JP4853487B2 - Position detection system and position detection program - Google Patents

Description

  The present invention relates to a location detection system and a location detection program.

  In many cases, functional spaces installed in facilities such as conference rooms are provided so as to be used as a plurality of conference rooms by partitioning. For example, not only one large conference room but also three small conference rooms or one small conference room and one middle conference room by using a partition. It is possible to divide the network into different areas and use different types of meetings in each space. Conventionally, techniques for managing such functional spaces in a hierarchical structure and applying them to various usage forms have been proposed (for example, Patent Documents 1 and 2).

  For example, in Patent Document 1, a region for capturing a position is represented by a hierarchical structure, and content sharing depending on a user's position can be performed by performing access control and content life cycle management for content that can be used in each position hierarchy. The technology to do is described. Further, in Patent Document 2, by defining a position information database consisting of a hierarchical structure of five layers ranging from spatial coordinate information to abstraction ranging from space-independent names and various identifiers, A technique is described in which the position is managed not only by coordinate information such as latitude and longitude but also by linking to various positional information expressions such as an address and a room name.

JP 2007-109207 A JP 2007-122455 A

By the way, it is possible to grasp various forms (large, medium, small conference rooms, etc.) that the space can take by creating a database of the hierarchical structure of the space such as a conference room. It was difficult to identify the relationship between usage patterns and individual locations.

  It is an object of the present invention to automatically specify the current usage form of a facility space and the location of each individual.

The position detection system according to claim 1 is a facility that can be used by dividing the interior into a plurality of spaces, and the space where each user is currently located inside the facility that can change the division state of the interior space. Current position information storage means for storing current position information for specifying the position, division state specifying means for specifying a space currently formed from the division state of the facility, and a position for detecting the location of each user in the facility It includes information that can identify the detection means and the location of the user detected by the location detection means by detecting the movement of any user within the facility. When the movement information acquisition unit acquires the movement information and the movement information acquisition unit acquires the movement information, the location information included in the movement information and the division state specifying unit specify the movement information. Based on the currently formed space, a space specifying means for specifying the space where the user is located, a space specified by the space specifying means, and the current position information storing means stored in the current position information storage means When it is determined that the user has moved to a different space because the space where the user is located identified from the user's current location information does not match, the current location information is stored in the current location information storage means. And position information generating means for updating the current position information of the user.

The position detection program according to claim 2 is a facility that can be used by dividing the interior into a plurality of spaces, and the space where each user is currently located inside the facility that can change the division state of the interior space. the be accessible to the current position information storage means for storing current location information identifying the one or more computers included in the position detection system to identify the space currently formed from the split state of facilities The divided state specifying means, the location detecting means for detecting the location of each user in the facility, the user who has moved by detecting the movement of any user in the facility, and the location detecting means Movement information acquisition means for acquiring movement information including information capable of specifying the detected location of the user, and when the movement information acquisition means acquires the movement information The space specifying means for specifying the space where the user is located based on the location included in the movement information and the currently formed space specified by the division state specifying means, the space specifying The user is different because the space specified by the means and the space where the user is located specified from the current position information of the user stored in the current position information storage means do not match. If it is determined that the movement in space, the is intended for positioning information generating means for updating the current location information of the user stored in the current position information storage means functions as a.

  According to the first and second aspects of the present invention, it is possible to automatically specify the current space use form and the individual location.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.

  FIG. 1 is an overall configuration diagram showing an embodiment of a location detection system according to the present invention. In the present embodiment, a conference room will be described as an example of a facility capable of performing a meeting in each space formed by dividing the space. Note that when a facility is regarded as a building, a conference room corresponds to a facility or space (also referred to as an “area”) that forms part of the facility. Since the usage situation is described as not being detected, “facility” and “conference room” may be considered synonymous.

  FIG. 2 is a conceptual diagram of a conference room used by a user for a meeting in the present embodiment. On the building, one conference room can be used as it is as one large conference room (meeting room 123), and by using a partition, conference rooms 1 and 2 (medium conference room 12) and a small conference room 3, Alternatively, it can be divided into a small conference room 1 and conference rooms 2 and 3 (medium conference room 23), and a smaller conference room (small conference rooms 1, 2 and 3 with the smallest unit). It is. The hierarchical structure of each conference room constituting the conference room may be illustrated as shown in FIG. As apparent from FIG. 3, in addition to the physically existing conference room, the virtual conference room 12 and the conference room 23 are also defined in the hierarchical relationship of the conference rooms.

  Returning to FIG. 1, the system configuration will be described. The location detection system according to the present embodiment includes a location detection sensor management server 20, a facility state sensor management server 30, a conference room reservation management server 40, a location information management server 50, and a location. A detection server 60 is included. The servers 20 to 60 are connected via the network 12. In FIG. 1, the network 12 is illustrated as a LAN (Local Area Network), but it is not necessary to limit the network 12 to a local area.

