Positioning device, positioning method, and program

Abstract

The present invention is a monitoring system in which a position measurement device generates entry restricted zone information if the position of a subject is inside an entry restricted zone, and generates buffer zone information if the position of the subject is inside a buffer zone set around the entry-restricted zone, and a monitoring device, upon receiving the entry restricted zone information, generates, to an output device, output information indicating that the subject has entered the entry restricted zone, and upon receiving the buffer zone information, generates, to the output device, output information indicating that the subject has entered the buffer zone.

Description

[Technical Field]

[0001] The technical field is a positioning device and a positioning method for monitoring a subject under surveillance. , and and programs. [Background technology]

[0002] In recent years, there have been cases of people under supervision fleeing the scene. Examples of people under supervision include defendants on bail and prisoners on parole. A defendant on bail is someone who has been released from detention (physical restraint) after being indicted, and who has been charged (indicted) on suspicion of a crime. A prisoner on parole is an inmate of a correctional facility who has been provisionally released prior to the expiration of his or her sentence and is being held in the facility to serve a sentence of imprisonment (penal servitude, incarceration, or detention).

[0003] If a person under surveillance escapes, it could lead to the commission of a new crime. Therefore, as a measure to prevent escapes, judges could be expected to make stricter judgments regarding the requirements for bail or suspension of detention. In recent years, there has also been a trend toward granting bail or suspension of detention from the perspective of human rights protection.

[0004] One possible solution is to have the person under surveillance wear a GPS-based positioning device to monitor their movements. However, some people are opposed to this as it would involve constantly monitoring the movements of the person under surveillance, which would be an invasion of privacy. On the other hand, some people are of the opinion that using a GPS-based positioning device would help protect the safety of society.

[0005] Therefore, there is a need to develop a new surveillance system that can monitor subjects under surveillance.

[0006] As a related technology, Patent Document 1 discloses a technology that uses area information and the target person's location information to detect whether the target person is present in a notification area that includes a monitored area, and uses the target person's status information and attribute information to estimate the impact that the monitored area within the notification area will have on the target person's status, and notifies the target person of information based on the results of the estimation.

[0007] As a related technique, Patent Document 2 discloses a mobile communication terminal device that can monitor a moving monitored person by flexibly responding to the monitoring area that is scattered and changing. When a monitoring area is set, the mobile communication terminal device of the monitored person in Patent Document 2 compares the current position detected by a GPS sensor with the set monitoring area, and if it determines that there is an abnormality, it sends an emergency email to the mobile phone of the monitor. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] International Publication No. 2014 / 129159 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-355243 Summary of the Invention [Problem to be solved by the invention]

[0009] However, neither of the techniques of Patent Documents 1 and 2 monitors a subject under surveillance.

[0010] As one aspect, a positioning device and a positioning method for restricting the behavior of a subject under surveillance. , and The purpose is to provide a program. [Means for solving the problem]

[0011] In order to achieve the above object, a monitoring system in one aspect comprises: The positioning device If the location of a subject under surveillance is included in a no-entry area set based on the reason why the subject came to be monitored, generating no-entry area information including location information indicating the location of the subject and no-entry information indicating that the subject has entered the no-entry area; If the location of the target person is included in a buffer zone set around the intrusion prohibited area, buffer zone information is generated that includes the location information and buffer information indicating that the target person has intruded into the buffer zone; If the location of the target person is included in the no-entry area, transmit the no-entry area information to a monitoring device, and if the location of the target person is included in the buffer area, transmit the buffer area information to the monitoring device. The monitoring device When the entry-prohibited area information is received, an output device generates output information indicating that the subject has entered the entry-prohibited area, and when the buffer area information is received, an output device generates output information indicating that the subject has entered the buffer area. It is characterized by:

[0012] In order to achieve the above object, a positioning device according to one aspect includes: a determination unit that determines whether the location of a subject under surveillance is included in a no-entry area that has been set based on the reason why the subject has come under surveillance, and if the location of the subject is included in the no-entry area, generates no-entry area information having location information that indicates the location of the subject and no-entry information that indicates that the subject has entered the no-entry area, and if the location of the subject is included in a buffer area that has been set around the no-entry area, generates buffer area information having the location information and buffer information that indicates that the subject has entered the buffer area; a notification unit that notifies the target person that they have entered the prohibited area or the buffer area; The present invention is characterized by having the following.

[0013] In order to achieve the above object, a positioning method according to one aspect includes: determining whether the location of a subject under surveillance is within a no-entry area set based on the reason why the subject has come under surveillance; if the location of the subject is within the no-entry area, generating no-entry area information having location information representing the location of the subject and no-entry information representing an intrusion into the no-entry area; if the location of the subject is within a buffer area set around the no-entry area, generating buffer area information having the location information and buffer information representing an intrusion into the buffer area; notifying the subject that they have entered the prohibited area or the buffer zone; It is characterized by:

[0014] In order to achieve the above object, in one aspect program teeth, On the computer, determining whether the location of a subject under surveillance is within a no-entry area set based on the reason why the subject has come under surveillance; if the location of the subject is within the no-entry area, generating no-entry area information having location information representing the location of the subject and no-entry information representing an intrusion into the no-entry area; if the location of the subject is within a buffer area set around the no-entry area, generating buffer area information having the location information and buffer information representing an intrusion into the buffer area; notifying the subject that he or she has entered the prohibited area or the buffer zone; child It is characterized by the following.

[0015] In order to achieve the above object, a monitoring device according to one aspect comprises: Based on the reasons why the person under surveillance is being monitored configured a no-entry area setting information generating unit that generates no-entry area setting information for setting the no-entry area in the positioning device; a buffer zone setting information generating unit that generates buffer zone setting information for setting a buffer zone around the intrusion prohibited zone; a communication unit that transmits the no-entry area setting information and the buffer area setting information to the positioning device; The present invention is characterized by having the following.

