacy. It is possible to acquire and manage information that predicts a life rhythm such as stay and movement of a user without acquiring related information.

  The processing of the location information linkage analysis device and the location information linkage analysis system is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the location information linkage analysis device and the location information linkage analysis system. The position information linkage analysis apparatus and the position information linkage analysis system of the present invention can be realized by executing. The computer system here includes an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention.

100; position information linkage analysis apparatus 101; position concealment unit 102; current position acquisition unit 103; concealment position information calculation unit 104; execution condition storage unit 105; execution unit 106; current position storage unit 107; position information deletion unit 108 ; Position feature storage unit 109; Comparison unit 110; Previous position storage unit 111; Movement feature storage unit 112; Information transmission unit 200; Location information analysis server 201;

Claims (12)

Position concealment means for concealing arbitrary position information uniquely based on information unique to the terminal or user;
Current position acquisition means for acquiring current position information of the terminal;
Based on the concealed position information and the acquired current position, concealed position information calculating means for calculating the concealed current position information,
Execution condition storage means for associating and storing the execution condition of the process according to the concealed current position information and the concealed position information;
An execution means for executing the execution content in the terminal based on the execution condition when the associated concealed position information matches the output result of the concealment position information calculation means;
A position information linkage analysis device characterized by comprising:   2. The position concealment unit uniquely conceals the arbitrary position information by a one-way function or encryption generated based on information unique to the terminal or the user. Location information linkage analysis device described in 1. A current position storage means for temporarily storing the acquired current position information;
2. The concealment position information calculation means comprises position information deletion means for deleting the acquired current position from the current position storage means after calculating the concealed position information. Or the positional information cooperation analyzer of Claim 2. Comparing means for comparing the current position information acquired most recently with the latest current position information,
The position information acquisition apparatus according to claim 3, wherein the latest position information is output to the concealment position information calculation unit when there is a change of a certain distance or more as a result of the comparison.   5. The state detection unit according to claim 4, further comprising: a state detection unit that detects that the vehicle is staying when there is no change over a certain distance as a result of comparison by the comparison unit, and that the vehicle is moving when there is a change over a certain distance. Location information linkage analyzer. The location information deletion means, after detection by said state detecting means, the position information link analyzer according to the obtained current position to claim 5, characterized in that to remove from the current position storage means. For each of the concealed position information, the date of acquisition of the position information, the day of the week, the start time, the end time, the duration, a position feature storage means for storing a value obtained by statistically processing the observed information,
The position information linkage analysis apparatus according to claim 1, wherein the execution unit executes the execution contents in the terminal on condition of information in the position feature storage unit. For each of the anonymized location information and the anonymized location information that has been staying next, the date on which the information appears, day of the week, start time, end time, duration, or continuous average Moving feature storage means for storing a statistically processed value of time;
The position information linkage analysis apparatus according to claim 1, wherein the execution unit executes the execution content in the terminal on condition of information in the movement feature storage unit.   The information transmitting means for transmitting the concealed position information or / and the stay / movement state obtained from the concealed position information calculating means to the server through a communication environment. Item 9. The positional information link analysis device according to any one of Items 8 to 8. A location information linkage analysis system comprising a location information linkage analysis device and a location information analysis server,
The positional information linkage analyzer is
Position concealment means for concealing arbitrary position information uniquely based on information unique to the terminal or user;
Current position acquisition means for acquiring the current position of the terminal;
Based on the concealed position information and the acquired current position, concealed position information calculating means for calculating the concealed current position information,
Information transmitting means for transmitting the concealed position information obtained from the concealed position information calculating means to the position analysis server through a communication environment together with an identifier for identifying a user who uses the terminal;
Execution means for receiving the execution contents in the terminal and executing the contents;
With
The location information analysis server is
Information receiving means for receiving the concealed location information transmitted from the information transmitting means;
Storage means for storing the execution content in a terminal in association with the identifier and the concealed location information;
Transmitting means for transmitting the in-terminal execution content when the associated concealed position information matches an output result of the concealed position information calculating means;
Location information linkage analysis system characterized by comprising. A position information linkage analysis method in a position information linkage analysis apparatus comprising a position concealment means, a current position acquisition means, a concealment position information calculation means, an execution condition storage means, and an execution means,
A first step in which the location concealment means conceals any location information uniquely based on information unique to the terminal or the user;
A second step in which the current position acquisition means acquires current position information of the terminal;
A third step in which the concealed position information calculating means calculates the concealed current position information based on the position information concealed by the position concealing means and the acquired current position;
Position information stored in the execution condition storage means and the concealed position information in which the execution means associates and stores the execution condition of the process according to the concealed current position information and the concealed position information A fourth step of executing the execution content in the terminal based on the execution condition when the output result of the calculation means coincides;
A location information linkage analysis method characterized by comprising: A program for causing a computer to execute a location information linkage analysis method in a location information linkage analysis device including a location concealment unit, a current location acquisition unit, a concealment location information calculation unit, an execution condition storage unit, and an execution unit. ,
A first step in which the location concealment means conceals any location information uniquely based on information unique to the terminal or the user;
A second step in which the current position acquisition means acquires current position information of the terminal;
A third step in which the concealed position information calculating means calculates the concealed current position information based on the position information concealed by the position concealing means and the acquired current position;
Position information stored in the execution condition storage means and the concealed position information in which the execution means associates and stores the execution condition of the process according to the concealed current position information and the concealed position information A fourth step of executing the execution content in the terminal based on the execution condition when the output result of the calculation means coincides;
A program that causes a computer to execute.

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