  A position detection sensor 21 disposed in the facility is connected to the position detection sensor management server 20. Employees, visitors, etc. (hereinafter collectively referred to as “members”) to be monitored in this system are employee IDs (in the case of visitors, visitor IDs, hereinafter referred to collectively as “employee IDs”). ) Is always carried when traveling within the facility. The employee ID card includes a wireless tag that transmits information such as an employee number that can identify each individual. As shown in FIG. 2, the position detection sensors 21a, 21b, and 21c are arranged in the small meeting rooms 1, 2, and 3, respectively, which are the minimum unit of division, and are sent from the employee IDs in the meeting rooms 1, 2, and 3, respectively. A call signal is received and who is located in which conference room 1, 2, 3 is specified. In FIG. 2, for convenience, only one small meeting room 1, 2, 3 is illustrated, but in this embodiment, the meeting room user uses which small meeting room 1, 2, 3 in the meeting room. Therefore, it is only necessary to know whether the position detection sensor 21 is located in the space corresponding to the above. Therefore, the arrangement and the number of the position detection sensors 21 are not limited to the example shown in FIG.

  The facility state sensor management server 30 is connected to a facility state sensor 31 provided for detecting the presence or absence of a partition partitioning the conference room. In the present embodiment, as described above, since one conference room (large conference room 123) has a structure that can be divided into three, the facility state sensors 31a and 31b include the conference room 1 and the conference room 2, respectively. The presence or absence of each partition between the conference room 2 and the conference room 3 is detected to identify how the conference room (large conference room 123) is divided. In FIG. 2, it is illustrated that a sensor for detecting the presence or absence of a partition is used. However, in the present embodiment, it is only necessary to know the division state of the conference room. It is not limited to the example of 2. The facility state sensor 31 may be realized by various configurations such as contact with a partition or non-contact using light or imaging.

  FIG. 4 is a hardware configuration diagram of a server computer forming the position detection server 60 in the present embodiment. The position detection server 60 may be configured by general-purpose hardware that has existed in the past. That is, the server computer is provided as a CPU 1, a ROM 2, a RAM 3, an HDD controller 5 connected to a hard disk drive (HDD) 4, a mouse 6 and a keyboard 7 provided as input means, and a display device as shown in FIG. An input / output controller 9 for connecting each display 8 and a network controller 10 provided as a communication means are connected to an internal bus 11.

  Note that the hardware configurations of the position detection sensor management server 20, the facility state sensor management server 30, the position information management server 50, and the position detection server 60 may be the same as those in FIG.

  FIG. 5 is a block configuration diagram of the location detection system in the present embodiment. FIG. 5 shows only the components used for explaining the present embodiment. The position detection server 60 includes a space change information acquisition unit 61, a division state information update unit 62, a movement information acquisition unit 63, a position information generation unit 64, a position log information registration unit 65, a division state information storage unit 66, and a current position information storage. A unit 67 and a hierarchical structure information storage unit 68. The space change information acquisition unit 61 acquires the space change information received from the facility state sensor management server 30 by receiving the space change information. The division state information update unit 62 detects the presence / absence of a change in the division state of the conference room based on the space change information acquired by the space change information acquisition unit 61. The division state information storage unit 66 stores division state information for specifying the division state of the conference room. However, when the division state information update unit 62 further detects a change in the division state, Then, division state information is generated based on the space change information, and the division state information corresponding to the space stored in the division state information storage unit 66 in which the division state has changed is updated with the generated division state information. . The hierarchical structure information storage unit 68 stores hierarchical structure information in which a hierarchical structure as shown in FIG. 2 is defined. The hierarchical structure information is created in advance by an administrator or the like and registered in the hierarchical structure information storage unit 68. The hierarchical structure information storage unit 68 will be described in detail later. In the present embodiment, the division specifying means includes the above-described components 61, 62, 66, 68, the facility state sensor management server 30, and the facility state sensor 31.

  Further, the movement information acquisition unit 63 acquires the movement information received from the position detection sensor management server 20 by receiving the movement information. The current position information storage unit 67 stores current position information for specifying the current location of each user in the conference room. The position information generation unit 64 includes the movement information acquired by the movement information acquisition unit 63. If it is determined that the user has moved to a different space, the current position information of the user is generated and the current position information of the user stored in the current position information storage unit 67 is updated. The location log information registration unit 65 generates location log information related to the location of the user whose movement has been recognized, and registers it in the location log information storage unit 52 by transmitting it to the location information management server 50. In the present embodiment, the position information generating means includes the above-described components 63, 64, 65, 67, the position detection sensor management server 20, and the position detection sensor 21.