[0016] In order to achieve the above object, a monitoring method in one aspect includes: Based on the reasons why the person under surveillance is being monitored configured generating no-entry area setting information for setting the no-entry area in the positioning device; generating buffer zone setting information for setting a buffer zone around the no-entry zone; transmitting the no-entry area setting information and the buffer area setting information to the positioning device; It is characterized by:

[0017] Furthermore, in order to achieve the above object, in one aspect program teeth, On the computer, Based on the reasons why the person under surveillance is being monitored configured generating no-entry area setting information for setting the no-entry area in the positioning device; generating buffer zone setting information for setting a buffer zone around the no-entry zone; transmitting the no-entry area setting information and the buffer area setting information to the positioning device; child It is characterized by the following. [Effects of the Invention]

[0018] One aspect is to restrict the behavior of the person under surveillance. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a monitoring system. [Figure 2] FIG. 2 is a diagram for explaining continuity and comprehensiveness. [Figure 3] FIG. 3 is a diagram for explaining degradation of date and time information. [Figure 4] FIG. 4 is a diagram for explaining degradation of location information and date and time information. [Figure 5] FIG. 5 is a diagram for explaining degradation of location information. [Figure 6] FIG. 6 is a diagram for explaining the no-entry areas and buffer areas. [Figure 7] FIG. 7 is a diagram illustrating an example of the state display information. [Figure 8] FIG. 8 is a diagram for explaining an example of the intrusion route display information. [Figure 9] FIG. 9 is a diagram for explaining an example of the intruder detail display information. [Figure 10] FIG. 10 is a diagram illustrating an example of the operation of the positioning device. [Figure 11] FIG. 11 is a diagram illustrating an example of the operation of the monitoring device. [Figure 12] FIG. 12 is a diagram illustrating an example of the operation of the monitoring device. [Figure 13] FIG. 13 is a diagram illustrating an example of a computer that realizes a positioning device or a monitoring device. DETAILED DESCRIPTION OF THE INVENTION

[0020] (Embodiment) The configuration of a monitoring system according to an embodiment will be described with reference to Fig. 1. Fig. 1 is a diagram illustrating an example of the configuration of a monitoring system.

[0021] [System Configuration] As shown in FIG. 1, the system includes a positioning device 10, a relay device 20, and a monitoring device 30.

[0022] The positioning device will now be described. The positioning device 10 is a device that prevents escape of a person under surveillance and protects the privacy of the person under surveillance. The person under surveillance may be, for example, a defendant out on bail or a prisoner on parole.

[0023] The positioning device 10 is, for example, a device having a circuit or a computer equipped with a programmable device such as a CPU (Central Processing Unit) or an FPGA (Field-Programmable Gate Array), or one or more of these. The positioning device 10 is, for example, a dedicated device worn by a subject under monitoring, a wristwatch-type device, a smartphone, or the like.

[0024] Here, the dedicated device or wristwatch-type device has a function to notify the monitoring device 30 when the subject removes the dedicated device, for example. Alternatively, the dedicated device, wristwatch-type device, or smartphone has a function to notify the monitoring device 30 when authentication is not performed at regular intervals.

[0025] The positioning device 10 includes an antenna unit 11 , a generation unit 12 , a control unit 13 , a change unit 14 , a determination unit 15 , a communication unit 16 , and a notification unit 17 .

[0026] The antenna unit 11 receives satellite signals (digital signals) transmitted from a plurality of artificial satellites used in, for example, a global navigation satellite system.

[0027] The generation unit 12 determines the position of the subject under surveillance based on satellite signals received from artificial satellites, and generates position information (first position information) representing the position of the subject and date and time information (first date and time information) representing the date and time of positioning.

[0028] Specifically, the generation unit 12 generates position information (first position information) indicating the position (latitude and longitude) of the subject and date and time information (first date and time information) indicating the date and time of positioning by performing a positioning process using satellite signals. The positioning process may be a process using a code positioning method, a carrier wave positioning method, or the like. However, the positioning process is not limited to the process described above.

[0029] When the control unit 13 receives a positioning request from the communication unit 16, it outputs an instruction to start positioning to the generation unit 12. Thereafter, the control unit 13 acquires the position information (first position information) and the date and time information (first date and time information) that are the positioning results generated by the generation unit 12.

[0030] Next, the control unit 13 outputs the positioning result (the first position information and the first date and time information, or either one of the information) to the change unit 14. After that, when the control unit 13 acquires the positioning result (the second position information and the second date and time information, or either one of the information) that has been subjected to degradation processing by the change unit 14, the control unit 13 outputs the positioning result that has been subjected to degradation processing to the communication unit 16.

[0031] In the example of FIG. 1, the control unit 13 is provided inside the positioning device 10, but the functions of the control unit 13 may be provided in a server computer provided outside the positioning device 10.

[0032] The modification unit 14 modifies the positioning result (first location information and first date and time information, or either one of the information) according to the privacy infringement area representing the area that infringes the privacy of the subject, and generates the modified positioning result (second location information and second date and time information, or either one of the information).

[0033] Areas of privacy violation include, for example, areas where the subject's home, medical institutions (e.g., hospitals, pharmacies) used by the subject, etc. Furthermore, areas of privacy violation include areas where it is estimated that unfair discrimination, prejudice, or other disadvantages will occur against the subject due to race, creed, social status, medical history, criminal history, or criminal history, or other factors if the subject is located in that area.

[0034] The privacy violation area is stored in advance in a storage unit (not shown) of the positioning device 10. Alternatively, the privacy violation area may be set by the person concerned for each subject.

[0035] Altering the location information and / or date and time information (positioning results) is a process that makes it difficult to identify that the subject was in a location that violates the subject's privacy. Examples of such alterations include (1) deleting the positioning results in a privacy violation area, and (2) adding random numbers to the positioning results in a privacy violation area to perturb them. Furthermore, alterations can also include (3) degrading the positioning results in a privacy violation area.

[0036] (3) Degradation of positioning results will be explained. Figure 2 is a diagram for explaining continuity and comprehensiveness. In the graph in Figure 2, the vertical axis represents the location (A (starting point) to G (arrival point)) specified by latitude and longitude, and the horizontal axis represents the date and time (year, month, day, hour, etc.). Also, Δp in Figure 2 represents the distance interval set to obtain positioning results, and Δt represents the time interval set to obtain positioning results.

[0037] Here, continuity can be said to be a property indicating the time-series sequence of positioning results, so the longer the positioning results are obtained, the more continuity there is.Comprehensiveness can be said to be a property indicating that positioning results are obtained without omission within a certain range, so the smaller the distance interval Δp and time interval Δt, the more comprehensive it can be said to be.

[0038] Therefore, the continuity can be reduced by (3-1) limiting the period for obtaining the positioning results or (3-2) increasing the time interval Δt.

[0039] The coverage can be reduced by (3-3) increasing the time interval Δt and the distance interval Δp, or by (3-4) simply increasing the distance interval Δp.

[0040] In actual processing, to achieve (3-1), it is sufficient to limit the period for acquiring the positioning results. To achieve (3-2), it is sufficient to increase the time interval Δt as shown in Figure 3. Figure 3 is a diagram for explaining degradation of date and time information.

[0041] To achieve (3-3), the distance interval Δp and the time interval Δt should be increased as shown in Fig. 4. Fig. 4 is a diagram for explaining the degradation of the location information and the date and time information.

[0042] To achieve (3-4), the distance interval Δp is increased as shown in Figure 5. Figure 5 is a diagram for explaining the degradation of location information. Note that increasing the distance interval Δp can be considered the same as widening the area.

[0043] In other words, the smaller the area represented by Δp × Δt, the higher the continuity and comprehensiveness, and the more information can be obtained during the positioning period. Conversely, the larger the area, the lower the continuity and comprehensiveness, and the less information can be obtained overall.

[0044] Therefore, as shown in Figs. 3 to 5, the area of Δp × Δt becomes large in all cases, and 2 The amount of information indicated by lines L1, L2, and L3 representing the behavioral history of FIGS. 3 to 5 is less than that indicated by line L representing the behavioral history of FIG.

[0045] Specifically, Fig. 5 If only the distance interval Δp is increased, the target person's location can only be expressed by latitude and longitude, so only rough location information can be obtained compared to Figure 2. 3 As shown in Fig. 2, if the time interval Δt is increased while the distance interval Δp is kept the same as in Fig. 2, the target person's location can be obtained with high accuracy, but the granularity of the date and time information becomes coarser.

[0046] Therefore, by degrading the positioning information as described above, the privacy of the subject under surveillance can be protected.

[0047] Specifically, when the location indicated by the location information is included in the privacy violation area, the modification unit 14 modifies the date and time information based on the date and time information modification process associated with the privacy violation area so that the time that the subject stayed in the privacy violation area cannot be identified.

[0048] That is, the changing unit 14 increases the time interval Δt in the privacy invading area based on the date and time information changing process. Note that the way in which the date and time information changing process is changed may be changed depending on the type of privacy invading area.

[0049] The date and time information change process is a process that makes it difficult to identify the date and time when a subject passes through an object (such as a building) that is presumed to violate privacy. The date and time information change process is a process that, for example, changes the time interval Δt to a size that presumes that a preset number of people or vehicles will pass through the object that is presumed to violate privacy.

[0050] Alternatively, the date and time information change process is, for example, a process of changing the time interval Δt to a size that will allow a predetermined number of people or vehicles to be estimated to be present at an object that is estimated to invade privacy.

[0051] Furthermore, when the location indicated by the location information is included in a privacy infringement area, the change unit 14 may acquire date and time information after a preset time has elapsed since the previous positioning.

[0052] Next, the distance interval Δp is, specifically, when the location indicated by the location information is included in the privacy violation area, the modification unit 14 modifies the location information based on the location information modification process associated with the privacy violation area so that the location of the subject cannot be identified.

[0053] That is, the change unit 14 increases the distance interval Δp in the privacy violation area based on the position information change process. Note that the way of changing the position information change process may be changed depending on the type of privacy violation area.

[0054] The location information change process is a process that reduces the possibility of identifying an object that is suspected to be violating privacy by blending it into multiple other objects. However, it is necessary to be able to obtain the necessary information.

[0055] In actual processing, if the object presumed to violate privacy is a building, the target person and / or the building are prevented from being identified. That is, the distance interval Δp is set to a size that allows multiple buildings to be included in the vicinity of the building.

[0056] Alternatively, the distance interval Δp may be set to a size that is considered to allow multiple people or vehicles to be present around the target person at the same time.

[0057] It is desirable to set the magnitudes of the distance interval Δp and the time interval Δt based on experience and circumstances familiar with past cases.

[0058] The determination unit 15 determines whether the target person's location is within a no-entry area that has been set based on the reason why the target person has come to be monitored, and if the target person's location is within the no-entry area, generates no-entry area information that has location information (first location information) that indicates the target person's location and no-entry information that indicates that the target person has entered the no-entry area.

[0059] The reason why a subject is being monitored may be, for example, that the subject is out on bail or parole. The restricted area information includes location information indicating the subject's current location and restricted area information (e.g., a flag) indicating whether the subject is in a restricted area.

[0060] If the subject is out on bail or parole, the restricted area shall be an area that includes facilities that are expected to be used for escape while out on bail or parole, or if the subject is out on bail or parole, the restricted area shall be an area that is established at least according to the subject's attributes.

[0061] Attributes include, for example, the subject's gender, nationality, the subject's offense, a victim's application, and the subject's application. The subject's offense indicates the type of crime the subject committed while on bail or parole. A victim's application is submitted by a victim or a relative of the victim related to the subject. A subject's application is submitted by the subject (or their lawyer).

[0062] If the target person has a foreign nationality, there is a possibility that they may flee overseas, so no-entry zones are set up in areas where there are facilities that the target person could use to flee, such as airports and ports.

[0063] If the offender is guilty of, for example, stalking or domestic violence, a no-entry zone will be set up in areas that are assumed to be related to the victim and / or related parties of the victim in order to restrict the target's activities. For example, no-entry zones will be set up in areas that include facilities such as the victim's home, workplace, commute route, and the victim's parents' home.

[0064] Furthermore, when a victim of a crime such as stalking or domestic violence submits a request, the requested area is added to the no-entry areas established for the crime of the victim, and a new no-entry area is established. For example, if the victim changes their refuge from their own home to a friend's house, that is, if their situation changes, they can add the friend's house to the no-entry area. Furthermore, if the victim moves, they can change the no-entry area by submitting a new address.

[0065] Furthermore, if a person is on bail or parole but is forced to use public transportation such as an airplane, if the person (or their lawyer) applies for such a request, and if the application is deemed to be for reasonable reasons (and is approved), the restrictions on the person's activities will be lifted for a limited period of time.

[0066] For example, if a person on bail or parole residing in Tokyo wishes to use an airport in Tokyo to return to their family home in Okinawa, they must submit an application explaining the reason. If the application is deemed reasonable and approved, they will be permitted to enter the airport, which has been designated a no-entry zone, or the buffer zone established around the airport, and restrictions on the person's activities will be lifted for a limited period of time.

[0067] In addition, when the subject's location is included in a buffer area set around the no-entry area, the judgment unit 15 generates buffer area information having first location information and buffer information indicating that the subject has entered the buffer area.

[0068] The buffer zone information includes location information indicating the current location of the subject and buffer information (e.g., a flag) indicating whether the subject has entered the buffer zone. The buffer zone is an area set up to allow the subject to detect early intrusion into a prohibited zone. The buffer zone is, for example, a concentric area drawn with a certain radius from the prohibited zone, or an area arbitrarily set on or around the approach route to the prohibited zone.

[0069] For example, if the target area is an airport parking lot, a road leading to the airport, or the station just before the airport, a buffer zone will be set up around the target area. Also, if there is a single road leading to a port, a buffer zone will be set up around that road.