  The components 61 to 65 in the position detection server 60 are realized by a cooperative operation of a computer that forms the position detection server 60 and a program that operates on the CPU 1 mounted on the computer. Further, among the storage units 66 to 68, the division state information storage unit 66 and the current position information storage unit 67 are configured by the RAM 3, and the hierarchical structure information storage unit 68 is configured by the HDD 4. The location information management server 50 includes a location log information management unit 51 and a location log information storage unit 52. When location log information is sent from the location detection server 60, the location log information management unit 51 stores the information by registering the information in the location log information storage unit 52. The location log information management unit 51 in the location information management server 50 is realized by a cooperative operation of a computer that forms the location information management server 50 and a program that operates on the CPU 1 mounted on the computer. Further, it is assumed that the position log information storage unit 52 is realized by the HDD 4.

  Further, the program used in the present embodiment may be provided by being stored in a computer-readable recording medium such as a CD-ROM or DVD-ROM as well as provided by communication means. The program provided from the communication means or the recording medium is installed in the computer, and various processes are realized by the CPU of the computer sequentially executing the installation program.

  FIG. 6 is a diagram showing a data configuration example of the hierarchical structure information stored in the hierarchical structure information storage unit 68 in the present embodiment. The hierarchical structure information includes a conference room ID for identifying a conference room, a time when the conference room is physically configured (start time), a renovation work, etc., and the conference room is physically configured. Indicates the time when it is no longer possible (end time), the conference room ID (lower conference room ID) of the conference room constituting the conference room, and whether the facility state sensor 31 is installed (True) or not (False) Each data item called sensing is set in association with each other. The facility state sensor 31 is installed only in each of the small meeting rooms 1, 2, 3, and is individually associated with the large meeting room (conference room 123) and the middle meeting room (conference room 12, meeting room 23). Therefore, as shown in FIG. 6, False is set for sensing. The setting example shown in FIG. 6 corresponds to the conference room shown in FIGS.

  FIG. 7 is a diagram illustrating a data configuration example of the division state information stored in the division state information storage unit 66 in the present embodiment. FIG. 8 is a diagram showing a data configuration example of the division state information stored in the current position information storage unit 67 in the present embodiment. Since these pieces of information are sequentially added to or updated in the storage units 66 and 67 as necessary during operation of the system, the use of these pieces of information will be described together with the explanation of the operation. Here, the data structure of each information will be described. The division state information shown in FIG. 7 includes a conference room ID for identifying a conference room, a time (start time) when the conference room is formed by division or integration, and another conference by dividing or integrating the conference room. The time (end time) when the space is changed to the room is generated in association with each other. In FIG. 7, a record whose end time is blank (actually, don't care is possible) means that the conference room is currently formed.

  On the other hand, the current location information shown in FIG. 8 includes the conference room ID (location) of the conference room located when the member m is detected in the employee ID of the member m whose employee ID is detected in the conference room. Conference room ID), time when the member m is detected (start time), and time when the member m is deemed to have left the conference room due to detection in another conference room (end) Time).

  Here, before describing the operation of the present embodiment, expressions of various types of information will be described. The space change information acquisition unit 61 acquires the space change information sent from the facility state sensor management server 30, and receives the facility state change event e as the space change information. The facility state change event e is expressed by a binary set (t, EA) representing an effective area set (EA) indicating when (t) and what kind of conference room division state has been reached. The time (t) is indicated by the time, and the effective area set (EA) is indicated by the conference room ID.

  The movement information acquisition unit 63 acquires movement information sent from the position detection sensor management server 20, and receives a position change event e as the movement information. The position change event e is expressed by a ternary set (t, m, a) that indicates when (t) and where (a) a certain member (m) has moved. The member (m) is indicated by an employee ID, and the place (a) is indicated by a conference room ID. For the position change event e, T (e), M (e), and A (e) are the time when the position is changed, the member m whose position is changed, and the area after the position change.

  In the present embodiment, an area context that is position log information as a processing result is generated. The area context is represented by a four-tuple (ts, te, m, a) that indicates when (te) and where (a) a certain member (m) was located (te). In the above four-item set, ts is an area context start time, te is an area context end time, m is an area context target member m, and a is an area context position. For area context c, TS (c) is the area context start time, TE (c) is the area context end time, M (c) is the area context target member m, and A (c) is the area context. The position of The area context is generated as current position information in addition to position log information.

  Next, the operation of the present embodiment will be described. First, as illustrated in FIG. 9, only the partition between the conference room 2 and the conference room 3 is provided as shown in FIG. 9. The description will be made assuming that the room 12 and the conference room 3 are separated. When the divided state illustrated in FIG. 9 is changed, the effective area set in the hierarchical structure of the conference room is the conference room 12 and the conference room 3. Therefore, the effective area set is a portion surrounded by a one-dot chain line 13 as shown in FIG.

  Next, processing for detecting the division state of the conference room in the present embodiment will be described.