[0070] FIG. 6 is a diagram illustrating no-entry areas and buffer areas. FIG. 6 shows a map displayed on the screen of the monitoring device 30. In the example of FIG. 6, pre-set no-entry areas and buffer areas are displayed on the map. As shown in FIG. 6, when a target person (positioning device 10: ●) approaches the airport in the direction of the arrow, he / she first enters the buffer area set around the airport, and the positioning device 10 transmits buffer area information. Next, when the target person enters the no-entry area set in the airport, the positioning device 10 transmits no-entry area information.

[0071] Next, the determination unit 15 outputs the generated entry-prohibited area information or buffer area information to the communication unit 16.

[0072] The communication unit 16 communicates with the relay device 20, for example, wirelessly. The communication unit 16 receives a positioning request from the relay device 20. The communication unit 16 also transmits the positioning result that has been subjected to degradation processing to the relay device 20. The communication unit 16 also transmits, to the relay device 20, entry-restricted area information or buffer area information, which will be described later.

[0073] The notification unit 17 notifies the target person that they have entered a prohibited area or a buffer zone. If the positioning device 10 has a screen, the notification unit 17 generates information for displaying that they have entered a prohibited area or a buffer zone, and displays the fact that they have entered a prohibited area or a buffer zone on the screen based on the generated information.

[0074] As another notification method, the positioning device 10 may be vibrated. Alternatively, the positioning device 10 may be provided with an LED or the like to notify by light. Furthermore, the positioning device 10 may be provided with a speaker to notify by voice.

[0075] The relay device will now be described. The relay device 20 is, for example, a device owned by a provider that provides services using GPS (Global Positioning System), GNSS (Global Navigation Satellite System), etc. The relay device 20 receives a positioning request, which is a command to start positioning, transmitted from the monitoring device 30 via a communication network. Thereafter, the relay device 20 transmits the received positioning request to the positioning device 10.

[0076] Furthermore, the relay device 20 receives the positioning result measured by the positioning device 10, which is transmitted from the positioning device 10. Thereafter, the relay device 20 transmits the received positioning result to the monitoring device 30 via the communication network.

[0077] Furthermore, the relay device 20 receives the entry-prohibited area information or buffer area information generated by the positioning device 10 and transmitted from the positioning device 10. Thereafter, the relay device 20 transmits the received entry-prohibited area information or buffer area information, or both, to the relay device 20. Monitoring device 30 Send to.

[0078] The monitoring device will now be described. The monitoring device 30 is an information processing device such as a server computer, a personal computer, or a mobile terminal. The monitoring device 30 transmits a positioning request to the relay device 20 via a communication network. The monitoring device 30 receives the positioning result transmitted from the relay device 20 via the communication network. The monitoring device 30 also receives the no-entry zone information or buffer zone information transmitted from the relay device 20 via the communication network.

[0079] The monitoring device 30 includes a privacy infringement area setting information generation unit 31, an entry-prohibited area setting information generation unit 32, a buffer area setting information generation unit 33, a communication unit 34, an output information generation unit 35, and a storage unit 36. The monitoring device 30 is also connected to an output device 40.

[0080] The output device 40 acquires the output information converted into an outputtable format by the output information generation unit 35, and outputs the generated image, sound, etc. based on the output information. The output device 40 is, for example, an image display device using a liquid crystal, an organic EL (Electro Luminescence), or a CRT (Cathode Ray Tube). Furthermore, the image display device may also include an audio output device such as a speaker. The output device 40 may also be a printing device such as a printer.

[0081] The privacy violation area setting information generation unit 31 generates privacy violation area setting information for setting a privacy violation area that is expected to violate the privacy of a subject under surveillance in the positioning device 10 worn by the subject.

[0082] Specifically, the privacy infringement area setting information generating unit 31 first acquires privacy infringement-related information that is stored in the storage unit 36 and is assumed to infringe on the privacy of the subject person.

[0083] Privacy violation-related information is, for example, information about the subject's home, the area where the medical institutions (e.g., hospitals, pharmacies) used by the subject are located, and information about the subject's race, creed, social status, medical history, criminal history, history of having suffered harm due to a crime, or other areas where unfair discrimination, prejudice, or other disadvantages are likely to occur against the subject if the subject were to be in those locations.

[0084] Next, based on the privacy violation-related information, the privacy violation area setting information generation unit 31 generates privacy violation area setting information for setting a privacy violation area for each subject in the positioning device 10. Then, the privacy violation area setting information generation unit 31 transmits the privacy violation area setting information to the positioning device 10 via the communication unit 34.

[0085] Thereafter, when the positioning device 10 receives the privacy violation area setting information, it sets a privacy violation area based on the received privacy violation area setting information.

[0086] The no-entry area setting information generating unit 32 generates no-entry area setting information for setting no-entry areas in the positioning device 10 based on the reason why the target person has come under surveillance. Specifically, the no-entry area setting information generating unit 32 first acquires attribute information corresponding to the target person stored in the storage unit 36.

[0087] The attribute information includes, for example, the gender and nationality of the subject, the charges against the subject, the application from the victim, and the application from the subject.

[0088] Next, the entry-prohibited area setting information generating unit 32 generates entry-prohibited area setting information for setting an entry-prohibited area in the positioning device 10 for each target person based on the attribute information.

[0089] If the subject is out on bail or parole, the restricted area shall be an area that includes facilities that are expected to be used for escape while out on bail or parole, or if the subject is out on bail or parole, the restricted area shall be an area that is established at least according to the subject's attributes.

[0090] The no-entry area setting information generating unit 32 then transmits the no-entry area setting information to the positioning device 10 via the communication unit .

[0091] Thereafter, when the positioning device 10 receives the entry-prohibited area setting information, it sets the entry-prohibited area based on the entry-prohibited area setting information.

[0092] The buffer zone setting information generating unit 33 generates buffer zone setting information for setting a buffer zone around the intrusion-prohibited zone. Specifically, the buffer zone setting information generating unit 33 arbitrarily sets the buffer zone, for example, in a range on a concentric circle drawn at a certain radius from the intrusion-prohibited zone, or on an approach route to the intrusion-prohibited zone and its surroundings.

[0093] Next, the buffer zone setting information generation unit 33 generates buffer zone setting information for setting the buffer zone in the positioning device 10. Then, the buffer zone setting information generation unit 33 transmits the buffer zone setting information for setting the buffer zone to the positioning device 10 via the communication unit 34.

[0094] Thereafter, upon receiving the buffer zone setting information, the positioning device 10 sets a buffer zone based on the buffer zone setting information.

[0095] The communication unit 34 transmits the privacy invading area setting information, the entry prohibition area setting information, and the buffer area setting information to the positioning device 10. twist At least the entry-prohibited area information or the buffer area information is received via the relay device 20.

[0096] When receiving the entry-prohibited area information, the output information generating unit 35 generates output information indicating that the target person has entered the entry-prohibited area, and when receiving the buffer area information, 40 Then, the output information generating unit 35 generates output information indicating that the target person has entered the buffer zone. Thereafter, the output information generating unit 35 outputs the output information to the output device 40.

[0097] The storage unit 36 stores at least privacy violation area setting information, entry-prohibited area setting information, buffer area setting information, positioning results, entry-prohibited area information, and buffer area information. The storage unit 36 also stores information set in the positioning device 10.

[0098] 1, the storage unit 36 is provided inside the monitoring device 30, but may be provided outside the monitoring device 30. The storage unit 36 may be, for example, a database, a server computer, or a memory.

[0099] The status display information will be described. 7 is a diagram illustrating an example of the status display information. When generating the status display information, the monitoring device 30 first receives no-entry zone information or buffer zone information. Furthermore, the monitoring device 30 may receive information such as the positioning device number, charging state, positioning device radio wave status information, and GPS / GNSS radio wave status information from the positioning device 10.

[0100] Thereafter, the output information generating unit 35 of the monitoring device 30 generates status display information (output information) using the received information, and outputs the status display information to the output device 40.

[0101] The status display information is information to be displayed on the monitoring device 30 of the operator performing monitoring. The status display information is displayed on the screen of the output device 40. As shown in Fig. 7, the status display information is information in which an alarm, a positioning device number, a name, a charging state, a positioning device radio wave state, and a GPS / GNSS radio wave state are associated with each other.

[0102] The alarm displays information indicating that the target person has entered a prohibited area or a buffer area. The positioning device number displays information indicating a number assigned to each positioning device in advance.

[0103] The name field displays information indicating the name of the subject. The charge status field displays information indicating the remaining capacity of a battery (not shown) installed in the positioning device 10 (for example, the remaining capacity level, etc.). The positioning device radio wave status field displays information indicating the strength of radio waves transmitted from the positioning device 10 (for example, the radio wave strength level, etc.). The GPS / GNSS radio wave status field displays information indicating the strength of radio waves transmitted from GPS / GNSS (for example, the radio wave strength level, etc.).

[0104] In the example of FIG. 7, the subject "Ksaki T" wearing the positioning device 10 with positioning device number "1" has entered a prohibited area, so a "circle" indicating that the subject has entered a prohibited area is displayed in the prohibited area of the alarm. Note that if the subject leaves the prohibited area, the "circle" is removed. Also, the display is not limited to "circle", and any display or output (such as audio) that can warn the subject that they have entered a prohibited area may be used.

[0105] Furthermore, subjects who have entered prohibited areas are displayed with the highest priority. For example, they are displayed at the top of the table in Figure 7. Also, since subjects may repeatedly enter prohibited areas, the number of times the subject has entered prohibited areas may be displayed.

[0106] In the example of FIG. 7, the subject "H Child, S Inn" wearing the positioning device 10 with positioning device number "2" has entered the buffer zone, so a "circle" indicating that the subject has entered the buffer zone is displayed in the buffer zone. If the subject leaves the buffer zone, the "circle" is removed. The display is not limited to a "circle" and may be any display or output (such as a sound) that can warn the subject that they have entered the buffer zone.

[0107] Furthermore, if no subject has entered the restricted area, subjects who have entered the buffer area are displayed with the highest priority. Also, since a subject may repeatedly enter the buffer area, the number of times the subject has entered the buffer area may be displayed.

[0108] The intrusion route display information will be described. 8 is a diagram for explaining an example of intrusion route display information. The output information generating unit 35 generates the intrusion route display information as output information and outputs it to the output device 40. Intrusion route display information Output.

[0109] The intrusion route display information is displayed to the operator monitoring the target. The intrusion route display information is displayed on the screen of the output device 40. If the target enters a no-entry area or buffer zone, the intrusion route display information displays the target's current location. As shown in FIG. 8, it is conceivable to display the target's location from the time of intrusion to the present time in chronological order on a map (▲). However, the display of the target's location is not limited to "▲".

[0110] The detailed intruder display information will now be described. 9 is a diagram for explaining an example of intruder detail display information. The output information generating unit 35 generates intruder detail display information as output information.

[0111] FIG. 9 shows detailed intruder information for "Kasaki T-ro," a target who entered a no-entry area and is wearing a positioning device 10 with a positioning device number "1."

[0112] The intruder detailed display information is displayed to the operator monitoring the target person. The intruder detailed display information is displayed on the screen of the output device 40. The intruder detailed display information is information that associates the intruder's name, positioning device number, name and address of the no-entry area, name and address of the buffer area, image of the intruder, and detailed information of the intruder (address, date of birth, physical characteristics, etc.).

[0113] [Device operation] The operation of the positioning device will now be described. FIG. 10 is a diagram for explaining an example of the operation of a positioning device. In the following description, the diagram will be referred to as appropriate. In the embodiment, the positioning method is implemented by operating the positioning device. Therefore, the description of the positioning method in the embodiment will be replaced by the following description of the operation of the positioning device.

[0114] Communication unit 16 receives a positioning request from relay device 20 (step A1). Next, when control unit 13 receives the positioning request from communication unit 16, it outputs an instruction to generate unit 12 to start positioning (step A2).

[0115] Next, the generation unit 12 generates position information (first position information) representing the position (latitude and longitude) of the subject and date and time information (first date and time information) representing the date and time of positioning by performing a positioning process using satellite signals (step A3).

[0116] Next, the control unit 13 acquires the positioning result (the first position information and / or the first date and time information) generated by the generation unit 12. Next, the control unit 13 outputs the positioning result to the change unit 14.

[0117] Next, if the current location (positioning result) of the subject is included in a privacy violation area including a location that violates the subject's privacy, the change unit 14 changes the positioning result (the first location information and / or the first date and time information) (step A4). However, if the current location (positioning result) of the subject is not included in a privacy violation area including a location that violates the subject's privacy, the change unit 14 does not change the positioning result.

[0118] The modification of the positioning results is a process that makes it difficult to identify that the subject was in a position that violates the subject's privacy. The modifications include the above-mentioned (1) process of deleting the positioning results in the privacy violation area, (2) process of disturbing the positioning results in the privacy violation area by adding random numbers to the positioning results, and (3) process of degrading the positioning results in the privacy violation area.