  When the facility state sensor 31 that monitors the presence or absence of the partition detects a change in the presence or absence of the partition as the partition is moved, the facility state sensor management server 30 receives a signal transmitted by the facility state sensor 31. . Then, by analyzing the received signal, it is determined which partition of the conference room is moved, the conference room ID of the conference room currently formed is determined, and a facility state change event e is generated as space change information To do. The current time is set in t included in the facility state change event e, and the conference room IDs of the conference room 12 and the conference room 3 are set in EA according to the example of FIG. Since the conference room ID is managed by the hierarchical structure information storage unit 68 in the position detection server 60, the facility state sensor management server 30 may have the same configuration as the hierarchical structure information storage unit 68. The position detection server 60 may be inquired. Alternatively, the position detection server 60 may specify the conference room ID by sending information for determining the conference room ID of the currently formed conference room to the position detection server 60. The facility state sensor management server 30 notifies the position detection server 60 of the facility state change event e generated as described above.

  As will be described later, in the present embodiment, the facility state sensor management server 30 is required to generate the facility state change event e because the division state information update unit 62 only needs to receive the facility state change event e. You may comprise so that information may be sent to the position detection server 60, and the space state information acquisition part 61 of the position detection server 60 etc. may produce | generate the facility state change event e.

  Next, the process performed by the position detection server 60 in the process of detecting the division state of the conference room will be described using the flowchart shown in FIG.

  When the space change information acquisition unit 61 acquires the facility state change event e sent from the facility state sensor management server 30 (step 101), the division state information update unit 62 is included in the facility state change event e. A combination of effective area sets (EA) is checked (step 102). More specifically, for each detection area a located below each element of the effective area set (EA), is the product set of EA and the set of areas consisting of a and its upper area equal to 1? Can be said. In this example, since the effective area set (EA) should include the conference room IDs of the conference room 12 and the conference room 3, this combination is checked, but the conference room 12 and the conference room 3 By dividing the conference room, it can be formed without contradiction. If a facility state change event e of a combination of conference rooms that is impossible is sent from the facility state sensor management server 30, it can be assumed that a failure such as a failure of the facility state sensor 31 occurs. Such an error is notified to a contact person such as a predetermined system administrator (step 108).

  When the conference room is divided so as to maintain consistency (Y in step 103), the division state information update unit 62 then enters an entry (t0, *) whose end time is not set in the division state information storage unit 66. , EA0) is searched for (step 104). In this embodiment, unset is represented by “*”. If there is an entry (Y in step 105), (t0, *, EA0) registered in the division state information storage unit 66 is replaced with (t0, t, EA0) (step 106). In other words, t included in the facility state change event e sent from the facility state sensor management server 30 is set at the end time when the entry has not been set. As a result, the conference room entry that has been valid up to now is invalidated because the end time has not been set. The division state information update unit 62 then enters an entry (t, *, EA) in the division state information storage unit 66 in order to validate the contents of the facility state change event e sent from the facility state sensor management server 30. Is newly registered (step 107). In this entry t, t included in the facility state change event e sent from the facility state sensor management server 30 is set, and EA included in the same facility state change event e is set in EA. In this example, since the EA includes the conference room IDs of the conference room 12 and the conference room 3, the conference room 12 and the conference room 3 are entered.

  Further, if there is no corresponding entry in the search in step 104 (N in step 105), it can be determined that there is no entry to be terminated because there is no valid area set. Only the entry (t, *, EA) is newly registered.

  In addition to the process for detecting the division state of the conference room described above, the division state information update unit 62 determines where the member m inquired at the time of inquiry is located in response to the inquiry from the position information generation unit 64. Process to reply. Processing for responding to the location will be described with reference to the flowchart shown in FIG.

  When the inquiry information q = (t, m, a) is sent from the position information generation unit 64, the division state information update unit 62 accepts the inquiry (step 111). The query q specifies the query time t, the member m to be queried, and the location a where the member m is located at the query time t. For the location a, the conference room ID of any one of the conference rooms 1, 2, and 3 which is the minimum division unit in which the position detection sensor 21 is installed is designated. The division state information update unit 62 acquires the area set EA that is effective at the time t inquired by searching the division state information storage unit 66 (step 112). That is, an entry whose end time is not set at time t is extracted. Here, when the inquired location a in which the conference room ID is specified is included in the valid area set (Y in step 113), it is replied that the location a is a valid space (area) as it is. (Step 117). On the other hand, if the location a is not included in the valid area set (N in step 113), the division state information update unit 62 searches the division state information storage unit 66 for the element a1 of the EA that includes the location a in the lower order. (Step 114). If there is only one corresponding element a1 (Y in step 115), that a1 is returned as an effective space (area) (step 116). The above process will be described with a specific example as follows.

  As shown in FIG. 9, when the conference room is divided into the conference room 12 and the conference room 3 at time t, in this case, the effective area set (EA) includes the conference room 12 and the conference room 3. . Here, when the conference room 3 is designated as the location a and an inquiry is made, the relationship of a∈EA is established (Y in step 113), so the location a, that is, the member m is located in the conference room 3. (Step 117). On the other hand, when the conference room 1 or the conference room 2 is designated as the place a and the inquiry is made, the conference room 1 or the conference room 2 is not included in the effective area set (the conference room 12 or the conference room 3) (step 113). N), the effective area set including the conference room 1 or the conference room 2 in the lower order is searched (step 114). In the case of this example, as apparent from FIG. 10, there is only one conference room 12 that is one element a1 of the effective area set (Y in step 115). In response to the inquiry q in which the room 2 is designated, the member m returns a message indicating that it is located in the conference room 12 and not the conference room 1 or the conference room 2 (step 116).

  When the conference room is divided with consistency, the division state information update unit 62 returns a or a1 as the location of the member m in response to the inquiry from the position information generation unit 64. If division status information is set so that the room is divided without consistency, or if only one a1 cannot be obtained due to inappropriate inquiry content (N in step 115), an error will occur. Is returned (step 118).

  Next, processing for detecting the location of the member m will be described.

  When any of the position detection sensors 21 newly detects a signal transmitted from the employee ID card by the member m entering the meeting room or moving in the meeting room, the position detection sensor management server 20 By analyzing the received signal, it is specified which member m is the employee ID card carried, and a position change event e is generated as movement information. In other words, the position detection sensor management server 20 extracts the employee ID of the identified employee from the received signal or acquires the employee ID based on the sensor ID included in the received signal. Further, the conference room where the member m is located is identified by referring to the information regarding the installation location of the position detection sensor 21, and the conference room ID of the conference room is acquired. The location change event e is generated by setting the current time in t, the acquired employee ID in m, and the acquired conference room ID in a. As described above, the position detection sensor management server 20 holds the information necessary for generating the position change event e inside, or if not, the position detection event is obtained by inquiring the holding management server or the like. e is generated. The position detection sensor management server 20 notifies the position detection server 60 of the position change event e generated as described above.

  As will be described later, in the present embodiment, the position information generation unit 64 only needs to receive the position change event e. Therefore, the position detection sensor management server 20 stores information necessary for generating the position change event e. You may comprise so that it may send to the detection server 60 and the position change event e may be produced | generated by the movement information acquisition part 63 etc. of the position detection server 60. FIG.

  Next, the process performed by the position detection server 60 in the process of detecting the location of the member m in the conference room will be described using the flowchart shown in FIG.

  When the movement information acquisition unit 63 acquires the position change event e sent from the position detection sensor management server 20 (step 121), the position information generation unit 64 includes a space (area) included in the position change event e. The divisional state information update unit 62 is inquired about an effective area corresponding to a. The processing performed by the division state information update unit 62 in response to this inquiry is as described with reference to FIG. Then, the position information generation unit 64 substitutes the response result from the division state information update unit 62, that is, the conference room ID of the conference room where the member m is present, in the variable a1 (step 122). The position information generation unit 64 also extracts an area context corresponding to the member m included in the position change event e from the current position information storage unit 67 (step 123). Here, when the member m enters the conference room, the area context corresponding to the member m is registered in the current position information storage unit 67 (Y in step 124), and the area context When the conference room ID (a0) set to “no” matches the conference room ID (a1) obtained from the division state information update unit 62 (Y in step 125), this process is terminated. For example, when the conference room is divided into the conference room 12 and the conference room 3 as in this example, the position information is generated when the member m located at the small conference room 1 moves to the small conference room 2. The unit 64 inquires of the division state information update unit 62 about the location of the member m in response to the notification that the member m has moved to the small meeting room 2 from the position detection sensor management server 20. In response to this inquiry, a response of the conference room 12 is received. On the other hand, since the member m was in the position of the small meeting room 1 until immediately before, the information indicating that he was in the meeting room 12 should be set in the current position information storage unit 67. In such a case, a0 = a1 in step 125. That is, even if the member m in the conference room 12 moves from the conference room 1 position to the conference room 2 position, it does not actually move from the conference room 12 position. There is no need to update.

  On the other hand, if the area context corresponding to the member m is registered in the current position information storage unit 67 (Y in step 124) and a0 and a1 do not match (N in step 125), the position information The generation unit 64 determines that the member m has moved to another conference room and generates an area context (t0, t, m, a), and the location log information registration unit 65 uses the area context as location log information. The location information management server 50 is notified (step 126). That is, the position log information is generated by setting the time t included in the position change event e to the end time of the area context of the member m set in the current position information storage unit 67. Then, the position information generation unit 64 generates an area context (t, *, m, a1) in order to manage the current location of the member m, and registers it in the current position information storage unit 67 (step 127).