[0119] Next, when the current position (positioning result) of the target person is included in the entry prohibited area or buffer area, the determination unit 15 generates entry prohibited area information or buffer area information indicating that the target person has entered (step A5).

[0120] Furthermore, in step A5, if the current location (positioning result) of the target person is not included in the entry prohibited area or buffer area, the determination unit 15 generates entry prohibited area information or buffer area information indicating that the target person has not entered.

[0121] It is desirable to execute steps A4 and A5 in parallel as shown in Fig. 10. However, they do not have to be executed in parallel. Also, the processing of step A4 may be omitted.

[0122] Next, communication unit 16 acquires the positioning result that has been subjected to degradation processing from control unit 13. Communication unit 16 also acquires entry-prohibited area information or buffer zone information from determination unit 15. Then, communication unit 16 transmits the positioning result that has been subjected to degradation processing and the entry-prohibited area information or buffer zone information to relay device 20 (step A6).

[0123] Next, the notification unit 17 notifies the target person that they have entered a prohibited area or a buffer zone (step A7). If the positioning device 10 has a screen, the notification unit 17 generates information for displaying that they have entered a prohibited area or a buffer zone, and displays on the screen based on the generated information that they have entered a prohibited area or a buffer zone.

[0124] As another notification method, the positioning device 10 may be vibrated. Alternatively, the positioning device 10 may be provided with an LED or the like to notify by light. Furthermore, the positioning device 10 may be provided with a speaker to notify by voice.

[0125] The operation of the monitoring device will now be described. 11 and 12 are diagrams for explaining an example of the operation of the monitoring device. In the following description, the diagrams will be referred to as appropriate. In the embodiment, the monitoring method is implemented by operating the monitoring device. Therefore, the description of the monitoring method in the embodiment will be replaced by the description of the operation of the monitoring device below.

[0126] First, the generation of privacy invading area setting information, intrusion prohibited area setting information, and buffer area setting information will be described with reference to FIG.

[0127] The monitoring device 30 first detects a privacy violation area. Configuration information Then, the intrusion-prohibited area setting information and the buffer area setting information are generated (step B1).

[0128] Specifically, in step B1, the privacy violation area setting information generation unit 31 generates privacy violation area setting information for setting a privacy violation area that is expected to violate the privacy of the subject under surveillance in the positioning device 10 worn by the subject.

[0129] Also, in step B1, the no-entry area setting information generating unit 32 generates no-entry area setting information for setting no-entry areas in the positioning device 10 based on the reason why the target person came to be monitored.

[0130] Also, in step B1, the buffer zone setting information generating unit 33 generates buffer zone setting information for setting a buffer zone in the positioning device 10 around the entry-prohibited zone.

[0131] Next, the monitoring device 30 transmits the privacy invading area setting information, the entry prohibition area setting information, and the buffer area setting information to the positioning device 10 (step B2).

[0132] In step B2, specifically, the privacy violating area setting information generating unit 31 transmits the privacy violating area setting information to the positioning device 10 via the communication unit .

[0133] In step B2, the no-entry area setting information generating unit 32 transmits the no-entry area setting information to the positioning device 10 via the communication unit .

[0134] In step B2, the buffer zone setting information generating unit 33 transmits, via the communication unit 34, to the positioning device 10, buffer zone setting information for setting a buffer zone.

[0135] Thereafter, when the positioning device 10 receives the privacy violation area setting information, it sets a privacy violation area based on the received privacy violation area setting information. Alternatively, when the positioning device 10 receives the entry-prohibited area setting information, it sets an entry-prohibited area based on the entry-prohibited area setting information. Alternatively, when the positioning device 10 receives the buffer area setting information, it sets a buffer area based on the buffer area setting information.

[0136] Next, an output that notifies the operator that a target person has entered a restricted area or a buffer area will be described with reference to FIG.

[0137] The monitoring device 30 receives the entry-prohibited area information or buffer zone information from the positioning device 10 via the relay device 20 (step C1). Next, when the output information generation unit 35 receives the entry-prohibited area information, it generates output information to the output device 40 indicating that the target person has entered the entry-prohibited area, and when it receives the buffer zone information, it outputs output information to the output device 40 indicating that the target person has entered the buffer zone (step C2). The output information is, for example, information such as status display information, entry route display information, and intruder detail display information.

[0138] [Effects of the embodiment] In the embodiment, in a privacy violation area, the privacy of a subject can be protected by degrading the location information and / or the date and time information through degradation processing.

[0139] Furthermore, according to the embodiment, it is possible to eliminate human errors and arbitrariness, and also to ensure appropriateness by having a neutral third party certify tamper resistance, which means resistance to external analysis and tampering.

[0140] Furthermore, according to the embodiment, even if there is a risk that the subject may escape, it is possible to detect that the subject has entered a restricted area or a buffer area, so that the subject's escape can be detected in advance and the subject's escape can be prevented.

[0141] Furthermore, according to the embodiment, a no-entry zone or a buffer zone can be set depending on the gender, nationality, and crime of the subject, a request from the victim, and a request from the subject.

[0142] Furthermore, since it is possible to detect when a target person enters a restricted area or a buffer area, the target person can be notified, and as a result, the target person's actions can be restricted.

[0143] Furthermore, if a target person enters a restricted area or a buffer area, the monitoring device 30 can notify the victim or people involved in the damage and have them evacuate, thereby preventing further damage.

[0144] [program] The program for the positioning device 10 in the embodiment may be any program that causes a computer to execute steps A1 to A7 shown in Fig. 10. By installing and executing this program on a computer, the positioning device and positioning method in the embodiment can be realized. In this case, the processor of the computer functions as a generation unit 12, a control unit 13, a change unit 14, a determination unit 15, and a notification unit 17 and performs processing.

[0145] The program for the positioning device 10 according to the embodiment may be executed by a computer system constructed by a plurality of computers, in which case, for example, each computer may function as one of the generating unit 12, the control unit 13, the changing unit 14, the determining unit 15, and the notifying unit 17.

[0146] The program for the monitoring device 30 in the embodiment may be any program that causes a computer to execute steps B1 to B2 and C1 to C2 shown in Figure 11. By installing and executing this program on a computer, the positioning device and positioning method in the embodiment can be realized. In this case, the processor of the computer functions as a privacy infringement area setting information generation unit 31, a no-trespassing area setting information generation unit 32, a buffer area setting information generation unit 33, and an output information generation unit 35, and performs processing.

[0147] The program for the positioning device 10 according to the embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as one of the privacy invading area setting information generating unit 31, the no-entry area setting information generating unit 32, the buffer area setting information generating unit 33, and the output information generating unit 35.