  When the area context corresponding to the member m is not registered in the current position information storage unit 67 (N in step 124), the position information generation unit 64 determines that the member m has entered the conference room for the first time. Then, an area context (t, *, m, a1) is generated and registered in the current position information storage unit 67 (step 127).

  When location log information is sent from the location detection server 60, the location log information management unit 51 in the location information management server 50 registers the location log information in the location log information storage unit 52. FIG. 14 shows a data configuration example of the position log information accumulated in the position log information storage unit 52 as described above.

  The system administrator or the like refers to the location log information easy stored in the location log information storage unit 52 when it is desired to know who was in which conference room when performing organizational analysis, and also to determine the division status of the conference room. do it.

Embodiment 2. FIG.

  FIG. 15 is a block configuration diagram of the location detection system in the present embodiment. In addition, the same code | symbol is attached | subjected to the same component as Embodiment 1, and description is abbreviate | omitted. The position detection server 60 in the present embodiment includes a conference room reservation information acquisition unit 69 that acquires conference room reservation information from the conference room reservation management server 40 instead of the space change information acquisition unit 61, and also stores division state information. The part 66 becomes unnecessary.

  In the first embodiment described above, the facility state sensor 31 and the facility state sensor management server 30 that manages the facility state sensor 31 as the division state specifying means, the space change information acquisition unit 61 in the position detection server 60, the division state information update unit 62, the division state An information storage unit 66 and a hierarchical structure information storage unit 68 are provided, and the state of use of the conference room by the member is detected by causing the facility state sensor 31 to detect a change in the partition state. In the present embodiment, the use state of the conference room by the member may be specified by referring to the existing conference room reservation information managed by the conference room reservation management server 40 instead of the facility state sensor 31.

  FIG. 16 is a diagram showing a data configuration example of conference room reservation information managed by the conference room reservation management server 40 of the present embodiment. The conference room reservation information is stored in the conference room reservation information means of the conference room reservation management server 40, and the start time and end time for specifying the reserved period in the conference room ID of the reserved conference room, Reservants and participants set by employee IDs, and the usage of the conference room are generated in association with each other. By referring to the conference room reservation information, the time series change of the conference room reservation status and the conference room division state may be specified as in the present embodiment.

  In the present embodiment, when the change in the location of the member m is detected by one of the position detection sensors 21 and a position change event is sent from the position detection sensor management server 20, as in the first embodiment. The division state information update unit 62 returns the conference room (area) in which the member m is present in response to the inquiry from the position information generation unit 64, but in the first embodiment, the conference room (area) in which the member m is present. Only the acquisition method is different. Hereinafter, processing for returning the location of the member m will be described with reference to the flowchart shown in FIG. In the first embodiment, the same step number is assigned to the same process as the process shown in FIG. 12 corresponding to this process, and the description is omitted as appropriate.

  When the inquiry information q = (t, m, a) is sent from the position information generation unit 64, the division state information update unit 62 accepts the inquiry (step 111). Then, the conference room reservation information acquisition unit 69 acquires an area set EA effective at the time t from the conference room reservation management server 40 by sending an acquisition request for conference room reservation information including the time t included in the inquiry. (Step 119). The conference room reservation management server 40 uses the conference room ID set in the conference room reservation information including the time t sent between the start time and the end time as a valid area set EA. It will reply to 60.

  Since the process (steps 113 to 118) in the division state information update unit 62 after obtaining a valid area set EA is the same as that in the first embodiment, the description thereof is omitted.

  Further, since the processes other than those described above, that is, the processes described with reference to FIG. 11 and the processes in the position information generation unit 64 described with reference to FIG.

Embodiment 3 FIG.

  FIG. 18 is a block configuration diagram of the location detection system in the present embodiment. In addition, the same code | symbol is attached | subjected to the same component as Embodiment 1, and description is abbreviate | omitted. The position information generation unit 64 in this embodiment inquires of the division state information update unit 62 about an effective area corresponding to the space (area) a included in the position change event e in step 122 of FIG. In the embodiment, this inquiry is not performed. When the division state information update unit 62 detects a change in the division state of the conference room instead of being inquired, the division state information update unit 62 positions the division log information including the previous division state of the conference room as a part of the position log information. It is registered in the information management server 50. As described above, in the present embodiment, the processing contents of the division state information update unit 62 and the position information generation unit 64 are different from those in the first embodiment.

  First, the process for detecting the division state of the conference room in the present embodiment will be described. The facility state sensor management server 30 detects a change in the presence / absence of a partition of the conference room, and detects the facility state change event e as the position detection server 60. Since the process up to the notification to is the same as in the first embodiment, the description thereof is omitted.

  Next, the process performed by the position detection server 60 in the process of detecting the division state of the conference room will be described using the flowchart shown in FIG. FIG. 19 is a diagram corresponding to FIG. 11 of the first embodiment. The same processes as those in the first embodiment are denoted by the same step numbers, and description thereof will be omitted as appropriate. This embodiment is different from the first embodiment in that the process of step 109 is added.

  In other words, the division state information update unit 62 checks the combination of the set of effective areas (EA) included in the facility state change event e acquired by the space change information acquisition unit 61 and keeps the conference room consistent. In the case of such division, the presence / absence of an entry (t0, *, EA0) whose end time is not set is searched in the division state information storage unit 66 (steps 101 to 104). If there is an entry, the end time has not been set by replacing (t0, *, EA0) registered in the division state information storage unit 66 with (t0, t, EA0). The conference room entry that was valid until now is invalidated (step 106).

  Then, the division state information update unit 62 in the present embodiment generates division log information (t0, t, a, ea), and the location log information registration unit 65 sends the division log information to the location information management server 50. Notification is made (step 109). More specifically, for each detection area a included below each element of EA0, a set of the area consisting of the detection area a and its upper area and the EA is obtained, and only one element ea is obtained. Then, the divided log information (t0, t, a, ea) is generated. In this example, since the effective area set (EA) should include the conference room IDs of the conference room 12 and the conference room 3, the area set EA0 that has been valid until just before the conference room 12 and the conference room 12 The conference room ID of the conference room corresponding to the division state before being divided into the rooms 3 is set. In addition, the times t0 and t included in the divided log information are the start time and the end time when the conference room is formed by division or integration. Further, a is set to one of the conference rooms 1, 2, and 3 in which the member m is detected by the position detection sensor 13. The division state information update unit 62 then enters an entry (t, *, EA) in the division state information storage unit 66 in order to validate the contents of the facility state change event e sent from the facility state sensor management server 30. Is newly registered (step 107).

  On the other hand, when the division log information is sent from the position detection server 60, the position log information management unit 51 in the position information management server 50 uses the division log information as a part of the position log information in the position log information storage unit 52. sign up. FIG. 20 shows a data configuration example of the divided log information accumulated in the position log information storage unit 52 as described above.

  Although the present embodiment operates as described above, in the first embodiment, there is a change in the division state of the conference room only after the movement of any member m is detected and the position log information is generated. Is recorded in the position log information storage unit 52. On the other hand, in this embodiment, the division log information is registered in the position log information storage unit 52 when a change in the division state of the conference room is detected independently of the detection of the movement of the member m. Become.

  Subsequently, a process for detecting the location of the member m in the present embodiment will be described. The position detection sensor management server 20 detects a change in the position of the member m using the conference room, and detects the position change event e. Since the processing until notification to the detection server 60 is the same as that of the first embodiment, the description thereof is omitted.

  And the process which the position detection server 60 implements in the process which detects the location of the member m is demonstrated using the flowchart shown in FIG. FIG. 21 is a diagram corresponding to FIG. 13 of the first embodiment. The same processes as those in the first embodiment are denoted by the same step numbers, and description thereof will be omitted as appropriate. The present embodiment is different from the first embodiment in that step 128 is performed instead of the process of step 122.

  That is, when the movement information acquisition unit 63 acquires the position change event e sent from the position detection sensor management server 20 (step 121), the position information generation unit 64 includes the space ( Area) a is substituted for a1 (step 128). The position information generation unit 64 in the first embodiment inquires the division state information update unit 62 about an effective area corresponding to the space (area) a included in the position change event e, and sets a1 as a response to the inquiry. In the present embodiment, a is simply substituted for a1. More specifically, in the first embodiment, when the member m is located, for example, in the conference room 2, the division state of the conference room at that time is the conference room 2, the conference room 12, the conference room 23, or the conference. It was confirmed whether it was the chamber 123, and the information was included in the position log information. In the present embodiment, as described above, the division state information update unit 62 directly notifies the division information of the conference room to the position information management server 50. Therefore, the position information generation unit 64 includes the division state information update unit 62. It is no longer necessary to ask for the status of meeting room divisions. Since the process performed after this is the same as in the first embodiment, the description thereof is omitted.

  FIG. 22 is a diagram illustrating a data configuration example of the position log information accumulated in the position log information storage unit 52 in the present embodiment. As shown in this example, a virtual meeting room ID is not set in the location meeting room ID as in the first embodiment, and a meeting indicating a location actually detected by the position detection sensor 21 A room ID is set.

  In the present embodiment, it is configured to be realized by different servers 20, 30, 40, 50, 60 depending on functions such as processing for detecting the position and division state of a user and management of log information. The configuration of the computer for carrying out the present invention, such as configuring the position detection server 60 and the position information management server 50 with the same server computer, need not be limited to the system configuration exemplified in the present embodiment.