[0148] [Physical configuration] Here, a computer that realizes a positioning device or a monitoring device by executing a program in the embodiment will be described with reference to Fig. 13. Fig. 13 is a diagram for explaining an example of a computer that realizes a positioning device or a monitoring device in the embodiment.

[0149] 13, the computer 110 includes a CPU 111, a main memory 112, a storage device 113, an input interface 114, a display controller 115, a data reader / writer 116, and a communication interface 117. These components are connected to each other via a bus 121 so as to be able to communicate data with each other. Note that the computer 110 may include a GPU (Graphics Processing Unit) or an FPGA in addition to or instead of the CPU 111.

[0150] The CPU 111 loads the program (code) of this embodiment stored in the storage device 113 into the main memory 112 and executes it in a predetermined order to perform various calculations. The main memory 112 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory). The program of this embodiment is provided in a state stored in a computer-readable recording medium 120. The program of this embodiment may be distributed over the Internet connected via the communication interface 117. The recording medium 120 is a non-volatile recording medium.

[0151] Specific examples of the storage device 113 include a hard disk drive and a semiconductor storage device such as a flash memory. The input interface 114 mediates data transmission between the CPU 111 and input devices 118 such as a keyboard and a mouse. The display controller 115 is connected to a display device 119 and controls the display on the display device 119.

[0152] The data reader / writer 116 mediates data transmission between the CPU 111 and the recording medium 120, reads programs from the recording medium 120, and writes processing results from the computer 110 to the recording medium 120. The communication interface 117 mediates data transmission between the CPU 111 and other computers.

[0153] Specific examples of the recording medium 120 include general-purpose semiconductor storage devices such as CF (Compact Flash (registered trademark)) and SD (Secure Digital), magnetic recording media such as flexible disks, or optical recording media such as CD-ROMs (Compact Disk Read Only Memory).

[0154] The positioning device 10 in the embodiment can be realized by using hardware corresponding to each part, instead of a computer on which a program is installed. Furthermore, the positioning device 10 may be partially realized by a program and the remaining part by hardware.

[0155] [Note] The following supplementary notes are further provided with respect to the above-described embodiments. Some or all of the above-described embodiments can be expressed by (Supplementary Note 1) to (Supplementary Note 25) described below, but are not limited to the following descriptions.

[0156] (Appendix 1) The positioning device If the location of a subject under surveillance is included in a no-entry area set based on the reason why the subject came to be monitored, generating no-entry area information including location information indicating the location of the subject and no-entry information indicating that the subject has entered the no-entry area; If the location of the target person is included in a buffer zone set around the intrusion-prohibited zone, buffer zone information is generated that includes the location information and buffer information indicating that the target person has intruded into the buffer zone; If the location of the target person is included in the no-entry area, transmit the no-entry area information to a monitoring device, and if the location of the target person is included in the no-entry area, transmit the buffer area information to a monitoring device. The monitoring device When the entry-prohibited area information is received, an output device generates output information indicating that the target person has entered the entry-prohibited area, and when the buffer area information is received, an output device generates output information indicating that the target person has entered the buffer area. Surveillance system.

[0157] (Appendix 2) a determination unit that determines whether the location of a subject under surveillance is included in a no-entry area that has been set based on the reason why the subject has come under surveillance, and if the location of the subject is included in the no-entry area, generates no-entry area information having location information that indicates the location of the subject and no-entry information that indicates that the subject has entered the no-entry area, and if the location of the subject is included in a buffer area that has been set around the no-entry area, generates buffer area information having the location information and buffer information that indicates that the subject has entered the buffer area; a notification unit that notifies the target person that they have entered the prohibited area or the buffer area; A positioning device having the above configuration.

[0158] (Appendix 3) 3. The positioning device of claim 2, If the subject is on bail or parole, the no-entry area is set to an area that includes facilities that are expected to be used for escape while on bail or parole. Positioning device.

[0159] (Appendix 4) 4. The positioning device of claim 3, If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. Positioning device.

[0160] (Appendix 5) 4. The positioning device of claim 3, The buffer zone is set in an area that is expected to be used by the target person to invade the prohibited area. Positioning device.

[0161] (Appendix 6) a determining step of determining whether the location of a subject under surveillance is included in a no-entry area set based on the reason why the subject came to be monitored, and if the location of the subject is included in the no-entry area, generating no-entry area information having location information indicating the location of the subject and no-entry information indicating that the subject has entered the no-entry area, and if the location of the subject is included in a buffer area set around the no-entry area, generating buffer area information having the location information and buffer information indicating that the subject has entered the buffer area; a notification step of notifying the target person that they have entered the prohibited area or the buffer area; A positioning method having the following features.

[0162] (Appendix 7) 7. The positioning method according to claim 6, further comprising: If the subject is on bail or parole, the no-entry area is set to an area that includes facilities that are expected to be used for escape while on bail or parole. Positioning method.

[0163] (Appendix 8) 8. The positioning method according to claim 7, further comprising: If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. Positioning method.

[0164] (Appendix 9) 8. The positioning method according to claim 7, further comprising: The buffer zone is set in an area that is expected to be used by the target person to invade the prohibited area. Positioning method.

[0165] (Appendix 10) On the computer, a determining step of determining whether the location of the subject under surveillance is included in a no-entry area set based on the reason why the subject came to be monitored, and if the location of the subject is included in the no-entry area, generating no-entry area information having location information indicating the location of the subject and no-entry information indicating that the subject has entered the no-entry area, and if the location of the subject is included in a buffer area set around the no-entry area, generating buffer area information having the location information and buffer information indicating that the subject has entered the buffer area; a notification step of notifying the target person that they have entered the prohibited area or the buffer area; A program containing instructions to execute Hmm.

[0166] (Appendix 11) As described in Appendix 10 program And, If the subject is on bail or parole, the no-entry area is set to an area that includes facilities that are expected to be used for escape while on bail or parole. program .

[0167] (Appendix 12) As described in Appendix 11 program And, If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. program .

[0168] (Appendix 13) As described in Appendix 11 program And, The buffer zone is set in an area that is expected to be used by the target person to invade the prohibited area. program .

[0169] (Appendix 14) Based on the reasons why the person under surveillance is being monitored configured a no-entry area setting information generating unit that generates no-entry area setting information for setting no-entry areas in the positioning device; a buffer zone setting information generating unit that generates buffer zone setting information for setting a buffer zone around the intrusion prohibited zone; a communication unit that transmits the no-entry area setting information and the buffer area setting information to the positioning device; A monitoring device having:

[0170] (Appendix 15) 15. The monitoring device of claim 14, If the subject is out on bail or parole, the no-entry area is set to an area including facilities that are expected to be used for escape while out on bail or parole. monitoring equipment.

[0171] (Appendix 16) 16. The monitoring device of claim 15, If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. monitoring equipment.

[0172] (Appendix 17) 17. The monitoring device of any one of claims 14 to 16, a communication unit that receives, from the positioning device, entry-prohibited area information having location information indicating the location of the target person and entry-prohibited information indicating that the target person has entered the entry-prohibited area, or buffer area information having location information indicating the location of the target person and buffer information indicating that the target person has entered the buffer area; an output information generation unit that, when receiving the entry-prohibited area information, generates, on an output device, output information indicating that the target person has entered the entry-prohibited area, and, when receiving the buffer zone information, generates, on the output device, output information indicating that the target person has entered the buffer zone; A monitoring device having:

[0173] (Appendix 18) is under surveillance Based on the reason why the subject was monitored configured a no-entry area setting information generating step of generating no-entry area setting information for setting the no-entry area in the positioning device; a buffer zone setting information generating step of generating buffer zone setting information for setting a buffer zone around the intrusion prohibition zone; a transmitting step of transmitting the no-entry area setting information and the buffer area setting information to the positioning device; A monitoring method comprising:

[0174] (Appendix 19) 19. The monitoring method of claim 18, further comprising: If the subject is out on bail or parole, the no-entry area is set to an area including facilities that are expected to be used for escape while out on bail or parole. Monitoring method.

[0175] (Appendix 20) 19. The monitoring method of claim 18, further comprising: If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. Monitoring method.

[0176] (Appendix 21) 21. The monitoring method of any one of claims 18 to 20, comprising: a communication step of receiving, from the positioning device, entry-prohibited area information having location information indicating the location of the target person and entry-prohibited information indicating that the target person has entered the entry-prohibited area, or buffer area information having location information indicating the location of the target person and buffer information indicating that the target person has entered the buffer area; an output information generating step of generating, on an output device, output information indicating that the target person has entered the target area when the target area information is received, and generating, on the output device, output information indicating that the target person has entered the buffer area when the target area information is received; A monitoring method comprising:

[0177] (Appendix 22) On the computer, Being under surveillance Based on the reason why the subject was monitored configured a no-entry area setting information generating step of generating no-entry area setting information for setting the no-entry area in the positioning device; a buffer zone setting information generating step of generating buffer zone setting information for setting a buffer zone around the intrusion prohibition zone; a transmitting step of transmitting the no-entry area setting information and the buffer area setting information to the positioning device; A program containing instructions to execute Hmm.

[0178] (Appendix 23) As described in Appendix 22 program And, If the subject is out on bail or parole, the no-entry area is set to an area including facilities that are expected to be used for escape while out on bail or parole. program .

[0179] (Appendix 24) As described in Appendix 23 program And, If the subject is on bail or parole, the restricted area will be set in an area that includes facilities that are assumed to be related to the victim and / or related parties to the victim who are related to the subject. program .

[0180] (Appendix 25) Any one of appendices 22 to 24 program And, The computer, a communication step of receiving, from the positioning device, entry-prohibited area information having location information indicating the location of the target person and entry-prohibited information indicating that the target person has entered the entry-prohibited area, or buffer area information having location information indicating the location of the target person and buffer information indicating that the target person has entered the buffer area; an output information generating step of generating, on an output device, output information indicating that the target person has entered the target area when the target area information is received, and generating, on the output device, output information indicating that the target person has entered the buffer area when the target area information is received; A program containing instructions to execute Hmm.

[0181] Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. [Industrial Applicability]

[0182] As described above, the present invention prevents the subject under surveillance from escaping and protects the subject's privacy. The present invention is useful in fields where GPS / GNSS positioning is required.

[0183] This application claims priority based on Japanese Patent Application No. 2021-200004, filed on December 9, 2021, the disclosure of which is incorporated herein in its entirety. [Explanation of symbols]

[0184] 10 Positioning device 11 Antenna section 12 Generation part 13 Control Unit 14 Changes 15 Judgment section 16 Communications Department 17 Notification Department 20 Relay device 30 Monitoring equipment 31 Privacy infringement area setting information generation unit 32 No-entry area setting information generation unit 33 Buffer area setting information generation unit 34 Communications Department 35 Output information generation unit 40 Output Devices 110 Computer 111 CPU 112 main memory 113 Storage device 114 Input Interface 115 Display Controller 116 Data Reader / Writer 117 Communication Interface 118 Input Devices 119 Display Device 120 Recording Media 121 Bus

Claims

1. a determining means for determining whether the location of a subject on bail or parole who is under surveillance is within a no-entry area that has been set based on the reason why the subject has come under surveillance and that includes facilities that are expected to be used for escape while on bail or parole, and if the location of the subject is within the no-entry area, generating no-entry area information that has location information indicating the location of the subject and no-entry information indicating that the subject has entered the no-entry area, and if the location of the subject is within a buffer area set around the no-entry area, generating buffer area information that has the location information and buffer information indicating that the subject has entered the buffer area; a notification means for notifying the target person that the target person has entered the prohibited area or the buffer area; A positioning device having the above configuration.

2. The positioning device according to claim 1 , The no-entry area will be set in an area that includes the victim and / or the victim-related person related to the target person, or facilities that are assumed to be related to either of them. Positioning device.

3. 3. The positioning device according to claim 1 or 2, The buffer zone is set in an area that is expected to be used by the target person to invade the prohibited area. Positioning device.

4. The computer Determine whether the location of a subject on bail or parole who is under surveillance is within a no-entry area that has been established based on the reason why the subject has come under surveillance and that includes facilities that are expected to be used for escape while on bail or parole; if the location of the subject is within the no-entry area, generate no-entry area information that has location information that represents the location of the subject and no-entry information that represents that the subject has entered the no-entry area; if the location of the subject is within a buffer area that has been established around the no-entry area, generate buffer area information that has the location information and buffer information that represents that the subject has entered the buffer area; notifying the subject that they have entered a restricted or buffered area; Positioning method.

5. On the computer, Determine whether the location of a subject on bail or parole who is under surveillance is within a no-entry area that has been set based on the reason why the subject has come under surveillance and that includes facilities that are expected to be used for escape while on bail or parole; if the location of the subject is within the no-entry area, generate no-entry area information that has location information that represents the location of the subject and no-entry information that represents an intrusion into the no-entry area; if the location of the subject is within a buffer area set around the no-entry area, generate buffer area information that has the location information and buffer information that represents an intrusion into the buffer area; notifying the subject that he or she has entered the prohibited area or the buffer zone; A program containing instructions.

Images