1 is an overall configuration diagram showing an embodiment of a location detection system according to the present invention. 3 is a conceptual diagram of a conference room used by a user for a meeting in Embodiment 1. FIG. It is the conceptual diagram which showed the hierarchical relationship of each meeting room which comprises the meeting room shown in FIG. 2 is a hardware configuration diagram of a server computer that forms a position detection server according to Embodiment 1. FIG. 1 is a block configuration diagram of a location detection system in Embodiment 1. FIG. 6 is a diagram illustrating a data configuration example of hierarchical structure information stored in a hierarchical structure information storage unit in Embodiment 1. FIG. 6 is a diagram illustrating a data configuration example of division state information stored in a division state information storage unit in Embodiment 1. FIG. 6 is a diagram illustrating a data configuration example of division state information stored in a current position information storage unit in Embodiment 1. FIG. FIG. 3 is a schematic configuration diagram showing a divided state of a conference room when explaining the operation of the first embodiment. It is the figure which showed the area set effective in the division | segmentation state of the meeting room shown in FIG. 4 is a flowchart showing processing performed by a position detection server in processing for detecting a division state of a conference room in the first embodiment. 5 is a flowchart illustrating processing in a division state information update unit that responds to an inquiry from a position information generation unit in the first embodiment. 4 is a flowchart illustrating processing performed by a position detection server in detection processing of a location of a member m in a conference room in the first embodiment. 6 is a diagram illustrating a data configuration example of position log information accumulated in a position log information storage unit in Embodiment 1. FIG. 6 is a block configuration diagram of a location detection system according to Embodiment 2. FIG. It is the figure which showed the data structural example of the meeting room reservation information managed by the meeting room reservation management server in Embodiment 2. FIG. 10 is a flowchart illustrating processing in a division state information update unit that responds to an inquiry from a position information generation unit in the second embodiment. FIG. 10 is a block configuration diagram of a location detection system in a third embodiment. 10 is a flowchart illustrating processing performed by a position detection server in processing for detecting a division state of a conference room in the third embodiment. 10 is a diagram illustrating a data configuration example of position log information accumulated in a position log information storage unit in Embodiment 3. FIG. 10 is a flowchart illustrating processing performed by a position detection server in detection processing of a location of a member m in a conference room in Embodiment 3. 10 is a diagram illustrating a data configuration example of position log information accumulated in a position log information storage unit in Embodiment 3. FIG.

Explanation of symbols

  1 CPU, 2 ROM, 3 RAM, 4 hard disk drive (HDD), 5 HDD controller, 6 mouse, 7 keyboard, 8 display, 9 input / output controller, 10 network controller, 11 internal bus, 12 network, 20 position sensor management Server, 21, 21a, 21b, 21c Position detection sensor, 30 Facility state sensor management server, 31, 31a, 31b Facility state sensor, 40 Conference room reservation management server, 50 Location information management server, 51 Location log information management unit, 52 Position log information storage unit, 60 position detection server, 61 space change information acquisition unit, 62 division state information update unit, 63 movement information acquisition unit, 64 position information generation unit, 65 position log information registration unit, 66 division state information storage unit , 67 Current position information storage unit 68 hierarchical structure information storage unit, 69 meeting room reservation information acquisition unit.

Claims (2)

A facility that can be used by dividing the interior into a plurality of spaces, and that stores the current position information that identifies the current location of each user within the facility that can change the division of the interior space Position information storage means;
A division state identification means for identifying a currently formed space from the division state of the facility;
Location detection means for detecting the location of each user in the facility;
By detecting the movement of one of the users in the facility, movement information including information that can identify the moved user and the location of the user detected by the location detection means is acquired. Movement information acquisition means for
When the movement information acquisition means acquires the movement information, the user is located based on the location included in the movement information and the currently formed space specified by the division state specifying means. A space identifying means for identifying the space being
The space specified by the space specifying means and the space where the user is located specified from the current position information of the user stored in the current position information storage means do not coincide with each other. Position information generating means for updating the current position information of the user stored in the current position information storage means when it is determined that the user has moved to a different space;
A position detection system comprising: A facility that can be used by dividing the interior into a plurality of spaces, and that stores the current position information that identifies the current location of each user within the facility that can change the division of the interior space One or more computers that are accessible to the location information storage means and are included in the location detection system ,
A division state identification means for identifying the space currently formed from the division state of the facility;
Location detecting means for detecting the location of each user in the facility;
By detecting the movement of one of the users in the facility, movement information including information that can identify the moved user and the location of the user detected by the location detection means is acquired. Movement information acquisition means
When the movement information acquisition means acquires the movement information, the user is located based on the location included in the movement information and the currently formed space specified by the division state specifying means. Space identification means for identifying the space
The space specified by the space specifying means and the space where the user is located specified from the current position information of the user stored in the current position information storage means do not coincide with each other. Position information generating means for updating the current position information of the user stored in the current position information storage means when it is determined that the user has moved to a different space;
Position detection program to function as.

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